813781
10
Zoom out
Zoom in
Previous page
1/112
Next page
Operating instructions
for the system user
VIESMANN
Heating system and mechanical ventilation system with heat pump control unit
Vitotronic 200, type WO1C
VITOTRONIC 200
5817913 GB 11/2023 Please keep safe.
2
Please follow these safety instructions closely to
prevent accidents and material losses.
Safety instructions explained
Danger
This symbol warns against the risk of injury.
!Please note
This symbol warns against the risk of material
losses and environmental pollution.
Note
Details identified by the word "Note" contain additional
information.
Target group
These operating instructions are intended for system
users.
This appliance can also be operated by children of 8
years and older, as well as by individuals with reduced
physical, sensory or mental faculties or those lacking
in experience and knowledge, provided such individu-
als are being supervised or have been instructed in the
safe use of this appliance as well as in any risks aris-
ing from it.
!Please note
Supervise children in the proximity of the appli-
ance.
Never permit children to play with the appli-
ance.
Cleaning and maintenance must not be car-
ried out by unsupervised children.
Appliance connection
The appliance may only be connected and commis-
sioned by authorised contractors.
Observe the specified electrical connection require-
ments.
Modifications to the existing installation may only be
carried out by authorised contractors.
Danger
Incorrectly executed work on the system can
lead to life-threatening accidents.
Work on electrical equipment must only be car-
ried out by a qualified electrician.
Work on the appliance
All settings and work on the appliance must be car-
ried out as specified in these operating instructions.
Further work on the appliance may only be carried
out by authorised contractors.
Never open the appliance.
Never remove casings.
Never change or remove attachments or fitted
accessories.
Never open or retighten pipe connections.
Danger
Hot surfaces can cause burns.
Never open the appliance.
Never touch the hot surfaces of uninsulated
pipes and fittings.
In case of fire
Danger
Fires create a risk of burns.
Switch the system OFF.
Use a tested fire extinguisher, class ABC.
Safety instructions
For your safety
5817913
3
Conditions for siting
Danger
Easily flammable liquids and materials (e.g.
naphtha, solvents, cleaning agents, paints or
paper) can cause deflagration and fire.
Never store or use such materials in the installa-
tion room or in direct proximity to the heating
system.
!Please note
Unsuitable ambient conditions can lead to sys-
tem damage and can put safe operation at risk.
Maintain the permissible ambient tempera-
tures as detailed in the operating instructions.
Appliance for indoor installation:
Avoid air contamination through halogenated
hydrocarbons (e.g. as in paints, solvents
and cleaning agents).
Avoid continuously high humidity levels (e.g.
through continuous drying of washing).
Auxiliary components, spare and wearing parts
!Please note
Components that were not tested with the sys-
tem may cause system damage, or may affect
its functions.
Have all installation or replacement work carried
out by qualified contractors.
Safety instructions
For your safety (cont.)
5817913
4
1. Introductory information Symbols ................................................................................................. 8
Terminology ........................................................................................... 8
Intended use .......................................................................................... 8
Product information ................................................................................ 9
Heat pump control unit ....................................................................... 9
Heat pump types ................................................................................ 9
Mechanical ventilation systems .......................................................... 10
Permissible ambient temperatures in the installation room ................ 11
Outside temperature limits for air/water heat pumps / ........... 12
Temperature limits for brine/water heat pumps and water/water heat
pumps ............................................................................................ 12
Commissioning ...................................................................................... 12
Your system is preset at the factory ....................................................... 12
Tips for saving energy ........................................................................... 13
Tips for greater comfort ......................................................................... 14
2. Operating the heat pump
control unit
Opening the heat pump control unit ....................................................... 15
Operating the heat pump control unit .................................................... 15
Calling up general Operating info ....................................................... 16
Symbols on the display ....................................................................... 16
Standard menu: Displays and settings .................................................. 17
Setting the standard temperature for the preferred heating/cooling
circuit .................................................................................................. 18
Setting the operating program for the preferred heating/cooling cir-
cuit ...................................................................................................... 18
Extended menu: Displays and settings .................................................. 18
Screensaver ........................................................................................... 19
Control system ....................................................................................... 19
Operating program information .............................................................. 20
Operating programs for heating, cooling, DHW, frost protection ........ 21
Operating programs for ventilation ..................................................... 22
Special operating programs ................................................................ 22
Procedure for setting a time program .................................................... 23
Setting a time program using central heating/central cooling as an
example .............................................................................................. 23
Setting the time program effectively ................................................... 25
Deleting time phases .......................................................................... 25
3. Central heating/central
cooling
Setting the standard room temperature for central heating/central
cooling ................................................................................................... 26
Setting the reduced room temperature for central heating .................... 26
Setting the operating program for central heating/central cooling ......... 26
Setting the time program for central heating/central cooling ................. 27
Central heating/central cooling with buffer cylinder ............................... 27
Switching on central heating/central cooling with buffer cylinder ....... 27
Setting the time program for central heating with buffer cylinder ........ 28
Setting the time program for central cooling with buffer cylinder ........ 29
Setting the heating curve/cooling curve ................................................. 29
Setting curves for central heating/central cooling ............................... 30
Stopping central heating/central cooling ................................................ 31
Temporarily adjusting the room temperature ......................................... 31
Setting Party mode for central heating/central cooling ....................... 31
Ending "Party mode" ........................................................................ 32
Saving energy during short periods of absence .................................... 32
Setting Economy mode for heating .................................................... 32
Ending "Economy mode" ................................................................. 33
Saving energy during long periods of absence ..................................... 33
Setting the Holiday program for central heating/central cooling, ven-
tilation ................................................................................................. 33
Index
Index
5817913
5
Changing "Holiday program" ........................................................... 34
Cancelling or deleting the "Holiday program" .................................. 34
4. DHW heating Setting the standard DHW temperature ................................................. 35
Setting the higher DHW temperature ..................................................... 35
Setting the operating program for DHW heating .................................... 35
Setting the time program for DHW heating ............................................ 35
Setting start optimisation .................................................................... 36
Setting stop optimisation .................................................................... 36
Setting a time program for the DHW circulation pump .......................... 37
Increasing DHW temperature temporarily ............................................. 37
Starting 1x DHW heating .................................................................... 37
Stopping DHW heating .......................................................................... 37
You do not want to heat DHW, nor heat or cool the rooms: ................ 37
You do not want to heat DHW, but do want to provide central heat-
ing: ...................................................................................................... 38
5. Heating system with elec-
tric booster heater
Enabling or blocking the electric booster heater for central heating ...... 39
Enabling or blocking the electric booster heater for DHW heating ........ 39
Setting the time program for the electric booster heater ........................ 39
6. Active cooling mode Enabling and blocking active cooling mode ........................................... 40
7. Air/water heat pumps Setting the time program for quieter operation / ......................... 41
8. Mechanical ventilation Starting ventilation ................................................................................. 42
Stopping ventilation ............................................................................... 42
Switching on Standby mode ............................................................... 42
Ending "Standby mode" ................................................................... 43
Stopping ventilation to change the filters ............................................... 43
Setting the operating program for ventilation ......................................... 43
Ventilation without heat recovery ........................................................... 43
Setting the room temperature for ventilation ...................................... 43
Setting the minimum temperature for ventilation ................................ 44
Setting a time program for ventilation .................................................... 44
Increasing the ventilation level temporarily ............................................ 45
Setting "Intensive operation" for ventilation ..................................... 45
Ending "Intensive operation" ........................................................... 45
Saving energy during short periods of absence .................................... 46
Switching on Economy mode for ventilation ....................................... 46
Ending "Economy mode" ................................................................. 46
Saving energy during long periods of absence ..................................... 46
Setting "Holiday program" for ventilation, central heating/central
cooling ................................................................................................ 46
Changing "Holiday program" ........................................................... 47
Cancelling or deleting the "Holiday program" .................................. 47
9. Power from a photovoltaic
system
Utilising power from a photovoltaic system (power generated on site) .. 48
10. Smart Grid Utilising excess power ........................................................................... 49
11. Further adjustments Setting the display contrast .................................................................... 50
Setting the display brightness ................................................................ 50
Setting names for heating/cooling circuits ............................................. 50
Setting the preferred heating/cooling circuit for the standard menu ...... 51
Setting the time and date ....................................................................... 51
Setting menu language .......................................................................... 51
Setting the temperature unit (°C/°F) ...................................................... 51
Restoring factory settings ...................................................................... 52
Index
Index
5817913
6
12. Calling up information Calling up information ............................................................................ 53
Checking the solar energy yield ......................................................... 53
Calling up energy statement ............................................................... 53
Daily log .............................................................................................. 54
Screed drying ..................................................................................... 54
Calling up messages ............................................................................. 56
13. Manual mode ................................................................................................................ 58
14. Special system versions ................................................................................................................ 59
15. Switching on and off Heat pump control unit controls ............................................................. 60
Shutting down the heat pump ................................................................ 61
With frost protection monitoring .......................................................... 61
Without frost protection monitoring (shutting down the system) ......... 61
Starting the heat pump .......................................................................... 61
16. What to do if... Rooms are too cold ................................................................................ 62
Rooms are too hot ................................................................................. 63
There is no hot water ............................................................................. 63
The DHW is too hot ............................................................................... 63
" " is flashing and "Note" is displayed ............................................... 64
" " is flashing and "Warning" is displayed .......................................... 64
" " is flashing and "Fault" is displayed ............................................... 64
"Power-OFF C5" is displayed ............................................................... 64
"External hook-up" is displayed .......................................................... 64
"External program" is displayed .......................................................... 64
"Controls locked out" is displayed ...................................................... 64
"A0 Vent.: check filter(s)" is displayed ................................................ 65
Doors/windows can only be opened with difficulty ................................. 65
Doors/windows bang when opened ....................................................... 65
17. Maintenance Cleaning the heating system ................................................................. 66
Brine/water or water/water heat pumps .............................................. 66
Air/water heat pumps .......................................................................... 66
Air/water heat pumps with a plastic surface ....................................... 66
Programming unit of the heat pump control unit ................................. 66
Heating system inspection and maintenance ........................................ 66
DHW cylinder (if installed) .................................................................. 66
Safety valve (DHW cylinder) ............................................................... 67
Potable water filter (if installed) .......................................................... 67
Damaged cables / lines ...................................................................... 67
Cleaning the mechanical ventilation system .......................................... 67
Cleaning the supply air/extract air vents ............................................. 67
Cleaning the kitchen extract air vent .................................................. 68
Cleaning or replacing filters ................................................................... 69
Filters in the Vitovent 200-C ventilation unit ....................................... 69
Filters in the Vitovent 200-W ventilation unit ....................................... 71
Filters in the Vitovent 300-C ventilation unit ....................................... 73
Filters in the Vitovent 300-F ventilation unit ........................................ 75
Filters in the Vitovent 300-W ventilation unit ....................................... 76
Replacing filters in the extract air valves ............................................ 79
Resetting the filter change service indicator ....................................... 80
18. Appendix Refrigerant ............................................................................................. 81
Overview of extended menu .................................................................. 81
Terminology ........................................................................................... 88
Defrosting ........................................................................................... 88
Active cooling mode ("Active cooling") ............................................ 89
System version ................................................................................... 89
Index
Index
5817913
7
Operating program ............................................................................. 89
Operating status ................................................................................. 89
Pressure imbalance ............................................................................ 89
Utilisation of power generated on site ................................................ 89
Electric booster heater ........................................................................ 90
Enthalpy heat exchanger .................................................................... 90
Power-OFF ......................................................................................... 91
Underfloor heating .............................................................................. 91
Reduced noise operation .................................................................... 91
Heating mode/cooling mode ............................................................... 91
Heating curve/cooling curve ............................................................... 92
Heating/cooling circuits ....................................................................... 94
Heating circuit pump ........................................................................... 94
Instantaneous heating water heater ................................................... 94
Heating water/coolant buffer cylinder ................................................. 94
Heating water buffer cylinder .............................................................. 95
Cascade ............................................................................................. 95
Controlled mechanical ventilation ....................................................... 95
Cooling mode ..................................................................................... 96
Cooling functions ................................................................................ 97
Cooling curve ...................................................................................... 97
Cooling circuit ..................................................................................... 97
Output matching ................................................................................. 97
Ventilation ........................................................................................... 97
Mixer ................................................................................................... 98
Buffer cylinder ..................................................................................... 98
Room temperature .............................................................................. 98
Return temperature ............................................................................ 98
Smart Grid (SG) .................................................................................. 98
Safety valve ........................................................................................ 100
Secondary pump ................................................................................ 100
Solar circuit pump ............................................................................... 100
Cylinder primary pump ....................................................................... 100
Drinking water filter ............................................................................. 100
Evaporator .......................................................................................... 100
Compressor ........................................................................................ 100
Condenser .......................................................................................... 100
Flow temperature ................................................................................101
Heat pump cascade ............................................................................101
Weather-compensated heating/cooling mode .................................... 101
Domestic ventilation ........................................................................... 101
Time program ..................................................................................... 101
DHW circulation pump ........................................................................ 101
Two-stage heat pumps ....................................................................... 101
System equipment and functions ...........................................................102
Information on disposal ..........................................................................103
Disposal of packaging ........................................................................ 103
Final decommissioning and disposal of the heating system ...............103
19. Keyword index ................................................................................................................104
Index
Index (cont.)
5817913
8
Symbol Meaning
Reference to other document containing
further information
1.
Step in a diagram:
The numbers correspond to the order in
which the steps are carried out.
Warning of material losses and environ-
mental pollution
Live electrical area
Pay particular attention.
Component must audibly click into place.
or
Acoustic signal
Fit new component.
or
In conjunction with a tool: Clean the sur-
face.
Dispose of component correctly.
Dispose of component at a suitable collec-
tion point. Do not dispose of component in
domestic waste.
Appliance types
Symbol Meaning
Content only applies to brine/water heat
pumps.
Content only applies to air/water heat
pumps.
Content only applies to air/water heat
pumps with separate indoor/outdoor units.
Terminology
To provide you with a better understanding of the func-
tions of your Vitotronic control unit, some terminology
is explained. This information can be found in chapter
"Terminology" in the Appendix.
Intended use
The appliance is only intended to be installed and
operated in sealed unvented heating systems that
comply with EN 12828, with due attention paid to the
associated installation, service and operating instruc-
tions.
Depending on the version, the appliance can only be
used for the following purposes:
Central heating
Central cooling
DHW heating
The range of functions can be extended with additional
components and accessories.
Introductory information
Symbols
5817913
9
Intended use presupposes that a fixed installation in
conjunction with permissible, system-specific compo-
nents has been carried out.
Commercial or industrial usage for a purpose other
than central heating/cooling or DHW heating shall be
deemed inappropriate.
Incorrect usage or operation of the appliance (e.g. the
appliance being opened by the system user) is prohibi-
ted and will result in an exclusion of liability. Incorrect
usage also occurs if the components in the heating
system are modified from their intended function.
Note
The appliance is intended exclusively for domestic or
semi-domestic use, i.e. even users who have not had
any instruction are able to operate the appliance
safely.
Product information
Heat pump control unit
The Vitotronic 200 heat pump control unit, type WO1C
controls all functions of your heating system with heat
pump and mechanical ventilation.
The heat pump control unit may be installed in different
locations depending on the type of heat pump: See
page 15.
At the front of the heat pump
At the top of the heat pump
In a separate enclosure on the wall
Heat pump types
Air/water heat pumps
Air/water heat pumps utilise energy from the ambient
air to generate heat. To achieve this, a fan draws the
ambient air through a heat exchanger (evaporator). In
the evaporator, the thermal energy from this ambient
air is transferred to the refrigerant circuit. Here, the
temperatures necessary for central heating and DHW
heating are generated. The refrigerant circuit is driven
by the compressor.
To provide central cooling, the refrigerant circuit oper-
ates in reverse mode. Heat is extracted from your
rooms and transferred to the ambient air via the evap-
orator.
Note
Air/water heat pumps can have two stages. Two-stage
air/water heat pumps have 2 compressors which can
be activated individually or simultaneously subject to
the requested heating output.
Air/water heat pumps are available in the following
casing/installation versions:
Heat pump for indoor installation
All of the heat pump components, including the heat
pump control unit, are housed in a casing and instal-
led inside the building. The outdoor air is brought to
the heat pump and returned to the outside via an air
duct system.
Heat pump for outdoor installation
All of the heat pump components, except for the heat
pump control unit, are housed in a casing that is
installed outside the building. The heat pump control
unit is mounted inside the building. The heat pump is
hydraulically connected to the heating system of the
building.
Air/water heat pumps with separate indoor/outdoor
units
The outdoor unit is installed outside the building or fit-
ted to the outside of the building. Heat is obtained from
the ambient air in the outdoor unit.
The indoor unit, including the heat pump control unit, is
installed inside the building and transfers the heat to
the heating system.
The indoor and outdoor units are connected to each
other hydraulically and electrically.
Introductory information
Intended use (cont.)
5817913
10
Brine/water heat pumps
Brine/water heat pumps utilise geothermal energy to
generate heat. The geothermal energy is transferred to
the refrigerant circuit using a heat transfer medium
(brine). Here, the temperatures necessary for central
heating and DHW heating are generated. Here too, a
compressor drives the refrigerant circuit.
To provide central cooling, the heat pump extracts heat
from your rooms and transfers it to the ground.
Brine/water heat pumps are installed inside the build-
ing.
Note
Brine/water heat pumps can have two stages. Two-
stage brine/water heat pumps have 2 compressors
which can be activated individually or simultaneously
subject to the requested heating output.
Depending on heat pump type, the two compressors
can be installed in a single casing or in 2 adjacent cas-
ing units. Both compressors are controlled by one
shared heat pump control unit.
Water/water heat pumps
Water/water heat pumps utilise e.g. groundwater to
generate heat, following the same principle as brine/
water heat pumps. The energy from the groundwater
reaches the refrigerant circuit via a heat transfer
medium.
With auxiliary components, a brine/water heat pump
can be used as a water/water heat pump.
Water/water heat pumps are installed inside the build-
ing.
Equipment and functions
The heat pump types differ in their equipment levels:
DHW cylinder
Electric booster heater (instantaneous heating water
heater)
High efficiency circulation pumps
The heat pump types differ in the available functions:
Number of heating circuits
Solar DHW heating
Central cooling
Noise reduction
Output control
Utilisation of power generated on site
Utilisation of excess power from the grid (Smart Grid)
Your contractor will have listed the equipment and
functions of your heating system in the form on
page 102.
Mechanical ventilation systems
Mechanical ventilation systems provide controlled ven-
tilation of detached houses or apartments.
If your Viessmann system includes mechanical ventila-
tion, the central ventilation unit can be controlled and
operated by the heat pump control unit.
Ventilation operation adapts automatically to your
requirements via a time program. "Economy mode"
and the "Holiday program" help you to save energy.
With "Intensive operation", you increase the air
changes in the building and quickly expel odours and
moisture to the outside.
The following central ventilation units are supported:
Vitovent 200-C
Vitovent 200-C is suitable for detached houses or
apartments with up to 120 m2 of living space.
Vitovent 200-C meets the requirements for passive
house use.
The ventilation unit can either be mounted on a wall or
installed on the ceiling.
As well as being controlled by the heat pump control
unit, ventilation can also be activated by a switch or
button (bathroom switch) connected to the ventilation
unit, e.g. if you need the highest ventilation level for a
short period.
Vitovent 200-W
Vitovent 200-W is suitable for detached houses or
apartments with up to 230 m2 of living space.
This ventilation unit is mounted on a wall.
To prevent moisture damage to the building, the venti-
lation unit adjusts the air changes automatically,
depending on the relative humidity in your rooms
(accessories required).
Vitovent 300-C
Vitovent 300-C is suitable for detached houses or
apartments with up to 90 m2 of living space.
Introductory information
Product information (cont.)
5817913
11
Vitovent 300-C meets the requirements for passive
house use.
The ventilation unit can either be mounted on a wall or
installed on the ceiling.
To ensure good air quality in your building, the ventila-
tion unit adjusts the air changes automatically, depend-
ing on the relative humidity and/or carbon dioxide con-
centration in your rooms (accessories required).
Vitovent 300-F
Vitovent 300-F is suitable for detached houses or
apartments with up to 180 m2 of living space.
Vitovent 300-F meets the requirements for passive
house use.
This ventilation unit is installed near the heat pump
control unit.
To ensure good air quality in your building, the ventila-
tion unit adjusts the air changes automatically, depend-
ing on the relative humidity and/or carbon dioxide con-
centration in your rooms (accessories required).
In addition to actual mechanical ventilation, your rooms
can also be supplied with heat from the heat pump via
the ventilation system. This method of heating the sup-
ply air can be used as the sole heat source in buildings
with very good thermal insulation. For supply air heat-
ing, your contractor will have connected the ventilation
unit to heating circuit HC1 of your heat pump. This
means heating circuit HC1 is then a ventilation heating
circuit.
Vitovent 300-W
Vitovent 300-W is suitable for detached houses or
apartments with up to 370 m2 of living space.
Vitovent 300-W meets the requirements for passive
house use.
This ventilation unit is mounted on a wall.
To ensure good air quality in your building, the ventila-
tion unit adjusts the air changes automatically, depend-
ing on the relative humidity and/or carbon dioxide con-
centration in your rooms (accessories required).
Permissible ambient temperatures in the installation room
!Please note
The appliance may develop faults if it is oper-
ated outside the specified temperature ranges.
Ensure that the specified temperature range is
maintained in the installation room.
Appliance Ambient temperature
Min. Max.
Heat pumps installed inside the building
Brine/water and water/water heat pumps including heat pump control unit 0 °C 35 °C
Vitocal 200-A air/water heat pump including heat pump control unit 5 °C 30 °C
Indoor units of air/water heat pumps with separate indoor/outdoor units 0 °C 35 °C
All other air/water heat pumps including heat pump control unit 0 °C 35 °C
Heat pump control units fitted inside the building
Separate heat pump control units of air/water heat pumps for outdoor instal-
lation
0 °C 35 °C
Central ventilation units
All types 2 °C 35 °C
Introductory information
Product information (cont.)
5817913
12
Outside temperature limits for air/water heat pumps /
Air/water heat pumps utilise outdoor air as the heat
source. They only operate efficiently within certain out-
side temperature limits, e.g. between 20 °C and
+35 °C. If the temperature rises above the upper limit
or falls below the lower limit, these heat pumps tempo-
rarily shut down. You will see a message about this on
the heat pump control unit.
In order to meet the heat demand for central heating
and DHW heating outside the temperature limits, the
heat pump control unit automatically switches on the
available auxiliary heaters as required, e.g. electric
booster heater.
Note
You must enable electric booster heaters for heat gen-
eration: See page 39.
Once the outside temperature is back within the tem-
perature limits, the heat pump is automatically ready
for operation again.
Temperature limits for brine/water heat pumps and water/water heat pumps
With brine/water heat pumps and water/water heat
pumps, the heat is transferred to the heat pump via the
heat transfer medium (brine). As heat sources, the
ground and groundwater remain at an almost constant
temperature level throughout the year. It is therefore
extremely unlikely that the permissible temperature
limits for brine entry into the heat pump will be excee-
ded or undershot.
If your brine/water heat pump or water/water heat
pump shuts down due to excessively high or low brine
inlet temperatures, there may be a fault. You will see a
message about this on the heat pump control unit. In
such cases, inform your local contractor.
Commissioning
The commissioning and matching up of the heat pump
control unit to local conditions and to the structural
characteristics of the building, plus the instruction of
the user in operating the system, must be carried out
by your heating contractor.
Note
These operating instructions also describe functions
that are only available on some heat pump models or
only with accessories. These functions are not specifi-
cally identified.
Your contractor will have listed the equipment and
functions of your heating system in the form on
page 102.
For questions relating to the scope of and accessories
for your heat pump and your heating system, contact
your contractor.
Your system is preset at the factory
Your heating system is preset at the factory and is
therefore ready for operation:
Central heating/central cooling
Your home will be heated to 20 °C from 00:00 to
24:00 h "Set room temperature" (standard room
temperature).
If a buffer cylinder is installed, this buffer cylinder will
be heated.
Active cooling mode is blocked: See page 40.
DHW heating
The DHW is heated every day from 00:00 to 24:00 h
to 50 °C "Set DHW temperature".
Any installed DHW circulation pump is switched off.
The electric booster heater, if installed, is enabled:
See page 39.
Introductory information
Product information (cont.)
5817913
13
Frost protection
Frost protection is ensured for your heat pump, DHW
cylinder and any buffer cylinder that may be instal-
led.
Note
In the following cases, frost protection is only guar-
anteed with a booster heater (on site):
Air/water heat pumps:
At temperatures below 15 °C
When there is a heat pump fault
Auxiliary heaters may include instantaneous heating
water heaters or oil/gas boilers.
Mechanical ventilation with Viessmann ventilation
unit
From 00:00 to 24:00 h: Mechanical ventilation in the
"Standard" operating status
Wintertime/summertime changeover
This changeover is automatic.
Date and time
The date and time were set by your contractor.
You can change the settings at any time to suit your
individual requirements.
Power failure
All settings are saved if there is a power failure.
Tips for saving energy
Saving energy on central heating/central cooling
Do not overheat your home. Every degree of room
temperature reduction saves up to 6 % on your heat-
ing bills.
Do not set your individual preferred temperature too
high, e.g. not above 20 °C: See page 26
Heat your home to the reduced temperature at night
or during regular absences (not applicable to under-
floor heating). To do so, adjust the time program for
central heating: See page 27.
Adjust the heating or cooling curves so that your
home is heated or cooled to your individual preferred
temperature all year round: See page 30.
To switch off functions that are not required (e.g.
central heating in summer), set the "Only DHW" and
"Standby mode" operating programs: See
pages 35 and 61.
To reduce room temperature during a short period of
absence (except for underfloor heating), set "Econ-
omy mode": See page 32.
If you are going away, set the "Holiday program":
See page 33.
During the period that you are away, the room tem-
perature will be reduced and DHW heating switched
off.
Saving energy on DHW heating
At night or during regular absences, heat the DHW to
a lower temperature. To do so, adjust the time pro-
gram for DHW heating: See page 35.
Switch on DHW circulation only for those times in
which you regularly use hot water. To do so, adjust
the time program for the DHW circulation pump: See
page 37.
Saving energy on mechanical ventilation (in con-
junction with a ventilation unit)
If you are absent for a short period, select "Econ-
omy mode" or the "Standard operation" operating
program. During this period, the ventilation level will
be reduced: See page 43 and 46.
If you are going away, set the "Holiday program":
See page 46.
During your absence, the ventilation level is reduced.
Utilisation of power generated on site (in conjunc-
tion with a photovoltaic system)
Use the power generated by your photovoltaic sys-
tem for your heating system: See page 48.
Utilising excess power (Smart Grid)
Utilise free or cheap excess power from the power
supply utility for your heating system: See page 49.
For additional energy saving functions of the heat
pump control unit, please contact your contractor.
Introductory information
Your system is preset at the factory (cont.)
5817913
14
More comfort in your home
Set your individual preferred temperature: See
page 18.
Set the time program for your heating/cooling circuits
such that your individual preferred temperature is
automatically reached when you are present: See
page 27.
Adjust the heating or cooling curves so that your
home is heated or cooled to your individual preferred
temperature all year round: See page 30.
Set the time program for the buffer cylinder (if instal-
led) such that there is always sufficient heating water
or coolant available for your heating/cooling circuits:
See page 27.
Enable the electric booster heater for central heating.
If large quantities of heat are required rapidly, this
booster heater will be switched on in addition to the
heat pump: See page 39.
Enable active cooling mode. This will provide high
cooling capacity if required: See page 40.
If you need a higher room temperature quickly, set
"Party mode": See page 31.
Example:
Late in the evening, the reduced room temperature is
set by the time program. Your guests stay longer.
Sufficient DHW heating for your needs
Set the time program for DHW heating such that
there is always sufficient hot water for your habitual
routine: See pages 35 and 37.
Example:
You need more DHW in the morning than in the day-
time.
Optimise the time program for the DHW cylinder.
Use the start optimisation and stop optimisation func-
tions: See pages 36 and 36.
Set the time program for the circulation pump such
that at times when hot water is run more frequently,
DHW is available immediately from the taps: See
page 37.
Enable the electric booster heater for DHW heating.
If large quantities of hot water are required rapidly,
this booster heater will be switched on in addition to
the heat pump: See page 39.
If you need a higher temperature in your hot water
for a short while, set "1x DHW heating": See
page 37.
Sufficient mechanical ventilation for your needs (in
conjunction with a ventilation unit)
If the air humidity is especially high or you are deal-
ing with strong odours, e.g. from cooking, increase
the rate of air exchange in your home. Set "Inten-
sive operation": See page 45.
During the heating season, the humidity of the venti-
lation air can fall substantially. To prevent the air in
your home from getting too dry, reduce the ventila-
tion level. To do so, adjust the time program: See
page 44 (not necessary for ventilation units with
enthalpy heat exchangers).
Quieter operation of air/water heat pumps
Reduce the noise level of your air/water heat pump,
at night for instance. To do so, adjust the time pro-
gram for quieter operation: See page 41.
Introductory information
Tips for greater comfort
5817913
15
The heat pump control unit may look different depend-
ing on the type of heat pump.
Heat pump control unit at the front of the appliance
14°C 21°C
Fig. 1
Heat pump control unit on the top of the appliance
BA
Fig. 2
ATop part of control unit with programming unit
BPushbutton for changing the angle
Heat pump control unit in a separate enclosure on the
wall
Fig. 3
Note
For air/water heat pumps installed outside the build-
ing.
Brief operating instructions can be found on the back
of the flap. To open, pull the top edge of the flap for-
ward.
Operating the heat pump control unit
You can change all heat pump control unit settings
centrally at the programming unit.
If remote controls are installed in your rooms, you can
also adjust the settings at these remote controls.
Remote control operating instructions
Operating the heat pump control unit
Opening the heat pump control unit
5817913
16
14°C 21°C
Fig. 4
To take one step back in the menu.
or
To terminate an adjustment in progress.
Cursor keys
Scrolls through the menu or adjusts values.
OK Confirms your selection or saves the setting
made.
Calls up "Operating info" (see following chapter)
or additional information on the selected menu.
Calls up the extended menu.
2 control levels are available:
The standard menu: See page 17.
The extended menu: See page 18.
Note
The screensaver is activated if you have not made
any adjustments on the programming unit for a few
minutes: See page 19.
Calling up general Operating info
The display shows brief instructions on how to operate
the appliance.
How to call up "Operating info":
Screensaver is active; see page 19:
Press .
From anywhere in the menu:
Press repeatedly until the standard menu is
shown: See page 17.
Press .
Symbols on the display
These symbols are not always displayed, but appear
subject to the system version and the operating condi-
tion.
Displays:
Frost protection is active.
Central heating to standard room temperature
Central heating with reduced room temperature
Party mode is active for central heating.
Economy mode is active for central heating.
In conjunction with a solar thermal system:
Solar circuit pump is running.
Compressor is running.
For brine/water and water/water heat pumps:
Primary pump is running.
For air/water heat pumps:
Fan is running.
Instantaneous heating water heater is switched on
(electric booster heater).
In conjunction with a cooling circuit:
Cooling mode is active.
In conjunction with a photovoltaic system:
Utilisation of power generated on site is active.
In conjunction with a special connection to the
power supply utility (Smart Grid):
Power-OFF or utilisation of excess power is active.
The heat pump start characteristics are influenced
by the power supply utility.
Heating/cooling circuits:
HC... Heating circuit ...
or
Heating/cooling circuit ...
SKK Separate cooling circuit
Operating programs:
Operating programs for heating, cooling, DHW:
, , , :
Explanation of symbols: See page 21.
Operating programs for ventilation:
Ventilation levels
0
to
4
, depending on the selec-
ted operating program: See page 22.
Ventilation levels (in conjunction with a ventilation
unit):
0
No ventilation
1
Minimum air flow rate
Operating the heat pump control unit
Operating the heat pump control unit (cont.)
5817913
17
2
Reduced air flow rate
3
Standard air flow rate
4
Maximum air flow rate
2
Frost protection for the ventilation unit is active.
Symbol using ventilation level 2 as an example
2
Preheating coil for the ventilation unit, if installed,
is switched on. Symbol using ventilation level 2
as an example
The ventilation unit has been switched off at the
system ON/OFF switch.
or
The power supply plug has been pulled out.
Messages: See page 56.
Fault
Warning
Note
Standard menu: Displays and settings
In the standard menu, you can make and check the
following settings for the preferred heating/cooling cir-
cuit E:
Standard room temperature (your individual prefer-
red temperature)
Operating program
Call up the standard menu as follows:
Screensaver is active; see page 19:
Press OK.
If you are in the extended menu, see page 18:
Press repeatedly until the standard menu
appears.
40°C
Flow temperature
14°C 21°C
HC1
E
Screed drying
B
C
A
D
Fig. 5
AOperating program for the preferred heating/cool-
ing circuit (E)
BCurrent outside temperature
CSet room temperature for the preferred heating/
cooling circuit (E)
DInformation bars
EPreferred heating/cooling circuit: See page 51.
Not shown if only one heating/cooling circuit is
installed.
Note
In the case of special system versions, the standard
menu may differ from the display shown here: See
chapter "Special system versions" on page 59.
The settings for the preferred heating/cooling circuit
can also be adjusted in the extended menu: See
page 18.
The settings for any other connected heating/cooling
circuits can only be adjusted in the extended menu.
The settings for ventilation (if installed) can only be
adjusted in the extended menu.
Your contractor can block operation for the standard
menu. In such cases, you will not be able to make
adjustments in either the standard menu or the
extended menu. "Controls locked out" is dis-
played.
Information bars D
The upper information bar displays special operating
programs: See page 22.
"Screed drying"
"External hook-up"
"External program"
Operating the heat pump control unit
Operating the heat pump control unit (cont.)
5817913
18
The lower information bar shows the following infor-
mation, depending on what you have installed on your
system:
"Flow temperature":
Temperature of the heating water or coolant at the
heat pump outlet:
This information is displayed if your system has a
heating water buffer cylinder or has no buffer cylin-
der at all.
"Buffer cyl.: Central heating"
Your system has a heating water/coolant buffer cylin-
der for central heating and central cooling: See
page 27.
For this buffer cylinder, you have switched central
heating on.
"Buffer cyl.: Central cooling"
Your system has a heating water/coolant buffer cylin-
der for central heating and central cooling: See
page 27.
For this buffer cylinder, you have switched central
cooling on.
Setting the standard temperature for the preferred heating/cooling circuit
Press the following keys:
1. / for the required value
2. OK to confirm
Setting the operating program for the preferred heating/cooling circuit
Press the following keys:
1. / for the required operating program
2. OK to confirm
Extended menu: Displays and settings
In the extended menu, you can adjust and call up all
the settings from the heat pump control unit range of
functions, e.g. holiday program and time programs.
You can find the menu overview from page 81.
Call up the extended menu as follows:
If the screensaver is active:
Press OK and then .
From anywhere in the menu:
Press .
Note
Your contractor can block operation for the extended
menu. In this case, you can only call up messages
(see page 53) and start manual mode (see
page 58). Use manual mode only after consulting
your contractor.
Fig. 6
FDialogue line
Operating the heat pump control unit
Standard menu: Displays and settings (cont.)
5817913
19
The screensaver will become active if you have not
adjusted any settings on the programming unit for a
few minutes. The display brightness is reduced.
14°C 21°C
B
C
Fig. 7
BCurrent outside temperature
CSet room temperature
1. Press OK.
This takes you to the standard menu: See page 17.
2. Press .
The selected menu point is highlighted in white.
This takes you to the extended menu: See
page 18.
Instructions on what to do are provided in dialogue
line F: See diagram 6 on page 18.
Control system
You can input the central heating/central cooling set-
tings for every heating/cooling circuit. It is therefore
necessary to select the required heating/cooling circuit
prior to inputting the settings (e.g. room temperature).
The following diagram shows how to input settings,
using the set room temperature setting as an example.
The diagram shows the setting with and without select-
ing the heating circuit, as well as various dialogue
lines.
Operating the heat pump control unit
Screensaver
5817913
20
Vv
or
OK
Ú
OK
OK
Heating circuit 1
Economy mode
ÙÚ
Party mode
HC1 Htg circuit selection ÙÚ
HC2
Was selected
Heating circuit 2
Set room temperature HC1
20 °C
Change with (
Set room temperature HC1
22 °C
Adopt with OK
Set room temperature HC1
22 °C
Adopted
ê
ê
ÙÚ
HC1
Heating circuit 2
Economy mode
ÙÚ
Party mode
HC1
Continue with OK
ê
ê
ÙÚ
HC2
Set red. room temp
Set red. room temp
Set room temperature
Set room temperature
Vv
or
OK
Set room temperature HC2
20 °C
Change with (
Set room temperature HC2
22 °C
Adopt with OK
Set room temperature HC2
22 °C
Adopted
OK / /
v v
Heating circuit 1
Economy mode
Party mode
HC1
Continue with OK
ê
ê
Set red. room temp
Set room temperature
/
v v
OK
OK
40 °CFlow temperature
HC1
14 °C 21 °C
Menu
DHW
Continue with OK
Manual mode
System
Heating/cooling
i
Select with (
Fig. 8
Operating program information
Using the "Operating program", you set the functions
that you want on your system, e.g. whether you want
rooms heated, or DHW heating only.
If multiple heating circuits are present in your heating
system, set the "Operating program" separately for
each heating circuit.
Operating the heat pump control unit
Control system (cont.)
5817913
21
Operating programs for heating, cooling, DHW, frost protection
Only central heating
Heat/cooling circ System version with DHW heating System version without DHW heating
Symbol Operating program Symbol Operating program
Heating circuit
"HC1", "HC2",
"HC3"
"Standby mode" "Standby mode"
"Only DHW"
"Heating and DHW"
(Factory setting)
"Htg"
Central heating and central cooling
Heat/cooling circ System version with DHW heating System version without DHW heating
Symbol Operating program Symbol Operating program
Heating/cooling cir-
cuit
"HC1", "HC2",
"HC3"
"Standby mode" "Standby mode"
"Only DHW"
"Heating/cooling and DHW"
(Factory setting)
"Heating/cooling"
Separate cooling
circuit
"SKK"
"Standby mode" "Standby mode"
"Only DHW"
"Cooling and DHW"
(Factory setting)
"Cooling"
Functions of the operating programs
Central heating/central cooling and DHW heating
Symbol Operating program Function
"Heating and DHW" The rooms of the selected heating circuit are heated in accordance
with the room temperature and time program specified: see chapter
"Central heating/central cooling".
DHW is heated in accordance with the DHW temperature and time
program specified: see chapter "DHW heating".
"Heating/cooling and
DHW"
The rooms of the selected heating/cooling circuit are heated/cooled in
accordance with the room temperature and time program specified:
see chapter "Central heating/central cooling"
DHW is heated in accordance with the DHW temperature and time
program specified: see chapter "DHW heating".
"Cooling and DHW" The rooms in the separate cooling circuit are cooled constantly. You
cannot set a time program.
DHW is heated in accordance with the DHW temperature and time
program specified: see chapter "DHW heating".
DHW heating
Symbol Operating program Function
"Only DHW" DHW is heated in accordance with the DHW temperature and time
program specified: see chapter "DHW heating".
No central heating/central cooling
Frost protection for a buffer cylinder (if installed) is active.
Operating the heat pump control unit
Operating program information (cont.)
5817913
22
Central heating/central cooling
Symbol Operating program Function
"Htg" The rooms of the selected heating circuit are heated in accordance
with the room temperature and time program specified: see chapter
"Central heating/central cooling".
"Heating/cooling" The rooms of the selected heating/cooling circuit are heated/cooled in
accordance with the room temperature and time program specified:
see chapter "Central heating/central cooling".
"Cooling" The rooms in the separate cooling circuit are cooled constantly. You
cannot set a time program.
Frost protection
Symbol Operating program Function
"Standby mode" No central heating/central cooling
No DHW heating
Frost protection for the heat pump, DHW cylinder, heating/cooling cir-
cuits and a buffer cylinder (if installed) is active.
Operating programs for ventilation
Operating program Operating status Air flow rate Ventilation
stage
"Standby mode" No ventilation
0
"Standard operation" Minimum air flow rate
1
"Ventilation program" "Reduced" Reduced air flow rate
2
"Standard" Standard air flow rate
3
"Intensive" Maximum air flow rate
4
Special operating programs
Special operating programs are available according to
system equipment.
Display in the standard menu
40°CFlow temperature
HC1
14°C 21°C
Screed drying
D
Fig. 9
DSpecial operating programs in the upper informa-
tion bar
Note
In the extended menu, you can call up the set operat-
ing program under "Information": See page 53.
Screed drying
This function is enabled by your contractor. Your
screed is dried in line with a set time program suitable
for the relevant building materials (temperature/time
profile). Your settings for central heating/central cooling
have no effect for the duration of screed drying
(max. 30 days). This function can be altered or
switched off by your contractor.
Operating the heat pump control unit
Operating program information (cont.)
5817913
23
External hook-up
Your contractor has connected external switching
contacts to your heat pump control unit and set their
functions. With these switching contacts, the heat
pump or particular system components such as a
mixer can be switched on or off.
or
Your contractor has integrated the heat pump into a
building management system. This system switches
particular functions, system components or operating
programs on or off, regardless of your settings.
Note
While "External hook-up" is active, you cannot
change the set operating program on the heat pump
control unit. Once "External hook-up" has ended, the
heat pump control unit continues using the previously
set operating program.
External program
Your contractor has connected the heat pump control
unit to the internet, e.g. via the Vitoconnect internet
interface.
The operating program and other functions are
switched on or off via a Viessmann app.
Note
While "External program" is active, you can change
the set operating program on the heat pump control
unit after responding to a prompt. Once "External
program" has ended, the heat pump control unit con-
tinues using the previously set operating program.
Holiday program
See page 33.
Procedure for setting a time program
The following explains how to enter the settings for a
time program. The specifics of the individual time pro-
grams can be found in the relevant chapters.
You can set up a time program for the following func-
tions:
Central heating/central cooling: See page 27.
Heating a buffer cylinder: See page 28.
Cooling a buffer cylinder: See page 29.
DHW heating: See page 35.
DHW circulation pump: See page 37.
Electric booster heater: See page 39.
Quieter operation of air/water heat pumps: See
page 41.
Mechanical ventilation (in conjunction with ventilation
unit): See page 44.
The time program allows you to divide the day into
sections. These are called time phases. It is for you to
decide what happens in these time phases, e.g.
whether your rooms should be heated to the standard
room temperature. For this, set an operating status
for each time phase.
The available operating statuses differ, e.g. through
different temperature levels.
You can set the time program individually, to be the
same, or different, for every day of the week.
You can select up to 8 time phases per day.
The time phases are numbered.
For each time phase you set the start and end
points.
The selected time phase is illustrated by a white bar
on the time chart. The length of the bar reflects the
length of time.
The individual operating status is indicated on the
time chart by bars of different heights.
Where several time phases overlap, the operating
status with the highest bar takes priority.
In the extended menu, you can call up the time pro-
grams under "Information": See page 53.
Setting a time program using central heating/central cooling as an example
1. Extended menu:
2. "Heating/cooling"
3. If applicable, use / to select the required heating/
cooling circuit.
4. "Time proghtg/cooling"
5. Select part of the week or a day.
6. Select a time phase ! to (. The selected time
phase is illustrated by a white bar on the time
chart.
7. Set the start and end points for the relevant time
phase. The length of the white bar on the time
chart is adjusted accordingly.
Operating the heat pump control unit
Operating program information (cont.)
5817913
24
8. Select the required operating status "Reduced",
"Standard" or "Fixd value". The individual oper-
ating status is indicated on the time chart by bars
of different heights.
9. Press to exit the menu.
Note
If you want to terminate a time phase setting process
prematurely, keep pressing until the required dis-
play appears.
Example of operating status and time phases in
the time program for central heating
Heating Mo-Su
?08:30 - 12:10 u
Select with
Standard
(
!00:00 - 08:30 u
0 2 4 6 8 10 12 14 16 18 20 22 24
Reduced
?!
HC1
§ $ %
Fig. 10
Time program for part of the week: "MondaySun-
day" ("Mo-Su")
Time phase !:
00:00 to 08:30 h: "Reduced"
Time phase ?:
08:30 to 12:10 h: "Standard"
Time phase §:
13:00 to 18:30 h: "Reduced"
Time phase $:
20:00 to 22:00 h: "Fixd value"
Time phase %:
22:00 to 24:00 h: "Reduced"
Between the time phases, the "Standby" operating
status is active; in the example shown from 12:10 to
13:00 h and from 18:30 to 20:00 h.
Operating the heat pump control unit
Procedure for setting a time program (cont.)
5817913
25
Setting the time program effectively
Example: you want to set the same time program
for every day except Monday:
1. Select the period "MondaySunday" and set the
time program.
Heating time program
Monday
Saturday-Sunday
Monday-Friday
Monday-Sunday
ê
ê
ê
ç
HC1
Select with (
Fig. 11
Note
The tick is always set at the sections of the week
with identical time phases.
Factory setting: same for all days of the week,
therefore "MondaySunday" is ticked.
2. Then select "Monday" and adjust the time pro-
gram for that day.
Note
The selected time phases for "MondaySunday"
remain active for "Tuesday" to "Friday".
"SaturdaySunday" is ticked because this is now
the only part of the week where the set time pha-
ses match the days shown.
Heating time program
Monday
Saturday-Sunday
Monday-Friday
Monday-Sunday
ê
ê
ê
ç
HC1
Select with (
Fig. 12
Deleting time phases
Set the time for the end point to the same time that
was set for the start point.
or
For the start point, select a time prior to 00:00 h.
The display shows the selected time phase as
"- - : - -".
HC1
Change with (
- -:- - - -:- - u
0 2 4 6 8 10 12 14 16 18 20 22 24
---
Mo-Su
Heating/cooling
?08:30 - 12:10 uStandard
!
Fig. 13
Operating the heat pump control unit
Procedure for setting a time program (cont.)
5817913
26
The standard room temperature is the temperature at
which you feel comfortable. Your home is always
heated or cooled to this temperature when a time
phase with the operating status "Standard" is active in
the time program.
Setting the time program for central heating/central
cooling: See page 27.
Factory setting: 20 °C
For the preferred heating/cooling circuit
1. Standard menu:
/ for the required value
2. OK to confirm
For all heating/cooling circuits
1. Extended menu:
2. "Heating" or "Heating/cooling"
3. If applicable, use / to select the required heating/
cooling circuit
4. "Set room temperature"
5. Set the required value.
Information for operation with a ventilation unit
Set the room temperature for ventilation approx. 2 °C
higher than the standard room temperature for central
heating/central cooling: See page 43.
This setting will ensure that the bypass functions cor-
rectly.
Setting the reduced room temperature for central heating
You can set the room temperature for those time peri-
ods during which you require less heat.
This room temperature applies to the following time
periods:
In the time phases for which you set the operating
status to "Reduced" in the "Time program": See
page 27
In the holiday program: See page 33.
Factory setting: 16 °C
Note
No set reduced room temperature can be set for a
separate cooling circuit.
1. Extended menu:
2. "Heating" or "Heating/cooling"
3. If applicable, use / to select the required heating/
cooling circuit
4. "Set red. room temp"
5. Set the required value.
Setting the operating program for central heating/central cooling
In the "Operating program" for central heating you
set whether the central heating is enabled or not.
For an overview of the operating programs, see
page 21.
For the preferred heating/cooling circuit
Standard menu:
1. / for the operating program:
E.g. "Heating and DHW"
2. OK to confirm
For all heating/cooling circuits
Extended menu:
1.
2. "Heating" or "Heating/cooling"
3. If applicable, use / to select the required heating/
cooling circuit
4. "Operating program"
5. Select the required operating program, e.g. "Heat-
ing and DHW"
Central heating/central cooling
Setting the standard room temperature for central heating/central cooling
5817913
27
In the time programs for central heating and central
cooling you set the time phrases during which your
home is heated or cooled and to what temperature.
To do so, select an operating status for each time
phase: See chapter "Operating status for central heat-
ing/central cooling".
Factory setting: one time phase from 00:00 to 24:00 h
for every day of the week with the "Standard" operat-
ing status.
Note
The factory setting is suitable for operation with
underfloor heating systems.
No time program can be set for a separate cooling
circuit.
1. Extended menu:
2. "Heating" or "Heating/cooling"
3. If applicable, use / to select the required heating/
cooling circuit
4. "Time program heating" or "Time proghtg/cool-
ing"
5. Set the required time phases and operating status.
To see how to set a time program: See page 23.
Note
Between the time phases, rooms are neither heated
nor cooled. Only the heat pump frost protection is
active ("Standby" operating status).
When making settings, please bear in mind that your
heating system requires some time to heat or cool
the rooms to the required temperature.
Operating status for central heating/central cooling
"Standard"
Central heating/central cooling takes place to the
standard room temperature "Set room tempera-
ture": See page 26.
"Reduced"
Central heating/central cooling takes place to the
reduced room temperature "Set red. room temp":
See page 26.
Note
In the "Reduced" operating status, a heating/cooling
circuit is not cooled.
"Fixd value"
Central heating takes place with the max. permissi-
ble flow temperature of the respective heating circuit,
irrespective of the outside temperature.
Central cooling takes place with the min. flow tem-
perature of the respective heating circuit, irrespective
of the outside temperature.
Factory settings: Your contractor may have adjusted
these values.
Max. heating flow temperature: 40 °C
Min. cooling flow temperature: 20 °C
Central heating/central cooling with buffer cylinder
Note
Further information regarding the different buffer cylin-
ders can be found in chapter "Terminology" in the
Appendix: See page 92.
Switching on central heating/central cooling with buffer cylinder
System with heating water buffer cylinder
For central heating, the heating water buffer cylinder
supplies your heating/cooling circuits with heat. The
heat pump heats the heating water buffer cylinder
automatically, as soon as the outside temperature
falls below the heating limit. This heating limit has
been set by your contractor.
For central cooling (if installed), the heat pump sup-
plies the cooling circuit directly, not via the heating
water buffer cylinder. Central cooling is automatically
switched on if the outside temperature rises above the
cooling limit. The cooling limit has also been set by
your contractor.
Central heating/central cooling
Setting the time program for central heating/central cooling
5817913
28
System with heating water/coolant buffer cylinder
A heating water/coolant buffer cylinder can either heat
or cool your heating/cooling circuits.
To heat your home, you must switch on central heating
via the heating water/coolant buffer cylinder. To cool
your home, you must switch on central cooling via the
heating water/coolant buffer cylinder.
Note
Simultaneous central heating and central cooling is
not possible.
Central cooling via a separate cooling circuit is not
possible.
Switching on central heating for heating water/
coolant buffer cylinder
1. Extended menu:
2. "System"
3. "Buffer cyl operating mode"
4. "Heating mode"
Switching on central cooling for heating water/
coolant buffer cylinder
1. Extended menu:
2. "System"
3. "Buffer cyl operating mode"
4. "Cooling mode"
Setting the time program for central heating with buffer cylinder
In the time program for central heating with buffer cyl-
inder, you set the time phases in which your buffer cyl-
inder is heated and to what temperatures. In addition,
you specify whether the entire volume of the buffer cyl-
inder or just the top section is heated.
When setting the time program, you select an operat-
ing status for each time phase: See chapter "Operating
status for heating the buffer cylinder".
Note
This time program applies either to a heating water
buffer cylinder or to a heating water/coolant buffer cyl-
inder in heating mode.
Factory setting: One time phase from 00:00 to 24:00 h
for every day of the week with the "Standard" operat-
ing status
The time phases for heating the buffer cylinder must
cover all time phases for central heating (for all heat-
ing circuits).
If you switch off heating of the heating water buffer
cylinder with the time program (all time phases are
deleted "- - : - -"), your rooms will not be heated.
We recommend that the buffer cylinder should be
heated continuously.
1. Extended menu:
2. "System"
3. "Time prog buffer cyl"
4. Set the required time phases and operating status.
To see how to set a time program: See page 23.
Note
The buffer cylinder is not heated between the time
phases. Only frost protection for the buffer cylinder is
active.
When setting the time program, please bear in mind
that your heat pump requires some time to heat the
buffer cylinder to the required temperature.
Operating status for heating the buffer cylinder
"Standard"
The entire volume in the buffer cylinder is heated to
the highest set flow temperature for all connected
heating/cooling circuits.
The set flow temperature of a heating/cooling circuit
results from the heating curve, the outside tempera-
ture and the required room temperature.
"Reduced"
The top section of the buffer cylinder is heated to the
highest set flow temperature for all connected heat-
ing/cooling circuits.
The set flow temperature of a heating/cooling circuit
results from the heating curve, the outside tempera-
ture and the required room temperature.
"Fixd value"
The entire volume in the buffer cylinder is heated to
a fixed temperature.
Factory setting: 50 °C
Your contractor may have adjusted this value.
You can utilise the "Fixd value" operating status,
e.g. to heat the buffer cylinder to a higher tempera-
ture with economical night tariff power.
Central heating/central cooling
Central heating/central cooling with buffer… (cont.)
5817913
29
Note
Above a specified outside temperature, the buffer cyl-
inder will no longer be heated, even in the "Fixd
value" operating status. Your contractor can adjust
this temperature limit.
Setting the time program for central cooling with buffer cylinder
In the time program for central cooling with buffer cylin-
der, you set the time phases in which your buffer cylin-
der is cooled and to what temperatures. In addition,
you specify whether the entire volume of the buffer cyl-
inder or just the top section is cooled.
When setting the time program, you select an operat-
ing status for each time phase: See chapter "Operating
status for cooling the buffer cylinder".
Note
This time program applies only to a heating water/cool-
ant buffer cylinder in cooling mode.
Factory setting: One time phase from 00:00 to 24:00 h
for every day of the week with the "Standard" operat-
ing status
The time phases for cooling the buffer cylinder must
cover all time phases for central cooling (for all heat-
ing/cooling circuits).
If you switch off heating of the heating water buffer
cylinder with the time program (all time phases are
deleted "- - : - -"), your rooms will not be heated.
We recommend that the buffer cylinder should be
cooled continuously.
1. Extended menu:
2. "System"
3. "Time prog. coolnt buff cyl."
4. Set the required time phases and operating status.
To see how to set a time program: See page 23.
Note
The buffer cylinder is not cooled between the time
phases. Only frost protection for the buffer cylinder is
active.
When setting the time program, please bear in mind
that your heat pump requires some time to cool the
buffer cylinder to the required temperature.
Operating status for cooling the buffer cylinder
"Standard"
The entire volume in the buffer cylinder is cooled to
the lowest set flow temperature for all connected
heating/cooling circuits.
The set flow temperature of a heating/cooling circuit
results from the cooling curve, the outside tempera-
ture and the required room temperature.
"Reduced"
The top section of the buffer cylinder is cooled to the
lowest set flow temperature for all connected heat-
ing/cooling circuits.
The set flow temperature of a heating/cooling circuit
results from the cooling curve, the outside tempera-
ture and the required room temperature.
"Fixd value"
The entire volume in the buffer cylinder is cooled to a
fixed temperature.
Factory setting: 20 °C
Your contractor may have adjusted this value.
You can utilise the "Fixd value" operating status,
e.g. to cool the buffer cylinder to a lower temperature
with economical night tariff power.
Setting the heating curve/cooling curve
So that your rooms are heated or cooled optimally at
all outside temperatures, you can adjust the "Level"
and "Slope" of the "Heating curve" or the "Cooling
curve". This allows you to influence the flow tempera-
ture provided by the heat pump.
Note
Further information on setting the "Heating curve" or
"Cooling curve" can be found in chapter "Terminol-
ogy" in the Appendix: See page 92.
Central heating/central cooling
Central heating/central cooling with buffer… (cont.)
5817913
30
Setting curves for central heating/central cooling
Factory settings
"Slope" "Level"
Heating curve 0.6 0
Cooling curve 1.2 0
1. Extended menu:
2. "Heating" or "Heating/cooling"
3. If applicable, use / to select the required heating/
cooling circuit
4. "Heating curve" or "Cooling curve"
5. "Slope" or "Level"
6. Set the required value.
Note
You will be provided with tips on when and how to
change the heating curve slope and level. Press .
Example: changing the heating curve slope to 1.1
A graph clearly shows the change in the heating curve
as soon as you alter the value for the slope or level.
Heating curve
Change with (
HC1
Slope
100°C
20 10 0 -10 -20 -30
35°C
1.1
43°C 49°C 55°C
Fig. 14
Set flow temperatures are assigned to the different
outside temperatures. Outside temperatures are
shown on the horizontal axis. Set flow temperatures for
the heating circuit are highlighted in white.
Tips for setting the "Heating curve"
Heating characteristics Adjustments to the "Heating curve"
The home is too cold during the winter. Set the "Slope" to the next level up.
The home is too warm during the winter. Set the "Slope" to the next level down.
The home is too cold during the spring/autumn and win-
ter.
Set the "Level" to a higher value.
The home is too warm during the spring/autumn and
winter.
Set the "Level" to a lower level.
The home is too cold during the spring/autumn but
warm enough during the winter.
Set the "Slope" to the next level down and "Level" to
a higher value.
The home is too warm during the spring/autumn but
warm enough during the winter.
Set the "Slope" to the next level up and "Level" to a
lower value.
Tips for setting the "Cooling curve"
Cooling characteristics Adjustments to the "Cooling curve"
The home is too warm during the summer. Set the "Slope" to the next level up.
The home is too cold during the summer. Set the "Slope" to the next level down.
The home is too warm during the spring/autumn and
summer.
Set the "Level" to a higher value.
The home is too cold during the spring/autumn and
summer.
Set the "Level" to a lower level.
The home is too warm during the spring/autumn but
cold enough during the summer.
Set the "Slope" to the next level down and "Level" to
a higher value.
The home is too cold during the spring/autumn but cold
enough during the summer.
Set the "Slope" to the next level up and "Level" to a
lower value.
Central heating/central cooling
Setting the heating curve/cooling curve (cont.)
5817913
31
To switch off central heating for a heating/cooling cir-
cuit, select the "Only DHW" or "Standby mode"
operating program.
For the preferred heating/cooling circuit
1. Standard menu:
/ for the operating program:
"Only DHW" (no central heating/cooling)
or
"Standby mode" (frost protection active)
2. OK to confirm
For all heating/cooling circuits
1. Extended menu:
2. "Heating" or "Heating/cooling"
3. If applicable, use / to select the required heating/
cooling circuit
4. "Operating program"
5. "Only DHW" (no central heating/cooling)
or
"Standby mode" (frost protection active)
For information on the operating programs, see
page 21.
Temporarily adjusting the room temperature
If you wish to adjust the room temperature temporarily,
select "Party mode". "Party mode" is independent
of the time program for central heating/central cooling.
For central heating, the home is heated to the tem-
perature set for "Party mode".
For central cooling, the home is cooled to the tem-
perature set for "Party mode".
If your contractor has not made alternative adjust-
ments, DHW is heated to the selected DHW temper-
ature first, before central heating/central cooling
commences.
The DHW circulation pump is switched on (if instal-
led).
Setting Party mode for central heating/central cooling
1. Extended menu:
2. "Heating" or "Heating/cooling"
3. If applicable, use / to select the required heating/
cooling circuit
Note
"Party mode" cannot be set for a separate cool-
ing circuit.
4. "Party mode"
5. Set the required room temperature for "Party
mode".
Party mode
Change with (
HC1
23°C
Fig. 15
Note
In conjunction with a ventilation unit:
Set the room temperature for ventilation max. 4 °C
lower than for "Party mode". This setting will
ensure that the bypass functions correctly.
Central heating/central cooling
Stopping central heating/central cooling
5817913
32
Display in the standard menu: For the preferred
heating/cooling circuit
Flow temperature 40°C
HC1
14°C 21°C
Flow temperature 40°C
HC1
14°C 21°C
Fig. 16
Note
The display of the set room temperature in the stand-
ard menu does not change.
Ending "Party mode"
"Party mode" ends automatically after 8 hours.
or
"Party mode" ends automatically if the time pro-
gram changes to the "Standard" or "Fixd value"
operating status.
or
Set "Party mode" to "OFF".
Saving energy during short periods of absence
To save energy, select "Economy mode" when you
leave home.
The room temperature for central heating will be
reduced, regardless of the "Time program".
In "Economy mode", cooling via a heating/cooling
circuit is switched OFF.
"Economy mode" cannot be set for a separate
cooling circuit.
Note
You can select "Economy mode" only in the "Heat-
ing and DHW" or "Htg" operating program.
Setting Economy mode for heating
1. Extended menu:
2. "Heating" or "Heating/cooling"
3. If applicable, use / to select the required heating/
cooling circuit
4. "Economy mode"
Central heating/central cooling
Temporarily adjusting the room temperature (cont.)
5817913
33
Display in the standard menu: For the preferred
heating circuit
HC1
14°C 21°C
Flow temperature 40°C
Fig. 17
Note
The display of the set room temperature in the stand-
ard menu does not change.
Ending "Economy mode"
"Economy mode" ends automatically if the time
program changes to the "Reduced" or "Standby"
operating status.
or
Set "Economy mode" to "OFF".
Saving energy during long periods of absence
To save energy during long periods of absence, select
"Holiday program".
The holiday program has the following effects:
Central heating:
For heating/cooling circuits in the "Heating and
DHW" or "Heating/cooling and DHW" operating
program:
The rooms are heated to the set reduced room
temperature ("Set red. room temp"): See
page 26.
For heating/cooling circuits in the "Only DHW"
operating program:
No central heating; frost protection for the heat
pump and buffer cylinder (if installed) is active.
Central cooling:
No cooling via a heating/cooling circuit; a separate
cooling circuit continues to be cooled.
DHW heating:
No DHW heating; frost protection for the DHW cylin-
der is active.
Mechanical ventilation (in conjunction with a venti-
lation unit):
Mechanical ventilation with minimum air flow rate
(
1
)
Note
The holiday program affects all heating/cooling cir-
cuits. Your contractor can change this factory setting.
Setting the Holiday program for central heating/central cooling, ventilation
1. Extended menu:
2. "Heating" or "Heating/cooling"
3. "Holiday program"
4. Set the required departure and return dates.
Central heating/central cooling
Saving energy during short periods of absence (cont.)
5817913
34
Holiday program
Select with (
HC1
Date Fr 15.06.2012
Return date:
Date
Leaving date:
We 13.06.2012
Fig. 18
The holiday program starts at 00:00 h on the day fol-
lowing your departure and ends at 00:00 h on the day
of your return. This means that on the days of depar-
ture and return the set time program is active: See
page 27.
Display in the standard menu
40°CFlow temperature
HC1
14°C 21°C
Holiday program
Fig. 19
Display in the extended menu
In the extended menu, you can call up the set holiday
program under "Information": See page 53.
Changing "Holiday program"
1. Extended menu:
2. "Heating" or "Heating/cooling"
3. "Holiday program"
4. "Change program"
5. Set the required departure and return dates.
Cancelling or deleting the "Holiday program"
1. Extended menu:
2. "Heating" or "Heating/cooling"
3. "Holiday program"
4. "Delete program"
Central heating/central cooling
Saving energy during long periods of absence (cont.)
5817913
35
Your DHW is always heated to this temperature when
a time phase with the operating status "Standard" is
active in the time program.
Setting the time program for DHW heating: See
page 35.
Factory setting: 50 °C
1. Extended menu:
2. "DHW"
3. "Set DHW temperature"
4. Set the required value.
Setting the higher DHW temperature
The DHW will be heated to the higher DHW tempera-
ture under the following circumstances:
In the time program for DHW heating, a time phase
for the "Temp. 2" operating status is enabled: See
page 36.
You have selected once-only DHW heating: See
page 37.
You have selected manual mode: See page 58.
Factory setting: 60 °C
1. Extended menu:
2. "DHW"
3. "Set DHW temperature 2"
4. Set the required value.
Note
Where necessary, enable the electric booster heater in
order to achieve the required DHW temperature: See
page 39.
Setting the operating program for DHW heating
In the for DHW heating operating program you set
whether DHW heating is enabled or not.
For an overview of the operating programs, see
page 21.
For the preferred heating/cooling circuit
1. Standard menu:
/ for the operating program:
e.g. "Only DHW"
2. OK to confirm
For all heating/cooling circuits
1. Extended menu:
2. "Heating" or "Heating/cooling"
3. If applicable, use / to select the required heating/
cooling circuit
4. "Operating program"
5. E.g. "Only DHW".
Setting the time program for DHW heating
In the time program for DHW heating, you set the time
phases in which your DHW is heated and to what tem-
peratures.
To do so, select an operating status for each time
phase: See chapter "Operating status for DHW heat-
ing".
Factory setting: one time phase from 00:00 to 24:00 h
for every day of the week with the "Top" operating sta-
tus
1. Extended menu:
2. "DHW"
3. "Time program DHW"
4. Set the required time phases and operating status.
To see how to set a time program: See page 23.
DHW heating
Setting the standard DHW temperature
5817913
36
Note
The DHW is not heated between the time phases.
Only frost protection for the DHW cylinder is active.
When setting time programs, bear in mind that your
heating system requires some time to heat the DHW
cylinder to the required temperature. Select a corre-
spondingly earlier start time. Use the "Start optimi-
sation" and "Stop optimisation" functions: See
pages 36 and 36.
Your rooms will not be heated whilst the DHW cylin-
der is being heated.
Operating status for DHW heating
The operating statuses for DHW heating differ as fol-
lows depending on the type of DHW cylinder you have
installed:
DHW cylinder with one temperature sensor at the
top
"Top"
The top section of the DHW cylinder is heated to the
"Set DHW temperature", e.g. when there is little
DHW demand: See page 35.
"Standard"
The top section of the DHW cylinder is heated to the
"Set DHW temperature": See page 35.
"Temp. 2"
The top section of the DHW cylinder is heated to the
"Set DHW temperature 2": See page 35.
DHW cylinder with two temperature sensors
Applies to the following versions:
DHW cylinder with temperature sensors at the top
and bottom
Heat pump with integral DHW cylinder
"Top"
The top section of the DHW cylinder is heated to the
"Set DHW temperature", e.g. when there is little
DHW demand: See page 35.
"Standard"
The entire volume of the DHW cylinder is heated to
the "Set DHW temperature": See page 35.
"Temp. 2"
The entire volume of the DHW cylinder is heated to
the "Set DHW temperature 2": See page 35.
Note
Your contractor will have listed the equipment and
functions of your heating system in the form on
page 102.
For questions relating to the scope of and accessories
for your heat pump and your heating system, contact
your contractor.
Setting start optimisation
Start optimisation ensures that DHW is available at the
set temperature at the beginning of a time phase in the
time program.
1. Extended menu:
2. "DHW"
3. "Start optimisation"
Example:
From 06:00 h, hot water for showering is required.
Set the start of the time phase in the time program to
06:00 h. With start optimisation, DHW heating starts
automatically earlier than this.
This makes DHW available at the set temperature at
06:00 h.
Setting stop optimisation
The stop optimisation ensures that the DHW cylinder is
always fully heated at the end of the time phase in
accordance with the time program.
1. Extended menu:
2. "DHW"
3. "Stop optimisation"
DHW heating
Setting the time program for DHW heating (cont.)
5817913
37
In the time program for the DHW circulation pump, you
set the time phases in which the circulation pump runs
constantly or at intervals.
To do so, select an operating status for each time
phase: See chapter "Operating status for the DHW cir-
culation pump".
No time phases are factory set for the DHW circulation
pump, i.e. the DHW circulation pump is switched off.
1. Extended menu:
2. "DHW"
3. "Time prog DHW circ"
4. Set the required time phases and operating status.
To see how to set a time program: See page 23.
Note
Between the time phases the DHW circulation pump
remains off.
Operating status for the DHW circulation pump
"5/25cycls"
The DHW circulation pump starts every 30 minutes
for 5 minutes (pause duration 10 minutes).
"5/10cycls"
The DHW circulation pump starts every 15 minutes
for 5 minutes (pause duration 10 minutes).
"ON"
The DHW circulation pump runs constantly.
Increasing DHW temperature temporarily
If there is an increased demand for domestic hot water,
you can temporarily increase the DHW temperature.
To do so, switch on "1x DHW heating".
DHW is heated to the higher DHW temperature ("Set
DHW temperature 2"): See page 35.
Starting 1x DHW heating
Note
One of the following operating programs must be set
for at least one heating/cooling circuit:
"Heating and DHW"
"Heating/cooling and DHW"
"Cooling and DHW"
"Only DHW"
1. Extended menu:
2. "DHW"
3. "1x DHW heating"
Note
This function terminates automatically as soon as "Set
DHW temperature 2" has been reached.
Stopping DHW heating
You do not want to heat DHW, nor heat or cool the rooms:
For this purpose, switch on "Standby mode".
For the preferred heating/cooling circuit
1. Standard menu:
/ for the "Standby mode" operating program
(frost protection)
2. OK to confirm
For all heating/cooling circuits
1. Extended menu:
2. "Heating" or "Heating/cooling"
3. If applicable, use / to select the required heating/
cooling circuit
4. "Operating program"
5. "Standby mode" (frost protection)
DHW heating
Setting a time program for the DHW circulation pump
5817913
38
You do not want to heat DHW, but do want to provide central heating:
For this purpose, set the standard DHW temperature
to its lowest value.
1. Extended menu:
2. "Heating" or "Heating/cooling"
3. If applicable, use / to select the required heating/
cooling circuit
4. "Operating program"
5. Depending on the selected heating/cooling circuit:
E.g. "Heating and DHW"
6. until the menu appears
7. "DHW"
8. "Set DHW temperature"
9. Set 10 °C.
DHW heating
Stopping DHW heating (cont.)
5817913
39
If there is a high heat demand for the central heating,
the instantaneous heating water heater is switched on
in addition to the heat pump.
Note
Since frequent use of an electric booster heater increa-
ses power consumption, you will have to enable this
booster heater for central heating.
Factory setting: Blocked
1. Extended menu:
2. "System"
3. "Electric heating"
Enabling or blocking the electric booster heater for DHW heating
If there is a high heat demand for DHW heating, the
instantaneous heating water heater is switched on in
addition to the heat pump.
Note
Since frequent use of an electric booster heater increa-
ses power consumption, you will have to enable this
booster heater for DHW heating.
Factory setting: Enabled
1. Extended menu:
2. "DHW"
3. "DHW with electr.heating"
Setting the time program for the electric booster heater
In the time program for the electric booster heater, set
the time phases in which this booster heater is allowed
to be switched on and at what output stage.
To do so, select an operating status for each time
phase: See chapter "Operating status for electric boos-
ter heater".
Factory setting: one time phase from 00:00 to 24:00 h
for every day of the week with the "Stage3" operating
status
1. Extended menu:
2. "System"
3. "Time prog elec heater"
4. Set the required time phases and operating status.
To see how to set a time program: See page 23.
Note
Outside the set time phases the electric booster heater
is blocked.
Operating status for the electric booster heater
"Stage1"
Only the lowest output stage may be started.
"Stage2"
The lowest and middle output stages may be started.
"Stage3"
All output stages may be started.
Heating system with electric booster heater
Enabling or blocking the electric booster heater for central heating
5817913
40
In active cooling mode, the heat pump is in operation.
The available cooling capacity is comparable to the
heating output of the heat pump.
Note
The cooling function must be set by your contractor.
Since frequent use of active cooling mode increases
power consumption, you will have to enable this
function.
System without buffer cylinder or with heating
water buffer cylinder
1. Extended menu:
2. "Heating/cooling"
3. If applicable, use / to select the required heating/
cooling circuit
4. "Active cooling mod."
System with heating water/coolant buffer cylinder
1. Extended menu:
2. "System"
3. "Active cooling mod."
Active cooling mode
Enabling and blocking active cooling mode
5817913
41
In the time program for quieter operation, set the time
phases in which the speed of the fan and, if required,
of the compressor are limited.
To do so, select an operating status for each time
phase: See chapter "Operating status for quieter oper-
ation".
Factory setting: no time phase from 00:00 to 24:00 h
for every day of the week. The fan speed is not limited.
1. Extended menu:
2. "System"
3. "Time prog. noise red."
4. Set the required time phases and operating status.
To see how to set a time program: See page 23.
Note
The fan speed is not limited between the set time
phases.
If the setting for noise reduced mode is blocked,
"Cannot be changed" is shown for 4 s. Your con-
tractor can lift this block. You can call up a time pro-
gram set by the contractor under "Information".
Operating status for quieter operation
"Stage1"
The max. fan speed and, if necessary, that of the
compressor, are reduced by a small amount.
"Stage2"
Air/water heat pumps with separate indoor/outdoor
units and 2-stage air/water heat pumps:
As per stage 1
All other air/water heat pumps:
The max. fan speed and, if necessary, that of the
compressor, are reduced by a significant amount.
"Stop"
The heat pump does not operate. Central heating
and DHW heating are provided by the auxiliary
heater, e.g. electric booster heater.
Note
Available auxiliary heaters must be enabled, e.g.
electric booster heater: See page 39.
If no booster heater is available, your rooms will not
be heated and DHW heating will not take place.
Air/water heat pumps
Setting the time program for quieter operation /
5817913
42
Your contractor commissions the ventilation unit.
To switch on mechanical ventilation, select the
"Standard operation" or "Ventilation program"
operating program: See page 43.
Note
In order to remove naturally occurring humidity from
rooms, the ventilation unit must always be operated
using at least the lowest ventilation level (
1
).
Display in the standard menu
40°CFlow temperature
HC1
14°C 21°C
3
3
Fig. 20 Example for ventilation in the operating pro-
gram "Ventilation program" operating sta-
tus "Standard"
Stopping ventilation
To switch off mechanical ventilation, select the
"Standby mode" operating program: See the follow-
ing chapter "Switching on standby mode".
!Please note
There is a risk of moisture damage to the build-
ing if the ventilation unit is permanently switched
off.
Only switch "Standby mode" on for short
periods of time.
Operate the ventilation unit at least at the mini-
mum ventilation level (
1
), e.g. in "Economy
mode" or "Holiday program".
Switching on Standby mode
1. Extended menu:
2. "Ventilation"
3. "Operating program"
4. "Standby mode"
No mechanical ventilation, for example if you wish to
air your home by opening the windows.
In conjunction with a ventilation heating circuit:
No supply air heating via heating circuit HC1
Display in the standard menu
40°CFlow temperature
HC1
14°C 21°C
0
0
Fig. 21
Mechanical ventilation
Starting ventilation
5817913
43
Ending "Standby mode"
Select a different operating program for ventilation, or
a comfort or energy saving function.
Stopping ventilation to change the filters
To change the filter, open the ventilation unit.
!Please note
Operating the open ventilation unit without filters
will lead to dust being deposited in the unit.
These dust deposits can result in malfunctions.
Switch off the ventilation unit before opening it,
as described below.
Vitovent 200-C, Vitovent 200-W, Vitovent 300-C
and Vitovent 300-W:
Pull the power supply plug of the ventilation unit from
its socket: See page 69 onwards.
Vitovent 300-F:
Turn off the ventilation unit at the ON/OFF switch:
See page 75.
Displays
After switching off the ventilation unit, the symbol
will be displayed on the heat pump control unit.
The message "EF Modbus subscriber" may
appear on the display. This message will disappear
once you restart the ventilation unit.
Setting the operating program for ventilation
In the operating program for ventilation you set
whether mechanical ventilation is enabled or not.
For an overview of the operating programs, see
page 22.
1. Extended menu:
2. "Ventilation"
3. "Operating program"
4. E.g. "Ventilation program"
Ventilation without heat recovery
For ventilation without heat recovery, the bypass on
the ventilation unit is active. Fresh outdoor air is sup-
plied directly to the home without passing through the
heat exchanger.
This allows your home to be passively heated or
cooled by the supply air, depending on the tempera-
tures inside and outside the building.
Conditions for switching on passive heating and pas-
sive cooling: See page 95.
Setting the room temperature for ventilation
As soon as the room temperature exceeds the set
value specified here, ventilation without heat recovery
can take place.
Mechanical ventilation
Stopping ventilation (cont.)
5817913
44
Note
To ensure the bypass works correctly, set the room
temperature for ventilation as follows:
Vitovent 200-C:
Set the value approx. 2 °C higher than the standard
temperature for central heating/central cooling and
"Party mode".
All other ventilation units:
Set the value no more than 4 °C higher or lower
than the standard temperature for central heating/
central cooling and "Party mode".
We recommend setting the value to at least 1 °C
higher.
Standard room temperature for central heating/central
cooling and "Party mode": See pages 26 and 31.
1. Extended menu:
2. "Ventilation"
3. "Set room temperature"
4. Set the required value.
Note
This menu is not available if your heating circuit HC1 is
a ventilation heating circuit.
Setting the minimum temperature for ventilation
Applies to Vitovent 200-C and Vitovent 300-F only.
Factory setting: 16 °C
As soon as the outdoor air temperature at the inlet to
the ventilation unit exceeds the minimum temperature
set here, ventilation without heat recovery can take
place.
Note
The lower the setting for this temperature, the higher
the risk of condensate build-up on the outside of the
ductwork. This condensate build-up can cause dam-
age to the building.
1. Extended menu:
2. "Ventilation"
3. "Min supply air t. byp"
4. Set the required value.
Setting a time program for ventilation
In the time program for ventilation you set the time
phrases during which your home is ventilated and at
what air flow rate.
To do so, select an operating status for each time
phase: See chapter "Operating status for ventilation".
Factory setting: one time phase from 00:00 to 24:00 h
for every day of the week with the "Standard" operat-
ing status
Note
We recommend maintaining the factory setting, par-
ticularly if your heating circuit HC1 is a ventilation
heating circuit.
The time program for ventilation is only active in the
"Ventilation program" operating program.
1. Extended menu:
2. "Ventilation"
3. "Time prog ventilation"
4. Set the required time phases and operating status.
To see how to set a time program: See page 23.
Note
Between the set time phases, mechanical ventilation
takes place with the minimum air flow rate (
1
).
Operating status for ventilation
"Reduced" (
2
)
Reduced air flow rate:
Approx. 70 % of the standard flow rate: see "Stand-
ard".
"Standard" (
3
)
Standard air flow rate
"Intensive" (
4
)
Maximum air flow rate:
Approx. 125 % of the standard flow rate: see
"Standard".
Mechanical ventilation
Ventilation without heat recovery (cont.)
5817913
45
Note
The air flow rates for "Reduced", "Standard" and
"Intensive" mode are set by your contractor.
To ensure consistently good air quality, the air flow
rates can be automatically increased or decreased
during operation in the "Reduced" or "Standard"
operating statuses:
If a CO2/humidity sensor (accessories) is installed
in one of your rooms, the air flow rate is adjusted
subject to the humidity and/or carbon dioxide con-
centration (CO2) of this room.
If a humidity sensor (accessories) is installed in the
central extract air duct, the air flow rate is adjusted
subject to the humidity of the air extracted from all
rooms.
Increasing the ventilation level temporarily
If you wish to increase the ventilation level temporarily,
select "Intensive operation".
Mechanical ventilation then runs at the maximum air
flow rate (ventilation level
4
).
"Intensive operation" is independent of the time pro-
gram for ventilation.
Setting "Intensive operation" for ventilation
1. Extended menu:
2. "Ventilation"
3. "Intensive operation"
Mechanical ventilation with maximum air flow rate
(
4
)
Display in the standard menu
40°CFlow temperature
HC1
14°C 21°C
4
4
Fig. 22
Ending "Intensive operation"
You have switched on "Intensive operation" at the
heat pump control unit:
"Intensive operation" ends automatically after
2 hours. Your contractor can adjust this duration.
or
Set "Intensive operation" to "OFF".
You have switched on "Intensive operation" using an
external switch/button (bathroom switch):
"Intensive operation" ends automatically after
30 minutes. Your contractor can adjust this duration.
or
Set "Standby mode" for ventilation: See chapter
"Switching on standby mode".
Note
If "Intensive operation" ends automatically, operation
continues in the operating program that was active
before "Intensive operation" began.
Mechanical ventilation
Setting a time program for ventilation (cont.)
5817913
46
To save energy, select "Economy mode" when you
leave home.
Mechanical ventilation then runs at the minimum air
flow rate (ventilation level
1
).
"Economy mode" is independent of the time pro-
gram for ventilation.
Switching on Economy mode for ventilation
1. Extended menu:
2. "Ventilation"
3. "Economy mode"
Display in the standard menu
40°CFlow temperature
HC1
14°C 21°C
1
1
Fig. 23
Ending "Economy mode"
"Economy mode" ends automatically if mechanical
ventilation with the minimum air flow rate (
1
) is
started in the time program, i.e. between the set time
phases.
or
Set "Economy mode" to "OFF".
Saving energy during long periods of absence
To save energy during long periods of absence, select
"Holiday program".
Note
The holiday program applies to both mechanical venti-
lation and central heating/central cooling in all heating/
cooling circuits: See page 33.
Your contractor can change this factory setting.
The holiday program has the following effects:
Mechanical ventilation then runs at the minimum air
flow rate (ventilation level
1
)
Central heating/central cooling and DHW heating:
See page 33.
Setting "Holiday program" for ventilation, central heating/central cooling
1. Extended menu:
2. "Ventilation"
3. "Holiday program"
Mechanical ventilation
Saving energy during short periods of absence
5817913
47
4. Set the required departure and return dates.
Holiday program
Select with (
Friday 03.02.2012
Return date:
Thursday
Leaving date:
02.02.2012
Fig. 24
The holiday program starts at 00:00 h on the day fol-
lowing your departure and ends at 00:00 h on the day
of your return. This means that on the departure and
return dates, the time program specified for those days
is active: See page 44.
Display in the standard menu
40°CFlow temperature
HC1
14°C 21°C
Holiday program
1
1
Fig. 25
Display in the extended menu
In the extended menu, you can call up the set holiday
program under "Information": See page 53.
Changing "Holiday program"
1. Extended menu:
2. "Ventilation"
3. "Holiday program"
4. "Change program"
5. Set the required departure and return dates.
Cancelling or deleting the "Holiday program"
1. Extended menu:
2. "Ventilation"
3. "Holiday program"
4. "Delete program"
Mechanical ventilation
Saving energy during long periods of absence (cont.)
5817913
48
You can use the power from your photovoltaic system
(power generated on site) to operate the heat pump.
For this, you enable one or more functions.
To utilise power generated on site, select the appropri-
ate operating program for central heating, central cool-
ing or DHW heating, e.g. "Heating and DHW": See
page 20.
To increase the utilisation of power generated on site,
you can raise the set temperature for the following
functions or lower it for cooling:
Function Set temperature
Increase Setback
Standard DHW temperature
"DHW cylinder
heating"
"Set DHW cyl.
increase"
Higher DHW temperature
"Set DHW tem-
perature 2"
Buffer cylinder heating
"Heating htg
water buff cyl"
"Set htg water
buffer in-
crease"
Central heating
"Raise room
temperature"
"Set room
temp. in-
crease"
Central cooling
"Room temper-
ature cooling"
"Set room temp.
reduction"
Cooling the heating water/coolant buffer cylinder
"Coolant buffer
cyl cooling"
"Set cooling
water buffer
red"
1. Extended menu:
2. "PV ctrl strategy"
3. Select the required function, e.g. "DHW cylinder
heating"
4. Set the required temperature increase or tempera-
ture reduction. E.g. 10 Kelvin (10 K) for "Set DHW
cyl. increase" to increase the set temperature for
the standard DHW temperature from 50 °C to
60 °C.
Set DHW cyl. increase
Change with
10.0 K
+
Fig. 26
5. If required, repeat steps 3 and 4 for further func-
tions.
Note
If you enable several functions for the utilisation of
power generated on site, the functions for DHW
heating will have priority over the functions for cen-
tral heating/central cooling.
Activating "Set DHW temperature 2" is only appro-
priate if you have not set a time phase for the
"Temp. 2" operating status in the time program for
DHW heating: See page 35.
If you still have the "Temp. 2" operating status set in
the time program, your DHW cylinder may be heated
with electricity from the grid in these time phases.
In parallel to the utilisation of power generated on
site, a percentage of power can be drawn from the
grid for operating the heat pump. Your contractor can
enable this function.
Only for air/water heat pumps with output control:
To raise and lower the set temperatures, your con-
tractor can implement a setting that will automatically
match the compressor output to the amount of power
generated by the photovoltaic system. This optimises
the utilisation of power generated on site.
Utilisation of power generated on site and utilisa-
tion of excess power from the grid (Smart Grid) are
both enabled
If the utilisation of power generated on site and Smart
Grid are enabled and active simultaneously, the func-
tion with the largest temperature increase or reduction
is used: See page 49.
Power from a photovoltaic system
Utilising power from a photovoltaic system (power generated on site)
5817913
49
If your contractor has connected and selected Smart
Grid, operation of the heat pump will be matched to the
available amount of power in the grid (grid utilisation).
Not a lot of power in the grid (grid overload)
Your power supply utility can block your heat pump.
During this power-OFF period, central heating is provi-
ded by the buffer cylinder. If no buffer cylinder is instal-
led or its temperature is too low, the rooms are heated
using the available auxiliary heaters, e.g. oil boiler,
electric booster heater.
DHW can only be heated during the power-OFF period
using the auxiliary heaters.
Large amount of excess power (power is free)
Your power supply utility switches your heat pump on
directly.
DHW, the buffer cylinder and the heating circuits are
automatically heated to the max. possible tempera-
tures.
Small amount of excess power (power is cheap)
The heat pump runs in standard operation with modi-
fied set temperatures.
You can increase these set temperatures for the fol-
lowing functions or reduce them for cooling:
Function Set temperature
Increase Setback
DHW heating
"DHW cylinder
heating"
"Set DHW cyl.
increase"
Heating the heating water buffer cylinder
"Heating htg
water buff cyl"
"Set htg water
buffer in-
crease"
Central heating
"Raise room
temperature"
"Set room
temp. in-
crease"
Central cooling
"Room temper-
ature cooling"
"Set room temp.
reduction"
1. Extended menu:
2. "Smart Grid"
3. Select the required function, e.g. "DHW cylinder
heating"
4. Set the required temperature increase or tempera-
ture reduction. E.g. 10 Kelvin (10 K) for "Set DHW
cyl. increase" to increase the set temperature for
the standard DHW temperature from 50 °C to
60 °C.
Set DHW cyl. increase
Change with
10.0 K
+
Fig. 27
5. If required, repeat steps 3 to 4 for further functions.
Note
If you enable several functions for the utilisation of
excess power, the functions for DHW heating will have
priority over the functions for central heating.
Utilisation of power generated on site and utilisa-
tion of excess power from the grid (Smart Grid) are
both enabled
If the utilisation of power generated on site and Smart
Grid are enabled and active simultaneously, the func-
tion with the largest temperature increase or reduction
is used: See page 48.
Smart Grid
Utilising excess power
5817913
50
You can make the menu texts easier to read. To do so,
adjust the contrast of the display to suit the lighting
conditions in the room.
1. Extended menu:
2. "Settings"
3. "Contrast"
4. Set the required contrast.
Setting the display brightness
You would like to be able to read the text in the menu
better. Change the brightness level of the "Control"
display.
You can also alter the "Screen saver" brightness.
1. Extended menu:
2. "Settings"
3. "Brightness"
4. "Control" or "Screen saver"
5. Set the required brightness.
Setting names for heating/cooling circuits
You can designate all heating/cooling circuits individu-
ally. The abbreviations "HC1", "HC2", "HC3" and
"SKK" are retained.
1. Extended menu:
2. "Settings"
3. "Name for heating circuit"
4. "Heating circuit 1", "Heating circuit 2", "Heat-
ing circuit 3" or "Cooling circuit SKK"
5. "Change?"
6. You can select the required character with / .
7. / takes you to the next character.
8. Press OK to accept all entered characters at once
and simultaneously exit this menu.
Note
You can delete the name entered with "Reset?".
Example:
Name for "Heating circuit 2": Apartment
Heating circuit 2 HC2
Change with (
Heating circuit 1
f
g
d
c
e
Fig. 28
Heating circuit 2
Adopted
Apartment
HC2
Fig. 29
Further adjustments
Setting the display contrast
5817913
51
The menu shows "Apartment" for "Heating circuit 2".
Apartment
Set reduced room temp
Select with (
Set room temperature
Economy mode
Party mode
ß
22°C
ÙÚ
HC2
Fig. 30
Setting the preferred heating/cooling circuit for the standard menu
If your system has more than one heating/cooling cir-
cuit, any operation on the standard menu always
relates to the preferred heating/cooling circuit.
Select the preferred heating/cooling circuit from this
menu.
1. Extended menu:
2. "Settings"
3. "Standard menu"
4. Select the heating/cooling circuit:
"Heating circuit 1"
"HC1" is displayed
"Heating circuit 2"
"HC2" is displayed
"Heating circuit 3"
"HC3" is displayed
"Cooling circuit SKK" (for the separate cooling
circuit)
"SKK" is displayed
Setting the time and date
The time and date are factory-set. If your heating sys-
tem has been shut down for a prolonged period, you
may need to reset the time and date.
1. Extended menu:
2. "Settings"
3. "Time/Date"
4. Set the time and date.
Setting menu language
1. Extended menu:
2. "Settings"
3. "Language"
4. Select the required language.
Setting the temperature unit (°C/°F)
Factory setting: °C 1. Extended menu:
Further adjustments
Setting names for heating/cooling circuits (cont.)
5817913
52
2. "Settings"
3. "Temperature unit"
4. Select the temperature unit "°C" or "°F".
Restoring factory settings
You can restore the factory settings of all modified val-
ues for every heating/cooling circuit, DHW heating and
other system settings separately.
1. Extended menu:
2. "Settings"
3. "Standard setting"
4. Select the required system setting, e.g. "DHW".
System setting Settings and values that are reset
"System" Time program for central heating with buffer cylinder
Time program for central cooling with buffer cylinder
Electric booster heater is blocked for central heating.
Time program for electric booster heater
Time program for reduced noise operation
"DHW" Standard DHW temperature
Higher DHW temperature
Time program for DHW heating
Time program for DHW circulation pump
Electric booster heater is enabled for DHW heating.
Start and stop optimisation are switched off.
"Electr booster heater" Electric booster heater is blocked for central heating.
Time program for electric booster heater
"Heating circuit 1"
"Heating circuit 2"
"Heating circuit 3"
Standard room temperature
Reduced room temperature
Time program for central heating
Heating curve slope and level
Comfort and energy saving functions ("Party mode", "Economy
mode" and "Holiday program") are stopped.
Note
If names have been given to the heating/cooling circuits, these are re-
tained: see chapter "Setting names for heating/cooling circuits".
"Cooling" Standard room temperature
Cooling curve slope and level
Active cooling mode is blocked.
"Ventilation" Time program for ventilation
Comfort and energy saving functions ("Intensive operation", "Econ-
omy mode" and "Holiday program") are stopped.
"Photovoltaics" Utilisation of power generated on site is switched off for all compo-
nents.
"Smart Grid" No function is enabled for utilising excess power.
Further adjustments
Setting the temperature unit (°C/°F) (cont.)
5817913
53
You can call up current temperatures, set values, time
programs and operating states.
In the extended menu, information is split into groups:
"System"
"Heating circuit 1"
"Heating circuit 2"
"Heating circuit 3"
"Cooling circuit SKK"
"DHW"
"Ventilation"
"Solar"
"Heat pump"
"Energy statement": See page 53.
"Daily log": See page 54.
Detailed call-up options for the individual groups can
be found in chapter "Overview of extended menu" on
page 81.
Note
If names have been given to the heating/cooling cir-
cuits, these are shown: see chapter "Setting names for
heating/cooling circuits".
1. Extended menu:
2. "Information"
3. Select the group.
4. Select the information you wish to call up.
Checking the solar energy yield
You see an overview showing how much heat your
solar thermal system has fed into your heating system
in the last 7 days.
1. Extended menu:
2. "Solar energy"
3. To show the heat amount for a certain day, select
the day using / (shown in kWh).
Solar energy
Select with
(
kWh 1.3Th 03/05/12
4.0
We
0
Th Fr Sa Su Mo Tu We
Fig. 31 The flashing line on the graph indicates that
the current day is not yet over.
Calling up energy statement
Your contractor can enable the display of energy state-
ments if required. The display is not possible with all
heat pumps.
Every energy statement shows a bar chart depicting
the energy amounts for the last 52 weeks.
1. Extended menu:
2. "Information"
3. "Energy statement"
4. Select the required energy statement, e.g. "PV
energy statemt"
5. To show the energy amounts for a certain week,
select the week using / (shown in kWh).
Select with
PV energy statemt
Wk. 08/15 q 7.0 kWh 3.8 kWh
q
08
Fig. 32
Calling up information
Calling up information
5817913
54
The following energy statements can be called up:
Energy statement Meaning of symbols in the chart
"Energy statemnt heating" ("Energy
statement htg 1", "Energy statement htg
2" with a 2-stage heat pump)
Electrical energy used for operating the heat pump in heat-
ing mode.
Heating energy transferred into the heating system
"Energy statement DHW" ("Energy state-
ment DHW 1", "Energy statement DHW
2" with a 2-stage heat pump)
Electrical energy used for operating the heat pump for
DHW heating.
Heating energy transferred for DHW heating
"Energy statem. cooling" ("Energy
statem. cooling 1", "Energy statem. cool-
ing 2" with a 2-stage heat pump)
Electrical energy used for operating the heat pump in cool-
ing mode.
Heating energy drawn from the heating system for cooling
"PV energy statemt" Electrical energy generated by the PV system used for op-
erating the heat pump (utilisation of power generated on
site).
Total power generated by the PV system
Note
Some heat pumps only show part of the curve, e.g.
with "Energy statemnt heating", only the heating
energy transferred is shown, but not the electrical
energy used.
Daily log
The daily log lists the following information for each
calendar week ("CW") in tabular form:
Column Meaning
"T.in" Minimum air or brine temperature on enter-
ing the heat pump
"T.out" Average air or brine temperature on exiting
the heat pump
"HP1" Hours run, heat pump stage 1
"HP2" Hours run, heat pump stage 2
"AC" Brine/water heat pumps :
Hours run in "active cooling" mode
Air/water heat pumps / :
Total hours run in "active cooling" mode
plus hours run for defrosting the evapora-
tor.
"NC" Hours run with the "natural cooling" function
Note
This information is retained permanently, even if the
heat pump control unit is faulty.
Daily log
Select with (
CW T.in T.out HP1 HP2 AC NC
12
13
15
16
17
18
7.2
7.8
7.0
6.9
6.8
7.2
4.3
4.7
3.3
3.1
3.0
4.4
14 7.5 4.5
123
113
89
103
97
93
133
37
21
28
15
10
9
45
0
0
2
4
0
0
0
15
12
12
18
11
10
5
Fig. 33
1. Extended menu:
2. "Information"
3. "Daily log"
Screed drying
For screed drying, e.g. in a new building, your contrac-
tor can activate the "Screed drying" function. The
screed will be dried in line with a set time program suit-
able for the building material (temperature:time profile).
Calling up information
Calling up information (cont.)
5817913
55
Central heating for all heating/cooling circuits takes
place according to a set time program. Your settings
for central heating/central cooling have no effect for
the duration of screed drying.
DHW heating is active.
In conjunction with a ventilation unit:
The maximum air flow rate is set for mechanical ven-
tilation (
4
).
Display in the standard menu
40°CFlow temperature
HC1
14°C 21°C
Screed drying
D
Fig. 34
DUpper information bar
Calling up screed drying for all heating/cooling cir-
cuits
1. Extended menu:
2. "Information"
3. "Heating circuit 1", "Heating circuit 2", "Heat-
ing circuit 3" or "Cooling circuit SKK"
4. "Operating program"
Heating circuit 1
Back with
Operating program:
Screed drying
Operating status:
Fixd value
HC1
Fig. 35
Remaining screed drying time
Screed drying lasts up to 32 days. The value displayed
for "Screed drying days" is the number of days
remaining.
1. Extended menu:
2. "Information"
3. "System"
System
Select with (
Central fault
Time
Date
Screed drying days 18
We 19.01.2012
14:30 o'clock
OFF
Fig. 36
Calling up information
Calling up information (cont.)
5817913
56
In the case of special events or operating states in
connection with your heat pump or heating system, the
heat pump control unit displays notes, warnings or
fault messages.
Alongside the plain text message, the associated sym-
bol flashes on the display.
"Note"
"Warning"
"Fault"
In addition, the fault indicator (red) flashes on the
heat pump control unit. An alarm for issuing fault
messages (e.g. a buzzer), if installed, is switched
on.
Example of a fault:
OK
Fault
Select with
Fig. 37
1. Pressing OK provides you with additional informa-
tion regarding the displayed message.
Note
Acknowledge with OK
Outside temp. sensor 18
Power-OFF C5
Fig. 38
2. You can scroll through the list of messages. The
header of each message shows whether it is a
note, warning or fault message.
Pressing ? provides you with the following informa-
tion regarding the selected message:
Date and time when the message occurred for
the first time.
Information about the characteristics of the heat
pump and heating system
Tips on steps you can take yourself before noti-
fying your contractor.
3. In the case of warning or fault messages ( , )
note the message text and the adjacent message
code. In the example: "Fault", "Outside temp.
sensor 18".
This enables the contractor to be better prepared
and may save you unnecessary travelling costs.
It is not necessary to notify your contractor about
information messages ( ). In the example:
"Note", "Power-OFF C5": See page 64.
4. Acknowledge all messages. For this, follow the
instructions in the menu.
The message will be adopted into the "Fault",
"Warning" or "Note" menu.
Display in the standard menu
Flow temperature 40°C
HC1
14°C 21°C
Fig. 39
Calling up information
Calling up messages
5817913
57
Display in the extended menu
Menu
Solar energy
Continue with
DHW
Heating
Fault
OK
ã
Fig. 40
Note
If you have connected an alarm to alert you to fault
messages (e.g. a buzzer), this is deactivated when
the fault message is acknowledged.
If the fault cannot be rectified until later, the fault
message will reappear at 7:00 h the following day.
The alarm is switched on again (if installed).
If you acknowledge fault message "Heat pump A9",
both heating and DHW heating are provided entirely
by the available auxiliary heaters, e.g. instantaneous
heating water heater (if installed and enabled). As
this may be associated with high electricity costs, we
recommend having the heat pump checked by your
contractor immediately.
Calling up acknowledged messages
1. Extended menu:
2. "Fault", "Warning" or "Note"
Calling up information
Calling up messages (cont.)
5817913
58
In manual mode, central heating and DHW heating
operate independently of the time programs:
Uncontrolled heating with a set flow temperature of
45 °C
DHW heating with "Set DHW temperature 2": See
page 35.
No central cooling
The buffer cylinder will be heated to the "Fixd
value" temperature.
Ventilation operates in the "Standard" operating sta-
tus.
Note
Use manual mode only after consulting your contrac-
tor.
1. Extended menu:
2. "Manual mode"
Manual mode
Terminate with OK
Fig. 41
Note
Key returns you to the extended menu. You can
call up any information and adjust all settings. These
settings become active after manual mode ends.
Manual mode
Manual mode
5817913
59
The displays in the standard menu and the extended
menu differ depending on the system version.
At both control levels, only those functions that are rel-
evant for your system version are available to you.
Standard menu for the DHW system version
DHW
Flow temperature 40°C
45°C
Fig. 42
Standard menu with "External control"
External control
Flow temperature 40°C
Fig. 43
Special system versions
Special system versions
5817913
60
The heat pump control unit may look different depend-
ing on the type of heat pump.
Control unit at the front of the heat pump
14°C 21°C
CBA
Fig. 44
AFault indicator (red)
BON indicator (green)
CON/OFF switch
At the top of the heat pump
AB C
Fig. 45
AFault indicator (red)
BON indicator (green)
CON/OFF switch
Control unit in a separate enclosure on the wall
14°C 21°C
B
C
A
Fig. 46
AFault indicator (red)
BON indicator (green)
CON/OFF switch
Switching on and off
Heat pump control unit controls
5817913
61
With frost protection monitoring
For every heating/cooling circuit, select the operating
program "Standby mode".
For the preferred heating/cooling circuit
1. Standard menu:
/ for the operating program "Standby mode"
(frost protection)
2. OK to confirm
For all heating/cooling circuits
1. Extended menu:
2. "Heating" or "Heating/cooling"
3. If applicable, use / to select the required heating/
cooling circuit
4. "Operating program"
5. "Standby mode" (frost protection)
The circulation pumps are briefly started every
24 hours to prevent them from seizing up.
If a ventilation unit is connected to your heat pump
control unit, the ventilation unit continues to run in
the selected operating program (e.g. "Ventilation
program").
Note
In the following cases, frost protection is only guaran-
teed with a booster heater (on site):
Air/water heat pumps:
At temperatures below 15 °C
When there is a heat pump fault
Auxiliary heaters may include instantaneous heating
water heaters (electric booster heaters) or oil/gas boil-
ers (fossil fuel booster heaters).
Without frost protection monitoring (shutting down the system)
1. Switch the ON/OFF switch OFF.
2. Isolate the system from the power supply, e.g. at a
separate MCB/fuse or a mains isolator.
!Please note
If outside temperatures below 3 °C are
expected, take appropriate measures to pro-
tect the heat pump and the heating system
from frost.
If necessary, contact your contractor.
Note
If a ventilation unit is connected to your heat pump
control unit, this ventilation unit runs with the minimum
air flow rate (
1
).
Information on shutting down for longer periods
Circulation pumps may seize up when they are not
supplied with power.
It may be necessary to reset the date and time: see
chapter "Setting the time and date".
Starting the heat pump
1. Switch ON the power supply, e.g. at a separate
MCB/fuse or a mains isolator.
2. Switch ON/OFF switch ON.
After a short time, the standard menu is displayed:
See page 17.
The green ON indicator illuminates. Your heat
pump and remote control units (if available) are
now ready for operation.
Switching on and off
Shutting down the heat pump
5817913
62
Cause Remedy
The heat pump is off. Turn on the ON/OFF switch: See diagrams on
page 60 onwards.
Switch ON the mains isolator (if installed, outside the
boiler room).
Set the MCB in the power distribution board (main do-
mestic MCB).
Settings made at the heat pump control unit have been
changed or are incorrect.
Central heating/central cooling must be enabled.
Check the following settings and correct if required:
Operating program: See page 26.
Room temperature: See page 26.
Time: See page 51.
Time program for central heating/central cooling: See
page 27.
Central heating time program for buffer cylinder: See
page 28.
Heating curve/cooling curve: See page 29.
If necessary, select central heating for the buffer cylin-
der: See page 27.
If necessary, enable the electric booster heater for
central heating (if installed): See page 39.
The DHW cylinder is being heated. Wait until the DHW cylinder has been heated up.
Reduce the DHW draw-off rate or temporarily reduce
the standard DHW temperature as required.
"Note", "Warning" or "Fault" is shown. Check what type of message it is. Acknowledge the
message: See page 56.
If necessary, notify your contractor.
"Screed drying" is selected. No action required
As soon as the period for screed drying has expired,
the heat pump continues in the selected operating
program: See page 26.
In conjunction with a ventilation unit:
Bypass does not close.
Preheating coil faulty
Supply air/extract air fan faulty
Notify your contractor.
What to do if...
Rooms are too cold
5817913
63
Cause Remedy
Settings made at the heat pump control unit have been
changed or are incorrect.
Central heating/central cooling must be enabled.
Check the following settings and correct if required:
Operating program: See page 26.
Room temperature: See page 26.
Time: See page 51.
Time program for central heating/central cooling: See
page 27.
Central cooling time program for buffer cylinder: See
page 29.
Heating curve/cooling curve: See page 29.
If necessary, select central cooling for the buffer cylin-
der: See page 27.
Enable "Active cooling mode" if required: See
page 40.
"Note", "Warning" or "Fault" is shown. Check what type of message it is. Acknowledge the
message: See page 56.
If necessary, notify your contractor.
In conjunction with a ventilation unit:
The bypass does not open.
Check the following settings and correct if required:
Room temperature for ventilation "Set room temper-
ature": See page 26.
Minimum temperature for ventilation "Min supply air
t. byp": See page 44.
If necessary, notify your contractor.
There is no hot water
Cause Remedy
The heat pump is off. Turn on the ON/OFF switch: See diagrams on
page 60 onwards.
Switch ON the mains isolator (if installed, outside the
boiler room).
Set the MCB in the power distribution board (main do-
mestic MCB).
Settings made at the heat pump control unit have been
changed or are incorrect.
DHW heating must be enabled.
Check the following settings and correct if required:
Operating program: See page 26.
DHW temperature: See page 35.
Time program DHW heating: See page 35.
Time: See page 51.
If necessary, enable the electric booster heater for
DHW heating (if installed): See page 39.
"Note", "Warning" or "Fault" is shown. Check what type of message it is. Acknowledge the
message: See page 56.
If necessary, notify your contractor.
The DHW is too hot
Cause Remedy
Settings made at the heat pump control unit have been
changed or are incorrect.
Check and if necessary correct the standard DHW tem-
perature: See page 35.
What to do if...
Rooms are too hot
5817913
64
Cause Remedy
Reference to a particular event or operating state of the
heat pump, heating system or connected ventilation
unit
Proceed as described on page 56.
" " is flashing and "Warning" is displayed
Cause Remedy
Warning due to a particular event or operating state of
the heat pump, heating system or connected ventilation
unit
Proceed as described on page 56.
" " is flashing and "Fault" is displayed
Cause Remedy
Fault at the heat pump, heating system or connected
ventilation unit
Proceed as described on page 56.
"Power-OFF C5" is displayed
Cause Remedy
This message is displayed whilst the power supply is
blocked by the power supply utility.
No action required
The heat pump restarts automatically with the selec-
ted operating program as soon as the power supply
utility restores the power supply.
"External hook-up" is displayed
Cause Remedy
The operating program set at the heat pump control
unit has been switched over by an external device, e.g.
EA1 extension.
No action required
"External program" is displayed
Cause Remedy
The Vitocom communication interface has changed the
operating program set at the heat pump control unit.
You can change the operating program.
"Controls locked out" is displayed
Cause Remedy
Control of the heat pump is blocked. Your contractor can lift this block.
What to do if...
" " is flashing and "Note" is displayed
5817913
65
Cause Remedy
The filters in your ventilation unit and/or in your ex-
tract air vents are severely contaminated.
The time interval for changing the filters has expired.
Clean or replace the filters: See page 67 onwards.
Doors/windows can only be opened with difficulty
Cause Remedy
In highly airtight buildings, e.g. a passive house:
The air flow rates for supply and extract air in your ven-
tilation unit are out of balance.
Notify your contractor.
Doors/windows bang when opened
Cause Remedy
In highly airtight buildings, e.g. a passive house:
The air flow rates for supply and extract air in your ven-
tilation unit are out of balance.
Notify your contractor.
What to do if...
"A0 Vent.: check filter(s)" is displayed
5817913
66
Brine/water or water/water heat pumps
You can clean the appliance surfaces with a commer-
cially available domestic cleaning agent. Never use
scouring agents.
Air/water heat pumps
!Please note
Commercially available domestic cleaning
agents and special cleaning agents for the heat
exchanger (evaporator) can damage the heat
pump.
Clean the appliance surfaces only with a damp
cloth.
If necessary, clean the heat exchanger fins
(evaporator) only with a dustpan brush with
long bristles.
Air/water heat pumps with a plastic surface
!Please note
Commercially available cleaning agents can
damage the surface of the external casing.
Use only mild water-based domestic cleaning
agents.
Do not use substances containing acids or
solvents, such as vinegar-based cleaners,
nitro or synthetic resin solutions, nail varnish
remover, ethyl alcohol, etc.
!Please note
Mechanical influence will scratch the surface of
the external casing.
Only wipe the surface with a soft damp cloth.
Do not use substances that contain abrasive
particles such as polishes, scouring agents,
dirt erasers or scouring pads.
Do not clean the external casing with a pres-
sure washer.
Programming unit of the heat pump control unit
Clean the surface of the programming unit with the
microfibre cloth provided.
Heating system inspection and maintenance
The inspection and maintenance of a heating system
is prescribed by the Energy Saving Ordinance [EnEV -
Germany] and the DIN 4755, DIN 1988-8 and EN 806
standards.
Regular maintenance ensures trouble-free, energy effi-
cient and environmentally responsible heating and
cooling operation. For this, it is best to arrange an
inspection and maintenance contract with your local
contractor.
DHW cylinder (if installed)
Standards DIN 1988-8 and EN 806 specify that main-
tenance and cleaning should be carried out no later
than 2 years after commissioning and as required
thereafter.
Only a qualified heating contractor should clean the
inside of a DHW cylinder and the DHW connections.
If any water treatment equipment (e.g. a sluice or
injection system) is installed in the cold water supply of
the DHW cylinder, ensure this is refilled in good time.
In this connection, observe the manufacturer's instruc-
tions.
In addition for Vitocell 100:
We recommend that the correct function of the sacrifi-
cial anode is checked annually by your heating con-
tractor.
Maintenance
Cleaning the heating system
5817913
67
The function of the sacrificial anode can be checked
without interrupting the system operation. The heating
contractor will check the earth current with an anode
tester.
Safety valve (DHW cylinder)
The function of the safety valve must be checked
every six months by the user or a contractor through
venting (see valve manufacturer's instructions). The
valve seat may become contaminated.
Water may drip from the safety valve during a heat-up
process. The outlet is open to the atmosphere.
!Please note
Overpressure can cause damage.
Do not close the safety valve.
Potable water filter (if installed)
To maintain high hygienic standards, proceed as fol-
lows:
Replace filter element on non-back flushing filters
every six months (visual inspection every
two months).
On back flushing filters, back flush every
two months.
Damaged cables / lines
If there is damage to the connecting cables or lines of
the appliance or externally installed accessories, these
must be replaced with special cables or lines. Only use
Viessmann cables / lines as replacement. For this,
notify your qualified contractor.
Cleaning the mechanical ventilation system
The casing of the ventilation unit can be cleaned with
a commercially available domestic cleaning agent.
Do not use scouring agents.
Clean or replace the outdoor air and extract air filters
in the ventilation unit as well as the filters in the
extract air vents regularly. Replace the filters at least
once a year.
!Please note
Dust deposits in the appliance can result in
malfunctions
Never start the appliance without outdoor air
and extract air filters.
We recommend that the ventilation unit and the duct-
work are serviced and, if necessary, cleaned at least
annually by your contractor.
We recommend entering into a maintenance contract
with your contractor.
Failure to carry out maintenance represents a risk
factor. Regular cleaning and maintenance ensure
that the operation remains hygienic, environmentally
sound and energy efficient.
Cleaning the supply air/extract air vents
Light contamination
Wipe the outside of the supply/extract air vents with a
damp cloth.
Maintenance
Heating system inspection and maintenance (cont.)
5817913
68
Heavy contamination
!Please note
Dust will settle inside the ductwork if the
mechanical ventilation system is operated with-
out filters. This increases the air pressure drop.
Switch the ventilation unit off before removing
the extract air vents: see chapter "Stopping ven-
tilation to change the filters".
A
Fig. 47
AAnnular gap
1. Undo the supply air/extract air vents (bayonet fit-
ting).
2. Clean the vents with a damp cloth.
3. Refit the vents.
Note
Never alter the setting of annular gap A.
If the filters in the extract air vents are dirty, replace
them: see chapter "Replacing the filters in the extract
air vents".
Cleaning the kitchen extract air vent
!Please note
Dust will settle inside the ductwork if the
mechanical ventilation system is operated with-
out filters. This increases the air pressure drop.
Switch the ventilation unit off before removing
the filter from the kitchen extract air vent: see
chapter "Stopping ventilation to change the fil-
ters".
3.
B
A
1.
2.
Fig. 48
AGrease filter
BLocking plug
4. Remove the grease filter. Clean the kitchen extract
air vent with a damp cloth.
5. Clean grease filter A with water and detergent or
in the dishwasher. Dry grease filter A.
6. Refit the grease filter. Close the kitchen extract air
vent. Secure the kitchen extract air vent with safety
plug B.
Maintenance
Cleaning the mechanical ventilation system (cont.)
5817913
69
If the programming unit display shows "A0 Vent.:
check filter(s)", the filters inside the ventilation unit
are contaminated or the interval for changing the filters
has expired.
Note
Also check the filters in the extract air vents. Replace
these filters if necessary: see chapter "Replacing the
filters in the extract air vents".
Vitovent 200-C and Vitovent 300-F
Do not clean the filters. Replace the filters.
Dispose of contaminated filters through household
waste.
Note
The number of days remaining to the next filter change
can be called up from the "Information" menu: see
chapter "Calling up information".
Vitovent 200-W, Vitovent 300-C and Vitovent 300-W
In the case of light contamination, clean filters inside
the ventilation unit with the aid of a vacuum cleaner.
Note
Cleaning the filters may impair their effectiveness.
If one of the following conditions applies, replace the
filters:
The filters are heavily contaminated.
Filters have already been cleaned several times.
The last filter change was more than 1 year ago.
Dispose of contaminated filters through household
waste.
Note
The number of days remaining to the next filter check
can be called up from the "Information" menu: see
chapter "Calling up information".
Filters in the Vitovent 200-C ventilation unit
!Please note
Operating the open ventilation unit without filters
will lead to dust being deposited in the unit.
These dust deposits can result in malfunctions.
Pull the mains plug from its socket before open-
ing the ventilation unit.
Maintenance
Cleaning or replacing filters
5817913
70
Replacing the filters with ceiling installation
A
B
2x
4.
2.
3.
1.
2x
2x
2x
Fig. 49
AOutdoor air filter
BExtract air filter
Maintenance
Cleaning or replacing filters (cont.)
5817913
71
Replacing the filters with wall mounting
B
A
2.
3.
4.
1.
2x
2x
2x
2x
Fig. 50
AOutdoor air filter
BExtract air filter
Filters in the Vitovent 200-W ventilation unit
!Please note
Operating the open ventilation unit without filters
will lead to dust being deposited in the unit.
These dust deposits can result in malfunctions.
Pull the mains plug from its socket before open-
ing the ventilation unit.
Maintenance
Cleaning or replacing filters (cont.)
5817913
72
Opening the ventilation unit
A
B
Fig. 51
AExtract air filter
BOutdoor air filter
Cleaning the filters and replacing if required
Note
Prior to removing filters, note their installation position.
If necessary, mark positions with a pen.
Maintenance
Cleaning or replacing filters (cont.)
5817913
73
B
A
1.
2.
4.
3.
Fig. 52
AExtract air filter
BOutdoor air filter
Filters in the Vitovent 300-C ventilation unit
!Please note
Operating the open ventilation unit without filters
will lead to dust being deposited in the unit.
These dust deposits can result in malfunctions.
Pull the mains plug from its socket before open-
ing the ventilation unit.
Maintenance
Cleaning or replacing filters (cont.)
5817913
74
Removing the filter boxes from the unit
2.
3.
4.
1.
B
A
Fig. 53
AExtract air filter box
BOutdoor air filter box
Cleaning the filters and replacing if required
Note
If you use a fine filter: before removing the filter from
the filter box, make a note of which is the top and
which is the bottom. If necessary, mark the position on
the filter box with a pen.
3.
4.
2.
1. 2x
Fig. 54
Inserting the filter boxes into the unit
A
1.
2.
B
Fig. 55
AExtract air filter
BOutdoor air filter
Maintenance
Cleaning or replacing filters (cont.)
5817913
75
Filters in the Vitovent 300-F ventilation unit
!Please note
Operating the open ventilation unit without filters
will lead to dust being deposited in the unit.
These dust deposits can result in malfunctions.
Before opening the ventilation unit, turn off the
ON/OFF switch.
A
Fig. 56
AON/OFF switch on the back of the appliance
Opening the ventilation unit
Remove the left or right side panel
1.
Fig. 57
Maintenance
Cleaning or replacing filters (cont.)
5817913
76
Replacing the filters
5.
A
B
1.
2.
3.
4.
6.
Fig. 58
AExtract air filter
BOutdoor air filter
Filters in the Vitovent 300-W ventilation unit
!Please note
Operating the open ventilation unit without filters
will lead to dust being deposited in the unit.
These dust deposits can result in malfunctions.
Pull the mains plug from its socket before open-
ing the ventilation unit.
Maintenance
Cleaning or replacing filters (cont.)
5817913
77
Opening the ventilation unit
Fig. 59
Cleaning the coarse filters and replacing if
required
Note
Prior to removing filters, note their installation position.
If necessary, mark positions with a pen.
Maintenance
Cleaning or replacing filters (cont.)
5817913
78
1.
3.
1.
2.
Fig. 60
AExtract air filter
BOutdoor air filter
Cleaning the filters and replacing if required
Note
Prior to removing filters, note their installation position.
If necessary, mark positions with a pen.
Maintenance
Cleaning or replacing filters (cont.)
5817913
79
3.
A
B
2.
4.
1.
Fig. 61
AExtract air filter
BOutdoor air filter
Replacing filters in the extract air valves
!Please note
Dust will settle inside the ductwork if the
mechanical ventilation system is operated with-
out filters. This increases the air pressure drop.
Turn the ON/OFF switch of the ventilation unit
OFF before undoing the extract air valves.
Maintenance
Cleaning or replacing filters (cont.)
5817913
80
2.
1.
Fig. 62
Resetting the filter change service indicator
1. Start the ventilation unit after changing the filters.
!Please note
Dust deposits in the appliance can result in
malfunctions
Never start the appliance without supply air
and extract air filters.
2. Manually reset the service display for filter changes
at the heat pump control unit.
3. Extended menu:
4. "Ventilation"
5. "Filter change"
6. "Yes"
7. "OK" to confirm
Maintenance
Cleaning or replacing filters (cont.)
5817913
81
The appliance contains fluorinated hydrocarbons
(refrigerant) included in the Kyoto Protocol.
The type plate indicates the type of refrigerant used in
the appliance.
The global warming potential (GWP) of the refrigerant
is expressed as a multiple of the GWP of carbon diox-
ide (CO2). The GWP of CO2 is 1.
Refrigerant Global warming poten-
tial
R134a 1430
R404A 3920
Refrigerant Global warming poten-
tial
R410A 2088
R407C 1774
R417A 2350
Overview of extended menu
Note
Subject to the features of your heating system, not all
of the menu entries shown may be available under .
Extended menu
Heating, Heating/cooling or Cooling HC1/HC2/HC3/SKK
"Party mode"
"Economy mode"
"Set room temperature"
"Set red. room temp"
"Operating program"
"Heating and DHW"
or
"Heating/cooling and DHW"
or
"Htg"
or
"Cooling"
or
"Cooling and DHW"
"Only DHW"
"Standby mode"
"Time program heating"
or
"Time proghtg/cooling"
"Holiday program"
"Heating curve"
Active cooling mod.
"Cooling curve"
Appendix
Refrigerant
5817913
82
"DHW"
"Set DHW temperature"
"Operating program"
"Time program"
"Standby mode"
"1x DHW heating"
"Time program DHW"
"Time prog DHW circ"
"DHW with electr.heating"
"Start optimisation"
"Stop optimisation"
"Set DHW temperature 2"
"Ventilation"
"Intensive operation"
"Economy mode"
"Set room temperature"
"Min supply air t. byp"
"Operating program"
"Ventilation program"
"Standard operation"
"Standby mode"
"Time prog ventilation"
"Holiday program"
"Filter change"
"System"
Buffer cyl operating mode
Active cooling mod.
"Time prog buffer cyl"
Time prog. coolnt buff cyl.
"Time prog. noise red."
"Electric heating"
"Time prog elec heater"
Solar energy
Appendix
Overview of extended menu (cont.)
5817913
83
"PV ctrl strategy"
"Set DHW temperature 2"
"DHW cylinder heating"
"Heating htg water buff cyl"
"Raise room temperature"
"Room temp. cooling"
Coolant buffer cyl cooling
"Smart Grid"
"DHW cylinder heating"
"Heating htg water buff cyl"
"Raise room temperature"
"Room temp. cooling"
Note
Subject to the features of your heating system, not all
of the call-up options may be available under "Infor-
mation".
Further details can be called up for any information
marked with .
Appendix
Overview of extended menu (cont.)
5817913
84
"Information"
"System"
"Outside temperature"
"Common flow temp"
Operating status system
"Time prog. noise red."
"Heating season"
"Cooling period"
"Buffer cylinder"
Buffer cyl operating mode
"Op. status buffer cylinder"
Time prog buffer cyl
Coolant buffer op. status
Time prog. coolnt buff cyl.
Valve heating/cooling
Coolant buffer temp.
Coolant buffer t. set
Cooling w coolant buff.
Coolant buffer flow t
Coolant buff set flow t
Coolant buffer mixer
Coolant buffer pump
Active cooling
Natural cooling
External heat source
Time prog elec heater
"Central fault"
Op. status swimming pool
"Sw. pool heat demand"
"Swimming pool heating"
"Lag heat pump 1"
"Lag heat pump 2"
"Lag heat pump 3"
"Lag heat pump 4"
"Subscriber no."
"Ext. hook-up 0..10V"
"Time"
"Date"
"Radio clock signal"
"Screed drying days"
Appendix
Overview of extended menu (cont.)
5817913
85
"Information"
Heating circuit HC1, HC2, HC3
"Operating program"
"Operating status"
Time program heating
or
Time proghtg/cooling
"Set room temp."
"Room temperature"
"Set red. room temp"
"Set party temperature"
Heating curve
"Heating circuit pump"
Holiday program
"Mixer"
Flow temperature
Set flow temperature
Cooling curve
"Active cooling"
"Natural cooling"
"Mixer cooling"
"Flow temp. cooling"
Heating season
Cooling period
Demand htg mode
Demand cool mode
Cooling circuit SKK
Operating program
"Operating status"
"Set room temp."
"Room temperature"
"Mixer"
"Flow temperature"
"Cooling curve"
"Active cooling"
"Natural cooling"
Appendix
Overview of extended menu (cont.)
5817913
86
"Information"
"DHW"
Operating program
Operating status
Time program DHW
Time prog DHW circ
DHW temperature
"Cylinder primary pump"
"DHW circulation pump"
"1x DHW heating"
"Cylinder reheating"
"Cylinder reheating" (h)
"Ventilation"
Operating program
Operating status
Time prog ventilation
"Set room temp."
"Min supply air t. byp"
"Humidity"
"El. preheater bank"
"Days to filter change"
"Solar"
"Collector temperature"
"DHW temp. solar"
"Return temp. solar"
"Solar circuit pump" (h)
"Solar energy bar chart"
"Solar energy" (kWh)
"Solar circuit pump"
"Reheat suppression"
"SM1 output 22"
"Solar sensor 7"
"Solar sensor 10"
Appendix
Overview of extended menu (cont.)
5817913
87
"Information"
"Heat pump"
"Compressor" or "Compressor 1"
"Primary pump/Fan" or "Primary pump/Fan 1"
"Alternative source"
"Secondary pump" or "Secondary pump 1"
"Valve heating/DHW" or "Valve heating/DHW 1"
"Hours run compressor" or "Hours run compressor 1"
"No. of starts comprssr" or "No. of starts comprssr 1"
"Compressor 2"
"Primary pump/Fan 2"
"Secondary pump 2"
"Valve heating/DHW 2"
"Hours run comprssr2"
"No.of starts cmprssr2"
"Inst.water heater st.1"
"Inst.water heater st.1" (h)
"Inst.water heater st.2"
"Inst.water heater st.2" (h)
"SPF heating"
"SPF DHW"
"SPF overall"
"SPF cooling"
"Energy statement"
"Energy statement htg 1"
"Energy statement DHW 1"
"Energy statem. cooling 1"
"Energy statement htg 2"
"Energy statement DHW 2"
"Energy statem. cooling 2"
"PV energy statemt"
"Daily log"
Appendix
Overview of extended menu (cont.)
5817913
88
"Settings"
"Time / Date"
"Language"
"Contrast"
"Brightness"
"Control"
"Screen saver"
"Temperature unit"
"Name for heating circuit"
"Standard menu"
"Standard setting"
"System"
"Compressor 1"
"Compressor 2"
"Heat management"
"DHW"
"Solar"
"Electr booster heater"
"Internal hydraulics"
"Buffer cylinder"
"Heating circuit 1"
"Heating circuit 2"
"Heating circuit 3"
"Cooling"
"Ventilation"
"Photovoltaics"
"Smart Grid"
"Primary source"
"Primary source 2"
"Time"
"Communication"
"Control"
Manual mode
Test mode
Terminology
Defrosting
Ice can form on the evaporator during the operation of
air/water heat pumps.
To remove this ice, the evaporator is automatically
defrosted.
During defrosting, the heat pump is not available for
central heating or central cooling.
Water vapour can rise from the heat pump during
defrosting.
Appendix
Overview of extended menu (cont.)
5817913
89
As in active cooling mode, defrosting involves reverse
operation of the heat pump. This is why the hours run
for defrosting are logged with the "AC" hours run in
the daily log.
Active cooling mode ("Active cooling")
Active cooling mode: see "Cooling functions".
System version
The system version describes the components of your
heating system, such as a heat pump, heating circuit
pump, mixer, valves, control unit, radiators, etc.
Your contractor will adjust the heating system to the
local conditions and customise the system to suit your
requirements.
Your contractor will have listed the equipment and
functions of your heating system in the form on
page 102.
Operating program
The operating program enables you to define the fol-
lowing:
How you heat or cool your rooms
Whether you heat DHW
Which ventilation stage is active for your mechanical
ventilation
Operating status
See "Time program".
Pressure imbalance
A pressure imbalance can occur in rooms in conjunc-
tion with controlled mechanical ventilation if the air flow
rate settings are not balanced.
In this context, a pressure imbalance occurs when the
air flow rate on the supply air side is different to that on
the extract air side. In the case of highly airtight build-
ings, this creates either negative or positive pressure
in the interior. With negative pressure, windows and
doors bang open; in the case of positive pressure, win-
dows and doors easily fall shut.
Utilisation of power generated on site
When utilising power generated on site, the power
generated by the photovoltaic system is used to oper-
ate the heat pump and other heating system compo-
nents.
Your contractor has connected an electricity meter
(energy meter) to the heat pump control unit for the uti-
lisation of power generated on site. It supplies the heat
pump control unit with information about whether and
how much power is available from the PV system.
Display on electricity meter
Energy supplied by the grid (power supply utility):
The electricity meter shows the output with a minus
sign in front of it:
Fig. 63
Note
Up to 3 fault bars are displayed on the electricity
meter. This does not affect the function of the heat
pump control unit.
Appendix
Terminology (cont.)
5817913
90
Energy fed into the grid (power supply utility):
The electricity meter shows the output without a plus/
minus sign in front of it.
Functions for the utilisation of power generated on
site
Enable one or more functions for the utilisation of
power generated on site. The functions that can be uti-
lised depend on the appliance type.
If you enable several functions for the utilisation of
power generated on site, the functions for DHW heat-
ing will have priority over the functions for central heat-
ing.
To utilise the power generated on site, you can raise
the set temperature for some functions or lower it for
cooling.
Possible functions for the utilisation of power gener-
ated on site:
DHW heating
Heating the heating water buffer cylinder
Central heating
Central cooling
It is a condition for the utilisation of power generated
on site that the relevant operating program for central
heating, central cooling or DHW heating is set. E.g. the
operating program "Heating and DHW" or "Only
DHW" must be set for DHW heating.
Example: utilisation of power generated on site for
DHW heating
If sufficient power from the photovoltaic system is
available, the heat pump will be operated for DHW
heating using this power.
In the time program you have set the time phases dur-
ing which DHW heating is enabled. In order to use as
much of the power generated by the PV system as
possible, DHW heating may also be switched on out-
side the set time phases.
In order to make more effective use of power gener-
ated on site, set an increase for the DHW temperature.
Standard DHW temperature:
50 °C
Increase the DHW temperature when utilising power
generated on site:
10 K (10 Kelvin)
The DHW is heated to 60 °C. If DHW consumption is
the same, the next DHW heating period using power
from the grid is postponed until later.
Note
In parallel to the utilisation of power generated on
site, a percentage of power can be drawn from the
grid for operating the heat pump: e.g. if the amount
of power generated on site is insufficient to drive the
circulation pump. Your contractor can set the level of
this percentage.
Only for air/water heat pumps (not all types):
To raise and lower the set temperatures, your con-
tractor can implement a setting that will automatically
match the compressor output to the amount of power
generated by the photovoltaic system. This prevents
power for operating the heat pump being drawn from
the grid.
Utilisation of power generated on site and utilisa-
tion of excess power from the grid (Smart Grid)
If the utilisation of power generated on site and Smart
Grid are enabled and active, the function with the larg-
est temperature increase or reduction applies.
Electric booster heater
If the required room temperature or DHW temperature
cannot be achieved with the heat pump alone, an elec-
tric booster heater (if installed) can be activated.
Examples of electric booster heaters:
Instantaneous heating water heater:
For central heating and/or DHW heating
Integrated into the heat pump or into the flow of
your heating system
Immersion heater:
For DHW heating
Integrated into the DHW cylinder
Note
Constant operation of an electric booster heater
results in high electricity consumption.
You can set a time program for the electric booster
heater.
Enthalpy heat exchanger
In ventilation units with heat recovery, the cooler sup-
ply air is preheated with the heat from the extract air in
the integral heat exchanger. For this, neither air stream
comes into direct contact with the other.
Appendix
Terminology (cont.)
5817913
91
The enthalpy heat exchanger is able to obtain not only
heat from the extract air, but also a large proportion of
the moisture it contains. This enables the humidity
heat exchanger to create a more pleasant indoor ambi-
ence, particularly during colder times of year, as it pre-
vents the indoor air becoming too dry.
Power-OFF
At times of high demand for electricity, your power sup-
ply utility can block the power supply to your appliance
[Germany]. During this power-OFF period, the mes-
sage "Power-OFF" is shown on the display.
The appliance restarts automatically with the selected
operating program as soon as the power supply utility
enables the power supply again.
During power-OFF, central heating is provided by the
heating water buffer cylinder. If no heating water buffer
cylinder is installed or its temperature is too low, the
rooms are heated using the available auxiliary heaters,
e.g. oil boiler, electric booster heater.
DHW can only be heated during the power-OFF period
using the auxiliary heaters.
Underfloor heating
Underfloor heating systems are slow, low temperature
heating systems that respond only very slowly to short
term temperature changes.
Therefore, heating to the reduced room temperature at
night or switching on "Economy mode" during short
absences does not result in significant energy savings.
Reduced noise operation
Air/water heat pumps have an integrated fan. The
speed of this fan can be reduced with this time pro-
gram. This reduces the noise caused by the fan, e.g.
at night.
Note
The reduced fan speed results in a reduced available
heating output. With air/water heat pumps with output
control, this can be compensated by increasing the
compressor output if required. This will slightly reduce
the seasonal performance factor.
Heating mode/cooling mode
Standard heating mode/cooling mode
For periods when you are at home during the day, you
heat or cool your rooms to the standard room tempera-
ture. Set the periods (time phases) using the time pro-
gram for central heating/cooling.
Reduced heating mode
For periods when you will be absent or during the
night, you heat your rooms to the reduced room tem-
perature. Set the periods using the time program for
central heating/cooling. With underfloor heating sys-
tems, reduced heating mode only yields limited energy
savings (see "Underfloor heating system").
Note
In reduced heating mode, cooling is disabled.
Room temperature-dependent heating/cooling
mode
With room temperature-dependent operation, a room
will be heated or cooled until the selected room tem-
perature has been reached. For this, a separate tem-
perature sensor must be installed in the room.
The heating output/cooling capacity is regulated inde-
pendently of the outside temperature.
Weather-compensated heating/cooling mode
In weather-compensated mode, the flow temperature
is controlled according to the outside temperature. This
means that only the necessary amount of heating or
cooling is provided to heat or cool the rooms to the
room temperature you have selected.
The outside temperature is recorded and transferred to
the heat pump control unit by a sensor fitted outside
the building.
Appendix
Terminology (cont.)
5817913
92
Heating curve/cooling curve
The heating/cooling characteristics of your heat pump
are affected by the slope and level of the selected
heating curve/cooling curve.
Heating and cooling curves represent the relationship
between the outside temperature, room temperature
(set room temperature) and (heating circuit) flow tem-
perature.
Heating curve:
The lower the outside temperature, the higher the
flow temperature in the heating circuit.
Cooling curve:
The higher the outside temperature, the lower the
flow temperature in the cooling circuit.
In order to guarantee sufficient heat at any outside
temperature, the conditions of your building and your
heating system must be taken into consideration. For
this, you can adjust the heating curve.
You can also adjust the cooling curve for cooling
mode.
Heating curve
3.2
3.4
Flow temperature in °C
Outside temperature in °C
Heating curve slope
3.0
2.8
2.2
2.4
2.0
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
90
80
70
60
50
40
30
20
1.8
2.6
1020 -30-20-100
Fig. 64
Cooling curve
1.2
30 25 2035
Outside temperature in °C
Flow temperature in °C
1
5
10
15
20
1.4 1.6
1.0
0.8
0.6
0.4
0.2
1.8 2.0 2.2 3.43.02.6
Cooling curve slope
Fig. 65
Setting the slope and level, taking the heating curve as an example
Factory settings:
Slope = 0.6
Level = 0
The heating curves shown apply with the following set-
tings:
Heating curve level = 0
Standard room temperature (set room temperature)
= 20 °C
Appendix
Terminology (cont.)
5817913
93
0.2
Outside temperature in °C
Flow temperature in °C
Slope
2.4
2.6 2.8
3.0 3.2
3.4
90
80
70
60
50
40
30
0 -10 -2010
2.0
2.2
35 30 25 20 15 10 5
0.4
0.6
0.8
1.0
1.2
-30
1.8
1.6
-14
1.4
B
A
Set room temperature in °C
Fig. 66
For outside temperature 14 °C:
AUnderfloor heating system: slope 0.2 to 0.8
BLow temperature heating system: slope 0.8 to 1.6
AB
Flow temperature
in °C
110
Outside temperature
in °C
3.5
1.4
0.2
-20
C
Set room temperature in °C
35 30 25 20 15 10 5
Fig. 67
AIf you change the slope:
The steepness of the heating curves changes.
BIf you change the level:
The heating curves are shifted in parallel in a verti-
cal direction.
CIf you change the standard room temperature (set
room temperature):
The heating curves are moved along the "set room
temperature" axis.
Note
Setting the slope or level too high or too low will not
result in damage to your heat pump or your heating
system.
Both settings affect the level of the flow temperature,
which may then be too low or unnecessarily high.
You will be provided with tips on when and how to
change the heating curve slope and level. For this,
press ?.
Appendix
Terminology (cont.)
5817913
94
Heating/cooling circuits
A heating or cooling circuit is a sealed unvented circuit
between the heat pump and the consumers (e.g. radia-
tors), in which the heating water or coolant circulates.
A separate cooling circuit is a separate sealed unven-
ted circuit that supplies a cooling appliance, such as a
fan convector or a chilled ceiling. Cooling via a sepa-
rate cooling circuit is independent of the outside tem-
perature.
Heating and cooling of the entire interior can, if
required, be split over several heating circuits and one
cooling circuit.
Up to 3 heating circuits are possible ("Heating cir-
cuit 1", "Heating circuit 2", "Heating circuit 3"), e.g.
one heating circuit for the rooms occupied by yourself
and one heating circuit for the rooms of a separate flat.
Only one cooling circuit is possible:
Heating/cooling circuit
Cooling operation via a heating circuit ("Heating cir-
cuit 1", "Heating circuit 2", "Heating circuit 3"),
e.g. a room with underfloor heating. This room can
be cooled in summer and heated in winter.
Cooling via the heating circuit only takes place when
the outside temperature has exceeded the cooling
limit. Heating via the heating circuit only takes place
when the outside temperature has fallen below the
heating limit. The cooling limit and the heating limit is
set by your qualified contractor.
or
Separate cooling circuit
The separate cooling circuit ("Cooling circuit SKK")
can be connected to the heat pump control unit in
addition to the max. 3 heating circuits.
A separate cooling circuit cannot be used to provide
heating.
In these operating instructions, the heating circuits, the
heating/cooling circuit and the separate cooling circuit
are generally referred to as the heating/cooling cir-
cuits. A differentiation between the heating circuit,
heating/cooling circuit and separate cooling circuit is
only made in individual cases.
Example:
"Heating circuit 1" is the heating circuit for the
rooms occupied by you.
"Heating circuit 2" is the heating circuit for the
rooms of a separate apartment.
"Cooling circuit SKK" is a separate cooling circuit
with fan convector for a storage room.
The heating/cooling circuits are designated at the fac-
tory as "Heating circuit 1", "Heating circuit 2",
"Heating circuit 3", "Cooling circuit SKK".
If you or your qualified contractor have renamed the
heating/cooling circuits, e.g. as "Apartment", that des-
ignation will be displayed instead of "Heating cir-
cuit..."/"Cooling circuit SKK".
Heating circuit pump
Circulation pump for the circulation of the heating
water in the heating/cooling circuit.
Instantaneous heating water heater
See "Electric booster heater".
Heating water/coolant buffer cylinder
A heating water/coolant buffer cylinder stores either
thermal energy for central heating or cooling energy for
central cooling.
To ensure that no condensation forms during central
cooling, heating water/coolant buffer cylinders have a
special type of thermal insulation.
All heating/cooling circuits are supplied either with
thermal energy or with cooling energy via the heating
water/coolant buffer cylinder.
You can switch between central heating and central
cooling via the extended menu.
For further information on buffer cylinders, see "Buffer
cylinders".
Appendix
Terminology (cont.)
5817913
95
Heating water buffer cylinder
A heating water buffer cylinder stores thermal energy
for central heating. All heating/cooling circuits are sup-
plied from this buffer cylinder.
Central cooling is possible only over one cooling cir-
cuit. A hydraulic bypass circuit prevents coolant from
entering the heating water buffer cylinder.
For further information on buffer cylinders, see "Buffer
cylinders".
Cascade
See "Heat pump cascade".
Controlled mechanical ventilation
A mechanical ventilation system provides continuous
ventilation of your interior.
The mechanical ventilation system comprises a venti-
lation unit, the ductwork, as well as supply air and
extract air vents.
An outdoor air filter installed in the ventilation unit pro-
tects against the ingress of pollen.
If a Viessmann ventilation unit is connected to the heat
pump control unit, all ventilation functions can be set at
the heat pump control unit.
Operating principle of the ventilation unit
C
E
B
D
A
F
Fig. 68 Example: Vitovent 300-F
ASupply air: e.g. for bedrooms, children's rooms, liv-
ing room
BExhaust air
COutdoor air
DExtract air: e.g. from the kitchen, bathroom, WC
EBypass not active:
Ventilation with heat recovery
FBypass active: ventilation without heat recovery,
e.g. for passive heating or cooling
Ventilation with heat recovery, bypass blocked
The air that is introduced into the rooms (supply air) is
preheated with the heat from the extracted air (extract
air) via a heat exchanger in the ventilation unit. For
this, bypass E is not active.
This means the energy loss is very low, compared to
airing via open windows.
Ventilation without heat recovery, bypass active
When bypass F is active, 100 % of the extract air
flow is routed past the heat exchanger, and filtered
fresh outdoor air at outside temperature is introduced
into the rooms.
Depending on the outside temperature and room tem-
perature, when the bypass is active, cooler or warmer
outdoor air is channelled into the rooms. This means
the rooms are passively cooled or passively heated.
Passive cooling
Cooler outdoor air is supplied to the rooms on cool
summer nights, for example.
The bypass is active for passive cooling if all of the fol-
lowing conditions are met:
Vitovent 200-C:
It is at least 4 °C warmer inside than outside.
The room temperature is at least 1 °C higher than
the "Set room temperature" for ventilation.
The outdoor air is at least 0.5 °C warmer than the
"Min supply air t. byp".
Vitovent 300-F:
It is at least 4 °C warmer inside than outside.
The room temperature is at least 1 °C higher than
the "Set room temperature" for ventilation.
The supply air exceeds the minimum temperature for
passive cooling ("Min supply air t. byp").
Appendix
Terminology (cont.)
5817913
96
Vitovent 200-W, Vitovent 300-C and Vitovent 300-W:
It is warmer inside than outside.
The room temperature is higher than the "Set room
temperature" for ventilation.
The outdoor air is warmer than 7 °C.
Passive heating
Warmer outdoor air is supplied to the rooms on warm
spring days, for example.
The bypass is active for passive heating if all of the fol-
lowing conditions are met:
Vitovent 200-C and Vitovent 300-F:
The outdoor air is at least 4 °C warmer than the
room temperature.
The room temperature is at least 1 °C cooler than
the "Set room temperature" for ventilation.
Note
With the Vitovent 200-W, Vitovent 300-C and
Vitovent 300-W, passive heating is not possible.
Air flow rates
In order to prevent any negative or positive pressures
developing in your rooms, the flow rate of the supply
air must exactly match the flow rate of the extract air.
Your contractor regulates these air flow rates during
commissioning.
Regulating the humidity and carbon dioxide con-
centration (CO2 concentration)
If a CO2/humidity sensor (accessories) is installed in
one of your rooms, the ventilation unit can adjust the
air flow rate subject to the humidity and/or carbon
dioxide concentration (CO2) of this room.
If a humidity sensor (accessories) is installed in the
central extract air duct, the ventilation unit can adjust
the air flow rate subject to the humidity of all rooms.
The humidity and carbon dioxide concentration can
only be controlled in the "Ventilation program".
Frost protection for the heat exchanger in the ven-
tilation unit
Heat recovery transfers heat from the extract air to the
incoming outdoor air. This causes the extract air to
cool down, which in turn leads to condensate forming
in the heat exchanger. At low outside temperatures,
condensate can freeze on the heat exchanger. Heat
recovery is reduced. The worst-case scenario is that
the ice damages the heat exchanger.
Frost protection with electric preheating coil:
To prevent ice forming on the heat exchanger, the
outdoor air can be preheated by an electric preheat-
ing coil before it enters the heat exchanger. Some
ventilation units have an electric preheating coil pre-
fitted at the factory. For other units, your contractor
will install an electric preheating coil in the outdoor
air duct.
Frost protection without electric preheating coil:
If your ventilation unit does not have an electric pre-
heating coil, the air flow rate will be reduced in order
to protect the heat exchanger, if necessary until the
fans come to a standstill.
Defrost functions: Only with Vitovent 200-C
Your contractor can set various functions to defrost
any ice that may have formed on the heat
exchanger: e.g. the outdoor air flow rate can bypass
the heat exchanger and/or the supply air flow rate
can be reduced. In addition, the electric preheating
coil (accessories) can be switched on.
Note
With frost protection, the indicated ventilation level
may deviate from the ventilation level selected. The
ventilation level displayed is adjusted to reflect the
reduced air flow rate brought about by the frost protec-
tion function.
Only with Vitovent 300-F: supply air heating via
heating circuit 1 (ventilation heating circuit)
If a hydraulic reheating coil (accessories) has been
installed in your ventilation unit, the supply air can be
heated by the heat pump. The outdoor air/supply air
preheated in the heat exchanger of the ventilation unit
is reheated via the hydraulic reheating coil of the heat
pump.
In such a case, set the room temperature and time
program for central heating via the menu for heating
circuit 1.
Note
The level of heating output that can be transmitted via
the ventilation heating circuit is only minimal. Using
supply air heating as the sole heat source is therefore
only recommended for highly insulated buildings (e.g.
passive houses).
Cooling mode
See "Heating mode/cooling mode".
Appendix
Terminology (cont.)
5817913
97
Cooling functions
The natural cooling and active cooling functions are
supported depending on the heat pump type and the
installed accessories.
Brine/water heat pumps:
"Natural cooling"
With this function, the temperature level of the
ground is transferred directly to the heating/cooling
circuit or the separate cooling circuit. Compared with
active cooling, the available cooling capacity is lower
in natural cooling mode. As the compressor is
switched off, this function is very energy efficient and
therefore suitable for constant cooling.
"Active cooling"
If the natural cooling capacity is insufficient and the
necessary accessories are installed, the control unit
can automatically switch to active cooling mode.
In active cooling mode, the temperature of the heat
transfer medium cooled underground is reduced
even further before it is transferred to the heating/
cooling circuit or separate cooling circuit. As a result,
the available cooling capacity is significantly higher
compared to natural cooling.
Constant cooling operation results in increased
power consumption as the compressor is in opera-
tion in addition to the circulation pumps.
You can enable and block the active cooling mode
individually.
Air/water heat pumps:
"Natural cooling"
is not available.
"Active cooling"
Cooling takes place by reversing the heat pump
operation. A high cooling capacity is available.
Cooling curve
See "Heating curve/cooling curve".
Cooling circuit
See "Heating/cooling circuits".
Output matching
In heat pumps with output-dependent control, the com-
pressor speed is automatically matched to the required
output. Heat pumps with output-dependent control are
therefore more efficient than heat pumps without out-
put adjustment.
When utilising power generated on site, the power
consumption of the compressor can automatically
adapt to the power available from the photovoltaic sys-
tem. This optimises the utilisation of power generated
on site.
Ventilation
See "Controlled domestic ventilation".
Appendix
Terminology (cont.)
5817913
98
Mixer
Central heating
A mixer mixes the heated heating water with the
cooled water returning from the heating circuit. The
water, thus brought to the right temperature, is pumped
to the heating circuit by the heating circuit pump. The
heat pump control unit adjusts the heating circuit flow
temperature via the mixer to suit different conditions,
e.g. changing outside temperatures.
Central cooling
The flow temperature is also set via a mixer with cen-
tral cooling.
In addition, the flow temperature is kept above the con-
densation point of the indoor air (dew point) via a
mixer. This prevents condensation forming on the floor.
Buffer cylinder
A buffer cylinder stores a large quantity of heating
water or coolant. This allows the heating/cooling cir-
cuits to be supplied over a longer period without the
heat pump needing to start up, e.g. during power-OFF.
Due to the large buffer volume, the heat pump contin-
ues to operate to heat or cool the buffer cylinder than it
would if there were no buffer cylinder.
Infrequent starting of the heat pump and long runtimes
ensure long and efficient operation.
By adjusting the time program appropriately, you can
use economical night tariff power to heat the buffer cyl-
inder to a higher level, or cool it to a lower level. During
the daytime, the heating/cooling circuits can be sup-
plied with this cheap energy.
The following buffer cylinders can be built into your
system:
Heating water buffer cylinder: See "Heating water
buffer cylinder".
Heating water/coolant buffer cylinder: See "Heating
water/coolant buffer cylinder".
Room temperature
Standard room temperature:
Set the standard room temperature for periods when
you are at home during the day.
Reduced room temperature:
For periods when you will be absent or during the
night, set the reduced room temperature; see: "Heat-
ing mode/cooling mode".
Room temperature for ventilation:
This room temperature influences activation of the
bypass: see "Controlled mechanical ventilation".
Return temperature
The return temperature is the temperature at which the
heating water or coolant leaves a system component
such as a heating circuit.
Smart Grid (SG)
To enable you to use Smart Grid, your contractor has
connected the heat pump control unit to the mains
supply via 2 switching contacts. The power supply util-
ity can use these switching contacts to match opera-
tion of the heat pump to the current grid utilisation
level.
Appendix
Terminology (cont.)
5817913
99
The following 4 options for grid utilisation are taken
into account:
1. Not a lot of power in the grid (grid overload):
The power supply utility can block the heat pump if
not a lot of power is available.
The appliance restarts automatically with the selec-
ted operating program as soon as the power supply
utility enables the power supply again.
During power-OFF, central heating is provided by
the heating water buffer cylinder. If no heating water
buffer cylinder is installed or its temperature is too
low, the rooms are heated using the available auxili-
ary heaters, e.g. oil boiler, electric booster heater.
DHW can only be heated during the power-OFF
period using the auxiliary heaters.
2. No excess power, normal grid utilisation:
The heat pump is operated according to its settings
and the agreed conditions (electricity price).
3. Small amount of excess power:
The power supply utility provides the power at no
cost.
If a time phase is active in the time program, the
heat pump is started. To utilise the cheap power,
you can raise the set temperature for the following
functions or lower it for cooling:
DHW heating
Heating the heating water buffer cylinder
Central heating
Central cooling
Enable electric booster heater
Note
The functions that can be utilised depend on the
heat pump type.
4. Large amount of excess power:
The power supply utility provides the excess power
at no cost.
The power supply utility starts the heat pump imme-
diately, even if no time phase is active in the time
program. System components are heated to the
max. possible temperatures or cooled to the min.
possible temperatures.
Information about operation with cheap and free
electricity
Electric power consumptions of the heat pump and the
electric booster heater are not taken into account when
calculating the seasonal performance factor.
Example: utilisation of excess power for DHW
heating
Cheap excess power
The heat pump is operated with the excess power from
the power supply utility to heat DHW to the increased
set DHW temperature.
In the time program you have set the time phases dur-
ing which DHW heating is enabled. The power supply
utility may start DHW heating, even outside the set
time phases.
To utilise even more cheap excess electricity for DHW
heating, the standard DHW temperature can be
increased. You can set the value for this temperature
increase.
Standard DHW temperature:
50 °C
Increase the DHW temperature when utilising power
generated on site:
10 K (10 Kelvin)
The DHW is heated to 60 °C. If DHW consumption is
the same, the next DHW heating period using power at
the standard tariff is postponed until later.
Free excess power
DHW heating is started immediately, regardless of
your settings in the time program.
The DHW will be heated to the maximum possible
temperature. This temperature has been set by your
contractor.
Standard DHW temperature:
50 °C
Max. temperature of your DHW cylinder (set by your
contractor):
65 °C
The DHW is heated to 65 °C. If DHW consumption is
the same, the next DHW heating period using power at
the standard tariff is postponed until later.
Note
If you enable several functions for Smart Grid, the
functions for DHW heating will have priority over the
functions for central heating.
The modified set temperatures do not affect the elec-
tric booster heater. The electric booster heater is
switched off at the limits that apply without Smart
Grid. In the example, this is the standard DHW tem-
perature of 50 °C.
Utilisation of power generated on site and utilisa-
tion of excess power from the grid (Smart Grid)
If the utilisation of power generated on site and Smart
Grid are enabled and active, the function with the larg-
est temperature increase or reduction is used.
Appendix
Terminology (cont.)
5817913
100
Safety valve
A safety device that must be installed by your heating
contractor in the cold water pipe. The safety valve
opens automatically to prevent excess pressure in the
DHW cylinder.
The heating circuits and the brine circuit are also
equipped with safety valves.
Secondary pump
The secondary pump transports the heating water from
the heat pump into the heating system and, in heating
systems with a heating water buffer cylinder, initially
into the buffer cylinder.
Solar circuit pump
In conjunction with solar thermal systems. The solar circuit pump delivers the cooled heat transfer
medium from the indirect coil of the DHW cylinder to
the solar collectors.
Cylinder primary pump
Circulation pump for heating the DHW in the DHW cyl-
inder.
Drinking water filter
A device that removes solids from the water. The
drinking water filter is installed in the cold water pipe
upstream of the DHW cylinder or the instantaneous
water heater.
Evaporator
The evaporator is a heat exchanger that transfers ther-
mal energy to the heat pump. In air/water heat pumps,
it is the thermal energy of the supplied air that is trans-
ferred. In brine/water heat pumps, it is the thermal
energy from the brine.
In air/water heat pumps, cooling of the supplied air can
cause water to condense. This condensate can freeze
on the evaporator. To remove this ice, the evaporator
is automatically defrosted.
Compressor
The compressor is the central component of the heat
pump. The compressor raises the refrigerant to the
temperature level required for the heating mode.
In heat pumps with output-dependent control, the com-
pressor speed can be matched to the required output.
In conjunction with a photovoltaic system, power gen-
erated on site can be used to operate the compressor.
Condenser
The condenser is a heat exchanger that transfers ther-
mal energy from the heat pump to the heating system.
Appendix
Terminology (cont.)
5817913
101
Flow temperature
The flow temperature is the temperature at which the
heating water or coolant enters a system component
such as a heating circuit.
In the information bar on the standard menu, the flow
temperature at which the heating water enters the sys-
tem is displayed, i.e. the temperature at which it leaves
the heat pump.
Heat pump cascade
A heat pump cascade is a system with multiple heat
pumps.
In a heat pump cascade, each heat pump has its own
control unit. The overall system is controlled and moni-
tored by the control unit of the lead heat pump.
Weather-compensated heating/cooling mode
See "Heating mode/cooling mode".
Domestic ventilation
See "Controlled domestic ventilation".
Time program
In the time programs, you specify what your heating
system should do at what time.
Operating status
The operating status indicates how a component of
your heating system is being operated.
For example, the operating statuses for central heating
have different temperature levels.
The times for the operating status changeover are
defined when the time programs are set.
DHW circulation pump
The DHW circulation pump transports the DHW
around a loop line between the DHW cylinder and the
draw-off points (e.g. hot tap). This ensures that hot
water is rapidly available at the draw-off points.
Two-stage heat pumps
Two-stage heat pumps have 2 compressors. This
increases total output.
The two compressors may be installed in a single heat
pump casing or in 2 adjacent heat pump casings.
Appendix
Terminology (cont.)
5817913
102
To be entered by the contractor
Heat pump Vitocal
Type
Air/water heat pump =
Air/water heat pump with indoor and outdoor units
Outdoor unit 230 V~ =
Outdoor unit 400 V~ =
Brine/water heat pump =
Water/water heat pump =
Heat pump compact appliance / =
Two-stage heat pump / =
Heat pump with output control / =
Heat pump cascade =
System equipment level
Ice store and solar air absorber =
Heating circuits = HC1
= HC2
= HC3
Cooling circuits
Note
Multiple cooling circuits are possible only on systems with a heating
water/coolant buffer cylinder.
If multiple cooling circuits are installed, a separate cooling circuit is not
possible.
= HC1
= HC2
= HC3
= SKK
Cylinder
Integral DHW cylinder =
Separate DHW cylinder
With 1 temperature sensor, top =
With 2 temperature sensors, top and bottom =
Buffer cylinder
Heating water buffer cylinder =
Heating water/coolant buffer cylinder =
Electric booster heater
Instantaneous heating water heater =
Immersion heater (in the DHW cylinder) =
External heat generator, e.g. oil or gas boiler =
Ventilation unit
Vitovent 200-C =
Vitovent 200-W =
Vitovent 300-C =
Vitovent 300-F =
Vitovent 300-W =
Solar thermal system for DHW heating =
Swimming pool =
Appendix
System equipment and functions
5817913
103
Functions
Active cooling mode =
Utilisation of power generated on site (in conjunction with a photovolta-
ic system)
=
Noise reduction / =
Smart Grid =
External control =
Explanation of symbols: See page 8.
Information on disposal
Disposal of packaging
You heating contractor will dispose of the packaging of
your Viessmann product.
DE: Packaging waste is channelled for recycling to a
certified disposal contractor in line with statutory
regulations.
AT: Packaging waste is channelled for recycling to a
certified disposal contractor in line with statutory
regulations. Use the ARA statutory disposal sys-
tem (Altstoff Recycling Austria AG, licence num-
ber 5766).
Final decommissioning and disposal of the heating system
Viessmann products can be recycled. Components
and fluids from your heating systems are not part of
ordinary domestic waste.
Please contact your heating contractor in connection
with the correct disposal of your old system.
DE: Operating fluids (e.g. heat transfer medium) can
be disposed of at municipal collection points.
AT: Operating fluids (e.g. heat transfer medium) can
be disposed of at municipal collection points
(ASZ).
Appendix
System equipment and functions (cont.)
5817913
104
A
Absence
Central heating........................................................13
Mechanical ventilation.............................................13
Acknowledging messages..........................................56
Active cooling mode..................................... 14, 89, 103
Enabling/blocking.................................................... 40
Explanation............................................................. 97
Factory setting.........................................................12
Air/water heat pump..................................................... 9
With separate indoor/outdoor units........................... 9
Air/water heat pumps
Quieter operation.................................................... 14
Air changes.......................................................... 10, 11
Air flow rate................................................................ 96
Ambient temperatures................................................ 11
Appliances types.......................................................... 8
B
Bathroom switch...................................................10, 45
Blocking
Active cooling mode................................................ 40
Electric booster heater............................................ 39
Blocking time..............................................................64
Booster heater, electric
Explanation............................................................. 90
For central heating.................................................. 39
Brief instructions...................................................15, 16
Brightness, setting......................................................50
Brine/water heat pump............................................... 10
Brine temperature...................................................... 54
Buffer cylinder.............................................. 14, 98, 102
Factory settings.......................................................12
Operating status................................................28, 29
Time phases............................................................27
Time program..........................................................27
Bypass........................................................... 43, 95, 98
C
Calling up
Daily log.................................................................. 54
Call-up
Note, warning, fault message..................................56
Operating states, temperatures, information...........53
Screed drying.......................................................... 54
Carbon dioxide concentration.................................... 96
Casing, cleaning.........................................................67
Central heating
Symbol.................................................................... 16
With electric booster heater.................................... 39
Central heating/central cooling
Comfort................................................................... 14
Energy saving......................................................... 13
Factory setting.........................................................12
Operating program............................................ 21, 26
Room temperature.................................................. 26
Stopping.................................................................. 31
Time phases............................................................27
Time program..........................................................27
Cleaning
Air/water heat pumps.............................................. 66
Air/water heat pumps with plastic surface...............66
Brine/water heat pumps.......................................... 66
Casing..................................................................... 67
Filters...................................................................... 67
Heating system....................................................... 66
Kitchen extract air vent............................................68
Mechanical ventilation system................................ 67
Programming unit....................................................66
Supply air/extract air vents......................................67
Cold rooms.................................................................62
Comfort (tips)............................................................. 14
Comfort function, intensive mode...............................45
Commissioning.....................................................12, 61
Compressor..............................................................100
Contrast, setting......................................................... 50
Controlled mechanical ventilation.............................. 95
Starting....................................................................42
Control levels............................................................. 16
Controls......................................................................60
Controls locked out.................................................... 64
Control strategy for power generated on site............. 48
Control system........................................................... 19
Control unit, opening.................................................. 15
Cooling
Comfort................................................................... 14
Energy saving......................................................... 13
Factory setting.........................................................12
Operating status......................................................27
Cooling circuit
Explanation............................................................. 94
Information.............................................................. 53
Symbols.................................................................. 16
Cooling circuits
Naming....................................................................50
Cooling curve....................................................... 13, 14
Changing.................................................................30
Setting..................................................................... 29
Slope/level...............................................................29
Cooling curve/heating curve.......................................92
Cooling function................................................... 40, 97
Cooling limit................................................................94
Cooling mode....................................................... 14, 98
Active cooling.................................................... 40, 89
Explanation............................................................. 91
Cursor key..................................................................16
Cylinder...................................................................... 66
Cylinder primary pump............................................. 100
D
Daily log..................................................................... 54
Date/time
Factory setting.........................................................13
Setting..................................................................... 51
Day temperature........................................................ 18
Default setting............................................................ 12
Defrost functions........................................................ 96
Delivered condition.....................................................12
Keyword index
Keyword index
5817913
105
DHW circulation pump............................................. 101
Factory setting...................................................12, 37
Operating status......................................................37
Time phases............................................................37
Time program..........................................................37
DHW cylinder........................................................... 102
DHW heating
Comfort................................................................... 14
Energy saving......................................................... 13
Factory setting.........................................................12
Information.............................................................. 53
Once only................................................................ 14
Operating program............................................ 21, 35
Operating status......................................................36
Outside the time program........................................37
Stopping.................................................................. 37
Time phases............................................................35
Time program..........................................................35
With electric booster heater.................................... 39
DHW temperature
Higher......................................................................35
Setting..................................................................... 35
Standard..................................................................35
Display....................................................................... 60
Contrast, setting...................................................... 50
Controls locked out................................................. 64
Fault........................................................................ 64
Filter checking......................................................... 65
Note.........................................................................64
Power-OFF..............................................................64
Setting brightness................................................... 50
Warning................................................................... 64
Drinking water filter.................................................. 100
Ductwork.................................................................... 95
Dust deposits....... 43, 67, 68, 69, 71, 73, 75, 76, 79, 80
E
Economy mode.......................................................... 13
Ending central heating............................................ 33
Ending ventilation....................................................46
Heating....................................................................32
Symbol.................................................................... 16
Ventilation................................................................46
Electric booster heater....................................... 14, 102
Central heating........................................................39
DHW heating...........................................................39
Explanation............................................................. 90
Factory setting.........................................................12
For central heating.................................................. 39
Operating status......................................................39
Symbol.................................................................... 16
Time phases............................................................39
Time program..........................................................39
Electric immersion heater...........................................90
Electric preheating coil............................................... 96
Enabling
Active cooling mode................................................ 40
Electric booster heater............................................ 39
Ending
DHW heating...........................................................37
Economy mode, central heating..............................33
Economy mode, ventilation..................................... 46
Intensive operation..................................................45
Party mode..............................................................32
Energy saving (tips)................................................... 13
Energy saving function
Economy mode, heating......................................... 32
Economy mode, ventilation..................................... 46
Holiday program................................................33, 46
In long periods of absence...................................... 33
In short periods of absence.....................................32
Energy statement....................................................... 53
Cooling.................................................................... 54
DHW........................................................................54
Heating....................................................................54
Photovoltaic.............................................................54
Enthalpy heat exchanger........................................... 90
Excess power.......................................................13, 49
Extended menu.......................................................... 18
External control.......................................................... 59
External heat generator............................................102
External hook-up.................................................. 23, 64
External program..................................................23, 64
Extract air filter........................................................... 76
Extract air filters
Cleaning.................................................................. 67
Extract air vent........................................................... 95
Cleaning.................................................................. 67
F
Factory setting............................................................12
Factory settings, restoring..........................................52
Fault
Calling up................................................................ 57
Calling up/acknowledging....................................... 56
Clearing...................................................................62
Display.................................................................... 64
Fault message............................................................17
Filter........................................................................... 65
Drinking water....................................................... 100
Extract air valves.....................................................79
Filter box.................................................................... 74
Filter change indicator................................................80
Keyword index
Keyword index (cont.)
5817913
106
Filters
Cleaning............................................................ 67, 72
Cleaning Vitovent 200-W........................................ 72
Cleaning Vitovent 300-C......................................... 74
Cleaning Vitovent 300-W........................................ 77
DHW........................................................................66
Kitchen extract air vent............................................68
Replacing.......................................................... 67, 78
Replacing, Vitovent 200-C................................ 70, 71
Replacing, Vitovent 300-F.......................................76
Replacing Vitovent 200-W.......................................72
Replacing Vitovent 300-C....................................... 74
Replacing Vitovent 300-W.......................................77
Ventilation unit.........................................................69
Vitovent 200-C ventilation unit................................ 69
Vitovent 200-W ventilation unit................................71
Vitovent 300-C ventilation unit................................ 73
Vitovent 300-F ventilation unit.................................75
Vitovent 300-W ventilation unit................................76
Flow temperature..................................................... 101
Frost protection
Factory setting.........................................................13
Operating program.................................................. 22
Frost protection functions...........................................96
Frost protection monitoring............................ 31, 37, 61
Functions..........................................................102, 103
G
Global warming potential............................................81
Glossary..................................................................... 88
H
Heat exchanger..........................................................96
Heating
Comfort................................................................... 14
Energy saving......................................................... 13
Factory setting.........................................................12
Operating status......................................................27
Heating circuit
Explanation............................................................. 94
Information.............................................................. 53
Naming....................................................................50
Symbols.................................................................. 16
Heating circuit pump.................................................. 94
Heating curve....................................................... 13, 14
Changing.................................................................30
Setting..................................................................... 29
Slope/level...............................................................29
Heating curve, changing............................................ 29
Heating curve/cooling curve.......................................92
Heating mode.............................................................98
Explanation............................................................. 91
Reduced..................................................................26
Standard..................................................................26
Heating system
Cleaning.................................................................. 66
Maintenance............................................................66
Heating water/coolant buffer cylinder.................28, 102
Heating water buffer cylinder................. 27, 94, 95, 102
Heat pump
Information.............................................................. 53
Shutting down......................................................... 61
Starting....................................................................61
Symbol.................................................................... 16
Heat pump control unit
Opening...................................................................15
Operating................................................................ 15
Heat pump control unit, operating.............................. 15
Heat pump types.......................................................... 9
Heat recovery.............................................................95
Help menu..................................................................16
Help text..................................................................... 16
Higher DHW temperature...........................................35
Holiday program...................................................13, 23
Cancelling/deleting............................................34, 47
Changing...........................................................34, 47
Switching on......................................................33, 46
Holidays..................................................................... 13
Ventilation................................................................13
Hours run................................................................... 54
Humidity..................................................................... 96
Hydraulic reheating coil..............................................96
I
Ice store................................................................... 102
Imbalance...................................................................89
Immersion heater..................................................... 102
Information
Calling up................................................................ 53
Daily log.................................................................. 54
Information bar........................................................... 17
Inspection...................................................................66
Installation room......................................................... 11
Instantaneous heating water heater...................90, 102
Explanation............................................................. 94
For central heating.................................................. 39
For DHW heating.................................................... 39
Intensive mode
Setting..................................................................... 45
Intensive operation
Ending..................................................................... 45
K
Keys........................................................................... 16
Kitchen extract air vent...............................................68
Kyoto Protocol............................................................81
L
Language, setting.......................................................51
Level
Cooling curve.......................................................... 29
Heating curve.......................................................... 29
M
Mains supply.............................................................. 61
Maintenance...............................................................66
DHW cylinder.......................................................... 66
Heating system....................................................... 66
Maintenance contract.................................................66
Keyword index
Keyword index (cont.)
5817913
107
Manual mode............................................................. 58
Max. flow temperature, heating......................27, 28, 29
Mechanical ventilation..........................................14, 42
Energy saving......................................................... 13
Symbols.................................................................. 16
Mechanical ventilation system............................. 10, 95
Menu
Extended menu....................................................... 18
Help.........................................................................16
Standard menu........................................................17
Structure..................................................................81
Menu language, setting..............................................51
Message
Information/warning/fault.........................................56
Power-OFF..............................................................64
Messages
Symbols.................................................................. 17
Min. flow temperature, cooling................................... 27
Mixer.......................................................................... 98
N
Names for heating circuits..........................................50
Natural cooling........................................................... 97
No hot water...............................................................63
Noise level..................................................................14
Note............................................................................17
Calling up................................................................ 57
Calling up/acknowledging....................................... 56
Display.................................................................... 64
Power-OFF..............................................................64
O
ON/OFF switch...........................................................61
Once only DHW heating.............................................14
Once-only DHW heating
Starting....................................................................37
Operating elements....................................................15
Operating info.............................................................16
Operating principle of the ventilation unit................... 95
Operating procedure.................................................. 19
Operating program..................................................... 16
Explanation............................................................. 89
Frost protection....................................................... 22
Functions.................................................................21
Heating/cooling, DHW.............................................21
Preferred heating/cooling circuit..............................18
Setting, DHW.......................................................... 35
Setting, heating/cooling...........................................26
Setting, standby mode heating/cooling................... 61
Setting ventilation....................................................43
Special.................................................................... 22
Symbols.................................................................. 21
Ventilation................................................................22
Operating states, calling up........................................53
Operating status.................................................24, 101
Buffer cylinder................................................... 28, 29
DHW circulation pump............................................ 37
DHW heating...........................................................36
Electric booster heater............................................ 39
Explanation............................................................. 89
Heating/cooling....................................................... 27
Quieter operation.................................................... 41
Ventilation................................................................44
Outdoor air filter......................................................... 76
Outdoor air filters
Cleaning.................................................................. 67
Outdoor air temperature.............................................44
Outside temperature limits......................................... 12
P
Part of the week......................................................... 24
Party mode.................................................................14
Ending..................................................................... 32
Symbol.................................................................... 16
Passive house.......................................... 10, 11, 65, 96
Photovoltaic system............................................. 13, 48
Power failure.............................................................. 13
Power-OFF
Explanation............................................................. 91
Message..................................................................64
Power supply utility.................................................... 64
Preferred heating/cooling circuit.................................17
Operating program.................................................. 18
Room temperature.................................................. 18
Setting..................................................................... 51
Product information...................................................... 9
Programming unit.......................................................15
Pump
Cylinder heating.................................................... 100
DHW circulation.................................................... 101
Heating circuit......................................................... 94
Secondary circuit...................................................100
Solar circuit........................................................... 100
Q
Quieter operation....................................................... 14
Operating status......................................................41
Time phases............................................................41
Time program..........................................................41
R
Reduced heating mode
Explanation............................................................. 91
Reduced noise operation
Explanation............................................................. 91
Reduced room temperature................................. 26, 98
Refrigerant................................................................. 81
Reheating coil............................................................ 96
Remaining time, screed drying...................................55
Reset..........................................................................52
Return temperature.................................................... 98
Rooms
Too cold...................................................................62
Too warm.................................................................63
Keyword index
Keyword index (cont.)
5817913
108
Room temperature..................................................... 13
Factory setting.........................................................12
For reduced heating mode...................................... 26
For standard heating mode..................................... 26
Preferred heating/cooling circuit..............................18
Reduced..................................................................98
Setting, reduced...................................................... 26
Setting, standard..................................................... 26
Standard..................................................................98
Temporarily adjusting.............................................. 31
Ventilation................................................................43
Room temperature..................................................... 14
Room temperature-dependent................................... 91
S
Safety valve..............................................................100
Screed drying....................................................... 22, 54
Screensaver......................................................... 16, 19
Secondary pump...................................................... 100
Separate cooling circuit..............................................94
Service indicator, filter................................................ 80
Setting
Active cooling mode................................................ 40
Brightness............................................................... 50
Contrast...................................................................50
Date/time.................................................................51
DHW temperature................................................... 35
Economy mode, heating......................................... 32
Economy mode, ventilation..................................... 46
Electric booster heater............................................ 39
Heating curve/cooling curve....................................29
Holiday program......................................................46
Intensive mode........................................................45
Language................................................................ 51
Names for heating circuits.......................................50
Operating program, DHW....................................... 35
Operating program, heating/cooling........................26
Operating program, ventilation................................43
Preferred heating/cooling circuit..............................51
Quieter operation.................................................... 41
Room temperature, ventilation................................ 43
Start optimisation.................................................... 36
Stop optimisation.....................................................36
Temperature unit..................................................... 51
Time program, DHW............................................... 35
Time program, DHW circulation pump.................... 37
Time program, ventilation........................................44
Time program for buffer cylinder............................. 27
Time program heating/cooling.................................27
Shutting down
Heat pump...............................................................61
Shutting down system................................................ 61
Slope
Cooling curve.......................................................... 29
Heating curve.......................................................... 29
Slope/level, heating curve/cooling curve....................92
Smart Grid..............................................13, 49, 98, 103
Solar air absorber.....................................................102
Solar circuit pump...................................................... 16
Solar energy yield...................................................... 53
Solar thermal system....................................... 100, 102
Information.............................................................. 53
Special system versions.............................................59
Standard DHW temperature.......................................35
Standard heating mode..............................................12
Standard heating mode/cooling mode....................... 91
Standard menu
Changing.................................................................51
Displays and settings.............................................. 17
Operating program.................................................. 18
Standard room temperature.................................... 18
Standard mode...........................................................13
Standard room temperature................................. 26, 98
Preferred heating/cooling circuit..............................18
Standby mode............................................................ 13
Central heating/central cooling, DHW..................... 61
Central heating/central cooling, stopping................ 31
DHW heating, stopping........................................... 37
Operating program.................................................. 22
Starting
Electric booster heater............................................ 39
Frost protection monitoring..................................... 61
Heat pump...............................................................61
Ventilation................................................................42
Start optimisation................................................. 14, 36
Stop optimisation..................................................14, 36
Stopping
Active cooling mode................................................ 40
Central heating/central cooling................................31
DHW heating...........................................................37
Economy mode, central heating..............................33
Economy mode, ventilation..................................... 46
Electric booster heater............................................ 39
Holiday program................................................34, 47
Intensive operation..................................................45
Party mode..............................................................32
Quieter operation.................................................... 41
Ventilation................................................................42
Summertime/wintertime changeover..........................13
Supply air heating...........................................11, 42, 96
Supply air vent........................................................... 95
Cleaning.................................................................. 67
Swimming pool.........................................................102
Symbols....................................................................... 8
General................................................................... 16
Heating circuit/cooling circuit...................................16
Operating program.................................................. 21
Ventilation................................................................16
System equipment................................................... 102
System equipment level........................................... 102
System version
DHW heating...........................................................59
Explanation............................................................. 89
External control....................................................... 59
Keyword index
Keyword index (cont.)
5817913
109
T
Temperature
Calling up................................................................ 53
DHW........................................................................35
Setting..................................................................... 26
Standard room temperature.................................... 18
Ventilation................................................................43
Temperature, individual preferred.............................. 14
Temperature limits
Brine/water heat pumps.......................................... 12
Water/water heat pumps......................................... 12
Temperature unit........................................................ 51
Terminology................................................................88
Time, screed drying....................................................55
Time/date
Factory setting.........................................................13
Setting..................................................................... 51
Time phase deletion................................................... 25
Time phases...............................................................24
Buffer cylinder......................................................... 27
Central heating/central cooling................................27
DHW circulation pump............................................ 37
DHW heating...........................................................35
Electric booster heater............................................ 39
Quieter operation.................................................... 41
Ventilation................................................................44
Time program............................................... 13, 14, 101
Buffer cylinder....................................... 14, 27, 28, 29
Central heating/central cooling................................27
DHW circulation pump............................................ 37
DHW heating...........................................................35
Electric booster heater............................................ 39
Heating/cooling circuits........................................... 14
Hot water.................................................................14
Quieter operation.................................................... 41
Setting............................................................... 23, 25
Ventilation................................................................44
Tips
Comfort................................................................... 14
Energy saving......................................................... 13
U
Underfloor heating......................................................91
Utilisation......................................................................8
Utilisation of power generated on site...................... 103
Energy saving......................................................... 13
Utilising power generated on site............................... 48
Control strategy.......................................................48
V
Vacation............................................................... 13, 33
Ventilation................................................................13
Ventilation...................................................................95
Cleaning.................................................................. 67
Comfort................................................................... 14
Energy saving......................................................... 13
Factory setting.........................................................13
Information.............................................................. 53
Minimum temperature setting..................................44
Operating principle.................................................. 95
Operating program.................................................. 22
Operating status......................................................44
Room temperature.................................................. 43
Setting the operating program.................................43
Starting....................................................................42
Symbols.................................................................. 16
Time phases............................................................44
Time program..........................................................44
With heat recovery.................................................. 95
Without heat recovery....................................... 43, 95
Ventilation heating circuit................................11, 42, 96
Ventilation level.......................................................... 96
Temporarily increasing............................................ 45
Ventilation unit........................................ 10, 11, 96, 102
Opening.......................................................72, 75, 77
Vitovent 200-C........................................................... 10
Filter replacement................................................... 69
Vitovent 200-W...........................................................10
Filter replacement................................................... 71
Vitovent 300-C........................................................... 10
Filter replacement................................................... 73
Vitovent 300-F............................................................ 11
Filter replacement................................................... 75
Vitovent 300-W...........................................................11
Filter replacement................................................... 76
W
Warning...................................................................... 17
Calling up................................................................ 57
Calling up/acknowledging....................................... 56
Display.................................................................... 64
Water
Too cold...................................................................63
Too hot.................................................................... 63
Water/water heat pump.............................................. 10
Weather-compensated heating/cooling mode............91
Wintertime/summertime changeover......................... 13
Keyword index
Keyword index (cont.)
5817913
110
5817913
111
5817913
112
Your contact
Contact your local contractor if you have any questions about your system or wish to arrange maintenance or
repair work. You can find local contractors on the internet at www.viessmann.de.
Viessmann Limited
Hortonwood 30, Telford
Shropshire, TF1 7YP, GB
Telephone: +44 1952 675000
Fax: +44 1952 675040
E-mail: info-uk@viessmann.com
Viessmann Climate Solutions SE
35108 Allendorf / Germany
Telephone: +49 6452 70-0
Fax: +49 6452 70-2780
www.viessmann.com
5817913 Subject to technical modifications.
10


Need help? Post your question in this forum.

Forumrules


Report abuse

Libble takes abuse of its services very seriously. We're committed to dealing with such abuse according to the laws in your country of residence. When you submit a report, we'll investigate it and take the appropriate action. We'll get back to you only if we require additional details or have more information to share.

Product:

For example, Anti-Semitic content, racist content, or material that could result in a violent physical act.

For example, a credit card number, a personal identification number, or an unlisted home address. Note that email addresses and full names are not considered private information.

Forumrules

To achieve meaningful questions, we apply the following rules:

Register

Register getting emails for Viessmann VITOTRONIC 200 at:


You will receive an email to register for one or both of the options.


Get your user manual by e-mail

Enter your email address to receive the manual of Viessmann VITOTRONIC 200 in the language / languages: English as an attachment in your email.

The manual is 3.87 mb in size.

 

You will receive the manual in your email within minutes. If you have not received an email, then probably have entered the wrong email address or your mailbox is too full. In addition, it may be that your ISP may have a maximum size for emails to receive.

Others manual(s) of Viessmann VITOTRONIC 200

Viessmann VITOTRONIC 200 User Manual - German - 112 pages

Viessmann VITOTRONIC 200 User Manual - Dutch - 112 pages


The manual is sent by email. Check your email

If you have not received an email with the manual within fifteen minutes, it may be that you have a entered a wrong email address or that your ISP has set a maximum size to receive email that is smaller than the size of the manual.

The email address you have provided is not correct.

Please check the email address and correct it.

Your question is posted on this page

Would you like to receive an email when new answers and questions are posted? Please enter your email address.



Info