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23Operating manual for the auroMATIC 620 0020094404_00 Controller
5.3.1 Setting the operating mode
By setting the operating mode, you inform the control-
ler about the conditions under which the assigned hea-
ting circuit or hot water circuit is to be controlled.
i
If Holiday is displayed instead of the opera-
ting mode, the holiday programme is active.
When the holiday programme is active, the
operating mode cannot be set.
The following operating modes are possible:
Operating
mode
Effect
Auto The operation of the heating circuits alternates
between the Heating and Energy saving modes in
accordance with a predetermined timer pro-
gramme.
Eco The operation of the heating circuit alternates
between the "Heating" and "Off" modes in
accordance with a preset timer programme.
The heating circuit is switched off during the set-
back period if the frost protection function
(depending on the outside temperature) is not
activated.
Heating The heating is regulated at the daytime set room
temperature.
Energy
saving
The heating circuit is regulated at the nighttime
set room temperature.
Off The heating circuit is off if the frost protection
function (depending on the external temperature)
is not activated.
Operating
mode
Effect
Symbol Meaning
If the symbol is displayed after the Eco or Auto
mode, a time window is active. The heating instal-
lation is producing heat.
If the symbol is displayed after the operating
mode
no time window is active. The heating installation
is in set-back mode.
Table 5.1 Operating modes for heating circuits
Operating
mode
Effect
Auto The commands for charging the DHW cylinder or
for enabling the circulation pump are given accor-
ding to a preset timer programme.
On The charging of the DHW cylinder is constantly
enabled. If required, the cylinder is recharged
immediately and the circulation pump is cons-
tantly in operation.
Off The cylinder is not charged and the circulation
pump is not in operation.
If the temperature in the DHW cylinder falls below
12 °C, the cylinder is reheated to 17 °C (frost pro-
tection).
Table 5.2 Operating modes for the circulation circuit and the
hot water circuit
The procedure for setting the operating mode in the
basic display is explained in the following, using the
cylinder as an example.
Wed 02.12.09 15:43 -3 °C
HK1
Heating 22 °C
Storey 1 Eco 20 °C
Cylinder Auto 60 °C
Solar Auto
>Select operating mode
Turn the right hand knob until the cursor
is
flashing in front of the Auto mode (Cylinder line).
Wed 02.12.09 15:43 -3 °C
HK1 Heating 22 °C
Storey 1 Eco 20 °C
Cylinder
Auto 60 °C
Solar Auto
>Select operating mode
Press the right hand knob.
The operating mode is marked.
Wed 02.12.09 15:43 -3 °C
HK1 Heating 22 °C
Storey 1 Eco
20 °C
Cylinder
Off 60 °C
Solar Auto
>Select operating mode
Turn the right hand knob until the desired operating
mode appears on the display.
Wed 02.12.09 15:43 -3 °C
HK1 Heating 22 °C
Storey 1 Eco 20 °C
Cylinder
Off 60 °C
Solar Auto
VRS 620
Press the right hand knob.
The operating mode is saved and takes effect.
i
If you want to change the operating mode for
further heating and circulation circuits / DHW
cylinders, turn the knob until the cursor
is
positioned in the appropriate line in front of
the mode to be changed. Repeat the steps
described above.
>
>
>
>
Operation 5
25


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