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6 Start-up
10 Installation instructions 0020237057_00
5.1 Polarity
When connecting the eBUS line, there is no need to pay at-
tention to the polarity. If the connection cables are switched
over, communication will not be adversely affected.
5.2 Connecting the radio receiver unit to the
heat generator
1. When opening the electronics box in the heat gener-
ator, proceed as described in the installation instruc-
tions for the heat generator.
2. Connect the eBUS line to the eBUS terminals in the
wall base of the radio receiver unit.
3. Connect the eBUS line to the eBUS terminals in the
heat generator.
5.3 Connecting the radio receiver unit to the
ventilation unit
1. When connecting the radio receiver unit to the ventil-
ation unit, proceed as described in the installation in-
structions for the ventilation unit.
Conditions: Ventilation unit connected to the eBUS without VR 32, Ventil-
ation unit without eBUS heat generator
Connect the eBUS line to the eBUS terminals in the wall
base of the radio receiver unit.
Connect the eBUS line to the eBUS terminals on the
ventilation unit.
Conditions: Ventilation unit connected to the eBUS with VR 32, Ventila-
tion unit with up to two eBUS heat generators
Connect the eBUS line to the eBUS terminals in the wall
base of the radio receiver unit.
Connect the eBUS line to the eBUS of the heat gener-
ator.
Set the address switch for the VR 32 in the ventilation
unit to position 3.
Conditions: Ventilation unit connected to the eBUS with VR 32, Ventila-
tion unit with more than two eBUS heat generators
Connect the eBUS line to the eBUS terminals in the wall
base of the radio receiver unit.
Connect the eBUS line to the common eBUS on the
heat generator.
Determine the highest possible position on the address
switch of the VR 32 for the connected heat generator.
Set the address switch of the VR 32 in the ventilation
unit to the second highest position.
6 Start-up
6.1 Preparatory work for start-up
All the following preparatory work for starting up the system
has been carried out:
The control, radio receiver unit and outdoor temperature
sensor have been installed and wired.
The reception strength of the control and outdoor temper-
ature sensor is 4.
The installation assistant is at the Have the installa-
tion assistants for all system components finished?
Press OK to confirm query.
6.2 Starting up the system
The control's installation assistant takes you through a list of
functions. For each function you should choose the set value
that is best suited to the system being installed.
You must not alter the settings of the functions listed below.
The installation assistant will configure these functions ac-
cording to the values you enter.
6.2.1 Heating curve
In systems with a heat pump, the heat curve for all heating
circuits is 0.6.
In all mixed heating circuits with boilers, the heat curve is
0.6.
In all direct heating circuits with boilers, the heat curve is 1.2.
Setting the heating curve ( Page 17)
6.2.2 Domestic hot water
In systems with heat pumps, the desired temperature of the
domestic hot water is 55 °C.
In systems with heat generators, the desired temperature of
the domestic hot water is 60 °C.
Setting the cylinder set target temperature (domestic hot
water) ( Page 19)
6.2.3 Zone assignment
The installation assistant assigns zones to the control and
the connected remote controls.
Examples of zone assignment:
No remote control: The control is always assigned Zone 1.
One remote control: The remote control is assigned Zone 1,
the control is assigned Zone 2.
Two remote controls: Remote control 1 is assigned Zone 1,
remote control 2 is assigned Zone 2 and the control is as-
signed Zone 3.
The control is always assigned the next highest zone after
the remote controls.
Assigning a zone ( Page 19)
6.2.4 Config.: VR70 addr. 1
The installation assistant has configured the inputs and out-
puts of the VR 70.
Configuring the inputs and outputs of the VR 70 ( Page 15)
10


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