Installing The Outdoor Temperature Sensor - Vaillant sensoCOMFORT VRC 720f Manual De Uso

3 -- Electrical installation, set-up
▶
Install the wall-mounting screws outside of the wet envir-
onment in accordance with the figure.
▶
Fit the radio receiver unit onto the wall-mounting screws.
▶
When opening the electronics box in the heat generator,
proceed as described in the installation instructions for
the heat generator.
▶
Use an extension cable to connect the radio receiver
unit to the eBUS interface in the heat generator's elec-
tronics box in accordance with the figure.
3.4.2 Connecting the radio receiver unit to the
ventilation unit
1. Mount the radio receiver unit on the wall.
2. When connecting the radio receiver unit to the ventil-
ation unit, proceed as described in the installation in-
structions for the ventilation unit.
Condition: Ventilation unit connected to the eBUS without VR 32, Ventila-
tion unit without eBUS heat generator
▶
Connect the radio receiver unit to the eBUS interface in
the ventilation unit's electronics box using an extension
cable.
Condition: Ventilation unit connected to the eBUS with VR 32, Ventilation
unit with up to two eBUS heat generators
▶
Connect the radio receiver unit to the eBUS interface in
the ventilation unit's electronics box using an extension
cable.
▶
Set the address switch for the VR 32 in the ventilation
unit to position 3.
74
6 0
m m
2,6 mm
X24
X100
Condition: Ventilation unit connected to the eBUS with VR 32, Ventilation
unit with more than two eBUS heat generators
▶
Connect the radio receiver unit to the eBUS interface in
the ventilation unit's electronics box using an extension
cable.
▶
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.
3.5

Installing the outdoor temperature sensor

3.5.1 Determining the installation site of the
outdoor temperature sensor
▶
Choose an installation site that generally meets the fol-
lowing requirements:
–
not fully protected from wind
–
not particularly draughty
–
not in direct sunlight
–
not affected by heat sources
–
on a north or north-west facing façade
–
in buildings with up to three floors, it should be loc-
ated two-thirds of the way up the façade
–
in buildings with more than three floors, it should be
fitted between the second and third floor
3.5.2 Requirements for determining the reception
strength of the outdoor temperature sensor
–
The set-up and installation of all system components and
the radio receiver unit (except for the system control and
the outdoor temperature sensor) is complete.
–
The power supply for the entire heating installation is
switched on.
–
The system components are switched on.
–
The individual installation assistants for the different sys-
tem components have been completed successfully.
3.5.3 Determining the reception strength of the
outdoor temperature sensor at the chosen
installation site
1. Observe all the points listed in "Requirements for de-
termining the reception strength of the outdoor temper-
ature sensor (→ Page 74)".
2. Read the operating concept and the operating example
described in the operating instructions for the system
control.
3. Stand next to the radio receiver unit.
Operating and installation instructions sensoCOMFORT 0020288151_00