Installation Procedure - Zehnder Rittling Option Box V2 Installer Manual

2.6

Installation procedure

Be aware of electromagnetic interference (EMC)
during installation.
■ For the signal cables, use a cable with the fol-
lowing requirements:
- Maximum length: 50m
- Recommended Ø: 0.60mm
- Minimum Ø: 0.25mm
- Maximum Ø: 1.00mm
■ Make sure there is a barrier (e.g. a separate
channel or compartment) or minimum distance
of 150 mm between power cables (e.g. 230V)
and cables susceptible to interference (e.g.
control, low voltage, interface, LAN, digital or
analogue signal);
■ If interfering power cables and cables suscep-
tible to interference need to intersect each
other, make sure that this occurs perpendicu-
larly;
■ For the power cables, use the wide openings
to the right with strain relief.
■ For the signal cables, use the narrow openings
to the left.
These measures will minimise the EMC
disturbance as much as possible and will provide
the best communication.
1
Install the ventilation unit as described
in its own documentation.
When the ventilation unit is already
installed: disconnect the power to
the ventilation unit and access the
ComfoNet connectors.
4
Example ancillaries
Install the necessary ancillaries as
instructed in their associated manuals.
2
Only available in Switzerland
5 Not applicable to Option Box V2 Lite
2
2
2
2
Connect the data cable to a non-
connected ComfoNet plug-in
connection on the ventilation unit and
device:
a. 12 Vdc: Red
b. GND: Black
c. CAN_H: Yellow
d. CAN_L: White
5
Connect the device to the mains
voltage if one of the following
ancillaries are connected:5
■ ComfoHood
■ ComfoFond-L pump;
■ Sub-soil heat exchanger valve.
Signal cable
Bathroom switch
External filter error input
Standby switch
ComfoHood temperature sensor2
ComfoHood switch2
Error contact
ComfoFond-L Q temperature sensor
Post-heater temperature sensor
Post-heater control
0-10V input
ComfoNet cable
Power cable5
ComfoHood valve2
ComfoFond-L Q pump
Sub-soil heat exchanger valve
Mains power cable
3
1 2 3
6
2 valve;
Mount the device to the wall, with the 4
delivered screws, next to the ventilation
unit.
Mark out holes before drilling.
It is not permitted to use the Option
Box mounting holes as drilling
templates.
Close the device and commission the
connected ancillaries as instructed in
their associated manuals or in the next
chapters.
EN - 23