Zehnder ComfoVar Aero Manuel D'installation Et D'entretien page 52

5.7 Connecting cabling and power supply
Power is supplied to each VM via the ComfoNet RJ45 cable.
There are two ComfoNet RJ45 sockets on each VM. These two ComfoNet RJ45 connections function
identically, so connection errors are excluded.
The complete connection of the volumetric flow control system can only take place if all controlling
components have been installed and terminate at the air volume controller location with a signal cable.
8
1
NO
2
COM
NC
Fire
3
GND
BS
4
GND
5
6
12 Vdc
GND
0-10 V
12 Vdc
GND
0-10 V
12 Vdc
7
GND
0-10 V
12 Vdc
GND
0-10 V
12 Vdc
GND
0-10 V
Fig. 5.8 - Connections CM
52 - EN
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9 10 11 12 13
Pos. Connection
1 0-10V output
2 System Error output
3 Fire Safety input
4 Pulse Switch / Bathroom Switch input
5 Modbus External
6 Modbus Internal
7 0-10V input (5x)
8 ComfoNet
9 ComfoNet
10 ComfoNet-RJ45 for the VMs
11 24 Volt DC SELV power supply
Functional Earth for the 24 Volt DC SELV also used
12
for Modbus
13 230 Volt AC power supply
AC
DC
24-01-2023 11:11 24-01-2023 11:11