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20 Wiring diagram for building control technology – circuit board A2 – | UK
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20 Wiring diagram for
building control technology
– circuit board A2 –
A Ventilation unit
A1 Electronic slide-in module
A2 CDV unit control
If the setting “ simple control unit ” is changed to “ digital ”,
the controlled domestic ventilation unit can be controlled
using a switching actuator (e.g. KNX). This allows the
controlled domestic ventilation unit to be integrated in
a building control technology. The actuator’s potential-free
contacts must be configured for switching 12 VDC.
Ethernet USB
A2
A
A1
X10
Digital
RS485
X11
X12
Sensoren
RLS
X13
3.
3S
DS
C
AB
12V
LD2
LD1
S1+
S2-
LD
3
24V
24V
K1 K2
12VDC - Operating display
12VDC - Filter change display
12VDC - Fault message
Ventilation level
K1 K2
Off*
Reduced ventilation
Nominal ventilation
Intensive ventilation Off
On
Off
On
Off
Off
On
On
* In the "Ventilation level Off blocked"
setting, the device runs in the humidity
protection ventilation level.