Installation
AWE – 6721835317 (2021/09)
14
Connections to installation module
Fig. 13 Connections to installation module
[I1] External input 1 (energy supplier)
[I2] External input 2
[I3] External input 3
[I4] External input 4 (control unit)
[MD1]Humidity sensor (accessory for cooling mode)
[T0] Flow temperature sensor
[T1] Outdoor sensor
[PC1] Circulation pump, heating circuit
[VW1]Heating / DHW diverter valve (accessory)
[PK2] Relay output for cooling season, 230 V
[VC0] Circulation diverter valve, 230 V output (accessory)
[PW2]DHW circulation pump (accessory, required for cooling
operation)
[1] CAN-BUS to heat pump (I/O PCB)
[2] Alarm buzzer (accessory)
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