5.3 I Wiring diagrams
5.3.1 "Standard" models
L-N-PE 230V-1N-50Hz protected power supply
AF
Digital display
Earth
C1
Compressor condenser
C2
Ventilator condenser
CD
Flow controller
E1
High pressure switch
E2
Low pressure switch
F1
Fuse
KM1
Compressor relay
22
KM2
Ventilator relay
KM3
Auxiliary pump relay
KM4
Complementary relay
M1
Compressor
M2
Ventilator
SD1
Water temperature sensor
SD2
Air temperature sensor
SD3
Defrost sensor
T1
Transformer
1-2-3-4
Terminal for heating priority connection