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Detail information
No.
22
23
24
25
27
28
29
CN2:HEAT2.Water Tank Auxiliary Heater
Attention: the control port value of the pump actually detected is ON/OFF but not 220-230V control power supply，so
special attention should be paid when installing the water tank auxiliary heater.
CN2:HEAT1.Pipeline Auxiliary Heater
Attention: the control port value of the pump actually detected is ON/OFF but not 220-230V control power supply，so
special attention should be paid when installing the pipeline auxiliary heater.
CN85：The alarm signal output of the unit(ON/OFF signal)
Attention: the control port value of the pump actually detected is ON/OFF but not 220-230V control power supply，so
special attention should be paid when installing the alarm signal output.
discharge temperature switch protection (protection code P0,provent the compressor from over temperature 115℃)
CN71:System electronic expansion valve2.Used for cooling.
CN72:EVI electronic expansion valve.Used for EVI.
CN70:System electronic expansion valve1.Used for heating.
CN61:signal communication port (fault code E2)
CN64:Outdoor fan , controlled by T4.Fan system drive boards communication port.
Fault code 1PP:Fan system A IPM module communication failure.
Fault code 2PP:Fan system B IPM module communication failure.
Fault code 3PP:Fan system C IPM mokule communication failure.
CN28:Modelbus communication port
26
CN64:Compressor system drive boards communication port.
Fault code 1F0:Compressor system A IPM module communication failure.
Fault code 2F0:Compressor system B IPM module communication failure.
CN300:Program burn in port(WizPro200RS programming device).
IC10:
Parameter chip
CN1:temperature sensors input port.
T4: outdoor ambient temperature sensor (10kΩ corresponds to 25ºC, B=4100)
T3A/T3B:pipe temperature sensor of the condenser (10kΩ corresponds to 25ºC, B=4100)
T5:wtater tank temperature sensor (17kΩ corresponds to 50ºC)
T6A:Refrigerant inlet temperature of EVI plate heat exchanger(10kΩ corresponds to 25ºC, B=4100)
T6B:Refrigerant inlet temperature of EVI plate heat exchanger(10kΩ corresponds to 25ºC, B=4100)
30
31
CN1:System pressure sensor(fault code Fb)
29
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