Gree Versati III Owner's Manual page 45

MONOBLOC TYPE
CN31 Signals 1, 2, 3, 4, power supply 5
CN18 Interface to the variable-frequency water pump
CN19 Interface to the variable-frequency water pump
CN15 20K temperature sensor (inlet water)
CN15 20K temperature sensor (outlet water)
CN15 20K temperature sensor (refrigerant liquid line)
CN16 20K temperature sensor (refrigerant vapor line)
CN16 10K temperature sensor (leaving water for the auxiliary electric heater)
CN16 20K temperature sensor (reserved)
CN8 15K temperature sensor (room) (CN5)
CN9 10K temperature sensor (room) (CN6)
CN7 Temperature sensor
CN6 Temperature sensor (CN9)
CN5 Temperature sensor (CN8)
CN20 Thermostat
CN21 Detection to welding protection for the auxiliary electric heater 1
CN22 Detection to welding protection for the auxiliary electric heater 2
CN23 Detection to welding protection for the water tank electric heater
CN24 Door-guard detection
CN25 Flow switch
CN26 Reserved
CN1 485-112V 4-pin
CN2 485-1communiction without12V 4-pin
CN3 485-2 communication without 12V 3-pin
CN4 485-2 communication with 12V 4-pin
PWR1
DC-M OTORO1
DC-M OTORO
4V
AC-L AC-N
F1
HEAT
VA-1
41
FB FA
T-SE NSOR2
CN5
T-SE NSOR1
Air-to-water Heat Pump
H_PRES S
CN7
CN8
CN9
COM- ES PE1
COM- ES PE2
LPP
HPP
CN2
T-SE NSOR3