Gree GRS-CP11Pd/NhA-K - Control Board Description & Fault Code

Heat Pump Pool Heater
21
6.3 Control Board Description & Fault Code
6.3.1 Main Control Board
Silk Screen
Introduction
X1
Power supply zero line
K7_3
Load power supply fire wire
K7_4 Water pump fire wire
CN3 Power input
CN33
Base plate electric heating belt (Reserved)
CN55
Piezoelectric heating belt (Reserved)
CN1
Electronic anode feedback input (Reserved)
CN9
Electronic anode power supply (Reserved)
CN50 Water outlet (50 K), water inlet (50 K) temperature sensor
CN7 Water tank (50 K) temperature sensor
CN19 Low pressure sensor (Reserved)
CN99
Water flow switch
CN44
Low pressure switch
CN11
Communication interface of external wire controller
CN6
Communication interface of panel wire controller
CN2 (Reserved)
CN14 Drive communication
CN27
External third-party control
CN53
Remote control