Haier GE Connect Series Service Manual page 23

Troubleshooting
Outdoor Unit:
Model: AUH2436ZGDA, AUH4860ZGDA
Main Board
No. Printing
1 AC-L Live wire input
2 AC-N Neutral wire input
3 HEAT_TIE_B Chassis electric heating belt
4 HEAT_TIE_C Compressor electric heating belt
5 4WAY 4-way valve
6 VA Electromagnetic valve interface
7 FA Electronic expansion valve interface
Electronic expansion valve 1 interface
8 FA1
Refrigerant heat dissipation
9 COMM1 Drive communication interface
10 L-PRESS Low pressure sensor interface
Interface No.
11
12
13
14
15
16
17
18
19
20
CONNECT SERIES SERVICE MANUAL
Printing
H-PRESS High pressure sensor interface
LPP System low pressure protection interface
HPP System high pressure protection interface
2. Outdoor tube temperature sensor interface
4. Outdoor ambient temperature sensor
T_SENSOR2
interface
6. Discharge temperature sensor interface
T_LAC Low temperature cooling temperature sensing
COM7 Unit communication interface
CN6 GPRS communication interface
COM-MANUAL Thermostat interface
DC_MOTOR1
DC motor output
DC_MOTOR2
PWR1 310V DC power supply interface
Interface
21