GREE U-Match 5 SERIES UNIT SERVICE MANUAL
44
Model:
GUD71W/NhA-T, GUD85W/NhA-T
Mainboard:
No. Printing Interface No. Printing Interface
1 JTAG Programming interface 10 2WAY 2-way valve
2 T-LAC
Low temperature cooling temperature
sensing interface
11 HEAT-B Chassis electric heating
3 FA Electronic expansion valve 12 JUMP1 Jumper cap
4 T-SENSOR Temperature sensor 13 DRED DRED
5 OVC-COMP Compressor overload detection 14 COM7
IDU and ODU communication
interface
6 HPP High pressure switch 15 AC-L AC input live wire
7 LPP Low pressure switch 16 N1 AC input neutral wire
8 OFAN DC fan interface 17 PE AC input ground wire
9 4WAY 4-way valve 18 U/V/W Compressor interface