Gree GUD71P/A-T - Page 36

GREE U-Match 5 SERIES UNIT SERVICE MANUAL
31
Model: GUD100W/NhA-T, GUD125W/NhA-T, GUD140W/NhA-T,
GUD100W/NhA-X, GUD125W/NhA-X, GUD140W/NhA-X, GUD160W/NhA-X:
Mainboard
No.
Printing
Interface
No.
Printing
Interface
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
2WAY
2-way valve
7
FA
Electronic expansion valve
interface
8
FA1
Electronic expansion valve 1
interface
Refrigerant heat dissipation
9
DRED
DRED communication
interface
10
COMM1
Drive communication interface
11
OVC_COMP
Compressor overload
protection interface
12
LPP
System low pressure protection
interface
13
HPP
System high pressure
protection interface
14
T_SENSOR2
2. Outdoor tube temperature
sensor interface
4. Outdoor ambient temperature
sensor interface
6. Discharge temperature sensor
interface
15
T_LAC
Low temperature cooling
temperature sensing
16
COM7
Unit communication interface
17
CN6
GPRS communication
interface
18
DC_MOTOR1
DC_MOTOR2
DC motor output
19
PWR1
310V DC power supply
interface
20
PE
Ground wire interface