Gree GUHD18ND3FO - Page 52

U-Match Series DC Inverter Service Manual
49
Figure 2-7-16
Table 2-7-4 Corresponding interfaces of main board
No.
Interface
1
Evaporator temperature sensor
2
Swing motor
3
Human sensitive
4
Door control
5
Full water detection
6
Interface of light board
7
Communication port of centralized controller
8
MODBUS interface
9
Interface of annunciator live wire
10
ON interface of fresh air valve
11
OFF interface of fresh air valve
12
Interface of annunciator neutral wire
13
Interface of DC motor
14
Main board grounding wire
15
Power live wire
16
Power neutral wire
17
Neutral wire of fresh air valve
18
Water pump interface
19
Live wire of fresh air valve
20
Interface of anion generator
21
Interface of auxiliary heating board
22
Interface of outdoor unit
23
Interface of wired controller
24
Monitor interface
25
Ambient temperature sensor