Service and Parts Manual (2019, 2020, 2021, 2022)
129 PB
COMPONENTS TESTING
24-36k Outdoor Unit Drive Board
12
34
5
6
7
8
9
1
1
1
0
NO. NO.Description Description
1  7 IPM  Module AC Power  Input 
2 
8  EE 
12V&5V  Power 
3  9 IGBT MCU  Component
4  Diodes 10 
5 
Communication  with Upper  System  
11 Rectifier Bridge CPU code
6  Drive Board  Code
1
3
5
2
4
7
6
NO. NO.Description Description
1  5 DC FAN motor AC Power  LIN  
2  6 DC -FAN -SI Reactor  -L1 
3  IPM-SI  7  Reactor  L2 
4  AC Power  NIN  
36K
Drive board
24k
Drive Board
Figure 609










