18. Troubleshooting
18.1 PCB parts instructions
EMCH-07W/1
PFC&IPM module
6
5
4
3
2
1. Input rectifier bridge port 1
2. Input rectifier bridge port 2
3. PFC inductance port 1
4. P-OUT
5. PFC inductance port 2
6. N-OUT
66
7
8
1
12
11
10
7. PFC control port
8. +18V port
9. IPDU communication port
10. IPM power port N
11. Compressor connection port U/V/W
12. IPM power port P
V.2
9