Carrier 38MGRBQ18B-3 Service Manual page 53

38MGRBQ: Service Manual
E5/ PC 10/PC 11/PC 12 (Over-voltage or under-voltage protection) diagnosis and solution (Cont)
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
Remark:
Measure the DC voltage
between + and - port. The
normal value should be
190V~250V.
53
IPM board (for
2-zone /3-zone)
Bridge rectifier
(for 2-zone/3-zone)
P(or E1/E2/E3)-N(GND)
(for 2-zone/3-zone)
Bridge rectifier
(for 2-zone/3-zone)
IPM Module
(for 2-zone/3-zone)