Mitsubishi Electric PURY-P200 Service Handbook page 188

(7) Caution at replacement of inverter parts
(1) Fully check wiring for incorrect and loose connection.
The incorrect or loose connection of the power circuit part wiring like IPM and diode module causes to damage the
IPM. Therefore, check the wiring fully. As the insufficient tightening of screws is difficult to find, tighten them together
additionally after finishing other works. For the wiring of the base for IPM, observe the wiring diagram below carefully
as it has many terminals.
(2) Coat the grease for radiation provided uniformly onto the radiation surface of IPM /diode modules.
Coat the grease for radiation on the full surface in a thin layer, and fix the module securely with the screw for
fastening. As the radiation grease attached on the wiring terminal causes poor contact, wipe it off if attached.
Motor
(Compressor)
Red White Black
U V W
G/A board
- 185 -
IPM
Black
N
Red
P
Capacitor
(C11, C12)