Mars Comfort-Aire Century VCD-SA Series Service Manual page 189

Service Manual - VCDxxSA
Procedure
3) Pull out the two blue wires
connected with the four way valve.
(see CJ_ODU_PCB_006-3 )(for heat
pump models)
4) Pull out connectors of the condenser
coil temp. sensor(T3),outdoor
ambient temp. sensor(T4) and
discharge temp. sensor(TP). (see
CJ_ODU_PCB_006-3 )
5) Disconnect the electronic expansion
valve wire. (see Fig CJ_ODU_
PCB_006-3 )(for some models)
6) Remove four screws and unfix
the 3 hooks and then remove the
main control board. (see CJ_ODU_
PCB_006-3 )
7) Disconnect the connector for
outdoor DC fan from the IPM board.
(see CJ_ODU_PCB_006-3 )(for some
models)
8) Remove the connector for the
compressor. (see CJ_ODU_PCB_006-
3 )
9) Remove the connector for the PFC
Inductor. (see CJ_ODU_PCB_006-3 )
10) Pull out 3 connectors between IPM
board and main control board.(see
CJ_ODU_PCB_006-3 )
11) Remove two screws and unfix the
4 hooks and then remove the IPM
board. (see CJ_ODU_PCB_006-3 )
Note: This section is for reference only. Actual unit appearance may vary.
Illustration
connect to IPM board
Main control board
Outdoor Unit Disassembly 20

PFC Inductor
T3&T4
AC fan
4-way valve
IPM board
CJ_ODU_PCB_006-3

Compressor
DC fan
connect to main borad