Removing The Cabinet; Removing The Inverter Assembly; Removing The Noise Filter P.c. Board; Removing The Relay P.c. Board - Mitsubishi Electric MSZ-G09SV Service Manual

12-3. MUZ-G09SV -
MUZ-G09SV -
OUTDOOR UNIT
OPERATING PROCEDURE

1. Removing the cabinet

(1) Remove the screws fixing the service panel.
(2) Pull down the service panel and remove it from the cabinet.
(3) Remove the screws fixing the cabinet and top panel.
(4) Remove the top panel and cabinet.
Photo 2
Cabinet

2. Removing the inverter assembly

(1) Remove the service panel, top panel and cabinet.
(Refer to 1)
(2) Disconnect the connectors (CN641, CN642, CN601 and
CN724) on the electronic control P.C. board.
(3) Remove the connectors (CN771 and CN721) on the relay
P.C. board.
(4) Remove the screws fixing the inverter assembly.
(5) Remove the compressor connector.
(6) Remove the inverter assembly.

3. Removing the noise filter P.C. board

(1) Remove the service panel, top panel and the cabinet.
(Refer to 1)
(2) Remove all the connectors and the terminals on the noise fil-
ter P.C. board.
(3) Remove the screw of ground wire on the relay panel.
(4) Remove the hook of T.B. support. Then, remove the noise
filter P.C. board.

4. Removing the relay P.C. board

(1) Remove the service panel, top panel and the cabinet.
(Refer to 1)
(2) Remove all the connectors and the terminals on the relay
P.C. board.
(3) Remove the hook of T.B. support. Then, remove the relay
P.C. board.
5. Removing the electronic control P.C. board
(1) Remove the service panel, top panel and the cabinet.
(Refer to 1)
(2) Remove the inverter assembly.
(3) Remove the terminal of diode stack.
(4) Remove all the connectors and the terminals on the elec-
tronic control P.C. board.
(5) Remove the screws fixing the P.B. support.
(6) Pull up the heat sink and remove the electronic control P.C.
board from the relay panel.
(7) Remove the screws fixing the heat sink and the transistor
module.
(8) Remove the electronic control P.C. board from the heat
sink.
MUZ-G12SV -
E1 E1
MUZ-G12SV -
E2 E2
Top panel
Screws of the
service panel
Hooks
Photo 1
Screws of
the cabinet
Photo 3
Photo 4
101
PHOTOS
Screws of the
top panel
Screws of the
inverter assembly
Connector
Screws of the
heat sink
P.B. support
Hooks
Screws
of the
service
panel
T.B.
support