Mitsubishi Electric MXZ-3C24NA Service Manual page 83

OPERATING PROCEDURE
3. Removing the fan motor
(1) Remove the top panel, the service panel, and the front
panel (Refer to 1).
(2) Disconnect the power supply and indoor/outdoor connect-
ing wire.
(3) Disconnect the connector CNF1 on the outdoor control P.C.
board.
(4) Remove the propeller fan.
(5) Remove the fan motor.
4. Removing the compressor and 4-way valve
(1) Remove the top panel, the service panel and the front
panel.
(2) Disconnect the power supply and indoor/outdoor connect-
ing wire, and remove the back panel.
(3) Recover gas from the refrigerant circuit.
NOTE: Recover gas from the pipes until the pressure
gauge shows 0 kg/cm
(5) Disconnect the compressor lead wire from the terminal of
the compressor (U, V, W).
(6) Disconnect the outdoor control P.C. board connectors:
CNF1, CNTH1, CNTH2, CN63H, CN712, CN713, CN714
(MXZ-C·NAHZ), CN791, CN792, CN793 (MXZ-5C42NA,
MXZ-3C24/30NAHZ), CN794 (MXZ-5C42NA),
CN795 (MXZ-5C42NA)
(7) Remove the screws fixing the electrical parts, and remove
the electrical parts (Photo 4).
(8) Remove the propeller fan.
(9) Remove the screws fixing the VB fixture, and remove the
VB fixture.
(10) Remove the screws fixing the separator, and remove the
separator.
NOTE: When installing the separator, insert the tabs of the
heat exchanger into the separator.
(11) Remove the sound proof felt.
(12) Detach the brazed parts of the suction and discharge
pipes (Photo 11).
(13) Remove the nuts of the compressor, and remove the
compressor (Photo 11).
(14) Detach the brazed parts of 4-way valve and pipes.
OBH702A
(0 MPa).
2
Photo 9
Screws of the outdoor fan motor
Propeller
fan
Screws of the outdoor fan motor
Photo 10
4-way valve
Brazed parts
83
PHOTOS
Screw of the
VB fixture
VB fixture
Separator
Sound
proof felt
R.V. coil