Mitsubishi Electric MXZ-2C30VA Service Manual page 123

OPERATING PROCEDURE
5. Removing the compressor and the 4-way valve
(1) Remove the top panel (Photo 1).
(2) Remove the service panel, the cabinet, and the back panel
(Photo 1, 2, 3).
(3) Recover gas from the refrigerant circuit.
Recover gas from the pipes until the pressure gauge
NOTE:
shows 0 kg/cm (0 MPa).
2
(4) Disconnect the compressor lead wire from terminal of the
compressor (U, V, W).
(5) Disconnect the electronic control P.C. board connectors:
CN661, CN663, CN681 (MXZ-3C68VA, MXZ-4C71VA),
CN791, CN792, CN793,
CN794 (MXZ-4C71VA), CN795, CN931, CN932
Disconnect the noise filter P.C. board connector:
CN912
(6) Remove the screws of the electrical parts, and remove the
electrical parts (Photo 4).
(7) Remove the propeller (Photo 6).
(8) Remove the screws of the separator, and remove the
separator (Photo 6).
(9) Remove the sound proof felt (Photo 6).
(10) Detach the brazed parts of the compressor suction and dis-
charge pipes.
(11) Remove the compressor nuts and remove the compressor.
(12) Detach the brazed parts of 4-way valve and pipe.
6. Removing the expansion valve
(1) Remove the top panel (Photo 1).
(2) Remove the service panel, the cabinet, and the back panel
(Photo 1, 2, 3).
(Gas recovery is not required if the unit is pumped down.)
(3) Remove the electrical parts for removing LEV E (Photo 4, 7).
(4) Remove the LEV coils.
(5) Detach the brazed parts of expansion valves and pipes.
OBH584G
Photo 7
Photo 8
R.V. coil
Photo 9
LEV coils
123
PHOTOS
R.V. coil
4 way valve
LEV coil E
Expansion valve E
Suction pipe
brazed part
Discharge
pipe brazed part
Compressor nuts
4 way valve
Brazed parts
Expansion
valves