Mitsubishi Electric MXZ-2C30VA, Service Manual

Page: 126 / 396

126
OPERATING PROCEDURE
PHOTOS
6. Removing the expansion valve
(1) Remove the top panel (Photo 1,2).
(2) Remove the service panel (Photo 1).
(Gas recovery is not required if the unit is pumped down.)
(3) Remove the font panel for removing LEV F (Photo 1).
(4) Remove the electrical parts for removing LEV F (Photo 3).
(5) Remove the LEV coils.
(6) Detach the brazed parts of expansion valves and pipes.
Expansion
valves
Photo 8
LEV coils
Expansion valve F
LEV coil F
Photo 6
Suction
pipe
brazed
part
Discharge
pipe
brazed
part
Compressor nuts (3 places)
5. Removing the compressor and the 4-way valve
(1) Remove the top panel (Photo 1).
(2) Remove the service panel, front panel, and rear panel.
(3) Recover gas from the refrigerant circuit.
NOTE:
Recover gas from the pipes until the pressure gauge
shows 0 kg/cm
2
(0 MPa).
(4) Disconnect the compressor lead wire from terminal of
compressor (U, V, W).
(5) Disconnect the electronic control P.C. board connectors:
CN661, CN663, CN681, CN791, CN792, CN793, CN794,
CN795 (
MXZ-5C100VA, MXZ-5C100VA2
), CN796, CN931,
CN932
Disconnect the noise filter P.C. board connector:
CN912
(6) Remove the screws of the electrical parts, and remove the
electrical parts.
(7) Remove the propeller.
(8) Remove the screws of the separator, and remove the
separator.
(9) Remove the sound proof felt.
(10) Detach the brazed parts of the compressor suction and
discharge pipes.
(11) Remove the compressor nuts and remove the compressor.
(12) Detach the brazed parts of 4-way valve and pipe.
4 way valve
R.V. coil
Brazed parts
Photo 7
OBH584G