Mitsubishi Electric MXZ-2F33VF4-E1 Service Manual page 232

OPERATING PROCEDURE
6. Removing the compressor and 4-way valve
(1) Remove the service panel, the top panel, the back panel
and the front panel (Refer to section 1).
(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
2
shows 0 kg/cm
(4) Remove the terminal cover, the thermal protector (TRS)
and the discharge temperature thermistor. (Photo 12)
(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,
CN791, CN792, CN793, CN794
(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 soundproof felt.
(12) Detach the brazed parts of the suction pipe and discharge
pipe.
(13) Remove the nuts of the compressor, and remove the
compressor.
(14) Detach the brazed parts of 4-way valve and pipes.
Terminal cover and
Photo 12
the thermal protector (VFHZ2 only)
Compressor nuts
Expansion
valves
OBH790L
(0 MPa).
Discharge pipe
brazed part
Suction pipe
brazed part
LEV coils
PHOTOS/FIGURES
Photo 11
4-way valve
Photo 13
Compressor nuts
232
R.V. coil
Brazed parts
of 4-way valve
and pipes
Discharge pipe
brazed part
Suction pipe
brazed part