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12-2. MXZ-3B54VA MXZ-3B68VA MXZ-4B71VA
OPERATING PROCEDURE
1. Removing the compressor
(1) Remove the screws of the top panel, and remove the top
panel.
(2) Remove the screws of the service panel, and remove the
service panel.
(3) Recover gas from the refrigerant circuit.
NOTE:
Recover gas from the pipes until the pressure gauge
shows 0 kg/cm
2
(4) Remove the screws of the cabinet, and remove the cabinet.
(5) Remove the screws of the back panel, and remove the back
panel (Photo 3).
(6) Disconnect the compressor lead wire from terminal of the
compressor (U, V, W).
(7) Disconnect the outdoor electronic control P.C. board
connectors:
CN661, CN663, CN681 (MXZ-3B68VA, MXZ-4B71VA),
CN791, CN792, CN793,
CN794 (MXZ-4B71VA), CN795, CN931, CN932
Disconnect the noise filter P.C. board connector:
CN912
(8) Remove the screws of the electrical parts, and remove the
electrical parts (Photo 4).
(9) Remove the propeller.
(10) Remove the screws of the separator, and remove the
separator (Photo 6).
(11) Remove the sound proof felt (Photo 6).
(12) Detach the brazed parts of the compressor suction and dis-
charge pipes (Photo 5).
(13) Remove the compressor nuts and remove the compressor.
2. Removing the electronic control P.C. board
(1) Remove the screws of the sub panel.
(2) Remove the sub panel.
(3) Disconnect all connectors and lead wires on the electronic
control P.C. board.
(4) Remove the electronic control P.C. board.
OBH554D
(0 MPa).
NOTE: Turn OFF power supply before disassembly.
Photo 1
Screws of the cabinet
Photo 2
Screws of the
top panel
Screws of the
cabinet
92
PHOTOS
Screws of the
top panel
Screws of
the cabinet
Screws of
service
panel
Screw of
the cabinet
Screws of
Screws of the
the cabinet
sub panel
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