Mitsubishi Electric MXZ-2D33VA-E1 Service Manual page 98

OPERATING PROCEDURE
2. Removing the inverter assembly and the inverter P.C.
board
(1) Remove the service panel, the top panel and the cabinet
(Refer to 1).
(2) Disconnect the power supply and indoor/outdoor
connecting wire and remove the back panel (Refer to 1).
(3) Disconnect all connectors and lead wires on the inverter P.C.
board.
(4) Remove the compressor connector (CNMC).
(5) Remove the screws fixing the heat sink support and the sepa-
rator.
(6) Remove the screws of the terminal block support and the
back panel. (Photo 2)
(7) Remove the inverter assembly.
(8) Remove the screw of the earth wire and screws of the termi-
nal block support.
(9) Remove the hooks of the heat sink support and remove the
heat sink support from the P.C. board support.
(10) Remove the screw fixing the inverter P.C. board and remove
the inverter P.C. board from the P.C. board support.
3. Removing the R.V. coil
(1) Remove the service panel, the top panel and the cabinet
(Refer to 1).
(2) Disconnect the power supply and indoor/outdoor
connecting wire and remove the back panel (Refer to 1).
(3) Remove the inverter assembly (Refer to 2).
(4) Remove the R.V. coil.
4. Removing the discharge temperature thermistor,
defrost thermistor and outdoor heat exchanger
temperature thermistor
(1) Remove the service panel, the top panel and the cabinet
(Refer to 1).
(2) Disconnect the power supply and indoor/outdoor connecting
wire and remove the back panel (Refer to 1).
(3) Remove the inverter assembly (Refer to 2).
(4) Pull out the discharge temperature thermistor from its
holder.
(5) Pull out the defrost thermistor from its holder (Photo 7).
(6) Pull out the outdoor heat exchanger temperature thermistor
from its holder (Photo 7).
OBH626B
Photo 4
Screws of the heat sink
support and the separator
Photo 5
Reactor
(ACL2)
P.C. board
Hooks of the
support
heat sink
support
Photo 6
Discharge temperature thermistor (RT62)
98
PHOTOS
Inverter
assembly
Screws of the terminal
block support
Compressor
connector
Screw of the earth wire
Screw of the inverter
P.C. board
Reactor (ACL)
R.V. coil