Mitsubishi Electric SUZ-KA09NA2 Service Manual page 33

OPERATING PROCEDURE
Photo 4
2. Removing the inverter assembly, inverter P.C. board
(1) Remove the cabinet and panels. (Refer to 1.)
(2) Disconnect the lead wire to the reactor and the following
connectors:
<Inverter P.C. board>
CN721 (R.V. coil)
CN722 (Defrost heater and heater protector) (SUZ-KA09/
12/15NAH2)
CN931, CN932 (Fan motor)
CN641 (Defrost thermistor and discharge temperature ther-
mistor)
CN643 (Ambient temperature thermistor)
CN644 (Outdoor heat exchanger temperature thermistor)
CN724 (LEV)
(3) Remove the compressor connector (CN61).
(4) Remove the screws fixing the heat sink support and the
separator.
(5) Remove the fixing screws of the terminal block support and
the back panel.
(6) Remove the inverter assembly.
(7) Remove the screw of the ground wire and screw of the ter-
minal block support.
(8) Remove the heat sink support from the P.C. board support.
(9) Remove the screw of the inverter P.C. board and remove the
inverter P.C. board from the P.C. board support.
3. Removing R.V. coil
(1) Remove the cabinet and panels. (Refer to 1.)
(2) Disconnect the following connectors:
<Inverter P.C. board>
CN721 (R.V. coil)
(3) Remove the R.V. coil.
OCH699A
Screws of the
conduit cover
33
PHOTOS/FIGURES
Photo 5
Photo 6
Screws of the heat sink
support and the separator
Photo 7
Heat sink
Heat sink support
P.C. board
support
Screw of the
inverter P.C. board
Screw of the
conduit plate
Screws of the terminal block
support and the back panel
Screw of the
Terminal block
support
Terminal
block
support
Screw of the
ground wire