Mitsubishi Electric PKA Series Service Manual page 31

OPERATION PROCEDURE
5. REMOVING THE NOZZLE ASSEMBLY (with VANE
and VANE MOTOR) AND DRAIN HOSE
(1) Remove the front panel (Refer to 2.).
(2) Remove the electrical box cover.
(3) Disconnect the vane motor connector (CN151) on the
indoor controller board.
(4) Remove the corner box.
(5) Pull the nozzle assembly and detach.
(6) Push the fixture and remove the drain hose.
6. REMOVING THE INDOOR FAN MOTOR AND THE
LINE FLOW FAN
(1) Remove the front panel (Refer to 2.) and the corner box
at right lower side.
(2) Remove the electrical box (Refer to 4.) and the nozzle
assembly (Refer to 5.).
(3) Remove the screws fixing the motor bed. (See Photo 9)
(4) Loosen the screw fixing the line flow fan. (See Photo 10)
(5) Remove the motor bed together with fan motor and motor
band.
(6) Release the hooks of the motor band. Remove the motor
band. Pull out the indoor fan motor.
(7) Remove the screws fixing the left side of the heat exchanger.
(See Photo 11)
(8) Lift the heat exchanger, and pull out the line flow fan to the
lower-left.
Photo 11
7. REMOVING THE VANE MOTOR
(1) Remove the nozzle assembly. (Refer to 5.)
(2) Remove the screws of the vane motor unit, and pull out
the vane motor unit.
(3) Remove the screws of the vane motor unit cover.
(4) Remove the vane motor from the vane motor unit.
(5) Disconnect the connector from the vane motor.
8. REMOVING THE LIQUID PIPE THERMISTOR AND
COND/EVA TEMP. THERMISTOR
(1) Remove the front panel. (Refer to 2)
(2) Remove the electrical box cover.
(3) Remove the motor band.
(4) Cut the wiring fixed band.
(5) Remove the liquid pipe thermistor and cond/eva temp. ther-
mistor.
(6) Disconnect the connector (CN44) on the indoor
controller board.
Photo 8
Nozzle assembly
Photo 9
Heat
exchanger
Photo 10
Screw of the
left side of the
heat exchanger
Photo 12
Screws of the vane motor unit cover
Photo 13
Heat exchanger
31
PHOTOS
Electrical box cover (side)
Electrical box cover (top)
Screw (side cover)
Screw (top cover)
Switch board cover
Holder of wireless
controller board
Motor band
Water cover
Screw of the motor bed
Screw of the
line flow fan
Screws of the vane
motor unit
Condenser/evaporator temp.
thermistor (TH5)
Liquid pipe thermistor (TH2)
Screw
(side
cover)