Mitsubishi Electric CITY MULTI PKFY-WL18NKMU-E Technical & Service Manual page 27

OPERATION PROCEDURE
8. REMOVING THE HEAT EXCHANGER AND LEV
(1) Remove the panel and the corner box. (Refer to procedure 1)
(2) Remove the electrical box (Refer to procedure 3) and the
nozzle assembly (Refer to procedure 4).
(3) Remove the water cut.
(4) Remove the pipe thermistors (Refer to 7.).
(5) Disconnect the connector for ground wire.
(6) Remove 3 screws fixing the left side of the heat exchanger.
(See Photo 10)
(7) Remove the heat exchanger.
9. REMOVING THE ROOM TEMPERATURE THERMISTOR
(1) Remove the panel and corner box. (Refer to procedure 1)
(2) Remove the electrical box covers. (Refer to procedure 2)
(3) Remove the room temperature thermistor.
(4) Disconnect the connector (CN20) on the indoor controller
board.
TCH121
PHOTOS/FIGURES
Photo 12
Heat exchanger
Photo 13
Heat exchanger
Photo 14
27
Water cut
Indoor controller board
Room temp. thermistor
(TH21)