Mitsubishi Electric PLFY-P20VFM-E1 Technical & Service Manual page 28

OPERATING PROCEDURE
6. Removing the pipe temperature thermistor/liquid (TH22)
and pipe temperature thermistor/gas (TH23)
(1) Remove the panel. (Refer to procedure 2)
(2) Remove the room temperature thermistor (TH21). (Refer to
procedure 4)
(3) Remove the drain pan. (Refer to procedure 5)
Pipe temperature thermistor/liquid (TH22) and pipe tem-
perature thermistor/gas (TH23) (See Photo 8)
(4) Remove the control box cover. (Refer to procedure 3)
(5) Disconnect the thermistor connectors from the CN44 on the
indoor controller board.
(6) Cut the band fixing the thermistor connectors to the fan
motor cable.
(7) Remove the thermistors from the holders on heat exchanger.
Note:
When re-attaching the thermistor connectors to the fan motor
cable, make sure to put the fixed band into the groove. (See
Photo 8-1)
7. Removing the fan motor (MF)
(1) Remove the panel. (Refer to procedure 2)
(2) Remove the room temperature thermistor (TH21). (Refer to
procedure 4)
(3) Remove the drain pan. (Refer to procedure 5)
Turbo fan (See Photo 3)
(4) Remove the nut and washer from the turbo fan.
(5) Remove the turbo fan from the motor shaft.
Fan motor (See Photo 9)
(6) Remove the control box cover. (Refer to procedure 3)
(7) Disconnect the fan motor cable from the CNMF on the
indoor controller board.
(8) Remove the 2 motor lead cover fixing screws, then remove
the motor lead cover.
(9) Loosen the 3 clamps fixing the fan motor cable.
(10) Cut the band.
(11) Remove the 3 nuts and washers, then remove the fan motor.
(12) Remove the 3 motor mounts.
Notes:
1. When re-attaching the motor mount, make sure that the
thicker end faces the motor shaft. (See Photo 10-1)
2. When re-attaching the turbo fan, make sure that the tighten-
ing torque for nuts is 5 N·m or lower.
OCH617
PHOTOS
Photo 8
Pipe temperature
thermistor/Gas (TH23)
Pipe temperature
thermistor/Liquid (TH22)
Photo 8-1
Band
Photo 9
Band
Motor lead
cover
Motor lead
cover fixing
screws
Nut and washer
Photo 10
Fan motor
Motor mounts
28
Fan motor
Band
cable
Fan motor
cable
Motor lead
Clamps
cover fixing
screws
Nuts and
washers
Fan motor
Photo 10-1
Fan motor
Thicker end
Motor mount