Mitsubishi Electric PLFY-P20VCM-E2.TH Technical & Service Manual page 24

OPERATING PROCEDURE
5. Removing the room temperature detection (TH21)
(1) Remove the panel. (Refer to 3)
(2) Pull out the room temperature detection from the drain pan.
(3) Remove the 2 screws fixed to the control box cover, and
remove the control box cover.
(4) Remove the connector (CN20) from the indoor controller
board, and disconnect the room temperature detection.
6. Removing the drain pan
(1) Remove the panel. (Refer to 3)
(2) Remove the room temperature detection and the 2 lead
wires held with fastener; wireless controller board relay
connector (9P red) and panel relay connector (10P white).
(3) Remove the 4 screws fixed to the drain pan, and remove
the drain pan.
(4) Remove the fan guard. (Refer to 2)
7. Removing the pipe temperature detection/liquid (TH22)
and pipe temperature detection/gas (TH23)
(1) Remove the panel. (Refer to 3)
(2) Remove the drain pan. (Refer to 6)
(3) Disconnect the pipe temperature detection/liquid or the pipe
temperature detection/gas from the holder.
(4) Remove the 3 screws fixed to the piping cover, and remove
the piping cover. (See photo 9)
(5) Remove the 2 screws fixed to the control box cover, and
remove the control box cover.
Pipe temperature detection/liquid (TH22)
(6) Remove the connector (CN21) from the indoor controller
board, and disconnect the pipe temperature detection/liquid.
Pipe temperature detection/gas (TH23)
(6) Remove the connector (CN29) from the indoor controller
board, and disconnect the pipe temperature detection/gas
with its holder.
8. Removing the fan motor (MF)
(1) Remove the panel. (Refer to 3)
(2) Remove the drain pan. (Refer to 6)
(3) Remove the nut and the washer from the turbo fan, and
remove the turbo fan.
(4) Remove the 2 screws fixed to the control box cover, and
remove the control box cover.
(5) Disconnect the connector of the FAN from the indoor con-
troller board.
(6) Remove the 3 screws fixed to the piping cover, and remove
the piping cover. (See photo 9)
(7) Remove the 6 screws fixed to the flat plate, and remove
the flat plate.
(8) Disconnect the lead wires to the direction of the fan motor,
and remove the 3 nuts of the fan motor.
PHOTOS&ILLUSTRATIONS
Photo 4
Control box
Screw
Room
temperature
detection
(TH21)
Screw
Photo 5
Thermistor
(Pipe temperature
detection/ Liquid)
(TH22)
Photo 6
Nut
Flat plate
Fan
motor
(MF)
Screws
Nuts
24
Connectors
Drain plug
Fan guard
LEV
Control box
Thermistor
(Pipe temperature
detection/ Gas)
(TH23)
Screws
Screws
Screw
Drain pan
Screw
Lead
wires