Mitsubishi Electric PLFY-P20VFM-E1 Technical & Service Manual page 27

OPERATING PROCEDURE
3. Removing the electrical parts
(1) Loosen the 2 screws on the control box cover.
(2) Slide the control box cover as indicated by the arrow to
remove.
<Electrical parts in the control box>
• Indoor controller board (I.B)
• Terminal block (TB2)
• Terminal block (TB5)
• Terminal block (TB15)
4. Removing the room temperature thermistor (TH21)
(1) Remove the panel. (Refer to procedure 2)
Room temperature thermistor (TH21) (See Photo 6)
(2) Remove the 2 lead wire cover fixing screws. (See Photo 6)
(3) Open the lead wire cover, then remove the connector cover
from the connector box.
(4) Remove the band that fixes the room temperature thermistor
(TH21) to the connector box.
(5) Remove the room temperature thermistor (TH21) from the
connector box.
(6) Remove the connector (CN20) from the indoor controller
board, and disconnect the room temperature thermistor (TH21).
Note: When fixing the thermistor, make sure to fix it to the con-
nector box using a band.
5. Removing the drain pan
(1) Remove the panel. (Refer to procedure 2)
(2) Remove the room temperature thermistor (TH21). (Refer to
procedure 4)
Connector box (See Photo 7)
(3) Remove the connector box fixing screw.
(4) Slide the connector box as indicated by the arrow 1, then
remove the claw from bell mouth.
Bell mouth (See Photo 7)
(5) Remove the 4 bell mouth fixing screws, then remove the bell
mouth.
Drain pan (See Photo 7)
(6) Remove the 4 drain pan fixing screws, then remove the
drain pan.
OCH617
Photo 4
Photo 5
Terminal block (TB15)
Photo 6
Lead wire cover
Room temperature thermistor (TH21)
Photo 7
Connector box
fixing screw
27 27
PHOTOS
Control box cover
Screws
Indoor controller board (I.B)
Terminal block (TB2)
Terminal block (TB5)
Lead wire cover
fixing screws
Connector cover
Drain pan
fixing screws
1
Bell mouth
fixing screws
Drain pan
fixing screws