Mitsubishi Electric PLFY-P20VEM-E Technical & Service Manual page 38

OPERATING PROCEDURE
13. Removing the float switch (FS)
(1) Remove the drain pan. (Refer to procedure 10)
(2) Loosen the clamp of the drain pump. (See Photo 15)
(3) Remove the float switch (tapping screw 4×10: 1
screw/1 hook). (See Photo 15)
(4) Remove the float switch base and the lead wire fixing
band. (See Photo 16)
(5) Remove the lead wire from the U shaped portion of the
float switch base. (See Photo 16)
(6) Slide the float switch towards the arrow to remove from
the float switch base.
14. Removing the heat exchanger
(1) Remove the drain pan. (Refer to procedure 10)
(2) Remove the piping cover (tapping screw 4×10: 3
screws).
(3) Remove the coil plate (tapping screw 4×10: 2 screws).
(4) Remove the heat exchanger fixing screws (tapping
screw 4×10: 2 screws).
(5) Remove the coil support (tapping screw 4×10: 1 screw
each)
■ P20–80:
1 coil support (See photo 17)
■ P100, 125: 3 coil supports (See photo 18)
(6) Remove the heat exchanger.
Photo 18
Heat exchanger fixing screws
Piping cover
Coil plate
OCH657
Coil supports
Coil support
fixing screws
Heat exchanger
PHOTOS
Photo 16
Do not hold this floating part
when lifting; Doing so will cause
malfunction.
Photo 17
Coil support fixing screw
Heat exchanger fixing screws
Piping cover Coil plate
38
Float switch
Float switch base
Float switch base
and lead wire fixing
band
U shaped portion of the
float switch base
Coil support
Heat exchanger