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6. Removing the drain pan
(1) Unscrew each set screw on the right and left, and
remove the drain pan pushing it toward the the back.
(See Photo 1.)
PHOTOS
OPERATING PROCEDURE
7. Removing the heat exchanger
(1) Remove the drain pan.
(Refer to 1.)
(2) Remove the Under flange at heat exchanger side.
(16 screws)
(See Photo 8.)
(3) Remove the 4 screws of heat exchanger.( 2 screws
each on left and right)
(See Photo 9.)
(4) Remove the thermistor (RT12) from the holder.
(Refer to 2.)
(5) Remove the thermistor (RT13) from the holder.
(Refer to 3.)
(6) Remove the service panel.( 3 screws )
(See Photo 9.)
(7) Put the heat exchanger down to the fan motor and
pull it toward you.
(See Photo 9.)
Screws
(for heat exchanger)
Screws
(for service panel)
Photo 8.
Photo 9.
Heat exchanger
Under flange
Screws
Service
panel
OC303-A-1.qxp 04.9.21 4:08 PM Page 20
