31
OPERATING PROCEDURE
PHOTOS & ILLUSTRATIONS
10. Removing the heat exchanger
(1) Remove the panel. (Refer to procedure 3 )
(2) Remove the drain pan. (Refer to procedure 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 pipe temperature thermistor/liquid and
condenser/evaporator temperature thermistor.
(Refer to procedure 7)
(8) Disconnect the lead wires to the direction of the fan motor.
(9) Remove the 1 coil support screw, the 2 inside coil screws
(See Photo 10), and the 4 outside coil screws (See Photo 9)
from the heat exchanger, and remove the heat exchanger.
9. Removing the drain pump (DP) and drain sensor (DS)
(1) Remove the panel. (Refer to procedure 3 )
(2) Remove the drain pan. (Refer to procedure 6)
(3) Remove the 2 screws fixed to the control box cover, and
remove the control box cover.
(4) Remove the connectors of the (CNP) and the (CN31)
from the indoor controller board.
(5) Remove the 1 screw fixed to the cover, and remove the
cover.
(6) Disconnect the lead wires to the direction of the drain
pump. (See Photo 7)
(7) Remove the 3 screws of the drain pump.
(8) Cut the drain hose band, pull out the drain hose from the
drain pump.
(9) Pull out the drain pump.
(10) Remove the drain sensor and the holder.
Photo 7
Screw
Screws
Drain sensor (DS)
Drain pump (DP)
Drain
hose
Fixing band
Photo 9
Photo 10
Control box
Cover
Screw
Control
box
Photo 8
Screws of
piping cover
Control box
Piping cover
Lead wires
Lead wires
Coil
screws
Heat exchanger
Coil
screws
Coil
support
Coil support screw
OCH569