29
29
7. Removing the pipe temperature thermistor/liquid (TH2)
and condenser/evaporator temperature thermistor (TH5)
(1) Remove the panel. (Refer to step 3)
(2) Remove the drain pan. (Refer to step 6)
(3) Disconnect the indoor coil thermistor 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 thermistor/liquid (TH2)
(6) Remove the connector (CN21) from the indoor controller
board, and disconnect the pipe temperature thermistor/liquid.
Condenser/evaporator temperature thermistor (TH5)
(6) Remove the connector (CN29) from the indoor controller
board, and disconnect the condenser/evaporator temperature
thermistor.
6. Removing the drain pan
(1) Remove the panel. (Refer to step 3)
(2) Remove the room temperature thermistor 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 step 2)
5. Removing the room temperature thermistor (TH1)
(1) Remove the panel. (Refer to step 3)
(2) Pull out the room temperature thermistor 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 thermistor.
Connectors
Screw
Screw
Screw
Screw
Room
temperature
thermistor
(TH1)
Drain pan
Control box
Fan guard
Drain plug
Photo 5
Control box
Pipe temperature
thermistor/liquid (TH2)
Condenser/evaporator
temperature thermistor (TH5)
4. Removing the electrical parts
(1) Remove the 2 screws and the control box cover.
<Electrical parts in the control box>
• Indoor controller board (I.B)
• Terminal block (TB4)
• Indoor power board (P.B)
Photo 4
Photo 3
Indoor power board (P.B)
Terminal block
(TB4)
Indoor controller board
(I.B)
Photo 4
OPERATING PROCEDURE
PHOTOS & ILLUSTRATIONS