OPERATING PROCEDURE
PHOTOS/FIGURES
2. Removing the indoor power P.C. board and the
electrical box
(1) Remove the panel. (Refer to section 1.) Remove the right
corner box.
(2) Disconnect the following connectors:
<Indoor electronic control P.C. board>
CN151 (Vane motor)
CN112 (Indoor coil thermistor)
CN10A (To the indoor power P.C. board)
CN1R1 (Interlock switch)
(3) Unhook the catch on the left side of the control P.C.
board holder. Pull the control P.C. board holder as if
opening the door at 90 degrees. Remove the control P.C.
board holder from the axial rod on the electrical box.
(4) Remove the screw of the V.A. clamp.
(5) Remove the V.A. clamp and the indoor/outdoor connect-
ing wire.
(6) Remove the earth wire connected to the indoor heat
exchanger from the electrical box.
(7) Remove the screw of the electrical cover and remove the
electrical cover.
(8) Disconnect the following connectors:
<Indoor power P.C. board>
CN211 (Indoor fan motor)
CN201 (Terminal block)
CN20A (To the indoor electronic control P.C. board)
(9) Remove the upper catch of the electrical box, and pull
out the electrical box.
To attach the electrical box, pass the wires connecting
the indoor power P.C. board and the indoor electronic
control P.C. board through . Pass the lead wires of
the fan motor through as shown in the Photo 3 so
that it will not be pinched under the electrical box.
39
Photo 2
Photo 3
Power P.C. board
Terminal block
connector CN201
Connector CN20A
(To indoor elec-
tronic P.C. board)
Indoor fan motor
connector CN211
Electrical box
Screw of the
V.A. clamp
Control P.C. board holder
Screw of the
electrical cover
Indoor coil ther-
mistor connec-
tor CN112
Earth wire
Connector CN10A
(To indoor power
P.C. board)
Vane motor
connector CN151
Interlock switch
connector CN1R1
OBH779C