27
EG
7-5. Electrical Wiring
Connection method
(1)
Connect W1 to the indoor PCB WL connector.
(2)
Connect W3 from the indicator section with W2 from
the operating controller using the relay connector.
Indoor PCB
Operating controller
Relay connector
CN1
CN2
CN1
WL
(CN42)
Indicator section
W1 (1300 mm)
YEL
RED
WHT
BLK
BLU
YEL
PNK
RED
GRY
BLK
BLU
YEL
PNK
RED
GRY
BLK
Fig. 7-7
7-4. Operating Controller Installation
Install the operating controller on the top face of the air intake
section (space between the fan motor and the electrical
component box) (Fig. 7-6).
(1)
Fasten the operating controller to the ceiling panel of
the air intake section with the 2 accessory screws
(4x10).
(2)
Draw the lead wires into the electrical component box
and connect the 4P lead wire to the WL connector
(CN42) on the indoor PCB.
(3)
Connect the indicator section and the operating
controller by 6P connector in the electrical component
box.
For cooling only models:
(4)
Disconnect CN8 connector from indoor P.C.B.
(Fig. 7-4).
CAUTION
• Do not twist the operating controller wires together
with the power supply wires. Doing so can result in
malfunction.
• If noise is induced in the unit power supply, take
appropriate measures, for example installing a noise
filter.
Fig. 7-6
Electrical component box
Operating controller
NOTE
Be sure to remove CN8 connector. If otherwise, the flap
cannot be stopped at a certain position even when the
FLAP button on the remote controller is pressed.
W2
W3
ADDRESS
1 2 3
SENSOR
A/C/RCU
Fig. 7-8
A
AIR CONDITIONER
SET TEMP.
1HR.
TIMER
TEMP.
ON•I / OFF•
MODE
NIGHT
SETBACK
FLAP
FAN SPEED
SELECT
HH
MM
TIME SET
BATTERIES
ϒ
C
ACL
A/C
SENSOR
OFF
ON
CLOCK
TIMER
SELECT
H/P
MODELS
S/C
MODELS
NOTE
If the sensor switch is set to the remote controller side, but
no room temperature data is sent to the main unit for 10
minutes, the sensor is automatically switched to the indoor
unit side. As much as possible, install the remote controller
facing the unit.
7-6. Room Temperature Sensor Setting
The room temperature sensors are built into the indoor unit
and the wireless remote controller. Either of these room
temperature sensors can operate.
Heat pump models
The system is shipped from the factory set to the indoor unit
sensor. To switch to the remote controller sensor, press the
sensor switching button (* mark) on the rear of the remote
controller and check that A/C SENSOR on the LCD display
panel goes out.
Cooling only models
To switch to the remote controller sensor, press the A/C
SENSOR button on the remote controller and check that
the mark on the LCD display panel goes out. (Fig. 7-8).
A/C SENSOR
button