30-EN
29-EN
– 15 –
Wire connection
REQUIREMENT
y
Be sure to connect the wires matching the terminal numbers. Incorrect connection causes a trouble.
y
Be sure to pass the wires through the bushing of wiring connection port of the indoor unit.
y
Keep a margin (Approx. 100 mm) on a wire to hang down the electrical control box at servicing, etc.
y
The low-voltage circuit is provided for the remote controller. (Do not connect the high-voltage circuit)
y
Make a loop on the wire for margin of the length so that the electrical control box can be taken out during
servicing.
1. Remove the cover of the electrical control box by taking off the mounting screws and pushing the hooking
section. (The cover of the electrical control box remains hanged to the hinge.)
2. Connect the power supply wire and remote controller wire to the terminal block of the electrical control box.
3. Tighten the screws of the terminal block, and
fi
x the wires with cord clamp attached to the electrical control box.
(Do not apply tension to the connecting section of the terminal block.)
4. Mount the cover of the electrical control box without pinching wires.
(Mount the cover after wiring on the ceiling panel.)
40
10
10
60
1 2 3
1
2
A B
3
* Cable clamp can be attached on left side.
Wire
type
Speci
fi
cation
Cable clamping
position
Cabtyre
cable
4-core stranded
wire 2.5 mm²
Side D
Cabtyre
cable
4-core stranded
wire 1.5 mm²
Side C
Side D (Space: 8.5 mm)
Side C (Space: 4 mm)
Power supply terminal block
Cord clamp
Remote controller
terminal block
Hinge
Screw
Louver connector
(CN510:White)
Earth wire
Power supply wire
Wiring between indoor unit and outdoor unit
1. Figure below shows the wiring connections between the indoor and outdoor units and between the indoor units
and remote controller. The wires indicated by the broken lines or dot-and-dash lines are provided at the locally.
2. Refer to the both indoor and outdoor unit wiring diagrams.
3. The power of the indoor unit is supplied from the outdoor unit.
Wiring diagram
Single system
Simultaneous twin system
Remote controller
Remote controller wiring
Indoor side
Indoor / Outdoor
connecting wires
Outdoor side
A B
1
1
2
2
3
3
Power supply
Remote controller
Remote controller wiring
Indoor side
Indoor / Outdoor connecting
wires
Outdoor side
A B
1
2
3
A B
1
1
2
2
3
3
Power supply
Indoor
side
Indoor power
inter-unit wiring
Remote controller
inter-unit wiring
* Use 2-core shield wire (MVVS 0.5 to 2.0 mm² or more) for the remote controller wiring in the simultaneous twin
systems to prevent noise problems. Connect both ends of the shield wire to earth leads.
* Connect earth wires for each indoor unit in the simultaneous twin systems.
