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Wire connection
REQUIREMENT
• Connect the wires matching the terminal numbers. Incorrect connection causes a trouble.
• Route the wire through the wire connection port of the indoor unit.
• The low-voltage circuit is provided for the control wire and remote control wire. (Do not connect the high-voltage
circuit.)
1. Loosen the two fixed screws, and remove the cover of electrical control box by sliding in the direction of the
arrow.
2. Attach the conduit pipe to the conduit plate with a lock nut.
3. Connect the power supply wire, control wire and remote control wire to the terminal block of the electrical control
box. Secure the ground wire with the ground screw.
4. Tighten the screws of the terminal block, and fix the wires with cord clamp attached to the electrical control box.
(Do not apply tension to the connecting section of the terminal block.)
5. Mount the cover of the electrical control box without pinching wires.
(Mount the cover after wiring on the ceiling panel.)
Cover of electrical control box
Hook part
Screws
Cord clamp
Control wire
(2-core shielded wire)
Ground screw for
Control wire / Remote
shielded wire
control terminal block
25-EN
Conduit plate
Lock nut
Conduit pipe
Ground screw
Power supply
terminal block
Side D
(Space: 0.33" (8.5 mm))
Insert the wire to Side C.
Side C
(Space: 0.16" (4 mm))
– 13 –
Power supply wires and
ground wire
1. Strip the wire ends.
Power supply wire: 0.4" (10 mm)
Ground wire: 0.8" (20 mm)
2. Match the wire colors with the terminal numbers on
the indoor units' and circuit breakers' terminal blocks
and firmly screw the wires to the corresponding
terminals.
3. Secure the ground wire with the ground screw.
4. Fix the wires with a cord clamp.
0.8" (20)
1.0" (25)
L
L
1
2
0,4" (10)
Ground wire
CAUTION
CAUTION
Firmly tighten the screws of the terminal block.
Keep the wire length as shown in figure below when it
is connected to the terminal block.
Power supply wires and control
wire
Remote control wiring
Strip off approx. 0.4" (9 mm) the wire to be connected.
As the remote control wire has non-polarity, there is no
problem if connections to indoor unit terminal blocks A
and B are reversed.
Control wires
Because a "Wiring box" has little space, a cover of
control wires (2-core shielded wire) should be removed
up to 1.6" (40 mm).
Cord clamp
Unit: in (mm)
Control wires
(2-core shielded wire)
Cover
2.4" (60)
1.6" (40)
Address setup
Set up the addresses as per the Installation Manual
Unit: in (mm)
supplied with the outdoor unit.
Wiring on the ceiling panel
According to the Installation Manual of the ceiling
panel, connect the louver motor connector on the
ceiling panel side and the louver motor connector on
the indoor unit side.
Louver motor
Louver motor connector
connector (Indoor unit)
(Ceiling panel)
Ground screw for
shielded wire
(control wire)
Unit: in (mm)
Shield wire
0.4" (9)
26-EN
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