34-EN
33-EN
– 17 –
Wire connection
REQUIREMENT
y
Connect the wires matching the terminal numbers. Incorrect connection causes a trouble.
y
Pass the wires through the bushing of wire connection holes of the indoor unit.
y
Keep a margin (Approx. 100 mm) on a wire to hang down the electrical control box at servicing or other
purpose.
y
The low-voltage circuit is provided for the remote controller. (Do not connect the high-voltage circuit)
y
Before performing wiring work in the electrical
control box, remove the cover of the box (
fi
xed
with 6 screws).
y
Remove screw A, and loosen screw B.
y
Pull up the electrical control box cover and then
open it forward.
y
Tighten the screws of the terminal block
fi
rmly,
and
fi
x the wires with the cord clamps attached
to the electrical control box. (Do not apply
tension to the connecting section of the terminal
block.)
y
Mount the cover of the electrical control box
without pinching wires (
fi
xed with 6 screws).
y
Using the attached seal material, seal the wire
connecting port.
Electrical control box cover
Loosen screw B
Remove screw A
Lower plate
When attaching the electrical
control box cover, insert this part
into the inside of the lower plate.
Remote controller wiring
Strip off approx. 9 mm the wire to be connected.
Wiring diagram
A
B
A
B
Terminal block for remote
controller wiring of indoor unit
Remote controller wire
(Locally procured)
Remote
controller
unit
Terminal block
R
(L)
S
(N)
10
10
20
30
Earth wire
Power supply wire
System interconnection wire
and remote controller wires
2 mm or
less
See the
fi
gure on the left for
system interconnection wires
and remote controller wires to
the terminal block.
U
1
U
2
A B
L N
3 4
U
1
U
2
A B
L N
3 4
Cord clamp
Remote controller wires (A, B terminals)
System interconnection wires
(U
1
, U
2
terminals)
Power supply wires
(L, N terminals)
Earth screw
Side D (Space: 8.5 mm)
Side C (Space: 4 mm)
Select side C or D for the power cable clamping
position referring to the following table according to the
cable type and diameter.
* Cable clamp can be attached on either right or left
side.
When twin system are connected, clamp two cables
with one cable clamp.
Wire type
Speci
fi
cation
Cable clamping
position
Cabtyre cable
3-core stranded
wire 2.5 mm²
Side D
Cabtyre cable
4-core stranded
wire 1.5 mm²
Side C
※
3 and 4 terminals is Flow Selector Unit wiring.
After connecting the wire, cut the attached seal material
as the drawing, and stick on the wire connecting port.
Attached seal material
Wire connecting port
Cut