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EN
Wire connection
REQUIREMENT
• Connect the wires matching the terminal numbers.
Incorrect connection causes a trouble.
• Pass the wires through the bushing of wire connection
holes of the indoor unit.
• The low-voltage circuit is provided for the remote
control. (Do not connect the high-voltage circuit)
• Remove the cover of the electrical control box by
taking off the mounting screws (3 positions).
• Attach the conduit pipe with a lock nut.
• 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.)
• Mount the cover of the electrical control box without
pinching wires.
* Only at the time of Central control use.
System interconnection wires
and ground wire
1. Strip the wire ends.
System interconnection wire : 0.4” (10 mm)
Ground wire : 0.8” (20 mm)
2. Match the wire colors with the terminal numbers on
the indoor and outdoor units’ 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.
Unit: in (mm)
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.
Control wire hole
Electrical control box cover
Screw
Screw
Conduit
connection
hole
3
B
S
A
4
L
L
Ground screw
Cord clamp
Conduit pipe
System
interconnection
wires and ground
wire
Central control
wire*
(2-core shielded
wire)
Remote
control wire
Cord
clamp
Lock nut
L
1
S
L
2
0.8” (20)
1.2” (30)
0.4” (10)
Ground wire
0.
08
” (2
) or
le
ss
Power supply wires and control
wire
Wiring diagram
▼
Single system
Remote control wiring
• Strip off the wire approx. 0.4” (9 mm) to connect.
• For a single system, use non polarity, 2 core wire for
the remote control wiring. (2 x AWG 20)
• For the details of wiring/installation of the remote
control, refer to the Installation Manual enclosed with
the remote control.
A B
L
1
L
1
L
2
L
2
S
S
208/230-1-60
Indoor unit
Outdoor
unit
Remote
control
Low voltage
High voltage
A
B
A
B
Terminal block
Remote
control
unit
Terminal block for
remote control wiring
of indoor unit
Remote control wire
(Field procurement)
27-EN
28-EN
+00EB99810201_01EN.book Page 14 Wednesday, June 1, 2016 2:52 PM
