(1) Remove the control box cover and terminal box cover and install the
connection cord and remote controller cord.
Remote controller cord
Terminal board
(Indoor unit)
Ceiling height
Normal
High ceiling 1
High ceiling 2
Low ceiling
1
–
–
–
–
2.5 - 3.0 m
(8.2-9.8 ft)
3.0 - 3.5 m
(9.8-11.5 ft)
More than 3.5 m
(More than 11.5 ft)
Less than 2.5 m
(Less than 8.2 ft)
2
OFF
ON
OFF
ON
3
OFF
OFF
ON
ON
DIP-SW4
5
ELECTRICAL WIRING
HOW TO CONNECT WIRING TO THE TERMINALS
A. For solid core wiring
(1) Cut the wire end with a wire cutter or wire-cutting pliers, then strip
the insulation to about 25 mm (15/16") of expose the solid wire.
(2) Using a screwdriver, remove the terminal screw(s) on the terminal
board.
(3) Using pliers, bend the solid wire to form a loop suitable for the
terminal screw.
(4) Shape the loop wire properly, place it on the terminal board and
tighten securely with the terminal screw using a screwdriver.
B. For strand wiring
(1) Cut the wire end with a wire cutter or wire-cutting pliers, then strip
the insulation to about 10 mm (3/8") of expose the strand wiring.
(2) Using a screwdriver, remove the terminal screw(s) on the terminal
board.
(3) Using a round terminal fastener or pliers, securely clamp a round
terminal to each stripped wire end.
(4) Position the round terminal wire, and replace and tighten the ter-
minal screw using a screwdriver.
A. Solid wire
Strip 25 mm (15/16")
Insulation
Loop
B. Strand wire
Strip 10 mm (3/8")
Round
terminal
Wire
Screw with
special washer
Round terminal
Terminal
board
Wire
Screw with
special washer
Round
terminal
2. INDOOR UNIT SIDE
WARNING
1 Before starting work, check that power is not being sup-
plied to the indoor unit and outdoor unit.
2 Match the terminal board numbers and connection cord
colors with those of the outdoor unit.
Erroneous wiring may cause burning of the electric
parts.
3 Connect the connection cord firmly to the terminal
board. Imperfect installation may cause a fire.
4 Always fasten the outside covering of the connection
cord with the cord clamp. (If the insulator is chafed,
electric leakage may occur.)
5 Always connect the ground wire.
(2) After wiring is complete, clamp the remote controller cord and con-
nection cord with the cord clamp.
Terminal box cover
Control box cover
Cord clamp
Connection cord
(To the outdoor unit)
Ceiling height setting
Set the DIP switch for the ceiling height according to the table below.
Remote
controller
Terminal board
OUTDOOR
UNIT
Connection
cord
1
2
3
O
F
F
SW 4
1
2
3
O
F
F
SW 1
Indoor unit PC board
Dip switch
(SW4)
Indoor unit
PC board
1. WIRING SYSTEM DIAGRAM
CAUTION
1 If the setting for a low ceiling is selected, the capacity
of the air conditioner decreases slightly.
2 Do not set any switches other than those specified in
this sheet. The air conditioner may not operate correctly
if any switches other than those specified are changed.
CAUTION
1 Be sure to refer the above diagram and do correct field
wiring.
Wrong wiring causes malfunction of the unit.
2 Check local electrical codes and also any specific
wiring instructions or limitation.
1
2
3
L
N
1
2
3
GG
1
2
3
INDOOR
INDOOR UNIT
OUTDOOR UNIT
TERMINAL
DISCON-
NECT
SWITCH
(FIELD
SUPPLY)
Grounding
line
14AWG
(Inter-unit)
Power lines
230/208 V
230/208 V
230/208 V
TERMINAL
Power supply line
Single-phase, 230/208 V
WARNING
Disconnect switch and circuit breaker for over current pro-
tection given in the table below is to be installed between
the indoor unit and the outdoor unit.
15A 240 V - 5A
Disconnect switch
Circuit breaker (or Fuse)
CIRCUIT
BREAKER
OR FUSE
(FIELD
SUPPLY)
Remote controller line
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