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7. Electrical Wiring
7-1. General Precautions on Wiring
(1)
Before wiring, confirm the rated voltage of the unit
as shown on its nameplate, then carry out the
wiring closely following the wiring diagram.
(2)
Provide a power outlet to be used exclusively for
each unit, and a power supply disconnect and
circuit breaker for overcurrent protection should
be provided in the exclusive line.
(3)
To prevent possible hazards from insulation
failure, the unit must be grounded.
(4)
Each wiring connection must be done in accor-
dance with the wiring system diagram. Wrong
wiring may cause the unit to misoperate or
become damaged.
(5)
Do not allow wiring to touch the refrigerant tubing,
compressor, or any moving parts of the fan.
(6)
Unauthorized changes in the internal wiring can
be very dangerous. The manufacturer will accept
no responsibility for any damage or misoperation
that occurs as a result of such unauthorized
changes.
7-2. Recommended Wire Length and Wire Diameter for Power Supply System
Models
C2432A, CL2432A
C3032A, CL3032A
C3632A, CL3632A
C4232A, CL4232A
*1 Refer to the Wiring System Diagrams (See below diagram) for the meaning of "A", "B".
AWG = American Wire Gauge
NOTE
To access the electrical component box, open the air
intake grille and remove the electrical component box
cover.
7-3. Wiring System Diagram
Outdoor Unit : "C", "CL" models
Single-phase
60 Hz, 208 / 230 V
(B)
*1
Inter-unit
*1
(A)
Power Supply
AGW #14
69 ft. (AWG #12)
101 ft. (AWG #10)
164 ft.
86 ft. (AWG #10)
65 ft. (AWG #10)
38
(7) Regulations on wire diameters differ from locality
to locality. For field wiring rules, please refer to
your LOCAL ELECTRICAL CODES before
beginning. You must ensure that installation
complies with all relevant rules and regulations.
(8) To prevent malfunction of the air conditioner
caused by electrical noise, care must be taken
when wiring as follows:
G The inter-unit control wiring and the remote control
wiring (option) should be wired apart from the inter-
unit power wiring.
G It is recommended that shielding wires or twisted
pair wires be used for the remote control and the
inter-unit control wiring if the air conditioner is
installed where it is exposed to the influence of
electrical and/or electro-magnetic noise.
Power Supply Terminal Base
Time Delay
(Outdoor Unit)
Fuse or
Wiring
Circuit
Capacity
Capacity
25 A
30 A
50 A
35 A
50 A
Disconnect sw
(Field supply)
Indoor Unit
Outdoor Unit
(B)
1
1
2
2
G
G
Ground
4
4
L1
L2
G
S4179694
Max. Wire
Diameter
AWG #6
(A)
Ground
2258_M_I
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