Electrical Wiring; General Precautions On Wiring - Sanyo C4272R Service Manual

1-12 Electrical Wiring

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 accordance
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.
1
Recommended Wire Length and Wire Diameter for Power Supply System
You must follow LOCAL ELECTRICAL CODES for wiring.
Outdoor Unit
2
Model Name (A) Power Supply
CH2672R
Max. length 64 ft.
CH3072R
Max. length 92 ft.
3
CH3672R
Max. length 92 ft.
CH4272R
Max. length 81 ft.
Model Name (A) Power Supply
4
C2672R
Max. length 76 ft.
C3072R
Max. length 99 ft.
C3672R
Max. length 99 ft.
C4272R
Max. length 81 ft.
5
6
Trade Size
of Conduit
AWG #12
3/4 in.
AWG #10
3/4 in.
AWG #10
3/4 in.
AWG #10
3/4 in.
Trade Size
of Conduit
AWG #12
3/4 in.
AWG #10
3/4 in.
AWG #10
3/4 in.
AWG #10
3/4 in.
7) To prevent possible hazards from insulation failure,
the unit must be grounded.
8) To prevent malfunction of the air conditioner caused
by electrical noise, care must be taken when wiring
as follows:
The remote control wiring and the inter-unit
control wiring should be wired apart from the inter-
unit power wiring.
Use shielded wires for inter-unit control wiring
between units and ground the shield on both
sides.
9) If the power supply cord of this appliance is dam-
aged, it must be replaced by a repair shop appointed
by the manufacturer, because specialpurpose tools
are required.
10)All wiring used must be Class 1.
MOP
Power Supply Terminal Base
(Fuse or HACR
type circuit breaker)
Capacity Max. Wire Diameter
30 A 50 A
35 A (230/208 V) 50 A
35 A (230/208 V) 50 A
40 A 50 A
MOP
Power Supply Terminal Base
(Fuse or HACR
type circuit breaker)
Capacity Max. Wire Diameter
25 A 50 A
30 A (230/208 V) 50 A
30 A (230/208 V) 50 A
35 A 50 A
I-98
1. Specifications
* AWG = American Wire Gaug
Trade Size
of Conduit
AWG #6 1-1/4 in.
AWG #6 1-1/4 in.
AWG #6 1-1/4 in.
AWG #6 1-1/4 in.
Trade Size
of Conduit
AWG #6 1-1/4 in.
AWG #6 1-1/4 in.
AWG #6 1-1/4 in.
AWG #6 1-1/4 in.
SM831148
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