Electrical Wiring; General Precautions On Wiring; Recommended Wire Length And Wire Diameter For Power Supply System - Sanyo 26 series Installation Instructions Manual

5. ELECTRICAL WIRING

5-1. 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
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.

5-2. Recommended Wire Length and Wire Diameter for Power Supply System

You must follow LOCAL ELECTRICAL CODES for wiring.
Outdoor Unit
Model Name (A) Power Supply
AWG #12
CH2672R
Max. length 64 ft.
AWG #10
CH3072R
Max. length 92 ft.
AWG #10
CH3672R
Max. length 92 ft.
AWG #10
CH4872R
Max. length 81 ft.
Model Name (A) Power Supply
AWG #12
C2672R
Max. length 76 ft.
AWG #10
C3072R
Max. length 99 ft.
AWG #10
C3672R
Max. length 99 ft.
AWG #10
C4872R
Max. length 81 ft.
MOP
Trade Size
(Fuse or HACR
of Conduit
type circuit breaker)
3/4 in. 30 A
3/4 in. 35 A (230/208 V)
3/4 in. 35 A (230/208 V)
3/4 in. 40 A
MOP
Trade Size
(Fuse or HACR
of Conduit
type circuit breaker)
3/4 in. 25 A
3/4 in. 30 A (230/208 V)
3/4 in. 30 A (230/208 V)
3/4 in. 35 A
57
(7) Regulations on wire diameters differ from locality
to locality. For field wiring rules, must follow 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 remote control wiring and the inter-unit
control wiring should be wired apart from the
inter-unit power wiring.
G
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 special-
purpose tools are required.
(10) All wiring used must be Class 1.
* AWG = American Wire Gauge
Power Supply Terminal Base
Capacity Max. Wire Diameter
50 A AWG #6
50 A AWG #6
50 A AWG #6
50 A AWG #6
Power Supply Terminal Base
Capacity Max. Wire Diameter
50 A AWG #6
50 A AWG #6
50 A AWG #6
50 A AWG #6
Trade Size
of Conduit
1-1/4 in.
1-1/4 in.
1-1/4 in.
1-1/4 in.
Trade Size
of Conduit
1-1/4 in.
1-1/4 in.
1-1/4 in.
1-1/4 in.