Electrical Wiring - Sanyo SPW-C1155DXHN8 Technical Data & Service Manual

3. Electrical Wiring

3-1. 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 re-
3-2. Recommended Wire Length and Wire Diameter for Power Supply System Outdoor unit
Outdoor unit
Wire size
SPW-C0705DXHN8 4 mm²
SPW-C0905DXHN8 6 mm²
SPW-C1155DXHN8 6 mm²
SPW-C1305DXHN8 10 mm²
SPW-C1405DXHN8 10 mm²
Indoor unit
Type
K
AD, LD, S, X, T, U, F, FM
D (254, 364, 484)
D (764/964)
GU055XH
GU075XH
GU105XH
Control wiring
(C) Inter-unit (between outdoor and indoor
units) control wiring
0.75 mm² (AWG #18)
Use shielded wiring*
Max. 1,000 m
NOTE
* With ring-type wire terminal.
(A) Power supply
Time delay fuse or
circuit capacity
Max. length
60 m
71 m
58 m
79 m
68 m
(B) Power supply
Time delay fuse or
circuit capacity
2.5 mm²
Max. 150 m 10 – 16A
Max. 130 m 10 – 16A
Max. 60 m 10 – 16A
Max. 50/30 m 10 – 16A
Max. 85 m 10 – 16A
Max. 65 m 10 – 16A
Max. 60 m 10 – 16A
(D) Remote control wiring
0.75 mm² (AWG #18)
Use shielded wiring
Design of W-2WAY ECO-i SYSTEM Unit Specifications
sponsibility for any damage or misoperation that occurs
as a result of such unauthorized changes.
(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 rel-
evant rules and regulations.
(8) To prevent malfunction of the air conditioner caused by
electrical noise, care must be taken when wiring as fol-
lows:
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 damaged,
it must be replaced by a repair shop appointed by the
manufacture, because special purpose tools are re-
quired.
(A) Power supply
Wire size
25 A 4 mm²
30 A or 6 mm²
35 A 6 mm²
40 A 10 mm²
50 A 10 mm²
Max. 500 m
2-23
Time delay fuse or
circuit capacity
Max. length
60 m 25 A
71 m 35 A
58 m 35 A
79 m 50 A
68 m 50 A
(E) Control wiring for group control
0.75 mm² (AWG #18)
Use shielded wiring
Max. 500 m (Total)
(F) Inter-outdoor unit control wiring
0.75 mm² (AWG #18)
Use shielded wiring
Max. 500 m
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