Electrical Wiring; General Precautions On Wiring; Recommended Wire Length And Wire Diameter For Power Supply System - Sanyo SPW-C0705DZH8 Technical Data 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 cir-
cuit 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.
1

3-2. Recommended Wire Length and Wire Diameter for Power Supply System

Outdoor unit
2
SPW-C0705DZH8
SPW-C0905DZH8
SPW-C1155DZH8
SPW-C1305DZH8
SPW-C1405DZH8
3
Indoor unit
Type
K
4
A, L, S, X, XM, T, U, US, F, FM
D (254, 364, 484)
D (764)
D (964)
GU055XH
5
GU075XH
GU105XH
Control wiring
(C) Inter-unit (between outdoor and
indoor units) control wiring
6
2
0.75 mm (AWG #18)
Use shielded wiring*
Max. 1,000 m
7
NOTE
* With ring-type wire terminal.
8
(A) Power supply
Time delay fuse or
circuit capacity
Wire size Max. length
6 mm 2 92 m
6 mm 2 70 m
6 mm 2 57 m
10 mm 2 79 m
10 mm 2 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 m 10 – 16A
Max. 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 mm
Use shielded wiring
Max. 500 m
(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:
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 manufacture, because special
purpose tools are required.
(A) Power supply
Wire size Max. length
6 mm
30 A
6 mm
35 A
or 10 mm
40 A
10 mm
40 A
10 mm
50 A
(E) Control wiring for group control
2
(AWG #18)
(F) Inter-outdoor unit control wiring
2-24
Design of 3-WAY ECO-i SYSTEM
Time delay fuse or
circuit capacity
2 92 m 35 A
2 70 m 35 A
2 95 m 50 A
2
79 m 50 A
2
68 m 50 A
2
0.75 mm (AWG #18)
Use shielded wiring
Max. 200 m (Total)
2
0.75 mm (AWG #18)
Use shielded wiring
Max. 300 m