Electrical wiring – Sanyo CHDZ09053 User Manual

Page 34

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Design of W-3WAY ECO-i SYSTEM Unit Specifi cations

1

2

3

4

5

6

7

8

3. Electrical Wiring

3-1. General Precautions on Wiring

(1) Before wiring, confi rm 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-

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 fi eld 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.

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

Control wiring

(A) Inter-unit (between outdoor and

indoor units) control wiring

(B) Remote control wiring

(C) Control wiring for group control

(D) Inter-outdoor unit control wiring

AWG #18 (0.75 mm

2

)

AWG #18 (0.75 mm

2

)

AWG #18 (0.75 mm

2

)

AWG #18 (0.75 mm

2

)

Use shielded wiring*

Use shielded wiring

Use shielded wiring

Use shielded wiring

Max. 3,280 ft.

Max. 1,640 ft.

Max. 1,640 ft. (Total)

Max. 1,640 ft.

* With ring-type wire terminal.

NOTE

Outdoor unit

CHDZ09053

CHDZR09053

CHDZ14053

CHDZR14053

50 A

Time delay fuse or

circuit capacity

Indoor unit

70 A

Time delay fuse or

circuit capacity

K

A, X, XM, T, U

D (364, 484)

10 – 16 A

10 – 16 A

10 – 16 A

Type

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