Sanyo SPW-UMR124EXH56, SPW-UMR94EXH56, R410A Electrical Wiring, General Precautions on Wiring

Max. 130 m

2.5 mm2

4. ELECTRICAL WIRING

4-1. 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 fail- ure, 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.

(7)Regulations on wire diameters differ from locality to locality. For field wiring rules, please refer to your LOCAL ELECTRICAL CODES before begin- ning.

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.

4-2. Recommended Wire Length and Wire Diameter for Power Supply System

Outdoor unit

	(A) Power supply		Time delay fuse or
	Wire size	Max. length	circuit capacity
SPW-CR604GDXH8	4 mm2	113 m	15 A
SPW-CR704GDXH8	6 mm2	74 m	30 A
SPW-CR904GDXH8	6 mm2	60 m	35 A
SPW-CR1154GDXH8	6 mm2	55 m	40 A
SPW-CR704GDCH8	6 mm2	47 m	35 A
SPW-CR904GDCH8	6 mm2	46 m	40 A
SPW-CR1154GDCH8	6 mm2	39 m	50 A

Indoor unit

	(A) Power supply		Time delay fuse or
	Wire size	Max. length	circuit capacity
	2.5 mm2	70 m	16A
	6 mm2	74 m	35A
or	6 mm2	60 m	35A
	10 mm2	91 m	50A
	6 mm2	47 m	35A
	10 mm2	77 m	50A
	10 mm2	65 m	50A

(B) Power supply Time delay fuse or circuit capacity

10 ~16A

Control wiring

(C) Inter-unit (between outdoor and	(D) Remote control wiring	(E) Control wiring for group control
indoor units) control wiring
0.75 mm2 (AWG #18)	0.75 mm2 (AWG #18)	0.75 mm2 (AWG #18)
Use shielded wiring*	Use shielded wiring	Use shielded wiring
Max. 1,000 m	Max. 500 m	Max. 500 m (Total)

NOTE

* With ring-type wire terminal.

(F) Inter-outdoor unit control wiring

0.75mm2 (AWG #18)

Use shielded wiring

Max. 500 m

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