114. eLeCTRICAL WIRING4-1. General Precautions on Wiring(1) Before wiring, confirm the rated voltage of the unit asshown on its nameplate, then carry out the wiring closelyfollowing the wiring diagram.(2) Circuit breaker must be incorporated in the fixed wiring inaccordance with the wiring regulations. The circuit breakermust be an approved 10-16 A, having a contact separationin all poles.(3) To prevent possible hazards from insulation failure, the unitmust be grounded.(4) Each wiring connection must be done in accordance withthe wiring system diagram. Wrong wiring may cause theunit 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 verydangerous. The manufacturer will accept no responsibilityfor any damage or misoperation that occurs as a result ofsuch unauthorized changes.(7) Regulations on wire diameters differ from locality tolocality. For field wiring rules, please refer to your LOCALELECTRICAL CODES before beginning.You must ensure that installation complies with all relevantrules and regulations.(8) To prevent malfunction of the air conditioner caused byelectrical noise, care must be taken when wiring as follows:● The remote control wiring and the inter-unit control wiringshould be wired apart from the inter-unit power wiring.● Use shielded wires for inter-unit control wiring between unitsand 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 designated by themanufacturer, because special-purpose tools are required.CAUTIONCheck local electrical codes and regulations before wiring.Also, check any specified instruction or limitations.4-2. Recommended Wire Length and Wire Diameterfor Power Supply SystemIndoor unitType (B) Power supply Time delay fuse orcircuit capacity2.5 mm 2T2 Max. 130 m 10-16 AControl wiring(C) Inter-unit (between outdoorand indoor units) control wiring (D) Remote control wiring0.75 mm 2(AWG #18)Use shielded wiring*0.75 mm2(AWG #18)Max. 1,000 m Max. 500 mNOTE* With ring-type wire terminal.