Haier AB122ACERA Service Manual - Page 17

Commercial Air Conditioner Model: AU122AEERA AB122ACERA AC122ACERA AD122ALERA Electric wiring WARNING! DANGER OF BODILY INJURY OR DEATH TURN OFF ELECTRIC POWER AT CIRCUIT BREAKER OR POWER SOURCE BEFORE MAKING ANY ELECTRIC CONNECTIONS. GROUND CONNECTIONS MUST BE COMPLETED BEFORE MAKING LINE VOLTAGE CONNECTIONS. (1) Selection of size of power supply and interconnecting wires. Precautions for Electric wiring Electric wiring work should be conducted only by authorized personnel. Do not connect more than three wires to the terminal block. Always use round type crimped terminal lugs with insulated grip on the ends of the wires. Use copper conductor only. Select wire sizes and circuit protection from table below. (This table shows 20 m length wires with less than 2% voltage drop.) Item Circuit breaker Model PhaseSwitch breaker Overcurrent (A) protector Power Earth leakage breaker source wire Switch Leak size break curren AU122AEERA 1 40 26 2.5 mm2 40A 30mA (2) Wiring connection Make wiring to supply power to the outdoor unit, so that the power for the indoor unit is supplied by terminals. For the detailed wiring connection with the indoor units, see the corresponding indoor operation and instruction manual. To Indoor Unit OUTDOOR UNIT 1 2 3 TERMINAL BLOCK Y/G WARNING! INTERCONNECTING WIRES MUST BE WIRED ACCORDING TO FIG.1 INCORRECT WIRING MAY CAUSE EQUIPMENT DAMAGE. 17