Haier AB122ACERA Service Manual - Page 24
Wiring
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Commercial Air Conditioner Model: AU122AEERA AB122ACERA AC122ACERA AD122ALERA Wiring ELECTRICAL WIRING CAUTION (1) Match the terminal block numbers and connection cable colours with those of the outdoor unit. Incorrect wiring may cause damage to the electrical parts. (2) Connect the connection cables firmly to the terminal block. Incorrect installation may result in a fire. (3) Always fasten the outside covering of the connection cable with the cable clamp.(If the insulation is chafed, a short curcuit may occur.) (4) Always connect the earth wire. (2) Pull out the electrical component box. Fig. 27 Electrical component box (3) Remove the electrical component box cover. Fig. 28 1. INDOOR UNIT SIDE (1) Remove the electrical component box. Fig. 25 Electrical component box INDOOR UNIT SIDE Fig. 26 Electrical component box Remove the four self tapping screws. CAUTION Do not remove the screws. If the screws are removed, the electrical component box will fall. Base Remove the three tapping screws Electrical component box cover CAUTION Be careful not to pinch the wiring between the electric component box and base. (4) Wiring See wiring diagrams for indoor unit. ELECTRICAL WIRING WARNING (1) Ensure all wiring complies with current regulations. (2) It is recommended that a MCB of the correct rating is used to protect the system. (3) Always use a circuit breaker that can trip all the poles of the wiring is fitted and has an isolation distance of at least 3mm between the contacts of each pole. CUSTOMER GUIDANCE Explain the following to the customer in accordance with the operating manual: (1) Starting and stopping method, operation switching, temperature adjustment, timer, air flow switching, and other remote control unit operations. (2) Air filter removal and cleaning, and how to use air louvres. (3) Give the operating and installation manuals to the customer. 24