Haier AB122ACERA Service Manual - Page 24

Wiring

Page 24 highlights

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

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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.
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.
Fig. 25
Electrical component box
ELECTRICAL WIRING
1. INDOOR UNIT SIDE
(1) Remove the electrical component box.
INDOOR UNIT SIDE
Commercial Air Conditioner
Model: AU122AEERA AB122ACERA
AC122ACERA AD122ALERA
Fig. 27
Electrical component box
Fig. 28
Base
Electrical component box cover
CAUTION
Be careful not to pinch the wiring
between the electric component box
and base.
(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.
WARNING
(2) Pull out the electrical component box.
ELECTRICAL WIRING
(3) Remove the electrical component box cover.
(4) Wiring
See
wiring diagrams for indoor unit.
Remove the three tapping screws
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