Connecting Electrical Wiring - Carrier 53KHET 12 Installation Manual

18. CONNECTING ELECTRICAL WIRING

18-1 ELECTRICAL WIRING BETWEEN ELECTRICAL POWER SUPPLY
AND CIRCUIT BREAKER OF AIR CONDITIONER
WARNING
All electrical connections between electrical power supply and circuit breaker of air conditioner
are the responsibility of the customer and must be done by a qualified electrical technician
!
according to national electrical wiring regulations to avoid fire due to short-circuiting.
(A) Operating Voltage
The operating voltage of electrical power supply should be within the limits of voltage mentioned
on unit nameplate data.
(B) Electrical kWh Counter KWH
The capacity of electrical kWh counter should be lager than the operating currents required for air
conditioner(s) and any other electrical domestic appliances in use simultaneously from the same
supply.
(C) Electrical Distribution Box
The installation of electrical distribution box after the electrical KWH counter is necessary
to properly distribute the electrical loads.
The electrical distribution box should be equipped with circuit breakers according to the electrical
loads.
For each installed air conditioner, a separate circuit breaker with its own overload should be
installed on the electrical distribution box.
(D) Operation On / Off Circuit Breaker
The installation of two pole automatic circuit breaker is necessary to operate the air conditioner.
The circuit breaker must be installed to be far away from any flammable materials (curtains...etc.).
The circuit breaker must be suitable for air conditioner as the table " ELECTRICAL DATA " Page (42)
Do not use operation ON / OFF circuit breakers except the approved models for use with air
conditioners.
(E) Electrical Cable
Do not use electrical connection cables except the approved for use with air conditioners.
The power cable should be a complete unit, without extensions.
The power cable size must be suitable for the air conditioner with length up to 10 meter.
See table " ELECTRICAL DATA " page (42).
(F) Electrical Wiring
a. Make ground connection prior to any other electrical connections in accordance with the
electrical codes.
b. Ensure that mains supply connection is made through a switch that disconnects all poles,
with contact gap of at least 3 mm.
c. Avoid slack connections of the electrical cords when connected to the terminal blocks of indoor
and outdoor units. These slack connections lead to voltage drop and unit malfunctions.
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