Air Handlers
16
4.7 Electrical Installation
4.7.1 Requirement and Notice on Electrical Installation
The electrical installation for the air conditioner should observe the following
requirements:
ķ. The electrical installation must be conducted by professionals in compliance with
local laws and regulations and the instructions in this manual. Never extend the
power cords. The electric circuit must be equipped with a circuit breaker and air
switch both with sufficient capacity.
ĸ. The unit’s operating power must be within the nominal range stated in the
instruction manual. Use a specialized power circuit for the air conditioner. Do not
draw power from another power circuit.
Ĺ. The air conditioner circuit should be at least 1.5m away from any inflammable
surface.
ĺ. The external power cords, the thermostat wires and thermostat must be effectively
fixed.
Ļ. The external power cords, the thermostat wires and thermostat can’t directly
contact any hot objects. For example: they must not contact chimney pipes, warm
gas pipes or other hot objects.
ļ. The external power cords, the thermostat wires and thermostat must not be
squeezed. Never pull, stretch or bend the wires.
Ľ. The external power cords, the thermostat wires and thermostat must not collide
with any metal beam or edge on the ceiling, or touch any metal burrs or sharp
metal edge around.
ľ. Connect wires correspondingly by referring to the circuit diagram labeled on the
unit or electric box. Screws must be tightened up. Slipped screws must be
replaced by specialized flat-head screws.
Ŀ. Wiring terminals should be connected firmly to the terminal board. Loose
connection is forbidden.
ŀ. The wire gauge of power cord should be large enough. Damaged power cords or
other wires must be replaced by specialized wires. Wiring work must be done
according to national wiring rules and regulations.
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