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(heating) capacity.
Is the inlet and outlet of piping hole
been covered?
It may cause insufficient cooling
(heating) capacity or waster eletricity.
Items to be checked Possible malfunction
The unit may drop, shake or emit noise.
Have you done the refrigerant leakage
test?
(heating) capacity.
It may cause condensation and water
dripping.
Is water drained well?
It may cause condensation and water
dripping.
Is the voltage of power supply accord-
ing to the voltage marked on the
nameplate?
It may cause malfunction or damaging
the parts.
Is electric wiring and pipeline installed
correctly?
It may cause malfunction or damaging
the parts.
Is the unit grounded securely? It may cause electric leakage.
Does the power cord follow the speci-
It may cause malfunction or damaging
the parts.
Is there any obstruction in the air inlet
and outlet?
(heating) capacity.
The dust and sundries caused during
installation are removed?
It may cause malfunction or damaging
the parts.
The gas valve and liquid valve of
connection pipe are open completely?
Check after installation
Test operation
● Check according to the following requirement after finishing installation.
1. Preparation of test operation
● Do not switch on power before installation is finished completely.
● Electric wiring must be connected correctly and securely.
● Gas vale and liquid valve should be opened.
2. Test operation method
● Switch on power, press ON/OFF button on the remote controller to start
operation.
● Press MODE button to select COOL, HEAT and FAN to check whether the
operation is normal or not.
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