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Check the following items after finishing installation:
Items to check
Possible malfunction
Has the unit been installed solidly?
The unit may drop, shake or emit noise.
Have you done the refrigerant leakage test?
It may cause insufficient cooling (heating) capacity.
Is heat insulation of pipeline sufficient?
It may cause condensation and water dripping.
Is water drained well?
It may cause condensation and water dripping.
Is the voltage of power supply according to the
voltage marked on the nameplate?
It may cause malfunction or damaging the parts.
Are electric wiring and pipes installed correctly?
It may cause malfunction or damaging the parts.
Is the unit grounded securely?
It may cause electric leakage.
Does the power wire follow the specifications?
It may cause malfunction or damaging the parts.
Is there any obstruction in the air inlet and
outlet?
It may cause insufficient cooling (heating) capacity.
Are dust and installation debris removed?
It may cause malfunction or damaging the parts.
Are gas valve and liquid valve of connection
pipe completely opened?
It may cause insufficient cooling (heating) capacity.
Have the length of refrigerating pipe and refri-
gerant charge amount been recorded?
It is not easy to figure out the charge amount of
refrigerant if it has not been recorded.
CHECKING AFTER INSTALLATION
