3
7
Check after installation
Test operation
● Check according to the following requirement after finishing installation.
Items to be checked
Possible malfunction
Has the unit been installed firml
y?
The unit may drop, shake or emit noise.
Have you done the refrigerant leakage
test?
It may cause insufficient cooling
(heating) capacit
y
.
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 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-
fication?
It may cause malfunction or damaging
the parts.
Is there any obstruction in the air inlet
and outlet?
It may cause insufficient cooling
(heating) capacit
y
.
T
he 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?
It may cause insufficient cooling
(heating) capacit
y
.
1. Preparation of test operation
● The client approves the air conditioner.
● Specify the important notes for air conditioner to the client.
2. Method of test operation
● Put through the power, press ON/OFF button on the remote controller to start
operation.
● Press MODE button to select
AUT
O, COOL, D
RY
, FAN and HE
AT
（
only applicable
to heat pump model
）
to check
whether the operation is normal or not.
● If the ambient temperature is lower than 16
℃
, the air conditioner can’t
start cooling.
Is the inlet and outlet of piping hole
been covered?
It may cause insufficient cooling
(heating) capacity or waster eletricity.
