15
Installation Instructions
● Items to be checked after the installation
Table 14
Items to be Checked
Possible Errors
Check Results
Has each part and component of the
unit been installed securely?
The unit may fall off ,vibrate or
generate noise.
Has the gas leakage test been taken?
The cooling (heating) capacity may be
poor.
Is the thermal insulation sufficient?
Dews and water drops may be
generated.
Does the drainage go well?
Dews and water drops may be
generated.
Is the actual power voltage in line with
the value marked on the nameplate?
The unit may break down or some
components may be burnt out.
Are the wiring and piping correct?
The unit may break down or some
components may be burnt out.
Has the unit been earthed reliably?
There may be a danger of electric
shock.
Does the wire meet the regulated
requirement?
The unit may break down or the
components may be burnt out.
Is there any obstacle at the air inlet/
outlet of the indoor/outdoor unit?
The cooling (heating) capacity may be
poor.
Have the length of the refrigerant
pipe and the refrigerant charge been
recorded?
It may be hard to know the exact
refrigerant charge.
● Trial Running
1. Check before the Trial Running
(1) Check if the appearance of the unit and the piping system are damaged during the
transportation.
(2) Check if the wiring terminals of the electronic component are secure.
(3) Check if the rotation direction of the fan motor is right.
(4) Check if all valves in the system are fully opened.
2. Trial Running
(1) The trial running should be carried out by the professionally skilled personnel on the
premise that all items above are in normal conditions.
(2) Let the unit energized and switch the wired controller or the remoter controller to
“ON”.
(3) The fan motor and compressor of the outdoor unit will run automatically in one minute.
(4) If there is some unusual sound after the compressor is started, turn off the unit for an
immediate check.