Installation Instructions
● Items to be checked after the installation
Table 15
Items to be Checked
Has each part and component of the
unit been installed securely?
Has the gas leakage test been taken?
Is the thermal insulation sufficient?
Does the drainage go well?
Is the actual power voltage in line with
the value marked on the nameplate?
Are the wiring and piping correct?
Has the unit been earthed reliably?
Does the wire meet the regulated
requirement?
Is there any obstacle at the air inlet/
outlet of the indoor/outdoor unit?
Have the length of the refrigerant
pipe and the refrigerant charge been
recorded?
● 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.
Possible Errors
The unit may fall off ,vibrate or
generate noise.
The cooling (heating) capacity may
be poor.
Dews and water drops may be
generated.
Dews and water drops may be
generated.
The unit may break down or some
components may be burnt out.
The unit may break down or some
components may be burnt out.
There may be a danger of electric
shock.
The unit may break down or the
components may be burnt out.
The cooling (heating) capacity may
be poor.
It may be hard to know the exact
refrigerant charge.
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Check Results