45
CHECKS AND TEST RUN AFTER
INSTALLATION
Check Items After Installation
Test Run
1. Preparation of Test Run
• Do not switch on the power before all installation work is completed.
• Confirm that the control line is correctly installed and all electrical lines are securely connected.
• Open the shutoff valves of the large and small pipes.
• Clear the unit of any foreign bodies, especially metal scraps, line ends and tools.
2. Test Run
• Plug in, press the "ON/OFF" key on the remote control, and the air-conditioning unit should start.
• Press the Mode key, select the operating modes such as cooling and fan, and check for normal
operation.
Check items
Problems caused to improper installation
Is the installation secure?
The unit may fall, vibrate or make noise
Has gas leakage been checked?
May cause unsatisfactory cooling (heating) effect
Is the thermal insulation of the unit sufficient?
May cause unsatisfactory cooling (heating) effect
Is drainage smooth?
May cause condensation and dripping
Is the main supply voltage the same as the rated
voltage specified on the nameplate?
The unit may break down or components may burn
out
Are the lines and pipelines correctly installed?
The unit may break down or components may burn
out
Has the unit been safely grounded?
Risk of electrical leakage
Are the models of lines in conformity with
requirements?
The unit may break down or components may burn
out
Are there any obstacles near the air inlet and outlet
of the indoor and outdoor units?
May cause unsatisfactory cooling (heating) effect
Have the length of refrigerating pipe and refrigerant
charge amount been recorded?
It is difficult to know how much refrigerant to use
