11. CHECK AFTER INSTALLATION AND TEST OPERATION
11.1 Check after installation
Items to be checked
Possible malfunction
Has it been fixed reliable?
The unit may drop, vibrate or make noise.
Has the gas leakage been checked?
It may cause insufficient cooling (heating) capacity.
Is the thermal insulation of the unit sufficient?
It may cause condensation and dripping.
Is the drainage well?
It may cause condensation and dripping.
Is the voltage in accordance with the rated voltage
marked on the nameplate?
It may cause electric malfunction or the components may
be burned out
Are the lines and pipelines correctly installed?
It may cause electric malfunction or the components may
be burned out
Has the unit been safely grounded?
It may cause electrical leakage.
Are the models of lines in conformity with requirements?
It may cause electric malfunction or the components may
be burned out
Are there any obstacles near the air inlet and outlet of the
indoor and outdoor units?
It may cause insufficient cooling (heating) capacity.
Have the length of connection pipes and refrigerant
charge amount been recorded?
It is not easy to decide the charge amount of refrigerant.
11.2 TEST OPERATION
1) Before test operation
• The appearance of the unit and the refrigerant pipes cannot be damaged during the installation.
• Do not switch on power before installation is finished completely.
• Electrical wiring must be connected correctly and securely.
• The stop valves of the outdoor unit should be opened fully.
• All the impurities such as scraps and thrums must be cleared from the unit.
2) Test operation method
①
The
test operation
should be carried out by the professionally skilled personnel.
②
Set the status of the power supply switch as “ON” eight hours before the start of operation
③
Press mode button, to select the COOL, HEAT or FAN. Whether the air conditioner is work normally or not.
•
The fan motor of the indoor unit will run automatically in one minute.
•
The fan motor and compressor of the outdoor unit will run automatically in one minute.
•
If the unit cannot work or has any abnormal noise after the compressor is started, turn off the unit for an immediate
check.
④
Make sure that every combination of indoor units can work well.
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Summary of Contents for Dual DC Inverter (4,1 kW)
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