Vacuumizing
Leak Detection
Post-installation Inspection Items and Test Run
Post-installation Inspection Items
Test Run
Items to Be Checked
Whether the installation is firm or not
Whether the inspection on air leakage is completed
Whether the unit is fully insulated
Whether the drainage is smooth or not
Whether the power voltage is identical to that marked on the
nameplate
Whether the circuit and pipeline are installed correctly
Whether the unit is safely earthed
Whether the type of wire is in line with relevant regulations
Whether barriers are identified at the air inlet/outlet of the
indoor/outdoor unit
Whether the length of refrigerant pipes and the refrigerant
amount charged are recorded
Consequence of Improper Installation
The unit may fall, vibrate or make a noise
The refrigerating capacity (heating capacity) may be insufficient
Condensation or drip may occur
Condensation or drip may occur
Failure may occur or the parts may be burned
Failure may occur or the parts may be burned
Electric leakage may occur
Failure may occur or the parts may be burned
The refrigerating capacity (heating capacity) may be
insufficient
The refrigerant amount charged cannot be confirmed
7
1) Fixing
The support of the outdoor unit shall be fixed onto the wall surface, and then the outdoor unit shall be fixed onto the support
horizontally. In case the outdoor unit is wall-mounted or roof-mounted, the support shall be firmly fixed, to avoid the damage of
strong wind.
2) Installation of connecting pipes
The cone of the connecting pipes shall be aligned with the conical surface of corresponding valve connector. The nut of
connecting pipes shall be installed at a proper position and then be tightened with a spanner. Excessive tightening torque shall
be avoided, or otherwise the nut may be damaged.
A digital vacuum gauge shall be connected for vacuumizing. The duration of vacuumizing shall be at least 15 minutes,
and the pressure of the vacuum gauge shall be below 60Pa.Afterwards, the vacuumizing equipment shall be closed, and
whether the reading of the digital vacuum gauge is increased or not shall be observed after the pressure is maintained for 5
minutes. In case no leakage is identified, the two-way stop valve and three-way stop valve of the outdoor unit may be opened.
Finally, the vacuumizing hose connected to the outdoor unit can be disassembled.
The joint of connecting pipes for the outdoor unit shall be subject to leak detection with soap bubble or dedicated leak
detection equipment.
1. Preparations
(1) Check the power supply.
(2) Check the equipment around, whether there is any combustible source, fire source,or heat source.
(3) Power on is not allowed before all the installation operations are completed and before the leak detection is proven qualified.
(4) The control circuit shall be connected correctly and all the wires shall be firmly connected.
(5) The two-way stop valve and three-way stop valve shall be opened.
(6) All the scattered articles (especially the metal filing and thread residue) shall be removed from the unit body.
2. Methods
(1) Switch on the power supply and press the "ON/OFF" on the remote controller, after which the air conditioner will start
operating.
(2) Press "Mode"to select refrigeration, heating and sweeping wind, and observe whether the air conditioner is under normal
operation.
