Haier AD140S2SM3FA - Page 171

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1.Fixing and connection
Note:
a) Fire source shall be avoided within 3m around the place of installation.
b) The leak detection equipment of refrigerant shall be placed at a low position in the
outdoor, and shall be opened.
1) Fixing
The support of the outdoor unit shall be xed onto the wall surface, and then the outdoor unit shall be xed onto
the support horizontally. In case the outdoor unit is wall-mounted or roof-mounted, the support shall be rmly xed,
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 identied, 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.
• Outdoor Unit Installation
• Vacuumizing
• Leak Detection
• Post-installation Inspection Items and Test Run
Post-installation Inspection Items
Items to Be Checked Consequence of Improper Installation
Whether the installation is rm or not The unit may fall, vibrate or make a noise
Whether the inspection on air leakage is completed
The refrigerating capacity (heating capacity) may be
insufcient
Whether the unit is fully insulated Condensation or drip may occur
Whether the drainage is smooth or not Condensation or drip may occur
Whether the power voltage is identical to that marked on
the nameplate
Failure may occur or the parts may be burned
Whether the circuit and pipeline are installed correctly Failure may occur or the parts may be burned
Whether the unit is safely earthed Electric eakage may occur
Whether the type of wire is in line with relevant
regulations
Failure may occur or the parts may be burned
Whether barriers are identied at the air inletloutlet of the
indoorloutdoor unit
The refrigerating capacity (heating capacity) may be
insufcient
Whether the length of refrigerant pipes and the refrigerant
amount charged are recorded
The refrigerant amount charged cannot be conrmed