Vertiv | Liebert PEX4 | User Manual 32
Installation
• For the downow unit, the base must be greater than the height of 400mm and for the upow unit, the
base height must be about 200mm.
• The side panels are suspended to the frame of the unit, ensure that oor stand should bear the weight of
the panels.
• The distance between the obstacles that may obstruct the air supply around the upper edge of the base
and the outer edge of the EC fan shall be greater than 160mm
2.4. Installation Considerations
Installation precautions for outdoor unit are as follows:
• To ensure the cooling performance of the unit, install the condenser in the outdoor with suicient airow. Do
not install where dust or snow can obstruct the condenser coil. Ensure no steam around the unit, waste heat
and so on.
• The installation conditions are recommended to allow the user to adopt a horizontal installation that reduces
noise.
• To reduce the impact of noise around the environment, the condenser should be installed away from the
residential area (≥15 m).
• Be careful not to damage the building’s waterproof layer when installing the condenser on the building’s roof.
Please comply with the relevant local premises rules.
• Position the condenser higher than the indoor unit to ensure normal oil return.
2.5. Pipe Installation Unit (Air-cooled Units)
There are four kinds of pipe to be joint as follows:
• Condensed drain piping connection of the indoor unit
• Humidier inlet pipe connection
• Connection of the copper pipe (discharge and liquid pipe) between the indoor and outdoor unit.
• Long piping kit.
The following points need to be taken into consideration during the piping process:
• All the joints of the refrigerating pipes must be silver-brazed.
• The selection, layout, and xing of the pipes should comply to the industry standards and norms.
• Vacuum pumping and refrigerant charging operations, and procedures must conform to the
industry standards.
• Pressure drop, compressor oil return, noise, and vibration must be considered during the
designing and installation process.
To Next Page
Loading...
Need help?
General
