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14
Chapter 3 Mechanical Installation
3. Install the other six cabinet connectors according to the same method.
3.4 Piping
The pipes to be connected include:
1. Condensed water drainage pipe of indoor unit;
2. Water inlet pipe of electrode humidifier;
3. Connection copper pipe (discharge pipe and liquid pipe) between indoor unit and outdoor unit;
4. Pipe extension kit (optional).
Note
All joints of the refrigerating pipes must be silver-brazed.
The selection, layout and fixing of the pipes shall comply with industrial standard.
Vacuum pumping and refrigerant charging operations are subject to industry standards.
Pressure drop, compressor oil return, noise reduction and vibration shall be considered in design and
installation.
3.4.1 Removing Filters
Remove the filters before the pipes of the indoor unit are connected.
Open the rear door of the cabinet to reveal the two top and bottom filters. At first, loosen the fixing screws of the filter
fixing flake, take off the fixing flake to remove the top filter, and use the same method to remove the bottom filter, as
shown in Figure 3-12.
Figure 3-11 Schematic diagram for connecting the cabinet
Figure 3-12 Removing the filters
Liebert.CRV+ Series Air Cooled Precision Air Conditioner User Manual
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