Shenzhen Envicool Technology Co., Ltd.
For the unit configured with humidifier, the material of its external water drainage pipe shall be
able to withstand high temperature up to 100ºC. It is recommended to adopt galvanized steel
pipe, hot water type aluminum-plastic composite pipe or hot water type PPR pipe.
2.5.2 Refrigerant connecting copper pipe
The indoor unit and the outdoor unit need to be connected by two refrigerant pipes, namely the
insulated copper gas pipe and the liquid pipe. The specifications and dimensions of the
connecting pipe configured by the unit are shown in Table 2-16. Since the manual may not be
updated in time, the actual size shall prevail. When the length of the connecting pipe between
the indoor and outdoor units is greater than 10m, you can consult the engineers and technicians
of the air conditioning equipment company to recommend a suitable connecting pipe diameter.
When connecting pipes between the indoor unit and the outdoor unit, the pipes must be kept
parallel to pass through the wall, and a wall sleeve must be added when the pipe passes through
the wall. In order not to damage the pipe when perforated on the wall and to reduce vibration, it
is necessary to wrap protective tape on the outside of the pipe and seal it with glue. The
protective rubber plug of the pipe joint can only be removed when it is connected to the
outdoor machine after passing through the wall.
All refrigerant circuit pipes should be welded at high temperature and filled with nitrogen for
protection to prevent oxidation. Before use, perform pipeline cleaning, support, leak detection,
vacuuming, and refrigerant pipeline resistance inspections in accordance with the industry's
general operating specifications, and isolate the refrigerant pipeline from the building with an
anti-vibration isolator.
Table 2-14 Air conditioning outlet copper pipe specifications
Remarks: The above is the size of the connecting pipe of the compressor built-in unit,the
compressor built-in air pipe has different specifications from the compressor external air pipe.
To Next Page
Loading...
