Huawei NetCol8000-A013 User Manual page 52

NetCol8000-A013 In-room Air Cooled Smart Cooling
Product
User Manual (800 mm Width)
Figure 3-23 Support positions for refrigerant pipes
Ask the site engineering personnel to prepare and install pipe supports. For details about the pipe support
requirements, see
Step 2 Connect the outdoor unit stop valves.

Connect the liquid pipe stop valve first, and then the gas pipe stop valve.

The outdoor unit has been charged R410A refrigerant for 8 kg before delivery. To avoid
refrigerant leaks, do not open the outdoor unit stop valve during welding process.
1.
2.
3.
Issue 05 (2019-12-20)
3.2.3 Pipe
Weld the adapter and the straight section of the engineering pipe outside the cabinet.
Remove the pipe nut from the liquid pipe stop valve and gas pipe stop valve using an
adjustable wrench. Check that the PTFE washer on the stop valve and the inner
protruding surface of the active connector nut are free of impurities and scratches.
Clean up impurities using alcohol or a wet cloth. For any scratch, contact Huawei
technical support for replacement.
Keep the adapter nut and the stop valve screw thread on the same center line. Secure the
adapter to the stop valve with the other hand and tighten the nut using a torque wrench.
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3 Installation Guide
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