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NetCol8000-C(070-260) In-room Chilled Water Smart
Cooling Product
User Manual
Figure 3-51 Opening the chilled water valve (applicable only to BOM numbers 52272560 and
52272562)
Step 3 Slowly open the exhaust valve to discharge air.
If you open the chilled water valve quickly, water may spill out of the water pan due to high
pressure.
Step 4 Adjust the air exhausting speed until no air flows out of the valve. Then close the exhaust
valve.
Step 5 (If a leakage test with nitrogen has been performed, skip this step.) Raise the water pressure in
the chilled water pipe to 0.8 MPa. If no leakage occurs after 30 minutes, retain the pressure
for 24 hours. The expected result is that the pressure drop is less than 0.01 MPa and the pipe
does not leak. Then, release the pressure in the pipe.
Step 6 Manually close the chilled water valve.
----End
Issue 06 (2020-01-13)
Copyright © Huawei Technologies Co., Ltd.
3 Installation Guide
80
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