Huawei NetCol8000-C070 User Manual page 71

NetCol8000-C(070, 130, 190) In-room Chilled Water
Smart Cooling Product
User Manual
Figure 3-33 Opening the chilled water valve
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.
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Issue 07 (2021-12-30)
NO TICE
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