Optional) Leakage Test With Water - Huawei NetCol5000-C030 User Manual

NetCol5000-C(030, 032, 065) In-row Chilled Water
Smart Cooling Product
User Manual
Procedure
Step 1 Ensure that the needle valve and exhaust valve on the pipe are closed and the
chilled water valve is in the 100% state, as shown in
Figure 3-45 Adjusting the chilled water valve
Step 2 Open the main water inlet valve.
Step 3 Gradually open the exhaust valve, as shown in
chilled water flow out of the exhaust hose together.
Step 4 Adjust the air exhausting speed until no bubble flows out of the hose.
Step 5 After air is expelled, manually turn the chilled water valve to the 0 state.
Step 6 Close the exhaust valve.
----End

3.11 (Optional) Leakage Test with Water

● If the leakage test has been done with nitrogen, skip the test with water.
● Ensure that the indoor temperature is always above 0°C during the leakage test
with water, otherwise, the pipes may experience frost cracks. If the indoor
temperature is below 0°C, take anti-freezing measures for the pipes.
Manually open the chilled water valve. Inject water to 0.8 MPa, and preserve the
pressure for 24 hours. Then connect a pressure gauge to a needle valve on the
pipeline to measure the pressure. If the reading remains unchanged, the pipe is
not leaking. You can perform the following operations.
Issue 04 (2021-03-15)
NO TICE
Copyright © Huawei Technologies Co., Ltd.
Figure 3-45.
Figure 3-19 or Figure
3 Installation
3-20. Air and
65