Optional) Leakage Test With Water For The Water-Cooled Module; Installing Cables - Huawei NetCol5000-A050 User Manual

NetCol5000-A050 In-row Air Cooled Smart Cooling
Product
User Manual
4.8.10 (Optional) Leakage Test with Water for the Water-
Cooled Module
Prerequisites
If a water-cooled module is installed, you need to do leakage test with water.
Ensure that the indoor temperature is always above 4°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.
Procedure
Step 1 Manually open the chilled water valve (100%).
Figure 4-79 Opening the chilled water valve
Step 2 Open the main water inlet valve for the water-cooled module.
Step 3 Gradually open the cooling water side needle valve. Air and chilled water flow out
of the needle valve together.
Step 4 Adjust the air exhausting speed until no bubble flows out of the needle valve.
Step 5 Tighten the cooling water side needle valve.
Step 6 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
subsequent operations.
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4.9 Installing Cables

Issue 13 (2023-08-20)
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