Checking After Commissioning - Huawei NetCol5000-C030H90D0 User Manual

NetCol5000-C(030, 032, 065) In-row Chilled Water
Smart Cooling Product
User Manual (2019)
Figure 4-32 the drainage needle valves of the heat exchanger (NetCol5000-C030/
C032)
(1) Drainage needle valves 1
Step 2 Connect a nitrogen cylinder to the drainage needle valve 1 of the heat exchanger,
set the intake pressure to 0.5 MPa, and blow nitrogen into the valve for 10
minutes so that the water flows out of the drainage needle valve 2.
Step 3 Connect the nitrogen cylinder to the drainage needle valve 2 of the heat
exchanger, set the intake pressure to 0.5 MPa, and blow nitrogen into the valve for
10 minutes, so that the water flows out of the drainage needle valve 1.
Step 4 Stop the nitrogen cylinder and wait for 20 minutes.
Step 5 Start the nitrogen cylinder and repeat steps
----End

4.8 Checking After Commissioning

Table 4-12
Table 4-12 Commissioning checklist
Check Item
No oil stain exists on the copper pipe thermal insulation
foam or bottom plate, or it has been cleaned.
The needle valve plug is secured (torque of 0.45±0.05
N•m), and valve bonnet is tightened.
The foreign matter inside the water pan and bottom plate
is cleaned up.
Issue 03 (2020-08-30)
lists the commissioning checklist.
Copyright © Huawei Technologies Co., Ltd.
(2) Drainage needle valves 2
2 – 4 for three times.
Actual Result
□ Passed □ Failed
□ Passed □ Failed
□ Passed □ Failed
4 Commissioning
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