Huawei NetCol8000-C070 User Manual page 77

NetCol8000-C(070, 130, 190) In-room Chilled Water
Smart Cooling Product
User Manual
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Procedure
Step 1 Open the general water supply valve.
Step 2 Verify that the chilled water valve is open (100%). If not, press the button on the
side of the actuator, and manually rotate the valve handle to the maximum.
Figure 3-32 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.
Issue 09 (2022-12-15)
clean the main pipe before water is supplied to the smart cooling product.
Turn off the isolation valves on the water inlet and outlet pipes before the
cleaning and turn them on afterwards.
If a cabinet has been disassembled, check that hold hoops on the pipe
connectors do not leak. If there is no water leakage, wrap the hold hoops with
thermal insulation foam.
Open the exhaust valve of each heat exchanger to exhaust nitrogen onsite.
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.
NO TICE
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