Huawei NetCol5000-A050 User Manual page 66

NetCol5000-A050 In-row Air Cooled Smart Cooling
Product
User Manual (1350 mm Depth)
Commissioning tools
Vacuum pump
Nitrogen
Thermocouple
temperature
sensor
c: The flow rate of the vacuum pump should range from 2 L/s to 4 L/s. The
absolute vacuum degree should be 60 Pa at most.
d: The pressure gauges and rubber hoses must be dedicated for R410A. The
measuring range of the pressure gauges must be at least 4.0 MPa, and the
rubber hoses must withstand a pressure of at least 4.5 MPa. Ensure that the
rubber hoses match the 1/4 inch needle valves inside the unit. If necessary,
prepare needle valve adapters. When charging refrigerant, you are advised to
use a safety valve to prevent refrigerant leakage during the removal of a rubber
hose, which may cause frostbite.
e: The nitrogen cylinder port should have a reducing valve, and the measuring
range should be at least 4.0 MPa.
f: Dry nitrogen.
Issue 04 (2022-12-15)
Rubber hose (5
c
d
PCS)
f Electronic balance
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Copyright © Huawei Digital Power Technologies Co., Ltd.
4 System Installation
Pressure gauge (2
Reducing valve
d
PCS)
Multimeter Clamp meter
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e
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