Huawei NetCol5000-A - Page 33

NetCol5000-A 42 kW Air Cooled In-row Precision Air
Conditioner
User Manual
3 Installation Guide
Issue 01 (2017-07-27)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
25
Table 3-5 Connecting cable tools
Appearance, specifications, and name
ESD gloves
Insulation gloves
Wire stripper
Polyvinyl chloride
(PVC) insulation tape
Heat gun
Crimping plier
N/A
N/A
N/A
N/A
Table 3-6 Commissioning tools
Appearance, specifications, and name
Pressure gauge (2
PCS)
a
Leather hose (5
PCS)
a
Vacuum pump
b
Nitrogen
c
Clamp meter
Electronic scale
Antifreeze gloves
Reducing valve
d
a: The pressure gauge and leather hose should be used especially for R410A, the
measurement range of the pressure gauge must be greater than or equal to 4.0 MPa, and the
tolerance range of the leather hose must be greater than or equal to 4.5 MPa. The size of
needle valve in the unit is 1/4 inch. Purchase a conversion adapter if you have a different
size of valve on leather hoses.
b. The airflow of the vacuum pump should be within 2–4 L/s and the absolute vacuum
degree should be less than or equal to 60 Pa.
c: Dry nitrogen
d: A reducing valve should be used on the nitrogen cylinder port. The measuring range of
the reducing valve should be at least 4.0 MPa.