Item
Description
Type
Engineering
procurement
material
This type of materials is not
configured by Huawei.
Customers need to prepare
them by themselves.
Drainpipe, pipe support, and
equipotential ground cable
4.2.2.1 R410A Refrigerant
CA UTION
Do not use low-quality refrigerant. Huawei is not responsible for any damage
caused by low-quality refrigerant.
Verify that the refrigerant is authentic in the following ways:
1. Contact the refrigerant producer to confirm the refrigerant authenticity.
2. As shown in
, place the refrigerant in an indoor place with
constant temperature and humidity for 24 hours. Then, use a thermometer to
measure the temperature of the refrigerant tank outer surface and connect a
pressure gauge to the pressure tank to measure the internal pressure. Find the
saturation pressure corresponding to the measured outer surface temperature
from
. If the deviation between the saturation pressure and the
measured internal pressure is greater than 0.2 MPa, the refrigerant does not
meet the requirements and needs to be replaced.
Figure 4-21 Checking refrigerant
Table 4-12 Mapping between temperatures and R410A saturation pressure
Temperatur
e (°C)
Saturation
Pressure –
Gauge
Pressure
(MPa)
Temperatu
re (°C)
Saturation
Pressure –
Gauge
Pressure
(MPa)
Temperatu
re (°C)
Saturatio
n
Pressure –
Gauge
Pressure
(MPa)
0
0.7
19
1.31
38
2.21
1
0.73
20
1.35
39
2.27
NetCol5000-A050 In-row Air Cooled Smart Cooling
Product
User Manual
4 Installation
Issue 08 (2021-09-17)
Copyright © Huawei Technologies Co., Ltd.
52
