Refrigerant R410A - Huawei NetCol8000-A013 User Manual

NetCol8000-A013 In-room Air Cooled Smart Cooling
Product
User Manual (600 mm Width)

3.2.1 Refrigerant R410A

Do not use low-quality refrigerant. The supplier is not responsible for any device
damage caused by low-quality refrigerant.
Follow these suggestions to choose high-quality refrigerant:
1.
2.
Figure 3-1 Checking refrigerant
Table 3-3 Mapping between temperatures and R410A saturation pressures
Temperatur
e (°C)
0
1
2
3
4
5
6
Issue 04 (2022-11-25)
CA UTION
Contact the refrigerant producer to confirm the refrigerant authenticity.
As shown in Figure 3-1, 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 Table 3-3. 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.
Saturation
Pressure –
Gauge
Pressure
(MPa)
0.7
0.73
0.75
0.78
0.81
0.84
0.87
Copyright © Huawei Digital Power Technologies Co., Ltd.
Temperatu Saturation
re (°C) Pressure –
Gauge
Pressure
(MPa)
19 1.31
20 1.35
21 1.39
22 1.43
23 1.47
24 1.51
25 1.56
3 System Installation
Temperatu Saturatio
re (°C) n
Pressure –
Gauge
Pressure
(MPa)
38 2.21
39 2.27
40 2.33
41 2.39
42 2.45
43 2.51
44 2.57
34