Optional) Refrigerant R410A - Huawei NetCol8000-A013 User Manual

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

3.2.1 (Optional) Refrigerant R410A

Do not use low-quality refrigerant. Huawei is not responsible for any 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 02 (2020-11-09)
CA UTION
Contact the refrigerant producer to confirm the refrigerant authenticity.
Check the refrigerant by following the steps shown in
refrigerant indoors at a constant temperature and humidity for 24 hours. Use
a thermometer to measure the external surface temperature of the
refrigerant container, and connect a pressure gauge to the container to
measure its internal pressure. Determine the saturation pressure that
corresponds to the measured external surface temperature according to
3-3 and calculate the deviation from the measured internal pressure. If the
deviation is more than 0.2 MPa, the refrigerant is not qualified and should be
replaced.
Saturation
Pressure-
Surface
Pressure
(MPa)
0.7
0.73
0.75
0.78
0.81
0.84
0.87
Copyright © Huawei Technologies Co., Ltd.
Temperatu Saturation
re (°C) Pressure-
Surface
Pressure
(MPa)
19 1.31
20 1.35
21 1.39
22 1.43
23 1.47
24 1.51
25 1.56
3 Installation Guide
Figure 3-1: Keep the
Table
Temperatu Saturatio
re (°C) n
Pressure-
Surface
Pressure
(MPa)
38 2.21
39 2.27
40 2.33
41 2.39
42 2.45
43 2.51
44 2.57
29