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NetCol5000-A021 In-row Air Cooled Smart Cooling
Product
User Manual (208 V)
1.
2.
Figure 3-1 Checking refrigerant
Table 3-6 Mapping between temperatures and R410A saturation pressure
Temperature
Saturation
(° C)
Pressure-Surface
Pressure (MPa)
0
0.7
1
0.73
2
0.75
3
0.78
4
0.81
5
0.84
6
0.87
7
0.9
8
0.93
9
0.96
10
0.99
11
1.02
12
1.05
Issue 03 (2020-01-10)
Contact the refrigerant producer to confirm the refrigerant authenticity.
Check the refrigerant by following the steps shown in
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
Table 3-6
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.
Temperature
(° C)
19
20
21
22
23
24
25
26
27
28
29
30
31
Copyright © Huawei Technologies Co., Ltd.
Figure
Saturation
Temperature
Pressure-Surface
(° C)
Pressure (MPa)
1.31
38
1.35
39
1.39
40
1.43
41
1.47
42
1.51
43
1.56
44
1.60
45
1.65
46
1.69
47
1.74
48
1.79
49
1.84
50
3 Installation Guide
3-1: Keep the refrigerant
Saturation
Pressure-S
urface
Pressure
(MPa)
2.21
2.27
2.33
2.39
2.45
2.51
2.57
2.63
2.7
2.76
2.83
2.9
2.97
27
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