Huawei FusionModule2000 Installation Manual page 28

FusionModule2000 Smart Modular Data Center
Installation Guide (2000 mm High Cabinets, Single-Row
Aisle Containment, 380 V)
Figure 3-1 Checking refrigerant
Table 3-1 Mapping between temperatures and R410A saturation pressure
Temperature
(° C)
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
Issue 04 (2017-06-30)
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 3-1 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-S
urface
Pressure
(MPa)
0.7
0.73
0.75
0.78
0.81
0.84
0.87
0.9
0.93
0.96
0.99
1.02
1.05
1.09
1.12
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Temperature Saturation
(° C) Pressure-S
urface
Pressure
(MPa)
19 1.31
20 1.35
21 1.39
22 1.4
23 1.47
24 1.51
25 1.56
26 1.60
27 1.65
28 1.69
29 1.74
30 1.79
31 1.84
32 1.89
33 1.94
3 Hardware Installation Preparations
Temperatur
e (° C)
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
Saturati
on
Pressure
-Surface
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
3.04
3.11
19