Huawei FusionCol8000-E240 User Manual page 221

FusionCol8000-E240 Modular Indirect Evaporative
Cooling System
User Manual
1.
2.
Figure 8-30 Refrigerant detection
Table 8-6 Mapping between temperatures and R410A saturation pressures
Temperatur
e (ºC)
0
1
2
3
4
5
6
7
8
9
10
11
12
Issue 02 (2021-04-15)
Dial the refrigerant vendor's hotline to confirm the refrigerant authenticity.
As shown in Figure 8-30, 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 8-6. 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
0.9
0.93
0.96
0.99
1.02
1.05
Copyright © Huawei Technologies Co., Ltd.
Temperatu Saturation
re (ºC) 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
26 1.60
27 1.65
28 1.69
29 1.74
30 1.79
31 1.84
8 System Maintenance
Temperatu Saturatio
re (ºC) 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
45 2.63
46 2.7
47 2.76
48 2.83
49 2.9
50 2.97
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