Huawei NetCol8000-A045D Quick Manual page 5

2.1
Refrigerant R410A
Do not use unqualified refrigerant. Huawei will not be liable for any equipment damage caused
by unqualified refrigerant.
You can verify the refrigerant authenticity in the following ways:
1. Dial the refrigerant manufacturer's hotline to confirm the refrigerant manufacturer
authenticity.
2. Place the refrigerant tank indoors for 24 hours. Use a point thermometer to measure the
outer surface temperature of the refrigerant tank , and connect a pressure gauge to the tank
to measure the internal pressure. Find the saturation pressure corresponding to the
measured outer surface temperature from the following table. 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.
Mapping Between Saturation Temperatures and Pressures of R410A
Saturation Gauge
Temperature (ºC) (MPa)
10 0.99
11 1.02
12 1.05
13 1.09
14 1.12
15 1.16
16 1.19
17 1.23
18 1.27
Saturation
Temperature (ºC)
19
20
21
22
23
24
25
26
27
4
Gauge Saturation
(MPa) Temperature (ºC)
1.31 28
1.35 29
1.39 30
1.43 31
1.47 32
1.51 33
1.56 34
1.60 35
1.65 36
Gauge
(MPa)
1.69
1.74
1.79
1.84
1.89
1.94
1.99
2.05
2.10