Huawei FusionModule500 V100R021C10 - Commissioning the Cooling System

5.2.3 Commissioning the Cooling System
Prerequisites
Check that the smart cooling product is properly powered on.
NO TICE
Before starting the compressor after power-on, ensure that the electric heating
belt of the crankcase has been preheated for more than 12 hours.
Context
High-quality refrigerant R410A is recommended.
CA UTION
Wear antifreeze gloves when performing refrigerant related operations.
The following are the tools used for commissioning and refrigerant charging:
● Charging tools: pressure gauge (measuring range ≥ 4.0 MPa), rubber hose
(withstand pressure ≥ 4.5 MPa), vacuum pump
● Measurement tool: electronic balance
● Protective tools: insulation gloves, antifreeze gloves, and insulation shoes.
● Other tools:
ashlight
To learn the mapping between the saturation pressure and the saturation
temperature of the R410A refrigerant, see Table 5-2.
Table 5-2 Mapping between the saturation pressure and the saturation
temperature for R410A
Saturation
Temperatu
re (°C)
Gauge
Pressure
(MPa)
Saturation
Temperatu
re (°C)
Gauge
Pressure
(MPa)
Saturation
Temperatu
re (°C)
Gauge
Pressure
(MPa)
0 0.7 19 1.31 38 2.21
1 0.73 20 1.35 39 2.27
2 0.75 21 1.39 40 2.33
3 0.78 22 1.4 41 2.39
4 0.81 23 1.47 42 2.45
5 0.84 24 1.51 43 2.51
6 0.87 25 1.56 44 2.57
FusionModule500 Smart Mini Data Center
User Manual 5 Power-On Commissioning
Issue 01 (2020-11-30) Copyright © Huawei Technologies Co., Ltd. 114