FusionModule800 Smart Small Data Center
Installation Guide (Six Fans)
Copyright © Huawei Technologies Co., Ltd.
3.7 Installing a Smart Cooling Product
3.7.1 Materials
Refrigerant R410A (Optional)
If the one-way length of the pipe connecting the indoor and outdoor units is less than or equal
to 30 m, no R410A refrigerant needs to be purchased. If the length is greater than 30 m and
less than or equal to 60 m, R410A refrigerant needs to be purchased.
Do not use unqualified refrigerant. Huawei will not be liable for any equipment damage
caused by unqualified refrigerant.
Customers can purchase this material from Huawei or other vendors. Verify that the
refrigerant is authentic in the following ways:
1. Dial the refrigerant manufacturer's hotline to confirm the refrigerant 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, as shown in Figure 3-26. Find the saturation
pressure corresponding to the measured outer surface temperature from Table 3-1. If the
deviation between the saturation pressure and the measured internal pressures is greater
than 0.2 MPa, the refrigerant does not meet the requirements and needs to be replaced.
Figure 3-26 Checking the refrigerant
Table 3-1 Mapping between the saturation pressure and the saturation temperature for R410A
Saturation
Temperature
(°C)
Saturation
Temperature
(°C)
Saturation
Temperature
(°C)
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