Huawei FusionModule800 Installation Manual page 279

FusionModule800 Smart Small Data Center
Installation Guide (Six Fans)
Context
Convert the components that cause partial resistance loss such as elbows into the length
equivalent to that of straight pipes, and add the equivalent length to the length of the straight
pipe between the indoor and outdoor units to obtain the total one-way pipe length (L). L
should be less than or equal to 60 meters. If L exceeds 60 meters, contact Huawei technical
support.
Table 6-21 Equivalent length of pipe assemblies
Pipe Outer Diameter
5/8 inch (15.88 mm)
3/8 inch (9.52 mm)
Table 6-22
Table 6-22 Calculating the amount of refrigerant to be charged onsite
Type
One-way pipe length (m)
Amount of added
refrigerant (kg)
Refrigerant R410A from name brands such as Daikin are recommended.
Wear antifreeze gloves when performing refrigerant related operations.
Following are the tools used for commissioning and refrigerant charging:




Table 3-3
Issue 10 (2019-12-20)
lists how to calculate the amount of refrigerant to be charged onsite.
NetCol500-A018
NetCol500-A020
Charging tools: pressure gauge (measuring range ≥ 4.0 MPa), leather hose (withstanding
a pressure of at least 4.5 MPa), vacuum pump
Measurement tools: electric balance
Protective tools: insulation gloves, antifreeze gloves, and insulation shoes
Other tools: flashlight
lists the mapping between the saturation pressure and the temperature.
Copyright © Huawei Technologies Co., Ltd.
90° Bend
0.3 meter
0.2 meter
NetCol5000-A011
0 < L ≤ 30
0
0
6 Power-On Commissioning
180° Bend
0.6 meter
0.4 meter
30 < L ≤ 60
(L – 30) x 0.05
(L – 30) x 0.1
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