NO TICE
The liquid inlet pipe and liquid outlet pipe of the low-temperature component
are φ12.7 mm copper pipes.
– If φ12.7 mm liquid pipes are required, no expansion or shrinkage is
required for connecting the low-temperature component.
– If φ9.52 mm liquid pipes are required, expand or shrink the pipes when
connecting the low-temperature component.
Figure 4-22 Liquid pipes of the low-temperature component
----End
4.2.4.7 Connecting Pipes
Pipe Cleaning
Ensure that the pipes are clean and free from rust, oxidation, sand, and oil stains.
Clean the pipes when necessary during the installation and maintenance of the
unit.
1. Clean copper pipes: If there are impurities such as oxide scale in a copper
pipe, use nitrogen or compressed dry air to clean the copper pipe. During
maintenance, if there are many oil stains in a copper pipe, charge a proper
amount of trichloroethylene or carbon tetrachloride. After the oil stains
dissolve, blow air to clean the copper pipe. Ensure proper indoor ventilation to
prevent the operator from being poisoned.
2. Clean the air-cooled condenser: The fins of the air-cooled condenser are easy
to be attached with dust and oil stains, which reduces the frontal area and
the air volume. Therefore, the condenser must be cleaned regularly. Brushing
and blowing are commonly used. Protect the fins and heat exchange pipes
during cleaning. Do not use hard objects to wash or knock.
FusionModule500 Smart Mini Data Center
User Manual
4 Installation Guide
Issue 02 (2020-12-25)
Copyright © Huawei Technologies Co., Ltd.
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