Huawei NetCol5000-A025 User Manual page 251

NetCol5000-A025 In-row Air Cooled Smart Cooling
Product
User Manual (300 mm Width)
Context
Figure 6-9
dryer after replacement.
Procedure
Step 1 Tap Shutdown on the LCD home screen and turn off the smart cooling product
switch in the PDC and the compressor switch QF3.
Exercise caution because the NetCol5000-A is still energized when it is being shut
down over the LCD.
Step 2 Reclaim all refrigerant from the system using a refrigerant retrieval device to
ensure that there is no pressure inside the system.
Step 3 Remove the liquid pipe NTC temperature sensor shown by (1) in
Step 4 Remove the welded filter dryer, as shown in
● Use copper welding rods to weld the connection ports and check that the
welding joints are in good condition, without poor soldering.
● To avoid burning the internal components, other pipes, thermal insulation
foam, power cables, and labels, take protective measures, such as spreading
wet cloth, around the welding position.
● Do not use face-down bonding.
Issue 15 (2020-12-10)
shows the filter dryer before replacement.
NO TICE
NO TE
Discharge the refrigerant if the local laws and regulations allow.
NO TICE
Copyright © Huawei Technologies Co., Ltd.
6 System Operation and Maintenance
Figure 6-12
Figure
Figure 6-15.
shows the filter
6-9.
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