Huawei FusionCol8000-E240 User Manual page 229

FusionCol8000-E240 Modular Indirect Evaporative
Cooling System
User Manual
Context
Reclaim or dispose of the refrigerant in accordance with the local laws and
regulations. During the reclaim process, the R410A refrigerant composition may
change. Therefore, you are not advised to refill the reclaimed R410A refrigerant to
the cooling system.
Procedure
Step 1 On the home screen of the display module, tap Shutdown and turn off the device
switch in the PDF.
Exercise caution because the device is still energized after it is shut down on the
home screen of the display module.
Step 2 Reclaim the refrigerant from the low pressure needle valve and liquid pipe needle
valve to ensure that there is no pressure inside the system.
Step 3 Remove the filter dryer.
● During welding, use a silver copper welding rod containing 5% silver. Check
that the welding joints are in good condition, without poor welding.
● 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 joints.
● Do not use face-down bonding when welding.
Figure 8-35 Removing the filter dryer
Issue 02 (2021-04-15)
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