Huawei NetCol8000-A013 User Manual page 126

NetCol8000-A013 In-room Air Cooled Smart Cooling
Product
User Manual (800 mm Width)
Prerequisites
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Context
Tools: flat-head screwdriver, welding tool, refrigerant reclaiming device (required
based on local conditions), nitrogen injection and pressure preservation tool,
vacuumization tool, refrigerant charging tool
Procedure
Step 1 Hold down
screen.
Step 2 Open the front door, and turn off the indoor unit power switch and the indoor
unit switch in the PDF.
Step 3 Remove the return air filter.
Step 4 Reclaim the refrigerant.
Step 5 Pry the EEV coil off using a flat-head screwdriver, as shown in
Step 6 Weld the two ends of the EEV using a welding torch, as shown in
Then, remove the EEV.
Figure 5-9 Removing the EEV
Step 7 Weld a new EEV, and install the coil for the EEV.
Protect the surrounding components during the welding process.
Issue 06 (2022-11-25)
An EEV or its coil needs to be replaced.
A spare EEV or a coil of the same model is available and functional.
on the home screen. Tap Yes on the shutdown confirmation
NO TICE
Copyright © Huawei Technologies Co., Ltd.
5 System Operation and Maintenance
Figure
Figure
5-9.
5-9.
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