Replacing The Welded Filter Dryer - Huawei NetCol5000-A025 User Manual

NetCol5000-A025 In-row Air Cooled Smart Cooling
Product
User Manual (300 mm Width)
the total refrigerant volume meets requirements. After verifying that the system is
working properly, exit from the diagnostic mode.
Step 11 Install the air filter and close the rear door.
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6.5.5 Replacing the Welded Filter Dryer

Prerequisites
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Context
Figure 6-9
Figure 6-9 Position of the filter dryer
(1) Liquid pipe NTC
temperature sensor
(4) Welding point B
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.
Issue 15 (2020-12-10)
The filter dryer needs to be replaced.
A spare filter dryer of the same model is available and functional.
Tools: welding equipment, refrigerant retrieval device (configured based on
local conditions), Phillips screwdriver, nitrogen cylinder, refrigerant tank,
vacuum pump, pressure gauge, leather hose, protective gloves
Preparation: Power off the indoor unit and reclaim all refrigerant from the
system.
shows the position of the filter dryer.
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6 System Operation and Maintenance
(2) Welding point A
(5) Welding point C
(3) Filter dryer
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