Huawei NetCol5000-A025 - Replacing the Welded Filter Dryer

the total refrigerant volume meets requirements. After verifying that the system is
working properly, exit from the diagnostic mode.
Step 11 Install the air lter and close the rear door.
----End
6.5.5 Replacing the Welded Filter Dryer
Prerequisites
● The
lter dryer needs to be replaced.
● A spare lter dryer of the same model is available and functional.
● Tools: welding equipment, refrigerant retrieval device (congured based on
local conditions), Phillips screwdriver, nitrogen cylinder, refrigerant tank,
vacuum pump, pressure gauge, leather hose, protective gloves
● Preparation: Power
o the indoor unit and reclaim all refrigerant from the
system.
Context
Figure 6-9 shows the position of the
lter dryer.
Figure 6-9 Position of the lter dryer
(1) Liquid pipe NTC
temperature sensor
(2) Welding point A (3) Filter dryer
(4) Welding point B (5) Welding point C
Procedure
Step 1 Tap Shutdown on the LCD home screen and turn o the smart cooling product
switch in the PDC and the compressor switch QF3.
NetCol5000-A025 In-row Air Cooled Smart Cooling
Product
User Manual (300 mm Width) 6 System Operation and Maintenance
Issue 15 (2020-12-10) Copyright © Huawei Technologies Co., Ltd. 234