Replacing A Filter Dryer (Welding) - Huawei NetCol5000-A050 User Manual

NetCol5000-A050 In-row Air Cooled Smart Cooling
Product
User Manual
Figure 11-26 Installing a filter dryer
1.
2.
Step 8 Perform a leakage test with nitrogen again. Refer to
Nitrogen for Refrigerant
Step 9 After checking that the smart cooling product does not leak, vacuumize the smart
cooling product, and charge refrigerant. Refer to
Precharging
Step 10 Power on the device and tap Start on the home screen. Ensure that the smart
cooling product is running normally without any alarms.
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11.9 Replacing a Filter Dryer (Welding)

Prerequisites
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Issue 13 (2023-08-20)
Apply red glue to the third to second last thread circles of the outer screw
thread counting from the pipe outlet inward. Secure the filter dryer nut and
pipe nut using two 27# adjustable wrenches respectively. Then tighten the
adjustable nut using a 36# adjustable wrench.
Reinstall the hold hoop.
Refrigerant.
A filter dryer needs to be replaced.
A spare welded filter dryer of the same model is available and functional.
Tools: welding equipment, refrigerant reclaiming device (configured based on
local conditions), Phillips insulated torque screwdriver, nitrogen cylinder,
refrigerant tank, vacuum pump, pressure gauge, rubber hose, protective
gloves
Preparation: Power off the indoor unit and reclaim the refrigerant in the
system.
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Pipes.
11 Parts Replacement
3.11 Leakage Test with
4.1 Vacuumizing and
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