Haier GE ABE21D, Техническое обслуживание руководство, Страница: 39 / 41

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Replacing Sealed System Components
Evacuation and Charging Procedure
The following information covers the evacuation and charging procedure for sealed system work.
WARNING:
‡ Before cutting or using a torch on refrigerant tubes, recover the refrigerant from the system using
approved recovery equipment.
‡ Never charge new refrigerant through the purge valve. This valve is always located on the high
pressure side of the system.
‡ Never apply heat from any source to a container of refrigerant. Such action will cause excessive
pressure in the container.
‡ Always wear appropriate PPE (Personal Protective Equipment) when working with refrigerants and
nitrogen holding a charge in some replacement parts. Contact with these gases may cause injury.
1. Evacuate the system to ~20-in. vacuum using the refrigerator compressor and/or recovery pump.
2. Purge the system using nitrogen at 25-35 SCFH.
3. Perform necessary repairs to the sealed system.
4. Pressurize the system to 250 PSIG with nitrogen and test for leaks.
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the system back into a vacuum.
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the instruction sheet included with the component being replaced.
7. Reinstall caps to Schrader ports.