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Do I need to add refrigerant oil when replacing the air conditioning pressure switch?

1 Answers

DelHarmony

07/25/25 12:26am

Replacing the air conditioning pressure switch requires adding refrigerant oil. In the compressor, the refrigerant oil primarily serves four functions: lubrication, sealing, cooling, and energy regulation. Lubrication: The refrigerant oil lubricates the compressor during operation, reducing friction and wear, thereby extending the compressor's service life. Sealing: The refrigerant oil acts as a seal in the compressor, ensuring tightness between the piston and cylinder walls, as well as between rotating bearings, to prevent refrigerant leakage. Cooling: While lubricating the moving parts of the compressor, the refrigerant oil carries away heat generated during operation, keeping these parts at lower temperatures. This enhances the compressor's efficiency and operational reliability. Energy Regulation: For refrigeration compressors equipped with energy regulation mechanisms, the oil pressure of the refrigerant oil can be utilized as the driving force for the energy regulation system.

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