What are the two most common types of compressors used in residential air conditioning systems?

The two most common types of compressors used in residential air conditioning systems are reciprocating and scroll compressors.

Reciprocating compressors operate using a piston mechanism that compresses the refrigerant gas. They are widely used in various applications due to their ability to handle a wide range of refrigerant types and varying load conditions, making them effective for residential HVAC systems.

Scroll compressors, on the other hand, use a spiral design that allows for continuous compression of the refrigerant gas. This design tends to be quieter and more efficient than reciprocating types, which contributes to their popularity in modern residential air conditioning systems.

Both types serve the fundamental role of compressing refrigerant, but their mechanisms and efficiencies can differ significantly, influencing their suitability for different applications. Understanding these differences helps technicians select the right compressor for specific cooling requirements in residential setups.