What is a scroll compressor?

A scroll compressor is a specialized type of compressor that operates using two interlocking spiral-shaped metal scrolls that rotate and compress refrigerant within an HVAC system.

What is a scroll compressor?
A compressor is a key component in an HVAC system that pressurizes gaseous refrigerant so it can move through the refrigerant coil and circulate into your home to cool the air. A scroll compressor is a specific type of compressor that uses two interlocking spiral-shaped metal scrolls, rather than traditional pistons, to compress the refrigerant.

A scroll compressor operates with one fixed scroll and one orbiting scroll. As the orbiting scroll moves in a circular motion within the stationary scroll, pockets of refrigerant are gradually drawn in, trapped, and compressed toward the center. This continuous compression process increases the pressure and temperature of the refrigerant, making scroll compressors highly efficient, smooth, and reliable.

What are scroll compressors used for?
Scroll compressors are widely used across several applications, but they are most commonly found in small to medium HVAC systems. In these systems, the scroll compressor draws in refrigerant, compresses it, and sends it to the condenser coil so it can circulate through the home and cool the air. Because of their efficient compression process, scroll compressors offer reliable cooling performance while consuming less energy than many traditional compressor types.

They are also valued for their quiet operation. Unlike piston compressors, which generate more mechanical noise, scroll compressors operate smoothly with fewer moving parts. This makes them a preferred choice for residential and light commercial HVAC systems where lower indoor noise levels are important.

Benefits of using a scroll compressor
Scroll compressors are increasingly preferred in many HVAC applications because of their high efficiency and long-term reliability. They take up less space than traditional piston compressors and are capable of handling higher pressures without the need for extra components or frequent maintenance. Their smooth, continuous compression process also makes them significantly quieter, which helps improve overall indoor comfort.

Another major advantage is their extended lifespan. With fewer moving parts and reduced mechanical stress, scroll compressors tend to last longer and experience fewer breakdowns. In addition, they operate more efficiently, requiring less energy to achieve the same cooling output. This improved energy performance can translate into noticeable cost savings over time, making scroll compressors a smart choice for both residential and commercial HVAC systems.

How to upgrade to a scroll compressor
If you’re thinking about upgrading your HVAC system to one that uses a scroll compressor, the best place to start is by consulting a qualified HVAC technician. A professional can evaluate your current system, determine compatibility, and recommend the most suitable scroll-based unit for your specific cooling needs. Once the new system is installed, the technician can also provide ongoing maintenance and support to ensure optimal performance and long-term reliability.