Which component is primarily responsible for compressing refrigerant in a system?

The component primarily responsible for compressing refrigerant in an HVAC system is the compressor. It plays a critical role in the refrigeration cycle by raising the pressure and temperature of the refrigerant vapor that has absorbed heat from the indoor environment. The compressor takes in low-pressure refrigerant gas from the evaporator and compresses it into a high-pressure state before sending it to the condenser. This process is essential for the efficient operation of the system, allowing heat to be expelled to the outside environment and providing cooling indoors.

The compressor also maintains the flow of refrigerant through the system, ensuring that it continues to cycle effectively and facilitates the heat exchange processes that provide cooling. Understanding the compressor's function is crucial for diagnosing and servicing HVAC systems, as any issues with this component can lead to reduced efficiency or failure in temperature control.