In HVAC systems, what is the purpose of a compressor?

The compressor in an HVAC system plays a critical role in the refrigeration cycle by increasing the pressure of the refrigerant. This process is essential because it allows the refrigerant to absorb and release heat efficiently. As the refrigerant passes through the compressor, it is compressed into a high-pressure gas, which subsequently increases its temperature. This high-pressure gas then moves to the condenser, where it releases heat and condenses back into a liquid before continuing the cycle.

The correct function of the compressor ensures that the HVAC system can effectively transfer heat from inside a building to the outside environment (in cooling mode) or vice versa (in heating mode). This function is foundational to the operation of air conditioning and refrigeration systems, making it vital for maintaining desired indoor temperatures.