Which component of an A/C system is primarily responsible for refrigerant circulation?

The compressor is the key component responsible for refrigerant circulation in an A/C system. Its primary function is to compress the refrigerant gas, increasing its pressure and temperature. By doing so, it propels the high-pressure refrigerant through the system, initiating the refrigerant cycle.

Once the refrigerant is compressed, it moves into the condenser where it releases heat and transforms into a liquid state. This liquid then flows to the evaporator, where it absorbs heat from the indoor environment, causing it to evaporate back into a gas. The cycle continues as the compressor takes in this gas to repeat the process.

While the evaporator, condenser, and fan all play vital roles in the cooling process, it is the compressor that actively circulates the refrigerant throughout the system, making it essential for the system's operation.