What is the primary function of the condenser fan in split-system air conditioners?

The primary function of the condenser fan in split-system air conditioners is to cool the refrigerant by turning it into a liquid. In the refrigeration cycle, after the refrigerant has absorbed heat from inside the building and has become a low-pressure gas, it is compressed by the compressor, raising its pressure and temperature.

The high-pressure, high-temperature gas then flows into the condenser coil, where the fan plays a pivotal role. The fan draws air across the condenser coil, facilitating heat exchange. As air passes over the coil, it removes heat from the refrigerant, allowing it to cool down sufficiently to transition from a gas to a liquid state. This process is essential, as it enables the refrigerant to return to the evaporator coil and continue the cycle of absorbing heat from the indoor environment.

This cooling effect is crucial for the efficient operation of the air conditioning system, ensuring that the refrigerant can effectively absorb heat and maintain the desired indoor temperatures.