What is the purpose of a capacitor in a split system air conditioner?

A capacitor plays a crucial role in the electrical system of a split system air conditioner by providing the necessary electrical energy to start and run the compressor and fan motors. When the air conditioning system is activated, the capacitor stores electrical energy and releases it when needed, allowing the motors to achieve the high torque required to start turning. Once the motors are running, the capacitor continues to help maintain the voltage levels for smooth operation. This function is vital for the efficient performance and reliability of the air conditioning system.

Other purposes outlined, such as maintaining a constant temperature, filtering contaminants, or regulating refrigerant flow, do not involve the capacitor’s functionalities. Instead, these tasks are managed by the thermostat, air filters, and expansion devices respectively.