In simple terms, a split AC works by absorbing the heat and humidity from the room and releasing excess heat to the external environment. There are four main components in an AC system – Condenser Coil, Compressor, Evaporator Coil, and Expansion Valve. Let’s see how these different components are involved in the split AC working principle.

• The indoor unit absorbs heat and circulates it around the evaporator coil, which has the refrigerant. The refrigerant passes to the compressor.
• The compressor starts and creates high pressure to heat up the refrigerant. The hot liquid is then passed to the condenser coil in the outdoor unit.
• The outdoor unit circulates outside air, heats it up, and releases it back into the external environment.
• The hot refrigerant then passes through the expansion valve, which cools it up. And it is then sent back to the evaporator coil, thus completing a cycle.
• This cycle is repeated till the desired temperature in the room is maintained. The temperature is set and measured by the Thermostat. After the cooling is done, the compressor shuts down. It switches on again when the temperature rises.