Which component of a split system is located outside the building?

In a split system, the compressor is the component located outside the building. The compressor plays a critical role in the refrigeration cycle, as it compresses the refrigerant, raising its pressure and temperature so that it can flow through the system. Once the refrigerant is compressed, it moves to the condenser, which is also outside, where it releases heat and transforms from a gas back into a liquid.

The components like the evaporator coil and the air handler are typically found indoors. The evaporator coil absorbs heat from inside the building, while the air handler circulates air throughout the indoor space. The thermostat, which controls the temperature by signaling the system to turn on and off, is usually installed inside the building as well.

Understanding the layout and functions of these components is essential for effectively servicing and troubleshooting HVAC systems.