Which is a common type of HVAC system?

A split system is commonly used in HVAC applications and refers to a system that consists of two main components: an outdoor unit, which typically houses the compressor and condenser, and an indoor unit that contains the evaporator coil and air handler. This separation allows for more efficient temperature control and the cooling or heating of indoor spaces while keeping the noisy components outside.

The popularity of split systems is due to their versatility, energy efficiency, and ability to provide both heating and cooling, often in a more compact installation compared to other systems. They are particularly advantageous in residential applications where space is limited, as well as in larger commercial buildings where multiple zones need to be controlled independently. The ability to connect multiple indoor units to a single outdoor unit further enhances their practicality for various building layouts.

In contrast, centralized systems typically require extensive ductwork and may be less efficient in spaces where zones need to be independently controlled. Unitary systems also refer to complete units that include both the heating and cooling components in one package, but they aren't as commonly referenced as split systems in contemporary HVAC design discussions.