What defines a split system in HVAC?

A split system in HVAC is defined as one that includes both indoor and outdoor components, which work together to provide heating and cooling to a space. The indoor unit typically contains the evaporator coil and blower fan, while the outdoor unit houses the condenser and compressor. This configuration allows for efficient regulation of indoor temperatures as the system can effectively transfer heat between the indoor and outdoor air.

The design and separation of components enhance installation flexibility, making it suitable for various building types. Furthermore, the split system's operation allows for specific temperature management and improved energy efficiency, as the outside unit can dissipate heat away from the building effectively. This separation also minimizes noise inside the home from the compressor.

Understanding this structure clarifies why options like a system that operates only indoors or one that has only one heat pump are not accurate definitions of a split system; they do not encapsulate the essential feature of having both indoor and outdoor parts working in tandem. Additionally, the choice regarding ductwork is not relevant since split systems can be designed to use ductwork or function as ductless systems, separating them from the definition strictly.