A split system HVAC is a type of air conditioning system that divides the key components into two main units: the outdoor unit and the indoor unit. The outdoor unit contains the compressor and condenser, while the indoor unit typically houses the evaporator coil and air handler or furnace. This separation allows for more efficient cooling, quieter operation, and easier installation compared to traditional single-unit systems.

A split HVAC system offers several advantages over traditional combined units. Firstly, it provides flexibility in installation, as the indoor and outdoor components can be placed separately, allowing for optimal positioning and space utilization. This separation also results in quieter indoor operation since the noisier components, like the compressor and fan motor, are located outside.

They allow for targeted heating or cooling in specific areas or rooms, leading to increased energy efficiency and cost savings. Since the noisy components, like compressors and motors, are located outside, split systems tend to operate more quietly than traditional units. The separation of indoor and outdoor units also means that there's no need for ductwork, making installation easier, especially in homes or buildings without existing ducts.