A commercial HVAC split system is a type of air conditioning system that is designed to provide cooling and heating to commercial buildings. It is composed of two main components: an outdoor condensing unit and an indoor air handler. The outdoor condensing unit contains the compressor, condenser coil, and expansion valve, while the indoor air handler contains the evaporator coil, blower, and filter. The condensing unit and air handler are connected by two refrigerant lines, which allow the refrigerant to flow between the two components. The refrigerant is then circulated throughout the building, cooling or heating the air as needed. Commercial HVACHVAC split systems are designed to be more efficient than traditional air conditioning systems, as they are able to provide cooling and heating in a more efficient manner. Additionally, these systems are more reliable and require less maintenance than traditional systems.