Residential split system outdoor condensing units are typically wired with which type of power supply?

Residential split system outdoor condensing units are designed to operate efficiently within the voltage range commonly found in residential settings. The standard power supply for these units is 208 volt / 240 volt single phase. This voltage range allows them to effectively power the compressor and fan motors required for cooling while accommodating the electrical systems typically present in most homes.

Using this voltage level provides the necessary balance between sufficient power and safety, minimizing risks of overload and ensuring that residential circuits can handle the load. It's important to note that while 120 volt single-phase power is commonly used for smaller appliances and general household use, it does not provide enough power for the larger components in a split system.

Higher voltages like 480 volt three phase are generally used for commercial or industrial applications, where larger equipment demands more power and efficiency. Similarly, 277 volt single phase is primarily used for lighting, not standard residential cooling systems. Thus, the choice of 208 volt / 240 volt single phase aligns perfectly with the needs of residential air conditioning systems.