The disconnect for a piece of air conditioning equipment should equal what?

The disconnect for a piece of air conditioning equipment should align with the minimum circuit ampacity listed on the equipment dataplate. The minimum circuit ampacity provides a baseline for the electrical capacity necessary to ensure that the equipment functions properly and safely under its load without risk of overheating or damage. This rating is based on the specific electrical requirements of the unit, accounting for various factors such as the size of the compressor and fan motors, the type of wiring insulation used, and other operational characteristics.

Using the minimum circuit ampacity as the basis for the disconnect ensures that the circuit is adequately protected while allowing for efficient operation of the air conditioning system. This approach prevents nuisance tripping and ensures that the equipment can operate effectively within its designated electrical specifications. Properly matching the disconnect to the minimum circuit ampacity is critical for both safety and performance.