As an essential component for 4 to 5-ton HVAC units

What is the significance of the intake side bore

This step-down control transformer features flexible input voltage taps at 120V

reducing wiring complexity and saving space in the electrical cabinet

and air handling assemblies

Carrier HH660103 Rollout Switch Kit 319847-401 As an essential component forThe Carrier HH660103 Rollout Switch Kit is a critical safety component designed for precise flame rollout protection in Carrier, Bryant, and Payne gas fired furnaces. This manual reset limit switch is calibrated to detect abnormal heat concentrations near the burner assembly, typically caused by heat exchanger failure, restricted flue passages, or insufficient combustion air. As a genuine OEM furnace replacement part, the HH660103 ensures the control