The 3L09-1 is an auto-reset limit switch

eliminating hardware mismatching during HVAC system diagnostics

The CCW (counter-clockwise) rotation and thermally protected internal windings make this furnace blower motor a standard for reliability in high-cycle environments

This unit features a robust stainless steel or high-grade composite construction to handle common pressure spikes and environmental vibration without significant signal drift

Terminals 1 and 2 provide 24V power

AERCO 124136 SSOV Body 321894-708 The 3L09-1 is an auto-resetThe AERCO 124136 SSOV Body is an essential genuine OEM replacement part designed for high efficiency commercial heating systems. This 2 inch safety shut off valve body serves as the critical structural housing for the gas trains safety assembly, ensuring precise fuel flow control and system integrity. Engineered from solid stainless steel, the AERCO 124136 is built to withstand demanding boiler environments, offering superior corrosion resistance and