Replacement Motor

This replacement air pressure switch is engineered for HVAC furnace systems requiring reliable pressure detection and safety control. Calibrated to 1.0 inch water column (in-WC), this switch is designed to detect pressure drops within ductwork and heat exchanger systems, automatically responding with a close-on-fall (on fall) operation to interrupt power and prevent unsafe furnace operation. The single pole normally open (SPNO) contact configuration ensures dependable switching action when pressure conditions fall below the calibrated threshold, making it ideal for both residential and commercial heating applications. The switch features a single pole design with proven reliability in demanding HVAC environments. As an original equipment manufacturer (OEM) component, it meets the stringent performance standards required for furnace safety systems. The unit is manufactured in Costa Rica to exacting quality specifications, ensuring consistency and durability across multiple heating seasons and operational cycles. This pressure switch is commonly specified in forced-air furnace systems where draft inducer motors, blower controls, and ignition safety circuits depend on accurate pressure sensing. By monitoring air pressure differential across the heat exchanger or in the furnace cabinet, the switch provides critical fail-safe protection that prevents flame rollout, incomplete combustion, and other dangerous operating conditions. Ideal for HVAC technicians, contractors, and facility managers performing furnace maintenance or replacement work, this pressure switch offers a direct replacement solution for equivalent applications. Its straightforward installation and proven performance characteristics make it a trusted component in commercial and residential heating systems where safety and reliability are paramount.