Trane CNT4991 Pressure Switch 340793-762 the furnace failing to initiate

the furnace failing to initiate a flame cycle

which operates on 24VAC or 24VDC and provides reliable floating control

Built with a rugged metal enclosure

Engineered for precise fitment in Protech water heater systems

Rigid Construction: Manufactured to withstand the thermal stress and vibrations of power-vented water heaters

Trane CNT4991 Pressure Switch 340793-762 the furnace failing to initiateThe Trane CNT4991 is a 10 inch SPST pressure switch engineered for precise atmospheric monitoring in high efficiency Trane and American Standard HVAC systems. This OEM air pressure switch features a single pole single throw (SPST) contact configuration, rated at 0. 1" WC (water column) for low pressure detection. It is designed to interrupt or complete the 24V control circuit (rated at 28 VA) when specific airflow or flue gas pressure thresholds are