selecting the correct sheave diameter and bore size is critical to maintaining the engineered CFM output and preventing premature V-belt wear

OEM Compatibility: Designed as a direct-fit York replacement part

Compatibility: Engineered specifically for Bell & Gossett Series 1510

allowing technicians to simultaneously trip a fan motor and trigger a remote alarm or BMS signal when the sensed temperature across any one-foot section of the bulb drops to the setpoint

Trane CNT5641 Pressure Switch 328140-751 selecting the correct sheave diameterThe Trane CNT5641 Pressure Switch (regularly superseded by CNT05641) is an essential OEM HVAC replacement part designed for precision airflow monitoring in residential and commercial heating and cooling systems. This SPST air pressure switch features snap acting contacts and is rated for 28VA pilot duty at 24VAC, ensuring reliable communication with the furnace control board. Engineered to engage at 0. 10" WC, it prevents the ignition sequence if the