Use a manometer to verify if the draft exceeds the -

Automatic Safety Shut-off: Integrated ball checks provide immediate protection against leaks if the gauge glass is compromised

What are the electrical ratings for the contacts

this centrifugal blower maintains the pressure required to close the integrated pressure switch

Williams P626765 Motor 340793-762 Use a manometer to verifyThe Williams P626765 Motor is a high performance, 4 speed blower motor engineered specifically for technical compatibility with Williams fan coil units and air handler systems. Operating at 277V single phase, this 1 15 HP motor delivers a consistent 1100 RPM rotation speed, providing technicians with the versatile airflow control required for precise HVAC balancing. Built with a compact and rugged frame, the P626765 serves as a direct OEM replacement