Always calculate your RPM ratios based on the specific belt section used

The assembly features a factory-fitted MP84 pneumatic actuator with a 9-13 PSI spring range and spring return safety functionality

providing seamless compatibility with various controllers

You must match the specific dash number (-013) to ensure the purge and ignition timings meet the appliance's safety requirements

Velocity Boiler Works (Crown) 3503800 Pressuretrol 322838-754 Always calculate your RPM ratiosThe Velocity Boiler Works (Crown) 3503800 Pressuretrol is a high performance steam boiler pressure switch engineered for precise control and automatic limit protection. Designed for heavy duty HVACR applications, this Honeywell compatible pressure controller utilizes a rugged stainless steel diaphragm and a durable brass body to ensure long term reliability in high pressure environments. By monitoring system pressure and acting as an operating