If the hot surface ignitor serves as a flame sensor (flame rectification)

and electrical specifications for older boiler models

preventing excessive static pressure build-up that can lead to blower motor strain and increased duct noise

This assembly is primarily used in Weil McLain LGB

this York genuine part is rated for the pressures found in modern commercial refrigeration and air conditioning systems where the 026-17581-000 is specified by the manufacturer

Johnson Controls MP865D001G Actuator Els PW 29614 If the hot surface ignitorThe Johnson Controls MP865D001G is a heavy duty 100 square inch pneumatic valve actuator engineered for precise proportional control in commercial HVACR systems. This unit provides a 1 1 8 inch stroke and operates within a 4 8 PSI spring range, ensuring reliable spring return stem up positioning upon loss of air pressure. Designed as the direct replacement for MP865D001, it features a rugged diaphragm actuator housing capable of withstanding a 25 PSI