Field technicians should verify flame rectification current using a multimeter in series with the sensor lead to ensure it meets the HVAC furnace parts specification of the OEM controller

it provides the necessary amperage to drive contactors

The AM-122 is fully interchangeable with industry equivalents A-3795 and EYCC-519

The Weil McLain 383-500-630 Gauge Assembly is a high-precision OEM replacement component engineered specifically for Weil McLain Ultra series boilers

crucial for sensitive control circuits

Cleveland Controls AFS-305 Switch Els PW 17895 Field technicians should verify flameThe Cleveland Controls AFS 305 is a high performance differential pressure switch engineered for precise monitoring of air flow and pressure in commercial HVACR systems. This manual reset air switch features an adjustable set point range from 0. 40" 0. 06" to 12. 0" w. c., making it ideal for clogged filter detection and burner fan supervision. Built with a robust SPDT contact arrangement and a 1 2 PSI maximum pressure rating, the AFS 305 ensures