If your multimeter identifies an open circuit or resistance exceeding 200 ohms

while an internal test lever facilitates quick system checkouts and verification of contact operation during routine maintenance

or fault codes related to discharge air temperature limits on the control board

Exact Compatibility: Direct replacement for BNR3430

Maxitrol M511R-3/4 Valve Els PW 17895 If your multimeter identifies anThe Maxitrol M511R 3 4 is a precision engineered modulating gas valve specifically designed for direct fired burners in negative pressure (pull through) systems. As a critical component of the Maxitrol Selectra Series 14, 44, 94, and SC10 control systems, this valve provides instantaneous, non fluctuating temperature control without the need for mechanical motors or butterfly linkages. It features a 3 4" NPT connection and a right side outlet