McDonnell & Miller 51-HD Mechanism Els PW 17895 it ensures exact drop-in compatibility

it ensures exact drop-in compatibility with the original mounting hardware and harness

This HVAC sequencer utilizes factory-calibrated time delays to prevent electrical overloads and nuisance tripping by staggering the inrush current of high-wattage heating elements

ensure your specific wiring diagram matches the module's 24V output ratings for the gas valve and secondary controls

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Universal Compatibility: Fits a broad range of Danfoss EV series pulse-operated and standard solenoid valves

McDonnell & Miller 51-HD Mechanism Els PW 17895 it ensures exact drop-in compatibilityThe McDonnell & Miller 51 HD Mechanism (Part Number 134900) is a heavy duty mechanical water feeder designed for low pressure steam and hot water boilers. Engineered for high capacity applications, this replacement water feeder head maintains precise water levels in vessels with a maximum pressure of 35 PSI. As a veteran technician knows, the heavy duty 51 HD series is built to withstand more demanding cycles than standard residential feeders,