this device features an automatic reset mechanism and is calibrated for an opening temperature range of 190°F to 230°F

or intermittent spark issues during HVAC system diagnostics

preventing common chatter or engagement issues associated with generic aftermarket alternatives

Does this unit require a specific voltage

Replace failing units with this high-efficiency step-down transformer to restore reliable 24V power to the burner secondary circuit

McDonnell & Miller AP-3-SS-J Probe Rod this device features an automaticThe McDonnell & Miller AP 3 SS J (Part Number 176231) is a heavy duty, 39 inch (991mm) stainless steel probe rod designed for high precision liquid level sensing in commercial and industrial boiler applications. Engineered for compatibility with conductance type level controls, this ambient probe provides the critical conductive path required for low water cut off (LWCO) and pump control sequencing. In the field, its 300 series stainless steel