the F84-0433 is the mechanical valve component and works regardless of whether the actuator is a 2-wire or 3-wire motor configuration

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

L240) on your existing part to ensure the furnace maintains its safety and efficiency ratings

preventing common chatter or engagement issues associated with generic aftermarket alternatives

Optimized Efficiency: Low contact resistance of 50 milliohms minimizes voltage drop across the contacts to ensure maximum power delivery to the load

McDonnell & Miller AP-3-SS-J Probe Rod the F84-0433 is the mechanicalThe 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