Maintains the reliability of the magnetic switching mechanism by eliminating the need for bellows

or the system throwing a "pressure switch stuck open" error code during the pre-purge cycle

this assembly is a standard choice for technicians servicing medium-temperature systems

The close-wound coil is designed for field-stretching

This 18-240 VAC universal voltage timer features a knob-adjustable delay ranging from 0

Armstrong Furnace R42640-001 Ignitor/Sensor Els PW 17895 Maintains the reliability of theThe Armstrong Furnace R42640 001 Ignitor Sensor is a critical OEM replacement part designed for precise ignition and flame rectification in residential HVAC systems. Engineered as an ignitor sensor less pilot assembly, this component ensures reliable burner cycles by providing the necessary spark and feedback signal to the furnace control board. Transitioning to a high performance silicon nitride ignitor configuration often improves longevity over