this hot surface ignitor is the standard replacement for various HE80 and HE95 commercial gas water heaters

Blower Coordination: Synchronizes the timing of the indoor fan with the heating elements to avoid "cold blow" at startup

close on fall refers to the switch making electrical contact as the pressure "falls" further into a negative vacuum (becoming more negative) to reach the set-points of -

Its adjustable temperature range and rugged construction make it the standard choice for maintaining optimal HVAC thermal management in residential and commercial hydronic loops

Precision Fit: Features an accurate sweat connection for permanent soldering to copper tubing

Rheem-Ruud 625040 Ignition Module Els PW 29614 this hot surface ignitor isThe Rheem Ruud 625040 Ignition Module is a high performance intermittent pilot ignition control engineered for 24VAC gas fired furnaces, boilers, and commercial water heaters. As a direct OEM replacement part, this module ensures precise HVAC system diagnostics and sequence control. It features a 1 second prepurge (1sPP) to clear the combustion chamber and a 90 second continuous trial for ignition (TFI) to provide a stable spark for reliable burner