including those stamped with 311747

Standard configuration uses Port M for main air

Operating at 1

the LED will illuminate

Versatile Compatibility: Supports multiple valve strokes and operating spans (3

York S1-024-19082-020 Sequencer Relay including those stamped with 311747The York S1 024 19082 020 Sequencer Relay is a high performance 24V heat sequencer engineered to manage the staged activation and deactivation of electric heating elements within a furnace or air handler. Designed for direct OEM replacement, this heavy duty relay prevents excessive current draw and electrical overload by staggering the startup of multiple heat banks. It operates on a 24VAC control circuit, featuring precise timing intervals: the