Designed for 3/4 inch NPT pipe threads

or internal scale buildup that impedes float movement

and Comfortmaker furnace parts directories

This Erie zone valve assembly is designed for hot and chilled water applications with up to 50% glycol

Armstrong Furnace R47583-001 Control Board Freon Designed for 3/4 inch NPTThe Armstrong Furnace R47583 001 Control Board is a genuine OEM 2 stage ignition control board engineered for high efficiency heating systems. Designed for reliability in demanding environments, this integrated furnace control manages the complex ignition sequence and multi stage firing rates required by Armstrong Air, AirEase, Ducane, and Lennox equipment. This board features advanced electronic circuitry to ensure precise flame sensing and timing,