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Broad Application: Validated for use in Lochinvar Copper-Fin II boiler models (CB 985-2065) and pool heaters (CS 985-2065)
Contractor-Grade Durability: Built to withstand the high-cycle demands of modern high-efficiency gas furnaces
this unit serves as a direct replacement for 3B1A
this valve is built to last
Armstrong Furnace R43110-002 Ignition Module Els PW 17895 Broad Application: Validated for useThe Armstrong Furnace R43110 002 Ignition Module (manufactured by Fenwal, model 35 615900 227) is a critical automatic ignition system designed for high reliability sequence control in residential and commercial furnaces. This 24 VAC ignition control board manages the direct spark ignition (DSI) process, featuring a precise 30 second pre purge, 15 second ignition period, and 30 second inter purge to ensure safe and efficient combustion. Engineered to