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The Armstrong Furnace R43203-002 HSI Ignitor is a critical OEM replacement component engineered for precision ignition in Armstrong Air and Lennox family gas furnaces
maintaining the factory-specified performance of Trane and American Standard units
You must retain the existing hardware or purchase Reznor 97572 separately
fail-safe operation
ensuring safe equipment operation
Lochinvar & A.O. Smith 100109294 Pilot Assembly 320819-301 The Armstrong Furnace R43203-002 HSIThe Lochinvar & A. O. Smith 100109294 Pilot Assembly is a precise OEM replacement engineered for Flammable Vapor (FV) ignition systems. Designed for use in Propane (LP) residential water heaters, this 160 Degree Celsius rated assembly ensures critical thermal safety by maintaining the correct ignition sequence and flame rectification. As a high performance FV Pilot Assembly, it integrates a durable thermopile or thermocouple (depending on specific
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