If the measured ohms do not match the standard A99B resistance chart at a known temperature

handling the high-vibration environments typical of commercial chiller operations

It supports up to two-stage control of RTUs or three-stage control of heat pumps with integrated economizer control

Universal Compatibility: Optimized for use with POE and PVE lubricants and compatible with most HFC and HCFC refrigerants

Lochinvar & A.O. Smith 100274105 Igniter Assembly 320819-301 If the measured ohms doThe Lochinvar & A. O. Smith 100274105 Igniter Assembly is a critical combustion component engineered for high performance gas fired boilers and water heaters. As a veteran grade hot surface igniter, this assembly is designed to provide rapid, consistent ignition of the gas air mixture, ensuring a stable combustion cycle and reducing the risk of "flame fail" lockouts. This OEM replacement part includes a specialized gasket for igniter sealing,