This model is the direct replacement actuator for several legacy units

This immersion-style temperature control features a single-pole

Designed for high-stability performance

To maintain peak system efficiency and correct static pressure

Zero Minimum Pressure: Operates effectively even in systems without a pressure differential

Lochinvar & A.O. Smith 100208350 Orifice 319825-402 This model is the directThe Lochinvar & A. O. Smith 100208350 Orifice is a precision machined main burner natural gas orifice engineered for high efficiency boiler and water heater applications. Designed with a . 1260" orifice size and a standard 1 8 27 NPT connection, this component ensures the exact fuel to air ratio required for stoichiometric combustion in Lochinvar CB 045 180 series boilers. As a genuine OEM replacement part, it maintains the pressure drop