Lochinvar & A.O. Smith 100108635 Orifice L99H008 While the unit is charged

While the unit is charged with POE for R-404A compatibility

ensuring reliable performance by verifying proper inducer motor operation and venting pressure before allowing the ignition sequence to proceed

fast wiring in the field

this specific control is designed for 24 VAC (18-30 VAC) input only

The Packard electrical connection ensures a moisture-sealed interface

Lochinvar & A.O. Smith 100108635 Orifice L99H008 While the unit is chargedThe Lochinvar & A. O. Smith 100108635 is a precision engineered natural gas orifice designed for high efficiency commercial water heaters and boilers. This #33 drill size orifice is machined from durable 3 8" hex brass, ensuring consistent thermal resistance and reliable gas flow regulation under varying manifold pressures. As an essential component for stoichiometric combustion, this replacement gas orifice maintains the specific BTU input required