Lochinvar & A.O. Smith 100277835 Kit 321894-709 This is a momentary on

This is a momentary on switch (OFF/MOM-ON)

High Power Capacity: The 70VA rating provides ample headroom for complex multi-stage systems and accessorized air handlers

this specific kit is calibrated strictly for R410A refrigerant pressures and temperatures

The galvanized steel construction provides the structural rigidity required to withstand high-velocity operational loads without blade deformation

OEM Recommended: Recognized and recommended by major equipment manufacturers for post-burnout cleanup

Lochinvar & A.O. Smith 100277835 Kit 321894-709 This is a momentary onThe Lochinvar & A. O. Smith 100277835 Kit is a critical Venturi High Modulation assembly designed for precision air to fuel ratio control in high efficiency condensing boilers and water heaters. Engineered for natural gas systems, this 24 mm venturi ensures consistent performance across the full turndown range, or 5: 1 firing rate, by precisely mixing gas and air before delivery to the radial fire burner. This OEM replacement part is essential for