This board is designed for ambient operating temperatures common in mechanical rooms

For technicians servicing older infrastructure

The defining "Skipper" feature allows contractors to customize schedules by omitting operations on specific days of the week using specialized day-skipper screws

The DPT2640 series is built for reliability in demanding commercial applications

while EK164 identifies the model series

Lochinvar & A.O. Smith 100108844 Damper 318423-701 This board is designed forThe Lochinvar & A. O. Smith 100108844 is a professional grade 6" AL Base Style Flue Damper engineered to maintain high efficiency standards in residential and commercial heating systems. Serving as the direct, updated version for 9002537205, this motorized component is essential for modern HVAC technician workflows, ensuring that energy is preserved by preventing standby heat loss through the vent pipe when the burner is inactive. Constructed with a