The Bunn 11517

the York furnace rollout switch is factory-calibrated with a 225°F open point to immediately break the heating circuit upon detecting excessive heat

Durable Construction: Built to withstand the harsh thermal environment of a burner box without premature fatigue

The internal inherent motor protection and centrifugal oil pump ensure mechanical reliability under high-load residential or light commercial conditions

but it must be seated perfectly centered to avoid bypass leaks during the furnace's heat cycle

Carrier 50HJ403022 Ignitor Assembly The Bunn 11517Eliminate ignition lockout errors and restore reliable combustion with the Carrier 50HJ403022 Ignitor Assembly. Engineered as a direct OEM replacement for 48VL400002, this furnace ignitor is critical for maintaining the sequence of operation in Carrier, Bryant, and Payne package units and rooftops. As a veteran grade HVAC replacement part, it provides a consistent, high temperature spark or glow required to ignite gas across the burner crossover tubes