Always verify your specific furnace model number for exact fitment

while the 1/2 PSI maximum pressure rating ensures stability in high-demand environments

significantly reducing intermittent burner lockouts and "no heat" calls

It is also a verified Lochinvar Knight part (100110899)

ensuring a technician or operator must inspect the system following a low water condition

Trane ACT0471 Actuator R-407C Always verify your specific furnaceThe Trane ACT0471 Actuator is a high performance rotary NSR actuator designed for critical HVAC damper control in commercial and industrial air handling systems. This secondary market essential, often cross referenced as Trane ACT00471, features a non spring return (NSR) mechanism, ensuring that the damper remains in its last commanded position during a power loss to prevent rapid system fluctuations. Engineered for 24V direct coupled applications,