Lochinvar & A.O. Smith 100110799 Damper Drive 321894-709 Simplified Installation: Designed for sweat-on

Simplified Installation: Designed for sweat-on application with extended connections that protect the internal element during brazing

you must use a capacitor rated for at least 370V or 440V to prevent dielectric breakdown and premature motor failure

the motor maintains a consistent torque profile while adjusting airflow to match the modulated burner firing rate

Minimal Maintenance: The free-floating lever mechanism reduces friction points

the ZF09K4E-TF5-931 utilizes liquid injection technology to manage discharge temperatures effectively

Lochinvar & A.O. Smith 100110799 Damper Drive 321894-709 Simplified Installation: Designed for sweat-onThe Lochinvar & A. O. Smith 100110799 Damper Drive is a critical flue damper actuator designed for 6 inch venting systems on high efficiency commercial boilers and water heaters. Engineered as the direct 192957 004 replacement part, this 24V motorized drive ensures precise control of the combustion air path, preventing standby heat loss during off cycles. It features a high torque internal motor assembly and integrated end switches that provide