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Less Aspirator
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
Electrical Isolation: Efficiently switches high-current fan loads using a low-voltage 24V control signal
Lochinvar & A.O. Smith 100110799 Damper Drive 321894-709 Less AspiratorThe 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
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