you would need to specify a Belimo series with an internal capacitor or spring return mechanism

Common Questions: Will this fit my specific model

Installation is streamlined with a removable movement that snaps into the case

Is the 43K53 compatible with other brands

Resideo ARD10TZ Damper R-134A you would need to specifyThe Resideo ARD10TZ is a 10 inch automatic round damper engineered for precise zone control in residential and light commercial HVAC systems. This 24VAC motorized damper features a two position actuator with a default power closed spring return open configuration, which is field reversible to suit specific sequence of operation requirements. Built with a galvanized steel mill finish shell and reinforced with synthetic bearings, the ARD10TZ ensures low