Canfab economizers feature gear driven damper blades, color matching outside air intake hood with water entrainment filter and up to 100% barometric relief. Available controls packages include logic, discharge sensor, solid-state enthalpy, dry-bulb, or comparatitive enthalpy. Economizer motor options include fully modulating Honeywell, Belimo and Honeywell three position actuators. Economizer actuators are spring return for full 100% shutdown upon power loss All controls are fully integrated and factory installed. Wire harness and Molex style plugs are provided for easy installation where applicable. Economizers are available in horizontal or down discharge configurations. Heavy Gauge Galvanized Steel Construction. Gear Driven damper blades. Color Coordinated Paint Finish With 500 Hour Salt Spray Test. Capable of Approximately 75% to 100% Relief. Water Entrainment Intake Filters. Utilizes The HVAC Unit Filter Package. Low Leak Outside Air Damper.