This manual fresh air damper accessory is designed to regulate outdoor intake ventilation on compatible rooftop air conditioners and packaged systems. Constructed from sturdy galvanized steel, it incorporates a fixed 25% open position that allows a continuous stream of fresh air into the building, optimizing indoor air quality for occupants.
Commercial HVAC contractors and building facility managers select this specific kit when looking to meet basic ventilation criteria or supplement localized mechanical ventilation needs without electronic actuators. It fits seamlessly onto designated 7.5 to 12.5-ton outdoor condenser or packaged equipment configurations, providing a durable physical barrier against larger outdoor debris.
Before purchasing, verify your unit tonnage and physical model dimensions to ensure an exact fit with your existing cooling equipment cabinet. The complete package contains a hood top, hood sides, an inlet screen, an opening panel, and hardware, enabling straightforward onsite assembly and an airtight seal against the primary air handler.









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