Showing results 1 - 13 of 13
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A fresh air inlet is ducted to the return side of the home’s central air handler; a motorized damper and electronic controls help balance the flow of fresh incoming air with controlled exhaust to meet ventilation requirements
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Back-draft damper still has a piece of tape that prevented it from rattling during shipping
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Fans from seperate dwellings exhausted together without back-draft dampers and not sealed
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Packing tape has been removed and damper will be able to function properly once fan is installed
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Separate exhaust fans can share a common exhaust if each exhaust fan is equipped with a back-draft damper to prevent cross contamination
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Seperate dwellings with their own seperate exhaust terminations
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The back-draft damper on this exhaust fan is closed to prevent cross contamination
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The back-draft damper on this exhaust fan is open when the exhaust fan is operating
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The back-draft damper open when the fan is actively exhausting and closes when the fan is off
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The elevator shaft in this multistory multifamily building has an exhaust fan that maintains a slight negative pressure to control odors; there is also a smoke vent that is dampered closed during normal conditions.