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UNIVERSAL
AUTOMATIC
MAKE-UP AIR DAMPER
Broan's Universal Automatic Make-up Air
Damper provides interlocked damper operation
so outside air is only allowed to enter the house
when a connected fan or hood is operating.
For use with any Broan or Best hood operating
over 400 CFM.
Model MD6TU (for 6" round duct)
Model MD8TU (for 8" round duct)
Meets IRC Code M1503.4
•
24 Volt, 60 Hz AC motor
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Normally closed damper
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Automatically opens when exhaust fans are activated
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Foam seals minimize air leakage
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24 gauge galvanized steel construction
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Damper adjustment screw for balancing adjustments
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Use with Fresh Air Inlet Model 641FA for 6" dampers
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or Fresh Air Inlet Model 643FA for 8" dampers (sold
separately)
Includes 24 Volt 20VA transformer
•
Includes pressure switch kit
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SPECIFICATION SHEET
Model MD6S
Model MD6TU
Model MD8S
Model MD8TU
Model MD6S (for 6" round duct)
Model MD8S (for 8" round duct)
Use with the MD6TU or MD8TU when additional
•
dampers are required to meet code requirements.
Can be ganged and controlled using any Broan
•
damper containing a transformer (MD6TU, MD8TU,
SMD6, SMD8, MD6T/6TR, MD8T/8TR).
Pressure Switch Kit
Included with
MD6TU & MD8TU
Broan-NuTone LLC Hartford, Wisconsin www.broan.com 800-558-1711
REFERENCE QTY. REMARKS Project
Location
Architect
Engineer
Contractor
Submitted by Date
21C 99044956A
Transformer
Included with
MD6TU & MD8TU
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