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MD6TU6" Universal Automatic Make-Up Air Damper with Pressure Sensor Kit

  • Overview
  • Video Links
  • Make-Up Air Specifier
  • Specifications
  • Accessories
  • Reviews
  • Answers
  • Designed to provide the best technology to equalize pressure between indoors and outdoors, while providing effective ventilation for a cleaner, healthier home. Eliminate gases, smoke or particulates generated from naturally vented combustion devices like a fireplace or water heater. Only BROAN offers such a complete and simple solution for automatic and controlled fresh air into the home every time you turn on the range hood! This is an interlocked, synchronized system that installs easily and requires only low voltage wiring to the sensor. Perfect for new construction or retrofit into an existing home.

    • BROAN® interlocked make-up air dampers provide outside air when required to keep the air in the home fresher by allowing the range hood to operate at optimum levels
    • Universal design works with any BROAN® range hood to balance indoor air pressure by providing interlocked make-up air without requiring a direct wire connection between the range hood and the damper. Instead a sensor is attached to the exhaust duct to detect if the range hood is operating
    • Slave dampers (MD6S, MD8S or MD10S) are interlocked to the main automatic or universal make-up air damper and open in unison for synchronized operation. They close, along with the main damper, as soon as the range hood is powered off. Slave dampers can be “ganged” together to provide a cost effective means to provide for higher volumes of make-up air
    • Interlocked make-up air damper systems meet IRC Code requirements for make-up air with range hoods over 400 CFM
    • Interlocked make-up air systems avoid wasted energy associated with barometric solutions and do not let unwanted air into the home during heating or cooling activities so air pressure is equalized for a well-balanced environment
    • Fresh air wall caps are required for use with Make-Up Air Dampers
  • Video Links

    Broan Universal Make-Up Air Damper

    Residential Kitchen Make-Up Air Webinar September 24, 2013

    Cleaning a Range Hood Filter – Danny Lipford

    Proper Use of a Range Hood- Danny Lipford

    How to Ventilate the Whole House

    Proper Ventilation Equals A Healthy Home - Danny Lipford

    What are CFMs? - Danny Lipford

    Range Hood & Ventilation Fans Tip - Check Terminations of Ventilation Ducts

    How do I determine the size of the range hood I need? - Danny Lipford

    Is there any regular maintenance needed on my range hood? - Danny Lipford

    Does an Over the Range microwave provide adequate Capture? - Danny Lipford

    Give Your Kitchen a 72-Hour Facelift with Danny Lipford

    Island Range Hoods for Kitchen Upgrades - Danny Lipford

    Importance of a Range Hood for Indoor Air Quality

    Kitchen Renovation Includes Adding Range Hood with Danny Lipford

    Can I install a range hood without venting it? - Danny Lipford

    Article Links

    Keep your kitchen clear of smoke and fumes. Don't neglect ventilation when remodeling your kitchen, ConsumerReports.org

    Cook with a gas stove? You could be breathing polluted air, study says, Los Angeles Times

    Using gas stoves with no hood may expose many to air pollution, UPI Health News

    Breathe Easy – What you need to know to ensure proper home ventilation, K+BB

    5 Kitchen Renovation Goofs To Avoid, Consumer Reports

    Clearing the Air, K+BB

    The Kitchen as a Pollution Hazard

    Fixing Stove Hoods To Keep Pollution Out Of The Kitchen

  • Range Hood Make-Up Air Specifier

    Code compliant make-up air solutions for domestic range hoods in family dwelling units


    To help you determine your customers’ make-up air needs, Broan-NuTone has developed this on-line tool.  With our Make-Up Air Specifier you can be confident that the products you choose will meet the latest codes and regulations and satisfy the home’s needs.  Use this tool to make your specification job easier.


    Let’s get started by selecting the state where the dwelling unit will be located. CLICK HERE

  • What is the difference between the MD6T and the MD6TU?

    Asked by: Jud
    Thank you for the question on the models MD6T and MD6TU make up dampers. The MD6T is a six inch automatic make-up air damper. The MD6TU is the same damper as the MD6T but it includes a pressure sensor kit. The MD6T is used with specific models. The MD6TU is a universal make-up air damper that can be used with any Broan hood. You can compare the spec sheets on our web site or contact the Technical Service Department at 800-637-1453 for further assistance.
    Answered by: BroanCustomerService
    Date published: 2017-04-26

    interlocking with HVAC blower

    How would one go about interlocking the MD6TU damper with the HVAC blower and the kitchen hood exhaust? I plan on connecting the damper to the return side of the HVAC system and the pressure switch is connected to the exhaust side of the exhaust hood so that when the exhaust is on, the damper will open. How do I go about turning on the HVAC blower (fan) when the damper is open so that I can circulate the air through the filter? Do I just wire the 24V wire to the G terminal of the HVAC controller? Thanks.
    Asked by: Henry
    Thank you for your question on the MD6TU make-up air damper. Unfortunately, we do not have any type of interlock accessory for this unit. This model was not intended for use as you have described. We would recommend that you contact your HVAC contractor for their feedback on your proposed installation.
    Answered by: BroanCustomerService
    Date published: 2017-02-03

    What part should I use where the intake must be through the roof?

    Asked by: Bill
    Thank you for your question on the model MD6TU make up air damper. The MD6TU is designed to be used with six inch duct work and a 6" fresh air intake wall cap with only a bird screen and no damper. 641AF is Broan's aluminum 6" fresh air inlet. It is not recommended to be installed with a roof cap for air intake because the vent always needs to be clear of any obstructions such as snow. Please contact the Technical Service Group at 800-637-1453 if you'd like to discuss your installation.
    Answered by: BroanCustomerService
    Date published: 2013-10-23

    Damper operation options

    I live in Minnesota, so I don't want to simply have a hole in the wall that opens when the range hood is on if the outside temp is -10 degrees. Thus, I am trying to source parts to create a Make-Up Air (MUA) divert attached to the HRV. I want to install the damper on the exhaust side of the HRV, such that when the hood is on, the tempered exhaust air is re-routed back to the house interior rather than out through the wall. That is easy to do with this MD6TU kit for the divert, but I would also like to install an additional slave damper downstream from the MUA damper that will shut vent through the exterior. To do that, I'd need a damper that is normally open, and powered closed. Is that something that is easily accomplished with the damper supplied with this kit? I was told by your phone help that "you might be able to, but it would void the UL listing on the damper". Is that actually true, or would it be a tested and approved application for the damper?
    Asked by: Elden
    Thank you for your question on the model MD6TU automatic make-up air damper. Please contact the Technical Service Department at 800-637-1453 for assistance.
    Answered by: BroanCustomerService
    Date published: 2015-01-09

    Distance between senor and dumper.

    HI, I have many questions: 1) want to know how far can a sensor placed from the Dumper? 2) how much is the Supply voltage for both dumper and sensor? 3) minimum air flow that the sensor can detect.
    Asked by: sohail
    Thank you for your question on the MD6TU make-up air damper. Please contact our Technical Support Department directly at 800-637-1453 for more information. If you are not located in the United States, please feel free to contact our International Sales Representative, Bogart International. Their email is bogartexport@gmail.com.
    Answered by: BroanCustomerService
    Date published: 2016-09-29
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