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WARNING  

 

TO REDUCE THE RISK OF FIRE, ELECTRIC SHOCK, OR 
INJURY TO PERSONS, OBSERVE THE FOLLOWING:

1.  Installation work and electrical wiring must be done by a qualified  

person(s) in accordance with all applicable codes and standards, 
including fire-rated construction codes and standards.

2.  Do not use the unit in conjunction with any exhaust device other 

than compatible BEST, Broan Elite or Broan range hoods.  

3.  This unit is not designed to provide combustion air for fuel-

burning appliances.  

4.  Do not connect the unit directly to a combustion appliance of 

any type.  

5.  Sufficient air is needed for proper combustion and exhausting 

of gases through the flue (chimney) of fuel burning equipment 
to prevent backdrafting. Follow the heating equipment 
manufacturer’s guideline and safety standards such as those 
published by the National Fire Protection Association (NFPA), 
and the American Society for Heating, Refrigeration and 
Air Conditioning Engineers (ASHRAE), and the local code 
authorities.

6.  Before servicing or cleaning unit, switch power off at service 

panel and lock the service disconnecting means to prevent 
power from being switched on accidentally. When the service 
disconnecting means cannot be locked, securely fasten a 
prominent warning device, such as a tag, to the service panel.

7.  When performing installation, servicing or cleaning the unit, it is 

recommended to wear safety glasses and gloves.

8.  During extreme weather events including snow storms, ensure 

that the intake area for the outside air duct is not blocked and 
able to provide a clear pathway for outside air to enter the 
system.

9.  When cutting or drilling into wall or ceiling, do not damage 

electrical wiring or other hidden utilities.

10. When notching or drilling into framing including floor supports, 

rim joists, and wall studs, comply with code and manufacturer 
limitations on allowable modifications to these structural 
members.

11.  This unit is intended to be installed within the home in a location 

protected from moisture.  

12. This unit must be in an accessible location which allows for 

inspection of the unit.  

13. Use this unit only in the manner intended by the manufacturer. 

If you have questions, contact the manufacturer at the address 
or telephone number listed in this document.

14. When federal, provincial or state legislation comprises more 

restrictive installation and/or certification requirements, the 
aforementioned requirements prevail on those of this document 
and the installer agrees to conform to these at his own expense.

AUTOMATIC MAKE-UP AIR 
DAMPER WITH TRANSFORMER
& PRESSURE SWITCH

READ AND SAVE THESE INSTRUCTIONS

  FOR RESIDENTIAL USE ONLY 

CAUTION  

1.  Do not locate outside air inlet near hazardous materials or explosives.
2.  Unit shall not be installed to introduce air from crawlspaces, garages, 

attics, adjacent dwelling units, or other locations within the building 
shell.  Unit shall be installed to introduce air directly from outdoors.

3.  Do not run the outside air duct directly above or closer than 2 ft to 

any furnace or its supply plenum, boiler, or other heat producing 
appliance. 

4.  Any ductwork used in conjunction with the Damper must be installed 

in compliance with all local and national codes that are applicable.

5.  Do not operate the Damper for fresh air introduction until all system 

filters, including the central duct system filter, have been installed per 
the system design.

6.  Please read the unit specification label on the product for further 

information and requirements.  

7.  The Damper’s outdoor air intake, ducting, and any filters should be 

inspected and maintained on a regular basis.

8.  Insulate the duct and damper to prevent build-up of condensation in 

cold weather climates. Vapor barriers on both sides of insulation are 
recommended.

To register this product 

visit: www.broan.com

WARRANTY

BROAN-NUTONE ONE YEAR LIMITED WARRANTY

Broan-NuTone warrants to the original consumer purchaser of its products that such prod-
ucts will be free from defects in materials or workmanship for a period of one year from the 
date of original purchase. THERE ARE NO OTHER WARRANTIES, EXPRESS OR IMPLIED, 
INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES OF MERCHANTABILITY OR 
FITNESS FOR A PARTICULAR PURPOSE.
During this one-year period, Broan-NuTone will, at its option, repair or replace, without 
charge, any product or part which is found to be defective under normal use and service.
THIS WARRANTY DOES NOT EXTEND TO FLUORESCENT LAMP STARTERS, TUBES, 
HALOGEN AND INCANDESCENT BULBS, FUSES, FILTERS, DUCTS, ROOF CAPS, WALL 
CAPS AND OTHER ACCESSORIES FOR DUCTING. This warranty does not cover (a) normal 
maintenance and service or (b) any products or parts which have been subject to misuse, 
negligence, accident, improper maintenance or repair (other than by Broan-NuTone), faulty 
installation or installation contrary to recommended installation instructions.
The duration of any implied warranty is limited to the one-year period as specified for the 
express warranty. Some states do not allow limitation on how long an implied warranty 
lasts, so the above limitation may not apply to you.
BROAN-NUTONE’S OBLIGATION TO REPAIR OR REPLACE, AT BROAN-NUTONE’S OPTION, 
SHALL BE THE PURCHASER’S SOLE AND EXCLUSIVE REMEDY UNDER THIS WARRANTY. 
BROAN-NUTONE SHALL NOT BE LIABLE FOR INCIDENTAL, CONSEQUENTIAL OR SPECIAL 
DAMAGES ARISING OUT OF OR IN CONNECTION WITH PRODUCT USE OR PERFORMANCE. 
Some states do not allow the exclusion or limitation of incidental or consequential damages, 
so the above limitation or exclusion may not apply to you.
This warranty gives you specific legal rights, and you may also have other rights, which vary 
from state to state. This warranty supersedes all prior warranties.
To qualify for warranty service, you must (a) notify Broan-NuTone at the address or telephone 
number below, (b) give the model number and part identification and (c) describe the nature 
of any defect in the product or part. At the time of requesting warranty service, you must 
present evidence of the original purchase date.
Broan-NuTone LLC, 926 W. State Street, Hartford, Wisconsin 53027
www.broan.com    800-558-1711

Summary of Contents for MD6TU

Page 1: ...o not run the outside air duct directly above or closer than 2 ft to any furnace or its supply plenum boiler or other heat producing appliance 4 Any ductwork used in conjunction with the Damper must be installed in compliance with all local and national codes that are applicable 5 Do not operate the Damper for fresh air introduction until all system filters including the central duct system filter...

Page 2: ...in exterior walls including steps to prevent moisture intrusion around the opening Note that the screen over the outside air opening is not a filter It is intended to prevent the intake of leaves animals or debris into the out side air duct A downstream filter is necessary to remove pollen dust and other airborne particles Potential filter locations are shown below in the Typical Installations sec...

Page 3: ...s used Use the following illustrations and notes as guidance for your own installation Always comply with local code requirements and in any instance where a detail shown below conflicts with local code the local code provision shall apply Damper connected to return side of central duct system AIR HANDLER UNIT COOLING APPARATUS AIR DISTRIBUTION FAN HEATING APPARATUS THERMOSTAT CENTRAL SYSTEM SUPPL...

Page 4: ...hen the static QSFTTVSF JODSFBTFT UP u 1T PS NPSF U NBZ OPU PQFSBUF BU MPX speeds since the pressure is below this limit MULTIPLE DAMPERS PSF UIBO POF EBNQFS NBZ CF SFRVJSFE UP CBMBODF UIF TZTUFN G NPSF UIBO POF JT SFRVJSFE VTF 56 PS 56 BOE UIFO VTF UIF PS EBNQFST BT BEEJUJPOBM EBNQFST INSTALLATION OF PRESSURE SWITCH AND PROBE For the probe pressure switch to work effectively the roof or wall cap ...

Page 5: ... EXHAUST DUCT PRESSURE SWITCH HOOD FLUE ROOF CAP w DAMPER INLINE BLOWER TYPICAL INSTALLATION WITH EXTERIOR BLOWER RANGE HOOD PROBE EXHAUST DUCT PRESSURE SWITCH HOOD FLUE EXTERIOR BLOWER The probe must be mounted between the range hood damper and the wall cap roof cap in line blower or external blower PVOU UIF QSPCF BT DMPTF UP UIF IPPE PVUMFU BT QPTTJCMF CVU make sure the hood damper operation is ...

Page 6: ...RESSURE SWITCH PRESSURE SWITCH TUBING PROBE air flow arrow pointing in direction of air flow AIR FLOW DUCTWORK GASKET SHEET METAL SCREWS Connect tubing onto outside of black fitting Drill 3 8 HOLE in ducting 1 4 SPADE TERMINALS Probe opening pointing down AIR FLOW LOW VOLTAGE WIRES TUBE CONNECTED TO GREY INLET PRESSURE SWITCH SET UP FOR EXTERNAL IN LINE BLOWERS 1 4 SPADE TERMINALS Probe opening po...

Page 7: ...F EBNQFS PQFOT Turn off the hood and check to see if the damper closes A qualified HVAC contractor should also ensure the proper operation and venting of all combustion equipment in the home Wire the system as shown FALSE TRIPPING Under certain extreme conditions there could be false tripping of the damper opening when the range hood blower is off If false tripping JT FODPVOUFSFE QMBDF BO JO MJOF ...

Page 8: ...IF CVJMEJOH VU NPEFSO IPNFT BSF BJS TFBMFE much more thoroughly so there are not as many cracks and openings Plus some exhaust fans like range hoods exhaust a lot more air than can be replaced through normal cracks in the building shell By providing an intentionally designed opening for fresh air to replace air which is exhausted out by the range hood several important benefits result r 5IF NBLF V...

Page 9: ...ectement de l extérieur 3 Ne placez pas le conduit d arrivée d air extérieur directement au dessus d un appareil de chauffage d un caisson de distribution ou d une chaudière ni à moins de 60 cm 2 pi 4 Installez tout conduit utilisé avec le clapet conformément aux codes locaux et nationaux en vigueur 5 N utilisez pas le clapet pour introduire de l air frais tant que les filtres et notamment le filt...

Page 10: ...les mesures à prendre pour empêcher l entrée d humidité autour de l ouverture Veuillez noter que le grillage de la prise d air ne constitue pas un filtre Il ne vise qu à empêcher l entrée des feuilles des animaux ou des débris dans le conduit Un filtre situé en aval est nécessaire pour enlever le pollen la poussière et les autres particules en suspension Les emplacements possibles du filtre sont i...

Page 11: ... notes ci dessous pour vous guider dans l installation Respectez toujours les exigences des codes dans toute situation où un détail indiqué ci dessous contredirait les codes locaux Ceux ci ont préséance Clapet raccordé à la section de retour d air du conduit central APPAREIL DE TRAITEMENT DE L AIR REFROIDISSEUR VENTILATEUR DE DISTRIBUTION D AIR APPAREIL DE CHAUFFAGE THERMOSTAT DISTRIBUTION D AIR D...

Page 12: ...ression est inférieure à ce seuil CLAPETS MULTIPLES Plusieurs clapets peuvent être nécessaires pour équilibrer le système Si vous utilisez plusieurs clapets choisissez un 1 DMBQFU 56 PV 56 QVJT VUJMJTF MFT NPEÍMFT PV DPNNF DMBQFUT BEEJUJPOOFMT INSTALLATION DU MANOCONTACTEUR ET DE LA SONDE Pourquelasondeetlemanocontacteurfonctionnentcorrectement le capuchon mural ou de toit doit avoir un clapet à r...

Page 13: ...tallation HOTTE DE CUISINIÈRE SONDE CONDUIT D ÉVACUATION CAPUCHON DE TOIT ET CLAPET MANOCONTACTEUR CONDUIT DE LA HOTTE INSTALLATION TYPE AVEC VENTILATEUR INTERNE ET ÉVENT DE TOIT CLAPET SUR CONDUIT INSTALLATION TYPE AVEC VENTILATEUR INTERNE ET CONDUIT HORIZONTAL AVEC ÉVENT MURAL HOTTE DE CUISINIÈRE CAPUCHON MURAL ET CLAPET SONDE TUBE MANOCONTACTEUR ARMOIRE DE CUISINE INSTALLATION TYPE AVEC VENTILA...

Page 14: ...AIR FILS DE BASSE TENSION Ouverture de la sonde tournée vers le bas COSSES OUVERTES DE 1 4 PO FILS DE BASSE TENSION TUBE CONNECTÉ À L ENTRÉE GRIS CONDUIT HORIZONTAL MANOCONTACTEUR TUBE SONDE la flèche pointe dans le sens du débit d air DÉBIT D AIR CONDUIT CONDUIT VERTICAL MANOCONTACTEUR TUBE SONDE la flèche pointe dans le sens du débit d air DÉBIT D AIR CONDUIT MANOCONTACTEUR TUBE SONDE la flèche ...

Page 15: ...fage et de climatisation doit également s assurer du bon fonctionnement de tout appareil de combustion notamment l évacuation des gaz de combustion Effectuez le câblage tel qu illustré 24V 20V BORNES 24V CÂBLAGE DUTRANSFORMATEUR DÉCLENCHEMENT INDÉSIRABLE Dans certaines conditions extrêmes le clapet peut se déclencher alors qu il ne le devrait pas s ouvre alors que la hotte est arrêtée Si un tel dé...

Page 16: ... d ouvertures De plus certains ventilateurs comme ceux des grandes hottes évacuent beaucoup plus d air que celui pouvant être remplacé par les fentes et les fissures de l enceinte de la maison Le fait de créer délibérément un passage pour l air frais afin de remplacer l air évacué par la hotte présente plusieurs avantages importants r BJS EF DPNQFOTBUJPO RVJ QÊOÍUSF EBOT MB NBJTPO MF GBJU Æ VO end...

Page 17: ...s de vivienda adyacentes u otros sitios dentro de la estructura del edificio La unidad deberá instalarse de tal manera que introduzca el aire directo del exterior 3 No tienda el conducto de aire exterior directamente arriba o más cerca de 2 pies 60 cm de cualquier caldera o su pleno de suministro calentador u otro aparato que genere calor 4 Cualquier conducto que se utilice en conjunto con el regu...

Page 18: ...s paredes exteriores incluyendo pasos para prevenir que entre humedad alrededor de la abertura Tomeencuentaquelamallasobrelaaberturadeaireexteriornoesunfiltro Está diseñada para prevenir la entrada de hojas animales o desperdicios al conducto de aire exterior Es necesario contar flujo hacia abajo con un filtro para extraer polen polvo y otras partículas transportadas por el aire Las posibles ubica...

Page 19: ...ara su propia instalación Siempre cumpla con los requisitos de los códigos locales y en cualquier caso donde alguno de los detalles que se muestran a continuación tenga conflicto con los códigos locales se aplicará la disposición del código local Regulador conectado al lado de retorno del sistema de conducto central UNIDAD DE MANEJO DE AIRE APARATO DE ENFRIAMIENTO VENTILADOR DE DISTRIBUCIÓN DE AIR...

Page 20: ... presión está por debajo de este límite MÚLTIPLES REGULADORES Tal vez se requiera más de un regulador para equilibrar el sistema 4J TF SFRVJFSF NÃT EF VOP VTF 56 P 56 Z MVFHP VTF MPT SFHVMBEPSFT P DPNP SFHVMBEPSFT BEJDJPOBMFT INSTALACIÓN DEL INTERRUPTOR DE PRESIÓN Y SONDA Para que la sonda y el interruptor de presión funcionen con eficacia la tapa para techo o pared debe tener un regulador cargado...

Page 21: ... ESTUFA SONDA CONDUCTO DE EXTRACCIÓN TAPA DE TECHO c REGULADOR INTERRUPTOR DE PRESIÓN TUBO DE HUMOS DE LA CAMPANA INSTALACIÓN TÍPICA CON VENTILADOR INTERNO Y VENTILACIÓN DE TECHO REGULADOR EN LÍNEA INSTALACIÓN TÍPICA CON VENTILADOR INTERNO Y CONDUCTOS HORIZONTALES CON VENTILACIÓN DE PARED CAMPANA DE ESTUFA TAPA DE PARED c REGULADOR SONDA TUBERÍA INTERRUPTOR DE PRESIÓN GABINETE DE COCINA INSTALACIÓ...

Page 22: ...ha del flujo de aire apunta en dirección del flujo de aire FLUJO DE AIRE CONDUCTO EMPAQUE TORNILLOS PARA CHAPA METÁLICA Conecte el tubo por fuerade la unión negra Perfore un orificio de 9 5 mm 3 8 pulg en el conducto CONFIGURACIÓN DEL INTERRUPTOR DE PRESIÓN PARA VENTILADORES EXTERNA Y EN LÍNEA TUBO CONECTADO A LA ENTRADA NEGRA CONFIGURACIÓN DEL INTERRUPTOR DE PRESIÓN PARA VENTILADORES INTERNOS TER...

Page 23: ...egulador Un contratista calificado en HVAC también debe asegurarse la operación adecuada y la ventilación de todo el equipo de combustión en la casa Cablee el sistema como se ilustra 24V 20V CONTACTOS DE 24 V CABLEADO DELTRANSFORMADOR DISPARO EN FALSO Bajo ciertas condiciones extremas podría haber el disparo en falso del regulador se abre cuando el ventilador de la campana está apagado Si se encue...

Page 24: ...el aire así que no hay tantas grietas y aberturas Además algunos ventiladores de extracción como los de las campanas extraen mucho más aire del que se puede reemplazar a través de las grietas normales de la armazón del edificio Al suministrar una abertura diseñada intencionalmente para que el aire fresco reemplaceelaireextraídoporlacampana resultanvariosbeneficiosimportantes r M BJSF EF SFQVFTUP R...

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