Viking G8MD Installation Instruction

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.  Validated performance testing certified for use with BEST, 

Broan, and Broan Elite 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.

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.