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3
4. Ducted fans must always be vented to the outdoors.
ALL WALL AND FLOOR OPENINGS WHERE THE RANGE HOOD IS INSTALLED MUST
BE SEALED.
This Range Hood requires at least 24" of clearance between the bottom of the Range Hood
and the cooking surface or countertop. This hood has been approved by UL at this distance from
the cooktop.
This minimum clearance may be higher depending on local building codes. For gas cooktops and
combination ranges, a minimum of 30" is recommended and may be required.
Overhead cabinets on both sides of this unit must be a minimum of 18" above the cooking surface
or countertop. Consult the cooktop or range installation instructions given by the manufacturer
before making any cutouts.
MOBILE HOME INSTALLATION The installation of this Range Hood must conform to the Manufactured
Home Construction and Safety Standards, Title 24 CFR, Part 3280 (formerly Federal Standard
for Mobile Home Construction and Safety, Title 24, HUD, Part 280). See Electrical Requirements.
• Venting system MUST terminate outside the home.
• DO NOT terminate the ductwork in an attic or other enclosed space.
• DO NOT use 4" laundry-type wall caps.
• Flexible-type ductwork is not recommended.
• DO NOT obstruct the ow of combustion and ventilation air.
• Failure to follow venting requirements may result in a re.
WARNING
!
VENTING REQUIREMENTS
Determine which venting method is best for your application. Ductwork can extend either through
the wall or the roof.
The length of the ductwork and the number of elbows should be kept to a minimum to provide efcient
performance. The size of the ductwork should be uniform. Do not install two elbows together. Use
duct tape to seal all joints in the ductwork system. Use caulking to seal exterior wall or oor opening
around the cap.
Flexible ductwork is not recommended. Flexible ductwork creates back pressure and air turbulence that
greatly reduces performance.
Make sure there is proper clearance within the wall or oor for exhaust duct before making cutouts.
Do not cut a joist or stud unless absolutely necessary. If a joist or stud must be cut, then a supporting
frame must be constructed.
WARNING - To Reduce The Risk Of Fire, Use Only Metal Ductwork.
CAUTION-Toreduceriskofreandtoproperlyexhaustair,besuretoductairoutside–Do
not vent exhaust air into spaces within walls or ceilings or into attics, crawl spaces, or garages.
Cold Weather installations
An additional back draft damper should be installed to minimize backward cold air ow and a
nonmetallic thermal break should be installed to minimize conduction of outside temperatures
as part of the vent system. The damper should be on the cold air side of the thermal break.
The break should be as close as possible to where the vent system enters the heated portion
of the house.
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