Installation Guide

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Installation
STEP 5
Venting Installation Guidelines
• The following steps are for exterior ventilation.
Height and Clearance
24 in. (610 mm) Min / 30 in. (762 mm) Max
To reach 9 ft (2.7 m) ceiling, make sure
range hood is installed at least
30 in. (762 mm) from cooking surface.
IMPORTANT:
• Vent system must terminate to the outside (roof or side wall).
• DONOT terminate the vent system in an attic or other
enclosed area.
• DONOTuse4in.(10.2cm)laundry-typewallcaps.
• Usemetal/aluminumventonly.Arigidmetal/aluminum
vent is recommended.
• DONOTuseaplasticvent.
• Alwayskeeptheductcleantoensureproperairflow.
• Calculatethefollowingfiguresbeforeinstallation:
1. Distance from the floor to the ceiling
2. Distance between the floor and the countertop/stove
3. A distance of 24 in. to 30 in. (61 cm to 76.2 cm) is
recommended between stove top and the bottom of
range hood. 30 in. (76.2 cm) minimum is required for
gas stove tops.
4. Height of hood and duct cover.
For the most efficient and quiet operation:
• Itisrecommendedthattherangehoodbevented
vertically through the roof through 6 in. (15.3 cm) round,
or through the roof or wall 3-1/4 x 10 in. (8.3 cm x 25.4
cm) rectangular duct or bigger metal/aluminum vent
work.
• Thesizeoftheventshouldbeuniform.
• Usenomorethanthree90°elbows.
• Make sure there is a minimum of 24 in. (61 cm) of
straight vent between the elbows if more than one
elbow is used.
• DONOTinstalltwoelbowstogether.
• The length of vent system and number of elbows should be
kept to a minimum to provide efficient performance.
• Theventsystemmusthaveadamper.Ifrooforwall
cap has a damper, you may remove damper flaps from
damper to increase air flow.
• Onlyoneflangeisneededintheairductsystem,either
on top of the motor or outside.
• Use silver tape or duct tape to seal all joints in the
vent system.
• Use caulking to seal exterior wall or roof opening
around the cap.