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— 10 —
Installation
STEP 5
Venting Installation Guidelines
• The following steps are for exterior ventilation.
Height and Clearance
36 in.
(91.4 cm)
30 in.
(76.2 cm)
114.6 in. (2.9 m)
IMPORTANT:
•
Vent system must terminate to the outside (roof or side wall).
• DONOT
terminate the vent system in an attic or other
enclosed area.
• DONOTuse4in(10.2cm)laundry-typewallcaps.
• Usemetal/aluminumventonly.Arigidmetal/aluminum
vent is recommended.
• DONOTuseaplasticvent.
• Alwayskeeptheductcleantoensureproperairflow.
• Calculatethefollowingfiguresbeforeinstallation:
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:
• Itisrecommendedthattherangehoodbevented
vertically through the roof through 6 in. (15.3 cm) or
bigger round metal/aluminum vent work.
• Thesizeoftheventshouldbeuniform.
• Usenomorethanthree90°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.
• DONOTinstalltwoelbowstogether.
•
The length of vent system and number of elbows should be
kept to a minimum to provide efficient performance.
• Theventsystemmusthaveadamper.Ifrooforwall
cap has a damper, you may remove damper flaps from
damper to increase air flow.
• Onlyoneflangeisneededintheairductsystem,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.
Maximum ceiling clearance 114.6 in. (2.9 m) at
30 in. (76.2 cm) hood mounting height above
countertop or stove (May vary with different
model). Chimney extensions available for
higher ceiling.
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