Desa (V)DVC42(B)(H) Ventilation Hood User Manual


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5. Placetheashingoverthepipesection(s)
extendingthroughtheroof.Securethebaseof
theashingtotheroofandframingwithroof-
ingnails.Besureroongmaterialoverlapsthe
topedgeoftheashingasshowninFigure19,
page13.Theremustbea1"clearancefrom
theventpipetocombustiblematerials.
6. Continuetoaddpipesectionsuntiltheheight
oftheventcapmeetstheminimumbuilding
coderequirementsdescribedinFigure7on
page6.Note:Youmustincreaseventheight
forsteeproofpitches.Nearbytrees,adjoining
rooines,steeppitchedroofsandothersimilar
factorsmaycausepoordraftordown-drafting
inhighwinds.Increasingtheventheightmay
solvethisproblem.
7. Twist-locktheventcapontothelastsection
ofventpipe.
Note:Iftheventpipepassesthroughanyoccupied
areasabovetherstoor,includingstoragespaces
andclosets,youmustenclosepipe.Youmay
frameandsheetrocktheenclosurewithstandard
constructionmaterial.Makesureandmeetthe
minimumallowableclearancestocombustibles.
Donotllanyoftherequiredairspaceswith
insulation.
VENTINg INSTALLATION
INSTRUCTIONS
Continued

Figures21through24showfourdifferentcon-
gurationsforverticaltermination.



1


2
5' min. 2' max.
6' min. 4' max.
7' min. 6' max.
8' min. 8' max.
20' max. 8' max.
Figure 21 - Vertical Venting
Conguration Using Two 90° Elbows
with Two Horizontal Runs (Vertical
Round High Wind Termination Shown)
Note: Install restrictor
into inner collar of
replace as shown.
45° Elbow

 
5' min. 2' max.
6' min. 4' max.
7' min. 6' max.
8' min. 8' max.
20' max. 8' max.
Figure 22 - Vertical Venting
Conguration Using One 90° Elbow
(Vertical Round High Wind Termination
Shown)
45° Elbow
Note: Install restrictor into
inner collar of replace as
shown.
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