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


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118197-01C 7
VENTINg INSTALLATION
INSTRUCTIONS
   -
tions completely before at-

Thesemodelsaretestedandapprovedforuse
withDESA(direct-vent)pipecomponentsand
terminations.
Theventingsystemmustterminateontheoutsideof
thestructureandcannotbeattachedtoachimney
oruesystemservingaseparatesolidfuelorgas
burningappliance.Adirect-ventappliancemust
haveitsownventingsystem.DONOTcommon
ventthisappliance.
Thesemodelsareapprovedtobeventedeither
horizontallythroughanoutsidewallorvertically
througharooforchaseenclosureusingthefol-
lowingguidelines:
• Whenventingsystemterminateshorizontally
onanoutsidewall,youmayinstallastandoff
iftheterminationcapistobeinstalleddirectly
onacombustiblenishsuchasvinyl,wood,
stucco,etc.
• Neverruntheventdownwardasthismay
causeexcessivetemperatureswhichcould
causeare.
• Ventpipeairspaceclearancestocombustibles
are1"onallsidesexceptonthehorizontal
sections,whichrequires2"clearancefrom
thetopofthepipe.Wheretheterminationcap
penetratesacombustiblewall,1"airspace
clearanceisrequired.
• Snorkelterminations arerequired when
minimumclearancetogradecannotbemet(see
Figure16onpage11).
• Havereplaceandselectedventcomponentson
handtohelpdeterminetheexactmeasurements
whenelbowingoroffsetting.Alwaysusewall
restopswhenpenetratingwallsandrestops
whenpenetratingceilingsoratticspaces.
• Ifusingaventingcongurationofonlyhori-
zontalventingwithnoverticalrun,a1/4"rise
forevery12"ofruntowardtheterminationis
required.
• Forinstallationofreplaceatelevationsof4000
feetorgreater,payspecialattentiontoventing
requirementrecommendations.
WARNING: Read all instruc-

  



-



removable for vent inspection


• Wearglovesandsafetyglassesforprotection
• Useextremecautionwhenusingladdersor
whenonrooftops
• Beawareofelectricalwiringlocationsinwalls
andceilings
Thefollowingactionswillvoidthewarrantyon
yourventingsystem:
• Installationofanydamagedventingcomponent
• Unauthorizedmodicationoftheventingsys-
tem(Donotcutoralterventcomponents)
• Installationofanycomponentpartnotmanu-
facturedorapprovedbyDESA
• Installationotherthanasinstructedbythese
instructions

and vent assembly must be vented




   


WARNING: Vent pipe air
space clearances to combustibles






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