Quadra-Fire 31I-ACC Installation manual - page 5
April 9, 2014
7044-225B
5
31-I ACC
C. Negative Pressure
Negativepressureresultsfromtheimbalance ofairavail-
ablefortheappliancetooperateproperly.Itcanbestron-
gestinlowerlevelsofthehouse.
Causesinclude:
• Exhaustfans(kitchen,bath,etc.)
• Rangehoods
• Combustionairrequirementsforfurnaces,waterheaters
andothercombustionappliances
• Clothesdryers
• Locationofreturn-airventstofurnaceorairconditioning
• ImbalancesoftheHVACairhandlingsystem
• Upperlevelairleakssuchas:
- Recessed lighting
- Attic hatch
- Duct leaks
Tominimizetheeffectsofnegativeairpressure:
• Installtheoutsideairkitwiththeintakefacingprevailing
winds during the heating season
• Ensureadequateoutdoorairforallcombustionappliances
andexhaustequipment
• Ensurefurnaceandairconditioningreturnventsarenot
locatedintheimmediatevicinityoftheappliance
• Avoidinstallingtheapplianceneardoors,walkwaysor
small isolated spaces
• Recessedlightingshouldbea“sealedcan”design
• Attichatchesweatherstrippedorsealed
• Atticmountedductworkandairhandlerjointsandseams
taped or sealed
• Basementinstallationsshouldbeavoided
WARNING
• Negativepressurecancausespillageofcom-
bustionfumes,sootandcarbonmonoxide.
• Applianceneedstodraftproperlyforsafety.
Asphyxiation Risk.
D. Tools And Supplies Needed
Beforebeginningtheinstallationbesurethefollowingtools
andbuildingsuppliesareavailable:
Reciprocating saw
Framing material
Pliers
Hightempcaulkingmaterial
Hammer
Gloves
Phillipsscrewdriver
Framingsquare
Flatbladescrewdriver Electricdrillandbits
Plumbline
Safetyglasses
Level
Tapemeasure
1/2-3/4in.length,#6or#8self-drillingscrews
Misc. screws and nails
• Removeapplianceandcomponentsfrompackagingand
inspect for damage.
• Vent system components and doors are shipped in
separate packages.
• Reporttoyourdealeranypartsdamagedinshipment.
• Read all the instructions before starting the
installation. Follow these instructions carefully during
theinstallationtoensuremaximumsafetyandbenefit.
E. Inspect Appliance and Components
Inspect appliance and components for damage.
Damaged parts may impair safe operation.
WARNING
• DoNOTinstalldamagedcomponents.
• DoNOTinstallincompletecomponents.
• DoNOTinstallsubstitutecomponents.
Report damaged parts to dealer.
Fire Risk.