Design Dynamics VF-18N-PDG Owner's Operation And Installation Manual

Also see for VF-18N-BTB: OWNER'S OPERATION AND INSTALLATION MANUAL OWNER'S OPERATION AND INSTALLATION MANUAL

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Design Dynamics VF-18N-PDG Owner's Operation And Installation Manual Manual pdf 8 page image

www.fmiproducts.com 111826-01L8AIR FOR COMBUSTION AND VENTILATIONContinuedFigure 3 - Ventilation Air from OutdoorsOutletAirVentilatedAtticOutletAirInletAirInlet Air VentilatedCrawl SpaceToCrawlSpaceTo AtticINSTALLATIONWARNING: Make sure theselector switch is in the OFF po-sition before installing heater.vENTILATION AIRVentilation Air From Inside BuildingThis fresh air would come from an adjoining un-confined space. When ventilating to an adjoiningunconfined space, you must provide two perma-nent openings: one within 12" of the ceiling andone within 12" of the floor on the wall connectingthe two spaces (see options 1 and 2, Figure 2).You can also remove door into adjoining room(see option 3, Figure 2). Follow the NationalFuel Gas Code, ANSI Z223.1/NFPA 54, Airfor Combustion and Ventilation for requiredsize of ventilation grills or ducts.OrRemoveDoor intoAdjoiningRoom,Option3Ventilation GrillsInto Adjoining Room,Option 2VentilationGrillsInto AdjoiningRoom,Option 112"12"ventilation Air From OutdoorsProvide extra fresh air by using ventilationgrills or ducts. You must provide two perma-nent openings: one within 12" of the ceilingand one within 12" of the floor. Connect theseitems directly to the outdoors or spaces opento the outdoors. These spaces include atticsand crawl spaces. Follow the National FuelGas Code, ANSI Z223.1/NFPA 54, Air forCombustion and Ventilation for required sizeof ventilation grills or ducts.IMPORTANT: Do not provide openings forinlet or outlet air into attic if attic has a thermo-stat-controlled power vent. Heated air enteringthe attic will activate the power vent.Figure 2 - Ventilation Air from Inside BuildingNOTICE: This heater is intendedfor use as supplemental heat.Use this heater along with yourprimary heating system. Do notinstall this heater as your pri-mary heat source. If you have acentral heating system, you mayrun system’s circulating blowerwhile using heater. This will helpcirculate the heat throughout thehouse. In the event of a poweroutage, you can use this heateras your primary heat source.WARNING: A qualified ser-vice person must install heater.Follow all local codes.NOTICE: State or local codes mayonly allow operation of this appli-ance in a vented configuration.Check your state or local codes.WARNING: Seal any freshair vents or ash clean-out doorslocated on floor or wall of fire-place. If not, drafting may causepilot outage or sooting. Use aheat-resistant sealant. Do notseal chimney flue damper.