Desa Flame-Max VYD24 Operation And Installation Manual

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Desa Flame-Max VYD24 Operation And Installation Manual Manual pdf 8 page image

www.desatech.com 113093-01H8AIR FOR COMBUSTION AND VENTILATIONContinuedFigure 3 - Ventilation Air from OutdoorsOutletAirVentilatedAtticOutletAirInletAirInlet Air VentilatedCrawl SpaceToCrawlSpaceTo AtticINSTALLATIONVENTILATION AIRVentilation Air From Inside BuildingThis fresh air would come from an adjoiningunconfined space. When ventilating to anadjoining unconfined space, you must providetwo permanent openings: one within 12" of theceiling and one within 12" of the floor on thewall connecting the two spaces (see options1 and 2, Figure 2). You can also remove doorinto adjoining room (see option 3, Figure 2).Follow the National Fuel Gas Code, ANSIZ223.1/NFPA 54, Air for Combustion andVentilation for required size of ventilationgrills or ducts.Figure 2 - Ventilation Air from InsideBuildingOrRemoveDoor intoAdjoiningRoom,Option3Ventilation GrillsInto Adjoining Room,Option 2VentilationGrills IntoAdjoiningRoom,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.NOTICE: 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: Make sure theselector switch is in the OFFposition before installing heater(Remote-Ready Models Only).