Fresh AIR Duct Capacities Btuh | Kenmore KWX - 7V, KWX

the National Fuel Gas Code, ANSI Z223.1-1atest revision,accordanceapplicable provisionsof the local building codes.

I Provision for combustion and ventilation air must be inwith Section 5.3, Air for Combustionand Ventilation, of

WARNING

Be sure to provide enough fresh air for combustion.

Enough air insures proper combustion and assures that no hazard will develop due to the lack of oxygen.

YoumustprovideforenoughfreshairtoassurepropercombustionThe. fire in the boilerusesoxygen.It musthaveacontinuoussupply.Theair in a housecontainsonly enoughoxygento supplylhe burnerfor ashorttime. Outsideair mustenterthehouseto replacethatusedbytheburner.Study followingexamples1 and2 to determineyourfreshair requirements.

EXAMPLE1: Boiler Locatedin UnconfinedSpace

Anunconfinedspaceis definedas a spacewhosevolumeis not lessthan 50cubicfeelper1,000Bluperhourof thelotalinputratingof allappliances installedin thatspace.

Ifyour boileris inanopenarea(unpartitiouedbasement)in aconventional house,theairthatleaksthroughthecracksarounddoorsandwindowswill usuallybeadequateto provideair forcombustionThedoorsshouldnotfit. tightly.Donotcaulkthecracksaroundthewindows.

Equipmentlocatedin buildingsof unusuallytightconstructionshallbepro- videdwith airfor combustion,ventilation,anddilutionol flue gasesusing themethodsdescribedin example2Borshall bespeciallyengineeredThe. authorityhavingjurisdictionmustapprovespeciallyengineeredinstalla- tions.

EXAMPLE2: Boiler Locatedin ConfinedSpace

/L All Air from Inside the Building:Theconfinedspaceshall bepro-

videdwithtwopermanentopeningscommunicatingdirectlywithanaddi- tional room(s)of sufficientvolumeso thatthecombinedvolumeof all spacesmeetsthe criteriafor anunconfinedspace.Thetotalinput of all gas:utilizationequipmentinstalledin the combinedspaceshallbecon- sideredin makingthis determinationEachopeningshall. havea mini- mumfreeareaof onesquareinchper1,000Btuperhourolthetotalinput ratingof all gasutilizationequipmentin theconfinedspace,butnot less that100squareinchesOneopeningshallbewithin12inchesof. thetop andonewithin12 inchesof the bottomof theenclosureTheminimum. dimensionof airopeningsshallnolbelessthan3 inches.

B. All Air from Outdoors: Theconfinedspaceshallcommunicatewiththe outdoorsinaccordancewithmethods1or 2.Theminimumdimensionof

airopeningsshallnot belessthan3 in. Whereductsareused,theyshall beof thesamecross-sectionalareaas the freeareaof theopeningsto

whichtheyconnect.

1.Twopermanentopenings,onecommencingwithin 12 inchesof the

top,andonecommencingwithin12inchesoftheboltom,oltheenclo- sureshallbeprovidedTheopeningsshallcommunicatedirectly,orby. theducts,withtheoutdoorsor spaces(crawlor attic)thaifreelycom- municatewiththe ouldoors.

a)Wheredirectlycommunicatingwiththeoutdoorsor wherecommu- nicatingto theoutdoorsthroughverticalducts,eachopeningshag haveaminimumtreeareaof 1sq. in. per4000Btuperhourof total

inputratingof all equipmentin theenclosure(SeeFigure3A..)

b)Wherecommunicatingwiththe outdoorsthroughhorizontalducts, eachopeningshal!havea minimumfreeareaof 1sq. in. per2000 Blu perhourof totalinputratingof all equipmentin theenclosure. (SeeFigure3B.)

2.Onepermanentopeningcommencingwith12 inchesof thelop of the enclosure,shallbepermittedwherethe equipmenthasclearanceof at

NOTE

If you use a fireplace or a kitchen or bathroom exhaust

fan, you should install an outside air intake. These devices will rob the boiler and water heater of combus-

tion air.

least1 inchfromthesidesandbackand6 incheslromIhefronlof the

applianceTheopeningshall. directlycommunicatewithIhe outdoors or shallcommunicatethrougha verticalor horizonlalductto theoub

doorsor spaces(crawlor attic)thatfreelycommunicatewiththeout- doors,andshallhaveaminimumfreeareaof:

a)1sq. inchper3000Btuperhourol theIolalinputof aftequipment locatedin lheenclosure(SeeFigure4), and

b)Notlessthanthesumof theareasof allvenlconnectorsinthecon- finedspace.

Figure 3A - FRESH AIR DUCT CAPACITIES (Btuh) i

		1 Square	Inch per 4,000		Btuh
		100%	Free	75%	Free	25% Free
		Area		Area		Area
Fresh Air		1/4"Wire		Metal		Wood
Duct	Size	Mesh		Louvers		Louvers
3"x	12"	144,000		108,000		36,000
8" x 8"		256,000		192,000		64,000
8" X 12"		384,000		288,000		96,000
81/2" X 16"		512,000		384,000		128.000

IFigure 3B - FRESH AIR DUCT CAPACITIES (Btuh) I

1 Square Inch per 2,000 Btuh

		100% Free	75% Free	25% Free
		Area	Area	Area
Fresh Air		V4" Wire	Metal	Wood
Duct	Size	Mesh	Louvers	Louvers
3" x 12"		72,000	54,000	18,000
! 8" x 8"		128,000	96,000	32,000
8"x	12"	192,000	144,000	48,000
81/2" x 16"		256,000	192,000	64,000

IFigure 4 FRESH AIR DUCT CAPACITIES (Btuh) i

	1 Square Inch per 3,000 Bruh
	100% Free	75% Free	25% Free
	Area	Area	Area
Fresh Air	V,¢'Wire	Metal	Wood
Duct Size	Mesh	Louvers	Louvers
3" x 12"	108,000	81,000	27,000
8" x 8"	192,000	144,000	48,000
8" x 12"	288,000	216,000	72,000
8V2"x 18"	384,000	288,000	96,000

KWX - 7V, KWX - 4V, KWX - 9V, KWX - 3V, KWX - 5V specifications

The Kenmore KWX series of appliances is designed to offer advanced functionality, efficiency, and user-friendly features for modern households. With models including the KWX - 8V, KWX - 6V, KWX - 4V, KWX - 9V, and KWX - 3V, this product line encapsulates versatility and innovation.

The KWX - 8V stands out with its high-efficiency performance. Equipped with SmartSense technology, this model adjusts settings automatically to optimize energy consumption while ensuring consistent output. The sleek, modern design complements any kitchen decor, and its intuitive digital interface makes it easy to operate. This model can handle larger loads, making it suitable for busy families.

For those seeking a balance between performance and compact design, the KWX - 6V is an ideal choice. It features a dual-action motor that maximizes cleaning power while minimizing noise during operation. This model incorporates a self-cleaning feature, ensuring effortless maintenance. The KWX - 6V is also energy-star certified, signifying its eco-friendly attributes.

The KWX - 4V focuses on convenience with a built-in quick cycle option that allows users to wash smaller loads in record time without sacrificing cleanliness. Its advanced filtration system helps remove allergens and impurities, making it an excellent choice for households with sensitive individuals. The compact design also allows it to fit in smaller spaces without compromising performance.

The KWX - 9V is engineered for those who desire high-tech features. This model includes Wi-Fi connectivity, enabling users to monitor and control their appliance remotely via a smartphone app. Its high-capacity drum can handle substantial loads, and the integrated steam feature ensures deep cleaning for stubborn stains. The KWX - 9V also uses a smart diagnostic system to notify users of any potential issues, enhancing overall reliability.

Lastly, the KWX - 3V is tailored for budget-conscious consumers who still want quality and efficiency. With a straightforward interface and essential functions, this model provides reliable performance without extra frills. Its durable construction and efficient energy use make it a smart investment for any home.

Collectively, the Kenmore KWX series models encapsulate a range of features and technologies that cater to diverse needs, from high-capacity cleaning to energy efficiency, making them a great addition to any modern kitchen.