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Dirz�tian5-In order W determine the makeup air,Tablz 501.41 must be Flled but{zee ti�lovrj.Far mast netiv ir:stallat�ions,ctllumn A w114 be appropriat2,howzver,if <br /> atmospherica2ly venterJ appliances or solid fuel appliances are instailzd,usrthe aFpropriate cWumn. Please noie,if tfse makrup airquantity is negative,no additional makrup air <br /> wiEl be required Tor vendla�on,if[he vaWe is positive re/er to 7abie 501.4.2 antl size the oper-ing.Transfer the cfm,siae of ppening and rype(round,rectengular,fle�or rigid}to <br /> Shz last linr of sectian 0. <br /> Table 50i.4.i <br /> PROCEDURE TO DETERMINE MAKEUP AIR C3liANITY f01�EXHAUST Et�UIpMENT IN DWELLINGS <br /> Acidiltiana�combustionairwillbere u3redfoxcombusFian.a���:ii�ces<seeKRt�RmeEhotl��forta;cutatiwns <br /> Onaormultip4apower Onemr�mult�pietan- Oneatmospheeicallyvent Multipleatmospherical- <br /> ventor dircctvent ap-pliances aisister�app[iantes and powet gas orvil appliance ar o�solid ty ve�ted gas or otl appi(ances <br /> ornocambv:•tionappltances ventordircctventappiiances f�catappEiance rsdidfue�appltances <br /> Column D <br /> Cotuma A Cokumn B Coiumn G <br /> 1� o.is o.as o.ob o.a3 <br /> ay pressure factor <br /> {rfm/sf) <br /> b)conditloned floor area Rsfy(indvding L,�y,�� <br /> untinished 6auments) UQ <br /> Estimated House Infiluatton{cfm):�ia �� n�� <br /> x lbj �v <br /> 2.Exhaust Capacity <br /> afcontinuousexhaust-onlyvenNlationsystem E�� � � <br /> (cfmj;(na appiicable to ba-len[ed�ventftatlan <br /> sysLem,s sud�as HqV) <br /> b)cbthes dryer 1c#ml 1.35 135 I35 135 <br /> cy 8076 of largest exhaust ratinq(ctm); <br /> Kit�hen hood typiw!!y 2� <br /> �not applicab9e If rectrcutatlng system or it <br /> pawered makeup air is eRectracaily interlociced <br /> d)SCsY�afnextlar`estexhsusYreting NOt <br /> �cfm);bath fan typicaNy <br /> (notappl'aca6le ff recircu3ating sysiem or if Applicabie <br /> pawered makeupair�is e&ectricaily intrrlocked <br /> 7ota9 Er.h.aust Gapacity tctm)� ��� <br /> 12a+2.6+2c+2d] <br /> 3.hAakeupAir Quantity{gfmy <br /> s f w Wi ext�ust capacity(from ebove) 37� <br /> b)estlmat�twuse infiltrarien efrom � �n� <br /> above) � G <br /> Makeup Ai*Quan¢ity(cfmJ; <br /> {3a-3b] _/1 ■� <br /> {if value ts negative,no makeup air is neededj �t<� <br /> v—r <br /> 4.Fw makeup Air Opentng Sfzi ng,refer <br /> �oTearSo�Q.z N4l" REQ. <br /> A.the this column if there are other than�fan-assisted Cr atmoxphericalty�vEnted gas or eil appliance or it tnPre ar�no cambusdan apptiance3.(PuwervenE antf directvcAt <br /> app�iances may be used.f <br /> B.Use thfs column ff drere fs one fan-assEsted ap{slfanc�.�er venting systmn..(Apt,lianres nther than atmc�spherialryvented�ptfantes may atso be trrctuded.} <br /> C.Use this coiumn itthere is one aTmosphericallyvented(other�an far±-ais7st2dy ga�s er�oii eppiiar�ee pervertting sys[em or one suiid fuel apD3iance. <br /> D.Use this cotumrt if thereare muitiple atmospheritallyvcnted gas aro#!appliaisces using a common�ventor if there arzatrnosphe�ically�vented eas or oit app4iances and solid <br /> fule appliances, <br />