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Catie Peck-Long Ext691 (9/10) O1/30/2015 09:05: 13 AM -0600 <br /> Dlrections-In order ta determine the makeup oir, Toble 501.3.1 must be fllled out(see belowJ, For mosf new installotions, column A <br /> w!/I be appropriate,however,!f atmospherrcal/y venfed opp/iances orsolid fuel opplionces are Installed,use the appropriate column. <br /> for existJrtp dwellinqs,see IMC50I.3.3. Pleose note,!f the mokeup air quantlty is negative,no odditrono!make�p air will be re- <br /> quired for ventilation, if the volue is posiiive refer to Toble 501.3.2 and s/ze the opening. Tmnsfer the cfm,size of openirtg and type <br /> (round, rtctangu/ar,flex or rigid)to the last line of seciion p. The make-up alr supply must be fnsta!!ed per!MC 501.3.2.3. <br /> }••1 µ\ `p1 �"�/'"[G1 P►`` }��''` <br /> r�pw: .....d �l�( 1 `I ` �N°'O �w{. ftie..� Y <br /> Table 501.3.1 <br /> �ROCEDt1RE TO DETERMINf MAKEUP AIR QUANITY POIt EXHAUST EQiJIPMEMT!N DWELLINGS <br /> AddRanal combustion air wlll be re uired far combustion a Itances,see KAlR method for calwiations <br /> One or multiple power One or muttiple fan- One atmospheriptly vent Multiple atmospherical- <br /> vent or direct vent ap- assisced appllances and gas or ol!appAance ar ly vented g�s or oil <br /> pllances nr no combus- power vent or direct vent one solid fuel appifanee apptiancer or iolid fuel <br /> tion appfiances appliances appliances <br /> Column C Cclumn D <br /> Column A Column B <br /> 1. <br /> a)p►essure factor 0.15 0.09 0.06 0.03 <br /> (dm/sf} <br /> b)conditioned floor area(sf)(including <br /> t..f,�� ; <br /> unfinlshed basements) 6 � � � <br /> Estimated House Infiltrataon{c1m):(ia / <br /> x 1b) �� �""� �^,-'�1 <br /> 2,Exhaust Capacity <br /> a)continuous eKhaust-onty ventllation <br /> sysiem(dm);(not applicable to ba- <br /> lanced ventihtio�systems such as "" <br /> HRV) <br /> b)clothes dryer(cfm� 135 I35 135 135 <br /> c}BD96 of largest exhaust rating(cfm); <br /> Kitchen hood typically <br /> {not applicable if recirtulating sy.s�tem --•� •. <br /> or if powered makeup air is eiectrically � �''""'��� <br /> inierlocked and matcn to exhaust) <br /> d)80%of next largest exhaust rating <br /> (cfm); bath fan typially NOt <br /> jnot appticable if recirculating system <br /> or if powered makeup air is electrically Applicable ,� i� <br /> interlacked and matched to exhaust) <br /> Totai fxhaust Capacity(cfm); <br /> [Za+2b f2c r 2dJ � .f �� <br /> 3.Makeup Alr Quantity(cfm� <br /> a)total exhaust capaciry(from aboveJ �i " " <br /> � , <br /> b}estimated house infittration(irom , � <br /> above) h � <br /> Makeup Air Quanlity Icfm); <br /> j3a—3b] / <br /> �if value is negative,no makeup air is l9 � .�� <br /> needed <br /> 4.For makeup Air Opening Sizing,refer <br /> to Table 501.4.2 <br /> A. Use this column if there are other than fan-assfsted or atmospheriwlly vented gas or oil app(iance or if there are no combustion appiian�es.(Power vent <br /> and dired vent appiiances may be used.) <br /> 8. Use this column if there Is one fan-assisted appliance per venting system.(Appllances other than atmosphericatly ve�ted appilances may also be In- <br /> cluded.) <br /> C, Use this cotumn if there is one atmospfierically vented�oiher than fan-assisted)gas or oil appliance per venii�g system or one sol�d fuel appliance, <br /> D. Use this column rf there are multiple atmospherically vented gas or oil appliances using a common vent or If there are atmospherically vented gas or oi) <br /> appliances and solid fuel appliances. <br /> Page 3 of 6 <br />