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Catie Peck-Long Ext691 ( 10/10) 01/30/2015 09:06:08 AM -0600 <br /> Direciions-In order to determine the mokeup air, Tnble 502.3.1 must be fllled ou[(see be/ow). For mosf new insYallotions, col�mn A <br /> wll/be appropriare,however, ljofmospherfca!!y vented app/lances orsolid fue/app!lances are lnstalled, use the appropilote colamn. <br /> Far exfsNnD dwtUirtps.see/MC 501.3.3. Please note,if the makeup air quaniiry is negative,na odditinna!makeup air wil/be re- <br /> quired for ventflairon,!f the value is positive refer to Tob/e 501.3.2 ond size the apening. Transjer Che cfm,slre of opening and type <br /> (round, rettangular,flex or rlp/d)to the lasi line of secilon D. The make-up alr supp/y must be rnstoNed per IMC 501.3.2,3. <br /> Tabte 501.3.1 <br /> PROCEDURE TO DETERMtNE MAKEUP AIR QUAfVITY FOR[XNAUST EQUIPMENT 1N DWELLING5 <br /> (Additional combustian ai►will be re uired for combustion a liances,see KAfR method for cakuut}ons) <br /> One o�multiple power One or muhiple hn- O�x atmospherially vent Multiple atmospherical- <br /> vent or direct vent a� assisted appliances and gas or oil applience or ly vented gas or oi! <br /> pllances or no combus- power veM or direct veet one solid fued ipplbnce appllances or soifd fuet <br /> Nonapplfances appli�nces �ppliances <br /> Column C Column D <br /> Calumn A tolumn e <br /> 3. <br /> a)pressure factor 0.25 0.09 0.06 0.03 <br /> (dm/sf) <br /> b)condRioned floorarea(s��includ'+ng �; � � •.� <br /> unfinished basemenu) ' M�� j <br /> e <br /> Estimated House Infiltr+tion�dm�:(ia �" �---�3 . '� ') �r <br /> x lb) -" ` � " <br /> 2.EKh�uat Capatity <br /> a)Continuousexhaust-only ventilatlon <br /> syscem(cfm);(nct applinble to ba- ,..,,,,.,. -- <br /> lanced ventilatton systems such as <br /> NRV <br /> bj clothes dryer(dm� 135 135 135 135 <br /> c)80%of largest exhaust rating{cfm►; <br /> Kkchen hood typicaily <br /> r:; <br /> (not applicable H recirtulating system �� ;� c,�,? �,,,� <br /> or if powered makeup air is electricafly ; ��� <br /> inierlocked and match to exhaust) <br /> d)80%of next targest exhaust rating <br /> (cfm}; bath fan typically (Vot , <br /> (not applicable if recireulating system �,.� �,% <br /> or it powered makeup air is electrically ApP�icable C;� <br /> interlucked and matched to exhaust) <br /> Tocal Exhaust GpacRy(dm); -,x-. ... .. �=-^ '` +'" <br /> j2a t 2b+2c+2dJ {-, � �L� <br /> 3.Makeup Alr Qwntity(cfm) , , <br /> a)total exhaust npacity ffrom abeve) t��' ,:' � �'% � <br /> r,^ � .�� (�", <br /> I <br /> b)estimated house inflRratlon(from �� a <br /> above) _� .� �.<l, �� l; <br /> Makeup Air Quantity(cfmj; <br /> (3a-3b) �;•,� �,�.. 1 ., t:.� <br /> (if value ls negative,nv makeup air is '�.� ;`' <br /> � ..� � <br /> needed. <br /> 4, For makeup Air Opening Saing,refer � <br /> to Table 501.4.2 <br /> A. Use this celumn If there are ather than fan-ascicted ar atmospherically vented gas or oil applbnce or if there are no combustion appliances.(Power vent <br /> and direct vent appliances may be used,) <br /> B. Use this cofumn'rf there is one fan-assisted appliance per venting system.(Appiiances other than.atmospherically vented appNances may aiso be in- <br /> :luded.) <br /> :, Use this column if there Is one atmospherically vented�other than fan-asslsted)gas or oil appiiance per venting system or one solid fuef appflance, <br /> ), Use thls wlumn If there are mu8iyie atmosphericalty vented gas or oil appliances using a common vent or K there are atmospherically vented gas or oi! <br /> �ppltances andsolid fuel appliances. <br /> Page 3 of 6 <br />