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Section E �.�f��r'�� ��� �/��a� LrJsei��� <br /> , Make-up air <br /> Passive (deteRnined from caiculations from Table 501.3.1) <br /> Powered(determined from calculations irom Table 501.3.1) <br /> Interiocked with exhaust device(determined from calculation from Table 501.3.1) <br /> Other,describe: <br /> LOCBtion of duCt or System ventllation make-up 8i�: Determined from make-up air opening table <br /> C� Size and type(round,rectangular,flex or rigid) <br /> Directions -In order to determine the makeup air, Tab/e 501.3.1 must be fiNed out(see be/ow). For most new <br /> instal/ations, column A will be appropriate, however, if atmospherically vented appliances or solid fue/appliances are <br /> instaNed, use the appropriate column. For existing dwellings,see lMC 501.3.3. P/ease note, if the makeup air quanfity <br /> is negative, no additiona/makeup air will be re-quired for ventilation, if the va/ue is positive refer to Tab/e 501.3.2 and <br /> size the openirrg. Transfer the cfm, size of opening and type(round, ►ectangu/ar, f/ex or rigid)to the/ast line of section D. <br /> The make-up air supp/y must be installed per lMC 501.3.2.3. <br /> Table 501.3.1 <br /> PROCEDURE TO DETERMINE MAKEUP AIR QUANITY FOR EXHAUST EQUIPMENT IN DWELLINGS <br /> (Additional combustion air will be required for combustion appliances,see KAIR method for calcutations) <br /> One or multiple power One or multiple fan- One atmospherically vent Multiple atmospherically <br /> vent or direct vent assisted appliances and gas or oil appliance or vented gas or oil applianc <br /> appliances or no power vent or direct one solid fuel appliance or solid fuel appliances <br /> combustion appliances vent appliances <br /> Column A Column B Column C <br /> �� 0.15 0.09 0.06 0.03 <br /> a)pressure factor(cfm/s� <br /> b)conditioned floor area(s� <br /> (includin unfinished basements d�� <br /> Estimated House Infiltration(cfm): <br /> 1a x 1b Q� <br /> 2.Exhaust Capacity <br /> a)continuous exhaust-only � <br /> ventilation system(cfm);(not � � <br /> applicable to balanced ventilation <br /> systems such as HR� <br /> b)clothes dryer(cim) 135 135 135 135 <br /> c)80%of largest exhaust rating(cfm); <br /> Kitchen hood typically(not applicable <br /> if recirculating system or if powered � 2D <br /> makeup air is electrically interlodced <br /> and match to exhaust) <br /> d)80%of next largest exhaust rating <br /> (cim); bath fan typically(not NOt <br /> applicable if rearoulating system or if A licable <br /> powered makeup air is electrically Pp <br /> inte�locked and matched to exhaust) <br /> Total Exhaust Capacity(cfm); a c� <br /> [2a+2b+2c+2d] 0 J <br /> 3.Makeup Air Quantity(cfm) <br /> a)total exhaust capacity(irom above) $�� <br /> b)estimated house infiltration(from / �O <br /> above) (Q <br /> Makeup Air Quantity(cfin); <br /> [3a—3b](if value is negative,no n �� <br /> makeu air is needed ✓"' <br /> 4.For makeup Air Opening Sizing, <br /> refer to Table 501.4.2 <br /> A. Use this column if there are other than fan-assisted or atmospherically vented gas or oil appliance or if there are no combustion appliances.(Power <br /> vent and direct vent appliances may be used.) <br /> B. Use this column if there is one fan-assisted appliance per venting system.(Appliances other than atrnospherically vented appliances may be included.) <br /> C. Use this column if there is one atmospherically vented(other than fan-assisted)gas or oil appliance per venting system or one solid fuel appliance. <br /> D. Use this column if there are multipte atmospherically vented gas or oil appliances using a common vent or if there are atmospherically vented gas or <br /> oil appliances and solid fuel appliances. <br /> 3 <br />