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IL-(A-d <br /> Table 501.4.1 <br /> Procedure to Determine Makeup Air Quantity for Exhaust Appliances in Dwelling Units <br /> MULTIPLE APPLIANCES THAT <br /> ONE OR MULTIPLE FAN- ONE ATMOSPHERICALLY ARE ATMOSPHERICALLY <br /> ONE OR MULTIPLE POWER VENT ASSISTED APPLIANCES AND VENTED GAS OR OIL VENTED GAS OR OIL <br /> OR DIRECT VENT APPUANCES OR POWER VENT OR DIRECT APPLIANE OR ONE APPLIANCES OR SOLID FUEL <br /> NO COMBUSTION APPLIANCESA VENT APPLiANCESe SOLID FUELAPPUANCEc APPLIANCESD <br /> 1.Use the Appropriate Column to Estimate House Infiltration <br /> a)pressure factor <br /> (efm/s 0.15 0.09 0.06 0.03 <br /> b)conditioned floor <br /> area(sf) qq <br /> (Including unfinished basements) <br /> Estimated House <br /> infiltration(cfm): �Q <br /> [1a x ib) <br /> 2.Exhaust Capacity <br /> a)clothes dryer 135 135 135 135 <br /> b)80%of largest <br /> i <br /> exhaust rating(dm): <br /> (not applicable If recirculating system or if powered makeup o/r Is electricall interlocked and matched to exhaust) <br /> c)80%of next largest <br /> exhaust rating c�fm): not Iicable � �� <br /> (not applicable If recirculatingsystem or if powered makeup air is electrical interlocked and matched to exhaust <br /> Total Exhaust Capacity <br /> (cfm): �r <br /> [2a+2b+2c] <br /> 3.Makeu Air Requirement <br /> a)Total Exhaust <br /> Capadty <br /> (from above) <br /> b)Estimated House <br /> Infiltration(from <br /> above <br /> Makeup Air <br /> Quality(cfm): `71 <br /> [3a-3b) <br /> (if value is negative,no makeup airs needed <br /> 4.For Makeup Air Opening Shing,refer to Table 501.4.2. <br /> A.Use this column If there are other than fan-assisted or atmospherically vented gas or oil appliances or if there are no combustion appihmces. <br /> S.Use this column If there is one fan-assisted appliance per venting system.Other than atmospherically vented appliances may also be Included. <br /> C.Use this column If there Is one atmospherically vented(otherthan fan-assisted)gas or oil appliance per venting system or one solid f(rel appliance. <br /> D.Use this coldinn If there are multiple atmospherically vented gas oroll appllances using a cor6mon vent or if thereare atmospherically <br /> vented gas or all appliances and solid fuel appliances. i� c-1 <br /> (AST- <br /> tie- �n ILA LA-1- <br />