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- <br /> M <br /> N • <br /> M <br /> N TABLE 501.4.1 <br /> M PROCEDURE TO DETERMINE MAKEUP AIR QUANTITY FOR EXHAUST APPLIANCES IN DWELLING UNITS <br /> N <br /> N • _ • MULTIPLE APPLIANCES THAT <br /> MM ONE OR MULTIPLE POWER ONE OR MULTIPLE FAN- ONE ATMOSPHERICALLY ARE ATMOSPHERICALLY <br /> N VENT OR DIRECT VENT ASSISTED APPLIANCES VENTED GAS OR OIL VENTED GAS OR OIL <br /> MAPPLIANCES OR NO AND POWER VENT OR APPLIANCE OR ONE APPLIANCES OR SOLID FUEL <br /> N COMBUSTION APPLIANCES" DIRECT VENT APPLIANCES SOLID FUEL APPLIANCE° APPLIANCES° <br /> M <br /> N 1.Use the Appropriate Cohimn to Estimate House Infiltration . • <br /> M t <br /> M a)Pressure factor 0.15 - 0.09 - 0.06 0.03. <br /> N (cfm/sf) .. <br /> .N _ <br /> M b)conditioned floor — ��,„� — _ — <br /> N area(sf) _ - <br /> NM. (including unfinished basements) <br /> N Estimated House • <br /> ainfiltration(cfm): — 'j'� — — -. <br /> N [la x ib] - tl 1 <br /> M <br /> N 2.Exhaust Capacity <br /> M <br /> .M a)clothes shyer 135 135 135 • 135 . <br /> M b)80%of largest -4V <br /> — — - — <br /> M <br /> N exhaust rating(cfm): `"t <br /> _ <br /> M (not applicable if recirculating system or if powered makeup air is electrically interlocked and matched to exhaust) <br /> M c)80%of next largest . <br /> not a applicable — <br /> M exhaust rating(cfm): PP — — • <br /> M (not applicable if recirculating system or if powered makeup air is electrically interlocked and matched to exhaust) <br /> M Total Exhaust Capacity <br /> N - p (. — <br /> — <br /> M [2a4213+2c] • <br /> M 3.Makeup Air Requirement - - <br /> M a)Total Exhaust <br /> M Capacity(from -- — — - <br /> M above) ty�� • <br /> M- b)Estimated House - - <br /> HTo-Filiation(from �''`'1 — — — <br /> N <br /> N <br /> N above) <br /> M Makeup Air <br /> M Quality(cfm): n 1 — — — <br /> M [3a-3b1 �` <br /> N <br /> N (if value is negative,no makeup air is needed - <br /> M 4.For Makeup Air Opening Sizing,refer to Table 501.4.2. . <br /> N <br /> M A.Use this column if these are other than fan-assisted or atmospherically vented gas or oil appliances or if there are no combustion appliances. <br /> M B.Use this column if there is one fan-assisted appliance per venting system.Other than atmospherically vented appliances may also be included. <br /> N C.Use this column if there is one atmospherically vented(other than fan-assisted)gas or oil appliance perveatiag system or one solid fuel appliance. <br /> N D.Use this column if there are multiple atmospherically vented gas or oil appliances using a common vent or if there are atmospherically vented gas or oil <br /> N appliances and solid fuel appliances. <br /> 36 2015 MINNESOTA MECHANICAL CODE <br />