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1-��:: <br /> Ventilation, Makeup and Combustion Air Calculations <br /> Submittal Form For New Dweilings <br /> These blank submlttal forms and instructlons are avaiiable at the Clty of Chanhassen website and at City Hall. The completed form must be submlt- <br /> ted ln dupllcate at the t3me of applicatlon of a mechanlcal permlt for new constructlon. Additional forms may be downloaded and pr(nted at: <br /> http;//www.ci.ch anhassen.mn.us/serv/bulld.html. <br /> Slte address � C , �� Date _�„ <br /> Contractor A' , f Completed � J <br /> �.T � '� A B N � ��� <br /> Section A <br /> Ventilation Quantity <br /> (Determine quantlty by using Table N3104.2 or Equatlon 11-1) <br /> Square feet(Condltfoned area Including Q � <br /> Basement—flnlshed or unflnlshed) � `-� Total requlred ventllatlon <br /> Number of bedrooms � Contlnuous ventllatlon � <br /> Dlrections-Determine the total and continuous ventilarlon rate by elther us(ng Table N1104,2 or equatlon 11-1. <br /> The table and equation are below. <br /> Table N3104.2 <br /> Total and Contlnuous Ventllatlon Rates(in cfm) <br /> Number of eedrooms <br /> 1 2 3 4 5 6 <br /> Conditloned space(fn Total/ Total/ Total/ TotalJ Tota!/ Total/ <br /> s .ft,) continuous contlnuous continuous tontlnuous contlnuous contlnuous <br /> 1000-1500 60/40 75/40 90/45 105/53 120/60 13S/68 <br /> 15a1-2000 70/40 85/43 1Q0/50 115/58 130/65 145/73 <br /> 2001-2500 80/40 95/48 110/5S 125/63 140/70 155/78 <br /> 250i-3000 90/45 105/53 120/50 135/68 150/75 165/83 <br /> 3001-3500 100/50 115/5$ 130�65 145/73 160/80 175/88 <br /> 3501-4000 110J55 125/63 140/70 155/7$ 170/85 185/93 <br /> 4001-4500 120/60 135/68 150/75 165J83 180/90 195/9$ <br /> 4501-5000 130/65 145/73 160/80 175/88 190/95 2Q5/103 <br /> S�O1-5500 140/70 155/78 170/85 185/93 200/1Q0 215/108 <br /> 5501-6000 150/75 165/83 180/90 195/98 210/105 225/113 <br /> Equatlon 11-1 <br /> (0.02 x square feet of condltioned space]+[15 x(number of bedrooms+1)]=7ota!ventllatlon rate(cfm) <br /> Total ventllatlon—The mechanical ventilation system shall provide sufflclent outdoor alr to equal the total ventilation rate average, <br /> for each one-hour period according to the above table or equatlon. For heat recovery ventilators(HRV)and energy recovery ventlla- <br /> tors(ERV)the average hourly ventflation capacity must be determined in conslderatlon of any reductfon of exhaust or out outdoor <br /> air Intake,or both,for defrost or other equipment cycling, <br /> Contlnuaus ventllatlon-A minimum of 50 percent of the total ventllation rate,but not less than 40 cfm,shall be provlded,on a con- <br /> tinuous rate average for each one-hour period, The portion of the mechanlcal ventllatlon system(ntended to be continuous rnay <br /> have automatic cycling controls providing the average flow rate for each hour is met, <br /> G:ISAFETYWK\Vent-makeup-comb alr submltta!(2).docx Page 1 of 6 <br />