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I. tc2‘ CSII&I 6% Ventilation, Makeup and Combustion Air Calculations Submittal Form For New Dwellings These blank submittal forms and instructions are available at the City of Chanhassen website and at City Hall. The completed form must be submit- ted in duplicate at the time of application of a mechanical permit for new construction. Additional forms may be downloaded and printed at; http://www.d.chanhossen.mn.usiservibuild.html. ::: ) %/ / - Date 4i'/ ,/,rr - . t ��Com Yleted Section A /� IV(4 Ventilation Quantity (Determine quantity by using Table N1104.2 or Equation 11-1) Square feet(Conditioned area Including jo Basement—finished or unfinished) 11* Total required ventilation �/��[CJ� — Number of bedrooms —3 Continuous ventilation /e Directions-Determine the total and continuous ventilation rate by either using Table N1104.2 or equation 11-1. The table and equation are below. Table N1104.2 Total and Continuous Ventilation Rates(in cfm) Number of Bedrooms 1 2 3 4 5 6 Conditioned space(in Total/ Total/ Total/ Total/ Total/ Total/ sq.ft.) continuous continuous continuous continuous continuous continuous 1000-1500 60/40 75/40 90/45 105/53 _ 120/60 135/68 1501-2000 70/40 85/43 100/50 115/58 130/65 145/73 2001-2500 80/40 95/48 110/55 125/63 140/70 155/78 2501-3000 90/45 105/53 120/60 135/68 150/75 165/83 3001-3500 100/50 115/58 130/65 145/73 160/80 175/88 3501-4000 110/55 125/63 140/70 155/78 170/85 185/93 4001-4500 120/60 135/68 _ 150/75 165/83 180/90 195/98 4501-5000 130/65 145/73 160/80 175/88 190/95 205/103 5001-5500 140/70 _155/78 170/85 185/93 200/100 215/108 5501-6000 150/75 165/83 180/90 195/98 210/105 225/113 Equation 11-1 (0.02 x square feet of conditioned space)+[15 x(number of bedrooms+1)]=Total ventilation rate(cfm) Total ventilation—The mechanical ventilation system shall provide sufficient outdoor air to equal the total ventilation rate average, for each one-hour period according to the above table or equation. For heat recovery ventilators(HRV)and energy recovery ventila- tors(ERV)the average hourly ventilation capacity must be determined in consideration of any reduction of exhaust or out outdoor air intake,or both,for defrost or other equipment cycling. Continuous ventilation-A minimum of 50 percent of the total ventilation rate,but not less than 40 cfm,shall be provided,on a con- tinuous rate average for each one-hour period. The portion of the mechanical ventilation system intended to be continuous may have automatic cycling controls providing the average flow rate for each hour is met. RECEIVED G:\SAFETYUK\Vent-makeup-comb air submittal(2).docx Page 1 of 6 6, vJUN 2 9 2O1; L,eCITY OF ORONO