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I , <br /> Site address 364 West Lake St Orono Date 2-17-14 <br /> Contractor Sabre P & H Completed Todd B <br /> Section A <br /> Ventilation Quantity <br /> (Determine quantity by using Table N1104.2 or Equation 11-1) <br /> Square feet(Conditioned area including <br /> Basement—finished or unfinished) 900 Total required ventilation 2155 <br /> Number of bedrooms Continuous ventilation I 28 <br /> Directions-Determine the total and continuous ventilation rate by either using Table N1104.2 or equation 11-1. <br /> The table and equation are below. <br /> Table N1104.2 <br /> Total and Continuous Ventilation Rates(in cfm) <br /> Number of Bedrooms <br /> 1 2 3 4 5 6 <br /> Conditioned space(in Total/ Total/ Total/ Total/ Total/ Total/ <br /> sq.ft.) continuous continuous continuous continuous continuous continuous <br /> 1000-1500 60/40 75/40 90/45 105/53 120/60 135/68 <br /> 1501-2000 70/40 85/43 100/50 115/58 130/65 145/73 <br /> 2001-2500 80/40 95/48 110/55 125/63 140/70 155/78 <br /> 2501-3000 9000 x .02= 180 150/75 165/83 <br /> 3001-3500 160/80 175/88 <br /> 3501-4000 (4 bedrooms x 15) + 15=75 170/85 185/93 <br /> 4001-4500 180/90 195/98 <br /> 4501-5000 total vent=255/2= 128constant 190/95 205/103 — <br /> 5001-5500 J.,,,,,,la J.,,,, ��.,, 200/100 215/108 <br /> 5501-6000 150/75 165/83 180/90 195/98 210/105 225/113 <br /> Equation 11-1 <br /> (0.02 x square feet of conditioned space)+[15 x(number of bedrooms+1)]=Total ventilation rate(cfm) <br /> Total ventilation—The mechanical ventilation system shall provide sufficient outdoor air to equal the total ventilation rate average, <br /> for each one-hour period according to the above table or equation. For heat recovery ventilators(HRV)and energy recovery ventila- <br /> tors(ERV)the average hourly ventilation capacity must be determined in consideration of any reduction of exhaust or out outdoor <br /> air intake,or both,for defrost or other equipment cycling. <br /> Continuous ventilation-A minimum of 50 percent of the total ventilation rate,but not less than 40 cfm,shall be provided,on a con- <br /> tinuous rate average for each one-hour period. The portion of the mechanical ventilation system intended to be continuous may <br /> have automatic cycling controls providing the average flow rate for each hour is met. <br /> G:\SAFETY\JK\Vent-makeup-comb air submittal(2).docx <br />