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siceada.�s �gg� � 1/19/2017 <br /> `°°`�°``°` Sabre Heating And A/C `°'�d Josh G. <br /> Sedion A <br /> Ventilation Quantity <br /> (Determine quantity by using Table R403.5.2 a Equation 11-1) <br /> Squaze feet(Conditioned area including 3�8 Total required ventilation 170 <br /> Basement—finished or urdinished) � Continuous ventilatfon �c <br /> Number of bedrooms v <br /> Dircttions-DetermJne Me totol an�continuous ventNation rote by either uslnp Ta61e R403.5.2 0►equatlon 11-1. <br /> The roble and equatton are bebw <br /> Table R403.5.2 <br /> Total and CoMinuous Ventilation Rates in cfm <br /> Number of Bedrooms <br /> 1 2 3 4 S b <br /> Conditioned space(in Total/ Total/ Total/ Total/ Total/ Total/ <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 3 <br /> 2001-2500 80 40 95 48 110 55 125 63 140/70 155 8 <br /> 25013000 90 45 105 53 120 60 135 68 150 5 165 83 <br /> 3001-3500 100/50 115 58 130/65 145/73 160 80 175 88 <br /> 3501-4000 110 55 125 63 140 0 155 8 70 85 185 93 <br /> 4001-4500 120 60 135 68 150/75 165/83 1S0 90 195 98 <br /> 4501-5000 130 65 145 3 160 80 175 88 190 95 205 103 <br /> 5001-5500 140 0 155 8 170/85 185/93 200 100 215/308 <br /> 5501-6000 150/75 165/83 180/90 195/98 230 305 225/113 <br /> Equation 11-i <br /> (0.02 x square feet of conditioned space)+[35 x(number of bedrooms+1)]=Total ventilation rate(cfm) <br /> Tota)ventilation—The mechanical ventilation system shall provide suffitient outdoor air to equal the total ventilation rate <br /> average,for each one-hour period according to the above table or equation.For heat recovery ventilators(HRV)and energy <br /> recovery ventilators(ERV)the average hourly ventilation capacity must be determined in consideration of any redudion of <br /> exhaust or out outdoor 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,shail be provided, <br /> on a continuous rate average for each one-hour period.The portion of the mechanical ventilation system intended to be <br /> continuous may have automatic cycling controls providing the average flow rate for each hour is met. <br />