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. � � 1�322.1104 Milulesota Ru1e t � - -� Page 2 of 8 <br /> � v C Y� wE��n �. ��.. <br /> �„�.,...,_�� <br /> Exception: If the local ventilation requirements according to IRC Section R303.3�are being <br /> met by the continuous ventilation system,it shall Ue capable of operating at a rate not more <br /> than 100 percent greater than required by Section Nl 104.2.1. <br /> N1104.2.2 Intermittent ventilation.The differeuce between the total ventilation rate <br /> and the continuous ventilation rate shall be based on flow rates as designed or as <br /> installed. � <br /> Table N1104.2 <br /> TotaJ and Continuous Ventilation Rates (in efin) <br /> Number of Bedrooms ;_� <br /> 1 2 3 4 �° 5 6' <br /> Conditioned TotaU Total/ Total/ Total/ Total/ Total/ <br /> space' (in Continuous Continuous Continuous Contimious 'Co.��nuous Continuous <br /> sq. ft.) <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 ll0/55 125;63 140/70 155!78 <br /> 2501-3000 90/45 105/53 120/60 1�5/68 150/75 165/83 <br /> 3001-3500 100/50 115/58 130/65 145/73 160/80 175/88 <br /> 3501-4000 110/55 125/63 l40/70 ]55/78 170/85 185/93 <br /> 4�01-4500� 120/60 135/68 150/75 165/83 �0/90 ., 195/98 � C�� �� <br /> ��-4�4�-5000 130/65 145/73 160/80 175/88 190/95 205/103 �„ ^��� �,�.�. <br /> 5001-5500 140/70 155/78 170/85 185/93 200/100 215/108 <br /> 5501-6000'- 150/75 165/83 180i90 195/98 210I105 225/113 <br /> � Conditioned space includes the basement. <br /> ' If conditioned space exceeds 6000 sq. ft. or there are more than 6 bedrooms,use Equation 11-1 <br /> fi�om Section N 1104.2 to calculate total ventilation rate. <br /> N1104.3 Ventilation system requiremeuts. The mechanical ventilation system shall be one <br /> of tlu�ee types: exhaust according to Section N11043.1; balanced, and HRV/ERV according <br /> to Section N 1104.3.2; or other method according to Section Nl 104.3.3. <br /> N1104.3.1 Exhaust systeuis.Fans used to comply with the continuous ventilation part <br /> of the mechanical ventilation system shall: <br /> 1. meet the minimum continuous ventilation xate in Section N1104.2.1 at the poult of <br /> discharge; <br /> 2.Ue designed and certified by the equipment manufacturer as capable of continuous <br /> operation at the rated cfiz7; <br /> 3. have a maximum 1.0 sone per HVI Standard 91� for surface motuited fans; <br /> 4. be pennitted to use a required overcun�ent protection device as a discomlect per the <br /> National Elect�-ic Code, incoiporated by reference in Minnesota Rules, chapter 1315; and <br /> 5. comply with the Mimiesota Mechanical Code, chapter 1346;which may require <br /> https:/1www.revisor.leg.state.mn.us/itiiles/?id=1322.1104 4/�0/2.009 <br />