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2018 WSEC Requirements for Commercial Buildings including Group R2, R3 & R4 over 3 stories & all R1 -- Administered by @2022 NEEA, All rights reserved <br />The following information is necessary to check a mechanical permit application for compliance with the mechanical systems and equipment requirements in the <br />Washington State Energy Code, Commercial Provisions. <br />For questions about this report, contact WSEC Commercial Technical Support at 360-539-5300 or via email at com.techsupport@waenergycodes.com <br />C403.3.5 <br />C403.3.5.4 <br />Dedicated outdoor air <br />systems <br />For buildings with occupancies required to <br />comply with the DOAS provisions per Table <br />C403.3.5, identify on plans all occupancies in <br />the building and indicate which occupied <br />spaces are required to have ventilation air <br />delivered by a DOAS; or exception applied <br />If natural ventilation exception is applied, <br />identify these spaces on plans; indicate <br />operable window area complies with IMC <br />Section 402; provide documentation <br />describing how required ventilation will be <br />provided during all occupied hours, including <br />during inclement weather <br />If high efficiency VAV exception is applied, <br />identify these spaces on plans; refer to Single <br />Zone VAV section for Groups A-1, A-2 and <br />A-3 occupancy classifications, or Multiple <br />Zone VAV for other than Groups A-1, A-2 <br />and A-3 (per Table C403.3.5) <br />If compliance with the DOAS provisions is <br />deemed to be impractical, provide <br />documentation that demonstrates the alternate <br />design strategy applied that achieves a <br />comparable level of energy efficiency, as pre - <br />approved by the AHJ <br />Refer to Requirements List section after <br />Multiple -Zone Air Systems for High <br />Efficiency Multiple -Zone VAV Systems <br />exception to C403.3.5 DOAS <br />Refer to Requirements List section after High <br />Efficiency Multiple -Zone Air Systems for <br />High Efficiency Single -Zone VAV Systems <br />exception to C403.3.5 DOAS <br />C403.3.5.1 <br />DOAS energy <br />For all DOAS systems, indicate exhaust air <br />recovery method and <br />ER method and basis of rated effectiveness <br />effectiveness <br />(sensible or latent); indicate >_ 60% sensible or <br />> 50% enthalpy ER effectiveness based on <br />delta between outdoor air and return air <br />enthalpies at design conditions; or exception <br />applied <br />If applying exception for DCV, identify <br />occupant load in space and airflow control <br />configured to reduce ventilation rate by >_ <br />50% when occupancy is less than design <br />occupancy <br />C403.3.5.1 <br />DOAS fan power <br />For DOAS with total system fan hp < 5 hp, <br />indicate total system fan power does not <br />exceed 1 watt per cfm <br />For DOAS with total system fan hp > 5 hp, <br />indicate total system fan power complies with <br />fan power limitation per Section C403.8.1 <br />Page 3125 <br />