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Mechanical Requirements • • of <br /> 2021 WSEC Requirements for Commercial Buildings including Group R2, R3&R4 over 3 stories&all R1 -- Administered by @2024 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 Dedicated outdoor air For buildings with occupancies required to <br /> C403.3.5.4 systems 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 /> C403.3.5 Dedicated outdoor air If natural ventilation exception is applied, <br /> C403.3.5.4 systems 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 /> C403.3.5 Dedicated outdoor air If high efficiency VAV exception is applied, <br /> C403.3.5.4 systems 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 /> C403.3.5 Dedicated outdoor air If compliance with the DOAS provisions is <br /> C403.3.5.6 systems 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 /> C403.3.5 Dedicated outdoor air Refer to Requirements List section after <br /> systems Multiple-Zone Air Systems for High <br /> Efficiency Multiple-Zone VAV Systems <br /> exception to C403.3.5 DOAS <br /> C403.3.5 Dedicated outdoor air Refer to Requirements List section after High <br /> systems 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 DOAS energy For all DOAS systems,indicate exhaust air <br /> recovery method and ER method and basis of rated effectiveness <br /> effectiveness (sensible or latent);indicate Z 68%sensible or <br /> >60%enthalpy recovery ratio at design <br /> conditions;or exception applied <br /> C403.3.5.2 DOAS fan power For DOAS with no fans or fan arrays with <br /> input power z 1kW,indicate total system fan <br /> power does not exceed 1 watt per cfm <br /> C403.3.5.2 DOAS fan power For DOAS with any fans or fan arrays with <br /> input power>_ 1kW,indicate total system fan <br /> power complies with fan power limitation per <br /> Section C403.8.1 <br /> C403.3.5.3 Heating/cooling Indicate systems and equipment associated <br /> system fan controls with the delivery of zone level heating and <br /> with DOAS cooling(fans,hydronic pumps,primary air <br /> dampers,etc.)are configured to shut off,and <br /> central equipment is configured to turn down, <br /> when there is no call for heating or cooling in <br /> the zone they serve <br /> Page 5132 <br />