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Mechanical Requirements List, pg 19 of 25 <br /> 2018 WSEC Requirements for Commercial Buildings including Group R2,R3&R4 over 3 stories&all R1 -- Administered by©2021 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 /> C403.6.1 Air systems serving Identify supply air systems serving multiple <br /> multiple zones zones and the zones they serve on plans; <br /> indicate whether system is VAV and method <br /> of primary air control;or provide supporting <br /> documentation for applied exception to VAV <br /> C403.6.1 VAV air terminal Provide equipment schedules on plans that list <br /> primary supply all VAV air terminals and types(fan-powered <br /> airflow series and parallel air terminals,single duct <br /> and dual duct air terminals,etc) <br /> For each air terminal include:maximum <br /> primary supply airflow rates during zone peak <br /> heating and zone peak cooling;maximum <br /> terminal airflow during reheating,recooling or <br /> mixing;minimum ventilation airflow rate,and <br /> the basis for these values;if IMC or ASHRAE <br /> 62.1 multiple zone equation is the basis for <br /> minimum flow rates,provide this calculation <br /> on plans <br /> C403.6.2 Single duct VAV Indicate single duct terminal units are <br /> terminal units configured to reduce primary supply air <br /> before reheating or recooling <br /> C403.6.3 Dual duct systems- For systems with separate warm air and cool • <br /> terminal--units I air ducts,indicate terminal units ere <br /> configured to reduce the flow from one duct <br /> to minimum before mixing with air from the <br /> other duct <br /> C403.6.8C40 VAV system static- Indicate locations of duct static pressure <br /> 3.6.9 pressure sensors and sensors on plans:include at least one sensor <br /> DDC set points per major duct branch;verify controller <br /> setpoint pressure at each sensor is_< 1.2 inch <br /> w.g. <br /> For systems with zone level DDC,indicate <br /> controls are configured to monitor zone <br /> damper positions and reset static pressure <br /> setpoint based on the zone requiring most <br /> pressure;include control logic that <br /> automatically detects and generates an alarm <br /> if any zone excessively drives reset logic,and <br /> allows building operators to exclude zones <br /> from reset logic <br /> C413.6.4 VAV system supply Indicate controls automatically resets supply <br /> air reset air temperature in response to building loads <br /> or outdoor air temperature;or exception <br /> applied <br /> C403.6.5 Multiple-zone VAV For systems with zone level DDC controls, <br /> system ventilation indicate controls are configured to <br /> optimization controls automatically reduce outdoor airflow in <br /> response to changes in system ventilation <br /> efficiency;or exception applied <br /> Page19/25 <br />