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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 /> C403.6.10, Central plant if complying via high efficiency heating water <br /> Item 15 efficiency plant:Indicate all VAV terminals have <br /> hydronic heating coils served by a heating <br /> water system with either gas-fired boiler(s) <br /> with thermal efficiency(Et)Z 92%,air-to- <br /> water heat pumps,or heat recovery chillers; <br /> indicate hydronic heating coils are sized per a <br /> maximum 120°F entering water temperature <br /> during peak demand <br /> C403.6.10, Central plant If complying via high efficiency chilled water <br /> Item 15 efficiency plant:Indicate all VAV air handlers have <br /> cooling coils served by chillers with rated <br /> IPLV efficiency that exceeds WSEC listed <br /> IPLV by at least 25%per Table C403.3.2(7) <br /> (note water-cooled IPLV is max,all others are <br /> min);indicate smallest chiller or compressor <br /> in plant is<20%of the total plant capacity, <br /> or provide thermal storage sized for>20%of <br /> total plant capacity <br /> C403.6.10, Fault detection and Indicate DDC system includes automatic fault <br /> Item 16 diagnostics detection and diagnostics(FDD)configured <br /> to monitor operation and provide fault <br /> reporting of all required parameters for all <br /> VAV air handlers and VAV air terminal units <br /> in the HPVAV system <br /> HIGH EFFICIENCY SINGLE-ZONE VAV SYSTEMS-EXCEPTION TO C403.3.5 DOAS,MUST COMPLY WITH ALL 8 PROVISIONS TO <br /> BE ELIGIBLE <br /> C403.12, Air economizer Indicate system is configured for 100%air <br /> Item 1 economizer operation and complies with all <br /> related economizer requirements per C403.5 <br /> (without economizer exceptions) <br /> C403.12, Direct digital controls Provide DDC controls for all components of <br /> Item 2 (DDC) system per C403.4.11 (regardless of system <br /> size);identify all DDC system input/output <br /> control points;indicate capability for trending <br /> and graphical display <br /> C403.12, Outdoor airflow For systems with minimum required outdoor <br /> Item 3 measurement and air> 1,000 cfm,provide an airflow <br /> control monitoring station that is configured to <br /> measure outdoor air intake under all load <br /> conditions;indicate controls that adjust <br /> outdoor air cfm via DCV per C403.7.1 <br /> C403.12, Maximum allowable For each fan system serving a single-zone <br /> Item 4 fan power VAV system,provide calculations that verify <br /> fan system electrical input power is<_90%of <br /> the fan power budget in accordance <br /> withC403.8.1.1 <br /> C403.12, Supply airflow Provide controls that adjust supply airflow <br /> Item 5 control based on the heating and cooling loads; <br /> indicate control sequence that limits minimum <br /> fan speed to 30%of peak design airflow or <br /> required ventilation during unoccupied mode, <br /> whichever is less <br /> Page 29132 <br />