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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 /> NA C405.8 Fractional hp fan For all fractional hp fan motors(1/12-<1 <br /> motors hp),indicate that motors comply with <br /> applicable WSEC efficiency tables;if motor <br /> type is not listed in an efficiency table, <br /> indicate whether fan has an electronically <br /> commutated motor,has motor rated <br /> efficiency of at least 70%,or exception <br /> applied <br /> NA C403.8.3 Fan efficiency For individual fans or fan arrays,indicate in <br /> equipment schedule that rated FEI for all <br /> applicable fans part of a variable-air volume <br /> system is>_0.95 and>_ 1.0 in all other <br /> systems,or exception applied;indicate these <br /> fans are sized at the design point of operation <br /> C403.8.4 Low-capacity For all ventilation system fans with motors<_ <br /> ventilation fans 1/12 hp,indicate in equipment schedule the <br /> fan flow rate and efficacy(cfm/watt),or <br /> exception applied;refer to Table C403.8.4 <br /> NA C403.2.4 Variable flow For fan motors>_5 hp,indicate method of <br /> capacity-fans variable flow control(VSD or equivalent <br /> method)in equipment schedule,or exception <br /> applied <br /> NA C403.8.5.1 Fan airflow control For DX air handling units with cooling <br /> capacity>42,000 Btu/h and evaporative and <br /> chilled water air handling units with fan>_ <br /> 0.25 hp,indicate whether system is single <br /> zone or multiple zone and related control <br /> method(cooling capacity controlled in <br /> response to space temperature,space <br /> temperature is controlled by modulating <br /> supply airflow,or both) <br /> NA C403.8.5.1 Fan airflow control For mechanical cooling systems(includes DX <br /> and chilled water coils)that control cooling <br /> capacity in response to space temperature- <br /> Provide a minimum of two stages of fan <br /> control;indicate minimum fan speed is<_ <br /> 66%of full speed drawing<_40%of full <br /> speed fan power during periods of low cooling <br /> or ventilation only <br /> NA C403.8.5.1 Fan airflow control For other mechanical cooling systems <br /> (includes DX and chilled water coils)that <br /> control space temperature by modulating <br /> airflow(in lieu of,or in addition to, <br /> controlling capacity in response to space <br /> temperature)-Provide fan controls for <br /> modulating supply airflow;indicate minimum <br /> fan speed is<_50%of full speed drawing<_ <br /> 30%of full speed fan power during periods of <br /> low cooling or ventilation only;or exception <br /> applied <br /> NA C403.8.6 Large-diameter Where provided,indicate large-diameter <br /> ceiling fans ceiling fans to be tested and labeled in <br /> accordance with AMCA 230. <br /> ADDITIONAL ENERGY EFFICIENCY MEASURE-IMPROVED HVAC TSPR <br /> Page 7132 <br />