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Mechanical Requirements • • of <br /> 2018 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 C403.8.2 Motor nameplate hp For all applicable HVAC systems with total <br /> fan motor nameplate hp>5hp,indicate fan <br /> motors specified are the smallest available <br /> motor hp size greater than fan bhp,note <br /> exceptions applied <br /> NA C405.8 Fractional hp fan For all fractional hp fan motors(1/12- 1 hp), <br /> motors indicate that motors comply with applicable <br /> WSEC efficiency tables;if motor type is not <br /> listed in an efficiency table,indicate whether <br /> fan has an electronically commutated motor, <br /> has motor rated efficiency of at least 70%,or <br /> exception applied <br /> NA C403.8.3 Fan efficiency For individual fans>5hp,and multiple fans <br /> combined in series or parallel that operate as <br /> the functional equivalent of a single fan with a <br /> combined total motor hp>5hp,indicate in <br /> equipment schedule that rated FEG for all <br /> applicable fans is>_67,or exception applied; <br /> indicate these fans are sized so total efficiency <br /> is within 15%of the fan maximum total <br /> efficiency <br /> C403.8.4 Group R occupancy For all exhaust fans<400 cfm in Group R <br /> exhaust fan efficacy occupancies,indicate in equipment schedule <br /> the fan flow rate and efficacy(cfm/watt),or <br /> exception applied;refer to Table C403.8.4 <br /> NA C403.2.3 Variable flow For fan motors>_7.5 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 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 /> Page 5125 <br />