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2018 WSEC Requirements for Commercial Buildings including Group R2, R3 & R4 over 3 stories & all R1 -- Administered by 02024 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 />('403.5.4.1 "rater economizer <br />For eligible systems where water -side <br />capacity <br />economizer nray be provided in lieu of air <br />economizer, indicate system is capable of <br />I(H)% design cooling capacity at 50"P db / <br />45"F wb outdoor air temperatures. indicate if <br />threshold for 1001;6 design cooling capacity <br />Nia economizer must be lov+°ered to 45°F dh / <br />40°1--'wb due to dehumidification <br />requirements <br />C403.5.4.2 Water economizer <br />Indicate that the pressure drop across <br />maximum pressure <br />precooling coils and heat exchangers in water <br />drop <br />economizer systems do not exceed 15 feet <br />(4572 nun) <br />('403.5.5 DR etluipment <br />For DX air handlers with economizer and <br />economizer fault <br />cooling capacity >_ 54,0(H) Btu& provide a <br />detection and <br />fault detection and diagnostics (FDD) system <br />diagnostics <br />to monitor economizer system operation and <br />report faults <br />HYDRONIC SYSTEMS - EQUIPMENT SELECTION & PERFORMANCE <br />C403.3?.l Maximum air cooled For chilled t+ater plants and buildings with > <br />chiller capacity <br />C403.6.7 <br />Large capacitn. <br />cooling systems <br />C403.3.2.2 <br />Non-standard water- <br />cooled centrifugal <br />chillers <br />C403.3.3 <br />Hot gas bypass <br />limitation for chillers <br />C403.4.3 <br />Large capacity boiler <br />C403.3.4 <br />systems <br />('403.2.3 <br />Variable flow <br />capacity - pumps <br />HYDRONIC SYSTEMS - CONTROLS <br />500 tons of cooling capacity, indicate air- <br />cooled chiller capacity is <_ 100 inns. or <br />exception applied <br />For buildin`_s >_ AN) tons of cooling capacity. <br />indicate method of multi -stage or variable <br />capacity control (VSD. multiple staged <br />compressors. or max capacity of any single <br />unit <br />For water-cooled centrifugal chillers not <br />designed for operation at standard conditions, <br />provide calculations documenting maximum <br />full load and part load rated equipment <br />performance requirements <br />For cooling equipment with hot gas bypass, <br />provide either multiple step unloading or <br />continuous capacity modulation; indicate <br />bypass capacity per Table C403.3.3 <br />For hvdronic systems with only a single hoilet <br />that has > 500,000 Btu/h input capacity.. <br />indicate multi -stage or modulating huroer <br />For boiler sv.stem (single or nudltiple) with > <br />1,000,000 Btu/h input capacity. indicate <br />turndown ratio per Table C403.3,4 and <br />method (multiple single input boilers, <br />modulating boilers, or combination) <br />For pump motors > 7.5 hp, indicate method <br />of variable flow control (VSD or equivalent <br />method) in equipment schedule. or exception <br />applied <br />('403.4.3 Boiler sequencing Indicate automatic controls that sequence <br />operation of multiple hoilers <br />Page 15125 <br />