Laserfiche WebLink
2018 WSEC Requirements for Commercial Buildings including Group R2, R3 & R4 over 3 stories & all R1 -- Administered by @2022 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 />C403.5.4.1 <br />Water economizer <br />For eligible systems where water -side <br />capacity <br />economizer may be provided in lieu of air <br />economizer, indicate system is capable of <br />100% design cooling capacity at 50°F db / <br />45°F wb outdoor air temperatures; indicate if <br />threshold for 100% design cooling capacity <br />via economizer must be lowered to 45°F db / <br />40°F wb due to dehumidification <br />requirements <br />C403.5.4.2 Water economizer Indicate that the pressure drop across <br />maximum pressure precooling coils and heat exchangers in water <br />drop economizer systems do not exceed 15 feet <br />(4572 mm) <br />NA C403.5.5 DX equipment For DX air handlers with economizer and <br />economizer fault cooling capacity >_ 54,000 Btu/h, provide a <br />detection and fault detection and diagnostics (FDD) system <br />diagnostics to monitor economizer system operation and <br />report faults <br />HYDRONIC SYSTEMS - EQUIPMENT SELECTION & PERFORMANCE <br />C403.3.2.1 Maximum air cooled For chilled water plants and buildings with > <br />chiller capacity 500 tons of cooling capacity, indicate air- <br />cooled chiller capacity is <_ 100 tons, or <br />exception applied <br />C403.6.7 <br />Large capacity <br />For buildings >_ 300 tons of cooling capacity, <br />cooling systems <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 />C403.3.2.2 <br />Non-standard water- <br />For water-cooled centrifugal chillers not <br />cooled centrifugal <br />designed for operation at standard conditions, <br />chillers <br />provide calculations documenting maximum <br />full load and part load rated equipment <br />performance requirements <br />C403.3.3 <br />Hot gas bypass <br />For cooling equipment with hot gas bypass, <br />limitation for chillers <br />provide either multiple step unloading or <br />continuous capacity modulation; indicate <br />bypass capacity per Table C403.3.3 <br />C403.4.3 <br />Large capacity boiler <br />For hydronic systems with only a single boiler <br />C403.3.4 <br />systems <br />that has > 500,000 Btu/h input capacity, <br />indicate multi -stage or modulating burner <br />For boiler system (single or mulltiple) 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 />C403.2.3 <br />Variable flow <br />For pump motors >_ 7.5 hp, indicate method <br />capacity - pumps <br />of variable flow control (VSD or equivalent <br />method) in equipment schedule, or exception <br />applied <br />HYDRONIC SYSTEMS - CONTROLS <br />C403.4.3 <br />Boiler sequencing <br />Indicate automatic controls that sequence <br />operation of multiple boilers <br />Page 15125 <br />