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- - l 4,o c4-011 <br /> T. E. , Inc. <br /> C 830. North Riverside Drive, Suite 200 <br /> Renton, Washington 98057 ecevr,Phone: 425-970-3753 / FAX: 425-970-3756 <br /> www.tei-engineering.com <br /> April 18, 2014 C1 y <br /> Permit 1 riETr F <br /> Mulvanny G2 Architecture <br /> 1110 112th Ave NE, Suite 500 <br /> Bellevue, WA 98004 <br /> (425) 463-2000 <br /> Attn: Craig Chapman <br /> Re: Costco Wholesale — Everett, WA <br /> Optical Improvement <br /> (TEI#12-279, MG2#95085029, Everett Plan Review#M1404-016) <br /> Dear Craig, <br /> The following is in response to the Everett Public Works mechanical plan review <br /> comments. <br /> 1. <br /> Please submit manufacturer's documentation indicating that the split systems comply with the <br /> economizer requirement of WSEC C101.4.3.2 <br /> Response: <br /> Per WSEC C403.3.1 Exception 1: Economizers are not required for split systems with total cooling <br /> capacity rated in accordance with C403.2.3 of less than 33,000 Btu/h with SEER values more than 15% <br /> above minimum (min+15%=SEER 15). <br /> See attached submittal for manufacturer documentation new split system capacity and SEER value. <br /> Existing total capacity of units with economizers (air economizer capacity) is 3,590,800 Btu/h.The <br /> maximum capacity of all small equipment without economizers is 5%of the air economizer <br /> capacity, 179,500 Btu/h.See attached summary of building cooling capacity. <br /> Small equipment without economizers will have 60,000 Btu/h of capacity.See attached equipment <br /> schedules of small equipment without economizers. <br /> If you have further questions, please call our office. <br /> Sincerely, <br /> Daniel Sievert <br /> 279MBD-MECH.doc izjr/ <br />