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CONSULTINO STRIJCTURAL ENGINEERS <br />Quentin Martin <br />Owner <br />Martin Brothers Construction <br />Madhan Kumar K, P.E. <br />Structural Engineer <br />Structurology lnc <br />40000 Fremont Blvd, Suite F <br />Fremont, CA 94538 <br />Structurology Project No: 20005.005 <br />Date: February 41h,2020 <br />RE: Santa Ana EOS Fitness Fan Mounting <br />The MacroAir manual states that the fan is to be mounted with Unistrut on joists at eight feet on <br />center. We understand that this EOS fitness has joists at ten feet on center. The attached <br />calculation shows that in order to maintain equivalent bending moment in the Unistrut the fan <br />must be mounted outside of the middle 4.5 feet of the span. <br />Regards, <br />4t2020 <br />Madhan Kumar K, P.E <br />Owner <br />Structurology lnc <br />ctvlL <br />STRUCTUROLOGY <br />This letter is to confirm the acceptable use of the MacroAir Airvolution-D3 fan on joist spacings <br />oftenfeetoncenterattheSantaAnaEoSFitneSsloCatedat@ <br />92705. <br />Therefore it is acceptable to mount this fan on joists spaced ten feet on center so lono as the <br />fan is mounted outside of the middle 4.5 feet of the Unistrut soan. <br />77991 <br />6/30/2021