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,i , <br /> ,, <br /> � ' <br /> � manufactured by the fan manufacturer. Provide minimum <br /> , 12" high curb. Coordinate required curb base type with <br />', roof construction,pitch, and flashing requirements. See <br />' ' architectural drawings. <br /> �� <br />�, � 7. Upblast housing when scheduled on drawings. � <br /> ' 8. Low silhouette or louvered penthouse type housing when <br /> ' scheduled on drawings. ' <br />' PART 3 -EXECUTION <br /> ' 3.1 INSTALLATION <br /> ,, <br /> ' A. Install fans in accordance with manufacturer's published <br /> installation instructions. <br /> ;I <br /> i B. Secure fans to curbs with stainless steel screws. <br /> ,i <br /> ,; <br /> � C. Connect duct to fans to allow for straight and smooth airflow. <br /> ,, <br /> ; E. Provide flexible connections between fan and duct. <br /> • � F. Install fan level plus or minus 5 degrees. <br /> � <br /> ' G. Final installation shall be free of leaks. <br /> � <br /> ' 3.2 START-UP, TESTIlVG,DEMONSTRATION <br /> A. Start-up fans after checkout to insure proper alignment and phased <br /> electrical connections. <br /> i B. Test fans individually and as part of a system. <br /> 'I <br /> ;i C. Where required, insure that fans are interlocked with supply and/or <br /> return fans and with fire alarm system. <br /> END OF SECTION <br /> , <br /> � ��' <br /> ; ICT 99 84 <br /> 15862 - 3 <br /> �� <br /> { <br />