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2.02 SHEET METAL WORK <br />A. <br />B. <br />C. <br />• ^ <br />D. <br />1 - <br />! <br />« <br />E. <br />• <br />1 F. <br />iron or steel sheets unless^otherwlsS^in^^n"* 5'°" *‘"=-=oate<l <br />conform accurately t^thl dimlnoin! <br />All ducts shall be installed in ^ccordlntl'^lllt drawings <br />dations of the latest edition nf a<iuoae”!®i ^ recomen- <br />(Systems and Equipment)Air Duct ®°®l‘ <br />ot metal and relntocUrsSa?? be <br />table. Joint duct sealershh? bi 3? S? “’•I' <br />or united Sheet Metal Ccmpf!:“t^u1t^s^a^'lfo?%“p%%v^i-d»2“ual. <br />crossborhen?' CrossbMahinq is not'’*' dimension shall be are insulated. ^ ^ required if the ducts <br />G. <br />H. <br />2.03 <br />A. <br />turning vaneV.*'';^'ous'’t*ic'a'i*'t^*’^*' Eurnish acoustical type <br />daily manufactured vith publilhed'^nl^rf''®"*® oommer- <br />avallable. field or aHop ‘’;a^i’|2**d*??^*s*a'r%*"n“lf‘2?c^^'a*bie. <br />?-"rtfies“t^e d5?h*ord"iL'eier «*thl d“ct'*” <br />di"“«s^*h:u“sho™“?“u'c^Io ’"^'’- <br />registers and diffusers. All JectaLSf i r°""*®'‘°"® grilles.Shall have all longitudinal ductwork <br />sealed with duct sealer ^ ^ traverse joints, butted and <br />punch or bolticonrectio^ in^^tandi!" ®“*^ton- <br />at fixed centers not greater thai spaced <br />locks or seams, known as "ButtiS Pun^h s!!n?!used in lieu of Pittsburg Lock? Snaplock", may be <br />Fittings: Elbows, vaned elbows h-ira w <br />tions, transitions, solitters connec- <br />flexible connections !nd a!^!c« ! '"® dampers, fire dampers, <br />S.MAC.1A. Test holes sha?i hi ?! conform with <br />and noncorrosive vith screvcap aid'ga«et!**'*‘*' “‘Etight <br />UdngJ**iidSg mu’^ot^'* ?n' »>=« <br />Where applicable shall be of thick and <br />thermally equivanelt to thickness to the <br />in Section 15180 - Insulation insulation specified <br />be increased to compeSs"^?'’?o"r th“rJhnh'n*e=srSJ*tJ*?n|‘:*“ <br />DUCTWORK ACCESSORIES <br />Duct Sleeves and Prepared Openings <br />15840-3