Transcription of Duct Construction Standards
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Duct Construction Standards
I I I I I II. IIII II. II I. II A RD INDU I I. W S.. I. II. II. TR . 7 th . III.. IIIIIIIIII.. DU. IES . IIIIIIIIIII. CT CON.. Rev isio S. n*.. III. RD. ST.. R . I. II. A. UC D. II. TIO N S T A N. I. II. II II. II IIII. IIIIIII. * Revised to be in compliance with SMACNA HVAC. Duct Construction Standards , 2nd ed., 1995. Duct Construction Standards For Positive & Negative Static Pressures And Submittal Data Engineering Specifications PROJECT SUBMITTED BY. LOCATION. CONSULTANTS TO THE SHEET METAL INDUSTRY. ENGINEER DATE. 111 Riverview Drive Monessen, PA 15062 (724) 684-5500 1-800-466-9374 FAX (724) 684-8697 COPYRIGHT 1998. WARD INDUSTRIES. Foreword TEST RESULTS. The following tests of rectangular duct sections and transverse joints were conducted in accordance with Section VII of the SMACNA HVAC Duct Construction Standards , 2nd ed.
All transverse joints, longitudinal seams and duct wall penetrations All transverse joints and longitudinal seams Transverse Joint B C 4” w.g. and up 3” w.g. 2” w.g. In addition to the above, any variable air volume system duct of 1” and 1/2” w.g. construction class that is upstream of the VAV boxes shall meet Seal Class C. J 24 26T
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