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  • Manual D – Residential Duct Systems


    Design a residential duct system in less time with the streamlined Manual D duct procedure. The newly released Manual D has been significantly revised to include:

    • Updated and expanded VAV guidance, with detailed examples.
    • Impacts of excess length, sag and compression in flexible ducts.
    • New equivalent length values for flex duct junction boxes.
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  • ACCA Ductulator – Duct Calculation Slide Rule


    One of our most popular catalog items! This durable two-sided plastic sizing wheel comes with a complete instruction manual for residential and commercial duct-sizing procedures. Designed by Hank Rutkowski.

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  • HVAC Duct Construction Standards, Metal and Flexible – SMACNA


    HVAC Duct Construction Standards – Metal & Flexible is primarily for commercial and institutional projects and contains first time ratings for the TDF and the TDC connectors. Schedules have been standardized on…

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  • Fibrous Glass Duct Construction Standards – SMACNA


    Fibrous Glass Duct Construction Standards by SMACNA provides the performance characteristics for fibrous glass board as determined by the North American Insulation Manufacturers’ Association (NAIMA) and Underwriters Laboratories (UL) as well as specifications for closures and illustrations of how to construct the full range of fittings. Also covered are details for connections to equipment and air terminals, hanger schedules, reinforcement requirements, fabrication of rectangular duct and fittings, closures of seams and joints, channel and tie rod reinforce…

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  • Residential Comfort System Installation Standards Manual


    This publication incorporates complete and comprehensive installation standards for residential heating and cooling systems.

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  • Flexible Duct Performance and Installation


    Flexible Duct Performance & Installation Standards is used and referenced by designers, installers, contractors and users for evaluating, selecting, specifying and installing flexible duct for heating and air conditioning systems.

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  • Fibrous Glass Duct Construction Standards – NAIMA


    Fibrous Glass Duct Construction Standards by NAIMA includes comprehensive instructions on how to fabricate and install fibrous glass duct systems. This illustrated handbook depicts methods of constructing simple straight duct sections plus tees, elbows and complex fittings, installing accessories, connecting ducts to HVAC equipment. Outlines UL 181A approved closure systems, recommended methods of reinforcement, support, and damage repair. Includes a detailed job inspection checklist. (Designed for use in conjunction with the Videotapes: “…

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  • Technicians Guide and Workbook for Duct Diagnostics and Repair


    Provides an understanding of the major issues concerning efficiency, comfort, health, and safety, with practical tips on installation and repair as well as testing and diagnosing duct systems. Intended for use by contractors, systems design­ers, etc.

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  • HVAC Systems – Testing, Adjusting and Balancing


    This version has been extensively updated from the 1993 version and includes all of the many changes that have taken place in the HVAC industry. New sections covering VFD, DDC, lab hood exhaust balancing, and the latest changes in balancing equipment and procedures are included.

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