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Duct Calculation Slide RuleOne 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.

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Manual J Residential Load Calculation (8th Edition - Full) [ANSI/ACCA 2 Manual J - 2016]Manual J 8th Edition is the national ANSI-recognized standard for producing HVAC equipment sizing loads for single-family detached homes, small multi-unit structures, condominiums, town houses, and manufactured homes. A proper load calculation, performed in accordance with the Manual J 8th Edition procedure, is required by national building codes and most state and local jurisdictions.

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Maria's Restaurant - Technician’s Guide & WorkbookThis Guide & Workbook is intended to give the reader a basic understanding of the commercial HVAC design process, including how seemingly different elements interact, and how to combine the basic design steps to complete the required calculations. Maria’s Restaurant is a case study designed to provide an example of the approach needed to succeed in developing commercial designs.

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Technician’s Guide & Workbook for Duct Diagnostic & RepairThe Technician's Guide equips practitioners with the knowledge to properly implement all of the measurement procedures required in the HVAC QI Specification.

This Guide & Workbook is intended to provide a working knowledge of heating and cooling duct systems, an understanding of the major issues concerning efficiency, comfort, health, safety; and practical tips on diagnostics, installation and repair of duct systems.

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Understanding Manual D® — Residential Duct SystemsWritten by Jack Rise, one of the country’s leading HVACR instructors, the purpose of this book is to give you all the tools necessary to properly design a ducted distribution system. This is not a replacement for Manual D, but a companion guide.

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Understanding Manual J® - A Companion GuideUnderstanding Manual J® - A Companion Guide, is the must have book for anyone who is just learning to perform a load calculation or looking to use a ACCA approved software program or app to run a Manual J. Written by Jack Rise, he uses real terms, easy to understand examples to explain all the factors that affect HVAC equipment sizing, from the climate; shape and orientation of the house; to the window areas and window orientations, and more.

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