DeWalt HVAC Code Reference

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Get your next HVAC job done right – the first time – with this reference that makes clear hundreds of the most common International Mechanical Code requirements, violations, and installation concerns. Built on thick laminated pages to withstand on-the-job abuse, with clear color illustrations and photos, you'll have the critical information and measurements you need to get the job done so that it passes inspection.


Here you'll find the Code requirements for drilling and notching studs, and for installing appliances in attics, compartments, garages, under the floor, and on the roof. Illustrations show the Code requirements for exhaust systems applicable to clothes dryers, range hoods, microwaves, and mechanical as well as natural ventilation. You'll also find heating and venting requirements, duct systems, return air, boilers and water heaters, combustion air, venting, crawl space installations, HVAC equipment for inside or outside installation, air handlers, condensing units, and package units.


Learn to figure heat loss and heat gain using manual J Load calculations, and where to place a propane tank, underground oil tanks, and gas piping. Illustrates how to size gas piping using the longest length method, then lists requirements for installing appliances in bedrooms, overflow drain lines, gas appliance connectors, and much more.


If you've ever needed a practical Code reference built to survive storage in your tool box, you should have this book.

Weight 0.5600
ISBN 978-0-9777183-8-2
Page Count 78
Author American Contractors Exam Services
Publisher DeWalt
Dimensions 5 X 7

Get your next HVAC job done right – the first time – with this reference that makes clear hundreds of the most common International Mechanical Code requirements, violations, and installation concerns. Built on thick laminated pages to withstand on-the-job abuse, with clear color illustrations and photos, you'll have the critical information and measurements you need to get the job done so that it passes inspection.

Here you'll find the Code requirements for drilling and notching studs, and for installing appliances in attics, compartments, garages, under the floor, and on the roof. Illustrations show the Code requirements for exhaust systems applicable to clothes dryers, range hoods, microwaves, and mechanical as well as natural ventilation. You'll also find heating and venting requirements, duct systems, return air, boilers and water heaters, combustion air, venting, crawl space installations, HVAC equipment for inside or outside installation, air handlers, condensing units, and package units.

Learn to figure heat loss and heat gain using manual J Load calculations, and where to place a propane tank, underground oil tanks, and gas piping. Illustrates how to size gas piping using the longest length method, then lists requirements for installing appliances in bedrooms, overflow drain lines, gas appliance connectors, and much more.

If you've ever needed a practical Code reference built to survive storage in your tool box, you should have this book.

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Table of Contents

Abbreviations, 1-3
Permits and Inspection, 4-5
Mechanical System Installation, 6-7
Drilling and Notching, 6-7
Equipment, 8
Access, 9-13
Appliances in Attics, 9
Appliances in Compartments, 10
Appliances in Garages, 11
Appliances Under the Floor, 12
Appliances on Roof, 13
Exhaust Systems, 14-19
Clothes Dryers, 14-15
Range Hoods/Microwaves, 16-17
Mechanical Ventilation, 18
Natural Ventilation, 19
Required Heating, 20
Required Venting, 21
Duct Systems, 22-23
Installation, 22
Standards, 23
Return Air, 24-25
Boilers and Water Heaters, 26-27
Boilers, 26
Expansion Tank, 27
Combustion Air, 28-34
Confined and Unconfined Space, 28
Vertical Ducts to Attic, 29
Crawl Space and Attic Venting, 30
Prohibited Sources, 31
Single Opening — All Air from Outdoors, 32
Vertical Ducts, 33
Horizontal Ducts, 34
Venting, 35-37
Venting and Flues, 35
Required Vent Diameter, 36
Vent Termination, 37
Crawl Space, 38
HVAC, 39-45
Inside Equipment, 39
Outside Equipment, 40-41
Conductor Sizing, 42
Air Handlers, 43
Condensing Units, 44
Package Units, 45
Manual J Load Calculation, 46-47
Heat Loss, 48-50
Heat Gain, 51-53
Propane Tank Placement, 54-55
Propane Tanks, 56
Underground Tanks, 56
Piping System Installation, 57
Gas Pipe Sizing, 58-68
Longest Length Method, 58-68
Calculating the Longest Length, 60
Identifying the Proper Row to Use on the Table, 61
Sizing the Pipe, 62-68
Appliances in Bedrooms, 69
Condensate Lines, 70
Gas Appliance Connections, 71
Table G2428.2(1) [504.2(1)], Type B Double Wall Gas Vent, 72
Reference Tables, 73
Minimum Distance Between the Lowest Edge of a Grease Filter and the Cooking or Heating Surface, 73
Gauges of Metal Ducts and Plenums Used for Heating or Cooling, 73
Minimum Exhaust Rates for 1- and 2-Family Dwellings, 73
Reduction of Combustible Clearances, 74
Residential Duct Sizing Guide - Rectangular and Round, 75
Capacity, 76
Heating Capacity Formula, 76
Cooling Capacity Formula, 76
Figuring in Gallons: Round Tanks, 76
Factors and Formulas, 77
Correction Factor, 77
Belt Drive Formulas, 77
Watts of Heat, 77
Nominal Air Flow, 77
Approximate Heat Values: BTU's, 77

A Note To The Reader

The DEWALT ® HVAC Code Reference is not a formal code interpretation and is not intended to replace the code. You will need a copy of the 2009 International Mechanical Code® and the 2009 International Residential Code® to check all references given in this book.

This book is designed to help you understand some, but not all, phases of HVAC installation. The systems illustrated in this book are not the only way to install the systems shown. Local codes sometimes have exceptions or regulations that are enforced along with the 2009 International Mechanical or Residential Code.

Anyone working on a HVAC project should contact their local building inspection department, office of planning and zoning., and/or department of permits in order to learn which codes are being used and how they will affect their project.

Both the 2009 International Mechanical Code and 2009 International Residential Code are copyrighted work owned by the International Code Council, Inc.

"International Code Council, International Mechanical Code and International Residential Code" are registered trademarks of the International Code Council, Inc.

For more information on the International Code Council, the International Mechanical Code or the International Residential Code, please contact:

Phone: 1-888-ICC-SAFE (422-7233). Web: www.iccsafe.org

HVAC CODE REFERENCE

Get your next HVAC job done right—the first time—with this new reference guide from an industry leader in contractor resources. The DEWALT® HVAC Code Reference uses the International Mechanical Code® as the foundation for providing readers with the knowledge and skills needed to install or modify HVAC equipment successfully. It illustrates hundreds of the most common code requirements, violations, and installation concerns providing the critical information needed to get the job done right. Topics covered include:

  • Materials and Duct Construction

  • Propane Tanks

  • Chimneys

  • Load Calculations

  • Vents

  • Exhaust Systems

  • Grease Dud Systems

  • Fireplaces and much more

DEWALT® offers a complete line of resources designed for the professional to increase productivity, reduce downtime, and get the job done right.

TRADE REFERENCE
Construction
Electrical
HVAC
Plumbing and more

EXAM & CERTIFICATION
Building Contractor's Licensing
Electrical Licensing
HVAC Licensing
Plumbing Licensing

CODE REFERENCE
Building
Electrical
HVAC
Plumbing