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    • GAS TRADE: UNIT 24 (7th ed. pub. 2020)

    Codes & Standards - Purchase

    GAS TRADE: UNIT 24 (7th ed. pub. 2020)

    Gas Trade: Unit 24 - Air handling

    SKU: 2022339 Published by CSA Group Publication Year 2020 88 pages

    Product Details

    • Overview

    CSA Group's 2020 Gas Trade materials reference the Red Seal Program's trade outlines for your preparation to become a nationally recognized gasfitter. Please visit the Red Seal Program's website for more details. 


    Overview:


    Air movement increases or decreases the rate of heat gain and loss from human bodies and the buildings in which they live and work. The principles governing building heating, cooling, and ventilation are directly related to the comfort levels and health of building occupants. Air handling is described in relation to such premises.


    Various bodies and institutions throughout Canada provide approved courses in different aspects of air handling. These courses deal with calculations of heating and cooling loads and air system design in more detail than can be covered in this learning unit. One such organization is the Heating, Refrigeration and Air Conditioning Institute of Canada (HRAI).


    Learning Objectives:


    At the end of this unit, you will be able to:


    • Describe the requirements and standards governing the principles of heat loss and heat gain;

    • Define terminology used in air handling;

    • Describe heat transfer and the principles of heat loss calculations and ventilation requirements as they apply to air handling systems;

    • Describe the properties and characteristics of air;

    • Describe operation and installation of gas-fired duct furnaces;

    • Describe the function of the duct system;

    • Calculate air flow through the duct system using standard equations;

    • Describe the relationships between the mechanical components of the air handling system and air flow; and

    • Describe service and adjustment procedures for air handling units.


    Revisions Summary:


    The 7th Edition of the Training materials are revised to include the following changes: 

     

    • Updated to current standards and codes. 

    • Updated assignment questions and added chapter numbers.

    • Assignment questions now included at the end of each chapter.  

    • New preface with a listing of standards and codes referenced in each module. 

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