Self-Study Technical Training Workbooks
HARDI's Education Committee has published a number of training items available for independent study or in-house group training sessions. HARDI Member/Non-member prices are listed. Order through a local HARDI wholesaler and save! Click on “Member Directory” or contact HARDI for names of local HARDI distributors. (All Workbooks List Price = $50, HARDI Member Price = $25)
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Fundamentals of Materials Handling
For new or untrained warehouse workers and counter persons. Explains the importance of efficient warehouse operations to company success. Covers safety, receiving, storing and shipping of goods. Soft cover workbook format, 86-pages. Also available in Spanish (Spanish Version List: $50.00 HARDI Members: $25.00 or available on CD $600.00 for unlimited in-house duplication).
How to Read Residential Ladder Diagrams
The rules for preparing schematic (elementary) wiring diagrams used in residential heating and cooling are presented in a building block approach. Common symbols used by industry are identified. A quick review of basic electricity appears in appendix. Soft cover, workbook format 57-pages.
Humidification - Theory & Application
Explains the physical laws relating to moisture in air. Illustrates humidifier operating characteristics. Shows how to select a unit for a building and describes the importance of good maintenance. Three-ring binder, 120-pages. Includes a study guide and review questions.
Indoor Air Quality and the Air Conditioning Technician
A primer in indoor air quality for the HVAC technician. Identifies typical causes for IAQ complaints and how the HVAC system can often be the source of the problem. Soft cover workbook format, 73-pages.
Residential Prefabricated Duct Systems
Covers standard sheet metal items used in residential heating and cooling duct systems. Explains use of special fittings; difference between flexible air duct and flexible connector; and lists equivalent lengths for common fittings used in duct design. Soft cover workbook format, 85-pages.
Selection of Supply Outlets & Return Inlets
A practical explanation of the complex interaction of supply air registers on room air motion and the effect on occupant comfort. How to select and size diffusers, plus return air problems and solutions. Soft cover workbook format, 101-pages.
The Basic Refrigeration Cycle
Identifies major components and accessory devices used in the traditional mechanical refrigeration cycle. Covers compressors, cold controls, defrost timers, filter-driers and more. Soft cover workbook format, 80-pages.
Venting Gas Furnaces
Explains current venting tables for Category 1 furnaces using B vent system examples. Category 4 furnace venting problems are also described. Soft cover workbook format, 88-pages.






