ONE OF OUR NEW BOOKS IN THE
Indoor Environment Technician's (IET) Library Series

88 Pages, 6 x 9 softcover
On CD $24

DEMYSTIFYING CONTROLS

The only book that gives you the basic principles of HVAC automatic control systems. Explains how three basic subsystems form any control systems, and shows how these subsystems use four basic components. This book uses pneumatic control systems to give you an understanding of any HVAC control system. It provides the knowledge that makes direct digital controls easy to understand. Includes English-Spanish trade terms. A companion book, Direct Digital Controls for HVAC Technicians is being developed. Includes English-Spanish terms.

CONTENT HIGHLIGHTS
What This Book is About
HVAC Systems
Basics of Control Systems
Electric Control Systems
Pneumatic Control Systems
A VAV Pneumatic Control System
Maintaining Control Systems
And Identifying Problems
Review Answers
Glossary
English-Spanish Terms

Testimonials:

Your book, Control System Basics for HVAC Technicians, is a great help to the HVAC industry and all people working in this field. This book explains how systems work together with the controls, how controls help identify problems, how to troubleshoot, and how controls operate air systems. This is one of the very best books to keep with you at all times.  It is a great reference to have at your fingertips.
             Dale Barnett, Owner
             Payson Sheet Metal

Leo has done it again. The material in Control System Basics for HVAC Technicians is written in easy format and will be understood by a basic technician with ease. The step-by-step language and graphics make it easy for the control service tech to understand the sequence of operation. This book will give him/her a basic understanding of controls and HVAC systems.
          Bernie Merkel,
          Director of HVAC Service Training
        International Training Institute, VA