Guy W. Gupton, Jr. HVAC Controls operation and maintenance.pdf

HVAC Controls

Operation & Maintenance

Third Edition

Guy W. Gupton, Jr.

THE FAIRMONT PRESS, INC.

Lilburn, Georgia

MARCEL DEKKER, INC.

New York and Basel

Library of Congress Cataloging-in-Publication Data

Gupton, Guy W., 1926-

HVAC controls: operation & maintenance/Guy W. Gupton, Jr.--

p. cm.

Includes index.

ISBN 0-88173-394-6

1. Heating--Control. 2. Ventilation--Control. 3. Air conditioning--

Control. I. Title.

TH7466.5 .G87 2001

00-066249

HVAC controls operation & maintenance/Guy W. Gupton, Jr.

publication may be reproduced or transmitted in any form or by any

means, electronic or mechanical, including photocopy, recording, or

any information storage and retrieval system, without permission in

writing from the publisher.

Published by The Fairmont Press, Inc.

700 Indian Trail, Lilburn, GA 30047

tel: 770-925-9388; fax: 770-381-9865

http://www.fairmontpress.com

Distributed by Marcel Dekker, Inc.

270 Madison Avenue, New York, NY 10016

tel: 212-696-9000; fax: 212-685-4540

http://www.dekker.com

Printed in the United States of America

10 9 8 7 6 5 4 3 2 1

0-88173-394-6 (The Fairmont Press, Inc.)

0-13-061039-9 (Marcel Dekker, Inc.)

While every effort is made to provide dependable information, the publisher, authors,

and editors cannot be held responsible for any errors or omissions.

Table of Contents

Basic Functions of HVAC

Systems and Control Systems

HVAC Equipment-to-Control Interactions

Operating and Maintaining HVAC Control Systems

The Mathematics of

Control Systems: Controller Equations

Performance Prediction in HVAC Control Systems

HVAC Control System Set-Up

Maintaining Electric and Electronic Control Systems

Maintaining Pneumatic Control Systems

Maintaining Local Loop to BAS Interfaces

Chapter 10 HVAC Control System Checkout Procedures

Chapter 11 Fine Tuning Program for Pneumatic Control Systems

Chapter 12 Troubleshooting ATC Systems

Chapter 13 Tools & Fixtures for

ATC System Operation and Maintenance

Chapter 14 Training Control System

Operating and Maintenance Personnel

Chapter 15 Installing Hybrid Pneumatic and

Chapter 16 Operating Direct Digital Control Systems

Chapter 17 Testing Direct Digital Control Systems

Chapter 18 A Short Course in Psychrometrics

Glossary of Terms

Foreword

This book is one in a series addressing building systems design,

operation, and maintenance.

The material presented in this book can be used for office refer-

ence, for formal in-house training programs, and for informal self study.

The material is not intended to be used as a replacement for manufac-

turers’ instructions for specific equipment.

This book is written to provide a complete and concise reference

volume for persons engaged in the operation and maintenance of auto-

matic control systems serving building heating, ventilating, and air con-

ditioning systems, including refrigerating machines, and interface to

building automation systems (BAS) systems. Energy management and

control system (EMCS) are of such diverse types and arrangements that

it is not possible to cover them in this book.

This book assumes a basic familiarity with HVAC equipment and

systems and the related control systems. In order to allow use of the

book as a study guide, the first chapters review HVAC system processes

and equipment, control system types and equipment, and equipment-to-

control interactions. The succeeding chapters cover specific control sys-

tem functions including electrical interlock and motor starting, electrical

and electronic control system diagrams, pneumatic control system dia-

grams, maintenance of electric and electronic control systems, mainte-

nance of pneumatic control systems, testing direct digital control (DDC)

systems, and training operating and maintenance personnel.

The Appendix includes a comprehensive glossary of terms used in

HVAC systems and in control system operation and maintenance.

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