VE
R
IF
IE
D
BR
Instructor’s Solutions Manual
AI
To accompany
N
BO
Electricity for HVACR
O
First Edition
ST
Joseph Moravek
ER
and
Laboratory Manual
Nicholas Griewahn
Samuel Shane Todd
Upper Saddle River, New Jersey
Columbus, Ohio
VERIFIEDBRAINBOOSTER
, VE
R
IF
IE
D
BR
AI
N
BO
O
ST
ER
__________________________________________________________________________________
Copyright © 2014 by Pearson Education, Inc., Upper Saddle River, New Jersey 07458.
Pearson Prentice Hall. All rights reserved. Printed in the United States of America. This publication is protected by
Copyright and permission should be obtained from the publisher prior to any prohibited reproduction, storage in a
retrieval system, or transmission in any form or by any means, electronic, mechanical, photocopying, recording, or
likewise. For information regarding permission(s), write to: Rights and Permissions Department.
Pearson Prentice Hall™ is a trademark of Pearson Education, Inc.
Pearson® is a registered trademark of Pearson plc
Prentice Hall® is a registered trademark of Pearson Education, Inc.
Instructors of classes using Moravek, Electricity for HVACR, 1e may reproduce material from the instructor’s
manual for classroom use.
10 9 8 7 6 5 4 3 2 1
ISBN-13: 978-0-13-512537-3
ISBN-10: 0-13-512537-5
VERIFIEDBRAINBOOSTER
, VE
i
R
Table of Contents
IF
End of Unit Questions and Answers
IE
Unit 1: Read This Unit First: What I Need to Know to Understand Electricity 1
D
Unit 2: Ohms Law 3
BR
Unit 3: Safe Use of Electrical Instruments 6
Unit 4: Electrical Fasteners 10
Unit 5: Power Distribution 12
AI
Unit 6: National Electric Code 14
Unit 7: Electrical Installation of HVAC 17
N
Unit 8: Transformers 20
Unit 9: Relays, Contactors and Motor Starters 22
BO
Unit 10: Capacitors 24
Unit 11: Thermostats 25
Unit 12: Pressure Switches 27
O
Unit 13: Miscellaneous Electrical Components 30
ST
Unit 14: How Do Motors Work? 32
Unit 15: Motor Types 34
Unit 16: Green Electronically Commutated Motors (ECM) 37
ER
Unit 17: Understanding Electrical Diagrams 39
Unit 18: Resistors 43
Unit 19: Fundamentals of Solid State Circuits 44
Unit 20: Circuit Boards 46
Unit 21: Air Conditioning Systems 48
Unit 22: Gas Heating Systems 50
Unit 23: Electric Heating Systems 52
Unit 24: Heat Pumps 54
Unit 25: How to Start Electrical Troubleshooting 57
Unit 26: Basic Electrical Troubleshooting Techniques 59
Unit 27: Advanced Electrical Troubleshooting Techniques 62
Unit 28: Practical Troubleshooting 67
Lab Manual Answers
Lab 2.1: Application of Ohm’s Law in Basic Circuits 70
Lab 2.2: Power Calculation and Ohm’s Law Applied to Circuits 71
Lab 3.1: Basic Multimeter and VOM Resistance Measurements 72
Lab 3.2: Taking Voltage and Current Measurements 73
Lab 4.1: Electrical Connections 75
Lab 6.1: National Electric Code® Considerations 76
Lab 7.1: HVACR Electrical Installation and Checklists 77
Lab 7.2: Introduction to Diagrams 78
Lab 8.1: Transformer Identification and Analysis 79
Lab 9.1: Relay, Contactor, and Motor Starter Identification and Specifications 80
Lab 9.3: Relay Logic – Part 2 82
VERIFIEDBRAINBOOSTER
, VE
ii
R
Lab 9.4: Troubleshooting Control Circuits 84
Lab 10.1: Capacitor Selections and Testing 85
IF
Lab 11.1: Mechanical Thermostat Function and Selection 86
Lab 11.2: Electronic and Programmable Thermostat Selection and Function 87
IE
Lab 12.1: Pressure Switches and Other Safety Switches Used in HVACR 88
Lab 14.1: Introduction to Motor Types 90
D
Lab 14.2: Motor Control Systems and Diagrams 92
BR
Lab 14.3: Motor Troubleshooting 93
Lab 16.1: The ECM Motor 96
Lab 17.1: Common Diagrams and Symbols 98
AI
Lab 19.1: Troubleshooting Printed Circuit Boards 100
Lab 22.1: Gas Heating Systems Controls and Wiring 101
N
Lab 23.1: Electric Heating Systems Controls and Wiring 102
BO
Lab 24.1: Heat Pump Controls and Wiring 103
Lab 25.1: Using a DMM for Basic Troubleshooting 104
Lab 26.1: Electrical Troubleshooting – The Hopscotch Method 106
O
Lab 27.1: Advanced Troubleshooting 108
ST
ER
VERIFIEDBRAINBOOSTER
R
IF
IE
D
BR
Instructor’s Solutions Manual
AI
To accompany
N
BO
Electricity for HVACR
O
First Edition
ST
Joseph Moravek
ER
and
Laboratory Manual
Nicholas Griewahn
Samuel Shane Todd
Upper Saddle River, New Jersey
Columbus, Ohio
VERIFIEDBRAINBOOSTER
, VE
R
IF
IE
D
BR
AI
N
BO
O
ST
ER
__________________________________________________________________________________
Copyright © 2014 by Pearson Education, Inc., Upper Saddle River, New Jersey 07458.
Pearson Prentice Hall. All rights reserved. Printed in the United States of America. This publication is protected by
Copyright and permission should be obtained from the publisher prior to any prohibited reproduction, storage in a
retrieval system, or transmission in any form or by any means, electronic, mechanical, photocopying, recording, or
likewise. For information regarding permission(s), write to: Rights and Permissions Department.
Pearson Prentice Hall™ is a trademark of Pearson Education, Inc.
Pearson® is a registered trademark of Pearson plc
Prentice Hall® is a registered trademark of Pearson Education, Inc.
Instructors of classes using Moravek, Electricity for HVACR, 1e may reproduce material from the instructor’s
manual for classroom use.
10 9 8 7 6 5 4 3 2 1
ISBN-13: 978-0-13-512537-3
ISBN-10: 0-13-512537-5
VERIFIEDBRAINBOOSTER
, VE
i
R
Table of Contents
IF
End of Unit Questions and Answers
IE
Unit 1: Read This Unit First: What I Need to Know to Understand Electricity 1
D
Unit 2: Ohms Law 3
BR
Unit 3: Safe Use of Electrical Instruments 6
Unit 4: Electrical Fasteners 10
Unit 5: Power Distribution 12
AI
Unit 6: National Electric Code 14
Unit 7: Electrical Installation of HVAC 17
N
Unit 8: Transformers 20
Unit 9: Relays, Contactors and Motor Starters 22
BO
Unit 10: Capacitors 24
Unit 11: Thermostats 25
Unit 12: Pressure Switches 27
O
Unit 13: Miscellaneous Electrical Components 30
ST
Unit 14: How Do Motors Work? 32
Unit 15: Motor Types 34
Unit 16: Green Electronically Commutated Motors (ECM) 37
ER
Unit 17: Understanding Electrical Diagrams 39
Unit 18: Resistors 43
Unit 19: Fundamentals of Solid State Circuits 44
Unit 20: Circuit Boards 46
Unit 21: Air Conditioning Systems 48
Unit 22: Gas Heating Systems 50
Unit 23: Electric Heating Systems 52
Unit 24: Heat Pumps 54
Unit 25: How to Start Electrical Troubleshooting 57
Unit 26: Basic Electrical Troubleshooting Techniques 59
Unit 27: Advanced Electrical Troubleshooting Techniques 62
Unit 28: Practical Troubleshooting 67
Lab Manual Answers
Lab 2.1: Application of Ohm’s Law in Basic Circuits 70
Lab 2.2: Power Calculation and Ohm’s Law Applied to Circuits 71
Lab 3.1: Basic Multimeter and VOM Resistance Measurements 72
Lab 3.2: Taking Voltage and Current Measurements 73
Lab 4.1: Electrical Connections 75
Lab 6.1: National Electric Code® Considerations 76
Lab 7.1: HVACR Electrical Installation and Checklists 77
Lab 7.2: Introduction to Diagrams 78
Lab 8.1: Transformer Identification and Analysis 79
Lab 9.1: Relay, Contactor, and Motor Starter Identification and Specifications 80
Lab 9.3: Relay Logic – Part 2 82
VERIFIEDBRAINBOOSTER
, VE
ii
R
Lab 9.4: Troubleshooting Control Circuits 84
Lab 10.1: Capacitor Selections and Testing 85
IF
Lab 11.1: Mechanical Thermostat Function and Selection 86
Lab 11.2: Electronic and Programmable Thermostat Selection and Function 87
IE
Lab 12.1: Pressure Switches and Other Safety Switches Used in HVACR 88
Lab 14.1: Introduction to Motor Types 90
D
Lab 14.2: Motor Control Systems and Diagrams 92
BR
Lab 14.3: Motor Troubleshooting 93
Lab 16.1: The ECM Motor 96
Lab 17.1: Common Diagrams and Symbols 98
AI
Lab 19.1: Troubleshooting Printed Circuit Boards 100
Lab 22.1: Gas Heating Systems Controls and Wiring 101
N
Lab 23.1: Electric Heating Systems Controls and Wiring 102
BO
Lab 24.1: Heat Pump Controls and Wiring 103
Lab 25.1: Using a DMM for Basic Troubleshooting 104
Lab 26.1: Electrical Troubleshooting – The Hopscotch Method 106
O
Lab 27.1: Advanced Troubleshooting 108
ST
ER
VERIFIEDBRAINBOOSTER
