Electrical Theory and Application for HVACR


Book Description

With the majority of HVACR service calls being electrical in nature, it is important for technicians to have a solid understanding of electrical fundamentals allowing them to develop a systematic and methodical approach to troubleshooting. Electrical Theory and Application for HVACR provides students and practicing technicians with the information and knowledge necessary to accurately and safely diagnose and solve electrical system faults. Electrical Theory and Application for HVACR was written by HVACR instructors for HVACR instructors to simplify the instruction of electricity. The manual is full of color illustrations and includes worksheets that provide students and practicing technicians with the information and knowledge necessary to accurately and safely diagnose and solve electrical system faults. Main topics include: safety and hazard awareness, electrical fundamentals, motors, circuits and components, wiring diagrams, automated control systems, and troubleshooting.




Understanding Electricity and Wiring Diagrams for HVAC/R


Book Description

This book provides HVAC/R service technicians with exceptionally practical information on the unique wiring diagrams, methods, technician short-cuts, and potential pitfalls encountered on the job. It begins with a discussion of general electricity and electrical circuits, and then moves quickly into explaining wiring diagrams for HVAC and refrigeration systems, and the new devices that are encountered with each new diagram. It features accessible, technician-level explanations of electronics. Electrical Concepts. Simple Currents. Standing Pilot Furnaces. Heating/Air Conditioning Circuits. Troubleshooting Strategies. Testing and Replacing Common Devices. Repair Strategies. Commercial Systems. Motor Applications. Power Wiring. Testing and Replacing Motors and Start Relays. How Motors Work. Low-Voltage Room Thermostats. Electronic Ignition Gas-Fired Furnaces. Oil Heat. Electric Heat. Boilers. Heat Pump. Ice Makers. Miscellaneous Devices and Accessories. Wiring Techniques. DDC Controllers. For HVAC/R service technicians.




Electricity for the HVACR Technician


Book Description

Electricity for the HVACR Technician introduces foundational concepts in HVACR electrical systems, guiding students through basic system design and construction to troubleshooting for complex circuits and devices. Combining conceptual electrical knowledge with practical, step-by-step techniques, it equips new technicians with the skills and knowledge necessary to service and repair commercial and residential HVACR systems.




Gas Heating


Book Description

Depending on what part of the country that you reside in, gas-burning heating systems can be either an absolute necessity or a rarity. For those that maintain, service and install gas heating systems or those just looking for a more in-depth source of accurate information, this modular training program focuses on furnaces and boilers that burn natural gas or LP. The combustion of gas to generate heat can be dangerous and should be thoroughly understood by HVAC technicians. This program covers many facets of gas heating including: combustion, system components and controls, heating sequences, installation, and troubleshooting. Through advancements in technology, modern heating systems have become far more efficient than their predecessors. Integrated circuit boards and electronic ignition systems have replaced the mechanical controls and manually lit pilots of older systems. Today, technicians may encounter furnaces or boilers that are older than they are, complex high-efficient systems, or anything in between. It is critical that they have a working knowledge of all these systems. This manual provides students and practicing technicians with the information and knowledge necessary to safely work on systems that incorporate gas combustion to provide heat. The information to service, maintain, and install these systems is also presented in an easy-to-understand format. The manual is full of color images and diagrams and includes end-of-chapter worksheets. Gas Heating was written to be a primary text that focuses specifically on gas-burning heating systems which can be used as a stand-alone text or a supplement to your current text book.




Electricity, Electronics, and Wiring Diagrams for HVACR


Book Description

For all courses in electricity, electronics and wiring for HVACR; and for Principles of HVACR courses. Electricity, Electronics and Wiring Diagrams for HVACR is a complete, simple, and up-to-date guide to the essentials of electricity and electronics for technicians working in today's HVACR field. Part I gives students a firm foundation in the electrical and electronics concepts utilized in HVACR. Then, using these concepts, Part II presents a wide variety of practical circuits and systems, addressing the challenges HVACR technicians are likely to encounter most often. Building on the diagrams and solutions provided here, students will be able to address even the most complex circuits and problems they will encounter in the field. New topics in this edition include Kirchoff's Law, Vector Analysis of AC Circuits, high-efficiency ECM motors, and remote control thermostats. Designed for simplicity, this text presents clear objectives, easy-to-understand explanations, and well-focused review questions.







Electricity and Controls for HVAC/R


Book Description

Now in its fourth edition, Electricity and Controls for HVAC/R equips readers with the information needed to work effectively with all types of motors and control devices found in the heating and air conditioning industry. Prior knowledge of electricity is not required as this book begins with discussion of essential basic electricity and electrical circuits concepts. Numerous schematic diagrams, plus step-by-step troubleshooting procedures, are included to acquaint readers with all of the different types of circuits commonly encountered in the HVAC-R field. With an eimphasis on electrical safety, plus an all-new troubleshooting unit, this edition of Electricity and Controls for HVAC/R also features expanded information on thermostats, short cycle timers, heat pressure controls for refrigeration, variable frequency drives, and more!




Refrigerant Charging and Service Procedures for Air Conditioning


Book Description

This Ebook is dedicated to those who are eager to learn the HVACR Trade and Refrigerant Charging/Troubleshooting Practices. In this book, you will find Step by Step Procedures for preparing an air conditioning and heat pump system for refrigerant, reading the manifold gauge set, measuring the refrigerants charge level, and troubleshooting problems with the system's refrigerant flow. This book differs from others as it gives key insights into each procedure along with tool use from a technician's perspective, in language that the technician can understand. This book explains the refrigeration cycle of air conditioners and heat pumps, refrigerant properties, heat transfer, the components included in the system, the roles of each component, airflow requirements, and common problems. Procedures Included: Pump Down, Vacuum and Standing Vacuum Test, Recovery and Recovery Bottle Use, Refrigerant Manifold Gauge Set and Hose Connections, Service Valve Positions and Port Access, Preparation of the System for Refrigerant, Refrigerant Charging and Recovery on an Active System, Troubleshooting the Refrigerant Charge and System Operation




Heat Pumps


Book Description

This 78-page book provides a comprehensive overview of the heat pump system, it¿s operations and principles. The heat pumps covered in this book are basic systems. The intent of the book is to offer technicians information to build upon to enhance their knowledge of the air conditioning and heating field, specifically, heat pumps. Before installing or servicing a heat pump system, the technician must have proper training and knowledge of air conditioning/refrigeration theory, principles and operation. New highly efficient equipment heat pump systems using HFC refrigerant (R-410A) are being sold and installed. These systems pose new demands for installers and service technicians. A heat pump¿s efficiency can be greatly diminished, regardless of the type of refrigerant, if it is not properly installed, serviced and maintained.




Low GWP (A2L) Refrigerant Safety


Book Description

As the HVACR industry continues to move forward and innovate, the refrigerants that were once so commonplace are now being phased out. Replacing them are more energy efficient, environmentally friendlier refrigerants, known as Low GWP refrigerants. Many of these new refrigerants are classified by ASHRAE as A2L, or slightly flammable. The industry is also seeing expanded use of some hydrocarbon (A3) refrigerants, such as propane and isobutane. Students and technicians will require additional training for the safe handling and transportation of these refrigerants. The Low GWP refrigerant program manual covers: Refrigerant safety Introduction to Low GWP refrigerants Refrigerant properties and characteristics The refrigeration cycle Working with refrigerant blends Proper installation and service guidelines Flammable refrigerant considerations Explanation of the associated codes and standards for A2L refrigerants