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ISBN 13: 9781418066642

ISBN 10: 1418066648

Author: John E. Hohman; Joseph Moravek

Pages: 464

Published: 06/17/2009

Price: $96.95 Add to cart

The second installment in a series of useful and resourceful guides, HVACR 201, continues to build upon the basics of the HVACR trade. The result of a joint effort by industry leading Air Conditioning Contractors of America (ACCA), PHCC Educational Foundation Plumbing Apprentice & Journeyman Training Committee (PHCC Educational Foundation), and the Refrigeration Service Engineers Society (RSES), the book begins with simpler HVACR concepts and progresses into increasingly complex theories and skills. Starting with coverage of all of the important components of a system, the book advances to deal with topics in electrical ,heating, motors , and cooling- then moving to troubleshooting and installation procedures. Theoretical knowledge is presented alongside practical, industry-relevant examples, allowing both entry-level technicians and 2nd year apprentices to easily learn and apply key HVACR concepts.

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  • industry-specific language is used in a clear, straightforward writing style, ensuring readers gain information that is readily applicable to the world of their trade
  • detailed pictures, graphs, and tables clarify and illustrate important systems and processes
  • field examples and real-world scenarios encourage readers to think critically, preparing them for work in the field
  • reflects a curriculum developed by a subject matter committee sponsored by the organizations
  • based on the need for the industry to have technicians who know both theory and practice
  • special section on maintenance and inspection
Author Bio
John E. Hohman
John Hohman has over 35 years as a member of RSES. He has also held positions as n installer, serviceman, designer, and engineer in HVACR. He holds a patent in cascade refrigeration. He is an instructor, department chair, and administrator for several colleges. He is also a consultant and trainer for the industry.
Joseph Moravek
Joseph Moravek is the HVACR director at Nance Universal HVACR Technical School in Beaumont, Texas, where he is responsible for short- and long-term training course development and updating curriculum. He also occasionally teaches local and overseas HVACR classes for Nance. In addition, he serves as a consultant with Mechanical Training Service, Houston, Texas, doing EPA training, continuing education for contractors and other custom developed coursework. A licensed air conditioning and refrigeration contractor in the state of Texas, he holds several ICE and NATE certifications, is a member of the ASHRAE, CARE and AEE professional organizations and has a master's degree in education. Mr. Moravek started in the HVACR profession in 1976 doing heat load calculation for a federally-funded weatherization program. His experience also includes working as an HVACR technician and inspector for the city of Houston. He served as the HVACR lead instructor at Lee College for 14 years.
cover image - HVACR 201
Table of Contents
1)Year 2, First Semester
a)Chapter One: Review of Refrigeration Cycle
i)Basic refrigeration cycle
ii)Saturation, superheat and subcooling
iv)Metering devices
b)Chapter Two: Compressors
ii)Scroll 2 stage
iii)Hermetic and semi-hermitic
iv)Rotary types, how they work, applications
c)Chapter Three: Refrigerants and Lubricants
(1)Applications and required lubricants
(2)CFCs, HCFCs, chemical strength
(3)Safety and handling
(4)EPA certification
(5)Recovery and recycle
d)Chapter Four: Refrigerant Handling Certification
e)Chapter Five: Condensers
(1)Air cooled
(2)Water cooled
f)Chapter Six: Metering Devices
i)Capillary tubes
ii)Fixed orifice/plate
iii)Thermostatic expansion valves (TXV)
iv)Electronic expansion valves (EXV)
g)Chapter Seven: Accessories
iii)Service valves/access ports
iv)Suction/liquid line heat exchangers
v)Low ambient controls
vi)Reversing valves (defrost, heat pump)
vii)Relief valves
viii)High/low pressure control
ix)Vibration eliminators
x)Crankcase heater
h)Chapter Eight: Evaporators
i) Types (plate, fin) and applications
ii) Latent and sensible heat removal
iii) Superheat
iv) Direct expansion and flooded
v) Pressure drop
vi) Moisture removal
vii) Defrost applications
i)Chapter Nine: Evacuation and Charging
i)Leak testing methods
iv)Vacuum pumps
j)Chapter Ten: Heating
i)Types of heating appliances
ii)Components, burners and valves
iii)Boilers: water and stream
iv)Sequence of operation
vii)Gas pipe capacity
viii)Ignition devices
ix)Combustion process and testing
x)Code and safety
xi)Carbon monoxide
xii)Electric and strip
xv)Combustion and secondary air
xvi)Gas manifolds
xvii)Temperature controls
xviii)Safety and Limit controls
xix)Sequence of operation
k)Chapter Eleven: Electrical
i)Ohms law review and application
ii)Transformers, voltage, line vs load
iii)Types of wire and wire sizes
iv)Circuits and schematics
ix)Sources: single and 3 phase
x)Switches and loads
xiv)Overload protectors/overcurrent protection (fuses & circuit breakers)
xv) Overcurrent/fuses
xx) Sizing
xxi)Disconnects and wire sizing
l)Chapter Twelve: Electrical Troubleshooting
i)Symptoms, possible causes and a...