Arizona Air Conditioning and Refrigeration, Including Solar Commercial Contractor (C-79) Exam Book Package

Arizona Air Conditioning and Refrigeration, Including Solar Commercial Contractor (C-79) Exam Book Package

The Arizona Air Conditioning and Refrigeration, Including Solar Commercial Contractor (C-79) Exam Book Package is designed for candidates preparing for the Arizona commercial air conditioning, refrigeration, and solar contractor exam path. This package brings together the important safety, mechanical, fuel gas, plumbing, refrigeration, boiler, duct sizing, and solar thermal references used to support preparation for Arizona’s C-79 commercial classification.

The C-79 classification is focused on commercial air conditioning and refrigeration work, including solar equipment. Candidates preparing for this exam should be ready to review commercial HVAC systems, refrigeration systems, evaporative cooling, heating systems, fuel gas piping, water piping, steam and hot water systems, chilled and condensing water, ventilation, ductwork, controls, motors, testing, balancing, inspection, sizing, estimating, and solar water and pool heating principles. This book package supports that preparation with a focused set of references that help candidates study both trade knowledge and code-based material.

Because Arizona contractor exams use an open book format for approved references, candidates need more than the books themselves. They need to know how to use those books quickly. A strong study plan includes reading the references, learning the chapter layouts, reviewing indexes and tables, creating approved permanent tabs, highlighting useful material before exam day, and practicing timed lookup. The goal is to make the books familiar before testing so the exam process feels more organized and manageable.

This package is especially useful for commercial HVAC professionals, refrigeration technicians, solar thermal installers, mechanical contractors, service technicians, installers, and qualifying parties preparing for the Arizona C-79 exam. The references support preparation for both the general air conditioning and refrigeration portion and the solar-related portion of the classification.

Exam Details

The Arizona air conditioning and refrigeration, including solar contractor exam path includes an air conditioning and refrigeration trade examination and a solar examination. The air conditioning and refrigeration trade exam includes 80 questions, a 210-minute time limit, and a minimum passing score of 70%.

The air conditioning and refrigeration exam content outline includes refrigeration, air conditioning, warm air heating, controls and motors, boilers, ventilation, evaporative coolers, fuel piping systems, water piping systems, steam, hot, chilled, and condensing water, testing, balancing, inspection, sizing, and estimating. These areas give candidates a practical study map for organizing review time and deciding which references deserve the most attention.

The solar exam includes 30 questions and a 75-minute time limit. The solar content outline includes collection loops, components, installation, maintenance, mounting, principles, and solar systems piping. Candidates preparing for the C-79 classification should study solar thermal design and installation concepts in addition to the HVAC, refrigeration, fuel gas, mechanical, plumbing, and safety topics covered by the main trade exam.

The exam may include direct reference questions, practical trade questions, and questions that require the candidate to understand which book applies to the topic. For example, a fuel gas piping question may point toward the International Fuel Gas Code, while a ventilation or duct system question may point toward the International Mechanical Code. A solar piping or collector question may require review of solar water and pool heating material. OSHA questions focus on construction safety, hazard recognition, and safe jobsite practices.

Because the exams are timed, candidates should practice answering questions under realistic conditions. The strongest preparation includes learning the content, organizing the books, and practicing the skill of quickly locating information in the correct reference.

Open Book Test

The Arizona air conditioning and refrigeration, including solar contractor exam path uses approved references for open book testing. Candidates are responsible for bringing their own approved reference materials to the examination center and following the testing rules for book preparation and permitted materials.

For the air conditioning and refrigeration portion, the exam-room-approved references include Code of Federal Regulations - 29 CFR Part 1926 (OSHA), International Fuel Gas Code, 2018, International Mechanical Code, 2018, and International Plumbing Code, 2018. These references support safety, fuel gas, mechanical, plumbing, water piping, heating, ventilation, refrigeration, and related code questions.

Reference materials may be highlighted, underlined, annotated, and indexed before the exam session. Candidates may not write, highlight, underline, or index the references during the exam. Any book organization should be completed before test day.

References may be tabbed with permanent tabs only. Permanent tabs are tabs that would tear the page if removed. Temporary tabs, removable notes, sticky notes, and tabs that can be removed without tearing the page are not allowed. Candidates should prepare their references carefully so that tabs and markings comply with exam center rules.

A silent, nonprinting, non-programmable calculator may be used in the examination center. Candidates should also follow all current testing rules for check-in, identification, personal items, permitted materials, and conduct.

Several items in this package are study references rather than exam-room-approved references for the main trade exam. Modern Refrigeration and Air Conditioning, Low Pressure Boilers, Ductulator, and Solar Water and Pool Heating Design and Installation Manual help strengthen technical preparation and subject understanding. Candidates should separate officially approved exam-room references from supplemental study materials when preparing for exam day.

Licensing Steps

Arizona contractor licensing is handled through the Arizona Registrar of Contractors. A candidate pursuing the Arizona Air Conditioning and Refrigeration, Including Solar Commercial Contractor (C-79) license should begin by confirming that the C-79 commercial classification matches the work the business intends to perform.

After confirming the correct classification, the candidate should review the required examination path. Arizona contractor licensing may include trade examination requirements, statutes and rules requirements, qualifying party requirements, experience requirements, bonding, business entity information, and application documentation. This exam book package supports preparation for the technical exam portion of the licensing process.

The qualifying party is responsible for demonstrating the knowledge and experience required for the classification. Candidates should prepare for the required exams using the approved references and supporting study materials included in this package. After preparation, the candidate can schedule the exam through the proper testing process and complete testing according to current examination procedures.

After examination requirements are completed, the applicant continues through the Arizona contractor license application process. This may include submitting the proper application, naming the qualifying party, satisfying experience requirements, obtaining the required bond, and meeting any other state licensing requirements that apply to the classification and business structure.

This book package does not replace the state application process. It supports the study portion of the licensing path by giving candidates the references needed to review commercial HVAC, refrigeration, solar, fuel gas, mechanical, plumbing, boiler, duct, and OSHA safety topics connected to the Arizona C-79 classification.

State Requirements

The Arizona Registrar of Contractors issues residential, commercial, and dual license classifications. The C-79 classification is a commercial air conditioning and refrigeration, including solar classification. Candidates preparing for this license should understand the commercial scope and the additional solar-related knowledge included with this classification.

The commercial air conditioning and refrigeration, including solar scope includes installation, alteration, and repair of refrigeration and evaporative cooling systems. It also includes heating systems of wet, dry, or radiant type; ventilation systems; ductwork; air filtering devices; water treatment devices; pneumatic or electrical controls; control piping; thermal and acoustical insulation of refrigerant pipes and ductwork; vibration isolation materials and devices; fuel piping; water and gas piping from the service connection to the equipment served; and testing and balancing of refrigerant, cooling, heating, and air handling systems.

The “including solar” portion adds preparation for solar-related equipment and systems connected to the classification. Candidates should review solar water and pool heating concepts, collection loops, system components, mounting, installation, maintenance, solar principles, and solar piping. This added subject area is one of the main differences between the standard air conditioning and refrigeration classification and the air conditioning and refrigeration including solar classification.

For study purposes, candidates should connect the license scope to the exam outlines. Refrigeration and air conditioning questions may involve equipment, system operation, components, code requirements, and practical installation knowledge. Fuel gas questions may involve gas piping, combustion air, venting, appliance installation, and pressure testing. Mechanical and plumbing questions may involve ventilation, duct systems, hydronic piping, water piping, drainage considerations, equipment installation, and system safety. Solar questions may involve collector placement, piping, components, system design, installation, mounting, and maintenance.

Reference Books

• Code of Federal Regulations - 29 CFR Part 1926 (OSHA)
  This construction safety reference supports preparation for OSHA-related exam content, including jobsite safety, hazard recognition, fall protection, ladders, scaffolds, personal protective equipment, tools, material handling, and safe construction practices.
• International Fuel Gas Code, 2018
  This fuel gas code reference supports study for gas piping, pipe sizing, combustion air, venting, appliance installation, pressure testing, clearances, gas-fired equipment, and safety requirements related to fuel gas systems.
• International Mechanical Code, 2018
  This mechanical code reference supports preparation for heating, ventilation, air conditioning, duct systems, exhaust systems, combustion air, refrigeration, hydronic piping, equipment installation, and mechanical system compliance.
• International Plumbing Code, 2018
  This plumbing code reference supports study for plumbing system requirements, water piping, drainage concepts, fixture connections, piping materials, system installation, and code provisions related to mechanical and solar thermal work.
• Modern Refrigeration and Air Conditioning, 22nd Edition
  This HVAC trade reference supports study of refrigeration and air conditioning principles, system components, compressors, condensers, evaporators, metering devices, controls, motors, heating, ventilation, electrical concepts, and practical service knowledge.
• Low Pressure Boilers, 5th Edition
  This boiler reference supports study of low pressure steam and hot water systems, boiler operation, safety devices, controls, piping, fittings, maintenance, combustion, and related heating system concepts.
• Ductulator
  This duct sizing tool supports practice with airflow, duct dimensions, friction rate, velocity, and practical HVAC sizing concepts used in duct design, estimating, inspection, and balancing preparation.
• Solar Water and Pool Heating Design and Installation Manual
  This solar thermal reference supports preparation for solar water heating and pool heating systems, including collectors, circulation loops, components, installation methods, mounting, maintenance, system principles, and solar piping concepts.

Exam Room Approved Books

• Code of Federal Regulations - 29 CFR Part 1926 (OSHA)
  This reference may be used in the exam room for construction safety questions when prepared according to testing center rules.
• International Fuel Gas Code, 2018
  This reference may be used in the exam room for fuel gas questions, including gas piping, combustion air, venting, appliance installation, and pressure testing.
• International Mechanical Code, 2018
  This reference may be used in the exam room for mechanical code questions, including HVAC equipment, ventilation, duct systems, refrigeration, hydronic piping, combustion air, and equipment installation requirements.
• International Plumbing Code, 2018
  This reference may be used in the exam room for plumbing code questions, including water piping, system installation, plumbing requirements, and related code provisions that support mechanical and solar thermal work.

Test Information and Study Materials

A strong study plan should begin with the exam outlines. Candidates should divide study time between the air conditioning and refrigeration topics and the solar topics. The main trade exam includes refrigeration, air conditioning, warm air heating, controls and motors, boilers, ventilation, evaporative coolers, fuel piping, water piping, steam and hot water systems, chilled and condensing water, testing, balancing, inspection, sizing, and estimating. The solar exam includes collection loops, components, installation, maintenance, mounting, principles, and solar systems piping.

When studying the International Mechanical Code, candidates should focus on general mechanical requirements, ventilation, exhaust systems, duct systems, combustion air, chimneys and vents, refrigeration, hydronic piping, and equipment installation. Candidates should practice using the index, definitions, chapter headings, and tables to locate information quickly.

When studying the International Fuel Gas Code, candidates should review gas piping systems, pipe sizing, appliance installation, venting, combustion air, pressure testing, shutoff valves, connectors, clearances, and safe fuel gas practices. Fuel gas questions often depend on equipment type, location, piping material, venting method, or system condition.

When studying the International Plumbing Code, candidates should focus on water piping, piping materials, system installation, general plumbing requirements, and sections that connect to mechanical and solar thermal systems. Plumbing code knowledge is especially useful for questions involving water movement, system connections, piping, and related installation requirements.

When studying OSHA, candidates should focus on safety rules that apply to commercial HVAC, refrigeration, and solar work. This may include ladders, scaffolds, fall protection, personal protective equipment, hazard communication, hand and power tools, material handling, electrical safety awareness, and general safe work practices.

Modern Refrigeration and Air Conditioning supports the technical side of preparation. Candidates should review refrigeration cycles, compressors, condensers, evaporators, metering devices, heat transfer, refrigerants, motors, electrical controls, heating, ventilation, and troubleshooting concepts. Low Pressure Boilers supports study of steam and hot water boiler systems, boiler safety, controls, fittings, valves, piping, combustion, and safe operation.

The Ductulator helps candidates practice duct sizing, airflow, friction rate, velocity, and distribution system concepts. Solar Water and Pool Heating Design and Installation Manual supports review of solar thermal system principles, collectors, loops, components, mounting, installation, maintenance, and piping. Candidates should practice connecting each question topic to the correct reference before looking for the answer.

How 1 Exam Prep Helps You Reach Your Goal

1 Exam Prep helps contractor candidates prepare with organized study guidance, trade-focused review, and exam preparation resources built around licensing exams. For the Arizona Air Conditioning and Refrigeration, Including Solar Commercial Contractor (C-79) exam, candidates need to understand commercial HVAC and refrigeration systems while also preparing for solar thermal system content.

This book package supports that preparation by giving candidates the references needed for structured study. The code books help candidates prepare for open book exam navigation. The trade references help reinforce the technical understanding behind refrigeration, air conditioning, heating, boilers, fuel gas, plumbing, water piping, duct sizing, testing, balancing, inspection, estimating, and solar water and pool heating systems.

1 Exam Prep focuses on practical preparation. Candidates should know where information is located, how the books are organized, and which reference applies to each subject. With consistent review, proper book organization, and practice-oriented study, candidates can approach the Arizona C-79 exam with a clearer strategy and stronger confidence.

The goal is preparation, not a guaranteed outcome. 1 Exam Prep supports students through organized reference use, trade-focused study, practice navigation, and confidence-building structure for the exam process.

FAQ Section

What books are included in this Arizona C-79 Exam Book Package?

This package includes Code of Federal Regulations - 29 CFR Part 1926 (OSHA), International Fuel Gas Code, 2018, International Mechanical Code, 2018, International Plumbing Code, 2018, Modern Refrigeration and Air Conditioning, 22nd Edition, Low Pressure Boilers, 5th Edition, Ductulator, and Solar Water and Pool Heating Design and Installation Manual.

Is the Arizona C-79 exam open book?

Yes. The Arizona air conditioning and refrigeration, including solar contractor exam path uses approved references for open book testing. Candidates must bring their own approved references and follow exam center rules for tabs, highlighting, annotations, and permitted materials.

How many questions are on the air conditioning and refrigeration exam?

The air conditioning and refrigeration trade exam includes 80 questions. The time allowed is 210 minutes, and the minimum passing score is 70%.

How many questions are on the solar exam?

The solar exam includes 30 questions and a 75-minute time limit. Solar topics include collection loops, components, installation, maintenance, mounting, principles, and solar systems piping.

Which books are approved for the exam room?

The exam-room-approved references for the air conditioning and refrigeration portion include Code of Federal Regulations - 29 CFR Part 1926 (OSHA), International Fuel Gas Code, 2018, International Mechanical Code, 2018, and International Plumbing Code, 2018.

Are Modern Refrigeration and Air Conditioning, Low Pressure Boilers, Ductulator, and the solar manual study references?

Yes. These materials help strengthen trade knowledge for refrigeration, HVAC systems, boilers, duct sizing, and solar thermal systems. Candidates should separate study references from the approved exam-room references when preparing for test day.

Can I mark my books before exam day?

Yes. References may be highlighted, underlined, annotated, and indexed before the exam session. Candidates may not write, highlight, underline, or index the books during the exam.

Who should use this Arizona C-79 Exam Book Package?

This package is intended for candidates preparing for the Arizona Air Conditioning and Refrigeration, Including Solar Commercial Contractor (C-79) exam and for professionals who want focused references for commercial HVAC, refrigeration, mechanical code, fuel gas, plumbing, boilers, ducts, OSHA safety, and solar thermal preparation.