Arizona Air Conditioning and Refrigeration Commercial Contractor (C-39) - Books & Courses Rental Package

The Arizona Air Conditioning and Refrigeration Commercial Contractor (C-39) - Books & Courses Rental Package is designed for contractors preparing for the Arizona C-39 commercial air conditioning and refrigeration trade exam. This rental package combines the listed reference books and Ductulator with structured course access so candidates can study commercial HVAC systems, refrigeration, warm air heating, ventilation, fuel gas, mechanical code, duct design, airflow, boiler concepts, OSHA construction safety, and exam-focused reference navigation with a clear preparation plan.

The Arizona C-39 classification is a commercial contractor classification connected to air conditioning and refrigeration work. Candidates preparing for this classification should be ready to review refrigeration systems, evaporative cooling, heating systems, ventilation systems, duct work, air filtering devices, controls, motors, fuel piping, water piping, boilers, testing, balancing, inspections, sizing, estimating, and safe work practices. Because this exam is open book, preparation should include both trade knowledge and the ability to locate information quickly in the approved references.

This rental package includes Code of Federal Regulations - 29 CFR Part 1926 (OSHA), International Fuel Gas Code, 2018, International Mechanical Code, 2018, Modern Refrigeration and Air Conditioning, 22nd edition, Low Pressure Boilers 5th Edition, Manual D, 2016, 3rd Ed, and Ductulator. These materials support preparation for construction safety, fuel gas systems, mechanical systems, refrigeration principles, air conditioning systems, warm air heating, boiler fundamentals, duct design, airflow sizing, ventilation, equipment installation, inspections, and system performance topics.

The rental price is $1,240, plus a $550 refundable deposit, for a total of $1,790. This rental option is built for candidates who want access to the listed exam preparation materials and course support without purchasing a permanent book set. The package also includes 6 months of course access, giving candidates time to review course material, practice reference navigation, and build a stronger study routine before test day.

Open book contractor exams require more than simply bringing books into the examination center. Candidates need to understand how each reference is organized, how to use indexes and tables, where major subjects are located, and how to connect exam questions to the correct book quickly. This package supports that process by pairing the listed rental materials with course access designed to help candidates prepare with structure, repetition, and confidence.

Commercial air conditioning and refrigeration preparation should include both practical field knowledge and code-based study. Candidates should review refrigeration cycles, cooling systems, evaporative cooling, warm air heating, ventilation, air distribution, duct sizing, fuel gas safety, equipment controls, motors, boilers, testing, balancing, inspections, sizing, and estimating. The combination of code books, trade references, Manual D, and Ductulator gives candidates a broad set of tools for studying the exam content.

Exam Details

The Arizona C-39 Air Conditioning and Refrigeration trade exam contains 80 questions. Candidates are allowed 210 minutes to complete the exam, and the minimum passing score is 70%. The exam may include questions based on approved reference materials, trade knowledge, and general industry practices related to commercial HVAC and refrigeration work.

The 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, inspections, sizing, and estimating. These areas reflect the technical knowledge expected of a commercial contractor working with air conditioning and refrigeration systems in Arizona.

Refrigeration and air conditioning are major study areas. Candidates should review system components, operating principles, equipment installation, piping concepts, refrigerant-related trade knowledge, airflow, controls, service practices, and code requirements. Modern Refrigeration and Air Conditioning, 22nd edition supports this preparation by helping candidates review HVAC and refrigeration fundamentals, equipment components, system operation, and service concepts.

Warm air heating, fuel piping, boilers, controls, motors, and ventilation should also be part of the study plan. The International Fuel Gas Code supports questions involving gas piping, gas appliances, combustion air, venting, appliance connections, and fuel gas safety. The International Mechanical Code supports preparation for mechanical systems, ventilation, ducts, exhaust systems, refrigeration, boilers, hydronic piping, equipment installation, and inspection-related provisions.

Duct design and airflow topics are important for HVAC preparation. Manual D, 2016, 3rd Ed and the Ductulator support study of duct layout, duct sizing, airflow movement, friction loss, air distribution, and system performance. Candidates should practice using these materials so sizing and estimating questions feel more familiar during the exam.

Candidates may use a silent, nonprinting, non-programmable calculator in the examination center. Practicing sizing, estimating, airflow review, and system-related calculations with a basic calculator and Ductulator can help make the exam-day process more efficient.

Open Book Test

The Arizona Air Conditioning and Refrigeration Commercial Contractor exam is an open book test using approved references. Candidates are responsible for bringing their own approved reference materials to the examination center and preparing those books according to the testing rules before exam day.

Open book testing rewards preparation, organization, and book familiarity. Candidates should not wait until the exam begins to learn the references. A stronger approach is to study the table of contents, indexes, definitions, tables, chapter organization, and commonly used sections before test day. The more familiar the books become during practice, the more useful they are under timed testing conditions.

Approved references may be highlighted, underlined, annotated, and indexed before the examination session. Candidates may not write, highlight, underline, or index their references during the exam. Additional loose papers or attached papers are not permitted with approved references. Permanent tabs are allowed, while temporary removable tabs are not allowed.

The books should be organized before test day according to testing rules. Fuel gas questions may require the International Fuel Gas Code, mechanical system questions may require the International Mechanical Code, safety questions may require OSHA 29 CFR Part 1926, refrigeration questions may require Modern Refrigeration and Air Conditioning, boiler-related questions may require Low Pressure Boilers 5th Edition, and duct sizing questions may require Manual D or Ductulator.

An open book exam is still timed. With 80 questions and multiple subject areas, candidates need to work steadily and avoid spending too much time searching for one answer. Practice with the approved references helps improve pacing, reduce stress, and build a stronger exam strategy.

Licensing Steps

Arizona contractor licensing is handled by the Arizona Registrar of Contractors. Candidates pursuing the Arizona Air Conditioning and Refrigeration Commercial Contractor (C-39) classification should follow the official Arizona Registrar of Contractors licensing process for current application requirements, classification rules, examination instructions, forms, and supporting documentation.

A typical preparation path begins by confirming that the C-39 commercial classification matches the work the candidate intends to perform. Since C-39 is a commercial classification, it is intended for contractors seeking coverage for commercial air conditioning and refrigeration work within the allowed scope of the classification.

After confirming the classification, candidates should prepare for the required examination process, study the approved references, complete the testing requirements, and submit licensing materials according to Arizona Registrar of Contractors instructions. Contractor licensing may involve more than the trade exam, including requirements related to a qualifying party, experience, business structure, bonds, background checks, financial information, statutes and rules, and application documentation.

This Books & Courses Rental Package supports the exam preparation portion of the licensing journey. It does not replace the official application, state review, or approval process. The package is intended to help candidates study for the C-39 exam using the listed rental books, Ductulator, and organized course access.

State Requirements

Arizona issues contractor licenses by classification, and each classification defines the type of work a licensee is permitted to perform. The C-39 Air Conditioning and Refrigeration Commercial Contractor classification is connected to commercial HVAC and refrigeration work within the allowed scope. Candidates should make sure this classification matches the commercial work they intend to contract for in Arizona.

The commercial scope includes installation, alteration, and repair of refrigeration and evaporative cooling systems, heating systems, ventilation systems, duct work, 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, liquid fuel piping and tanks, and water and gas piping from the service connection to the equipment served.

The classification also includes testing and balancing of refrigerant, cooling, heating circuits, and air handling systems within the allowed scope. If necessary, a new circuit may be added to an existing service panel or sub-panel, while installation of a new service panel or sub-panel is excluded.

Choosing the correct classification matters because commercial, residential, and dual residential/commercial licenses are treated differently in Arizona. Candidates who plan to perform residential work, solar-related work, or both residential and commercial work should review the appropriate Arizona classifications before applying.

Reference Books

• Included Rental Book: Code of Federal Regulations - 29 CFR Part 1926 (OSHA)
  This construction safety reference covers OSHA standards for construction work. For the Arizona C-39 exam, it supports review of jobsite safety, hazard recognition, personal protective equipment, access equipment, ladders, scaffolds, fall protection, material handling, and safe work practices connected to HVAC and refrigeration work.
• Included Rental Book: International Fuel Gas Code, 2018
  This code reference covers fuel gas systems, gas piping, appliance connections, combustion air, venting, and related requirements. It is an important reference for gas-fired heating equipment, fuel piping systems, appliance installation, and fuel gas safety topics.
• Included Rental Book: International Mechanical Code, 2018
  This mechanical code reference covers mechanical systems, ventilation, ducts, exhaust systems, boilers, refrigeration, hydronic piping, equipment installation, and inspection-related provisions. It is a core reference for air conditioning, refrigeration, heating, ventilation, and mechanical system preparation.
• Included Rental Book: Modern Refrigeration and Air Conditioning, 22nd edition
  This HVAC and refrigeration reference supports review of refrigeration principles, air conditioning systems, equipment components, controls, motors, heating systems, troubleshooting concepts, service practices, and system operation.
• Included Rental Book: Low Pressure Boilers 5th Edition
  This boiler reference supports review of low pressure boiler principles, boiler components, controls, fittings, safe operation, maintenance concepts, and boiler system knowledge connected to heating and mechanical preparation.
• Included Rental Book: Manual D, 2016, 3rd Ed
  This duct design reference supports review of duct system layout, duct sizing, fittings, airflow, friction loss, pressure relationships, and air distribution design concepts.
• Included Rental Tool: Ductulator
  This duct sizing tool supports review of airflow, duct sizing, friction loss, and ventilation-related calculations. It is useful for candidates preparing for sizing, estimating, duct, and airflow-related exam topics.

Exam Room Approved Books

The following reference materials are included with this rental package and are used for the Arizona C-39 Air Conditioning and Refrigeration Commercial Contractor exam preparation:

• Code of Federal Regulations - 29 CFR Part 1926 (OSHA)
  Approved construction safety reference for OSHA standards used in the exam.
• International Fuel Gas Code, 2018
  Approved fuel gas code reference for gas piping, appliances, combustion air, venting, and fuel gas system questions.
• International Mechanical Code, 2018
  Approved mechanical code reference for HVAC, refrigeration, ventilation, ducts, boilers, hydronic systems, and related mechanical code questions.
• Modern Refrigeration and Air Conditioning, 22nd edition
  Approved HVAC and refrigeration reference for refrigeration, air conditioning, heating, controls, motors, components, service, and system operation topics.
• Low Pressure Boilers 5th Edition
  Approved boiler reference for low pressure boiler operation, controls, fittings, components, safety, and maintenance-related topics.
• Manual D, 2016, 3rd Ed
  Approved duct design reference for duct layout, sizing, fittings, airflow, and air distribution topics.
• Ductulator
  Approved duct sizing tool for airflow, duct sizing, and related sizing and estimating preparation.

Candidates should prepare their exam room approved books before the examination date. Approved references may be highlighted, underlined, annotated, and indexed before the exam. Permanent tabs may be used. Temporary removable tabs, loose notes, and additional papers are not permitted.

Test Information and Study Materials

The Arizona C-39 content outline gives candidates a strong study roadmap. The exam includes 12 items on refrigeration, 12 items on air conditioning, 12 items on warm air heating, 8 items on controls and motors, 4 items on boilers, 4 items on ventilation, 4 items on evaporative coolers, 5 items on fuel piping systems, 5 items on water piping systems, 5 items on steam, hot, chilled, and condensing water, 5 items on testing, balancing, and inspections, and 4 items on sizing and estimating.

Refrigeration review should include system operation, major components, installation practices, piping concepts, controls, safety, and code-related material. Air conditioning review should include commercial cooling systems, equipment installation, airflow, duct relationships, cooling performance, ventilation, system operation, and troubleshooting concepts.

Warm air heating should be studied with fuel gas and mechanical code requirements in mind. Candidates should review gas-fired equipment, combustion air, venting, appliance connections, heating system components, and installation requirements. The International Fuel Gas Code is especially useful for fuel piping systems, gas appliances, and fuel gas safety.

Controls and motors are also important. Candidates should understand basic motor operation, control devices, equipment controls, safety controls, and the way controls interact with air conditioning, refrigeration, heating, and ventilation systems. Commercial HVAC contractors should be familiar with equipment-related control concepts within the limits of the classification.

Duct design and ventilation should receive focused study time. Manual D supports duct design preparation, while the Ductulator supports airflow and duct sizing practice. Candidates should understand how duct sizing, airflow, friction loss, air distribution, and system performance relate to cooling, heating, and ventilation work.

Boilers, water piping, hydronic systems, and inspection-related topics should also be included in the study plan. These subjects may require candidates to apply both practical trade knowledge and code navigation skills. The International Mechanical Code and Low Pressure Boilers 5th Edition can be useful when reviewing heating, boiler, hydronic, mechanical equipment, and inspection-related topics.

Testing, balancing, and inspections should not be overlooked. Commercial HVAC and refrigeration work depends on safe installation, proper system operation, airflow, refrigerant performance, piping integrity, equipment performance, and compliance with applicable requirements. Candidates should understand the purpose of testing and balancing and how inspection requirements relate to safe and effective system operation.

Because the exam is open book, candidates should practice using the books while studying. A productive routine includes reviewing course material, reading relevant reference sections, practicing with the books, and timing yourself. The goal is to identify what a question is asking, select the correct reference, and locate the answer efficiently.

Before test day, candidates should organize their references according to the testing rules. Highlighting, underlining, annotations, indexing, and permanent tabs should be completed before the exam. Practicing with the same organized references used on test day can help reduce stress and improve pacing.

How 1 Exam Prep Helps You Reach Your Goal

1 Exam Prep helps Arizona C-39 candidates prepare with organized study guidance, trade-focused review, practice-oriented preparation, and reference navigation support. This package gives candidates a structured way to study the listed books and course material instead of trying to prepare without direction.

The Books & Courses Rental Package includes the listed rental references, Ductulator, and 6 months of course access. The course helps candidates focus on major exam areas, including refrigeration, air conditioning, warm air heating, controls and motors, boilers, ventilation, evaporative cooling, fuel gas, mechanical code, water piping, testing, balancing, inspections, sizing, estimating, OSHA safety, Manual D duct design, and Ductulator practice.

For an open book contractor exam, preparation should include both knowledge and navigation. Candidates need to understand the trade topics, but they also need to know where to find information quickly in the books. 1 Exam Prep supports students by helping them become more familiar with book organization, code layout, key sections, and subject areas that matter for the exam.

This approach can be especially helpful for experienced HVAC professionals who already know the work but need a more exam-focused study structure. Field experience is valuable, but contractor exams often require candidates to answer questions in a specific format and use reference materials efficiently under time limits.

The goal is practical preparation. 1 Exam Prep does not guarantee passing, licensing approval, state acceptance, or specific exam outcomes. Instead, this rental package provides tools to help candidates study more effectively, organize their references, review important trade topics, and approach the Arizona C-39 exam with greater confidence.

FAQ Section

What is included in the Arizona C-39 Books & Courses Rental Package?

This package includes rental access to Code of Federal Regulations - 29 CFR Part 1926 (OSHA), International Fuel Gas Code, 2018, International Mechanical Code, 2018, Modern Refrigeration and Air Conditioning, 22nd edition, Low Pressure Boilers 5th Edition, Manual D, 2016, 3rd Ed, and Ductulator. It also includes 6 months of course access.

How much does the Arizona C-39 rental package cost?

The rental price is $1,240 plus a $550 refundable deposit, for a total of $1,790.

Is the Arizona C-39 exam open book?

Yes. The Arizona Air Conditioning and Refrigeration Commercial Contractor exam is an open book test using approved references. Candidates are responsible for bringing their own approved books to the examination center.

How many questions are on the Arizona C-39 exam?

The Arizona C-39 Air Conditioning and Refrigeration trade exam contains 80 questions.

How much time is allowed for the Arizona C-39 exam?

Candidates are allowed 210 minutes to complete the Arizona C-39 Air Conditioning and Refrigeration trade exam.

What score is needed to pass the Arizona C-39 exam?

The minimum passing score is 70%.

Does this package include Manual D?

Yes. This rental package includes Manual D, 2016, 3rd Ed for duct design preparation.

Does this package include a Ductulator?

Yes. This package includes a Ductulator for duct sizing, airflow, and sizing-related practice.

Does this package include 6 months of course access?

Yes. This Books & Courses Rental Package includes 6 months of course access along with the listed rental reference books and Ductulator.

Can I write in my books during the exam?

No. Approved references may be highlighted, underlined, annotated, and indexed before the exam, but candidates may not write, highlight, underline, or index references during the examination session.

Are temporary tabs allowed on the exam books?

No. Temporary removable tabs are not allowed. Permanent tabs are allowed and should be applied before the exam session.

Does this package guarantee that I will pass the Arizona C-39 exam?

No. This package provides rental books, course access, Ductulator access, and structured study support, but exam results depend on each candidate’s preparation, experience, study habits, and performance on test day.