The 1 Package: All-Inclusive Arizona Air Conditioning and Refrigeration, Including Solar Residential / Commercial Contractor (CR-79) Exam, Licensing & Business Setup Solution

Prepare for the Arizona Air Conditioning and Refrigeration, Including Solar Residential / Commercial Contractor CR-79 exam while building the licensing and business foundation needed to operate professionally. The 1 Package combines HVAC and refrigeration exam preparation, approved code books, supplemental technical study materials, contractor application assistance, business formation, EIN filing, and contractor compliance guidance in one organized solution.

This all-inclusive Arizona CR-79 contractor package is designed for experienced HVAC technicians, refrigeration professionals, mechanical supervisors, qualifying parties, service managers, project managers, and business owners pursuing residential and commercial air conditioning and refrigeration authority in Arizona.

The CR-79 classification combines the scopes permitted under Arizona’s commercial C-79 Air Conditioning and Refrigeration, Including Solar classification and residential R-39 Air Conditioning and Refrigeration, Including Solar classification. It supports qualifying work involving air conditioning, refrigeration, heating, ventilation, evaporative cooling, system controls, ductwork, equipment piping, and solar-related HVAC systems within the authorized scope.

Professional HVAC and refrigeration work requires an understanding of complete systems rather than isolated components. Contractors must be prepared to evaluate heat transfer, airflow, refrigerant circuits, combustion, hydronic systems, equipment controls, duct distribution, piping, ventilation, testing, balancing, and safe installation practices.

The preparation program addresses refrigeration, comfort air conditioning, warm-air heating, controls and motors, boilers, ventilation, evaporative cooling, fuel piping, water piping, steam and hydronic systems, testing, balancing, inspection, sizing, estimating, and OSHA construction safety.

The package includes 1 year of course access, allowing candidates to prepare around employment, active projects, service calls, and personal responsibilities. The course supports organized technical review, practice-oriented study, calculations, code navigation, and confidence-building preparation using the included reference materials.

The 1 Package also supports the licensing and business stages that follow exam preparation. Application Service helps organize the Arizona contractor licensing process. Business Formation establishes an LLC or corporation, EIN Filing supports professional business operations, and Contractor Compliance Guidance helps customers understand responsibilities associated with maintaining an Arizona residential and commercial HVAC and refrigeration business.

Exam Details

The Arizona R-39/C-79 examination path is administered through PSI for the Arizona Registrar of Contractors. The trade examination is used for the residential R-39, commercial C-79, and dual CR-79 Air Conditioning and Refrigeration, Including Solar classifications.

The qualifying party is the individual whose experience, knowledge, and examination qualifications support the contractor license. This person must satisfy the applicable Arizona requirements and remain associated with the licensed business in the qualifying capacity recognized by the state.

The main air conditioning and refrigeration examination contains 80 questions. Candidates are given 210 minutes and must earn a minimum passing score of 70 percent.

The trade examination covers refrigeration, air conditioning, warm-air heating, controls and motors, boilers, ventilation, evaporative coolers, fuel piping systems, water piping systems, steam and hydronic water systems, testing, balancing, inspections, sizing, and estimating.

The solar portion contains 30 questions. Candidates are given 75 minutes and must earn a minimum passing score of 70 percent. Solar preparation may involve collection loops, system components, installation, maintenance, mounting, operating principles, and solar-system piping.

Refrigeration preparation may include the refrigeration cycle, compressors, condensers, evaporators, metering devices, refrigerants, pressure and temperature relationships, piping, accessories, controls, troubleshooting, evacuation, charging, and system testing.

Air-conditioning study may involve comfort systems, equipment selection, airflow, coils, condensate disposal, duct distribution, filtration, ventilation, humidity, controls, and system performance. Candidates should understand how equipment capacity and airflow affect comfort and operation.

Warm-air heating preparation may include furnaces, burners, heat exchangers, combustion air, blower systems, supply and return air, filters, controls, fuel-gas piping, venting, and equipment clearances.

Boiler preparation may include steam and hot water systems, burners, safety devices, low-water cutoffs, relief valves, pressure and temperature controls, expansion tanks, circulating pumps, piping, and system operation.

Controls and motors preparation may involve thermostats, relays, contactors, transformers, capacitors, motor principles, sequence of operation, control circuits, protective devices, and troubleshooting. Candidates should understand how controls coordinate equipment operation and protect system components.

Testing and balancing preparation may include airflow, temperature measurements, pressure readings, refrigerant-system evaluation, water flow, equipment operation, duct balancing, system startup, and inspection procedures.

Passing the required examination components does not automatically issue the CR-79 contractor license. The Arizona Registrar of Contractors must review and approve the complete application before the business may perform regulated work under the classification.

Open Book Test

The Arizona CR-79 air conditioning and refrigeration trade examination is an open-book test using approved reference materials. Candidates may consult permitted books during the examination under PSI’s current rules regarding editions, highlighting, annotations, indexing, permanent tabs, attachments, and book inspection.

An open-book format does not eliminate the need for technical preparation. Candidates must recognize the subject of each question, choose the appropriate reference, locate the relevant requirement, interpret the language, and apply it to the HVAC or refrigeration condition presented.

All books are highlighted and Tabbed. Highlighting draws attention to important safety standards, mechanical requirements, fuel-gas provisions, plumbing rules, formulas, diagrams, system components, and technical procedures. Tabs help candidates move among major chapters and commonly researched subjects more efficiently.

The prepared references should be used throughout the course. Repeated navigation practice helps candidates become familiar with indexes, definitions, code tables, exceptions, diagrams, and permanent tab locations before examination day.

A question involving furnaces, fuel-gas piping, appliance connections, combustion air, gas pressure, or venting may require the International Fuel Gas Code. Questions involving HVAC equipment, refrigeration systems, ventilation, ducts, hydronic systems, and mechanical installation may require the International Mechanical Code.

Questions involving water piping, drainage, condensate, traps, equipment connections, or plumbing materials may require the International Plumbing Code. Construction-site safety, ladders, fall protection, electrical hazards, tools, and personal protective equipment may require OSHA.

Modern Refrigeration and Air Conditioning, Low Pressure Boilers, and the Ductulator are supplemental preparation resources. They support technical review, calculations, equipment knowledge, airflow, system operation, troubleshooting, and boiler preparation, but they are not identified as approved exam-room references for the main trade examination.

Approved references remain subject to inspection. Loose pages, temporary tabs, removable notes, unauthorized attachments, and electronic materials are not permitted. Candidates may use a basic, silent, nonprinting, nonprogrammable, nonscientific calculator under the current testing rules.

Licensing Steps

1. Confirm the CR-79 classification. Review the residential and commercial air conditioning, refrigeration, heating, ventilation, and solar scope to make sure it matches the services the business plans to offer.
2. Select the qualifying party. Identify the individual who will satisfy the applicable HVAC and refrigeration experience and examination requirements.
3. Review the required exams. Determine the trade, solar, and Arizona Statutes and Rules requirements that apply to the proposed qualifying party.
4. Prepare for the examinations. Use the included course, highlighted and tabbed references, technical study materials, calculations, and practice-oriented preparation.
5. Complete the trade examination. Pass the R-39/C-79 air conditioning and refrigeration examination unless an authorized waiver applies.
6. Complete the solar requirement. Pass the applicable solar examination connected with the classification unless an authorized waiver applies.
7. Complete Arizona’s Statutes and Rules requirement. Finish the state requirement unless the Arizona Registrar of Contractors approves an authorized waiver.
8. Form the business entity. Use the included Business Formation service to establish an LLC or corporation for the HVAC and refrigeration business.
9. Obtain an EIN. Complete the included EIN Filing with the IRS for business banking, taxation, payroll, employee hiring, and professional operations.
10. Complete applicable background requirements. Follow Arizona’s process for the individuals required to appear on the contractor application.
11. Prepare the solar warranty documentation. Include the warranty materials required for an Arizona classification containing a solar component.
12. Prepare the contractor application. Organize qualifying-party records, experience documentation, examination results, business documents, and required disclosures.
13. Obtain the contractor license bond. Arrange the bond required for the dual classification and anticipated annual gross volume of work.
14. Address residential financial protection. Complete the applicable Residential Contractors’ Recovery Fund requirement or authorized alternative.
15. Submit the application. Provide the completed application and supporting documentation to the Arizona Registrar of Contractors.
16. Wait for license issuance. Do not advertise, contract for, or perform work requiring the CR-79 license until Arizona approves the application and issues an active contractor license.

State Requirements

The CR-79 classification is an Arizona dual specialty contractor license combining the commercial C-79 and residential R-39 Air Conditioning and Refrigeration, Including Solar scopes.

The commercial scope includes qualifying installation, alteration, and repair of refrigeration and evaporative-cooling systems. It also includes wet, dry, and radiant heating systems, ventilation, ductwork, filtering devices, water-treatment devices, controls, control piping, insulation, vibration isolation, equipment-related fuel and water piping, and system testing and balancing.

The residential scope includes qualifying installation and repair of comfort air-conditioning systems, refrigeration, evaporative cooling, ventilation, heating, related machinery, units, accessories, refrigerated spaces, and controls.

When necessary for covered work, a new circuit may be added to an existing service panel or subpanel. Installation of a new service panel or subpanel is excluded from the classification scope.

The proposed qualifying party must demonstrate the experience, knowledge, and skills needed to supervise or perform work covered by the license. Experience documentation may need to describe HVAC installations, refrigeration, heating, ventilation, boilers, controls, piping, system testing, service work, and supervision.

The legal business entity applying for the license must be properly formed and identified. The company name, ownership records, qualifying-party information, EIN documents, contractor bond, and application should remain consistent throughout the licensing process.

Because CR-79 includes solar authority, solar warranty documentation is required as part of the license application. This documentation is separate from the examination requirements.

A contractor license bond is required. As a dual classification, CR-79 is subject to the applicable residential and commercial bonding requirements based on the anticipated gross volume of work.

The residential portion of the license is also subject to Arizona’s residential financial-protection requirements. The applicant must satisfy the applicable Residential Contractors’ Recovery Fund obligation or authorized alternative.

Reference Books

• Included Book: Code of Federal Regulations – 29 CFR Part 1926 (OSHA)
  This construction-safety reference covers personal protective equipment, ladders, fall protection, electrical hazards, tools, welding, material handling, housekeeping, and general jobsite responsibilities.
• Included Book: International Fuel Gas Code, 2018
  This code addresses fuel-gas piping, sizing, materials, appliance connections, shutoff valves, combustion air, pressure testing, equipment installation, and venting.
• Included Book: International Mechanical Code, 2018
  This mechanical code supports study of air conditioning, refrigeration, heating, ventilation, ducts, boilers, hydronic systems, equipment access, controls, and installation requirements.
• Included Book: International Plumbing Code, 2018
  This code covers water piping, drainage, traps, condensate disposal, piping materials, supports, equipment connections, testing, and plumbing requirements affecting mechanical systems.
• Included Book: Modern Refrigeration and Air Conditioning, 22nd Edition
  This technical reference supports study of refrigeration cycles, compressors, condensers, evaporators, metering devices, refrigerants, air conditioning, heating, airflow, controls, troubleshooting, and equipment service.
• Included Book: Low Pressure Boilers, 5th Edition
  This reference covers steam and hot water boiler systems, components, burners, controls, safety devices, piping, operation, maintenance, inspection, and troubleshooting.
• Included Study Tool: Ductulator
  This HVAC calculation tool supports practice with airflow, duct dimensions, friction rate, velocity, and air-distribution sizing concepts.

All books are highlighted and Tabbed. The prepared format supports organized study and faster navigation through the HVAC, refrigeration, mechanical, fuel-gas, plumbing, boiler, airflow, and safety material.

The package includes a $550 refundable book deposit. The deposit is refundable when the books are returned within one year in similar condition.

Please allow up to 15 business days for The 1 Package book orders.

Exam Room Approved Books

The approved exam-room references for the Arizona R-39/C-79 air conditioning and refrigeration trade examination include:

• 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, Low Pressure Boilers, and the Ductulator are included as supplemental study resources. They should not be taken into the examination room unless the current testing instructions specifically authorize them.

Candidates should bring only permitted references in the correct editions. All highlighting, notes, indexing, and permanent tabs remain subject to inspection by the examination provider.

Test Information and Study Materials

Effective CR-79 preparation should combine refrigeration theory, air conditioning, warm-air heating, boilers, ventilation, evaporative cooling, controls, motors, piping, airflow, testing, balancing, estimating, and OSHA safety.

Refrigeration study may include pressure-temperature relationships, superheat, subcooling, compressors, condensers, evaporators, metering devices, piping, accessories, refrigerant handling, evacuation, charging, and troubleshooting.

Airflow preparation may include duct dimensions, friction loss, velocity, supply and return air, fittings, registers, grilles, balancing, fan performance, filtration, and equipment airflow requirements. The Ductulator supports repeated airflow and duct-sizing practice.

Heating preparation may include furnaces, boilers, burners, combustion air, venting, steam systems, hot water systems, circulation, expansion, controls, and safety devices.

Calculation practice may involve airflow, duct sizing, heat transfer, temperature change, system capacity, refrigerant conditions, fuel-gas sizing, water piping, equipment loads, and estimating.

Solar-related study may include collection loops, system components, mounting, piping, controls, installation, maintenance, and operating principles associated with solar HVAC systems.

Safety preparation should address ladders, roof access, electrical hazards, refrigerants, pressurized systems, combustion, welding, lifting, power tools, personal protective equipment, and equipment startup procedures.

How 1 Exam Prep Helps You Reach Your Goal

1 Exam Prep supports Arizona CR-79 candidates through organized study guidance, trade-focused review, practice-oriented preparation, reference navigation, and confidence-building study structure.

The course divides the broad examination into manageable subjects, including refrigeration, air conditioning, warm-air heating, boilers, controls, motors, ventilation, evaporative cooling, fuel piping, water piping, testing, balancing, sizing, estimating, and solar-related systems.

Practice-oriented preparation helps candidates apply technical information rather than relying only on reading. Reference-navigation exercises support faster identification of the correct code, chapter, table, formula, system component, or safety requirement.

The highlighted and tabbed books support efficient navigation, but regular use remains essential. Repeated practice helps candidates become familiar with each reference and reduces unnecessary searching during the examination.

Application Service supports the Arizona licensing stage by helping organize qualifying-party information, examination records, business documents, and required application materials. Business Formation establishes an LLC or corporation so the customer has a legally structured business entity.

EIN Filing with the IRS provides the federal identification number used to open business bank accounts, manage taxes properly, hire employees, and operate professionally. Contractor Compliance Guidance supports a clearer understanding of responsibilities associated with maintaining an Arizona residential and commercial contractor license.

No preparation program or business service can guarantee an examination result, licensing approval, earnings, or business success. The package provides the books, course access, application assistance, and business setup services needed to pursue the Arizona CR-79 licensing path with stronger organization and confidence.

What is included in The 1 Package?

The package includes four approved exam-room code books, two supplemental technical books, a Ductulator, 1 year of course access, Application Service, business formation, EIN Filing, and Contractor Compliance Guidance.

What is the total cost?

The package cost is $2,665. A $550 refundable book deposit brings the total due to $3,215. The package is all-inclusive with no hidden fees.

How does the refundable book deposit work?

The $550 deposit is refundable when the books are returned within one year in similar condition.

Are all books highlighted and tabbed?

Yes. All books are highlighted and Tabbed to support organized study and faster reference navigation.

How long should I allow for the book order?

Please allow up to 15 business days for The 1 Package book orders.

How many questions are on the main CR-79 trade exam?

The main air conditioning and refrigeration examination contains 80 questions. Candidates have 210 minutes and must earn a minimum passing score of 70 percent.

Is there a separate solar examination?

Yes. The solar portion contains 30 questions, allows 75 minutes, and requires a minimum passing score of 70 percent.

Is the Arizona CR-79 exam open book?

Yes. The main trade examination is open book using approved references under PSI’s current testing rules.

Does CR-79 cover residential and commercial HVAC work?

Yes. CR-79 combines the authorized commercial C-79 and residential R-39 Air Conditioning and Refrigeration, Including Solar scopes.

Does the package include licensing and business setup?

Yes. The package includes Application Service, LLC or corporation formation, EIN Filing with the IRS, and Contractor Compliance Guidance.

Does passing the exams automatically issue the license?

No. The Arizona Registrar of Contractors must review and approve the complete application before issuing the CR-79 contractor license.