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

Prepare for the Arizona Air Conditioning and Refrigeration, Including Solar Commercial Contractor C-79 exam while building the licensing and business foundation needed to operate professionally. The 1 Package combines commercial HVAC, refrigeration, and solar-thermal exam preparation with highlighted and tabbed reference materials, contractor application assistance, business formation, EIN filing, and contractor compliance guidance.

This all-inclusive Arizona C-79 contractor package is designed for experienced air-conditioning technicians, refrigeration professionals, mechanical contractors, hydronic-system installers, solar water-heating specialists, qualifying parties, service supervisors, project managers, estimators, and business owners pursuing authority to perform qualifying commercial air conditioning and refrigeration work that includes solar applications.

The C-79 classification is an Arizona commercial specialty contractor license for Air Conditioning and Refrigeration, Including Solar. Candidates should prepare for a broad range of subjects involving refrigeration cycles, comfort cooling, heating, ventilation, fuel-gas equipment, plumbing connections, boilers, hydronic systems, motors, controls, ductwork, testing, troubleshooting, solar water heating, solar pool heating, estimating, and construction safety.

Professional commercial HVAC and refrigeration work requires an understanding of complete systems rather than isolated components. Contractors must evaluate equipment capacity, airflow, heat transfer, refrigerant circuits, combustion, hydronic piping, controls, ventilation, condensate disposal, duct distribution, equipment supports, and safe installation practices.

The solar portion of the classification adds preparation involving liquid-based solar-thermal systems. These systems may include collectors, storage tanks, heat exchangers, pumps, controllers, sensors, valves, expansion tanks, piping, insulation, heat-transfer fluids, freeze protection, pressure relief, roof mounting, and safe startup procedures.

The included International Mechanical Code, 2018 supports preparation involving air conditioning, refrigeration, ventilation, ducts, boilers, hydronic systems, equipment access, installation, testing, and inspections. The International Fuel Gas Code, 2018 supports study involving fuel-gas piping, appliance connections, combustion air, regulators, pressure testing, installation clearances, and venting.

The International Plumbing Code, 2018 supports preparation involving water supplies, drainage, traps, condensate disposal, piping materials, backflow protection, storage tanks, pressure relief, thermal expansion, equipment connections, and testing. OSHA 29 CFR Part 1926 supports safety preparation involving electrical hazards, ladders, roof access, fall protection, tools, material handling, personal protective equipment, and commercial construction operations.

Modern Refrigeration and Air Conditioning, 22nd Edition supports broad technical study involving refrigeration cycles, air conditioning, heating, electrical principles, motors, controls, airflow, installation, maintenance, and troubleshooting. Low Pressure Boilers, 5th Edition supports preparation involving steam and hot-water systems, controls, safety devices, piping, operation, inspection, and maintenance.

The included Ductulator supports practice involving duct dimensions, airflow, friction rate, and velocity. The Solar Water and Pool Heating Design and Installation Manual provides focused preparation involving collectors, storage, circulation, heat exchangers, controls, freeze protection, mounting, solar water heating, and solar pool-heating systems.

The package includes 1 year of course access, allowing candidates to prepare around service calls, active projects, employment, and personal responsibilities. The course supports organized trade review, reference navigation, HVAC calculations, solar-system preparation, duct-sizing practice, and confidence-building study.

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 banking and tax administration, and Contractor Compliance Guidance helps customers understand responsibilities associated with operating an Arizona commercial HVAC, refrigeration, and solar contracting business.

Exam Details

The Arizona Registrar of Contractors issues residential, commercial, and dual contractor licenses. The C-79 Air Conditioning and Refrigeration, Including Solar classification is a commercial specialty contractor license.

The qualifying party is the individual whose experience, trade 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.

C-79 preparation may include refrigeration, comfort cooling, heating, ventilation, fuel gas, mechanical equipment, plumbing connections, boilers, hydronic piping, controls, motors, duct systems, airflow, solar water heating, solar pool heating, estimating, testing, maintenance, troubleshooting, and OSHA safety.

Refrigeration preparation may involve the refrigeration cycle, compressors, condensers, evaporators, metering devices, refrigerants, pressure-temperature relationships, superheat, subcooling, piping, accessories, controls, evacuation, charging, leak testing, and troubleshooting.

Air-conditioning preparation may include equipment selection, airflow, cooling coils, condensate disposal, filters, humidity, ventilation, duct distribution, electrical controls, startup, and system performance. Candidates should understand how equipment capacity, airflow, load, and installation quality influence comfort and reliability.

Heating preparation may involve furnaces, burners, heat exchangers, blowers, filters, fuel-gas piping, combustion air, venting, clearances, controls, and protective devices.

Boiler and hydronic preparation may include steam and hot-water systems, pumps, circulators, expansion tanks, air separators, heat exchangers, valves, water treatment, temperature controls, pressure controls, relief valves, low-water cutoffs, system filling, purging, and maintenance.

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

Duct-system preparation may include airflow, friction loss, velocity, duct dimensions, supply air, return air, fittings, transitions, dampers, registers, grilles, balancing, filtration, leakage, insulation, and equipment airflow requirements.

Solar water-heating preparation may involve flat-plate collectors, evacuated-tube collectors, storage tanks, heat exchangers, pumps, controllers, sensors, valves, expansion tanks, piping, insulation, pressure relief, and heat-transfer fluids.

Candidates should understand direct and indirect solar-thermal systems, natural and pumped circulation, freeze protection, overheating, stagnation, collector orientation, tilt, shading, roof penetrations, structural support, system filling, startup, and maintenance.

Solar pool-heating preparation may include collector arrays, filters, pumps, valves, bypass arrangements, check valves, controls, sensors, roof mounting, piping layout, drainage, flow balancing, startup, and seasonal shutdown.

Plumbing-related preparation may involve water connections, valves, storage tanks, drains, traps, condensate disposal, backflow protection, piping materials, supports, pressure relief, thermal expansion, equipment connections, and testing.

Estimating preparation may include equipment quantities, duct materials, fittings, refrigerant piping, hydronic piping, controls, insulation, solar collectors, storage tanks, supports, labor, equipment, access, removal, disposal, and project scheduling.

OSHA preparation may involve electrical hazards, ladders, fall protection, roof access, tools, welding, brazing, refrigerant cylinders, material handling, personal protective equipment, housekeeping, and safe commercial construction-site practices.

Passing the applicable examination requirements does not automatically issue the C-79 contractor license. The Arizona Registrar of Contractors must review and approve the complete application before the business may advertise, bid, contract for, or perform work requiring the classification.

Open Book Test

The Arizona C-79 Air Conditioning and Refrigeration, Including Solar examination is an open-book test using approved reference materials. Candidates are responsible for bringing the materials permitted for the scheduled examination and following the testing provider’s current requirements for editions, highlighting, annotations, indexing, permanent tabs, attachments, and book inspection.

An open-book format does not eliminate the need for technical preparation. Candidates must identify the subject of each question, select the correct reference, locate the applicable provision, interpret the information, and apply it to the HVAC, refrigeration, boiler, duct, plumbing, or solar condition presented.

All books are highlighted and Tabbed. Highlighting draws attention to useful safety requirements, fuel-gas provisions, mechanical-code rules, plumbing requirements, refrigeration concepts, boiler systems, solar components, formulas, and installation details. Permanent tabs help candidates move efficiently among major chapters and frequently researched subjects.

The references should be used throughout the course rather than opened for the first time on examination day. Repeated navigation practice helps candidates become familiar with indexes, definitions, tables, diagrams, formulas, technical illustrations, and permanent tab locations.

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

Questions involving water supplies, storage tanks, drainage, traps, backflow protection, pressure relief, thermal expansion, or equipment connections may require the International Plumbing Code.

Modern Refrigeration and Air Conditioning supports broader technical preparation involving refrigeration, cooling, heating, airflow, electrical systems, motors, controls, installation, and troubleshooting. Low Pressure Boilers supports preparation involving boiler operation, controls, safety devices, water treatment, and maintenance.

The Solar Water and Pool Heating Design and Installation Manual supports questions involving collectors, storage, heat exchangers, pumps, controls, freeze protection, mounting, solar water heating, and pool-heating applications. The Ductulator supports quick practice involving duct dimensions, airflow, friction, and velocity.

Questions involving ladders, roof work, fall protection, tools, electrical hazards, lifting, welding, material handling, personal protective equipment, or construction safety may require OSHA 29 CFR Part 1926.

Candidates should bring only the references authorized for the examinations they schedule and follow all current testing-center rules regarding tabs, notes, calculators, loose materials, and book inspection.

Licensing Steps

1. Confirm the C-79 classification. Review the commercial air conditioning, refrigeration, and solar scope to make sure it matches the services the business intends to provide.
2. Select the qualifying party. Identify the individual who will satisfy the applicable HVAC, refrigeration, solar, experience, and examination requirements.
3. Review the examination requirements. Determine which trade, solar, and Arizona Statutes and Rules requirements apply to the proposed qualifying party.
4. Prepare for the required examinations. Use the included course, highlighted and tabbed references, HVAC calculations, duct-sizing practice, and solar-system review.
5. Complete the examination process. Pass the applicable trade and solar examination requirements and complete Arizona’s Statutes and Rules requirement unless an authorized waiver applies.
6. Prepare the solar warranty. Include the solar warranty documentation required for an Arizona license application involving a solar classification.
7. Form the business entity. Use the included Business Formation service to establish an LLC or corporation for the commercial HVAC, refrigeration, and solar business.
8. Obtain an EIN. Complete the included EIN Filing with the IRS for business banking, tax administration, payroll, hiring employees, and professional operations.
9. Complete applicable background requirements. Follow Arizona’s process for the individuals required to appear on the contractor license application.
10. Prepare the contractor application. Organize qualifying-party information, experience records, examination documentation, solar warranty materials, business documents, and required disclosures.
11. Obtain the commercial contractor license bond. Arrange the bond required for the commercial specialty classification and anticipated gross volume of work.
12. Submit the application. Provide the completed application and supporting materials to the Arizona Registrar of Contractors.
13. Wait for license issuance. Do not advertise, bid, contract for, or perform work requiring the C-79 license until Arizona approves the application and issues an active contractor license.

State Requirements

The C-79 classification is an Arizona commercial specialty contractor license for qualifying air conditioning and refrigeration work that includes solar applications. It does not provide residential contracting authority.

The proposed qualifying party must demonstrate the experience, knowledge, and skills necessary to supervise or perform the work covered by the classification. Experience documentation may need to describe air conditioning, refrigeration, heating, ventilation, ductwork, controls, boilers, hydronic systems, solar equipment, commercial projects, and field supervision.

The qualifying party must remain associated with the applicant business in the capacity recognized by the Arizona Registrar of Contractors. Experience records, examination information, and the individual’s business role should remain consistent throughout the application process.

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

Arizona contractor applicants must complete applicable background requirements and provide the identity, experience, examination, business, and disclosure information required for state review.

A commercial contractor license bond is required. The applicable bond amount depends on the anticipated gross volume of commercial work and the license category.

Arizona applications involving a solar classification require a copy of the contractor’s solar warranty. The warranty must address the solar installation in the manner required for the licensing process.

Because C-79 is a commercial-only classification, the residential financial-protection requirements associated with Arizona residential and dual contractor licenses do not apply.

Passing the required examination process is only one part of licensing. A person or company may not operate as a licensed C-79 contractor until the Arizona Registrar of Contractors approves the application and issues the active license.

After licensing, the contractor must remain within the authorized C-79 scope, maintain the required bond, renew the license, follow applicable solar-warranty responsibilities, and keep business and qualifying-party information current.

Reference Books

• Included Book: Code of Federal Regulations – 29 CFR Part 1926 (OSHA)
  Covers electrical hazards, ladders, roof access, fall protection, tools, welding, material handling, personal protective equipment, and commercial construction-site safety.
• Included Book: International Fuel Gas Code, 2018
  Addresses fuel-gas piping, sizing, materials, appliance connections, regulators, shutoff valves, pressure testing, combustion air, and venting.
• Included Book: International Mechanical Code, 2018
  Supports study of air conditioning, refrigeration, ventilation, ducts, boilers, hydronic systems, heating equipment, controls, access, testing, and installation.
• Included Book: International Plumbing Code, 2018
  Covers water supplies, piping materials, drainage, traps, backflow protection, storage tanks, pressure relief, thermal expansion, equipment connections, and testing.
• Included Book: Modern Refrigeration and Air Conditioning, 22nd Edition
  Supports technical preparation involving refrigeration cycles, air conditioning, heating, electrical principles, motors, controls, airflow, installation, maintenance, and troubleshooting.
• Included Book: Low Pressure Boilers, 5th Edition
  Covers steam and hot-water boilers, burners, controls, safety devices, pressure, temperature, piping, water treatment, operation, inspection, and maintenance.
• Included Study Tool: Ductulator
  Supports practice involving duct dimensions, airflow, friction rate, velocity, and common air-distribution sizing relationships.
• Included Book: Solar Water and Pool Heating Design and Installation Manual
  Supports study of collectors, storage tanks, heat exchangers, pumps, controls, valves, freeze protection, mounting, piping, solar water heating, and solar pool heating.

All books are highlighted and Tabbed.

The package includes a $600 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.

Test Information and Study Materials

Effective C-79 preparation should combine refrigeration, cooling, heating, ventilation, boilers, hydronic systems, controls, motors, plumbing connections, duct sizing, solar-thermal systems, estimating, and OSHA safety.

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

Air-conditioning and heating preparation may involve airflow, coils, condensate, filtration, humidity, equipment capacity, furnaces, combustion air, heat exchangers, controls, venting, and system performance.

Boiler and hydronic preparation may include pumps, expansion tanks, air removal, valves, controls, relief devices, water treatment, piping arrangements, startup, operation, and maintenance.

Solar study may include system types, collectors, storage, heat exchangers, pumps, controls, sensors, piping, insulation, heat-transfer fluids, freeze protection, overheating, mounting, startup, and pool-heating systems.

Duct practice may involve airflow, friction rate, velocity, dimensions, supply systems, return systems, fittings, balancing, leakage, and equipment airflow requirements.

Safety preparation should address electrical exposure, refrigerant cylinders, pressure systems, hot surfaces, roof access, fall protection, lifting, welding, brazing, tools, personal protective equipment, and equipment startup.

How 1 Exam Prep Helps You Reach Your Goal

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

The course divides the extensive preparation material into manageable subjects, including refrigeration, air conditioning, heating, boilers, hydronic systems, controls, motors, fuel gas, plumbing connections, ductwork, solar water heating, solar pool heating, and OSHA safety.

Reference-navigation exercises help candidates identify the correct book, locate useful index terms, find applicable tables and formulas, and interpret technical requirements. Practice-oriented preparation connects code provisions, calculations, and system concepts with realistic commercial installation conditions.

The highlighted and tabbed books support efficient navigation, but repeated use remains essential. Working with the references throughout the course helps candidates become familiar with their organization and reduces unnecessary searching during the examination.

Application Service supports the Arizona licensing stage by helping organize qualifying-party information, examination records, solar warranty materials, business documents, and required application components. Business Formation establishes an LLC or corporation so the customer has a legally structured commercial 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 the contractor license, bond, qualifying party, solar warranty, business records, and approved scope of work.

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

What is included in The 1 Package?

The package includes seven HVAC, refrigeration, boiler, plumbing, fuel-gas, solar, and safety books, a Ductulator, 1 year of course access, Application Service, LLC or corporation formation, EIN Filing with the IRS, and Contractor Compliance Guidance.

What is the total cost?

The package cost is $2,715. A $600 refundable book deposit brings the total due to $3,315. The package is all-inclusive with no hidden fees.

How does the refundable book deposit work?

The $600 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.

Is the Arizona C-79 examination open book?

Yes. The Arizona C-79 Air Conditioning and Refrigeration, Including Solar examination is open book using approved reference materials under the testing provider’s current rules.

Does C-79 cover residential HVAC work?

No. C-79 is a commercial Air Conditioning and Refrigeration, Including Solar classification. Residential work requires the appropriate residential or dual contractor license.

Does the package include solar preparation?

Yes. The package supports preparation involving solar water heating, solar pool heating, collectors, storage, heat exchangers, pumps, controls, piping, freeze protection, mounting, and system operation.

Does the package include boiler preparation?

Yes. Low Pressure Boilers, 5th Edition supports preparation involving steam and hot-water systems, controls, safety devices, piping, operation, inspection, and maintenance.

Does the package include duct-sizing preparation?

Yes. The included Ductulator supports practice involving duct dimensions, airflow, friction rate, velocity, and air-distribution sizing relationships.

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 examination automatically issue the license?

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