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Key Facts: AZ HVAC Exam

$66+$61

Total Exam Fees

AZ ROC

70%

Passing Score

AZ ROC

4 years

Experience Required

AZ ROC

$4,250+

Surety Bond (Residential)

AZ ROC

80 Q / 210 min

PSI Trade Exam Format

AZ ROC

100 Q

Practice Questions Available

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Sample AZ HVAC Practice Questions

Try these sample questions to review concepts for the AZ HVAC exam. Each question includes a detailed explanation. Start the interactive quiz above for the full 150+ question experience with AI tutoring.

1Which Arizona state agency administers HVAC contractor licensing?
A.Arizona Department of Environmental Quality
B.Arizona Registrar of Contractors (ROC)
C.Arizona Corporation Commission
D.Arizona Department of Revenue
Explanation: The Arizona Registrar of Contractors (ROC) administers all contractor licensing in Arizona, including HVAC licenses. The ROC oversees licensing, bonding, complaint resolution, and disciplinary actions for contractors.
2What are the three main HVAC license classifications offered by the Arizona ROC?
A.Class A, B, and C
B.R-39 (residential), C-39 (commercial), and CR-39 (dual)
C.Types I, II, and III
D.Gold, Silver, and Bronze
Explanation: Arizona offers three main HVAC license types: R-39 for residential air conditioning and refrigeration, C-39 for commercial, and CR-39 for both residential and commercial (dual). Each requires passing the trade exam and the AZ Statutes and Rules course.
3How many years of practical experience are required for an Arizona HVAC contractor license?
A.2 years
B.3 years
C.4 years
D.6 years
Explanation: Arizona requires at least 4 years of practical experience for an HVAC contractor license. Up to 2 years can come from a formal apprenticeship program, with the remaining years in hands-on installation, maintenance, or repair work.
4What is the Arizona trade exam fee paid to PSI?
A.$35
B.$54
C.$66
D.$100
Explanation: The Arizona trade-specific exam fee paid to PSI is $66. Additionally, the Arizona Statutes and Rules Training Course and Exam through GMetrix costs $54, for a total exam cost of $120.
5What is the minimum passing score for the Arizona ROC HVAC contractor exam?
A.60%
B.65%
C.70%
D.75%
Explanation: The minimum passing score for the Arizona ROC HVAC contractor trade exam is 70%. Both the trade exam and the Arizona Statutes and Rules exam must be passed to obtain licensure.
6What bond amount is required for a residential HVAC contractor (R-39) in Arizona with projected gross revenue under $375,000?
A.$2,500
B.$4,250
C.$7,500
D.$10,000
Explanation: Arizona residential specialty contractors (R-39) with expected gross revenue under $375,000 require a surety bond of $4,250. Those with revenue exceeding $375,000 require a $7,500 bond. Commercial contractors have different bond requirements.
7What is the R-39 license fee in Arizona?
A.$200
B.$400
C.$580
D.$720
Explanation: The Arizona R-39 (residential air conditioning and refrigeration) license fee is $720. The C-39 (commercial) license fee is $580. These fees are paid to the ROC upon approval of the license application.
8In Arizona's desert climate, what outdoor design temperature is used for cooling load calculations in Phoenix?
A.95°F
B.100°F
C.108°F
D.120°F
Explanation: The ASHRAE 1% cooling design temperature for Phoenix, Arizona is approximately 108°F. This extreme design temperature significantly impacts equipment sizing, ductwork design, and energy efficiency requirements for HVAC systems.
9What unique challenge does Arizona's desert climate present for HVAC system design compared to humid climates?
A.Extremely high latent cooling loads
B.Very low latent loads but extremely high sensible cooling loads requiring special equipment sizing considerations
C.Excessive wind damage to equipment
D.Frequent flooding of outdoor equipment
Explanation: Arizona's dry desert climate produces very low latent (moisture) loads but extremely high sensible (temperature) cooling loads due to 108°F+ design temperatures. Systems must be sized for the huge temperature differential while avoiding oversizing for the minimal humidity removal needed.
10Does Arizona require continuing education for HVAC contractor license renewal?
A.Yes, 16 hours annually
B.Yes, 8 hours every 2 years
C.No, Arizona does not require CE for license renewal
D.Yes, 24 hours every 3 years
Explanation: Arizona does not require continuing education for HVAC contractor license renewal. However, contractors must complete the Statutes and Rules Training update if regulations change significantly. License renewal includes payment of fees and maintaining the required bond.

About the AZ HVAC Exam

The Arizona HVAC contractor exam is the 80-question PSI R-39R/C-39 (CR-39) Air Conditioning and Refrigeration trade exam, taken alongside the AZ Statutes and Rules Training Course and Exam (SRE). It covers the residential R-39R, commercial C-39, and dual CR-39 classifications; the solar-inclusive R-39/C-79/CR-79 classifications add a separate 30-question solar exam. Four years of experience are required.

Exam sponsor: Arizona Registrar of Contractors (ROC). The requirements and fees below concern the certification or admission exam, separate from our free practice resources.

Questions

80 questions

Time Limit

210 minutes

Passing Score

70%

Exam / Certification Fees

$66 (PSI trade exam) + $61 (AZ Statutes & Rules)

Exam sponsor website

Fees, eligibility, and exam policies can change. Confirm them with the exam sponsor before applying or paying.

Our practice resources: topics covered

We aim to reflect publicly available exam outlines and topic information in our study resources. Coverage, format, and difficulty may differ from the actual exam, and we cannot guarantee that every detail is accurate or current. Confirm exam requirements, fees, and policies with the official exam sponsor.

15%

Refrigeration

12 of the 80 PSI trade-exam items: vapor compression cycle, charging and diagnostics, refrigerant handling, and EPA Section 608 practice

15%

Air Conditioning

12 items: comfort cooling and heat pump equipment, psychrometrics, and Arizona desert sensible cooling performance

15%

Warm Air Heating

12 items: gas combustion, furnace ignition and safety controls, IFGC vent categories, and electric resistance heat

10%

Controls and Motors

8 items: 24VAC control circuits, contactors, capacitors, PSC/ECM/three-phase motors, and NEC Article 440 sizing

15%

Boilers, Ventilation & Evaporative Coolers

12 items (4 each): ASME Section IV low-pressure boilers, IMC ventilation and combustion air, and swamp cooler operation

19%

Fuel, Water & Steam/Chilled/Condensing Water Piping

15 items (5 each): IFGC fuel gas piping, hydronic water piping and relief valves, and steam, hot, chilled and condenser water loops

11%

Testing, Balancing, Inspections & Sizing/Estimating

9 items (5 + 4): static pressure and airflow measurement, balancing, code inspections, and ACCA Manual J/S/D sizing. Arizona statutes and rules are tested separately on the SRE

Preparing for the AZ HVAC Exam

What You Need to Know

  • Passing score: 70%
  • Exam length: 80 questions
  • Time limit: 210 minutes
  • Exam / certification fees: $66 (PSI trade exam) + $61 (AZ Statutes & Rules) Official sources

Using Our Practice Resources

  • Work through all 150 available questions
  • Review every answer and explanation
  • Track weak areas and revisit them
  • Use our AI tutor for tough concepts

AZ HVAC: Suggested Study Strategy

1Focus on Arizona-specific ROC regulations including license classifications (R-39R, C-39, CR-39), bond requirements, and the complaint resolution process
2Master cooling load calculations for Arizona's extreme desert climate with 110°F+ design temperatures and very low humidity
3Study OSHA heat illness prevention standards — Arizona's extreme heat makes this a critical safety topic for outdoor HVAC work
4Understand the differences between residential (R-39R) and commercial (C-39) scope of work, when a dual license (CR-39) is needed, and when solar work pushes you into R-39/C-79/CR-79
5Review energy efficiency requirements including SEER2 minimums for Arizona's Southwest climate region

Frequently Asked Questions

What are the Arizona HVAC license classifications?

The Arizona ROC issues R-39R Air Conditioning and Refrigeration (residential), C-39 Air Conditioning and Refrigeration (commercial), and CR-39 (dual, combining C-39 and R-39R). Adding solar work requires R-39, C-79, or CR-79, which are the same classifications 'Including Solar.' All applicants pass the AZ Statutes and Rules Exam plus the PSI trade exam; the solar classifications add a separate 30-question solar exam.

How much experience do I need for an Arizona HVAC license?

A.R.S. 32-1122(B)(1) requires the qualifying party to have at least 4 years of practical or management trade experience in the classification applied for, at least 2 years of which must fall within the last 10 years. Technical training at an accredited college or university, or in a manufacturer's accredited training program, may substitute for no more than 2 of the 4 years.

What bond is required for Arizona HVAC contractors?

Residential specialty contractors (R-39R) post $4,250 for contemplated annual volume under $375,000 and $7,500 at $375,000 or more. Commercial specialty contractors (C-39) post $2,500 at $150,000 or less, rising through $7,000, $17,500, $25,000 and $37,500 to $50,000 for volume over $10 million. A dual CR-39 licensee combines the residential and commercial amounts.

How much does the Arizona HVAC contractor license cost?

The PSI trade exam is $66 (a solar exam adds $40, or $116 for two exams) and the AZ Statutes and Rules Training Course and Exam is $61 through GMetrix. A.R.S. 32-1126 caps the biennial application and license fee at $350 for a specialty residential license, $1,000 for specialty commercial, and $1,350 for specialty dual; residential and dual applicants also pay a Residential Contractors' Recovery Fund assessment capped at $600 per biennial period. Confirm current amounts on the ROC fee schedule.

Does Arizona require continuing education for HVAC contractors?

The Arizona ROC does not require continuing education to renew a contractor license. Licenses renew on a biennial cycle, and the renewal obligation is to keep the bond in force and pay the renewal fee and any recovery fund assessment. The Statutes and Rules Exam is a one-time requirement for new qualifying parties, not a recurring update.