Free AZ HVAC Exam Prep
Arizona HVAC Contractor License (ROC R-39R/C-39/CR-39)
Prepare for the AZ HVAC exam without spending hundreds on expensive prep courses. Free study guides, practice questions, flashcards, and related exam resources.
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Arizona HVAC Contractor License License: Complete Roadmap
Follow this path to organize your licensing and exam preparation
Arizona ROC Statutes & RegulationsYou are here
Master ARS Title 32 Chapter 10, contractor classifications (R-39R, C-39, CR-39), bond schedules, recovery fund limits, and prompt pay requirements.
Refrigeration Principles & EPA 608
Study vapor compression mechanics, superheat/subcooling charging matrices, A2L refrigerant safety, and deep vacuum evacuation protocols.
Heating Systems, Heat Pumps & Duct Sizing
Master gas combustion, high-altitude orifice derating, reversing valve logic, defrost sequencing, and ACCA Manual D duct design.
Electrical Circuits, Desert Loads & Mechanical Codes
Review NEC Article 440 conductor/breaker sizing, motor diagnostics, Phoenix desert sensible load calculations, IMC/IFGC codes, and OSHA construction safety.
Practice Exams & Code Review
Complete full-length timed practice exams and review trade calculations for airflow, psychrometrics, and hydronics.
Free AZ HVAC Prep Tools
100 Practice Questions
Arizona-specific questions on ROC licensing, desert climate HVAC, trade knowledge, and AZ statutes
AI-Powered Learning
Get contextual hints and wrong-answer explanations powered by AI
2026 Updated
Reflects current Arizona ROC regulations and HVAC contractor licensing requirements
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All 100 practice questions are free — no account required
What You'll Study
10 chapters covering the exam topics in this guide
Chapter 1: Arizona ROC Licensing & Legal Framework
5 sections
Chapter 2: Thermodynamics & The Vapor Compression Refrigeration Cycle
5 sections
Chapter 3: Refrigerant Management, EPA Section 608 & Environmental Compliance
5 sections
Chapter 4: Heating Systems: Gas Furnaces, Electric Heat & Combustion Safety
5 sections
Chapter 5: Heat Pump Systems & Defrost Operation
5 sections
Chapter 6: Air Distribution, Duct Design & Airflow Dynamics
5 sections
Chapter 7: Psychrometrics & Desert Climate HVAC Load Sizing
5 sections
Chapter 8: HVAC Electrical Systems, Motors & Control Circuits
5 sections
Chapter 9: Hydronics, Boilers, Chilled Water & Commercial Systems
5 sections
Chapter 10: Codes, Piping Systems, Safety & OSHA Standards
5 sections
AZ HVAC Exam Details
Arizona HVAC Contractor License (ROC R-39R/C-39/CR-39)
Administered by Arizona Registrar of Contractors (ROC)
Exam Content Breakdown
Based on the official Arizona Registrar of Contractors (ROC) content outline
12 of 80 items on the PSI R-39R/C-39 (CR-39) content outline: vapor compression cycle, superheat and subcooling diagnostics, refrigerant handling, and EPA Section 608 practice
12 of 80 items: comfort cooling equipment, heat pumps, psychrometrics, and Arizona desert sensible cooling performance
12 of 80 items: gas combustion, furnace ignition and safety controls, vent categories, and electric resistance heating
8 of 80 items: 24VAC control circuits, contactors and relays, capacitors, PSC/ECM/three-phase motors, and NEC Article 440 sizing
12 of 80 items (4 each): ASME Section IV low-pressure boilers, mechanical ventilation and combustion air, and direct/indirect evaporative cooling
15 of 80 items (5 each): IFGC fuel gas piping, hydronic water piping and relief valves, and steam, hot, chilled and condenser water systems
9 of 80 items (5 + 4): airflow and static pressure measurement, system balancing, code inspections, and ACCA Manual J/S/D sizing
What's Included
10 Chapters
Complete exam coverage
Practice Quizzes
With detailed explanations
Free to Start
No credit card required
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What's Next After the AZ HVAC?
After passing the AZ HVAC, you can pursue these career paths
Arizona Commercial HVAC Contractor (C-39)
Expand from residential cooling into large commercial chillers, VRF networks, and industrial refrigeration projects.
Arizona General Commercial Contractor (B-1)
Advance into prime general commercial contracting overseeing complete commercial building construction and MEP trades.
AZ HVAC Exam FAQ
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