Minnesota Minneapolis Master Refrigeration Contractor (ICC - 769 - MN - MI) Exam Book Package

Minnesota Minneapolis Master Refrigeration Contractor (ICC - 769 - MN - MI) Exam Book Package

When you test for the Minneapolis Master Refrigeration Contractor credential, you’re proving more than technical skill—you’re proving code awareness, safety judgment, and the ability to supervise or take responsibility for refrigeration work in a city that expects professionals to know their references. The ICC 769 (MN-MI) exam is an open-book test, and that format rewards candidates who can do two things at once: understand refrigeration systems in the real world and locate the correct requirement quickly inside the approved books.

This Exam Book Package is built around the exact types of references master-level candidates rely on: the Minnesota mechanical code basis, ASHRAE safety and refrigerant classification standards, and comprehensive refrigeration textbooks that support applied knowledge across commercial systems, piping and equipment details, controls, and refrigerant gases. If you want a study set that matches how the exam is structured and how refrigeration work is actually performed, you’re in the right place.

Master-level refrigeration knowledge means you can evaluate systems—not just replace parts. You’re expected to understand the refrigeration cycle and system performance, apply safety standards, recognize how refrigerant characteristics influence system selection and application, and make professional decisions around piping, valves, accessories, and controls that impact safety and reliability. This package is designed to help you prepare for those responsibilities with references you can use before, during, and after your exam.

What You Get

• Master Refrigeration exam reference set: A focused collection of code and standards plus refrigeration textbooks aligned to the Minneapolis Master Refrigeration exam (ICC 769 MN-MI).
• Coverage across the full exam blueprint: Supports ACR fundamentals, commercial refrigeration systems, controls, piping/tubing and related equipment, and refrigeration gases.
• Built for open-book performance: Helps you study with the same materials you’ll use to confirm details quickly under exam time limits.
• Long-term trade value: These references remain useful for jobsite decision-making, troubleshooting, and requirement lookups when questions come up in the field.

Exam Details

• Exam: Minnesota (Minneapolis) Master Refrigeration
• Exam ID: 769 (MN-MI)
• Passing Score: 75%
• Number of Questions: 80 multiple-choice questions
• Time Limit: 3 hours
• Format: Computer-based, four-option multiple-choice

The exam topics are organized into five content areas. A strong study plan follows these weights so you focus where the exam places the most value.

• ACR: 40%
• Commercial Refrigeration Systems: 26%
• Controls: 10%
• Piping, Tubing, and Related Equipment: 9%
• Refrigeration Gases: 15%

That distribution tells you exactly where to spend your time: build a strong ACR foundation first, then go deep on commercial systems. After that, tighten up your refrigerant gases and controls knowledge, and finish by sharpening your speed on piping/tubing questions—because smaller sections can still make a big difference in your final score.

Open Book Test

The Minneapolis Master Refrigeration exam is an open book test. Open book is a powerful advantage only when you’re trained to use your references efficiently. With 80 questions in 3 hours, you won’t have time to search for everything from scratch. The best approach is to learn the concepts first, then practice confirming details quickly inside the correct book.

Use these open-book habits while you prepare:

• Know which reference answers which question type: Code for mechanical requirements and general provisions, ASHRAE 15 for safety expectations, ASHRAE 34 for refrigerant designation/classification, and your refrigeration texts for applied system knowledge.
• Practice index-based lookups: Fast searching starts with choosing the right keyword and letting the index take you straight to the correct section.
• Use “find-and-confirm”: Answer from your knowledge first, then verify the detail quickly instead of wandering through chapters.
• Train with time pressure: Your exam pace improves when your practice sessions feel like test day.

Licensing Steps

Minneapolis requires certain trades to hold a Certificate of Competency card before working in the City. The Master Refrigeration exam is part of that process. While individual circumstances can vary, candidates typically follow steps like these:

1. Apply through the City of Minneapolis: Start by submitting the competency card application to the City for review.
2. Receive eligibility to test: After approval, your eligibility is communicated so you can move forward with scheduling.
3. Schedule your exam through ICC testing: The exam is delivered through ICC’s contractor/trades testing program using a computer-based testing partner.
4. Study from the approved references: Build both refrigeration knowledge and fast open-book navigation skills using the same books the exam is based on.
5. Pass the exam and complete remaining City steps: After passing, follow the City’s instructions to finalize issuance of your Master Refrigeration competency card.

Master-level testing is designed to reflect supervision-ready knowledge. Expect questions that feel like real work: system choices, safety decisions, controls logic, piping and accessory application, and refrigerant considerations that affect design and operation.

State Requirements

Minnesota’s mechanical requirements form the foundation for how refrigeration systems are installed and maintained, and Minneapolis reinforces qualified work through its competency card system. For master refrigeration professionals, the expectation is clear: you can apply safety standards, recognize how refrigerant properties and classifications matter, and supervise or validate installations and service work so projects stay safe, consistent, and inspection-ready.

In day-to-day refrigeration work, that expectation shows up as practical responsibilities:

• Safety-first decision making: Understanding system safety requirements and applying them to equipment rooms, leak response awareness, and proper protective practices.
• Refrigerant professionalism: Knowing how refrigerant designation and classification influence application and safe handling decisions.
• Reliable installation practices: Making correct piping and equipment decisions that support oil return, pressure drop control, serviceability, and system longevity.
• Controls competence: Understanding the purpose of controls and protection devices so systems respond correctly under normal and fault conditions.

Reference Books

This Exam Book Package includes the following references for Minneapolis Master Refrigeration (ICC 769 MN-MI) preparation:

• 2020 Minnesota Mechanical and Fuel Gas Code with ANSI/ASHRAE Standard 62.2-2016 and ANSI/ASHRAE Standard 154-2016
  Your core Minnesota mechanical reference used for code-based requirements and provisions that affect refrigeration work, installations, and compliance expectations.
• 2016 ASHRAE 15, Safety Standards for Refrigeration Systems
  A key safety standard for refrigeration systems. Supports exam knowledge tied to safety expectations and requirement-driven decisions that affect system selection, installation, and operation.
• 2016 ASHRAE 34, Designation and Classification of Refrigerants
  Supports refrigerant designation and classification knowledge, a major part of refrigeration professionalism and a focused area in the exam blueprint.
• Modern Refrigeration and Air Conditioning (22nd edition)
  A comprehensive refrigeration text that supports applied understanding of the refrigeration cycle, components, troubleshooting logic, and system performance.
• Refrigeration and Air Conditioning Technology (10th Edition)
  Reinforces core ACR concepts, system operation, service practices, and applied learning that supports performance across multiple exam categories.

Note on editions: The Minneapolis ICC bulletin lists “Modern Refrigeration and Air Conditioning” (18th or 19th edition) and “Refrigeration and A/C Technology” (7th edition) as exam references. This package includes newer editions you provided, which are excellent for learning and practice, and many contractors use them to strengthen fundamentals and troubleshooting skills.

Test Information and Study Materials

The Minneapolis Master Refrigeration exam tests applied knowledge. The most efficient prep is to study by blueprint weight and build your ability to move quickly between concepts and reference confirmation. Use the guide below to structure your study time.

ACR (40%)
This is your biggest scoring category and the foundation for everything else. Focus on the refrigeration cycle, heat transfer concepts, saturation temperature/pressure relationships, superheat/subcooling awareness, and component functions. Your refrigeration textbooks are the best tools here because they teach the “why” behind system behavior. When you understand how and why a system works, exam questions become easier to recognize and answer confidently.

High-value ACR focus areas include:

• Cycle fundamentals and what each component is meant to accomplish
• Reading system conditions and recognizing performance symptoms
• Common causes of high/low suction and discharge pressure patterns
• Evaporator/condenser performance relationships and how airflow or load affects operation
• Efficient troubleshooting logic that avoids guesswork

Commercial Refrigeration Systems (26%)
Commercial refrigeration brings higher complexity and more specialized components and system layouts. This section rewards candidates who understand system types, application differences, and how commercial components work together. Study with a “job decision” mindset: what choice is appropriate, what device belongs where, and how the system is protected under abnormal conditions.

Strong commercial refrigeration prep includes:

• Common commercial components and their roles (receivers, accumulators, separators, regulating valves)
• Operational expectations for walk-ins, reach-ins, and low-temperature applications
• Defrost concepts and why system design impacts stability and product protection
• Safety and standards awareness that influences commercial system choices

Refrigeration Gases (15%)
This section is where ASHRAE 34 matters most. Refrigerant designation and classification knowledge supports safe application and professional decision-making. Study beyond memorization—learn what a classification means in practice, how it relates to safety considerations, and why refrigerant properties affect the way systems are designed and operated.

Practical study goals for refrigeration gases:

• Understanding refrigerant designation patterns and what they communicate
• Comfort with classification concepts and why they matter
• How refrigerant characteristics influence system application and safe practice decisions

Controls (10%)
Controls questions often come down to cause-and-effect thinking. A master refrigeration professional should understand what a control monitors, what action it triggers, and what outcome it is intended to produce. Study controls like a troubleshooting pro: identify what a system is trying to protect (compressor, evaporator, product temperature, safety condition) and how the control accomplishes it.

Controls prep that pays off:

• Purpose of common controls and protection devices
• How controls affect system stability and equipment protection
• Recognizing how a faulty control can show up in system symptoms

Piping, Tubing, and Related Equipment (9%)
Even though this is a smaller category, it can be a strong scoring opportunity because many questions are detail-oriented. Focus on correct piping decisions that support system performance: proper application of suction, liquid, and discharge line concepts; serviceability; and sound installation reasoning.

Study with a master mindset:

• Why proper piping decisions matter for oil return and system reliability
• How pressure drop affects performance and stability
• How accessories support safe, predictable operation

Open-book pacing strategy for 80 questions in 3 hours:

• Move fast on what you know: Don’t over-check easy questions.
• Use your references to confirm details: Safety standards, refrigerant classification, and code-driven questions are ideal “confirm and move on” items.
• Don’t get stuck: If a lookup is taking too long, mark it mentally and keep your pace steady.
• Train the exact exam skill: Practice sessions with your books open build the speed this exam rewards.

How 1 Exam Prep Helps You Reach Your Goal

1 Exam Prep supports your Minneapolis Master Refrigeration goal by helping you prepare with structure and trade-focused guidance—so your time goes into the same categories the exam emphasizes. Instead of bouncing between books without a plan, you can follow an organized study approach tied to the ICC 769 (MN-MI) blueprint: ACR fundamentals, commercial refrigeration systems, refrigerant gases, controls, and piping/tubing knowledge.

Our approach helps you build:

• Organized study momentum: A clear plan to tackle high-weighted areas first and tighten up secondary categories next.
• Practical refrigeration understanding: Knowledge that feels like real work—troubleshooting logic, system behavior, and professional reasoning.
• Open-book speed and confidence: Habits that improve how quickly you can confirm details inside standards and code references.
• Master-level readiness: Preparation that supports both exam performance and the real responsibility behind a master refrigeration credential.

FAQ

Who is this Master Refrigeration Exam Book Package for?

This package is for candidates preparing for the Minneapolis Master Refrigeration exam (ICC 769 MN-MI), especially experienced refrigeration professionals moving into master-level responsibility who want the right mix of code, standards, and textbook references for open-book study.

Is the ICC 769 (MN-MI) Master Refrigeration exam open book?

Yes. The Minneapolis Master Refrigeration exam is an open-book test, and strong performance depends on both refrigeration knowledge and fast navigation of the approved references.

How many questions are on the exam and how long do I have?

The exam includes 80 multiple-choice questions with a 3-hour time limit.

What score is required to pass the Minneapolis Master Refrigeration exam?

The passing score for ICC 769 (MN-MI) is 75%.

Which topics should I prioritize most when studying?

Start with ACR (40%) and Commercial Refrigeration Systems (26%). Then focus on Refrigeration Gases (15%) and Controls (10%). Finish by sharpening your speed and accuracy for Piping, Tubing, and Related Equipment (9%).

Why are ASHRAE 15 and ASHRAE 34 included?

ASHRAE 15 supports refrigeration system safety knowledge and requirement-based decision making, while ASHRAE 34 supports refrigerant designation and classification concepts—both of which are important on the exam and in professional refrigeration work.

How should I study for an open-book exam without wasting time?

Study with your books open and practice timed drills. Train yourself to choose the correct reference first, use the index efficiently, and confirm details quickly rather than searching from scratch.

Will these references still help after I pass?

Yes. These references remain useful for troubleshooting, safe practice decisions, code/standard confirmations, and long-term growth as a refrigeration professional—especially when supervising work or validating installations.