Wyoming Limited HVAC Technician (ICC - 600_WY) Highlighted & Tabbed Book Package

If your work touches HVAC equipment and you need to handle the electrical connections on the load side of the disconnect, Wyoming’s Limited HVAC Technician pathway is designed for that specialized scope. The ICC 600_WY exam focuses on the electrical knowledge that shows up in real HVAC service and installation—feeders and branch circuits, conductor selection, control circuits (including thermostat wiring), grounding and bonding, and the equipment/motor requirements that matter once power leaves the disconnect and heads to the unit.

This Highlighted & Tabbed Book Package gives you the two core references you listed for your prep:

• National Electrical Code (NEC), 2023
• Ugly’s Electrical References

In a timed, open-book exam, the difference between “knowing the code” and “passing the test” often comes down to navigation. You can understand the concepts, but if you burn minutes hunting for the right table, Article, or definition, the clock becomes your biggest opponent. Highlighting and tabbing are about building speed and consistency—so when you see a question about conductor sizing, HVAC equipment connections, or control circuits, you already know where you’re going in your references.

This package is built for candidates who want to study efficiently and test with confidence by developing repeatable “find paths” in the NEC and using Ugly’s for quick confirmations and supporting electrical fundamentals.

Exam Details

• Exam: 600 Wyoming Limited HVAC Technician (ICC 600_WY)
• Number of Questions: 40 multiple-choice questions
• Time Limit: 2 hours
• Book Status: Open book
• Testing Provider: Pearson VUE (ICC Contractor/Trades program)
• Exam Fee (listed for this exam): $115

The published content outline for 600_WY includes these topic areas and weightings:

• General Knowledge, Theory, Basic Load Calculations, and Definitions: 13%
• Feeders, Branch Circuits, and Conductors: 12%
• Wiring Methods (Load Side of Disconnect to Equipment or Motor): 12%
• Control Circuits (Includes Thermostat Wires): 13%
• Equipment Grounding and Bonding: 13%
• HVAC Equipment and Motors (Load Side of Disconnect to Equipment or Motor): 37%

For this exam listing, the NEC 2023 and Ugly’s Electrical References are identified in the exam outline as key references used across content areas.

Open Book Test

The 600_WY Wyoming Limited HVAC Technician exam is an open book test. That’s good news—your references are allowed—but it also means your score depends heavily on how well you can use those books under time pressure.

With 40 questions in 2 hours, you don’t have time to “research” every answer from scratch. The best strategy is to prepare so you can do two things quickly:

• Recognize the concept the question is testing (for example: load-side wiring methods, control circuits, grounding/bonding, or HVAC motor/equipment requirements).
• Confirm the exact rule or table in the NEC (and use Ugly’s as a quick support reference when electrical fundamentals or quick calculations come into play).

Highlighted and tabbed references help by reducing page-flipping and making it easier to land on the right section consistently. Over multiple practice sessions, this becomes a rhythm: read the question, identify the topic, go to the right NEC location, confirm the requirement, answer, move on.

Licensing Steps

Wyoming’s ICC exam bulletin explains that candidates must first submit a license application with the Wyoming Department of Fire Prevention and Electrical Safety before scheduling an ICC Contractor/Trades exam. If the application is satisfactory, ICC is notified of your eligibility to test. Once you receive approval, you can proceed to schedule your exam through the ICC testing partner.

In practical terms, many candidates follow a workflow like this:

1. Identify the correct limited technician category for your scope of work (Limited HVAC falls under the limited technician category for HVAC systems).
2. Document qualifying work experience using acceptable verification methods.
3. Submit your application through the Wyoming electrical licensing process.
4. Receive eligibility to test once your application is accepted.
5. Schedule your exam through Pearson VUE under the ICC Contractor/Trades program.
6. Pass the exam and complete the final licensing steps through Wyoming’s eLicense portal process.

This book package supports the part of the process you can control day-to-day: building exam readiness with the approved code reference and a field-friendly electrical companion.

State Requirements

Wyoming’s electrical licensing information defines a Limited Technician as a person licensed by the Department who has 2 years (4,000 hours) of experience in the portion of the electrical wiring industry covered by the limited license and the technical knowledge to install and supervise the installation of electrical equipment associated with the limited license held, in accordance with the NEC and applicable ordinances and regulations.

For Limited HVAC work, Wyoming lists the following limited technician category:

• LM-H: Limited electrical work for heating, ventilating and air conditioning systems, limited to electrical work on the load side of the equipment disconnect (4,000 hours)

Wyoming also states that any technician performing low voltage work must be employed at all times by a low voltage/limited contractor who carries a current Wyoming low voltage/limited contractor’s license.

On the study side, Wyoming notes that it adopts the National Electrical Code without modification and that license examinations are based on the current edition of the NEC. That’s why NEC 2023 is central to this package—your exam prep and the way you work in the field should be aligned to the same code standard.

Reference Books

Please allow up to 15 business days for tabbed and highlighted book package orders

• National Electrical Code, NEC, 2023
  Your primary exam reference. Use it to confirm code requirements for conductor selection, branch circuits and feeders, wiring methods on the load side of the disconnect, grounding and bonding, control circuit installation concepts, and the rules that apply to HVAC equipment and motors.
• Ugly's Electrical References
  A compact reference used for fast electrical fundamentals and common quick-look needs. It supports exam work by helping you confirm basics efficiently when questions involve electrical theory, quick relationships, or field-style math that complements code-based decisions.

Test Information and Study Materials

The ICC bulletin for Wyoming electrical contractor/trades testing outlines the exam format as computer-based multiple-choice testing through Pearson VUE. For 600_WY, you’ll have 2 hours to complete 40 questions in an open-book format. Because of the topic weighting, a large portion of your time should be directed to the high-impact content area: HVAC Equipment and Motors, which represents 37% of the exam.

To make your study time count, use the published content outline as your weekly structure. Here’s a practical way to turn the outline into focused preparation using NEC 2023 and Ugly’s:

• General Knowledge, Theory, Basic Load Calculations, and Definitions (13%)
  Build a habit of checking definitions and general rules in the NEC so you interpret questions correctly. A surprising number of missed questions come from misunderstanding what the code term means in context. Use Ugly’s to reinforce electrical basics and keep your math and fundamentals sharp.
• Feeders, Branch Circuits, and Conductors (12%)
  Practice questions that require you to move between the scenario and the correct NEC table or rule. Focus on reading carefully: many conductor questions are less about “what’s the answer” and more about “what conditions apply” (equipment type, installation context, and what the question is truly asking). Your goal is to get faster at finding and confirming the governing NEC section without getting lost.
• Wiring Methods (Load Side of Disconnect to Equipment or Motor) (12%)
  Train yourself to see “load side of disconnect” as an immediate clue about scope. Questions here typically test whether you understand what wiring methods and installation practices are required once power is leaving the disconnect and supplying the HVAC unit or motor. Study by reading the rule, then applying it to scenario-style prompts.
• Control Circuits (Includes Thermostat Wires) (13%)
  Control wiring is a frequent source of confusion because it blends low-voltage logic with code and installation rules. Use the NEC to anchor what is required, and practice recognizing what is being described—thermostat wiring, control circuits, routing concerns, or protection issues—so you can land quickly in the right place in your reference.
• Equipment Grounding and Bonding (13%)
  Grounding and bonding questions often feel tricky because they test understanding rather than memorization. Practice by connecting the question’s scenario to the purpose: safety, fault clearing, and proper equipment grounding/bonding on the load side. Your speed improves when you know which NEC locations you typically use to confirm grounding and bonding rules for equipment connections.
• HVAC Equipment and Motors (Load Side of Disconnect to Equipment or Motor) (37%)
  This is the centerpiece of 600_WY. Build your confidence with how the NEC addresses equipment and motor connections and what requirements come into play for HVAC equipment supplied from a disconnect. For practice, do sets of questions that force you to reference the NEC repeatedly. The goal isn’t to memorize every rule—it’s to become fast and accurate at verifying the correct requirement for the scenario in front of you.

Study tip that works for open-book exams: don’t stop at “right answer.” Each time you practice, write down the NEC location you used to confirm the answer. Then, later in the week, try to find that same location again without help. This repetition builds the navigation skill you’ll rely on during the timed exam.

How 1 Exam Prep Helps You Reach Your Goal

1 Exam Prep helps you approach the Wyoming Limited HVAC Technician exam with structure and confidence by keeping your preparation centered on what the exam actually tests and how the exam actually works.

• Organized study guidance: A clear plan built around the published content outline helps you focus on high-impact topics (especially HVAC equipment and motor-related requirements) instead of studying at random.
• Trade-focused review: Limited HVAC electrical work is specific—load-side connections, control circuits, equipment grounding, and NEC compliance in HVAC scenarios. We keep your prep aligned to the job and the exam scope.
• Practice-oriented preparation: The best open-book skill is knowing where to look. A practice-driven approach helps you develop speed and accuracy with NEC navigation and scenario-based decision making.
• Reference navigation support: Highlighted and tabbed references are designed to reduce wasted time and support consistency. When your books are easier to use, you stay focused on solving questions rather than searching pages.
• Confidence-building study structure: When you combine topic-by-topic review with repeatable reference lookups, you build confidence for test day without overcomplicating your routine.

FAQ

Which exam is this book package for?

This package is for the Wyoming Limited HVAC Technician exam, ICC 600_WY.

Is the 600_WY Wyoming Limited HVAC Technician exam open book?

Yes. The exam listing for 600_WY identifies it as an open book exam.

How many questions are on the 600_WY exam, and how long do I have?

The 600_WY exam lists 40 multiple-choice questions with a 2-hour time limit.

Who administers the 600_WY exam?

The Wyoming ICC Contractor/Trades exams are delivered through Pearson VUE under the ICC testing program.

What is the LM-H limited technician category in Wyoming?

Wyoming lists LM-H as limited electrical work for heating, ventilating and air conditioning systems, limited to electrical work on the load side of the equipment disconnect, and it shows a 4,000-hour experience requirement for that category.

Do I apply with Wyoming first, or schedule the exam first?

The Wyoming ICC exam bulletin states you must first submit a license application with the Wyoming Department of Fire Prevention and Electrical Safety before scheduling your examination. After approval, ICC is notified of your eligibility to test.

What topics are most important on the 600_WY exam?

The published outline shows the largest content area is HVAC Equipment and Motors (37%). Other areas include general theory/definitions, feeders and branch circuits, wiring methods on the load side of the disconnect, control circuits (including thermostat wires), and equipment grounding and bonding.

Why use highlighted and tabbed references for an open-book exam?

Open-book exams are still timed. When your references are easier to navigate, you spend less time searching and more time confirming the correct code rule and answering confidently within the time limit.