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C-21A Refrigeration Contractor (2023-11-01)

The construction, erection and installation of devices, machinery and units for the control of air temperatures below 50oF in refrigerators, refrigerated rooms and insulated spaces, and installation of any related insulation, ducts, blowers, registers, controls over humidity and thermostatic controls, lines for supplying natural gas from the unit to the point of connection in the existing line for natural gas at the meter or at any point thereafter, electrical service from the unit’s device to protect against excessive current to the main electrical panel, but not the installation of other gas or electric services for the devices, machinery or units.

50 Questions
70% Minimum Passing Score
2 Hours

The reference material listed below was used to prepare the questions for this examination.  The examination may also contain questions based on trade knowledge or general industry practices. Except for Code books, you can base your answers on later editions of references as they become available.  For Code questions, the examinations will be based only on the edition of the Code book that is listed.

These products apply to test outline dated 2023-11-01

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  • Code of Federal Regulations, 29 CFR Part 1926 (OSHA) 2024
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    Code of Federal Regulations, 29 CFR Part 1926 (OSHA) 2024

    Publication Year: 2024

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    The OSHA 29 CFR 1926 Construction Regulations book offers convenient access to vital safety guidance for both employers and employees, aiding in the prompt identification of potential hazards on any job site. Its user-friendly design features a two-color layout, simplifying navigation and comprehension of regulations. It encompasses all 1926 regulations, along with 1903 regulations on inspections, citations, and penalties, as well as 1904 regulations concerning record keeping and reporting of occupational injuries and illnesses. Additionally, select 1910 regulations relevant to construction industries are included. The book highlights regulation changes between releases and provides easy-to-access OSHA interpretations, aiding in clarity and reference. Essential documents such as OSHA Form 300 and the Cancer Policy are incorporated. In-Cite Referencing to applicable 1910 regulations is provided for further context. Lastly, the book outlines the Most Frequently Cited Standards preceding relevant Subparts, enhancing its utility as a comprehensive safety resource.

  • Blank Quick Reference Tabs
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    Blank Quick Reference Tabs

    $13.00

  • Modern Refrigeration and Air Conditioning 22nd Edition
    Closed Book In Stock

    Modern Refrigeration and Air Conditioning 22nd Edition

    $180.00

     Modern Refrigeration and Air Conditioning bridges the gap between students and technicians, maintaining a high standard of quality in covering both fundamental principles and the latest technologies. This esteemed resource boasts a fresh instructional design that effectively combines theory, skill development, and service techniques to equip students with the knowledge needed to install and service refrigeration and HVAC systems. With the most current technical content, a logical and progressive structure, rich learning pedagogy, superior visuals, readability, and a focus on career and workplace readiness, it is ideal for today’s learners.

    Enhanced instructor and student resources include over 100 new lab activities, new HVACR videos, and a Virtual Toolbox. The content aligns with HVAC Excellence and ACCE (formerly PAHRA) accreditation requirements, ensuring comprehensive coverage to prepare students for successful careers.

    The new edition features updated and expanded coverage of heat pumps, A2L refrigerants, and the seasonal energy efficiency ratio 2 (SEER2). Over 200 labs offer hands-on practice on topics ranging from basic residential service tasks to commercial troubleshooting. The robust digital package includes Follow-the-Heat™ animations, troubleshooting activities, new HVACR videos and animations, a new HVACR Virtual Toolbox, an image library, and more.

  • Uniform Mechanical Code 2018
    Open Book In Stock

    Uniform Mechanical Code 2018

    Publication Year: 2018

    $147.00

    The 2018 edition of the Uniform Mechanical Code (UMC©) represents the most current approaches in the mechanical field. It is the sixth edition developed under the ANSI Consensus process is designated as an American National Standards by the American National Standards Institute (ANSI). The 2018 edition of the UMC reached a major milestone as it addresses specific provisions for low flammability refrigerants such as A2L and B2L; which makes it one of the first codes in the industry to address specific provisions for these low Global Warming Potential (GWP) refrigerants. Contributions to the content of this code were made by every segment of the built industry, including such diverse interests as consumers, enforcing authorities, installers/maintainers, labor, manufacturers, research/standards/ testing laboratories, special experts and users.