Choose a state

R39R/C39 (CR-39) Air Conditioning and Refrigeration (Residential/Commercial) (2021-04-13)

Installation, alteration, and repair of refrigeration and evaporative cooling systems. Installation, alteration and repair of heating systems of “wet,” “dry” or radiant type. “Wet” systems include steam or hot water boilers and coils or baseboard converters and are limited to 30 PSIG operating pressure and 220°F for hot water and 15 PSIG operating pressure for steam. Dry systems include gas fired furnaces and space heaters.

Installation, alteration, and repair of ventilation systems includes duct work, air filtering devices, water treatment devices, pneumatic or electrical controls and control piping. Thermal and acoustical insulation, vibration isolation materials and devices, liquid fuel piping and tanks, water and gas piping from service connection to equipment it serves. Testing and balancing of refrigerant, cooling and heating circuits and air handling systems.

If necessary, a new circuit may be added to the existing service panel or sub-panel. Excluded is the installation of a new service panel or sub-panel.

80 Questions
70% Minimum Passing Score
210 Minutes Time Allowed

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.

Sign Up for Exam Prep
These products apply to test outline dated 2021-04-13

Click Here to View the Candidate Information Bulletin Click Here to View the Candidate Information Bulletin



Open Book These books are allowed while taking your test.
Closed Book These books are for pre-test study only and are not available for use during the test.
In Stock These books are currently in stock.
Out of Stock These books are currently out of stock.

  • Open Book In Stock

    International Mechanical Code 2018

    Publication Year: 2018

    $100.00

    2018 International Mechanical Code establishes minimum regulations for mechanical systems using prescriptive and performance-related provisions. The code was developed with broad-based principles that make possible the use of new materials, methods, and design.

     

  • Open Book In Stock

    International Fuel Gas Code Turbo Tabs 2018

    Publication Year: 2018

    $18.00

    2018 IFGC Turbo Tabs consist of clear plastic self-adhesive tabs that have key sections of the 2018 International Fuel Gas Code printed on them in an easy-to-read format. Can be used with either the 2018 International Fuel Gas Code or the 2012 IFGC Code and Commentary.

  • Open Book In Stock

    International Mechanical Code Turbo Tabs 2018

    Publication Year: 2018

    $18.00

    2018 IMC Turbo Tabs consist of clear plastic self-adhesive tabs that have key sections of the 2018 International Mechanical Code printed on them in an easy-to-read format. Can be used with either the 2018 International Mechanical Code or the 2018 IMC Code and Commentary.

  • Closed Book In Stock

    ACCA Manual D: Residential Duct Systems

    Publication Year: 2009

    $100.00

    The ANSI-recognized national standard for residential HVAC duct design will help you design a duct system in less time. The popular and accurate procedure has been revised to include updated and expanded VAV guidance, with detailed examples; impacts of excess length, sag and compression in flexible ducts; and new equivalent length values for flex duct junction boxes. Manual D, from the Air Conditioning Contractors of America (ACCA), provides a single set of ANSI-recognized duct sizing principles and calculations that apply to all duct materials.

  • Closed Book In Stock

    Low Pressure Boilers 5th Edition

    $120.00

    Low Pressure Boilers is the leading resource for preparing for low pressure boiler operator and facility operating engineer licensing. This textbook provides a comprehensive overview of the latest information on the safe and efficient operation of low pressure steam and hot water boilers, cooling systems, and related equipment. Each chapter is divided into sections to aid comprehension of key concepts. To assist with preparing for a licensing exam, a separate chapter with test-taking tips and a sample exam is included.

  • Open Book In Stock

    Blank Quick Reference Tabs

    $13.00

  • Open Book In Stock

    International Fuel Gas Code 2018

    Publication Year: 2018

    $100.00

    2018 International Fuel Gas Code addresses the design and installation of fuel gas systems and gas-fired appliances through requirements that emphasize performance.

  • Closed Book In Stock

    ACCA Ductulator Slide Rule

    $55.00

    This durable two-sided plastic sizing wheel comes with a complete instruction manual for residential and commercial duct-sizing procedures. Designed by Hank Rutkowski.

  • Closed Book In Stock

    Modern Refrigeration and Air Conditioning 21st Edition

    21st Edition

    $170.00

    Modern Refrigeration and Air Conditioning is the HVACR standard for a new generation of learner. It correlates to HVAC Excellence and PAHRA accreditation requirements to ensure complete coverage that prepares students for career success. This edition has an improved instructional design, improved assessments, enhanced content on fundamentals, such as electrical theory and troubleshooting, and new digital assets that help students master knowledge, hands-on applications, and diagnostic skills. The revision also helps prepare students for employment and careers with new lab activities and features. Prepare your students for careers with new learning materials based upon the original HVACR industry standard.
    Follow-the-Heat™ Animations provide 63 short animations that introduce foundational concepts using simple, easily understood graphics and narrations.
    Troubleshooting Activities create an interactive experience designed to develop and promote troubleshooting techniques and logical diagnostic skills.
    New chapter on Electrical Troubleshooting, and expanded electrical coverage in the text and lab manual provide excellent coverage of essential information.
    Soft Skills for HVACR features emphasize the importance of workplace skills.
    Service Call Troubleshooting features present on-the-job service call situations.
    Full-color Lab Manual includes 35 new lab activities – including activities focusing on basic electrical skills and sheet metal construction.

  • Open Book In Stock

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

    Publication Year: 2024

    $32.00

    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.