{"product_id":"texas-commercial-refrigeration-class-a-contractor-book-package","title":"Texas Commercial Refrigeration Class A Contractor Book Package","description":"\u003ch1 style=\"color: #d32f2f;\"\u003eTexas Commercial Refrigeration Class A Contractor Book Package\u003c\/h1\u003e\n\n\u003cp\u003ePrepare for the Texas Commercial Refrigeration Class A Contractor examination with a comprehensive collection of Texas licensing references, current mechanical and fuel-gas codes, refrigeration technical material, safety information, and air-distribution resources. This book package brings together important references for candidates pursuing the \u003cstrong\u003eTexas Commercial Refrigeration Class A\u003c\/strong\u003e contractor license through the Texas Department of Licensing and Regulation.\u003c\/p\u003e\n\n\u003cp\u003eThe Commercial Refrigeration endorsement covers refrigeration work involving mechanical or absorption equipment used to control temperature or humidity for the intended use of a specific space. Texas also places qualifying process cooling and heating work within the applicable air-conditioning and refrigeration licensing framework. A \u003cstrong\u003eClass A\u003c\/strong\u003e license allows a contractor to work on systems of any size within the authorized endorsement.\u003c\/p\u003e\n\n\u003cp\u003eThe Texas Commercial Refrigeration Class A examination is a broad contractor-level test. Candidates should prepare for refrigeration principles, refrigeration components, controls, piping, system design, service procedures, testing, safety, combustion air, air distribution, and equipment requirements. The examination also requires familiarity with the Texas laws and rules governing licensed Air Conditioning and Refrigeration Contractors.\u003c\/p\u003e\n\n\u003cp\u003eTexas updated its adopted mechanical and fuel-gas codes effective September 1, 2026. This package includes the \u003cstrong\u003e2024 Uniform Mechanical Code\u003c\/strong\u003e, \u003cstrong\u003e2024 International Mechanical Code\u003c\/strong\u003e, and \u003cstrong\u003e2024 International Fuel Gas Code\u003c\/strong\u003e, along with technical and regulatory references that support preparation for the current licensing environment.\u003c\/p\u003e\n\n\u003cp\u003eThe package also includes \u003cstrong\u003eModern Refrigeration and Air Conditioning, 22nd Edition\u003c\/strong\u003e, a substantial technical reference for refrigeration cycles, components, controls, system operation, troubleshooting, and service. A Ductulator is included to support air-distribution calculations involving airflow, velocity, friction rate, and duct sizing.\u003c\/p\u003e\n\n\u003cp\u003eEffective preparation should combine technical knowledge with efficient open-book reference navigation. Candidates should know which reference is most likely to contain a specific answer instead of searching through every book during the examination. Building that familiarity before test day can make the large reference library much easier to manage.\u003c\/p\u003e\n\n\u003ch2 style=\"color: #d32f2f;\"\u003eExam Details\u003c\/h2\u003e\n\n\u003cp\u003eThe Texas Commercial Refrigeration Class A examination is administered through \u003cstrong\u003ePSI\u003c\/strong\u003e for the \u003cstrong\u003eTexas Department of Licensing and Regulation\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eExam:\u003c\/strong\u003e Texas Commercial Refrigeration Class A\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLicensing Agency:\u003c\/strong\u003e Texas Department of Licensing and Regulation\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTesting Provider:\u003c\/strong\u003e PSI\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eScored Questions:\u003c\/strong\u003e 120\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTime for Scored Questions:\u003c\/strong\u003e 230 minutes\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNon-Scored Questions:\u003c\/strong\u003e 5\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAdditional Time for Non-Scored Questions:\u003c\/strong\u003e 10 minutes\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePassing Score:\u003c\/strong\u003e 70%\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eExam Type:\u003c\/strong\u003e Open book\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLicense Class:\u003c\/strong\u003e Class A\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEndorsement:\u003c\/strong\u003e Commercial Refrigeration\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eThe current Texas examination structure distributes the 120 scored questions across the following technical areas:\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAir Distribution:\u003c\/strong\u003e 6 questions\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBasic Refrigeration Components:\u003c\/strong\u003e 10 questions\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCombustion Air:\u003c\/strong\u003e 3 questions\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eControls:\u003c\/strong\u003e 14 questions\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEquipment Requirements:\u003c\/strong\u003e 12 questions\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHVACR Systems and Design:\u003c\/strong\u003e 20 questions\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePiping:\u003c\/strong\u003e 11 questions\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRefrigeration Principles:\u003c\/strong\u003e 10 questions\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSafety:\u003c\/strong\u003e 7 questions\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eService:\u003c\/strong\u003e 11 questions\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTesting:\u003c\/strong\u003e 6 questions\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eHVACR Systems and Design\u003c\/strong\u003e is the largest examination category with 20 questions. Controls follows with 14 questions, while Equipment Requirements, Piping, Service, Basic Refrigeration Components, and Refrigeration Principles are also significant areas.\u003c\/p\u003e\n\n\u003cp\u003eThe breadth of the blueprint means candidates should avoid studying only refrigeration theory. The examination combines theory with practical equipment knowledge, code compliance, troubleshooting, controls, piping, installation, safety, and system design.\u003c\/p\u003e\n\n\u003ch2 style=\"color: #d32f2f;\"\u003eOpen Book Test\u003c\/h2\u003e\n\n\u003cp\u003eThe Texas Commercial Refrigeration Class A Contractor examination is an \u003cstrong\u003eopen book test\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003cp\u003eCandidates may bring references permitted under the current PSI examination rules. Approved books should be prepared before arriving at the testing center so candidates can navigate them efficiently during the examination.\u003c\/p\u003e\n\n\u003cp\u003ePermitted reference materials may be highlighted and underlined before testing. Notes made before the examination and permitted permanent indexing can also help organize approved books. Temporary removable tabs, loose additional paper, and other materials prohibited by PSI should not be used.\u003c\/p\u003e\n\n\u003cp\u003eCandidates may not add new notes, highlighting, underlining, or indexing to their reference materials during the examination session.\u003c\/p\u003e\n\n\u003cp\u003eOpen-book preparation should involve more than marking pages. Candidates should know which book applies to each major subject. Mechanical-code questions may point to the UMC or IMC, fuel-gas questions to the IFGC, Texas licensing questions to Chapter 1302 or Chapter 75, and refrigeration theory or troubleshooting questions to Modern Refrigeration and Air Conditioning.\u003c\/p\u003e\n\n\u003cp\u003eBeginning September 1, 2026, Texas adopted the \u003cstrong\u003e2024 International Mechanical Code\u003c\/strong\u003e, \u003cstrong\u003e2024 International Fuel Gas Code\u003c\/strong\u003e, and \u003cstrong\u003e2024 Uniform Mechanical Code\u003c\/strong\u003e. Candidates preparing for current testing should become comfortable navigating these editions.\u003c\/p\u003e\n\n\u003ch2 style=\"color: #d32f2f;\"\u003eLicensing Steps\u003c\/h2\u003e\n\n\u003col\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMeet the minimum age requirement.\u003c\/strong\u003e Texas applicants for an Air Conditioning and Refrigeration Contractor license must be at least 18 years old.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMeet an approved experience pathway.\u003c\/strong\u003e The standard pathway requires at least 48 months of practical air-conditioning and refrigeration experience under the supervision of a licensed contractor during the preceding 72 months.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUse the certified-technician pathway when applicable.\u003c\/strong\u003e Applicants who have held a technician certification for the preceding 12 months may qualify with at least 36 months of practical experience during the preceding 48 months.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSelect Class A and the Commercial Refrigeration endorsement.\u003c\/strong\u003e The selected class and endorsement determine the applicable licensing examination and authorized work.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSubmit the contractor application to TDLR.\u003c\/strong\u003e Experience documentation is reviewed as part of the eligibility process.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eReceive examination eligibility.\u003c\/strong\u003e After TDLR confirms eligibility, PSI provides instructions for examination registration and scheduling.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePrepare with the appropriate references.\u003c\/strong\u003e Study the Texas licensing references, current mechanical and fuel-gas codes, refrigeration technical material, and related examination subjects.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTake the Commercial Refrigeration Class A examination.\u003c\/strong\u003e Complete the examination within the allotted testing time.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAchieve the required passing score.\u003c\/strong\u003e The current passing requirement is 70%.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSubmit the required insurance documentation.\u003c\/strong\u003e After passing the examination, applicants must satisfy the applicable Class A insurance requirement.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eComplete the TDLR licensing process.\u003c\/strong\u003e All applicable licensing requirements must be completed before operating under the contractor license.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch2 style=\"color: #d32f2f;\"\u003eState Requirements\u003c\/h2\u003e\n\n\u003cp\u003eTexas Air Conditioning and Refrigeration Contractor licensing is administered by TDLR under \u003cstrong\u003eTexas Occupations Code Chapter 1302\u003c\/strong\u003e and \u003cstrong\u003eTexas Administrative Code Chapter 75\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003cp\u003eA \u003cstrong\u003eClass A\u003c\/strong\u003e license allows the license holder to work on systems of any size within the authorized endorsement. Unlike Class B, Class A does not impose the Class B cooling-capacity and heating-output limitations.\u003c\/p\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eCommercial Refrigeration\u003c\/strong\u003e endorsement covers the use of mechanical or absorption equipment to control temperature or humidity to satisfy the intended use of a specific space. Commercial refrigeration and qualifying process cooling and heating work include equipment such as coolers, freezers, ice machines, and equipment used for applicable temperature and humidity control.\u003c\/p\u003e\n\n\u003cp\u003eThe standard experience pathway requires at least \u003cstrong\u003e48 months of practical air-conditioning and refrigeration experience during the preceding 72 months\u003c\/strong\u003e under the supervision of a licensed Air Conditioning and Refrigeration Contractor.\u003c\/p\u003e\n\n\u003cp\u003eAn applicant who has held a certified technician designation for the preceding 12 months may qualify through a pathway requiring at least \u003cstrong\u003e36 months of practical experience during the preceding 48 months\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003cp\u003eTexas also recognizes certain exceptions and alternative experience qualifications for eligible applicants with relevant education, engineering backgrounds, military training, or qualifying industrial experience.\u003c\/p\u003e\n\n\u003cp\u003eAfter passing the examination, a Class A contractor must maintain the commercial general liability insurance required by TDLR while the license is active. The current minimum Class A coverage is $300,000 per occurrence for property damage and bodily injury, $600,000 aggregate for property damage and bodily injury, and $300,000 aggregate for products and completed operations.\u003c\/p\u003e\n\n\u003ch2 style=\"color: #d32f2f;\"\u003eReference Books\u003c\/h2\u003e\n\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTexas Air Conditioning and Refrigeration Contractors License Law, Texas Occupations Code, Chapter 1302\u003c\/strong\u003e\u003cbr\u003e\u003cspan\u003eCovers the statutory framework governing Texas Air Conditioning and Refrigeration Contractor licensing, license classes, endorsements, responsibilities, regulatory authority, and contractor requirements.\u003c\/span\u003e\n\u003c\/li\u003e\n\n  \u003cli\u003e\n\u003cstrong\u003eTexas Air Conditioning and Refrigeration Contractors License Rules, Texas Administrative Code, Chapter 75\u003c\/strong\u003e\u003cbr\u003e\u003cspan\u003eContains the administrative regulations governing contractor licensing, responsibilities, examinations, insurance, standards of conduct, and other requirements of the Texas Air Conditioning and Refrigeration Contractors program.\u003c\/span\u003e\n\u003c\/li\u003e\n\n  \u003cli\u003e\n\u003cstrong\u003eOSHA 29 CFR 1904\u003c\/strong\u003e\u003cbr\u003e\u003cspan\u003eCovers federal occupational injury and illness recordkeeping and reporting requirements and supports preparation for safety and contractor-compliance topics.\u003c\/span\u003e\n\u003c\/li\u003e\n\n  \u003cli\u003e\n\u003cstrong\u003eUniform Mechanical Code, 2024\u003c\/strong\u003e\u003cbr\u003e\u003cspan\u003eA current mechanical-code reference covering refrigeration systems, mechanical equipment, ventilation, combustion air, duct systems, piping, installation requirements, and related mechanical provisions.\u003c\/span\u003e\n\u003c\/li\u003e\n\n  \u003cli\u003e\n\u003cstrong\u003eInternational Mechanical Code, 2024\u003c\/strong\u003e\u003cbr\u003e\u003cspan\u003eCovers mechanical-system installation, commercial refrigeration, ventilation, exhaust, refrigeration machinery, equipment requirements, piping, and other HVACR code topics.\u003c\/span\u003e\n\u003c\/li\u003e\n\n  \u003cli\u003e\n\u003cstrong\u003eInternational Fuel Gas Code, 2024\u003c\/strong\u003e\u003cbr\u003e\u003cspan\u003eAddresses fuel-gas piping, appliance installation, combustion air, venting, pressure testing, shutoff requirements, and related fuel-gas safety provisions.\u003c\/span\u003e\n\u003c\/li\u003e\n\n  \u003cli\u003e\n\u003cstrong\u003eModern Refrigeration and Air Conditioning, 22nd Edition\u003c\/strong\u003e\u003cbr\u003e\u003cspan\u003eA comprehensive technical HVACR reference covering refrigeration principles, components, controls, electrical systems, commercial refrigeration, troubleshooting, service procedures, and system operation.\u003c\/span\u003e\n\u003c\/li\u003e\n\n  \u003cli\u003e\n\u003cstrong\u003eDuctulator\u003c\/strong\u003e\u003cbr\u003e\u003cspan\u003eA practical air-distribution tool for evaluating airflow, duct size, velocity, friction rate, and related duct-system relationships during study and field calculations.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2 style=\"color: #d32f2f;\"\u003eExam Room Approved Books\u003c\/h2\u003e\n\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTexas Air Conditioning and Refrigeration Contractors License Law, Texas Occupations Code, Chapter 1302\u003c\/strong\u003e\u003cbr\u003e\u003cspan\u003eThe Texas licensing statute is included among the regulatory references used for contractor examination preparation.\u003c\/span\u003e\n\u003c\/li\u003e\n\n  \u003cli\u003e\n\u003cstrong\u003eTexas Air Conditioning and Refrigeration Contractors License Rules, Texas Administrative Code, Chapter 75\u003c\/strong\u003e\u003cbr\u003e\u003cspan\u003eThe administrative rules are included among the Texas law and licensing references applicable to Air Conditioning and Refrigeration contractor testing.\u003c\/span\u003e\n\u003c\/li\u003e\n\n  \u003cli\u003e\n\u003cstrong\u003eOSHA 29 CFR 1904\u003c\/strong\u003e\u003cbr\u003e\u003cspan\u003eThe OSHA occupational injury and illness recordkeeping provisions are included in the contractor examination reference material.\u003c\/span\u003e\n\u003c\/li\u003e\n\n  \u003cli\u003e\n\u003cstrong\u003eUniform Mechanical Code, 2024\u003c\/strong\u003e\u003cbr\u003e\u003cspan\u003eThe 2024 UMC is part of the current Texas mechanical-code framework effective September 1, 2026.\u003c\/span\u003e\n\u003c\/li\u003e\n\n  \u003cli\u003e\n\u003cstrong\u003eInternational Mechanical Code, 2024\u003c\/strong\u003e\u003cbr\u003e\u003cspan\u003eThe 2024 IMC is part of the current Texas mechanical-code framework effective September 1, 2026.\u003c\/span\u003e\n\u003c\/li\u003e\n\n  \u003cli\u003e\n\u003cstrong\u003eInternational Fuel Gas Code, 2024\u003c\/strong\u003e\u003cbr\u003e\u003cspan\u003eThe 2024 IFGC is part of the current Texas fuel-gas code framework effective September 1, 2026.\u003c\/span\u003e\n\u003c\/li\u003e\n\n  \u003cli\u003e\n\u003cstrong\u003eModern Refrigeration and Air Conditioning, 22nd Edition\u003c\/strong\u003e\u003cbr\u003e\u003cspan\u003eA technical reference used for refrigeration principles, equipment, controls, service, troubleshooting, and HVACR systems.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eDuctulator\u003c\/strong\u003e included in this package can be used as a study and calculation resource. Candidates should follow the current PSI reference list and testing-center requirements regarding the specific duct-sizing calculator permitted in the exam room.\u003c\/p\u003e\n\n\u003ch2 style=\"color: #d32f2f;\"\u003eTest Information and Study Materials\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eHVACR Systems and Design:\u003c\/strong\u003e With approximately 20 questions, this is the largest individual examination category. Candidates should understand complete commercial refrigeration systems, system selection, equipment application, capacity, operating conditions, installation requirements, and design principles.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eControls:\u003c\/strong\u003e Approximately 14 questions involve refrigeration and HVACR controls. Review thermostats, pressure controls, relays, contactors, solenoid valves, defrost controls, safety controls, temperature controls, and system sequencing.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eEquipment Requirements:\u003c\/strong\u003e Approximately 12 questions address equipment requirements. Study installation, access, clearances, equipment ratings, machinery-room considerations, code requirements, and proper application of refrigeration equipment.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003ePiping:\u003c\/strong\u003e Approximately 11 questions cover piping. Review refrigerant piping, suction lines, liquid lines, discharge lines, oil return, fittings, piping support, insulation, installation practices, and system configuration.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eService:\u003c\/strong\u003e Approximately 11 questions cover service and troubleshooting. Candidates should understand common refrigeration-system faults, electrical diagnosis, refrigerant charging, evacuation, recovery, leak detection, compressor problems, and system performance.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eBasic Refrigeration Components:\u003c\/strong\u003e Approximately 10 questions address compressors, condensers, evaporators, metering devices, receivers, accumulators, filter-driers, sight glasses, and other refrigeration components.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eRefrigeration Principles:\u003c\/strong\u003e Approximately 10 questions test fundamental concepts such as pressure-temperature relationships, sensible and latent heat, heat transfer, saturation, superheat, subcooling, compression, condensation, expansion, and evaporation.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eSafety:\u003c\/strong\u003e Approximately seven questions focus on safe work practices. Review refrigerant handling, electrical safety, pressure hazards, personal protective equipment, workplace procedures, and applicable safety requirements.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eAir Distribution:\u003c\/strong\u003e Approximately six questions address air-distribution principles. The included Ductulator can support study of airflow, velocity, friction rate, and duct sizing.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eTesting:\u003c\/strong\u003e Approximately six questions involve testing. Review pressure and temperature measurements, superheat, subcooling, electrical measurements, refrigerant system testing, leak testing, and system performance evaluation.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eCombustion Air:\u003c\/strong\u003e Approximately three questions involve combustion-air concepts. Review applicable mechanical and fuel-gas code requirements when fuel-fired equipment is part of a system.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eCommercial Refrigeration Applications:\u003c\/strong\u003e Study walk-in coolers, freezers, reach-in equipment, ice machines, refrigerated spaces, condensing units, evaporators, compressors, and commercial system controls.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eDefrost Systems:\u003c\/strong\u003e Review off-cycle, electric, and other applicable defrost methods, including controls, timing, termination, and system behavior during and after defrost.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eRefrigerant Charging:\u003c\/strong\u003e Understand charging methods, refrigerant state, system operating conditions, superheat and subcooling, and how charge affects equipment performance.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eReference Navigation:\u003c\/strong\u003e Practice deciding which reference applies before beginning a search. Code-compliance questions may require the IMC or UMC, fuel-gas questions may require the IFGC, regulatory questions require Texas law and rules, and refrigeration theory often points to Modern Refrigeration and Air Conditioning.\u003c\/p\u003e\n\n\u003ch2 style=\"color: #d32f2f;\"\u003eHow 1 Exam Prep Helps You Reach Your Goal\u003c\/h2\u003e\n\n\u003cp\u003e1 Exam Prep helps Texas Commercial Refrigeration Class A candidates organize a broad contractor reference library into a structured preparation strategy. Candidates can focus on the highest-value examination subjects while developing familiarity with the books used for different types of questions.\u003c\/p\u003e\n\n\u003cp\u003eTrade-focused review can reinforce refrigeration components, HVACR systems, system design, piping, controls, service, testing, refrigeration principles, equipment requirements, safety, combustion air, and air distribution.\u003c\/p\u003e\n\n\u003cp\u003eReference-navigation practice is especially valuable on an open-book examination with multiple codes and technical references. Candidates can practice recognizing the topic of a question and moving directly to the resource most likely to contain the relevant information.\u003c\/p\u003e\n\n\u003cp\u003eModern Refrigeration and Air Conditioning can support technical study of refrigeration cycles, equipment operation, controls, service, and troubleshooting, while the mechanical and fuel-gas codes support formal installation and code-compliance questions.\u003c\/p\u003e\n\n\u003cp\u003eThe Texas law and rules references help candidates connect technical contracting work with the responsibilities of holding a state contractor license. This includes understanding the license class, endorsement, regulatory framework, and professional requirements that apply to licensed contractors.\u003c\/p\u003e\n\n\u003cp\u003eThe goal is to combine organized study guidance, refrigeration-focused technical review, open-book navigation, calculation practice, code familiarity, and contractor-law knowledge into a practical preparation structure. This approach supports candidates preparing for the Texas Commercial Refrigeration Class A examination without guaranteeing a specific examination or licensing result.\u003c\/p\u003e\n\n\u003ch2 style=\"color: #d32f2f;\"\u003eFrequently Asked Questions\u003c\/h2\u003e\n\n\u003ch2 style=\"color: #d32f2f;\"\u003eIs the Texas Commercial Refrigeration Class A exam open book?\u003c\/h2\u003e\n\n\u003cp\u003eYes. The current Texas Commercial Refrigeration Class A examination is an \u003cstrong\u003eopen book test\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003ch2 style=\"color: #d32f2f;\"\u003eHow many scored questions are on the exam?\u003c\/h2\u003e\n\n\u003cp\u003eThe current examination contains \u003cstrong\u003e120 scored questions\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003ch2 style=\"color: #d32f2f;\"\u003eAre there non-scored questions?\u003c\/h2\u003e\n\n\u003cp\u003eYes. The current contractor examination also includes \u003cstrong\u003e5 non-scored questions\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003ch2 style=\"color: #d32f2f;\"\u003eHow much time is allowed?\u003c\/h2\u003e\n\n\u003cp\u003eThe scored portion allows \u003cstrong\u003e230 minutes\u003c\/strong\u003e, with an additional 10 minutes for the non-scored questions.\u003c\/p\u003e\n\n\u003ch2 style=\"color: #d32f2f;\"\u003eWhat score is required to pass?\u003c\/h2\u003e\n\n\u003cp\u003eThe current passing score is \u003cstrong\u003e70%\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003ch2 style=\"color: #d32f2f;\"\u003eWho administers the examination?\u003c\/h2\u003e\n\n\u003cp\u003eThe examination is administered through \u003cstrong\u003ePSI\u003c\/strong\u003e for the Texas Department of Licensing and Regulation.\u003c\/p\u003e\n\n\u003ch2 style=\"color: #d32f2f;\"\u003eWhat does a Class A license allow?\u003c\/h2\u003e\n\n\u003cp\u003eA Texas Class A Air Conditioning and Refrigeration Contractor license allows the license holder to work on systems of any size within the authorized endorsement.\u003c\/p\u003e\n\n\u003ch2 style=\"color: #d32f2f;\"\u003eWhat does the Commercial Refrigeration endorsement cover?\u003c\/h2\u003e\n\n\u003cp\u003eThe endorsement covers qualifying refrigeration work using mechanical or absorption equipment to control temperature or humidity for the intended use of a specific space.\u003c\/p\u003e\n\n\u003ch2 style=\"color: #d32f2f;\"\u003eWhat code editions apply beginning September 1, 2026?\u003c\/h2\u003e\n\n\u003cp\u003eTexas adopted the \u003cstrong\u003e2024 International Mechanical Code\u003c\/strong\u003e, \u003cstrong\u003e2024 International Fuel Gas Code\u003c\/strong\u003e, and \u003cstrong\u003e2024 Uniform Mechanical Code\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003ch2 style=\"color: #d32f2f;\"\u003eWhich exam category has the most questions?\u003c\/h2\u003e\n\n\u003cp\u003eHVACR Systems and Design is the largest current category, with approximately \u003cstrong\u003e20 questions\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003ch2 style=\"color: #d32f2f;\"\u003eAre controls important for this exam?\u003c\/h2\u003e\n\n\u003cp\u003eYes. Controls account for approximately \u003cstrong\u003e14 questions\u003c\/strong\u003e, making them one of the largest individual subject areas.\u003c\/p\u003e\n\n\u003ch2 style=\"color: #d32f2f;\"\u003eWhy is Modern Refrigeration and Air Conditioning important?\u003c\/h2\u003e\n\n\u003cp\u003eThe book supports preparation for refrigeration principles, components, controls, system design, troubleshooting, service, and commercial refrigeration applications.\u003c\/p\u003e\n\n\u003ch2 style=\"color: #d32f2f;\"\u003eCan approved examination books be highlighted and tabbed?\u003c\/h2\u003e\n\n\u003cp\u003eApproved references may be prepared before the examination with permitted highlighting, underlining, notes, and permanent indexing in accordance with PSI rules. Temporary removable tabs and loose additional paper are prohibited.\u003c\/p\u003e\n\n\u003ch2 style=\"color: #d32f2f;\"\u003eCan I mark my books during the examination?\u003c\/h2\u003e\n\n\u003cp\u003eNo. Candidates may not add notes, highlighting, underlining, or indexing to examination references during the testing session.\u003c\/p\u003e\n\n\u003ch2 style=\"color: #d32f2f;\"\u003eWhat should I focus on during final preparation?\u003c\/h2\u003e\n\n\u003cp\u003eFocus on HVACR systems and design, controls, equipment requirements, piping, service, refrigeration components, refrigeration principles, safety, testing, air distribution, current code requirements, and Texas contractor laws and rules.\u003c\/p\u003e\n\n","brand":"1 Exam Prep","offers":[{"title":"Default Title","offer_id":50514266587193,"sku":null,"price":1045.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1789\/0861\/files\/TX-REFRIGERATIONA-BOOKS.jpg?v=1790259226","url":"https:\/\/1examprep.com\/products\/texas-commercial-refrigeration-class-a-contractor-book-package","provider":"1 Exam Prep","version":"1.0","type":"link"}