Delaware Master HVACR Restricted Air Conditioning Contractor Highlighted & Tabbed Book Package

Prepare for the Delaware Master HVACR Restricted Air Conditioning examination with an organized book package covering mechanical systems, fuel-gas requirements, refrigeration principles, air-conditioning equipment, commercial load calculations, and residential load calculations. Every book included in this package is highlighted and tabbed to support focused study and faster reference navigation.

This package is designed for experienced air-conditioning technicians, refrigeration professionals, HVACR supervisors, journeypersons, qualifying applicants, and other candidates pursuing the Delaware Master HVACR Restricted Air Conditioning license. It brings the listed technical and code references together in one coordinated set so candidates can concentrate on building knowledge and practicing open-book navigation.

The Delaware restricted air-conditioning examination covers a broad range of trade subjects. Candidates may need to apply knowledge of air-conditioning and refrigeration systems, warm-air heating, boilers, ventilation, duct systems, insulation, piping, equipment, system sizing, plans, testing, maintenance, and related components within a complete system.

The included International Mechanical Code supports preparation involving mechanical equipment, refrigeration systems, ventilation, exhaust, duct construction, combustion air, boilers, chimneys, vents, system clearances, and installation requirements. The International Fuel Gas Code supports review of gas piping, appliance connections, pressure regulation, combustion air, venting, testing, and fuel-gas safety.

Modern Refrigeration and Air Conditioning provides broad technical coverage of refrigeration cycles, compressors, condensers, evaporators, metering devices, heat pumps, air-conditioning systems, electrical controls, troubleshooting, maintenance, and service practices. Manual N supports load calculations for small commercial buildings, while Manual J supports residential heating and cooling load calculations.

All five included books are highlighted and tabbed. The highlighting helps selected definitions, formulas, tables, code requirements, technical explanations, and important system concepts stand out during review. Tabs create visible navigation points throughout the books, helping candidates move between major topics more efficiently.

A prepared reference package can be especially useful for an open-book examination. Instead of beginning with unorganized books, candidates receive a coordinated set intended to support repeatable study, code navigation, calculation practice, and timed reference searches.

Exam Details

The Delaware Master HVACR Restricted Air Conditioning examination is part of the licensing process overseen by the Delaware Board of Plumbing, Heating, Ventilation, Air Conditioning and Refrigeration Examiners. Applicants pursuing licensure by examination must receive Board approval before scheduling the test with the examination provider.

The examination tests knowledge of the design, installation, maintenance, repair, fabrication, alteration, and extension of air-conditioning and refrigeration systems. Its scope also includes piping vessels, warm-air heating, low- and high-pressure boilers, ventilation systems, duct systems, insulation, and related components within a complete system.

The examination contains 95 questions, and candidates are allowed four hours to complete it. The subject outline includes General Knowledge, Plan Reading, Systems and Sizing, Piping, Equipment, and Maintenance.

General Knowledge includes 22 questions. Candidates should review refrigeration principles, heat transfer, temperature, pressure, humidity, airflow, electrical fundamentals, combustion, safety practices, tools, insulation, system operation, and common HVACR terminology.

Plan Reading includes eight questions. Candidates may need to interpret mechanical symbols, equipment schedules, duct layouts, piping routes, load information, system notes, dimensions, and equipment locations.

Systems and Sizing includes 17 questions. Preparation should include residential and commercial load calculations, equipment selection, airflow requirements, duct sizing, capacity, indoor and outdoor design conditions, building characteristics, ventilation loads, and system-performance considerations.

Piping includes 14 questions. Candidates should review refrigerant piping, fuel-gas piping, approved materials, valves, regulators, joining methods, supports, sizing procedures, pressure considerations, testing, and protection from physical damage.

Equipment includes 18 questions. Study should address compressors, condensers, evaporators, metering devices, heat pumps, air handlers, furnaces, refrigeration systems, motors, controls, safety devices, and other air-conditioning components.

Maintenance includes 16 questions. Candidates should understand system testing, troubleshooting, refrigerant-side evaluation, electrical checks, airflow measurements, equipment cleaning, control verification, leak detection, startup procedures, and preventive maintenance.

The four-hour testing period requires candidates to manage their time across direct-answer questions, calculations, reference searches, and plan interpretation. Regular practice with the books can help candidates develop a consistent method for finding information.

Open Book Test

The Delaware Master HVACR Restricted Air Conditioning examination is an open-book test. Authorized printed references may be used during testing under the examination provider’s rules.

An open-book format still requires substantial preparation. Technical references contain large amounts of information, and candidates may not have enough time to research every subject from the beginning. Efficient testing requires trade knowledge, calculation ability, and familiarity with the organization of each book.

The highlighting and tabs included in this package are designed to support organized study. Tabs provide recognizable navigation points for major chapters, code topics, formulas, load-calculation procedures, and equipment subjects. Highlighting helps selected information stand out during repeated review.

The International Mechanical Code is useful for questions involving mechanical equipment, refrigeration systems, ventilation, exhaust, duct construction, boilers, combustion air, chimneys, vents, supports, clearances, and installation requirements.

The International Fuel Gas Code supports study involving gas-piping materials, pipe sizing, regulators, shutoff valves, appliance connections, combustion air, venting, pressure testing, and fuel-gas system safety.

Modern Refrigeration and Air Conditioning supports technical preparation involving refrigeration cycles, refrigerants, compressors, condensers, evaporators, metering devices, air-conditioning systems, heat pumps, heating equipment, motors, controls, installation, troubleshooting, and maintenance.

Manual N supports commercial heating and cooling load calculations for small commercial buildings. Candidates should understand how construction, occupancy, lighting, equipment, ventilation, infiltration, windows, orientation, and design conditions affect calculated loads.

Manual J supports residential heating and cooling load calculations. Preparation should include building construction, insulation, windows, doors, orientation, infiltration, climate, occupancy, and internal heat gains.

Highlighted passages should be read in context. Definitions, exceptions, table notes, equipment conditions, and surrounding provisions may change how a rule or procedure applies. Highlighting and tabs support navigation but do not replace understanding the complete information.

Candidates should practice choosing the correct book before beginning a search. A mechanical installation question may lead to the International Mechanical Code. A fuel-gas question may require the International Fuel Gas Code. A refrigeration or equipment question may be easier to research in Modern Refrigeration and Air Conditioning.

Residential load questions may require Manual J, while small commercial load questions may require Manual N. Learning these distinctions can reduce unnecessary searching during timed practice and testing.

Licensing Steps

Begin by confirming that the Delaware Master HVACR Restricted Air Conditioning license matches the services you plan to provide. A restricted license permits work only within the specialty identified on the license.

Create an account through Delaware Professional Regulation Online Services and begin the appropriate Master HVACR Restricted application in DELPROS. Delaware professional licensing applications are submitted through the online system.

Gather the documentation required for the applicable licensing pathway. Supporting records may include employment verification, apprenticeship documents, professional license verification, certification records, and other information requested by the Board.

Applicants for the restricted air-conditioning classification must provide the required certification and qualifying experience documentation. The application pathway depends on the applicant’s apprenticeship history, work experience, and current licensing status.

An applicant with an acceptable journeyman certificate must submit the applicable apprenticeship completion documentation and proof of the required qualifying experience obtained under the supervision of a master licensee.

An applicant without an acceptable journeyman certificate must document the required period of qualifying supervised experience. The Board determines whether the applicant must complete the applicable section of the Apprenticeship By-Pass Examination.

Submit the completed application and all required attachments through DELPROS. The Board reviews the application and determines whether the candidate qualifies to take the Master HVACR Restricted Air Conditioning examination.

After receiving approval, follow the examination provider’s instructions to register and schedule the test. Review identification requirements, appointment procedures, calculator policies, authorized reference rules, and test-day requirements.

Prepare with the highlighted and tabbed books in this package. Study general HVACR knowledge, plan reading, systems and sizing, piping, equipment, maintenance, mechanical requirements, fuel-gas provisions, and load calculations.

Complete the examination and earn the required passing score. After the official result is received, complete any remaining licensing requirements shown in DELPROS.

Passing the examination is one part of the licensing process. Final eligibility and license issuance remain subject to Board review and completion of all applicable application requirements.

State Requirements

Delaware requires professionals providing regulated HVACR services to hold the appropriate state license unless a legal exemption applies. Holding an HVACR license in another jurisdiction does not automatically authorize work in Delaware.

A Master HVACR Restricted license permits the holder to provide services only within the specialty listed on the license. Delaware restricted specialties include forced-air heating, ventilation and gas piping; hydronic heating and gas piping; commercial hood systems; refrigeration; air conditioning; and gas piping.

The restricted air-conditioning classification applies to work within the state-defined air-conditioning specialty. A contractor who plans to provide services across multiple restricted specialties should pursue the unrestricted Master HVACR license.

Applicants should submit complete and consistent supporting documentation. Missing experience records, incomplete certification information, or conflicting application details may delay review and examination authorization.

The Delaware Board determines whether an applicant qualifies for examination and licensure. The examination provider administers the test but does not determine whether the applicant satisfies the state’s licensing requirements.

A Master HVACR Restricted Air Conditioning license does not automatically authorize plumbing work involving systems used to bring water into a building or remove liquid and water-carried waste. Separate plumbing authority may be required for that work.

After passing the examination, candidates must complete all remaining application requirements before the professional license can be issued. Applicants should monitor their DELPROS accounts and email for status updates or requests for additional information.

Licensed HVACR professionals must comply with the renewal, continuing education, professional conduct, and other requirements associated with the license.

A professional HVACR license is separate from a business license. Individuals planning to operate an air-conditioning contracting company may also need business registration, a legal entity, tax accounts, insurance, and local operational approvals.

Reference Books

• Included Book: International Mechanical Code, 2018
  This highlighted and tabbed code covers mechanical equipment, ventilation, exhaust systems, duct construction, refrigeration, warm-air heating, boilers, combustion air, chimneys, vents, clearances, supports, and related installation requirements.
• Included Book: International Fuel Gas Code, 2018
  This highlighted and tabbed code supports study of fuel-gas piping, appliance connections, pressure regulators, shutoff valves, combustion air, venting, pressure testing, sizing tables, approved materials, and installation safety.
• Included Book: Modern Refrigeration and Air Conditioning, 22nd Edition
  This highlighted and tabbed technical reference provides broad coverage of refrigeration, air conditioning, heating, heat pumps, electrical controls, motors, equipment, installation, troubleshooting, maintenance, tools, and service procedures.
• Included Book: Manual N – Commercial Load Calculation for Small Commercial Buildings, 5th Edition
  This highlighted and tabbed reference supports commercial heating and cooling load calculations using construction data, occupancy, lighting, equipment, ventilation, infiltration, climate, orientation, and design conditions.
• Included Book: Residential Load Calculation – Manual J, 8th Edition
  This highlighted and tabbed reference supports residential heating and cooling load calculations using building construction, insulation, windows, doors, orientation, infiltration, climate, occupancy, and internal heat gains.

Test Information and Study Materials

Begin preparation with refrigeration and air-conditioning fundamentals. Review heat transfer, pressure-temperature relationships, refrigerant flow, compressors, condensers, evaporators, metering devices, superheat, subcooling, airflow, humidity, and system troubleshooting.

Study mechanical-code subjects involving equipment installation, ventilation, exhaust, duct construction, refrigeration machinery, boilers, combustion air, clearances, supports, chimneys, vents, and equipment-room requirements.

Review fuel-gas systems, including piping materials, sizing, appliance connections, regulators, shutoff valves, combustion air, venting, testing, and installation safety. Practice reading table headings, notes, and conditions carefully.

Practice residential and commercial load calculations. Learn how building construction, insulation, windows, orientation, occupancy, lighting, equipment, ventilation, infiltration, and design temperatures affect heating and cooling loads.

Strengthen plan-reading skills by reviewing mechanical symbols, equipment schedules, duct layouts, piping routes, dimensions, system notes, equipment locations, and load information.

Review equipment operation and maintenance procedures. Study compressors, coils, air handlers, heat pumps, motors, controls, furnaces, refrigeration components, testing instruments, electrical checks, airflow measurements, leak detection, and preventive maintenance.

Complete timed reference-navigation exercises using all five books. Track which topics take the longest to locate and repeat those searches during later study sessions.

Keep a record of missed practice questions. Determine whether each error resulted from a technical knowledge gap, calculation mistake, incorrect reference selection, overlooked table note, or misunderstanding of the question.

How 1 Exam Prep Helps You Reach Your Goal

1 Exam Prep helps Delaware Master HVACR Restricted Air Conditioning candidates prepare with a coordinated highlighted and tabbed reference package covering mechanical requirements, fuel-gas systems, refrigeration, equipment, residential loads, commercial loads, piping, plans, and maintenance.

The prepared books reduce the work required to organize the reference materials. Highlighting helps selected definitions, formulas, tables, technical explanations, and code provisions stand out, while tabs create visible navigation points for frequently reviewed subjects.

The package supports trade-focused review and practice-oriented preparation. Candidates can study a subject, locate the supporting information, work through calculations, and repeat the process under timed conditions.

Reference-navigation practice helps candidates become familiar with the organization of the International Mechanical Code, International Fuel Gas Code, Modern Refrigeration and Air Conditioning, Manual N, and Manual J.

Using the books consistently can help candidates develop a repeatable process for identifying the subject, selecting the correct reference, locating the applicable information, and reviewing the complete requirement.

1 Exam Prep provides an organized reference set without guaranteeing a passing score or license approval. Examination results depend on the candidate’s knowledge, preparation, navigation ability, and performance.

Frequently Asked Questions

What is included in this highlighted and tabbed book package?

The package includes the International Mechanical Code, International Fuel Gas Code, Modern Refrigeration and Air Conditioning, Manual N, and Manual J.

Are all five books highlighted and tabbed?

Yes. All books included in this package are highlighted and tabbed to support organized study and open-book navigation.

Is the Delaware restricted air-conditioning examination open book?

Yes. The examination is open book and permits authorized printed references under the examination provider’s rules.

How many questions are on the examination?

The examination contains 95 questions, and candidates are allowed four hours to complete it.

Does this package include an online course?

No. This product includes the highlighted and tabbed books only. Online exam preparation is available separately.

Does this package include Application Service?

No. Application Service is not included with this highlighted and tabbed book package.

Are the books rented?

No rental terms or refundable deposit are included with this book package.

How long should I allow for order processing?

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

Why are both Manual N and Manual J included?

Manual N supports load calculations for small commercial buildings, while Manual J supports residential heating and cooling load calculations.

Why are both mechanical and fuel-gas codes included?

The examination covers mechanical-system requirements and fuel-gas subjects, including equipment, ventilation, ductwork, piping, combustion air, venting, and installation safety.

Do highlighted and tabbed books replace studying?

No. Highlighting and tabs support navigation, but candidates must still understand air-conditioning principles, refrigeration, code requirements, load calculations, piping, equipment, plans, and maintenance procedures.

Does purchasing this package guarantee a passing score?

No. The package provides organized reference materials for study and navigation, but examination results depend on the candidate’s preparation, knowledge, and performance.