The 1 Package: All-Inclusive Delaware Master HVACR Restricted Air Conditioning Contractor Exam, Licensing & Business Setup Solution

Prepare for the Delaware Master HVACR Restricted Air Conditioning examination, organize your professional license application, and establish the foundation for your air-conditioning contracting business with one coordinated, all-inclusive solution. The 1 Package combines highlighted and tabbed rental books, one year of online course access, Application Service, business formation support, EIN filing, and contractor compliance guidance.

This package is designed for experienced HVACR professionals pursuing the Delaware Master HVACR Restricted Air Conditioning license. It supports the major stages of the process, including technical study, open-book reference navigation, licensing organization, and business setup.

The Delaware restricted air-conditioning examination evaluates knowledge related to the design, installation, maintenance, repair, fabrication, alteration, and extension of air-conditioning and refrigeration systems. The examination also addresses piping vessels, warm-air heating, boilers, ventilation systems, duct systems, insulation, system sizing, equipment, plan reading, and related components within complete systems.

The package includes the International Mechanical Code, 2018; International Fuel Gas Code, 2018; Modern Refrigeration and Air Conditioning, 22nd Edition; Manual N – Commercial Load Calculation for Small Commercial Buildings, 5th Edition; and Residential Load Calculation – Manual J, 8th Edition. All included rental books are highlighted and tabbed to support organized study and efficient navigation.

Highlighting helps selected definitions, formulas, tables, code provisions, equipment information, and technical concepts stand out during review. Tabs create visible reference points throughout the books, helping candidates move between mechanical requirements, fuel-gas provisions, refrigeration principles, equipment topics, commercial load calculations, and residential load calculations.

The package also includes one year of course access. The online exam-preparation course helps candidates divide the examination into manageable subjects, strengthen technical knowledge, practice calculations, improve reference navigation, and build a consistent study schedule.

Application Service is included to help organize the Delaware licensing application. Business Formation, EIN Filing with the IRS, and Contractor Compliance Guidance are also included, helping customers move from exam preparation toward operating through a properly structured air-conditioning contracting business.

Exam Details

The Delaware Master HVACR Restricted Air Conditioning examination is part of the professional licensing process overseen by the Delaware Board of Plumbing, Heating, Ventilation, Air Conditioning and Refrigeration Examiners. Candidates applying by examination must receive Board approval before registering with the approved testing provider.

The examination contains 95 questions, and candidates are allowed four hours to complete it. Candidates should develop a pacing strategy that leaves sufficient time for direct-answer questions, calculations, plan interpretation, reference searches, and final review.

The examination outline includes General Knowledge, Plan Reading, Systems and Sizing, Piping, Equipment, and Maintenance. Each area requires candidates to combine field experience with technical understanding and efficient use of the reference materials.

General Knowledge includes 22 questions. Candidates should review heat transfer, temperature, pressure, humidity, airflow, refrigeration principles, combustion, electrical fundamentals, tools, safety practices, 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, plan notes, dimensions, equipment locations, and system details.

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

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

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

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

Open Book Test

The Delaware Master HVACR Restricted Air Conditioning examination is an open-book test. Candidates may use authorized printed reference materials during testing under the examination provider’s current rules.

An open-book format does not eliminate the need for focused preparation. The references contain extensive technical information, and candidates cannot depend on researching every question from the beginning. Strong preparation combines trade knowledge, calculation ability, and efficient reference navigation.

The highlighted and tabbed rental books in this package are prepared to support that process. Tabs provide recognizable locations for major chapters, code topics, formulas, equipment subjects, and calculation procedures. Highlighting helps selected information stand out during review and practice.

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

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

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

Manual N supports commercial heating and cooling load calculations for small commercial buildings. Candidates should understand how occupancy, lighting, equipment, ventilation, construction, windows, orientation, and design conditions influence 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 always be read in context. Definitions, exceptions, table notes, equipment conditions, and nearby provisions may affect the correct interpretation. Highlighting and tabs support navigation but do not replace understanding the complete material.

Candidates should review the current testing rules before the examination. Requirements may address permanent tabs, highlighting, handwritten notes, inserts, loose paper, removable markers, photocopies, calculators, and other test-day materials.

Licensing Steps

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

Create an account through Delaware Professional Regulation Online Services and begin the applicable Master HVACR Restricted application in DELPROS. Applications and supporting records are submitted through the state’s online licensing system.

Gather the documentation required for the licensing pathway. This may include employment verification, apprenticeship records, current or previous license verification, certification records, and other supporting information requested by the Board.

Applicants must document qualifying education, apprenticeship, and work experience based on the pathway under which they apply. The Board reviews the submitted records to determine whether the applicant qualifies for examination authorization.

Applicants without an acceptable journeyman certificate may be required to document qualifying supervised experience and complete the applicable Apprenticeship By-Pass Examination section. Restricted-license applicants are evaluated according to the specialty being pursued.

Submit the completed application and all required attachments through DELPROS. The Board must approve the candidate before the official Master HVACR Restricted Air Conditioning examination can be scheduled.

After approval, follow the testing provider’s registration instructions. Review appointment procedures, identification requirements, calculator policies, authorized references, and book-preparation rules before selecting a test date.

Use the one-year online course and highlighted and tabbed rental books to prepare. Complete technical review, plan-reading exercises, load calculations, code-navigation practice, piping study, equipment review, and maintenance questions.

Complete the examination and earn the required passing score. Official results are reported through the examination and licensing process.

Finish any remaining application requirements after passing. Application Service is included to help organize licensing information and supporting documents, but final eligibility and license issuance remain under the authority of the Delaware Board.

State Requirements

Delaware requires professionals providing regulated HVACR services to hold the appropriate license unless a specific exemption applies. A license from another jurisdiction does not automatically authorize HVACR work in Delaware.

A Master HVACR Restricted license permits services only in the specialty identified 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 air-conditioning specialty. Contractors planning to provide services across multiple restricted specialties should pursue the unrestricted Master HVACR license.

The examination description addresses air-conditioning and refrigeration systems, piping vessels, warm-air heating, boilers, ventilation systems, duct systems, insulation, and related components within complete systems, without a horsepower or tonnage limitation.

A Master HVACR Restricted license does not automatically provide authority for 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.

Applicants should submit complete, accurate, and consistent documentation. Missing experience records, incomplete license verification, or conflicting information may delay Board review and examination authorization.

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

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

Delaware HVACR licenses are subject to renewal, continuing education, and professional conduct requirements. A professional HVACR license is separate from the business registrations, tax accounts, insurance, and local approvals required to operate a company.

Reference Books

• Included Book: International Mechanical Code, 2018
  This highlighted and tabbed rental 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 rental code supports study of fuel-gas piping, appliance connections, 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 rental reference provides broad technical coverage of refrigeration, air conditioning, heating, heat pumps, electrical controls, equipment, tools, installation, troubleshooting, maintenance, and service practices.
• Included Book: Manual N – Commercial Load Calculation for Small Commercial Buildings, 5th Edition
  This highlighted and tabbed rental reference supports heating and cooling load calculations for small commercial buildings using construction data, occupancy, lighting, equipment, ventilation, infiltration, climate, and design conditions.
• Included Book: Residential Load Calculation – Manual J, 8th Edition
  This highlighted and tabbed rental 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

Use the one-year course access period to create a consistent preparation schedule. Begin with refrigeration and air-conditioning fundamentals before moving into code requirements, plan reading, load calculations, piping, equipment, and maintenance.

Review heat transfer, pressure-temperature relationships, refrigerant flow, compressors, condensers, evaporators, metering devices, superheat, subcooling, airflow, humidity, and system troubleshooting.

Study mechanical-code subjects such as equipment installation, ventilation, exhaust, duct construction, refrigeration machinery, combustion air, appliance venting, clearances, supports, and equipment-room requirements.

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

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

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

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

Complete timed reference-navigation exercises using every included book. Track which subjects take the longest to locate and repeat those searches during later study sessions.

Business Formation and EIN Filing

The 1 Package includes Business Formation support for an LLC or Corporation. Establishing a legal business entity provides a formal structure for contracts, banking, accounting, insurance, hiring, and future growth.

EIN Filing with the IRS is included. An Employer Identification Number can be used to open business bank accounts, manage federal tax responsibilities, hire employees, complete company forms, and operate the air-conditioning contracting business professionally.

Business owners should maintain separate company financial records, use the correct legal entity name on contracts and invoices, and keep entity registrations and organizational records current.

Contractor Compliance Guidance

Contractor Compliance Guidance helps customers understand the administrative responsibilities connected with operating an air-conditioning contracting business in Delaware. Guidance may involve professional licensing, entity maintenance, business registration, insurance, tax accounts, renewal responsibilities, and operational compliance.

This support helps customers organize the business side of their contracting goals while preparing for the examination and licensing process. Government agencies retain authority over professional licenses, business registrations, tax accounts, and regulatory approvals.

How 1 Exam Prep Helps You Reach Your Goal

1 Exam Prep combines structured online study guidance, highlighted and tabbed rental books, trade-focused review, calculation practice, reference-navigation support, Application Service, and business setup assistance in one all-inclusive solution.

The course helps candidates organize the examination into manageable subjects, including general knowledge, plan reading, systems and sizing, piping, equipment, and maintenance.

The prepared rental books reduce the time required to organize the references. Highlighting helps selected definitions, formulas, tables, and code provisions stand out, while tabs provide visible navigation points for frequently reviewed topics.

One year of course access gives students time to revisit difficult subjects, repeat load calculations, practice code searches, and strengthen weaker areas. Application Service supports licensing organization, while Business Formation, EIN Filing, and Contractor Compliance Guidance support the administrative side of establishing a business.

The package does not guarantee an examination result, license approval, business approval, or financial outcome. It provides organized preparation, application support, and business setup services for customers working toward their Delaware air-conditioning contracting goals.

Frequently Asked Questions

What is included in The 1 Package?

The package includes five highlighted and tabbed rental books, one year of course access, Application Service, LLC or Corporation formation support, EIN Filing, and Contractor Compliance Guidance.

Are all included books highlighted and tabbed?

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

How long does course access last?

The package includes 1 year of course access.

Is Application Service included?

Yes. Application Service is included with this package.

Does the package include business formation and EIN filing?

Yes. LLC or Corporation formation support and EIN Filing with the IRS are included.

What is the total package cost?

The package cost is $2,715, plus a $550 refundable deposit, for a total of $3,265.

When is the deposit refunded?

The $550 deposit is fully refundable when the books are returned in similar condition within one year.

How long should I allow for order processing?

Please allow up to 15 business days for The 1 Package book orders.

Is the examination open book?

Yes. The Delaware Master HVACR Restricted Air Conditioning examination is open book and permits authorized printed references under the current testing rules.

How many questions are on the examination?

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

Does purchasing this package guarantee a license?

No. Examination results, application approval, licensing decisions, and business registrations depend on the customer’s qualifications and the decisions of the applicable agencies.