Connecticut Limited Heating, Hot Water and Steam Journeyperson (S-6) Highlighted & Tabbed Books Allowed into Exam Package

Prepare for the Connecticut Limited Heating, Hot Water and Steam Journeyperson (S-6) examination with the approved trade references organized for open-book study and exam-room use. This package includes the International Mechanical Code, 2021 and Modern Refrigeration and Air Conditioning, 22nd Edition, with both books professionally highlighted and permanently tabbed.

The Connecticut S-6 examination evaluates knowledge related to limited hot-water and steam heating work. Candidates should understand piping systems, boilers, heating equipment, controls, insulation, maintenance, testing, and general trade practices. They must also be able to locate mechanical requirements, technical explanations, definitions, diagrams, equipment information, and tables within a timed testing environment.

The International Mechanical Code, 2021 supports preparation for code-based questions involving boilers, mechanical equipment, piping, insulation, installation requirements, controls, testing, and system safety. Modern Refrigeration and Air Conditioning, 22nd Edition supports technical review involving heating principles, system components, equipment operation, controls, maintenance, testing, and troubleshooting.

Both books arrive highlighted and permanently tabbed to provide an organized starting point for study. Important chapters, definitions, mechanical provisions, piping subjects, equipment topics, technical tables, controls, maintenance information, and commonly reviewed sections are marked to help candidates move through the references more efficiently.

Highlighted and tabbed books can reduce the time spent locating major subjects, but they do not replace preparation. Candidates should review every tab, read the highlighted material, learn how each reference is organized, and practice locating complete sections under timed conditions.

Studying with the books allowed into the S-6 examination helps candidates connect practical field knowledge with formal code language and technical terminology. A journeyperson candidate may understand how to install, service, or repair a heating system, but the written examination may require the candidate to identify a specific requirement, interpret a technical statement, locate a definition, or recognize the function of a system component.

The S-6 trade examination is open book, making familiarity with the approved references an important part of preparation. Candidates who regularly use the books before exam day can develop a repeatable process for identifying the subject, selecting the correct reference, finding the supporting material, and evaluating the answer choices.

This package contains only the two highlighted and tabbed books approved for use during the S-6 trade examination. It does not include supplemental hydronic heating books, system-design manuals, pipefitting handbooks, online course access, book rental, Application Service, or a refundable deposit.

Please allow up to 15 business days for tabbed and highlighted books allowed into exam package orders.

What You Get

This focused package is designed for candidates who want the approved S-6 examination references prepared for organized open-book study. Both books may be used during preparation and brought into the examination center under the applicable testing rules.

Exam Details

The Connecticut Limited Heating, Hot Water and Steam Journeyperson (S-6) examination contains 40 questions. Candidates are allowed 1½ hours to complete the examination, and a minimum score of 70 percent is required to pass.

The S-6 examination content outline includes the following subject areas:

• Insulation: 1 question
• General Knowledge: 4 questions
• Controls: 5 questions
• Equipment: 8 questions
• Piping: 17 questions
• Maintenance and Testing: 5 questions

Piping is the largest examination category, accounting for 17 of the 40 questions. Candidates should devote substantial preparation time to piping materials, fittings, joining methods, supports, valves, insulation, expansion, circulation, pressure, flow, system arrangements, and the movement of heated water, steam, and condensate through heating systems.

Equipment is the second-largest category. Preparation should include boilers, pumps, circulators, expansion tanks, air-control devices, heat exchangers, terminal units, control valves, safety devices, and other components used in hot-water and steam heating installations.

The controls category may involve thermostats, aquastats, pressure controls, relays, operating limits, safety controls, control valves, and equipment operating sequences. Candidates should understand how these devices start, stop, regulate, and protect heating equipment.

Maintenance and testing questions may address system startup, equipment inspection, pressure testing, temperature measurements, preventive maintenance, troubleshooting, and recognition of unsafe or inefficient operating conditions.

General knowledge questions may involve accepted heating practices, system operation, piping principles, equipment relationships, and journeyperson-level trade understanding. Insulation questions may address heat loss, material application, system efficiency, and protection of piping or equipment.

With 90 minutes available for 40 questions, candidates have an average of approximately two minutes and fifteen seconds per question. This time includes reading the question, identifying the subject, selecting the appropriate reference, locating the supporting information, and choosing an answer.

A practical preparation schedule should reflect the examination weighting. Piping and equipment together account for most of the questions, while controls, maintenance, testing, general knowledge, and insulation complete the remaining content.

Open Book Test

The Connecticut S-6 Limited Heating, Hot Water and Steam Journeyperson examination is an open-book test. Candidates may bring approved references into the testing center under the applicable examination rules.

The International Mechanical Code, 2021 and Modern Refrigeration and Air Conditioning, 22nd Edition are the approved S-6 trade references included in this package. Both books arrive highlighted and permanently tabbed for organized exam preparation and reference navigation.

Approved references may be highlighted, underlined, annotated, and indexed before the examination. Permanent tabs may be used to identify chapters, definitions, technical tables, piping subjects, equipment topics, controls, maintenance information, and testing material.

Temporary tabs, removable notes, loose papers, and inserted pages are not permitted. Candidates may not write in the books during the examination, and examination questions or answers may not be recorded inside the approved references.

The included highlighting draws attention to useful code provisions and technical material. The permanent tabs help candidates move between major chapters and subjects. Candidates should review every marked section before test day so the books become familiar tools rather than unfamiliar exam-room resources.

A practical open-book strategy begins by identifying the type of question. A code-based question involving boilers, mechanical equipment, piping, insulation, installation requirements, controls, testing, or system safety may lead to the International Mechanical Code.

A technical question involving heating principles, equipment operation, system components, controls, maintenance, testing, or troubleshooting may be supported by Modern Refrigeration and Air Conditioning.

Candidates should use the permanent tabs together with the table of contents, index, chapter headings, definitions, diagrams, and technical tables. Not every examination topic can be represented by one tab, so candidates should also become familiar with effective index terms.

Reading the complete supporting section is essential. Definitions, exceptions, notes, table headings, and surrounding paragraphs may affect the correct answer. Candidates should avoid selecting a response based only on an isolated highlighted phrase.

Timed reference practice can help candidates determine how quickly they can identify a subject, choose the correct book, locate the supporting material, and evaluate the answer choices. It also helps candidates learn when to continue searching and when to move to another question.

Licensing Steps

1. Review the S-6 license scope. Confirm that the Connecticut Limited Heating, Hot Water and Steam Journeyperson classification matches the work you plan to perform.
2. Complete the applicable training pathway. Satisfy Connecticut’s registered apprenticeship or accepted equivalent experience and training requirements.
3. Gather qualification records. Prepare apprenticeship documentation, classroom records, employment verification, and other materials required for the application pathway.
4. Complete the journeyperson application. Submit the applicable application and supporting information to the Connecticut Department of Consumer Protection.
5. Receive examination eligibility. The state reviews the applicant’s qualifications and determines whether the candidate may proceed to testing.
6. Prepare for the S-6 examination. Study the highlighted and tabbed books, review the examination outline, and practice locating information under timed conditions.
7. Schedule the examination. Follow the testing provider’s registration and scheduling procedures after eligibility is granted.
8. Complete the S-6 trade examination. Take the 40-question examination within the 1½-hour testing period.
9. Complete license-issuance requirements. Submit any remaining documents, examination results, or licensing fees according to Connecticut’s instructions.

Passing the examination does not automatically issue the S-6 license. Applicants must complete Connecticut’s training, application, examination, documentation, and license-issuance requirements.

State Requirements

The Connecticut S-6 credential is a limited journeyperson license associated with qualifying hot-water and steam heating work. The classification addresses heating equipment, related piping, controls, insulation, maintenance, testing, and system operation within the limits established for the credential.

The S-6 license is a journeyperson credential and does not provide independent contracting authority. The license holder must perform authorized work while employed by a contractor licensed for the applicable heating work.

Applicants must complete the applicable training and experience pathway accepted by the Connecticut Department of Consumer Protection. Supporting records may be required to document classroom instruction, supervised on-the-job training, apprenticeship completion, employment, or equivalent qualifications.

Applicants with education, experience, or an occupational license obtained outside Connecticut should follow the applicable state process for equivalent training, experience, or an equivalent credential. Connecticut determines whether submitted qualifications satisfy its licensing requirements.

The S-6 classification is limited in scope. It does not provide unlimited authority to perform every type of heating, cooling, refrigeration, fuel gas, oil burner, piping, or air-conditioning work. License holders must remain within the work authorized by the credential.

Holding an S-6 license does not replace other occupational credentials that may be required for work outside the approved scope. Journeypersons should perform authorized services only while employed by an appropriately licensed contractor.

Candidates should review the S-6 classification before applying. Connecticut offers multiple heating, cooling, piping, refrigeration, fuel, and related occupational license types, and the selected credential should match the work the applicant intends to perform.

Reference Books

• International Mechanical Code, 2021
  This approved exam-room code covers mechanical systems, boilers, equipment installation, piping, insulation, controls, testing, and related safety requirements. The included copy is highlighted and permanently tabbed to support organized code review and efficient navigation.
• Modern Refrigeration and Air Conditioning, 22nd Edition
  This approved technical reference supports preparation involving heating principles, equipment, controls, system operation, inspection, maintenance, testing, and troubleshooting. The included copy is highlighted and permanently tabbed.

The books should be used throughout preparation rather than opened for the first time on examination day. Repeated study helps candidates learn chapter locations, useful index terms, diagram placement, technical-table organization, and the relationship between the examination subjects and the reference material.

The included highlighting and tabbing provide an organized framework, but candidates should still learn how to search beyond the marked sections. Examination questions may use terminology that requires the table of contents, index, definitions, or cross-references.

Exam Room Approved Books

The following highlighted and tabbed references are included for preparation and use during the Connecticut S-6 trade examination:

• International Mechanical Code, 2021
  Use this reference for code-based questions involving boilers, mechanical equipment, piping, insulation, installation requirements, controls, testing, and system safety.
• Modern Refrigeration and Air Conditioning, 22nd Edition
  Use this reference for technical questions involving heating principles, equipment, controls, system components, operation, maintenance, testing, and troubleshooting.

This package is limited to the two approved S-6 trade exam-room references. Supplemental books such as hydronic heating manuals, system-design manuals, and pipefitting handbooks are not included.

Candidates are responsible for bringing their approved references to the testing center. The examination location does not provide each candidate with a personal set of books.

The included books use permanent tabs rather than removable markers. Candidates should inspect the books before exam day and avoid adding loose notes, inserted sheets, temporary tabs, or other materials that may conflict with testing-center requirements.

The references should be treated as active study tools. Candidates should review the tabs, follow the highlighted provisions, use the indexes, and practice locating related material that may appear before or after the marked sections.

Test Information and Study Materials

A productive S-6 study plan should begin with piping because it accounts for 17 of the 40 examination questions. Review piping materials, fittings, joining methods, supports, valves, insulation, expansion, circulation, flow, pressure, and system arrangements.

Candidates should understand the differences between hot-water and steam systems. Study how heated water, steam, and condensate move through their respective systems, how circulation occurs, and how piping arrangements affect performance.

Equipment accounts for eight examination questions. Review boilers, pumps, circulators, expansion tanks, air separators, heat exchangers, terminal units, control valves, safety devices, and other components used in hot-water and steam heating systems.

Controls and maintenance each account for five questions. Candidates should understand thermostats, aquastats, pressure controls, relays, operating limits, safety devices, valves, equipment sequences, inspection procedures, testing, preventive maintenance, and troubleshooting.

Use the International Mechanical Code to review formal mechanical requirements. Pay attention to definitions, tables, exceptions, equipment provisions, piping requirements, installation rules, and testing procedures.

Use Modern Refrigeration and Air Conditioning to reinforce heating principles, equipment functions, controls, operation, maintenance, and troubleshooting. Review diagrams, component relationships, and operating sequences instead of relying only on isolated definitions.

During timed practice, identify the likely reference before opening a book. Use the permanent tabs to reach a major subject, then use the index, table of contents, chapter headings, diagrams, and technical tables to locate the precise supporting information.

Review missed practice questions carefully. Find the applicable code provision or technical explanation, determine why the original response was incorrect, and study related concepts that may appear in a differently worded question.

Candidates should also practice managing difficult questions. Spending too much time on one reference search can reduce the time available for the rest of the examination. A planned approach can help candidates complete all questions before returning to items that require additional research.

Studying in shorter, consistent sessions can be more productive than attempting to review both books at once. Candidates can focus on one examination category, locate the related material in both references, and then complete timed review before moving to the next category.

How 1 Exam Prep Helps You Reach Your Goal

1 Exam Prep helps Connecticut S-6 candidates begin their preparation with the approved trade books organized for open-book study. Both references are highlighted and permanently tabbed to create a practical navigation system for major exam subjects.

Trade-focused preparation helps candidates connect each examination category with the appropriate reference. The International Mechanical Code supports code-based mechanical requirements, while Modern Refrigeration and Air Conditioning reinforces heating principles, equipment, controls, operation, maintenance, testing, and troubleshooting.

The highlighting draws attention to useful provisions and technical material. Permanent tabs help candidates move between major chapters, definitions, tables, piping subjects, equipment topics, controls, and maintenance information.

Reference-navigation practice helps candidates learn how each book is organized. Familiarity with indexes, chapter layouts, definitions, diagrams, technical tables, and cross-references can reduce unnecessary searching during the 1½-hour examination.

Practice-oriented preparation also helps identify weaker subjects before test day. Candidates can direct additional study toward piping, equipment, controls, insulation, maintenance, testing, hot-water systems, or steam-heating principles.

No highlighted and tabbed book package can guarantee examination eligibility, a passing result, application approval, or license issuance. Consistent study, qualifying training, familiarity with the approved references, and effective time management remain important parts of the Connecticut S-6 licensing process.

FAQ Section

What books are included in this package?

The package includes the International Mechanical Code, 2021 and Modern Refrigeration and Air Conditioning, 22nd Edition.

Are both books highlighted and tabbed?

Yes. Both included books are highlighted and permanently tabbed before delivery.

How long should I allow for the order?

Please allow up to 15 business days for tabbed and highlighted books allowed into exam package orders.

Are both books allowed into the S-6 examination?

Yes. The International Mechanical Code, 2021 and Modern Refrigeration and Air Conditioning, 22nd Edition are the approved S-6 trade references included for exam-room use.

Is the Connecticut S-6 examination open book?

Yes. Candidates may bring approved references into the testing center under the applicable examination rules.

How many questions are on the S-6 examination?

The S-6 examination contains 40 questions. Candidates have 1½ hours to complete the test and must earn a minimum score of 70 percent.

What is the largest examination category?

Piping is the largest category, accounting for 17 of the 40 questions. Equipment is the second-largest category with eight questions.

Does this package include supplemental study books?

No. This package is limited to the two highlighted and tabbed books approved for S-6 trade exam-room use.

Does this package include an online course?

No. This product includes highlighted and tabbed examination books only and does not include online course access.

Is this a rental package?

No. This product is not identified as a rental package and does not include a refundable book deposit.

Does this package include Application Service?

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

Does the S-6 license allow independent contracting?

No. The S-6 credential is a journeyperson license. The holder must perform authorized work while employed by an appropriately licensed contractor.

Does purchasing this package guarantee a license?

No. Applicants must meet Connecticut’s qualification requirements, receive examination eligibility, pass the examination, complete the licensing process, and receive state approval.