Arizona Solar Plumbing, Liquid Systems Only Residential / Commercial Contractor (CR-78) Highlighted & Tabbed Book Package

The Arizona Solar Plumbing, Liquid Systems Only Residential / Commercial Contractor (CR-78) Highlighted & Tabbed Book Package is designed for contractors preparing for the Arizona CR-78 solar plumbing trade exam with the supplied reference materials organized for open-book exam preparation. This package includes OSHA construction safety, plumbing code, mechanical code, plumbing and pipefitting mathematics, pipe trades reference material, and solar water and pool heating installation guidance, professionally highlighted and permanently tabbed to support focused study, faster lookup, and stronger reference navigation during timed practice.

The Arizona CR-78 Solar Plumbing, Liquid Systems Only classification is a residential and commercial contractor classification connected to liquid-based solar plumbing systems. Candidates preparing for this classification should be ready to study solar water heating, solar pool heating, piping systems, pumps, valves, heat transfer concepts, system layout, plumbing code, mechanical code, pipe sizing, pipe materials, fittings, calculations, jobsite safety, and installation procedures related to solar liquid systems. This classification focuses on liquid system work and should not be treated as an electrical solar photovoltaic classification.

Solar plumbing work requires a practical understanding of how liquid moves through a system, how heat is collected and transferred, and how components are selected and installed. A contractor working in this specialty must understand piping, valves, pumps, collectors, storage, insulation, pressure, temperature, flow, drainage, system layout, freeze protection concepts where applicable, and the safety requirements that apply on roofs, around equipment, and on active construction sites.

Because the CR-78 classification covers both residential and commercial work, candidates should be prepared to think across different project types. Residential work may include solar water heating and solar pool heating for homes and similar properties. Commercial work may involve larger piping layouts, equipment coordination, roof-mounted collectors, storage components, and more detailed mechanical and plumbing coordination. In both settings, the contractor must understand the liquid-system side of solar plumbing rather than photovoltaic electrical power generation.

This highlighted and tabbed book package helps turn the required references into a practical study system. Highlighting draws attention to important sections, while permanent tabs help candidates move through the books more efficiently. For an open-book contractor exam, owning the books is only the starting point. Candidates also need to understand where major topics are located and how to find information quickly under a time limit.

This package is a strong fit for qualifying party candidates, residential and commercial solar plumbing contractors, solar water heating installers, solar pool heating contractors, plumbing contractors, pipe trades professionals, hydronic system installers, construction supervisors, business owners, and experienced tradespeople preparing for Arizona contractor licensing. It supports trade review, solar liquid-system study, plumbing code navigation, mechanical code awareness, pipe math practice, pipe trades lookup, OSHA safety preparation, and open-book exam preparation for the Arizona CR-78 Solar Plumbing, Liquid Systems Only Residential / Commercial Contractor classification.

What You Get

• Code of Federal Regulations - 29 CFR Part 1926 (OSHA)
  Professionally highlighted and tabbed construction safety reference used for OSHA-related exam preparation and jobsite safety review.
• International Plumbing Code, 2018
  Professionally highlighted and tabbed plumbing code reference covering plumbing system requirements, pipe materials, joints, fittings, valves, potable water concepts, sanitary drainage concepts, testing, and plumbing code navigation.
• International Mechanical Code, 2018
  Professionally highlighted and tabbed mechanical code reference covering mechanical system requirements, equipment installation concepts, ventilation, combustion air where applicable, hydronic and related mechanical system provisions, and code navigation.
• Mathematics for Plumbers and Pipefitters, 8th edition
  Professionally highlighted and tabbed math reference supporting calculations involving pipe measurements, offsets, angles, areas, volumes, ratios, conversions, pressures, and trade-related problem solving.
• IPT’s Pipe Trades Handbook, Robert A. Lee, 2016
  Professionally highlighted and tabbed pipe trades reference covering pipe, fittings, valves, flanges, threads, measurements, symbols, formulas, materials, and quick-reference pipe trade information.
• Solar Water and Pool Heating Design and Installation Manual
  Professionally highlighted and tabbed solar thermal reference covering solar water heating, solar pool heating, collectors, piping, pumps, valves, storage, system layout, heat transfer, and installation practices for liquid-based solar systems.
• Highlighted Study Organization
  Important sections are marked to help guide review and support faster lookup during open-book exam practice.
• Permanent Tabs
  Tabs are prepared to support organized study and exam-room reference navigation where the specific reference is allowed by testing rules.

Exam Details

The Arizona CR-78 Solar Plumbing, Liquid Systems Only trade exam is part of the Arizona Registrar of Contractors examination program. The exam is connected to the residential and commercial solar plumbing liquid-systems classification and is designed to evaluate a candidate’s knowledge of solar water heating, solar pool heating, piping systems, plumbing code concepts, mechanical code concepts, pipe trade calculations, system components, installation practices, and OSHA construction safety.

Candidates preparing for the CR-78 exam should focus on the supplied reference list and the major work areas tied to liquid-based solar plumbing. The preparation process should include solar collectors, solar water heating systems, solar pool heating systems, piping layouts, pumps, valves, fittings, insulation, storage, heat transfer, flow, pressure, temperature, plumbing code navigation, mechanical code navigation, pipe calculations, and jobsite safety.

Solar water heating preparation should include the basic purpose of a solar thermal system, how liquid circulates through the system, how collectors absorb heat, how heated liquid transfers energy, and how system components work together. Candidates should understand common installation considerations such as collector placement, piping routes, insulation, support, protection, system layout, valves, pumps, tanks, and maintenance access.

Solar pool heating preparation should include pool heating system layout, collector arrays, flow through collectors, piping arrangement, valves, bypasses, pumps, check valves, drainage, temperature control concepts, and proper connection to pool circulation equipment where applicable. Candidates should understand that solar pool heating systems use liquid circulation and depend on proper flow, pressure, and component selection.

Plumbing code preparation should include pipe materials, joints, fittings, valves, potable water concepts, cross-connection awareness, testing concepts, equipment connections, supports, protection, and code navigation. The International Plumbing Code, 2018 supports the plumbing side of liquid solar system work and helps candidates understand how code requirements are organized.

Mechanical code preparation should include mechanical equipment installation concepts, hydronic system awareness, equipment access, ventilation and combustion air concepts where applicable, equipment support, materials, and mechanical code navigation. The International Mechanical Code, 2018 helps candidates review mechanical-system requirements that may apply to solar plumbing systems and related equipment.

Mathematics and pipe trades preparation should include pipe measurements, offsets, angles, formulas, conversions, pressure, volume, area, temperature, flow concepts, fitting takeoffs, pipe dimensions, and use of quick-reference tables. Contractors in liquid-system work must be comfortable with measurements and trade math because layout, sizing, estimating, and installation decisions often depend on accurate calculations.

Safety questions may involve OSHA construction standards, roof access, fall protection, ladders, scaffolds, material handling, pipe handling, hot surfaces, equipment handling, power tools, trenching where applicable, personal protective equipment, and jobsite hazard recognition. Solar plumbing work may take place on roofs, near mechanical equipment, in equipment rooms, near pools, and on active residential or commercial jobsites, so OSHA safety preparation is essential.

Open Book Test

The Arizona CR-78 Solar Plumbing, Liquid Systems Only exam is an open-book test for approved references allowed by the testing provider. Candidates are responsible for bringing their own allowed reference materials to the examination center. Approved references may be highlighted, underlined, annotated, and indexed before the examination session begins.

During the exam, candidates may not write, highlight, underline, or index inside the reference books. Any markings, notes, highlighting, underlining, or indexing must be completed before the exam begins. Candidates should arrive with their allowed books already organized and ready to use.

Reference materials may be tabbed or indexed with permanent tabs only. Permanent tabs are tabs that would tear the page if removed. Temporary removable tabs, including Post-it style tabs or other removable markers, are not allowed and must be removed before the exam begins.

Candidates may use a silent, nonprinting, non-programmable calculator in the examination center. Loose papers and additional attached papers are not allowed with approved references. Downloaded references may be brought into the testing center only when they are properly bound, such as spiral bound or placed in a binder after being hole-punched.

Open book does not mean the exam is simple. Solar plumbing liquid-system questions can require quick movement between plumbing code, mechanical code, pipe trades tables, math references, solar water and pool heating material, and OSHA safety rules. Highlighting and tabs help candidates move through the books with purpose instead of searching without a plan.

Licensing Steps

Arizona contractor licensing is handled by the Arizona Registrar of Contractors. A candidate pursuing the CR-78 Solar Plumbing, Liquid Systems Only Residential / Commercial Contractor classification should begin by reviewing the classification scope, confirming the applicable examination requirements, and preparing for the required trade examination.

The person who satisfies the examination requirement is commonly the qualifying party for the license. The qualifying party is connected to the contractor license application and is responsible for demonstrating knowledge in the classification. Applicants should follow the Arizona Registrar of Contractors process for current application forms, business information, bonding, financial responsibility items, and any other licensing materials required for the application.

A practical preparation path begins with gathering the references, reviewing the CR-78 classification scope, and building a study schedule around the major subject areas. Candidates should divide study time across solar water heating, solar pool heating, liquid piping systems, pumps, valves, collectors, storage, pipe materials, pipe fittings, trade math, plumbing code, mechanical code, and OSHA safety.

After preparing, candidates schedule and complete the required examination through the testing provider. Passing the trade exam is an important licensing step, but passing the exam does not automatically issue a contractor license. The license application must still be submitted to the Arizona Registrar of Contractors and reviewed according to state licensing requirements.

Candidates should keep the full licensing process in mind while preparing. The exam is one part of the broader path to licensure. Business setup, application documents, bonding, compliance responsibilities, and state review may also be part of the process depending on the applicant and business structure.

State Requirements

The Arizona CR-78 Solar Plumbing, Liquid Systems Only classification is the residential/commercial contractor classification for liquid-based solar plumbing work. It is intended for contractors preparing to perform solar plumbing work involving liquid systems across both residential and commercial settings. Contractors preparing for commercial-only solar plumbing work should review the C-78 classification, while contractors preparing for residential-only solar plumbing work should review the residential classification.

Solar plumbing liquid-system work may include installation, alteration, repair, and related work involving liquid-based solar water heating or solar pool heating systems within the classification scope. This work may involve collectors, piping, pumps, valves, storage components, pipe insulation, system supports, fittings, connections, equipment coordination, and system layout.

The CR-78 classification should be understood as a liquid-system solar plumbing classification, not a general electrical solar photovoltaic classification. Candidates should focus preparation on the movement, heating, control, and installation of liquid systems rather than photovoltaic electrical power generation.

Residential solar plumbing projects may involve solar water heating, solar pool heating, roof-mounted collectors, piping, pumps, valves, storage tanks, plumbing connections, and coordination with existing plumbing or pool equipment. Commercial solar plumbing projects may involve larger piping layouts, roof-mounted collectors, equipment rooms, storage components, mechanical coordination, plumbing connections, support systems, access requirements, safety planning, and coordination with building owners, general contractors, mechanical contractors, plumbing contractors, and inspectors.

Liquid solar systems require attention to component compatibility, pressure, temperature, flow, insulation, support, drainage, maintenance access, and safe installation. Proper installation helps protect system performance and reduces the risk of leaks, inefficient operation, damaged components, or unsafe jobsite conditions.

Reference Books

• Code of Federal Regulations - 29 CFR Part 1926 (OSHA)
  This construction safety reference supports preparation for OSHA-related questions involving fall protection, ladders, scaffolds, personal protective equipment, roof access, tools, equipment, material handling, pipe handling, and safe construction practices.
• International Plumbing Code, 2018
  This plumbing code reference supports study in plumbing system requirements, pipe materials, joints, fittings, valves, potable water concepts, sanitary drainage concepts, testing, equipment connections, and plumbing code navigation.
• International Mechanical Code, 2018
  This mechanical code reference supports study in mechanical system requirements, equipment installation, hydronic system concepts, ventilation and combustion air concepts where applicable, equipment support, access, and mechanical code navigation.
• Mathematics for Plumbers and Pipefitters, 8th edition
  This math reference supports study in pipe measurements, offsets, angles, area, volume, ratios, conversions, formulas, pressure, and trade-related calculations used in plumbing and pipefitting work.
• IPT’s Pipe Trades Handbook, Robert A. Lee, 2016
  This pipe trades reference supports study in pipe, fittings, valves, flanges, threads, dimensions, symbols, formulas, materials, measurements, and quick-reference information used in piping work.
• Solar Water and Pool Heating Design and Installation Manual
  This solar thermal reference supports study in solar water heating, solar pool heating, collectors, piping, pumps, valves, storage, circulation, heat transfer, system layout, and installation practices for liquid-based solar systems.

Exam Room Approved Books

The following books are included in this highlighted and tabbed book package for Arizona CR-78 Solar Plumbing, Liquid Systems Only Residential / Commercial Contractor exam preparation:

• Code of Federal Regulations - 29 CFR Part 1926 (OSHA)
  Construction safety reference for OSHA-related exam questions and solar plumbing jobsite safety topics.
• International Plumbing Code, 2018
  Plumbing code reference for pipe materials, joints, fittings, valves, potable water concepts, testing, equipment connections, and plumbing code navigation.
• International Mechanical Code, 2018
  Mechanical code reference for equipment installation, mechanical system requirements, hydronic system concepts, access, support, and code navigation.
• Mathematics for Plumbers and Pipefitters, 8th edition
  Math reference for pipe measurements, offsets, angles, conversions, formulas, pressure, volume, and trade calculations.
• IPT’s Pipe Trades Handbook, Robert A. Lee, 2016
  Pipe trades reference for pipe, fittings, valves, flanges, threads, dimensions, symbols, formulas, and quick-reference pipe trade data.
• Solar Water and Pool Heating Design and Installation Manual
  Solar thermal reference for solar water heating, solar pool heating, collectors, piping, pumps, valves, storage, heat transfer, and liquid-system installation practices.

Approved references may be highlighted, underlined, annotated, and indexed before the examination session. References may not be written in during the exam. Permanent tabs are allowed. Temporary removable tabs are not allowed. Candidates should avoid loose papers, removable notes, or extra attached pages with the references.

Test Information and Study Materials

The Arizona CR-78 exam requires a focused solar plumbing, liquid-system, code, pipe math, pipe trades, and safety study plan. Candidates should begin with the classification scope, then connect each major subject area to the books most likely to support that topic. This creates a more efficient study process than reading every reference without direction.

Solar liquid-system study should include collector types, system layout, piping, pumps, valves, storage, insulation, flow, pressure, heat transfer, temperature control concepts, drainage, maintenance access, and installation sequencing. The Solar Water and Pool Heating Design and Installation Manual is the central trade reference for solar water and pool heating design and installation concepts.

Plumbing code study should include pipe materials, fittings, joints, valves, potable water concepts, equipment connections, testing, supports, protection, and code navigation. The International Plumbing Code, 2018 helps candidates understand how plumbing requirements are organized and how they relate to solar plumbing work.

Mechanical code study should include equipment installation, hydronic concepts, equipment access, supports, mechanical system coordination, ventilation and combustion air concepts where applicable, and code navigation. The International Mechanical Code, 2018 helps candidates review mechanical requirements that may be involved with solar water heating and related liquid systems.

Pipe math study should include fractions, decimals, measurements, offsets, right triangles, angles, area, volume, pressure, conversions, and formulas. The Mathematics for Plumbers and Pipefitters, 8th edition supports calculation practice that can help with layout, estimating, and trade problem solving.

Pipe trades study should include pipe sizes, pipe schedules, fittings, valves, flanges, threads, symbols, formulas, materials, and quick-reference table use. IPT’s Pipe Trades Handbook is useful for fast lookup and should be studied as a practical reference rather than only as a reading assignment.

Safety should be part of every study schedule. Solar plumbing work can involve roof access, ladders, fall hazards, piping, pumps, equipment handling, power tools, hot surfaces, stored water, pressurized systems, pool equipment areas, material handling, and active residential or commercial jobsites. Candidates should become familiar with OSHA 29 CFR Part 1926 and practice locating safety topics quickly.

The highlighted and tabbed format helps candidates build a practical study routine. Review every tab, read the highlighted material, and practice locating related sections. The goal is to make the books familiar enough that a question about solar water heating, solar pool heating, piping, pumps, valves, plumbing code, mechanical code, pipe math, or OSHA safety points you toward the right reference quickly.

How 1 Exam Prep Helps You Reach Your Goal

1 Exam Prep helps contractor candidates prepare with organized study tools built around real exam needs. For the Arizona Solar Plumbing, Liquid Systems Only Residential / Commercial Contractor (CR-78) exam, this highlighted and tabbed book package gives you the supplied references in a format designed for practical study and open-book navigation.

The highlighting helps draw attention to important sections inside the books. The permanent tabs help candidates move through the references more quickly. Together, they create a study structure that supports review, repetition, and faster lookup during timed practice.

1 Exam Prep’s approach supports trade-focused review, solar water heating study, solar pool heating preparation, plumbing code navigation, mechanical code awareness, pipe math practice, pipe trades lookup, OSHA safety preparation, reference familiarity, and confidence-building study habits. The goal is to help candidates build a clear routine: review the classification scope, study the references, learn the tab system, practice timed lookup, and enter the exam with a stronger command of the materials.

This package does not replace preparation, but it can make preparation more efficient. Instead of beginning with plain books and creating a system from scratch, candidates receive references that are already highlighted and tabbed. That structure gives each study session a clear starting point and helps reduce the confusion that can come with open-book exams.

For residential and commercial solar plumbing contractors, time matters. Organized references can help reduce setup work, support focused study, and make exam practice less stressful. When you understand liquid-system solar plumbing topics and know where to look in the books, the open-book format becomes more manageable.

Who is this book package for?

This package is for candidates preparing for the Arizona Solar Plumbing, Liquid Systems Only Residential / Commercial Contractor (CR-78) trade exam. It is designed for qualifying party candidates, residential and commercial solar plumbing contractors, solar water heating installers, solar pool heating contractors, plumbing contractors, pipe trades professionals, hydronic system installers, construction supervisors, and business owners preparing for Arizona contractor licensing.

What work is covered by the CR-78 classification?

The CR-78 classification is for residential and commercial solar plumbing liquid-system work. Candidates should review the Arizona classification scope before applying and make sure the license matches the solar plumbing work they plan to contract, advertise, supervise, and perform.

Is the Arizona CR-78 solar plumbing exam open book?

Yes. The Arizona CR-78 Solar Plumbing, Liquid Systems Only exam is open book for approved references allowed by the testing provider. Candidates may bring allowed references into the testing center when the books comply with rules for highlighting, annotations, indexing, tabs, and loose materials.

Are the books highlighted and tabbed?

Yes. The included books are professionally highlighted and permanently tabbed to support study, reference lookup, and open-book exam preparation.

Can I use temporary tabs in the exam room?

No. Temporary removable tabs, including Post-it style tabs, are not allowed. References may be tabbed or indexed with permanent tabs only.

Which books are included in this package?

This package includes Code of Federal Regulations - 29 CFR Part 1926 (OSHA), International Plumbing Code, 2018, International Mechanical Code, 2018, Mathematics for Plumbers and Pipefitters, 8th edition, IPT’s Pipe Trades Handbook, and Solar Water and Pool Heating Design and Installation Manual.

What topics should I study for the CR-78 exam?

Candidates should study solar water heating, solar pool heating, liquid piping systems, collectors, pumps, valves, storage, heat transfer, pipe fittings, pipe math, plumbing code, mechanical code, and OSHA construction safety.

Is this package for residential or commercial solar plumbing?

This package is for the Arizona CR-78 Solar Plumbing, Liquid Systems Only Residential / Commercial Contractor classification. It is intended for candidates preparing for the dual residential and commercial solar plumbing liquid-system scope.

Is this the same as a solar photovoltaic electrical license?

No. This package is for the Arizona CR-78 Solar Plumbing, Liquid Systems Only Residential / Commercial Contractor classification. It focuses on liquid-based solar plumbing systems, not photovoltaic electrical power generation.

Does this package guarantee that I will pass?

No. This package is a study and reference-navigation tool. Exam results depend on preparation, trade knowledge, study time, test-taking habits, and the candidate’s ability to use the references effectively.