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Prepare with confidence and pass your Connecticut Limited Warm Air, Air Conditioning and Refrigeration System Journeyperson (D-2) Exam with our expertly organized Highlighted & Tabbed Book Package—designed specifically for Connecticut’s open-book HVAC and refrigeration licensing exam format. This complete package includes the essential references commonly used for the exam, professionally highlighted and pre-tabbed to help you quickly locate important information, improve testing efficiency, and maximize your performance on exam day.
Whether you work in residential or commercial HVAC systems, refrigeration service, ductwork installation, fuel gas systems, or mechanical code compliance, this package provides the critical technical references and practical industry knowledge needed to succeed both on the exam and in the field.
Every reference in this package is professionally highlighted and pre-tabbed for fast navigation during the exam.
Comprehensive mechanical code reference covering:
HVAC system installation requirements
Ventilation standards
Exhaust and duct systems
Refrigeration system regulations
Mechanical equipment installation standards
Combustion air requirements
Residential and commercial mechanical code compliance
Critical fuel gas installation and safety code covering:
Fuel gas piping systems
Gas appliance installation requirements
Venting systems and combustion air
Gas pressure regulations
Safety and inspection standards
Residential and commercial fuel gas compliance
Comprehensive HVAC/R technical reference covering:
Refrigeration cycle fundamentals
Air conditioning system operation
Heating system technologies
HVAC troubleshooting and diagnostics
Refrigerant handling procedures
Electrical controls and components
Commercial and residential HVAC applications
Industry-standard duct sizing tool covering:
Duct sizing calculations
Airflow design
Friction loss calculations
Velocity and pressure measurements
HVAC duct system efficiency
Professional duct construction reference covering:
Metal duct fabrication standards
Flexible duct installation requirements
Duct reinforcement and sealing methods
Residential and commercial duct construction
HVAC airflow and system performance standards
LP gas safety and installation code covering:
Propane gas systems
LP gas storage and handling
Installation safety requirements
Fuel gas equipment standards
Inspection and compliance procedures
All books in this package are professionally highlighted and pre-tabbed to help you quickly locate important code sections, formulas, tables, and technical references during the exam.
Our tabbing system is specifically designed to improve navigation speed and reduce time spent searching through materials during testing.
Connecticut journeyperson licensing exams are designed to test your ability to quickly locate and apply HVAC, refrigeration, and fuel gas code information.
Our professionally designed highlighting and tabbing system helps you:
Navigate mechanical and fuel gas codes faster
Locate HVAC references and technical data quickly
Improve speed and accuracy during testing
Reduce wasted time searching through books
Stay organized and focused throughout the exam
These references help build real-world HVAC and refrigeration knowledge by covering:
Residential and commercial HVAC systems
Refrigeration system operation and troubleshooting
Mechanical code compliance
Fuel gas safety standards
Duct sizing and airflow calculations
HVAC installation best practices
This package supports the scope of work covered under the Connecticut Limited Warm Air, Air Conditioning and Refrigeration System Journeyperson (D-2) License, including:
HVAC system installation and service
Air conditioning and refrigeration systems
Heating system maintenance and repair
Fuel gas appliance installation
Mechanical ventilation systems
Ductwork fabrication and installation
Refrigeration troubleshooting and diagnostics
Mechanical code compliance and inspections
Individuals applying for the Connecticut D-2 Journeyperson License
HVAC installation and service technicians
Refrigeration system professionals
Mechanical apprentices and trainees
Residential and commercial HVAC specialists
Individuals preparing for the Connecticut journeyperson licensing exam
Technicians looking for a faster and more organized exam preparation system
Passing the Connecticut Limited Warm Air, Air Conditioning and Refrigeration System Journeyperson (D-2) Exam starts with having the right references—and knowing how to use them efficiently.
With professionally highlighted and tabbed books, you’ll spend less time searching and more time answering questions confidently.
Get your Connecticut Limited Warm Air, Air Conditioning and Refrigeration System Journeyperson (D-2) Highlighted & Tabbed Book Package today and take the next step toward becoming a licensed HVAC and refrigeration professional in Connecticut.