Conditioned Air Contractor Class 2 Unrestricted (2024-11-01)

Low Pressure Boilers is the leading resource for preparing for low pressure boiler operator and facility operating engineer licensing. This textbook provides a comprehensive overview of the latest information on the safe and efficient operation of low pressure steam and hot water boilers, cooling systems, and related equipment. Each chapter is divided into sections to aid comprehension of key concepts. To assist with preparing for a licensing exam, a separate chapter with test-taking tips and a sample exam is included.

Develop the knowledge and skills you need to maintain and troubleshoot today's complex heating, air conditioning, and refrigeration systems with REFRIGERATION AND AIR CONDITIONING TECHNOLOGY, 8th Edition. This practical, easy-to-understand book provides hands-on guidance, practical applications, and the solid foundation you need to fully understand today's HVAC service and repair, its environmental challenges, and their solutions. Focused on sustainable technology in today's HVAC/R industry with an emphasis on new technologies and green awareness, the 8th Edition covers the latest advances in the industry and the all-important soft skills and customer relations issues that impact customer satisfaction and employment success. Memorable examples, more than 260 supporting photos, and unique Service Call features bring concepts to life and help you develop the critical skills you need for success in your future career.

The 2012 INTERNATIONAL FUEL GAS CODE SOFTBOUND VERSION sets forth requirements that address the design and installation of fuel gas systems and gas-fired appliances, based on the most current information and technology available. The requirements are performance-driven, making this an effective tool and valuable addition to a user's code products.

Flip through the 2012 I-Codes series and find frequently used sections fast! You'll be surprised how easy it is to find what you are looking for. These tabs were created by industry experts who carefully identified the most referenced sections in the code.

For the most current mechanical codes that address the design and installation of the most current mechanical systems, use the 2012 INTERNATIONAL MECHANICAL CODE SOFTBOUND VERSION. Designed to provide comprehensive regulations for mechanical systems and equipment, it includes coverage of HVAC, exhaust systems, chimneys and vents, ducts, appliances, boilers, water heaters, refrigerators, hydronic piping, and solar systems. This valuable reference uses prescriptive- and performance- related provisions to establish minimum regulations for a variety of systems.

Flip through the 2012 I-Codes series and find frequently used sections fast! You'll be surprised how easy it is to find what you are looking for. These tabs were created by industry experts who carefully identified the most referenced sections in the code.

• Full 2011 NEC text* Expert commentary with coverage of changes in the 2011 NEC's requirements, including new rules focused on workplace safety* First-time commentary for new articles addressing green technologies, alternate energy, high-voltage installations, and other emerging issues* 500+ full-color photos and illustrations such as schematics, floor plans, and cross-sectional graphics not in the Code* For the first time, vertical rules alert you to Code additions, and change dots signal deletions -- exactly like in the NEC.* Commentary is shaded in blue so it's easily distinguished from mandatory provisions.
• This book is no longer available in print form.
• *Please CLICK HERE to purchase the digital version of this title from the publisher*

Boost your referencing power with self-adhesive Tabs for your 2011 NFPA 70®: National Electrical Code® or the NEC Handbook. Tabs make it easy to access the latest electrical safety information and maximize time on the job.

The ANSI-recognized national standard for residential HVAC duct design will help you design a duct system in less time. The popular and accurate procedure has been revised to include updated and expanded VAV guidance, with detailed examples; impacts of excess length, sag and compression in flexible ducts; and new equivalent length values for flex duct junction boxes. Manual D, from the Air Conditioning Contractors of America (ACCA), provides a single set of ANSI-recognized duct sizing principles and calculations that apply to all duct materials.

Used to determine how much heating/cooling a home needs to stay cool and dry in the summer and warm in the winter. This load calculation process was developed by engineers in the heating and air conditioning industry and has been used for decades to accurately size heating and air-conditioning equipment. After completing this load calculation process, one can choose a properly sized piece of machinery to satisfy the load.

This part of the System Design Manual presents data and examples to guide the engineer in practical design and layout of normal air conditioning piping systems.

This durable two-sided plastic sizing wheel comes with a complete instruction manual for residential and commercial duct-sizing procedures. Designed by Hank Rutkowski.

The NASCLA Contractors Guide to Business, Law and Project Management is organized into three sections. 

Part 1 focuses on planning and starting your business.  This section will help you formulate a business plan, choose a business structure, understand licensing and insurance requirements and gain basic management and marketing skills.

Part 2 Covers fundamentals you will need to know in order to operate a successful construction business. This section covers estimating, contract management, scheduling, project management, safety and environmental responsibilities, and building good relationships with employees, subcontractors, and customers.

Part 3 provides valuable information to assist you in running the administrative functions of your business.  Financial management, tax basics, and lien laws are covered.  Effective management of these areas of business is vital and can cause you serious problems if you do not give them proper attention.

(Plumbers, Conditioned Air, Low Voltage, Electrical and Utility Contractors)

Our OSHA 29 CFR 1926 Construction Regulations book gives you quick, easy access to essential safety guidance whenever you need it. It helps employers and workers identify hazards fast and stay compliant on any jobsite. The 2026 edition features a clear two-color layout, includes all 1926 regulations along with key 1903, 1904, and select 1910 rules, and highlights any regulation changes between editions. Icons make it simple to find OSHA interpretations, and the book also includes OSHA Form 300, the Cancer Policy, and In-Cite references to 1910 standards. Frequently cited standards are placed before their related subparts for even easier navigation.

Ensure your HVAC systems operate at peak efficiency with The Flexible Duct Performance & Installation Standards an essential guide for contractors, technicians, inspectors, and builders who demand accuracy and compliance.

This comprehensive resource delivers clear, industry approved guidelines for the proper selection, installation, and performance of flexible air ducts. It’s designed to help reduce energy loss, improve airflow, and extend the lifespan of HVAC systems by translating complex standards into practical, easy-to-follow instruction.

Inside, you’ll learn proven installation techniques that maximize system performance, understand key performance standards aligned with current regulations, and gain insight into common installation mistakes that can lead to costly issues. With detailed illustrations and real-world guidance, this manual equips you to approach every project with confidence and precision.

Whether you’re an experienced HVAC professional or preparing for certification, this book serves as a trusted reference to help you produce higher quality work, pass inspections more easily, and ensure every system performs as intended.

Build it right. Install it smart. Perform with confidence.