Tennessee Mechanical Contractor License (CMC)

Important changes in the 2021 IMC include:

• Clothes dryer exhaust terminals required to be at least 3 feet from any opening into a building.
• Polyurethane spray-applied foam on the exterior of ducts in attics and crawl spaces required to meet specific smoke and flame index limits.
• Fire and smoke dampers must be provided with approved access for inspection and maintenance.
• Refrigerant tables updated to include new refrigerants.
• Addition of condensate termination identification markings and discharge restrictions.
• Approved factory-built combination intake/exhaust terminations permitted, relaxing separation requirement.
• 30% reduction in minimum mechanical ventilation for whole-house balanced ventilation systems.
• Continuous operation requirement for manicure and pedicure station exhaust systems.
• Grease duct horizontal cleanout required within 3 feet of a horizontal discharge fan.

Key changes in the 2021 IFGC® include:

• The termination of concealed condensate piping requires marking to indicate if it is the primary drain or the secondary drain.
• Press-connect joints are acceptable for high pressure (over 5 psig) applications indoors.
• Commercial cooking appliances are not allowed within dwelling units.

The 2021 IBC® contains many important changes such as:

• Puzzle rooms (escape rooms) are now defined and regulated as special amusement areas, requiring compliance with Section 411 and special means of egress requirements.
• For the purposes of determining the allowable number of control areas in a building, each portion separated by one or more fire walls is now considered as a separate building.
• In Group E occupancies, enhanced classroom acoustics in compliance with ICC A117.1 are to be provided in all classrooms having of volume of 20,000 cubic feet or less.
• The requirements for metal composite materials and systems (MCM) installed on the exterior walls of Types I, II, III and IV construction were simplified and sprinkler allowances were deleted.
• The use of intermodal shipping containers as buildings is now specifically addressed through provisions intended to supplement existing applicable IBC requirements.
• Automatic sprinkler protection is now required in Group S-2 open parking garages where any fire area exceeds 48,000 square feet.
• The 2017 edition of ICC A117.1 was adopted.
• Parapets of a minimum height are now required for aggregate-surfaced roofs to prevent blow-off.
• Mixed occupancy buildings with assembly spaces are placed in Risk Category III when the total public assembly occupant load is greater than 2500 people.
• The 2021 IBC snow map is updated to match ASCE 7-16 snow maps by adding a reference to ASCE 7 snow tables in states with large case study areas.
• Secondary rain loads are updated to be consistent with ASCE 7.
• Special inspection requirements were added to address the anchorage and connection of mass timber structural elements.
• Installation of firestop, fire-resistant joint systems and perimeter fire barrier systems in residential-use buildings now requires special inspection in Group R fire areas having an occupant load exceeding 250 people.
• Frost protection for egress doors was added to the foundation requirements.
• ACI standards ACI 117 and ITG 7 were added by reference to provide acceptable tolerances for concrete construction.
• Three new types of construction (Types IV-A, IV-B, and IV-C) allow mass timber buildings of taller heights, more stories above grade, and greater allowable areas compared to existing provisions for heavy timber buildings.

Equip your students with the knowledge and skills to maintain and troubleshoot complex heating, air conditioning, and refrigeration systems with REFRIGERATION & AIR CONDITIONING TECHNOLOGY. With content aligning to the latest industry standards, this trusted resource continues to provide leading content and skill-building activities to prep learners for several certifications and exams -- ICE, NATE, HVAC Excellence, RSES, HARDi, and United Association (UA) STAR. This best-selling text offers the hands-on guidance, practical applications, and solid foundation your students need to understand HVAC service and repair, environmental challenges, and their solutions. Focused on sustainable technology, this edition covers technical advances in the industry while helping students develop important soft skills and a deeper understanding of customer relations issues. Memorable examples, more than 260 supporting photos, and unique Service Call features bring concepts to life and help students develop the skills needed for professional success. Available with this text is THE COMPLETE HVAC LAB MANUAL, which features more than 250 lab exercises covering 15 topic areas. See the supplements section for more details.

HVAC Basics for Contractors is an important reference for some Prov Air Conditioning Exams.

The 2010 NFPA 13, Installation of Sprinkler Systems is revised and updated with added criteria based on recent fire testing and studies performed by the Fire Protection Research Foundation. Chapter 20: Special Designs of Storage Protection presents requirements for the protection of three new special storage arrangements, including carton records storage with catwalk access, and high bay records storage. This edition also adopts the SEI/ASCE 7 approach for load calculations and introduces new zone-of-influence tables for Schedule 5 steel pipe, CPVC, and Type M copper tube. An important new method to calculate rack shelf area takes the placement of loads into consideration.

The NASCLA Contractors Guide to Business, Law and Project Management is organized into 3 sections.

Part 1 focuses on business 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 is centered on fundamentals that you will need to know to operate a successful construction business. This section will cover estimating, contract management, scheduling, project management, safety and environmental responsibilities and building good relationships with employees, subcontractors and customers.

Part 3 gives you valuable information for running the administrative function of your business. Financial management, tax basics and lien laws are covered. Effective management of these areas of business is vital and failure to give them proper attention can cause serious problems.

Custom Tab Bundle, please specify which books these tabs should reference at checkout

In October 2019, the Code Council released an independent study comparing model plumbing codes. It found that over a 12-year period, counties using the IPC saved $38 billion in construction costs, emitted 1,000,000 fewer tons of carbon dioxide, saw an additional 166,000 jobs, and saved 880 million feet of pipe. On average, a single-family home could save up to $4,000 in labor, materials and overhead compared to that same home built to other codes.

Important changes in the 2021 IPC include:

• Multiple-user toilet facilities to serve all genders are now permitted.
• Two new methods for relining/rehabilitation of existing sewers are added.
• Accommodations for mounted rooftop solar panels over vent terminals is added.
• CSA B805/ICC 805 Rainwater Harvesting Systems is allowed as an alternative design method.
• Plumbing provisions from ICC A117.1-2017 Standard for Usable and Accessible Buildings and Facilities are now included.

Compact and pocket-sized, this handy reference contains thousands of facts and figures relevant to pipefitters, steamfitters-anyone concerned with layout and installation of pipe.

Modern Refrigeration and Air Conditioning, 22nd Edition is focused on closing the gap from students to technicians with our commitment to top-quality coverage of fundamentals and the latest technology. This classic is an excellent blend of theory, skill development, and service techniques to help you learn how to install and service refrigeration and HVAC systems.

Building on a history of duct construction standards nearly 100 years old, the flagship SMACNA HVAC Duct Construction Standard – Metal & Flexible 4th edition represents the state of the art in the sheet metal duct fabrication and installation requirements. Significant changes for the 4th edition include; flat oval tables for positive/negative pressure applications; spray and aerosolized duct sealants; non-fiberglass duct liner applications; added information on spiral duct fittings; updates to duct hanger requirements; flexible duct hanger spacing and support bracing.

Ugly’s Electrical References, 2023 Edition is the essential on-the-job reference tool for electrical industry professionals.

The 2023 Edition provides the most pertinent, up-to-date information used by electricians, including updated NEC code and table change information; mathematical formulas; NEMA wiring configurations; conduit bending guide; ampacity and conduit fill information; transformer and control circuit wiring diagrams; and conversion tables.

• Reflects changes to the 2023 National Electrical Code (NEC)
• Features expanded coverage of the following topics:
• Full-load currents for 3-phase transformers
• Maximum number of conductors in electrical metallic tubing for trade sizes 5 and 6
• Equipment grounding conductors
• General lighting loads for non-dwelling occupancies

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.

The OSHA 1926 book provides a comprehensive set of the most up-to-date Construction regulations. Utilizing MANCOMM’s signature formatting approach – RegLogic – this edition includes notations for changes within the past year and letters of reference.

This book features:

• 1903 – Inspections, Citations, and Penalties
• Part 1904 – Recording and Reporting Occupational Illnesses and Injuries
• Selected 1910 General Industry Standards
• OSHA Forms 300
• Sharps Injury Log
• This edition also includes Subpart AA - Confined Spaces

The New Fifth Edition of Manual N® details the load calculation procedure that addresses the advances in the commercial construction industry: new materials, methods of assembly, and operational requirements. It provides instruction to help contractors and designers satisfy new, and often conflicting, energy, ventilation, and comfort requirements. The new Manual N is divided into four sections providing both a quick and comprehensive procedure for commercial load calculation.

• Section 1 Abridged Procedure: Basic instructions to perform commercial load calculations, on buildings of three stories or less. Supports a simplified hand calculation.
• Section 2 Advanced Topics: Provides enhanced procedures, capabilities, and sensitivities (requires computer software to process).
• Section 3 Tables: Provides input for the worksheets and determinations needed for the abridged (N5ae) and full (N5) procedures.
• Section 4 Appendices: Provides supporting materials and details on the N5ae and N5 applications...(640 pages)

Manual J 8th Edition is the national ANSI recognized standard for producing HVAC equipment sizing loads for single-family detached homes, small multi-unit structures, condominiums, town houses, and manufactured homes. A proper load calculation, performed in accordance with the Manual J 8th Edition procedure, is required by national building codes and most state and local jurisdictions.