Nevada C-21 Refrigeration and Air Conditioning Contractor License

The 2018 edition of the UMC reached a major milestone as it addresses specific provisions for low flammability refrigerants such as A2L and B2L; which makes it one of the first codes in the industry to address specific provisions for these low Global Warming Potential (GWP) refrigerants. Contributions to the content of this code were made by every segment of the built industry, including such diverse interests as consumers, enforcing authorities, installers/maintainers, labor, manufacturers, research/standards/ testing laboratories, special experts and users.

The UMC provides complete requirements for the installation and maintenance of heating, ventilating, cooling and refrigeration systems, while at the same time allowing latitude for innovations and new technologies. Key changes to the 2018 UMC include:

• New clearance requirements for solid-fuel burning appliances, ducts serving Type I hood exhaust system, and product conveying ducts (Chapter 3)
• New provisions for Type I and Type II exhaust systems and product conveying ducts.
• New sizing provisions for duct systems, duct leakage testing requirements, installations and closure requirements for flexible air ducts, and new provisions for air dispersions systems (Chapter 6)
• New requirements for pressure regulators and electric furnaces (Chapter 9)
• New refrigerant system requirements, such as A2L and B2L low flammability refrigerants; machinery room requirements such as access, openings, detectors, and ventilation systems; and new pressure limiting-device provisions for compressors (Chapter 11)
• New pressure testing requirements for piping and components, expansion tanks, and materials for hydronic systems (Chapter 12)
• New requirements for piping material, overpressure protection and gas piping installation for fuel gas piping systems (Chapter 13)

From carbon monoxide poisoning to the risks of fire and explosion, there are many hazards inherent with the utilization of gaseous fuels. NFPA 54 offers comprehensive provisions for the safe design, installation, operation, maintenance, purging, and inspection of gas piping, equipment, accessories, and appliances supplied with fuel gas.

Updated through January 2023, the 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

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.

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)

The intent of this manual is to equip the reader with the knowledge and skills needed to design, install, operate and maintain the most common types of solar water heating systems. Use this manual for the Florida Solar Contractor test.

Prepared for the Nevada Construction Business and Law Exam as a study guide and open book reference.

The general business and law or “CMS” exam is open book and this book is allowed to be taken with you when you sit for the exam.

The book is organized into 3 sections.

Part 1 focuses on business planning and start up. 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 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 can cause serious problems if you do not give them the proper attention.

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