North Carolina State Building Code: Mechanical Code 2018 – Loose Leaf

The 2018 North Carolina State Building Code: Mechanical Code (NCMC 2018) is a comprehensive set of regulations governing the installation and maintenance of heating, ventilation, and air conditioning (HVAC) systems in buildings throughout North Carolina. It is based on the 2015 International Mechanical Code (IMC) with state-specific amendments to address local conditions and requirements.

Key Aspects:

Scope and Application

• Applies to the design, installation, maintenance, and inspection of mechanical systems in buildings. It covers systems such as heating, ventilation, air conditioning, and refrigeration. The code ensures that these systems are safe, efficient, and properly integrated into the building’s design.
  

General Regulations

• Includes provisions for the proper installation and maintenance of mechanical systems, ensuring they operate safely and efficiently. This encompasses aspects such as system access, clearances, and protection of components.
  

Specific Systems and Components

Provides detailed requirements for various mechanical systems and components, including:

• Heating and Cooling Equipment: Specifications for the installation and maintenance of furnaces, boilers, air conditioners, and heat pumps.
• Ventilation Systems: Requirements for natural and mechanical ventilation to ensure adequate indoor air quality.
• Duct Systems: Standards for the design and installation of ductwork, including sizing, materials, and insulation.
• Refrigeration Systems: Guidelines for the safe installation and operation of refrigeration equipment.
• Exhaust Systems: Requirements for the safe removal of air contaminants from buildings.
  

Energy Efficiency and Sustainability

• Aligns with the state’s energy conservation goals by incorporating provisions that promote energy-efficient design and operation of mechanical systems. This includes requirements for system performance, controls, and integration with other building systems.

Highlights:

• Adoption of the 2015 IMC with State Amendments
• Detailed Scope and Administration
• General Mechanical System Requirements
• A2L Refrigerant Guidance (Interpretation)
• Amendments Overview by NC Office of State Fire Marshal

About ICC

International Code Council is a leading organization dedicated to developing a single set of comprehensive, coordinated national model construction codes. To date, 48 U.S. states have adopted various international codes from the International Code Council.

Other Works:

• North Carolina State Building Code: Residential Code 2018 – Loose Leaf
• North Carolina State Building Code: Building Code 2018 – Loose Leaf
• North Carolina State Building Code: Fuel Gas Code 2018 – Loose Leaf