Ohio Mechanical Code – 2017

The 2017 Ohio Mechanical Code (OMC) is a state-specific adaptation of the 2015 International Mechanical Code (IMC), developed by the Ohio Board of Building Standards (BBS) to regulate the installation, maintenance, and inspection of mechanical systems in buildings throughout Ohio. Effective from November 1, 2017, the OMC ensures that mechanical systems—such as heating, ventilation, air conditioning (HVAC), and refrigeration—are installed and maintained in a manner that protects public health, safety, and welfare.

Key Aspects:

Scope and Application

• Applies to the construction, alteration, movement, enlargement, replacement, repair, equipment, use and occupancy, location, removal, and demolition of mechanical systems within Ohio.
  
• Regulates systems such as heating, ventilation, air conditioning, and refrigeration.
  
• Excludes certain structures such as live/work units located in townhouses complying with specific requirements.

General Regulations

• Materials used shall be installed in strict accordance with the standards under which the materials are accepted and approved.
  
• All mechanical products and materials shall be listed by a third-party certification agency as complying with the referenced standards.
  
• Mechanical systems shall be designed and installed to prevent rodents from entering structures.
  
• Piping shall be protected against external corrosion by a protective sheathing or wrapping or other means that will withstand any reaction from the lime and acid of concrete, cinder, or other corrosive material.

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:

• Update & Adoption
• Alignment with National Standards
• Streamlining & Clarity
• Key Technical Areas

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:

• Ohio Plumbing Code – 2017
• 2018 International Mechanical Code
• 2021 International Building Code