• This chapter provides the performance provisions for the building mechanical system(s). It addresses the installation and functions of HVAC, refrigeration and piped services. The provisions of this chapter focus on the performance of the equipment versus issues related to indoor air quality. Chapter 10 provides more guidance on indoor air quality and climate.

    The ventilation section contains performance requirements for habitable and concealed spaces. The need for combustion air and disposal of contaminated air are also covered. These issues are prescriptive IMC issues that interface with the prescriptive IBC. It was believed that placing these items within a single group title would better demonstrate how the current codes are formatted.


    The International Mechanical Code is the prescriptive acceptable method related to the objectives of Chapter 11 of this document.