The Ontario Building Code | Scope
6.1.1.1. Scope
(1) The scope of this Part shall be as described in Subsection 1.1.2. of Division A.
(2) Where the method of operation of an existing heating, ventilating orair-conditioning system is altered, the repair or component replacements that change the capacity or extent of safety of the system shall conform to this Code.
In Plain Language
The scope of Part 6 (Heating, Ventilating and Air-Conditioning) is set out in Division A's Subsection 1.1.2, and altering an existing HVAC system's operation triggers specific requirements if the change affects a system's fundamental characteristics.
This is a plain-language summary of the 2012/2017 Ontario Building Code text above, for general understanding only and not a substitute for the Code. Always confirm current requirements against the 2024 edition (O.Reg. 163/24) or a qualified professional before construction.