Except as hereinafter added to, deleted, modified or amended, there is hereby adopted as the Mechanical Code of the City that certain Mechanical Code known as the 2021 State Mechanical Code as adopted in Iowa Administrative Code 165-61 adopting the International Mechanical Code, 2021 Edition, as prepared and published by the International Code Council, which code is hereby specifically incorporated by reference and shall be known as the Hiawatha Mechanical Code. The provisions of said Mechanical Code shall be controlling in the erection, installation, alteration, repair, relocation, replacement, addition to, use, maintenance or removal of heating, ventilation, cooling or refrigerating systems, incinerators or other miscellaneous heat-producing or refrigerating appliances and in all matters covered by said Mechanical Code within the corporate limits of the City.