(A) Section IMC 101.1 Title is amended to read as follows:
These regulations shall be known as the Mechanical Code of the City of Marshalltown, hereinafter referred to as "this code." The City of Marshalltown interprets "NFPA 54 and NFPA 58" as equivalent alternatives for design to meet the intent of the 2021 International Fuel Gas Code.
(B) Section IMC 109.5 Permit fees is amended to read as follows:
Permit fees will be derived from the City of Marshalltown Fee Schedule as adopted.
(C) Section IMC 306.5 Equipment and appliances on roofs or elevated structures is amended to read as follows:
If the tenants of a multiple-tenant building have or are allowed to have, mechanical facilities on or which penetrate the roof, then roof access ladders must be provided for use by all such tenants and their agents and contractors in a manner that does not require accessing space under the control of another tenant.
(D) Section IMC 307.2.4.1 Ductless mini-split system traps is amended to read as follows:
Ductless mini-split equipment that produces condensate shall be installed per the manufacturer's instructions.
(E) Section IMC 603.1 General is amended to read as follows:
An air distribution system shall be designed and installed to supply the required distribution of air. The installation of an air distribution system shall not affect the fire protection requirements specified in the International Building Code. Ducts shall be constructed, braced, reinforced, and installed to provide structural strength and durability. Air plenums and ducts located in floor and wall cavities shall be separated from unconditioned space by construction with insulation to meet energy code requirements. These areas include, but are not limited to, exterior walls, cantilevered floors, and floors above garages.
(Ord. 15071, passed 9-25-2023)