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Code Change No: M2-07/08

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Code Change No: M2-07/08 DOCUMENTATION Code Change No: M2-07/08 Original Proposal Section: 202 Proponent: Bob Eugene, Underwriters Laboratories, Inc. Revise definition as follows: COMBINATION FIRE/SMOKE DAMPER (Supp). A listed device installed in ducts and air transfer openings designed to close automatically upon the detection of heat and resist the passage of flame and smoke. The device is installed to operate automatically, and be controlled by a smoke detection system, and where required, is capable of being positioned from a fire command center. Reason: To provide a consistent definition throughout all the I-codes. The phrase that is added is consistent with the IBC and IMC and is appropriate for the IMC as well considering that the bulk of the smoke control system is installed to the requirements of the IMC. Cost Impact: The code change proposal will not increase the cost of construction. Public Hearing Results Committee Action: Approved as Submitted Committee Reason: The additional phrase makes the definition consistent with the IBC definition. Assembly Action: None Final Hearing Results M2-07/08 AS Code Change No: M3-07/08 Original Proposal Sections: 202 (IFC [M] 602.1) Proponent: Richard Swierczyna, Architectural Energy Corporation, representing the Commercial Kitchen Ventilation Technical Interest Group Revise definition as follows: HOOD (IFC [M] HOOD). An air intake device used to capture by entrapment, impingement, adhesion or similar means, grease, moisture, hot air and similar contaminants before they enter a duct system. Type I. A kitchen hood for collecting and removing grease vapors and smoke. Such hoods are equipped with a fire suppression system. Type II. A general kitchen hood for collecting and removing steam, vapor, heat, and odors and products of combustion. 141 CODE CHANGES RESOURCE COLLECTION ─ INTERNATIONAL MECHANICAL CODE Reason: Clarify definitions of Type I and Type II hoods. The revised definitions are similar to the definitions in ASHRAE Standard 154 Ventilation of Commercial Cooking Processes Cost Impact: The code change proposal will not increase the cost of construction. Public Hearing Results Committee Action: Approved as Modified Modify proposal as follows: HOOD. An air intake device used to capture by entrapment, impingement, adhesion or similar means, grease, moisture, hot air heat and similar contaminants before they enter a duct system. Type I. A kitchen hood for collecting and removing grease vapors and smoke. Such hoods are equipped with a fire suppression system. Type II. A general kitchen hood for collecting and removing steam, vapor, heat, and odors and products of combustion. Committee Reason: This proposal makes the definition consistent with the definition in ASHRAE 154 and further clarifies that Type II hoods must also remove products of combustion. The modification replaces “hot air” with the more correct term “heat” and also puts the terms “vapor” and “odor” back into the definition of Type II hoods because there was no justification offered for removing them from the original language. Assembly Action: None Final Hearing Results M3-07/08 AM Code Change No: M4-07/08 Original Proposal Section: 202 (New) Proponent: Guy McMann, Jefferson County, CO, representing the Colorado Association of Plumbing and Mechanical Officials (CAPMO) Add new definition as follows: INTERLOCK. A device actuated by another device with which it is directly associated, to govern succeeding operations of the same or allied devices. A circuit in which a given action cannot occur until after one or more other actions have taken place. Reason: The term “INTERLOCK” has been tossed around rather loosely in the code. This definition is needed so the user can understand what an interlock really means as there is no such definition in the NEC. This definition is from the Modern Dictionary of Electronics, 7th edition. Cost Impact: The code change proposal will not increase the cost of construction. Public Hearing Results Committee Action: Approved as Submitted Committee Reason: This is an undefined term in the code that needs to be defined. The user will have a better understanding of what the interlocking of two devices involves. Assembly Action: None Final Hearing Results M4-07/08 AS 142 DOCUMENTATION Code Change No: M5-07/08 Original Proposal Section 202 Proponent: Richard Swierczyna, Architectural Energy Corporation, representing the Commercial Kitchen Ventilation Technical Interest Group Revise definition as follows: SECTION 202 GENERAL DEFINITIONS LIGHT-DUTY COOKING APPLIANCE (Supp). Light-duty cooking appliances include gas and electric ovens (including standard, bake, roasting, revolving, retherm, convection, combination convection/steamer, countertop conveyorized baking/finishing, conveyor, deck or deck-style pizza, and pastry), electric and gas steam-jacketed kettles, electric and gas pasta cookers, electric and gas compartment steamers (both pressure and atmospheric)and electric and gas cheese melters. Reason: Clarify the differentiation between a lower input deck oven and a high input and effluent production of a conveyor pizza oven. Added countertop conveyorized baking/finishing oven due to the recent increased use in sandwich and c-stores. Cost Impact: The code change proposal will not increase the cost of construction. Public Hearing Results Committee Action: Approved as Submitted Committee Reason: The term “conveyor oven” appears in both this definition and that of Medium Duty Cooking Appliances and is more appropriate for Medium Duty. That term is deleted and the new term “countertop conveyorized baking/finishing ovens” is added to include cooking appliances that are prevalent in sandwich shops. Assembly Action: None Final Hearing Results M5-07/08 AS Code Change No: M8-07/08 Original Proposal Sections 304.3, 304.4 (New) Proponent: Guy McMann, Jefferson County, CO, representing the Colorado Association of Plumbing and Mechanical Officials (CAPMO) 1. Revise as follows: 304.3 Elevation of ignition source. Equipment and appliances having an ignition source and located in hazardous locations and public garages, private garages, repair garages, automotive motor-fuel-dispensing facilities and parking garages shall be elevated such that the source of ignition is not less than 18 inches (457 mm) above the floor surface 143 CODE CHANGES RESOURCE COLLECTION ─ INTERNATIONAL MECHANICAL CODE on which the equipment or appliance rests. Such equipment and appliances shall not be installed in Group H occupancies or control areas where open use, handling or dispensing of combustible, flammable or explosive materials occurs. For the purpose of this section, rooms or spaces that are not part of the living space of a dwelling unit and that communicate directly with a private garage through openings shall be considered to be part of the private garage. 2. Add new text as follows: 304.4 Prohibited equipment and appliance location. Equipment and appliances having an ignition source shall not be installed in Group H occupancies or control areas where open use, handling or dispensing of combustible, flammable or explosive materials occur. (Renumber subsequent sections) Reason: This language is deserving of its own section as it’s very specific in nature. Removing it permits everything in 304.3 to be legally installed in those occupancies. Isolating this group makes sense because certain appliances “cannot” be installed in this group H. Cost Impact: The code change proposal will not increase the cost of construction. Public Hearing Results Committee Action: Approved as Submitted Committee Reason: The language that was relocated to a new section is unrelated to the elevation of appliances which is the subject of the rest of the section. It should be in its own section. Assembly Action: None Final Hearing Results M8-07/08 AS Code Change No: M9-07/08 Original Proposal Sections: 304.9; IRC M1305.1.4.1, M1308.3; IFGC 305.7 Proponent: Guy McMann, Jefferson County, CO, representing the Colorado Association of Plumbing and Mechanical Officials (CAPMO) THESE PROPOSALS ARE ON THE AGENDA OF THE IMC, THE IRC MECHANICAL AND THE IFGC CODE DEVELOPMENT COMMITTEES AS 3 SEPARATE CODE CHANGES. SEE THE TENTATIVE HEARING ORDERS FOR THESE COMMITTEES. PART I – IMC Revise as follows: 304.9 Clearances from grade. Equipment and appliances installed at grade level shall be supported on a level concrete slab or other approved material extending not less than 3 inches (76 mm) above adjoining grade or shall be suspended a minimum of not less than 6 inches (152 mm) above adjoining grade. Such support shall be in accordance with the manufacturer's installation instructions. Reason: This change will make the IMC consistent with the IRC and a proposed change to the IFGC. Cost Impact: The code change proposal will not increase the cost of construction. 144 DOCUMENTATION PART II – IRC 1. Revise as follows: M1305.1.4.1 Ground clearance. Equipment and appliances supported from the ground shall be level and firmly supported on a concrete slab or other approved material extending not less than 3 inches ( 76 mm ) above the adjoining ground. Such support shall be in accordance with the manufacturer's installation instructions. Appliances suspended from the floor shall have a clearance of not less than 6 inches (152 mm) from the ground. 2. Delete without substitution: M1308.3 Foundations and supports. Foundations and supports for outdoor mechanical systems shall be raised at least 3 inches (76 mm) above the finished grade, and shall also conform to the manufacturer’s installation instructions. Reason: The two IRC Mechanical sections are addressing the same subject matter. It's more efficient to combine the two and have just one section covering the topic. The modification to IMC 304.9 and IFGC 305.7 are consistent language with that of M1305.1.4.1. Cost Impact: The code change proposal will not increase the cost of construction. PART III – IFGC Revise as follows: 305.7 Clearances from grade. Equipment and appliances installed at grade level shall be supported on a level concrete slab or other approved material extending not less than 3-inches (76 mm) above adjoining grade or shall be suspended a minimum of not less than 6 inches (152 mm) above adjoining grade.
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