Item # 1.01 Comment Seq # 1 UMC SUBMITTER: UMC Technical Committee Proposal

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1 Item # 1.01 Comment Seq # 1 UMC SUBMITTER: UMC Technical Committee Proposal Revise text as follows: Alternate Materials and Methods of Construction Equivalency. Nothing in this code is intended to prevent the use of alternate materials, systems, methods or devices of equivalent or superior quality, strength, fire resistance effectiveness, durability, and safety over those prescribed by this code. Technical documentation shall be submitted to the Authority Having Jurisdiction to demonstrate equivalency. The Authority Having Jurisdiction shall have the authority to approve or disapprove the system, method or device when determined by the Authority Having Jurisdiction to be equivalent or superior. When the code change for the 2003 passed to get rid of all the permissive language of may to shall the language took away the Authority Having Jurisdiction s ability to not disapprove various methods, materials or devices. The way it is worded now the Authority Having Jurisdiction SHALL accept any of the above if it is listed by any recognized testing agency. This wording will correlate with Section of the Uniform Plumbing Code. COMMITTEE ACTION: Accept as Submitted A PUBLIC COMMENT(S) WAS SUBMITTED FOR REVIEW AND CONSIDERATION. PUBLIC COMMENT (ASSEMBLY ACTION): Submitter: Leonard Ramiocotti, City of Reno, NV Request to reject the code change proposal by this public comment. Contrary to the substantiation, nothing in the current language limits the ability to not disapprove a method. Not disapprove is a double negative that simply means approve. Current code language expressly allows the Authority Having Jurisdiction ( AHJ ) to approve or disapprove and alternate material or method. The proposed language is ambiguous and inadvertently makes approval of alternate material mandatory rather than discretionary upon the submission of any claim of equivalency. By requiring approval, the proposed code language may be interpreted to require jurisdictions to be testing grounds for new methods and methods. Local jurisdictions should be allowed to determine for themselves if they want to be beta testers for new products. The proposed code-language appears to shift the burden of proof to the AHJ to rebut claims of equivalency even for unknown products that have not been field tested anywhere. This may lead to lawsuits over whether local jurisdictions have met their burden to rebut claims of equivalency. AHJs who may have doubts as to a proposal s equivalency, but don t have the resources or expertise to fully evaluate the proposal or design an appropriate test may feel compelled to err toward approval rather than disproval. The current mandatory code language oversteps the role of model codes by improperly restricting the AHJ s 1

2 authority to disprove alternatives based upon other governmental policy reasons such as energy efficiency, water efficiency or access issues. The current code language is stating that the AHJ shall have the authority to approve or disapprove an alternate material or a method that was recommended by the UMC Non-Specific Code Language Task Group for the 2006 edition of the UMC. Item # 2 Comment Seq # 2 UMC and SUBMITTER: Martin Cooper Central California Chapter IAPMO Revise text as follows: Alternate Materials and Methods of Construction Equivalency. Nothing in this code is intended to prevent the use of alternate materials, systems, methods, or devices of equivalent or superior quality, strength, fire resistance, effectiveness, durability, and safety over those prescribed by this code that meet the requirements of this section. Any alternate material, system, method, or device approved for use shall comply with the intent of this code and shall provide an equivalent or superior level of quality, strength, effectiveness, fire resistance, durability and safety to that prescribed in this code. Technical documentation shall be submitted to the Authority Having Jurisdiction to demonstrate equivalency. The Authority Having Jurisdiction shall have the authority to approve or disapprove the system, method, or device for the intended purpose. Any approval of an alternate material, system, method, or device shall be at the discretion of the Authority Having Jurisdiction Intent. However, tthe exercise of this discretionary approval by the Authority Having Jurisdiction shall have no effect beyond the jurisdictional boundaries of said Authority Having Jurisdiction. Any alternate material or method of construction so approved shall not be considered as conforming to the requirements and/or intent of this code for any purpose other than that granted by the Authority Having Jurisdiction. Revisions to the alternate material and alternative engineered design provisions to clarify that approval is discretionary, to clarify the requirement to comply with the intent of the code, to remove vague and ambiguous language, and to ensure consistency between UPC and UMC code language Current Code language is unclear as to whether alternate materials and methods of construction must comply with the intent of the code. The 2006 UMC inadvertently removed the express requirement that alternate materials and methods must comply with the intent of the code. However, a reference to this requirement remains in the last sentence of UMC section The requirement to comply with the intent of the code is also contained in the Alternative Engineered Design provisions of UPC section The proposed amendment clarifies this issue. The proposed amendment also creates consistency in the codes by harmonizing the alternate approval code-language found in the UPC and UMC. The proposed changes also remove repetitive and unnecessary language. COMMITTEE ACTION: Reject 2

3 COMMITTEE STATEMENT: Based on committee action taken on Committee Proposal Item A PUBLIC COMMENT(S) WAS SUBMITTED FOR REVIEW AND CONSIDERATION. PUBLIC COMMENT (ASSEMBLY ACTION): Submitter: Martin Cooper, IAPMO Central CA Ct. Request to accept the code change proposal as submitted by this public comment. Proposed amendment clarifies the discretionary nature of the approval and harmonizes the language with the proposed changes in the UPC. Proposed amendment clarifies that alternate materials and methods of construction must comply with the intent of the code. The 2006 UMC inadvertently removed the long-standing, express requirement that alternate materials and methods must comply with the intent of the code. However, a reference to this requirement remains in the last sentence of the UMC section The requirements to comply with the intent of the code is also contained in the Alternative Engineered Design provisions of UPC section The proposed amendment clarifies this issue. The proposed amendment also removes repetitive and unnecessary language. Item # 4.01 Comment Seq # 3 UMC , SUBMITTER: UMC Technical Committee Proposal Add new text as follows: Bonding Jumper. A reliable conductor to ensure the required electrical conductivity between metal parts required to be electrically connected. [NFPA 70] Grounding Electrode. A device that establishes an electrical connection to the earth. Gas piping systems installed inside buildings have demonstrated a propensity to become energized from nearby lightning strikes. Conventional bonding of gas piping through the equipment grounding conductor has proven inadequate (in these circumstances) to prevent arcing between the gas piping and other nearby electrically conductive systems. CSST manufacturers collectively report dozens of damaged systems caused by improper or inadequate bonding resulting in fire damage or loss of property. Therefore, modifications are proposed to allow alternative methods for direct bonding of gas piping to the grounding system to insure a minimum threshold of protection from all threats (including indirect lightning strikes) that are likely to energize the piping. Current bonding of gas piping to the equipment grounding conductor will continue 3

4 to be permitted. Similar language has been submitted to the NEC (National Electrical Code) for the 2008 cycle. The proposed text is consistent with CSST systems manufacturers recommendation. COMMITTEE ACTION: Accept as Submitted A PUBLIC COMMENT(S) WAS SUBMITTED FOR REVIEW AND CONSIDERATION. PUBLIC COMMENT: Submitter: Ted Lemoff, NFPA Request to accept the code change proposal as modified by this public comment Bonding Jumper A reliable conductor to ensure the required electrical conductivity between metal parts required to be electrically connected. [NFPA 70:100.1] CSST An acronym for corrugated stainless steel tubing Grounding Electrode A device that establishes an electrical conducting object through which a direct connection to the earth is established. [NFPA 70:100.1] CSST correlates with revision to section (A) Grounding Electrode is revised text extracted from NFPA 54 that was revised in the 2008 edition. The definition is revised by using the definition in the National Electrical Code. As this is an electrical term, the NEC definition is used to avoid any potential conflicts. Item # 8 Comment Seq # 4 UMC 2009 TIA UMC , 206.0, 208.0, , 604.5, 608.1, SUBMITTER: John Ingargiola FEMA Mitigation Add new text as follows: D Design Flood Elevation. The elevation of the design flood, including wave height, relative to the datum specified on the community s legally designated flood hazard map F Flood Hazard Area. The greater of the following two areas: 1. The area within a floodplain subject to a 1 percent or greater chance of flooding in any given year. 2. The area designated as a flood hazard area on a community s flood hazard map, or otherwise legally designated. 4

5 Flood Hazard Area Subject to High Velocity Wave Action. Area within the flood hazard area which is subject to high velocity wave action, and shown on a Flood Insurance Rate Map or other flood hazard map as Zone V, VO, VE or V Location Protection Against Damage. (Make existing text a subsection with title; remainder unchanged) Protection Against Flood Damage. For buildings located in flood hazard areas, heating, ventilating, air-conditioning, refrigeration, miscellaneous heatproducing, and energy-utilizing equipment and appliances shall be elevated at or above the design flood elevation. Exception: Equipment and appliances are permitted to be located below the design flood elevation provided that they are designed and installed to prevent water from entering or accumulating within the components and to resist hydrostatic and hydrodynamic loads and stresses, including the effects of buoyancy, during the occurrence of flooding to the design flood elevation in compliance with the flood-resistant construction requirements of the building code Walls below buildings in flood hazard areas subject to high velocity wave action. In flood hazard areas subject to high velocity wave action, equipment and appliances, including piping, shall not be mounted on or penetrate walls intended to break away under flood loads Air Exhaust and Intake Openings. Outside air exhaust openings and air intake openings shall be located at or above the design flood elevation Protection Against Flood Damage. In flood hazard areas, ducts shall be located above the design flood elevation or shall be designed and constructed to prevent water from entering or accumulating within the ducts during floods up to the design flood elevation.if the ducts are located below the design flood elevation, the ducts shall be capable of resisting hydrostatic and hydrodynamic loads and stresses, including the effects of buoyancy, during the occurrence of flooding to the design flood elevation The use of under-floor space shall be limited to dwelling units not more than two stories in height. Except for the floor immediately above the under-floor plenum, supply ducts shall be provided extending from the plenum to registers on other floor levels. Exception: In flood hazard areas, under-floor spaces shall not be used as supply plenums unless the flood opening requirements in the building code are satisfied In flood hazard areas tanks shall be elevated to or above the design flood elevation or they shall be designed, constructed, installed and anchored to resist all flood-related and other loads during the design flood, or lesser floods, without release of contents into floodwaters or infiltration by floodwaters into the contents. The code change provides consistency with the regulations of the National Flood Insurance Program (NFIP) and the flood resistant provisions of ASCE 24, which is referenced by the NFPA 5000 and the International Building Code. In particular, the NFIP regulations require that service systems and equipment be elevated above the design flood elevation, but also provide an option to elevating. The alternative is set forth in reg- 5

6 ulation at 44 CFR 60.3(a)(3)(iii) and (iv), and requires that buildings and structures be constructed with methods and practices that minimize flood damages and, specifically, that electrical, heating, ventilation, plumbing and air conditioning equipment and other service facilities be designed and/or located so as to prevent water from entering or accumulating within the components during conditions of flooding. Local jurisdictions that have been identified as subject to flooding as indicated on maps prepared for the National Flood Insurance Program (NFIP) are required to regulate development in flood hazard areas in order to qualify for certain forms of federal disaster assistance and for their citizens to be able to purchase federal flood insurance. To protect citizens and their property, it is important that the codes that govern construction include provisions to minimize damage and exposure to flooding. In addition, many local jurisdictions participate in the NFIP s Community Rating System (CRS). The CRS offers discounts on federal flood insurance premiums in communities that administer floodplain management programs that exceed the NFIP minimum requirements. The U.S. Department of Homeland Security/FEMA has determined that the proposed changes to the UMC will result in consistency with the NFIP regulations. Because of the multi-hazard benefits that accrue from administration of building codes, especially codes that include flood-resistant provisions, communities that adopt the UMC and other NFIP-consistent codes will qualify for additional points under the CRS. COMMITTEE ACTION: Accept as Submitted A PUBLIC COMMENT(S) WAS SUBMITTED FOR REVIEW AND CONSIDERATION. PUBLIC COMMENT: Submitter: David Delaquila, AHRI Request to reject the code change proposal by this public comment. AHRI disagrees with the proposed code change and urges the Committee to reverse its action to accept as submitted. AHRI is unaware of any type of residential heating equipment, or associated components, that are designed to meet the exception that would prevent water from entering the device or the equipment. In addition, current product standards do not contain testing requirements that would provide a mechanism for equipment and components to meet such a requirement. It would most likely take many years before equipment could be available on the market that would meet such a requirement. Residential heating appliances need to have access doors to allow for servicing and maintenance of the equipment, which would make this proposal extremely impractical. As such, being unable to meet the exception the equipment would need to be elevated as proposed and in many cases the installation would become cost prohibitive. In addition, there are no requirements that accompany this proposal that indicates how the equipment should be elevated and how it should be securely and safely mounted in its elevated position. Although well intended, the proposal does not go far enough to ensure for the safe and proper installation of the equipment as it would be elevated. This proposal is impractical for any residential heating appliances to meet and is unenforceable. 6

7 Item # 9 Comment Seq # 5 UMC , Excess Flow Valve SUBMITTER: Sidney Cavanaugh Cavanaugh Consulting Add new text as follows: EXCESS FLOW VALVE - A valve designed to close when the fuel gas passing through exceeds a prescribed flow rate. A needed definition duplicating same definition in the UPC for devices used in fuel gas systems and applications covered by both the plumbing and mechanical codes. COMMITTEE ACTION: Accept as Submitted A PUBLIC COMMENT(S) WAS SUBMITTED FOR REVIEW AND CONSIDERATION. PUBLIC COMMENT 1: Submitter: Ted Lemoff, NFPA Request to accept the code change proposal as modified by this public comment EXCESS FLOW VALVE (EFV) - A valve designed to close activate when the fuel gas passing through it exceeds a prescribed flow rate. This comment proposes a revision consistent with NFPA The definition is revised to recognize that excess flow valves, of the type used for gas piping systems, do not close completely. They allow a small bypass flow, which is used to reopen the valve. PUBLIC COMMENT 2: Submitter: Bryan Popp, Dormont Manufacturing Co Request to accept the code change proposal as modified by this public comment. Excess Flow Valve A valve designed to close when the fuel gas passing through exceeds a prescribed flow rate. Bypass Excess Flow. EXCESS FLOW VALVE (EFV) A valve installed in a fuel gas piping system to close when the rate of fuel gas through the device exceeds a set limit. 7

8 EXCESS FLOW VALVE BYPASS (EFVB) Excess flow valve designed to reduce the flow of fuel gas after the device is alarmed to a set limit and to reset automatically after the pressure in psi is equalized. EXCESS FLOW VALVE NON-BYPASS (EFVNB) Excess flow valve designed to prevent any flow of fuel gas after the device is alarmed and it has to be reset manually. The committee adopted a definition that can be inaccurate, misleading and insufficient to adequately describe these devices and the concepts associated with excess flow valves. This comment improves the proposed language of the standard. Item # 13 Comment Seq # 6 UMC Group A, B, E, F, H, I, M, R, S, and U SUBMITTER: John Taecker IAPMO Correlation Task Group, Chairman The following was recommend by the Correlation Task Group. (See Correlation Task Group Report Item 7) Delete all occupancy classifications from Section (Group A, B, E, F, H, I, M, R, S, and U) including their sub-divisions in their entirety from the UMC and amend the definition of Occupancy Classification as follows: OCCUPANCY CLASSIFICATION Classifications are defined in the Building Code. For the purpose of this code certain occupancies are defined as follows: Group A Occupancies Group A Occupancies include the use of a building or structure, or a portion thereof,for the gathering together of fifty (50) or more persons for purposes such as civic, social, or religious functions, recreation, education or instruction, food or drink consumption, or awaiting transportation. A room or space used for assembly purposes by less than fifty (50) persons and accessory to another occupancy shall be included as a part of that major occupancy. Assembly occupancies shall include the following: Division 1. A building or portion of a building having an assembly room with an occupant load of 1,000 or more and a legitimate stage. Division 2. A building or portion of a building having an assembly room with an occupant load of less than 1,000 and a legitimate stage. Division 2.1. A building or portion of a building having an assembly room with an occupant load of 300 or more without a legitimate stage, including such buildings used for educational purposes and not classed as a Group B or E Occupancy. Division 3. A building or portion of a building having an assembly room with an occupant load of less than 300 without a legitimate stage, including such buildings used for educational purposes and not classed as a Group B or E Occupancy. 8

9 Division 4. Stadiums, reviewing stands, and amusement park structures not included within other Group A Occupancies. Specific and general requirements for grandstands, bleachers, and reviewing stands are in the Building Code. Exception: Amusement buildings, or portions thereof, that are without walls or a roof and constructed to prevent the accumulation of smoke in assembly areas. Group B Occupancies Group B Occupancies shall include buildings, structures, or portions thereof for office, professional, or service-type transactions that are not classified as Group H Occupancies. Such occupancies include occupancies for the storage of records and accounts and eating and drinking establishments with an occupant load of less than fifty (50). Group E Occupancies Division 1. Any building used for educational purposes through the 12th grade by fifty (50) or more persons for more than twelve (12) hours per week or four (4) hours in any one day. Division 2. Any building used for educational purposes through the 12th grade by less than fifty (50 persons for more than twelve (12) hours per week or four (4) hours in any one day. Division 3. Any building or portion thereof used for day-care purposes for more than six (6) persons. Group F Occupancies Group F Occupancies shall include the use of a building or structure, or a portion thereof, for assembling, disassembling, fabricating, finishing, manufacturing, packaging, repair, or processing operations that are not classified as Group H Occupancies. Division 1. Moderate-hazard factory and industrial occupancies shall include factory and industrial uses that are not classified as Group F, Division 2 Occupancies. Division 2. Low-hazard factory and industrial occupancies shall include facilities producing noncombustible or nonexplosive materials that, during finishing, packing, or processing, do not involve a significant fire hazard. Group H Occupancies Group H Occupancies shall include buildings or structures, or portions thereof, that involve the manufacturing, processing, generation, or storage of materials that constitute a high fire, explosion, or health hazard. For definitions, identification and control of hazardous materials and pesticides, and the display of nonflammable solid and nonflammable or noncombustible liquid hazardous materials in Group B, F, M, or S Occupancies, see the Fire Code. Division 1. Occupancies with a quantity of material in the building in excess of those listed in the Building Code, that present a high explosion hazard. Division 2. Occupancies where combustible dust is manufactured, used, or generated in such a manner that concentrations and conditions create a fire or explosion potential. Occupancies with a quantity of material in the building in excess of those listed in the Building Code that present a moderate explosion hazard or a hazard from accelerated burning. Division 3. Occupancies where flammable solids, other than combustible dust, are manufactured, used or generated. 9

10 Division 4. Repair garages not classified as Group S, Division 3 Occupancies. Division 5. Aircraft repair hangars and heliports not classified as Group S, Division 5 Occupancies. Division 6. Semiconductor fabrication facilities and comparable research and development areas in that hazardous production materials (HPM) are used and the aggregate quantity of materials is in excess of those listed in the Building Code. Division 7. Occupancies having quantities of materials in excess of those listed in the Building Code that are health hazards. Group I Occupancies Division 1.1. Nurseries for the full-time care of children under the age of six (each accommodating more than five children). Hospitals, sanitariums, nursing homes with nonambulatory patients, and similar buildings (each accommodating more than five (5) patients). Division 1.2. Health care centers for ambulatory patients receiving outpatient medical care that may render the patient incapable of unassisted self-preservation (each tenant space accommodating more than five (5) such patients). Division 2. Nursing homes for ambulatory patients and homes for children six years of age or over (each accommodating more than five patients or children). Division 3. Mental hospitals, mental sanitariums, jails, prisons, reformatories, and buildings where personal liberties of inmates are similarly restrained. Group M Occupancies Group M Occupancies shall include buildings, structures, or portions thereof, used for the display and sale of merchandise, and involving stocks of goods, wares, or merchandise incidental to such purposes and accessible to the public. Group R Occupancies Division 1. Hotels and apartment houses. Congregate residences (each accommodating more than ten 10) persons). Division 2. Not used. Division 3. Dwellings and lodging houses. Congregate residences (each accommodating ten (10 persons or less). Group S Occupancies Group S Occupancies shall include the use of a building or structure, or a portion thereof, for storage not classified as a hazardous occupancy. Division 1. Moderate -hazard storage occupancies shall include buildings or portions of buildings used for storage of combustible materials that are not classified as Group S, Division 2 or Group H Occupancies. Division 2. Low-hazard storage occupancies shall include buildings or structures, or portions thereof used for storage of noncombustible materials such as products on wood pallets or in paper cartons with or without 10

11 single-thickness divisions, or in paper wrappings, and shall include ice plants, power plants, and pumping plants. Division 3. Division 3 Occupancies shall include repair garages where work is limited to exchange of parts and maintenance requiring no open flame or welding, motor vehicle fuel -dispensing stations, and parking garages not classed as Group S, Division 4 open parking garages or Group U private garages. Division 4. Open parking garages. Division 5. Aircraft hangars where work is limited to exchange of parts and maintenance requiring no open flame or welding, and helistops. Group U Occupancies Division 1. Private garages, carports, sheds, and agricultural buildings. Division 2. Fences six (6) feet (1,829 mm) high, tanks, and towers. Occupancy Classifications should be the same as those in the local building code. COMMITTEE ACTION: Accept as Submitted A PUBLIC COMMENT(S) WAS SUBMITTED FOR REVIEW AND CONSIDERATION. PUBLIC COMMENT: Submitter: April Trafton, UMC Access Task Group The following is recommended by the Access Task Group (see Access Task Group Report for Item # 1). Request to reject the code change proposal by this public comment. The occupancy classifications should not be deleted as they are specific to UMC requirements and may not be used consistently in all of the building codes where the UMC would be used (globally). Additionally, every instance where specific occupancies and occupancy classifications are mentioned in the UMC would need to be modified to address the deletion of the term. Item # 21 Comment Seq # 7 UMC SUBMITTER: John Taecker IAPMO Correlation Task Group, Chairman The following was recommend by the Correlation Task Group. (See Correlation Task Group Report Item 13A) 11

12 Revise text as follows: Liquefied Petroleum Gas Facilities. Containers, container valves regulating equipment, and appurtenances for the storage and supply of liquefied petroleum gas shall be installed in accordance with the Fire Code Chapter 13. In Section Liquified Petroleum Gas Facilities, the more appropriate reference would be Chapter 13, which defines Liquid Petroleum Gas Facilities in Section and references NFPA 58 in Section COMMITTEE ACTION: Accept as Amended by the TC Amend proposal as follows: Liquefied Petroleum Gas Facilities. Containers, container valves regulating equipment, and appurtenances for the storage and supply of liquefied petroleum gas shall be installed in accordance with the Fire Code and Chapter 13. COMMITTEE STATEMENT: The modification includes references to the Fire Code and Chapter 13 which clarifies the intent of this section. A PUBLIC COMMENT(S) WAS SUBMITTED FOR REVIEW AND CONSIDERATION. PUBLIC COMMENT: Submitter: Ted Lemoff, NFPA Request to accept the code change proposal as modified by this public comment Liquefied Petroleum Gas Facilities. Containers, container valves regulating equipment, and appurtenances for the storage and supply of liquefied petroleum gas shall be installed in accordance with the Fire Code and Chapter 13 NFPA 58. This comment proposes to remove a conflict in the UMC. Propane systems are referenced here and in Section In Chapter 3 if the UMC, the Fire Code and Chapter 13 are referenced, while in Chapter 13 of the UMC, NFPA 58 is referenced. The recommended change will make these 2 sections with apparently identical intent the same. NFPA 58 is the American National Standard for LP-Gas facilities, and is adopted in all states and used in many other countries. Alternately, Section could be deleted to remove the conflict. 12

13 Item # 23 Comment Seq # 8 UMC SUBMITTER: Pennie Feehan Cast Iron Soil Pipe Institute Add new text as follows: Equipment on Roofs General Equipment on roof shall be designed or enclosed so as the withstand climatic conditions in the areas in which it is installed. Where enclosures are provided, each enclosures shall be of reasonable height, and shall have at least a thirty (30) inch (760 m) clearance between the entire service access panel(s) of the equipment and the wall of the enclosure Roofs on which equipment is to be installed shall be capable of supporting the additional load or shall be reinforced to support the additional load All access locks, screws, and bolts shall be of corrosion-resistant material Installation of Equipment on Roofs Equipment shall be installed on accordance with its listing and the manufacture s installation instructions Equipment shall be installed on a well-drained surface of the roof. At least 6 ft. between any part of the equipment and the edge of a roof or similar hazard, or rigidly fixed rail, guards, parapets, or other building structures at least forty-two (42) inches (91.1 m) in height shall be provided on the exposed side All equipment requiring an external source of electrical power for its operation shall be provided with (1) readily accessible electrical disconnecting means within sight of the equipment, and (2) a 120 V AC grounding-type receptacle outlet on the roof adjacent to the equipment. The receptacle outlet shall be on the supply side of the disconnect switch Where water stands on the roof at the equipment or in the passageways to the equipment, or where the roof is of a design having a water seal, a suitable platform walkway, or both shall be provided above the waterline. Such platform(s) or walkway(s) shall be located adjacent to the equipment and control panels so that the equipment can be safely serviced where water stands on the roof Access to Equipment on Roofs Equipment located on roofs or other elevated locations shall be accessible Buildings of more than fifteen (15) feet (4.6 m) in height shall have an inside means of access to the roof, unless other means acceptable to the roof, unless other means acceptable to the Authority Having Jurisdiction are used The inside means of access shall be a permanent of foldaway inside stairway of ladder, terminating is an enclosure, scuttle, or trapdoor. Such scuttles or trapdoors shall be at least twenty-two (22) inches x twenty-four (24) (560 mm x 610 mm) in size, shall open easily and safely under all conditions, especially snow, and shall be constructed so as to permit access on the inside. At least six (6) feet (1.8 m) of 13

14 clearance shall be available between the access opening and the edge of the roof or similar hazard, or rigidly fixed rails or guards a minimum of forty-two (42) inches (1.1 m) in height shall be provided on the exposed side. Where parapets or other building structures are utilized in lieu of guards or rails, they shall be a minimum of forty-two (42) inches (1.1 m) in height Permanent lighting shall be provided at the roof access. The switch for such lighting shall be located inside the building near the access means leading to the roof. The only section that addresses roofs is Section and the section refers to gas utilization equipment. I feel that the code is missing other pieces of equipment that must be accessed safely for installations, inspection and servicing. COMMITTEE ACTION: Accept as Submitted A PUBLIC COMMENT(S) WAS SUBMITTED FOR REVIEW AND CONSIDERATION. PUBLIC COMMENT: Submitter: April Trafton, UMC Access Task Group The following is recommended by the Access Task Group (see Access Task Group Report for Item #2). Request to accept the code change proposal as modified by this public comment Equipment on Roofs General Enclosures. Equipment on roof shall be designed or enclosed so as to withstand climatic conditions in the areas in which it is installed. Where enclosures are provided, each enclosure shall be of reasonable height, and shall have at least a thirty (30) inch (760 mm) clearance between the entire service access panel(s) of the equipment and the wall of the enclosure Roof Support. Roofs on which equipment is to be installed shall be capable of supporting the additional load or shall be reinforced to support the additional load Corrosion Resistance. All access locks, screws, and bolts shall be of corrosion-resistant material Installation of Equipment on Roofs Equipment shall be installed in accordance with its listing and the manufacturer s installation instructions Roof Drainage. Equipment shall be installed on a well-drained surface of the roof Guards or Rails. At least six (6) ft. (1,829 mm) between any part of the equipment and the edge of a roof or similar hazard, or rigidly fixed rail, guards, parapets, or other building structures at least fortytwo (42) inches (1,067 mm) in height shall be provided on the exposed side. 14

15 Electrical Power. All equipment requiring an external source of electrical power for its operation shall be provided with: (1) Readily accessible electrical disconnecting means within sight of the equipment. (2) A 120 VAC grounding-type receptacle outlet on the roof adjacent to the equipment. The receptacle outlet shall be on the supply side of the disconnect switch Service and Access to Equipment and Appliances. Equipment and appliances shall be accessible for inspection, service, repair, and replacement without removing permanent construction. Sufficient clearance shall be maintained to permit cleaning of heating surfaces; the replacement of filters, blowers, motors, burners, controls, and vent connections; the lubrication of moving parts where necessary; the adjustment and cleaning of burners and pilots; and the proper functioning of explosion vents, if provided. [NFPA 54:9.2.1] Unless otherwise specified, not less than thirty (30) inches (762 mm) in depth, width, and height of working space and platform shall be provided to service the appliance. Exception: Unit heaters and room heaters may be installed with an eighteen (18) inch (457 mm) minimum depth working space. A platform shall not be required for unit heaters or room heaters. The operating instructions shall be attached to the appliance where they can be read easily Accessibility for Service. All appliances shall be located with respect to building construction and other equipment so as to permit access to the appliance gas utilization equipment. Sufficient clearance shall be maintained to permit cleaning of heating surfaces; the replacement of filters, blowers, motors, burners, controls, and vent connections; the lubrication of moving parts where necessary; the adjustment and cleaning of burners and pilots; and the proper functioning of explosion vents, if provided. For attic installation, the passageway and servicing area adjacent to the equipment appliances shall be floored. [NFPA 54:9.2.1] Access to Equipment on Roofs General. Equipment and Aappliances located on roofs or other elevated locations shall be accessible. [NFPA 54: ] Access from Inside. Buildings of more than fifteen (15) feet (4,572 mm) in height shall have an inside means of access to the roof, unless other means acceptable to the roof, unless other means acceptable to the Authority Having Jurisdiction are used. [NFPA 54: ] Door or Scuttle. The inside means of access shall be a permanent or foldaway inside stairway or ladder, terminating in an enclosure, scuttle, or trap door. Such scuttles or trap doors shall be at least twenty-two (22) inches x twenty-four (24) inches (560 mm x 610 mm) in size, shall open easily and safely under all conditions, especially snow, and shall be constructed so as to permit access on the inside Guards or Rails. At least six (6) feet (1,829 mm) of clearance shall be available between the access opening and the edge of the roof or similar hazard, or rigidly fixed rails or guards a minimum of fortytwo (42) inches (1,067 mm) in height shall be provided on the exposed side. Where parapets or other building structures are utilized in lieu of guards or rails, they shall be a minimum of forty-two (42) inches (1,067 mm) in height. [NFPA 54: ] Where water stands on the roof at the equipment or in the passageways to the equipment, or where the roof is of a design having a water seal, a suitable platform, walkway, or both shall be provided above the waterline. Such platform(s) or walkway( s) shall be located adjacent to the equipment and control panels so that the equipment can be safely serviced where water stands on the roof. 15

16 Permanent Lighting. Permanent lighting shall be provided at the roof access. The switch for such lighting shall be located inside the building near the access means leading to the roof. [NFPA 54: ] Equipment and appliances located on roofs or other elevated locations shall be accessible. [NFPA 54: ] Standing Water. Where water stands on the roof at the equipment or in the passageways to the equipment, or where the roof is of a design having a water seal, a suitable platform, walkway, or both shall be provided above the waterline. Such platform(s) or walkway( s) shall be located adjacent to the equipment and control panels so that the equipment can be safely serviced where water stands on the roof Assembly and Installation. A central-heating boiler or furnace shall be installed in accordance with the manufacturer s instructions and shall be installed on a floor of noncombustible construction with noncombustible flooring and surface finish and with no combustible material against the underside thereof, or on fireresistive slabs or arches having no combustible material against the underside thereof. Exception: (1) Appliances listed for installation on a combustible floor. (2) Installation on a floor protected in an approved manner. [NFPA 54:9.3.3] Under-floor Installation. Furnaces installed in an under-floor area of the building shall comply with the Section through Supported by Ground. Where a furnace is supported by the ground, it shall be installed on a concrete slab not less than three (3) inches (76 mm) above the adjoining ground level Supported from Above. Where a furnace is supported from above, a minimum clearance of 6- inches shall be provided from finished grade Excavation. Where excavation is necessary to install a furnace, it shall extend to a depth of six inches (6) (152 mm) below and 12 inches (305 mm) on all sides of the furnace, except on the service side, which shall have thirty (30) inches (762 mm). If the depth of the excavation for either the furnace or passageway exceeds twelve (12) inches (305 mm), walls shall be lined with concrete or masonry four (4) inches (102 mm) above the adjoining ground level Permanent lighting shall be provided at the roof access. The switch for such lighting shall be located inside the building near the access means leading to the roof. [NFPA 54: ] Appliances in Attics and Under-Floor Spaces Attic Access. An attic or under-floor space in which an appliance is installed shall be accessible through an opening and passageway at least as large as the largest component of the appliance, and not less than twenty-two (22) inches x thirty (30) inches (560 mm x 760 mm). [NFPA 54:9.5.1] Passageway Height. Where the height of the passageway is less than six (6) feet (1,829 mm), the distance from the passageway access to the appliance shall not exceed twenty (20) feet (6,096 mm) measured along the center-line of the passageway. [NFPA54: ] Passageway. The passageway shall be unobstructed and shall have solid flooring not less than twenty four (24) inches (610 mm) wide from the entrance opening to the appliance. [NFPA 54: ] Work Surface Platform. A level working platform or grade surface not less than thirty (30) inches (760 mm) by thirty (30) inches (760 mm) shall be provided in front of the service side of the appliance. [NFPA 54:9.5.2] 16

17 Lighting and Convenience Outlet. A permanent 120-volt receptacle outlet and a lighting fixture shall be installed near the appliance. The switch controlling the lighting fixture shall be located at the entrance to the passageway. [NFPA 54:9.5.3] Attic Furnace (Upright and Horizontal). Upright furnaces may be installed in an attic, or furred, or under-floor space more than five (5) feet (1524 mm) in height, provided the required listings and furnace and duct clearances are observed. Horizontal furnaces may be installed in an attic, or furred, or under-floor space, provided the required listings and furnace and duct clearances are observed. Clearances of a warmair attic furnace from combustibles shall be as specified in Section (303.8 through and ) The UMC Appliance/Equipment Access Task Group was directed to identify and review all sections of the UMC that address appliance and equipment access based on TC discussion related to Proposal Item 23. The objective was to develop recommendations that serve to eliminate redundancy and conflict, and consolidate where appropriate. The result is a series of proposals attempting to accomplish this goal. Sections and have been consolidated to eliminate duplicative requirements. The TC may want to investigate whether to delete the exception to as the Task Group was unable to identify applications where the exception was applicable or appropriate. The Task Group determined that installation and access provisions were intermixed within Sections 303 and 304. As such, the proposed changes were made to relocate several sections of that address installation to The remaining requirements of are applicable to roof access. ( ) The UMC Appliance/Equipment Access Task Group was directed to identify and review all sections of the UMC that address appliance and equipment access based on TC discussion related to Proposal Item 23. The objective was to develop recommendations that serve to eliminate redundancy and conflict, and consolidate where appropriate. The result is a series of proposals attempting to accomplish this goal. The definition of Equipment includes appliance. As such, chapter 3 terminology should be generic and all inclusive. (904.3 through and through ) The Task Group determined that installation and access requirements for appliances installed in under-floor spaces were needed as they are not specifically mentioned. The section on attics has been expanded to cover under-floor spaces. Most of the existing coverage is applicable to both. The Technical Committee may want to verify that the 3 inch elevation is still valid for the slab as this provision is from section of the 2000 UMC. The TC should note that there are no general provisions for equipment installed in attics in Chapter 3. This section could be relocated in Chapter 3; however, there may be other consequences. (904.10) The UMC Appliance/Equipment Access Task Group was directed to identify and review all sections of the UMC that address appliance and equipment access based on TC discussion related to Proposal Item 23. The objective was to develop recommendations that serve to eliminate redundancy and conflict, and consolidate where appropriate. The result is a series of proposals attempting to accomplish this goal. ( ) The last sentence in is unnecessary as it is already addressed in

18 Item # 26 Comment Seq # 9 UMC 2009 NFPA 96 Extracts SUBMITTER: Theodore C. Lemoff NFPA Revise extracts as follows: Item AUTOMATIC. Operating by its own mechanism when actuated by some impersonal influence, such as a change in current, strength, pressure, temperature, or mechanical configuration. AUTOMATIC. That which provides a function without the necessity of human intervention. [101:3.3] [NFPA 96:3.3.6] Item 2 CERTIFIED. A formally stated recognition and approval of an acceptable level of competency, acceptable to the AHJ. [NFPA 96:3.3.9] Item 3 QUALIFIED. A competent and capable person or company that has met the requirements and training for a given field acceptable to the AHJ. [NFPA 96:3.3.37] Item 4 TRAINED. A person who has become proficient in performing a skill reliably and safely through instruction and practice/field experience acceptable to the AHJ. [NFPA 96:3.3.47] Item Cooking equipment that has been listed in accordance with UL 197 or an equivalent standard for reduced emissions shall not be required to be provided with an exhaust system. [NFPA 96: *] The listing evaluation of cooking equipment covered by Section shall demonstrate that the grease discharge at the exhaust duct of a test hood placed over the appliance shall not exceed 5 mg/m3 when operated with a total airflow of cubic meters per second (500 dm). [NFPA 96: ] The responsibility for inspection, maintenance, and cleanliness of the ventilation control and fire protection of the commercial cooking operations shall be the ultimate responsibility of the owner of the system provided that this responsibility has not been transferred in written form to a management company or other party. [NFPA 96:4.1.5] (Renumber existing sections as required) Item Field-applied grease duct enclosures and factory-built grease duct enclosures shall be listed in accordance with UL 2221, Standard for Tests of Fire Resistive Grease Duct Enclosure Assemblies, or equivalent standard and installed in accordance with the manufacturer s instructions and the listing requirements. [NFPA 96:4.3.1] 18

19 (Renumber existing sections as required) Item The distance between the grease removal device and the cooking surface shall be as great as possible but not less than 18 in. (457.2mm). [NFPA 96: ] Where grease removal devices are used in conjunction with charcoal or charcoal-type broilers, including gas or electrically heated charbroilers, a minimum vertical distance of 4 ft.(1.22 m) shall be maintained between the lower edge of the grease removal device and the cooking surface. [NFPA 96: ] Exception No. 1: Grease removal devices supplied, as part of listed hood assemblies shall be installed in accordance with the terms of the listing and the manufacturer s instructions. [NFPA 96: ] Exception No. 2: For cooking equipment without exposed flame and where flue gases bypass grease removal devices, the minimum vertical distance shall be permitted to be reduced to not less than 6in. (152.4 mm). [NFPA ] Exception No. 3: Where a grease removal device is listed for separation distances less than those required in and , the listing requirements shall be permitted. [NFPA 96: ] Item Grease filters shall be listed and constructed of steel or listed equivalent material [NFPA ] and shall be of rigid construction that will not distort or crush under normal operation, handling, and cleaning conditions. [NFPA ] Filters shall be tight fitting and firmly held in place and grease filters shall be arranged so that all exhaust air passes through the grease filters. [NFPA 96: ] Item On horizontal ducts, at least one 20 in. by 20 in. (508 mm by 508 mm) opening shall be provided for personnel entry. [NFPA ] Horizontal ducting shall be secured sufficiently to allow for he weight of personnel entry into the duct. [NFPA ] Where an opening of this size is not possible, openings large enough to permit thorough cleaning shall be provided at 12 ft. (3.7 m) intervals. Support systems for horizontal grease duct systems 609 mm (24 in.) and larger in any cross-sectional dimension shall be designed for the weight of the ductwork plus 363 kg (800 lb) at any point in the duct systems. [NFPA 96: ] Item In existing systems, when changes in the cooking media, positioning, or replacement of cooking equipment occur, the fire-extinguishing system shall be made to comply with [NFPA 96: ] (Renumber existing sections as required) Item Grease removal devices, hood exhaust plenums, and exhaust ducts requiring protection in accordance with Section shall be permitted to be protected by a listed fixed baffle hood containing a constant or fireactuated water-wash system that is listed to extinguish a fire in the grease removal devices, hood exhaust plenums, and exhaust ducts. Each such area not provided with a listed water wash extinguishing system shall be provided with an appropriate fire suppression system listed for the purpose. and in compliance with UL 300 or other equivalent standards and shall be installed in accordance with the requirements of their listing. [NFPA 96: ] Item Modification of Existing Hood Systems Any abandoned pipe or conduit from a previous installation shall be removed from within the hood, plenum, and exhaust duct. [NFPA 96: ] 19

20 Penetrations and holes resulting from the removal of conduit or piping shall be sealed with listed or equivalent liquid tight sealing devices. [NFPA 96: ] The addition of obstructions to spray patterns from the cooking appliance nozzle(s) such as baffle plates, shelves, or any modification shall not be permitted. [NFPA 96: ] Changes or modifications to the hazard after installation of the fire-extinguishing systems shall result in reevaluation of the system design by a properly trained and qualified person(s) or company. [NFPA 96: ] (Renumber existing sections as required) Item Secondary filtration and pollution control equipment shall be operated in accordance with the terms of their listing and the manufacturer s recommendations. [NFPA 96:11.1.7] Inspection and maintenance of equipment allowed in Section shall be conducted by properly trained and qualified persons at a frequency determined by the manufacturer s instructions or equipment listing. [NFPA 96:11.1.8] Item Inspection. An inspection and servicing Maintenance of the fire-extinguishing systems and listed exhaust hoods containing a constant or fire-activated water system that is listed to extinguish a fire in the grease removal devices, hood exhaust plenums, and exhaust ducts shall be made by properly trained, qualified, and certified person(s) or company acceptable to the Authority Having Jurisdiction at least every six months. by properly trained and qualified persons. [NFPA 96:11.2.1] Item Fusible links (including fusible links on fire-actuated damper assemblies) and automatic sprinkler heads shall be replaced at least annually semiannually, or more frequently if necessary where required by the manufacturer, to ensure proper operation of the system. Other detection devices shall be serviced or replaced in accordance with the manufacturer s recommendations. Exception: Where automatic bulb type sprinklers or spray nozzles are used and annual examination shows no buildup of grease or other material on the sprinkler or spray nozzles. [NFPA 96:11.2.4] Item Upon inspection, if found to be contaminated with deposits from grease-laden vapors, the entire exhaust system the contaminated portions of the exhaust system shall be cleaned by a properly trained, qualified, and certified company or person(s) acceptable to the Authority Having Jurisdiction in accordance with Section [NFPA 96:11.4.1] Item Cooking Equipment Maintenance. [NFPA 96:11.5] An inspection and servicing of the cooking equipment shall be made at least annually by properly trained and qualified persons. [NFPA 96:11.5.1] Cooking equipment that collects grease below the surface, behind the equipment, or in cooking equipment flue gas exhaust, such as griddles or charbroilers, shall be inspected and, if found with grease accumulation, cleaned by a properly trained, qualified, and certified person acceptable to the authority having jurisdiction. [NFPA 96:11.5.2] 20

21 Item A recirculating system shall not use cooking equipment that exceeds that recirculating system s labeled maximum limits for that type of equipment, stated in maximum energy input, maximum cooking temperature, and maximum square area of cooking surface or cubic area volume of cooking cavity. The listing label shall not show the type(s) of cooking equipment tested and the preceding maximum limits. [NFPA 96: ] Item All solid-fuel appliances (whether or not under a hood) with fireboxes of 5 cubic ft. (0.14m 3 ) volume or less shall at least have a listed 2-A rated water-type or wet chemical fire extinguisher or a 1.6 gal (6 L) wet chemical fire extinguisher listed for Class K fires in accordance with NFPA 10, Standard for Portable Fire Extinguishers, in the immediate vicinity of the appliance. Two portable fire extinguishers of at least 1 1/2 gal. (5.7 L) each and containing potassium citrate, potassium acetate, or potassium carbonate solutions shall be permitted to be used instead of the one 2 A rated portable fire extinguisher. [NFPA 96:14.7.8] Item Solid-fuel appliances with fireboxes exceeding 5 cubic ft. (0.14 m 3 ) shall be provided with a fixedwaterpipe system with a hose in the immediate vicinity of the appliance. [NFPA ] The hose shall be equipped with an adjustable nozzle capable of producing a fine to medium spray or mist. [NFPA 96: ] The nozzle shall be of the type that cannot produce a straight stream. [NFPA 96: ] The system shall have a minimum operating pressure of 40 psi (275.8 kpa) and shall provide a minimum of 5 gpm. [NFPA 96: ] Extracts from other documents should be maintained at the most recent edition, which will be the 2006 edition of NFPA 96. COMMITTEE ACTION: Accept as Amended by the TC Amend proposal as follows: To approve as modified to the location in the 2006 UMC as currently written (section numbers may have changed). COMMITTEE STATEMENT: To update extracts in NFPA 96. A PUBLIC COMMENT(S) WAS SUBMITTED FOR REVIEW AND CONSIDERATION. PUBLIC COMMENT: Submitter: Ted Lemoff, NFPA Request to accept the code change proposal as modified by this public comment. 21

22 Items 1 through 8 (text remains unchanged) On horizontal ducts, at least one 20 in. by 20 in. (508 mm by 508 mm) opening shall be provided for personnel entry. [NFPA 96: ] Horizontal ducting shall be secured sufficiently to allow for he weight of personnel entry into the duct. [NFPA 96: ] Where an opening of this size is not possible, openings large enough to permit thorough cleaning shall be provided at 12 ft. (3.7 m) intervals. Openings on horizontal grease duct systems shall be provided with safe access and a work platform when not easily accessible from a 3 m (10 ft) stepladder. [NFPA 96: ] Support systems for horizontal grease duct systems 609 mm (24 in.) and larger in any cross-sectional dimension shall be designed for the weight of the ductwork plus 363 kg (800 lb) at any point in the duct systems. [NFPA 96: ] Items 10, 11 and sections through (text remains unchanged) Changes or modifications to the hazard after installation of the fire-extinguishing systems shall result in reevaluation of the system design by a properly trained, qualified, and certified and qualified person(s) or company. [NFPA 96: ] Items 13 through 20 (text remains unchanged). ( ) Allows for serviceability consistent with ( ) The extract is updated to reflect a change in NFPA 96. The change was to be consistent with another requirement in NFPA 96 that individuals who perform maintenance be certified therefore; individuals that evaluate the system design should also be certified. Fire extinguishing system manufacturers certify individuals not companies. Item # 42 Comment Seq # 10 UMC SUBMITTER: Leon Alevantis California Department of Health Services Revise text as follows: Termination of Environmental Air Ducts. Separation distances between terminations of Eenvironmental air ducts exhausts: and openings into buildings shall be no less than the distances listed in Table 5-2. In addition, terminations of environmental ducts shall be and not less than : three (3) feet (914 mm) from property line. three (3) feet (914 mm) from openings into the building. 22

23 TABLE 5-2 Minimum Separation Distances Between Environmental Duct Terminations and Building Openings Object Minimum Distance, ft (m) Significantly contaminated exhaust (Note 1) 15 (5) Noxious or dangerous exhaust (Notes 2 and 3) 30 (10) Cooling tower exhaust (see also Section ) 25 (7.5) Note 1: Significantly contaminated exhaust is exhaust air with significant contaminant concentration, significant sensory-irritation intensity, or offensive odor. Note 2: Laboratory fume hood exhaust air outlets shall be in compliance with NFPA and ANSI/AIHA Z Note 3: Noxious or dangerous exhaust is exhaust air with highly objectionable fumes or gases and/or exhaust air with potentially dangerous particles, bioaerosols, or gases at concentrations high enough to be considered harmful. Information on separation criteria for industrial environments can be found in the ACGIH Industrial Ventilation Manual 3 and in the ASHRAE Handbook HVAC Applications. 4 1 NFPA , Standard on Fire Protection for Laboratories Using Chemicals. National Fire Protection Association, Quincy, MA. 2 ANSI/AIHA Z , Standard for Laboratory Ventilation. American Industrial Hygiene Association, Fairfax, VA. 3 Industrial Ventilation: A Manual of Recommended Practice, 23rd Edition, American Conference of Governmental Industrial Hygienists (ACGIH), Committee on Industrial Ventilation, Lansing, MI ASHRAE Handbook Heating, Ventilating, and Air-Conditioning Applications. American Society of Heating, Refrigerating and Air-Conditioning Engineers, Inc., Atlanta, GA. Exhaust ducts located 3 feet from building intakes may result in very high level of pollutant exposure to the occupants of a building. ASHRAE Standard entitled Ventilation for Acceptable Indoor Air Quality has developed specific separation distances between building intakes and various sources of exhausts (listed in Table 5-1 of ). The recommended distances were developed based on existing research. It is therefore imperative that building codes reflect this knowledge, thus providing a reasonable level of occupant protection against pollutants entering building intakes from exhaust ducts. COMMITTEE ACTION: Reject COMMITTEE STATEMENT: The proposed text conflicts with Section and Section A PUBLIC COMMENT(S) WAS SUBMITTED FOR REVIEW AND CONSIDERATION. PUBLIC COMMENT: Submitter: Leon Alevantis, CA Dept of Public Hlth Requests accept the code change proposal as modified by this public comment. 23

24 504.5 Termination of Environmental Air Ducts. Separation distances between terminations of Eenvironmental air duct exhausts and openings into buildings shall be not less than the distances listed in Table 5-2. In addition, terminations of environmental ducts shall be not less than three (3) feet (914 mm) from property line; three (3) feet (914 mm) from openings into the building. Table 5-2 Minimum Separation Between Environmental Duct Terminations and Building Openings. Object Minimum Distance, ft. (mm) Exhaust air with moderate contaminant concentration, mild 3 (914) sensory-irritation intensity, or mildly offensive odors (such as domestic-type bathroom exhaust or domestic-type clothes dryer exhaust) Exhaust air with significant contaminant concentration, 15 (4,572) significant sensory-irritation intensity, or offensive-odor (such as domestic kitchen range exhaust or commercial building bathroom exhaust) (Renumber existing table 5-2 and remaining tables) We disagree with the TC s action and partially with the TC s statement. We have offered compromise language that in our opinion addresses the TC s concerns. Below, we have addressed separately the two concerns that the TC raised. 1. The originally proposed text may have been in conflict with Section Section entitled Design of Product Conveying Ventilation Systems covers primarily ducts conveying flammable and explosive vapors or fumes. Our previously proposed new category Noxious or dangerous exhaust in Section Environmental Air Ducts may have been in conflict with Section 505. In our revised proposed text we have removed this category. However, we noticed that by eliminating this category, modifications needed to be made to Section Product Conveying Ducts and more specific to Section where separation distances are listed. 2. The originally proposed text would have been in conflict with the published language of Section if our proposed changes to Section were not accepted: Also, a cooling tower exhaust may or may not be considered as an Environmental Air Duct depending on the cooling tower construction. In our revised proposed text we have removed this category. We strongly believe that separation distances between environmental air/product conveying ducts and building intakes should be increased in the UMC based on current knowledge. We note that the separation distances listed in Table 5-1 of ASHRAE Standard for significantly contaminated exhaust were developed based on a consensus process. We also point out that Note 1 of Table 5-1 (ASHRAE Standard ) states that: Significantly contaminated exhaust is exhaust air with significant contaminant concentration, significant sensory-irritation intensity, or offensive odor. The language in this Note is consistent with Class 3 air as described in Section Classification of the ASHRAE Standard The definitions for all air classes are indicated on the following page: 24

25 * Class 1: Air with low contaminant concentration, low sensory-irritation intensity, and inoffensive odor. * Class 2: Air with moderate contaminant concentration, mild sensory-irritation intensity, or mildly offensive odors. Class 2 air also includes air that is not necessarily harmful or objectionable but that is inappropriate for transfer or recirculation to spaces used for different purposes. * Class 3: Air with significant contaminant concentration, significant sensory-irritation intensity, or offensive odor. * Class 4: Air with highly objectionable fumes or gases or with potentially dangerous particles, bio aerosols, or gases, at concentrations high enough to be considered harmful. Therefore in the context of this discussion, Class 3 air and above must meet the requirements of Table 5-1. Our proposed changes to Table 5-X submitted in this Comment Form are consistent with ASHRAE s recommendations while maintaining the existing separation distances in the UMC for Classes 1 and 2 air. In regards to Section we recommend that the separation distance between exhaust ducts conveying non-explosive or flammable vapors be increased from 10 feet to 15 feet so that it is consistent with our proposed change in Section as well as Standard 62.1 (Class 3 air). It is important to the extent possible and practical that that the UMC be consistent with other consensus standards. Note: Standard was submitted for review. Item # 54 Comment Seq # 11 UMC SUBMITTER: Theodore C. Lemoff NFPA Revise text as follows: Listed Hood Assemblies. Listed hood assemblies shall be installed in accordance with the terms of their listing and the manufacturer s instructions UL 710 or equivalent. UL 710 or its equivalent should be referenced for listing hoods, as this is the UL test standard for hood approvals. COMMITTEE ACTION: Reject COMMITTEE STATEMENT: UL 710 is a testing standard and not an installation standard. The committee is advised that the intent of UL 710 is to rely on the manufacturers installation instructions. Possible conflicts between manufacturers installation instructions and UL

26 A PUBLIC COMMENT(S) WAS SUBMITTED FOR REVIEW AND CONSIDERATION. PUBLIC COMMENT: Submitter: Ted Lemoff, NFPA Request to accept the code change proposal as modified by this public comment Listed Hood Assemblies. Listed hood assemblies shall be installed in accordance with the terms of their listing and the manufacturer s instructions. Listed hood assemblies shall be installed in accordance with the terms of their listing and the manufacturer s instructions. [NFPA 96:5.4.1] Listed hood assemblies shall be tested in accordance with UL 710 or equivalent. [NFPA 96:5.4.2] This comment will revise the currently text in Section with a more specific requirement that UL 710 should be the standard to which hoods are listed. This text does not intend to require that post-installation inspections be conducted using UL 710. Item # 58 Comment Seq # 12 UMC SUBMITTER: Theodore C. Lemoff NFPA Revise text as follows: Air Movement Exhaust Fans for Commercial Cooking Equipment. Where solid-fuel cooking equipment is to be vented, the duct system shall comply with Section Approved upblast fans with motors surrounded by the airstream shall be hinged, supplied with flexible weatherproof electrical cable and service hold-open retainers, and listed for this use. (See Figure 5-5.) Installation shall conform to the requirements of Section In-Line Exhaust Fans In-line fans shall be of the type with the motor located outside the airstream and with belts and pulleys protected from the airstream by a greasetight housing. They shall be connected to the exhaust duct by flanges securely bolted as shown in Figure 5-6(a), or by a system specifically listed for such use. Flexible connectors shall not be used. [NFPA 96: ] If the design or positioning of the fan allows grease to be trapped, a drain directed to a readily accessible and visible grease receptacle, not exceeding one (1) gallon (3.8 L), shall be provided. In-line exhaust fans shall be located in an easily accessible area of adequate size to allow for service or removal. If the duct system connected to the fan is in an enclosure, the space or room in which the exhaust fan is located shall have the same fire resistance rating as the enclosure. [NFPA 96: ] Utility set exhaust fans, if installed at the rooftop termination point, shall meet the requirements of Section (A) through Section If the fan is installed within the building, it shall be located in an easily accessible area of adequate size to allow for service or removal. If the duct system connected to the fan is in an enclosure, the space or room in which the exhaust fan is located shall have the same fire resistance rating as the enclosure. The fan shall be connected to the exhaust duct by flanges securely bolted 26

27 as shown in Figures 5-6(a) through 5-6(d) or by a system specifically listed for such use. Flexible connectors shall not be used. Exhaust fans shall have a drain directed to a readily accessible and visible grease receptacle not to exceed one (1) gallon (3.8 L). [NFPA 96: ] Exhaust fan housings shall be constructed of carbon steel not less than inch (1.37 mm) (No. 16 MSG) in thickness or stainless steel not less than inch (1.09 mm) (No. 18 MSG) in thickness or, if listed, constructed in accordance with the terms of the listing. [NFPA 96: 8.1.4] Openings for cleaning, servicing, and inspection shall conform to the requirements of Section Clearances shall conform to the requirements of Section 507.2, or if installed within an enclosure All wiring and electrical equipment shall comply with NFPA 70, National Electrical Code Airflow The air velocity through any duct shall be not more than 2,500 feet (457.2 m) per minute. [NFPA 96: ] Exception: Transition duct sections shall be permitted to be connected to hoods and exhaust fans that do not meet this velocity, provided that they do not exceed three (3) feet (0.92 m) in length and do not contain traps for grease Transition duct sections that do not exceed 1 m (3 ft) in length and do not contain grease traps shall be permitted to be connected to hoods and exhaust fans that do not meet this velocity. [NFPA 96: ] Exhaust-air volumes for hoods shall be of sufficient level to provide for capture and removal of grease-laden cooking vapors. Test data, performance acceptable to the Authority Having Jurisdiction, or both, shall be provided, displayed, or both, upon request. [NFPA 96: , ] Exception: Lower exhaust-air volumes shall be permitted during no-load cooking conditions, provided they are sufficient to capture and remove flue gases and residual vapors from cooking equipment A hood exhaust fan(s) shall continue to operate after the extinguishing system has been activated, unless fan shutdown is required by a listed component of the ventilation system or by the design of the extinguishing system. It shall not be required to restart the hood exhaust fan when the extinguishing system is activated if the exhaust fan and all cooking equipment served by the fan had previously been shut down. The hood exhaust fan shall not be required to start upon activation of the extinguishing system if the exhaust fan and all cooking equipment served by the fan have previously been shut down. [NFPA 96: 8.2.3] Replacement Air. Replacement air quantity shall be adequate to prevent negative pressures in the commercial cooking area(s) from exceeding 0.02 inch water column (4.98 kpa). [NFPA 96: 8.3.1] When its fire-extinguishing system discharges, makeup air supplied internally to a hood shall be shut off. [NFPA 96: 8.3.2] Exceptions: (1) When its fire-extinguishing system discharges, makeup air supplied internally to a hood shall be shut off. Compensating hoods shall meet the airflow requirements specified in Sections through Compensating hoods shall extract at least 20 percent of their required exhaust airflow from the kitchen area Common Duct (Manifold) Systems Master kitchen exhaust ducts that serve multiple tenants shall include provision to bleed air from outdoors or from adjacent spaces into the master exhaust duct where required to maintain the necessary minimum air velocity in the master exhaust duct. [NFPA 96: 8.4.1] 27

28 This bleed-air duct ducts shall connect to the top or side of the master exhaust duct. [NFPA 96: 8.4.2] The bleed-air duct shall have a fire damper at least twelve (12) inches (304.8 mm) from the exhaust duct connection. [NFPA 96: 8.4.3] The bleed-air duct shall have the same construction and clearance requirements as the main exhaust duct from the connection to the exhaust duct to at least twelve (12) inches mm) on both sides of the fire damper. [NFPA 96: 8.4.4] Each bleed air duct shall have a means of adjusting (e.g., using volume dampers) the bleed-air quantity. [NFPA 96: 8.4.5] Such means to adjust the bleed air quantity shall be installed in between the fire damper and the source of bleed air. [NFPA 96: 8.4.6] A bleed air duct shall not be used for the exhaust of grease-laden vapors and shall be so labeled. [NFPA 96: 8.4.7] Unused tenant exhaust connections to the master exhaust duct that are not used as bleed air connections shall be disconnected and sealed at the main duct. [NFPA 96: 8.4.8] Solid-Fuel Air Movement Requirements. Where solid-fuel cooking equipment is used, exhaust and replacement air also shall comply with Section Paragraphs in Section 511 that are extracted from NFPA 96 are identified. 2. Paragraph is revised by deleting easily which is neither defined nor enforceable. The exception to is replaced with revised text from the 2004 edition of NFPA The second sentence of is replaced with revised text from NFPA Exception 1 to is replaced with a new containing revised text from NFPA 96. These revisions intent to upgrade the requirements of section 511of the UMC, which is draws from on NFPA 96. Recent additions to NFPA 96, including flanged joints and connecting ducts are added to the UMC. COMMITTEE ACTION: Accept as Amended by the TC Amend proposal as follows: Air Movement Exhaust Fans for Commercial Cooking Equipment. Where solid-fuel cooking equipment is to be vented, the duct system shall comply with Section Approved upblast fans with motors surrounded by the airstream shall be hinged, supplied with flexible weatherproof electrical cable and service hold-open retainers, and listed for this use. (See Figure 5-5.) Installation shall conform to the requirements of Section In-Line Exhaust Fans In-line fans shall be of the type with the motor located outside the airstream and with belts and pulleys protected from the airstream by a grease tight housing. They shall be connected to the exhaust duct 28

29 by flanges securely bolted as shown in Figure 5-6(a), or by a system specifically listed for such use. Flexible connectors shall not be used. [NFPA 96: ] If the design or positioning of the fan allows grease to be trapped, a drain directed to a readily accessible and visible grease receptacle, not exceeding one (1) gallon (3.8 L), shall be provided. In-line exhaust fans shall be located in an easily accessible area of adequate size to allow for service or removal. If the duct system connected to the fan is in an enclosure, the space or room in which the exhaust fan is located shall have the same fire resistance rating as the enclosure. [NFPA 96: ] Utility set exhaust fans, if installed at the rooftop termination point, shall meet the requirements of Section (A) through Section If the fan is installed within the building, it shall be located in an easily accessible area of adequate size to allow for service or removal. If the duct system connected to the fan is in an enclosure, the space or room in which the exhaust fan is located shall have the same fire resistance rating as the enclosure. The fan shall be connected to the exhaust duct by flanges securely bolted as shown in Figures 5-6(a) through 5-6(d) or by a system specifically listed for such use. Flexible connectors shall not be used. Exhaust fans shall have a drain directed to a readily accessible and visible grease receptacle not to exceed one (1) gallon (3.8 L). [NFPA 96: ] Exhaust fan housings shall be constructed of carbon steel not less than inch (1.37 mm) (No. 16 MSG) in thickness or stainless steel not less than inch (1.09 mm) (No. 18 MSG) in thickness or, if listed, constructed in accordance with the terms of the listing. [NFPA 96: 8.1.4] Openings for cleaning, servicing, and inspection shall conform to the requirements of Section Clearances shall conform to the requirements of Section 507.2, or if installed within an enclosure All wiring and electrical equipment shall comply with NFPA 70, National Electrical Code Airflow The air velocity through any duct shall be not more than 2,500 feet (457.2 m) per minute. [NFPA 96: ] Transition duct sections that do not exceed 1 m (3 ft) in length and do not contain grease traps shall be permitted to be connected to hoods and exhaust fans that do not meet this velocity. [NFPA 96: ] Exhaust-air volumes for hoods shall be of sufficient level to provide for capture and removal of grease-laden cooking vapors. Test data, performance acceptable to the Authority Having Jurisdiction, or both, shall be provided, displayed, or both, upon request. [NFPA 96: , ] Exception: Lower exhaust-air volumes shall be permitted during no-load cooking conditions, provided they are sufficient to capture and remove flue gases and residual 22-2 vapors from cooking equipment A hood exhaust fan(s) shall continue to operate after the extinguishing system has been activated, unless fan shutdown is required by a listed component of the ventilation system or by the design of the extinguishing system. It shall not be required to restart the hood exhaust fan when the extinguishing system is activated if the exhaust fan and all cooking equipment served by the fan had previously been shut down. The hood exhaust fan shall not be required to start upon activation of the extinguishing system if the exhaust fan and all cooking equipment served by the fan have previously been shut down. [NFPA 96: 8.2.3] Replacement Air. Replacement air quantity shall be adequate to prevent negative pressures in the commercial cooking area(s) from exceeding 0.02 inch water column (4.98 kpa). [NFPA 96: 8.3.1] When its fire-extinguishing system discharges, makeup air supplied internally to a hood shall be shut off. [NFPA 96: 8.3.2] 29

30 Exception: Compensating hoods shall meet the airflow requirements specified in Sections through Compensating hoods shall extract at least 20 percent of their required exhaust airflow from the kitchen area Common Duct (Manifold) Systems Master kitchen exhaust ducts that serve multiple tenants shall include provision to bleed air from outdoors or from adjacent spaces into the master exhaust duct where required to maintain the necessary minimum air velocity in the master exhaust duct. [NFPA 96: 8.4.1] This bleed-air duct ducts shall connect to the top or side of the master exhaust duct. [NFPA 96: 8.4.2] The bleed-air duct shall have a fire damper at least twelve (12) inches (304.8 mm) from the exhaust duct connection. [NFPA 96: 8.4.3] The bleed-air duct shall have the same construction and clearance requirements as the main exhaust duct from the connection to the exhaust duct to at least twelve (12) inches (304.8 mm) on both sides of the fire damper. [NFPA 96:8.4.4] Each bleed air duct shall have a means of adjusting (e.g., using volume dampers) the bleed-air quantity. [NFPA 96: 8.4.5] Such means to adjust the bleed air quantity shall be installed in between the fire damper and the source of bleed air. [NFPA 96: 8.4.6] A bleed air duct shall not be used for the exhaust of grease-laden vapors and shall be so labeled. [NFPA 96: 8.4.7] Unused tenant exhaust connections to the master exhaust duct that are not used as bleed air connections shall be disconnected and sealed at the main duct. [NFPA 96: 8.4.8] Solid-Fuel Air Movement Requirements. Where solid-fuel cooking equipment is used, exhaust and replacement air also shall comply with Section COMMITTEE STATEMENT: To make corrections to the proposal in accordance with NFPA 96 and the 2006 UMC text. A PUBLIC COMMENT(S) WAS SUBMITTED FOR REVIEW AND CONSIDERATION. PUBLIC COMMENT: Submitter: Ted Lemoff, NFPA Request to accept the code change proposal as modified by this public comment The air velocity through any duct shall be not more less than 2,500 feet (457.2 m) 500 feet per minute (152.4 meters per minute). [NFPA 96: ] 30

31 This corrects an error in the proposal. The revised language is extracted from NFPA 96 section The paragraph is based on ASHRAE Research Project 1033-RP Final Report, Effects of air velocity on grease deposition in exhaust ductwork, documented that grease deposition is reduced as air velocity is reduced, primarily due to less turbulence at the duct surface. Tests were performed at velocities of 500 fpm, 1,000 fpm, 1,500 fpm, and 2,000 fpm. The 500 fpm velocity maintains or improves the safety aspect of minimizing grease buildup, while allowing engineers more flexibility in both retrofit and new kitchen design that include variable flow kitchen exhaust systems. According to the report, grease deposition in uninsulated ducts exposed to cold outdoor climates can increase with lower duct velocities, and insulation of R-10 or greater was recommended. Item # 59 Comment Seq # 13 UMC SUBMITTER: Theodore C. Lemoff NFPA Revise text as follows: Auxiliary Equipment Dampers. Dampers shall not be installed in exhaust ducts or exhaust duct systems. [NFPA 96: 9.1.1] Exception: Where specifically listed for such use or where required as part of a listed or approved device or system, dampers in exhaust ducts or exhaust duct systems shall be permitted. [NFPA 96: 9.1.2] Electrical Equipment Wiring systems of any type shall not be installed in ducts. [NFPA 96: 9.2.1] Only where specifically listed for such use shall motors, lights, and other electrical devices shall not be permitted to be installed in ducts or hoods or located in the path of travel of exhaust products. [NFPA 96: 9.1.2] Exception: Where specifically approved for such use Lighting units in hoods shall be listed for use over commercial cooking appliances and installed in accordance with the terms of their listing. [NFPA 96: 9.2.2] Lighting units on hoods shall not be located in concealed spaces. Exceptions: (1) Where part of a listed exhaust hood. (2) Where specifically listed for such use and installed in accordance with the terms of the listing Lighting units in hoods shall be listed for use over commercial cooking appliances and installed in accordance with the terms of their listing. [NFPA 96: ] Lighting units on hoods shall not be located in concealed spaces. [NFPA 96: ] Lighting units shall be permitted in concealed spaces where such units are part of a listed exhaust hood. [NFPA 96: ] 31

32 Listed lighting units specifically listed for such use and installed in accordance with the terms of the listing shall be permitted to be installed in concealed spaces. [NFPA 96: ] All electrical equipment shall be installed in accordance with NFPA 70, National Electrical Code, with due regard to the effects of heat, vapor, and grease on the equipment Other Equipment Fume incinerators, thermal recovery units, air pollution control devices, or other devices shall be permitted to be installed in ducts or hoods or located in the path of travel of exhaust products where specifically approved for such use. Downgrading other parts of the exhaust system due to the installation of these approved devices, whether listed or not, shall not be allowed. [NFPA 96:3.1,9.3.2] Any equipment, listed or otherwise, that provides secondary filtration or air pollution control and that is installed in the path of travel of exhaust products shall be provided with an approved automatic fire-extinguishing system for the protection of the component sections of the equipment and shall include protection of the ductwork downstream of the equipment, whether or not the equipment is provided with a damper. If the equipment can be a source of ignition, it shall be provided with appropriate detection to operate the fireextinguishing system. [NFPA 96:9.3.3,9.3.4] Where a cooking exhaust system employs an air pollution control device that recirculates air into the building, the provisions of Section shall apply. [NFPA 96:9.35] Solid-Fuel Auxiliary Equipment. Where solid fuel cooking comprises any part of a cooking operation, additional provisions and equipment as described in Section shall be used where required. 1. Paragraphs in Section 512 that are extracted from NFPA 96 are identified. 2. Exceptions to , , and are deleted and replaced with paragraphs extracted from NFPA 96. These revisions intent to upgrade the requirements of section 512 of the UMC, which is draws from on NFPA 96. COMMITTEE ACTION: Accept as Amended by the TC Amend proposal as follows: Auxiliary Equipment Dampers. Dampers shall not be installed in exhaust ducts or exhaust duct systems. [NFPA 96:9.1.1] Where specifically listed for such use or where required as part of a listed or approved device or system, dampers in exhaust ducts or exhaust duct systems shall be permitted. [NFPA 96:9.1.2] Electrical Equipment Wiring systems of any type shall not be installed in ducts. [NFPA 96:9.2.1] Only where specifically listed for such use shall motors, lights, and other electrical devices be permitted to be installed in ducts or hoods or located in the path of travel of exhaust products. [NFPA 96:9.1.2] Lighting units in hoods shall be listed for use over commercial cooking appliances and installed in accordance with the terms of their listing. [NFPA 96:9.2.2] 32

33 Lighting units in hoods shall be listed for use over commercial cooking appliances and installed in accordance with the terms of their listing. [NFPA 96: ] Lighting units on hoods shall not be located in concealed spaces. [NFPA 96: ] Lighting units shall be permitted in concealed spaces where such units are part of a listed exhaust hood. [NFPA 96: ] Listed lighting units specifically listed for such use and installed in accordance with the terms of the listing shall be permitted to be installed in concealed spaces. [NFPA 96: ] All electrical equipment shall be installed in accordance with NFPA 70, National Electrical Code, with due regard to the effects of heat, vapor, and grease on the equipment Other Equipment Fume incinerators, thermal recovery units, air pollution control devices, or other devices shall be permitted to be installed in ducts or hoods or located in the path of travel of exhaust products where specifically approved for such use. Downgrading other parts of the exhaust system due to the installation of these approved devices, whether listed or not, shall not be allowed. [NFPA 96: ] Any equipment, listed or otherwise, that provides secondary filtration or air pollution control and that is installed in the path of travel of exhaust products shall be provided with an approved automatic fire extinguishing system for the protection of the component sections of the equipment and shall include protection of the ductwork downstream of the equipment, whether or not the equipment is provided with a damper. If the equipment can be a source of ignition, it shall be provided with appropriate detection to operate the fireextinguishing system. [NFPA 96:9.3.3, 9.3.4] Where a cooking exhaust system employs an air pollution control device that recirculates air into the building, the provisions of Section shall apply. [NFPA 96:9.3.5] Solid-Fuel Auxiliary Equipment. Where solid fuel cooking comprises any part of a cooking operation, additional provisions and equipment as described in Section shall be used where required. COMMITTEE STATEMENT: To make corrections to the proposed text in accordance with NFPA 96 and the 2006 UMC text. A PUBLIC COMMENT(S) WAS SUBMITTED FOR REVIEW AND CONSIDERATION. PUBLIC COMMENT: Submitter: Ted Lemoff, NFPA Request to accept the code change proposal as modified by this public comment. Sections through (text remains unchanged) Lighting units in hoods shall be listed for use over commercial cooking appliances and installed in accordance with the terms of their listing. [NFPA 96:9.2.2] (Renumber remaining sections). 33

34 Any equipment, listed or otherwise, that provides secondary filtration or air pollution control and that is installed in the path of travel of exhaust products shall be provided with an approved automatic fire-extinguishing system for the protection of the component sections of the equipment and shall include protection of the ductwork downstream of the equipment, whether or not the equipment is provided with a damper. Filter media used in secondary filtration or air pollution control units and not complying with Section shall have fire protection that is adequate for the filter media being used in accordance with the fire-extinguishing system manufacturer s instructions. If the equipment can be a source of ignition, it shall be provided with appropriate detection to operate the fire-extinguishing system. [NFPA 96:9.3.3, 9.3.4] Sections and (text remains unchanged). ( ) Section is repeated in section and also has the wrong reference. Section should be deleted. ( ) This comment incorporates text added to the 2008 edition of NFPA 96. Secondary filtration/odor control and/or pollution control devices can have a variety of filter media (e.g., various configurations of baffle filters, bag filters, electrostatic precipitators, heap filters, charcoal filters, etc.), with varying sizes and depths of filter. Standard UL 300 hood filter protection may not be adequate for proper protection of some of these filter media. Item # 60 Comment Seq # 14 UMC SUBMITTER: Theodore C. Lemoff, NFPA Revise text as follows: Fire-Extinguishing Equipment General Requirements Fire-extinguishing equipment for the protection of grease removal devices, hood exhaust plenums, and exhaust duct systems shall be provided. [NFPA 96:10.1.1] Cooking equipment that produces grease-laden vapors (such as, but not limited to, deep-fat fryers, ranges, griddles, broilers, woks, tilting skillets, and braising pans) shall be protected by fire-extinguishing equipment. [NFPA 96:10.1.2] Types of Equipment Fire-extinguishing equipment shall include both automatic fire-extinguishing systems as primary protection and portable fire extinguishers as secondary backup. [NFPA 96:10.2.1] A placard identifying the use of the extinguisher as secondary backup means to the automatic fire suppression system shall be conspicuously placed near each portable fire extinguisher in the cooking area. [NFPA 96:10.2.2] 34

35 Automatic fire-extinguishing systems shall comply with standard UL 300, Fire Testing of Fire Extinguishing Systems for Protection of Restaurant Cooking Areas, or other equivalent standards and shall be installed in accordance with their listings. [NFPA 96:10.2.3] Exception: Automatic fire-extinguishing equipment provided as part of listed recirculating systems complying with standard UL 197, Standard for Safety Commercial Electric Cooking Appliances. [NFPA 96:10.2.5] Automatic fire-extinguishing systems shall be installed in accordance with the terms of their listing, the manufacturer s instructions, and the following standards where applicable. [NFPA 96:10.2.6] (1) NFPA 12, Standard on Carbon Dioxide Extinguishing Systems (2) NFPA 13, Standard for the Installation of Sprinkler Systems (3) NFPA 17, Standard for Dry Chemical Extinguishing Systems (4) NFPA 17A, Standard for Wet Chemical Extinguishing Systems In existing systems, when changes in the cooking media, positioning, or replacement of cooking equipment occur, the fire-extinguishing system shall be made to comply with [NFPA 96: ] Modification of Existing Hood Systems Any abandoned pipe or conduit from a previous installation shall be removed from within the hood, plenum, and exhaust duct. [NFPA 96: ] Penetrations and holes resulting from the removal of conduit or piping shall be sealed with listed or equivalent liquid tight sealing devices. [NFPA 96: ] The addition of obstructions to spray patterns from the cooking appliance nozzle(s) such as baffle plates, shelves, or any modification shall not be permitted. [NFPA 96: ] Changes or modifications to the hazard after installation of the fire extinguishing systems shall result in reevaluation of the system design by a properly trained and qualified person(s) or company. [NFPA 96: ] Fixed Baffle Hoods with Water Wash. Grease removal devices, hood exhaust plenums, and exhaust ducts requiring protection in accordance with Section shall be permitted to be protected by a listed fixed baffle hood containing a constant or fire-actuated water-wash system that is listed and in compliance with UL 300 or other equivalent standards and shall be installed in accordance with the requirements of their listing. [NFPA 96: ] The water for listed, fixed baffle hood assemblies shall be permitted to be supplied from the domestic water supply when the minimum water pressure and flow are provided in accordance with the terms of the listing. [NFPA 96: ] The water supply shall be monitored by an annunciated low water pressure switch controlled by a supervised water supply control valve. [NFPA 96: ] The water wash in the fixed baffle hood shall be activated by the cooking equipment extinguishing system. [NFPA 96: ] A water-wash system approved to be used for protection of the grease removal device(s), hood exhaust plenum(s), exhaust duct(s), or combination thereof shall include instruction and appropriate electrical interface for simultaneous activation of the water-wash system from an automatic fire-extinguishing system, where the automatic fire-extinguishing system is used for cooking equipment protection only. [NFAP 96: ] 35

36 Where the fire-extinguishing system provides protection for the cooking equipment, hood, and duct, activation of the water wash shall not be required. [NFPA 96: ] The water required for listed automatic fire-extinguishing systems shall be permitted to be supplied from the domestic water supply where the minimum water pressure and flow are provided in accordance with the terms of the listing. The water supply shall be controlled by a supervised water supply control valve. [NFPA 98:10.2.9] Water Valve Supervision. Valves controlling the water supply to listed fixed baffle hood assemblies, automatic fire-extinguishing systems, or both shall be listed indicating type of valve and shall be supervised open by one of the following methods: (1) Central station, proprietary, or remote station alarm service (2) Local alarm service that will cause the sounding of an audible signal at a constantly attended point (3) Locking valves open (4)* Sealing of valves and approved weekly recorded inspection. [NFPA 96: ] Simultaneous Operation. Fixed-pipe extinguishing systems in a single hazard area shall be arranged for simultaneous automatic operation upon actuation of anyone of the systems. [NFPA 96:10.3.1] Exception No. 1: Where the fixed-pipe extinguishing system is an automatic sprinkler system. Exception No. 2: A dry or wet chemical system shall be permitted to be used to protect common exhaust ductwork by one of the methods specified in NFPA 17, Standard for Dry Chemical Extinguishing Systems, or NFPA 17A, Standard for Wet Chemical Extinguishing Systems, in lieu of simultaneous automatic operation Simultaneous operation shall not be required where the fixed pipe extinguishing system is an automatic sprinkler system. [NFPA 96:10.3.2] Simultaneous operation shall not be required where dry or wet chemical system shall be permitted to be used to protect common exhaust ductwork by one of the methods specified in NFPA 17 or NFPA 17A. [NFPA 96:10.3.3] Fuel Shutoff Upon activation of any fire-extinguishing system for a cooking operation, all sources of fuel and electric power that produce heat to all equipment requiring protection by that system shall automatically shut off. [NFPA 96:10.4.1] Exception No. 1: Steam supplied from an external source. Exception No. 2: Solid-fuel cooking operations (New) Steam supplied from an external source shall not be required to automatically shut off. [NFPA 96:10.4.2] Any gas appliance not requiring protection, but located under the same ventilating equipment, shall also automatically shut off upon activation of any extinguishing system. [NFPA 96:10.4.3] Shutoff devices shall require manual reset. [NFPA 96:10.4.4] Manual Activation A readily accessible means for manual activation shall be located between forty-two (42) inches and sixty (60) forty eight inches (1,067 mm and 1, mm) above the floor, located in a path of exit or egress, and clearly identify the hazard protected. The automatic and manual means of system activation ex- 36

37 ternal to the control head or releasing device shall be separate and independent of each other so that failure of one will not impair the operation of the other. [NFPA 96:10.5.1, ] Exceptions: (1) The manual means of system activation shall be permitted to be common with the automatic means if the manual activation device is located between the control head or releasing device and the first fusible link. (2) An automatic sprinkler system (New) The manual means of system activation shall be permitted to be common with the automatic means if the manual activation device is located between the control head or releasing device and the first fusible link. [NFPA 96:10.5.3] (New) An automatic sprinkler system shall not require a manual means of system activation. [NFPA 96:10.5.4] The means for manual actuator(s) shall be mechanical and shall not rely on electrical power for actuation. [NFPA 96:10.5.5] Exception: Electrical power shall be permitted to be used for manual activation if a standby power supply is provided or if supervision is provided as per Electrical power shall be permitted to be used for manual activation if a standby power supply is provided or if supervision is provided in accordance with Section [NFPA 96:10.5.6] System Annunciation Upon activation of an automatic fire extinguishing system, an audible alarm or visual indicator shall be provided to show that the system has activated. [NPFA 96:10.6.1] Where a fire alarm signaling system is serving the occupancy where the extinguishing system is located, the activation of the automatic fire-extinguishing system shall activate the fire alarm signaling system. [NPFA 96:10.6.2] System Supervision Where electrical power is required to operate the automatic fire-extinguishing system, it shall be monitored by a supervisory alarm, with a standby power supply provided. [NFPA 96:10.7.1] Exceptions: (1) Where automatic fire-extinguishing systems include automatic mechanical detection and actuation as a backup detection system. (2) Where fire-extinguishing systems are interconnected or interlocked with the cooking equipment power sources so that if the fire-extinguishing system becomes inoperable due to power failure, all sources of fuel or electric power that produce heat to all cooking equipment serviced by that hood shall automatically shut off System supervision shall not be required where an automatic fire-extinguishing system(s) includes automatic mechanical detection and actuation as a backup detection system. [NFPA 96:10.7.2] System supervision shall not be required where a fire-extinguishing system(s) is interconnected or interlocked with the cooking equipment power source(s) so that if the fire-extinguishing system becomes inoperable due to power failure, all sources of fuel or electric power that produce heat to all cooking equipment serviced by that hood shall automatically shut off. [NFPA 96:10.7.3] 37

38 System supervision shall not be required where an automatic fire-extinguishing system, including automatic mechanical detection and actuation, is electrically connected to a listed fire-actuated water-wash system for simultaneous operation of both systems. [NFPA 96:10.7.4] Special Design and Application Hoods containing automatic fire extinguishing systems are protected areas; therefore, these hoods are not considered obstructions to overhead sprinkler systems and shall not require floor coverage underneath. [NFPA 96:10.8.1] A single listed detection device shall be permitted for more than one appliance when installed in accordance with the terms of the listing. [NFPA 96:10.8.2] Review and Certification Where required, complete drawings of the system installation, including the hood(s), exhaust duct(s), and appliances, along with the interface of the fire-extinguishing system detectors, piping, nozzles, fuel shutoff devices, agent storage container(s), and manual actuation device(s), shall be provided submitted to the Authority Having Jurisdiction. [NFPA 96:10.9.1] (New) Installation Requirements Installation of systems shall be performed only by persons properly trained and qualified to install the specific systeem being provided. The installer shall provide certification that the installation is in agreement with the terms of the listing and the manufacturer s instructions and/or approved design. [NFPA 96: ] Portable Fire Extinguishers Portable fire extinguishers shall be installed in kitchen cooking areas in accordance with NFPA 10, Standard for Portable Fire Extinguishers. Such extinguishers shall use agents that saponify upon contact with hot grease, such as sodium bicarbonate and potassium bicarbonate dry chemical and potassium carbonate solutions. Class B gas-type portables such as CO2 and halon shall not be permitted in kitchen cooking areas. Manufacturer s recommendations shall be followed. [NFPA 96: ] Portable fire extinguishers listed specifically for use in the kitchen cooking areas shall also be permitted Other fire extinguishers in the kitchen area shall be installed in accordance with NFPA 10, Standard for Portable Fire Extinguishers. [NFPA 96: ] Solid-Fuel Fire-Extinguishing Equipment. Where solid-fuel cooking equipment is served by fireextinguishing equipment, the provisions of Section shall apply. 1. Paragraphs in Section 513 that are extracted from NFPA 96 are identified. 2. Exceptions to , , , , and are replaced with new text extracted from NFPA A new section is proposed for Installation Requirements, which are not part of 513.9, Review and Certification 4. Section is augmented with additional extracts from NFPA 96 to provide more complete coverage in the UMC. 5. New Section is added with coverage of Water Valve Supervision, to provide more complete coverage in the UMC. 38

39 COMMITTEE ACTION: Accept as Amended by the TC Amend proposal as follows: Fire-Extinguishing Equipment General Requirements Fire-extinguishing equipment for the protection of grease removal devices, hood exhaust plenums, and exhaust duct systems shall be provided. [NFPA 96:10.1.1] Cooking equipment that produces grease-laden vapors (such as, but not limited to, deep-fat fryers, ranges, griddles, broilers, woks, tilting skillets, and braising pans) shall be protected by fire-extinguishing equipment. [NFPA 96:10.1.2] Types of Equipment Fire-extinguishing equipment shall include both automatic fire-extinguishing systems as primary protection and portable fire extinguishers as secondary backup. [NFPA 96:10.2.1] A placard identifying the use of the extinguisher as secondary backup means to the automatic fire suppression system shall be conspicuously placed near each portable fire extinguisher in the cooking area. [NFPA 96:10.2.2] Automatic fire-extinguishing systems shall comply with standard UL 300, Fire Testing of Fire Extinguishing Systems for Protection of Restaurant Cooking Areas, or other equivalent standards and shall be installed in accordance with their listings. [NFPA 96:10.2.3] Exception: Automatic fire-extinguishing equipment provided as part of listed recirculating systems complying with standard UL 197, Standard for Safety Commercial Electric Cooking Appliances. [NFPA 96:10.2.5] Automatic fire-extinguishing systems shall be installed in accordance with the terms of their listing, the manufacturer s instructions, and the following standards where applicable. [NFPA 96:10.2.6] (1) NFPA 12, Standard on Carbon Dioxide Extinguishing Systems (2) NFPA 13, Standard for the Installation of Sprinkler Systems (3) NFPA 17, Standard for Dry Chemical Extinguishing Systems (4) NFPA 17A, Standard for Wet Chemical Extinguishing Systems In existing systems, when changes in the cooking media, positioning, or replacement of cooking equipment occur, the fire-extinguishing system shall be made to comply with [NFPA 96: ] Modification of Existing Hood Systems Any abandoned pipe or conduit from a previous installation shall be removed from within the hood, plenum, and exhaust duct. [NFPA 96: ] Penetrations and holes resulting from the removal of conduit or piping shall be sealed with listed or equivalent liquid tight sealing devices. [NFPA 96: ] The addition of obstructions to spray patterns from the cooking appliance nozzle(s) such as baffle plates, shelves, or any modification shall not be permitted. [NFPA 96: ] Changes or modifications to the hazard after installation of the fire extinguishing systems shall result in reevaluation of the system design by a properly trained and qualified person(s) or company. [NFPA 96: ] 39

40 Fixed Baffle Hoods with Water Wash. Grease removal devices, hood exhaust plenums, and exhaust ducts requiring protection in accordance with Section shall be permitted to be protected by a listed fixed baffle hood containing a constant or fire-actuated water-wash system that is listed and in compliance with UL 300 or other equivalent standards and shall be installed in accordance with the requirements of their listing. [NFPA 96: ] The water for listed, fixed baffle hood assemblies shall be permitted to be supplied from the domestic water supply when the minimum water pressure and flow are provided in accordance with the terms of the listing. [NFPA 96: ] The water supply shall be controlled by a supervised water supply control valve. [NFPA 96: ] The water wash in the fixed baffle hood shall be activated by the cooking equipment extinguishing system. [NFPA 96: ] A water-wash system approved to be used for protection of the grease removal device(s), hood exhaust plenum(s), exhaust duct(s), or combination thereof shall include instruction and appropriate electrical interface for simultaneous activation of the water-wash system from an automatic fire-extinguishing system, where the automatic fire-extinguishing system is used for cooking equipment protection only. [NFAP 96: ] Where the fire-extinguishing system provides protection for the cooking equipment, hood, and duct, activation of the water wash shall not be required. [NFPA 96: ] The water required for listed automatic fire-extinguishing systems shall be permitted to be supplied from the domestic water supply where the minimum water pressure and flow are provided in accordance with the terms of the listing. The water supply shall be controlled by a supervised water supply control valve. [NFPA 98:10.2.9] Water Valve Supervision. Valves controlling the water supply to listed fixed baffle hood assemblies, automatic fire-extinguishing systems, or both shall be listed indicating type of valve and shall be supervised open by one of the following methods: (1) Central station, proprietary, or remote station alarm service (2) Local alarm service that will cause the sounding of an audible signal at a constantly attended point (3) Locking valves open (4)* Sealing of valves and approved weekly recorded inspection [NFPA 96: ] Simultaneous Operation. Fixed-pipe extinguishing systems in a single hazard area shall be arranged for simultaneous automatic operation upon actuation of anyone of the systems. [NFPA 96:10.3.1] Simultaneous operation shall not be required where the fixed pipe extinguishing system is an automatic sprinkler system. [NFPA 96:10.3.2] Simultaneous operation shall not be required where dry or wet chemical system shall be permitted to be used to protect common exhaust ductwork by one of the methods specified in NFPA 17 or NFPA 17A. [NFPA 96:10.3.3] Fuel Shutoff Upon activation of any fire-extinguishing system for a cooking operation, all sources of fuel and electric power that produce heat to all equipment requiring protection by that system shall automatically shut off. [NFPA 96:10.4.1] 40

41 Exception No. 2: Solid-fuel cooking operations Steam supplied from an external source shall not be required to automatically shut off. [NFPA 96:10.4.2] Any gas appliance not requiring protection, but located under the same ventilating equipment, shall also automatically shut off upon activation of any extinguishing system. [NFPA 96:10.4.3] Shutoff devices shall require manual reset. [NFPA 96:10.4.4] Manual Activation A readily accessible means for manual activation shall be located between forty-two (42) inches and forty-eight (48) inches (1,067 mm and 1219 mm) above the floor, located in a path of exit or egress, and clearly identify the hazard protected. The automatic and manual means of system activation external to the control head or releasing device shall be separate and independent of each other so that failure of one will not impair the operation of the other. [NFPA 96:10.5.1, ] The manual means of system activation shall be permitted to be common with the automatic means if the manual activation device is located between the control head or releasing device and the first fusible link. [NFPA 96:10.5.3] An automatic sprinkler system shall not require a manual means of system activation. [NFPA 96:10.5.4] The means for manual actuator(s) shall be mechanical and shall not rely on electrical power for actuation. [NFPA 96:10.5.5] Electrical power shall be permitted to be used for manual activation if a standby power supply is provided or if supervision is provided in accordance with Section [NFPA 96:10.5.6] System Annunciation Upon activation of an automatic fire extinguishing system, an audible alarm or visual indicator shall be provided to show that the system has activated. [NFPA 96:10.6.1] Where a fire alarm signaling system is serving the occupancy where the extinguishing system is located, the activation of the automatic fire-extinguishing system shall activate the fire alarm signaling system. [NFPA 96:10.6.2] System Supervision Where electrical power is required to operate the automatic fire-extinguishing system, it shall be monitored by a supervisory alarm, with a standby power supply provided. [NFPA 96:10.7.1] System supervision shall not be required where an automatic fire-extinguishing system(s) includes automatic mechanical detection and actuation as a backup detection system. [NFPA 96:10.7.2] System supervision shall not be required where a fire-extinguishing system(s) is interconnected or interlocked with the cooking equipment power source(s) so that if the fire extinguishing system becomes inoperable due to power failure, all sources of fuel or electric power that produce heat to all cooking equipment serviced by that hood shall automatically shut off. [NFPA 96:10.7.3] 41

42 System supervision shall not be required where an automatic fire-extinguishing system, including automatic mechanical detection and actuation, is electrically connected to a listed fire-actuated water-wash system for simultaneous operation of both systems. [NFPA 96:10.7.4] Special Design and Application Hoods containing automatic fire extinguishing systems are protected areas; therefore, these hoods are not considered obstructions to overhead sprinkler systems and shall not require floor coverage underneath. [NFPA 96:10.8.1] A single listed detection device shall be permitted for more than one appliance when installed in accordance with the terms of the listing. [NFPA 96:10.8.2] Review and Certification Where required, complete drawings of the system installation, including the hood(s), exhaust duct(s), and appliances, along with the interface of the fire-extinguishing system detectors, piping, nozzles, fuel shutoff devices, agent storage container(s), and manual actuation device(s), shall be submitted to the Authority Having Jurisdiction. [NFPA 96:10.9.1] Installation Requirements Installation of systems shall be performed only by persons properly trained and qualified to install the specific system being provided. The installer shall provide certification that the installation is in agreement with the terms of the listing and the manufacturer s instructions and/or approved design. [NFPA 96:10.9.2] Portable Fire Extinguishers Portable fire extinguishers shall be installed in kitchen cooking areas in accordance with NFPA 10, Standard for Portable Fire Extinguishers. Such extinguishers shall use agents that specify upon contact with hot grease, such as sodium bicarbonate and potassium bicarbonate dry chemical and potassium carbonate solutions. Class B gas-type portables such as CO2 and halon shall not be permitted in kitchen cooking areas. Manufacturer s recommendations shall be followed. [NFPA 96: ] Portable fire extinguishers listed specifically for use in the kitchen cooking areas shall also be permitted Other fire extinguishers in the kitchen area shall be installed in accordance with NFPA 10, Standard for Portable Fire Extinguishers. [NFPA 96: ] Solid-Fuel Fire-Extinguishing Equipment. Where solid-fuel cooking equipment is served by fire extinguishing equipment, the provisions of Section shall apply. COMMITTEE STATEMENT: To make corrections to the proposed text in accordance with NFPA 96 and the 2006 UMC text. A PUBLIC COMMENT(S) WAS SUBMITTED FOR REVIEW AND CONSIDERATION. PUBLIC COMMENT: Submitter: Ted Lemoff, NFPA 42

43 Request to accept the code change proposal as modified by this public comment through (text remains unchanged) Automatic fire-extinguishing systems shall comply with standard UL 300, Fire Testing of Fire Extinguishing Systems for Protection of Restaurant Cooking Areas, or other equivalent standards and shall be installed in accordance with their listings. [NFPA 96:10.2.3] Exception: Automatic fire-extinguishing equipment provided as part of listed recirculating systems complying with standard UL 197, Standard for Safety Commercial Electric Cooking Appliances 710B, Outline of Investigation for Recirculating Exhaust System. [NFPA 96:10.2.5] through (text remains unchanged) Changes or modifications to the hazard after installation of the fire extinguishing systems shall result in reevaluation of the system design by a properly trained, and qualified, and certified person(s) or company. [NFPA 96: ] through (text remains unchanged) A readily accessible means for manual activation shall be located between forty-two (42) inches and forty-eight (48) inches (1,067 mm and 1219 mm) above the floor, located in a path of exit or egress, and clearly identify the hazard protected. A manual actuation device shall be located a minimum of 10 ft (3 m) when possible and a maximum of 20 ft (6 m) from the protected kitchen appliance(s) within the path of egress. Manual actuation using a cable-operated pull station shall not require more than 40 lb (178 N) of force, with a pull movement not to exceed 14 in. (356 mm) to actuate the fire suppression system. The automatic and manual means of system activation external to the control head or releasing device shall be separate and independent of each other so that failure of one will not impair the operation of the other. [NFPA 96:10.5.1, ] through (text remains unchanged) A single listed detection device, listed with the extinguishing system, shall be permitted for more than one appliance when installed in accordance with the terms of the listing. [NFPA 96:10.8.2] through (text remains unchanged) ( ) This comment reflects a change in a requirement extracted from NFPA 96. UL 710B is the correct standard for testing recirculating hoods therefore this reference requires changing. ( ) This comment updates text extracted from NFPA 96. NFPA 96, in paragraph requires that individuals who perform maintenance be certified therefore; individuals that evaluate the system design should also be certified. Fire extinguishing system manufacturers certify individuals not companies. ( ) This comment updates text extracted from NFPA 96. This change to NFPA 96 provides specific locations for manual activation devices near kitchen employees to quickly react to a fire event involving kitchen appliance. This revised text will also limit the maximum force required to manually activate a pull cable, for example. ( ) 43

44 This comment updates text extracted from NFPA 96. It was revised because current requirement could be construed as being able to utilize listed detection devices that may not necessarily be listed with the system, as long as they are used within the terms of their listing. Item # 61 Comment Seq # 15 UMC SUBMITTER: Theodore C. Lemoff NFPA Revise text as follows: Procedures for the Use and Maintenance of Equipment Operating Procedures Exhaust systems shall be operated whenever cooking equipment is turned on. [NFPA 96: ] Filter-equipped exhaust systems shall not be operated with filters removed. [NFPA 96: ] Openings provided for replacing air exhausted through ventilating equipment shall not be restricted by covers, dampers, or any other means that would reduce the operating efficiency of the exhaust system. [NFPA 96: ] Instructions for manually operating the fire-extinguishing system shall be posted conspicuously in the kitchen and shall be reviewed periodically with employees by the management. [NFPA 96: ] Listed exhaust hoods shall be operated in accordance with the terms of their listings and the manufacturer s instructions. [NFPA 96: ] Cooking equipment shall not be operated while its fire-extinguishing system or exhaust system is nonoperational or otherwise impaired. [NFPA 96: ] Secondary filtration and pollution control equipment shall be operated in accordance with the terms of their listing and the manufacturer s recommendations. [NFPA 96: ] Inspection and maintenance of equipment allowed in Section shall be conducted by properly trained and qualified persons at a frequency determined by the manufacturer s instructions or equipment listing. [NFPA 96: ] Inspection. Maintenance of the fire-extinguishing system and listed exhaust hoods containing a constant or fire-actuated water system that is listed to extinguish a fire in the grease removal devices, hood exhaust plenums, and exhaust ducts shall be made by properly trained, qualified, and certified person(s) or company acceptable to the Authority Having Jurisdiction at least every six (6) months. [NFPA ] All actuation components, including remote manual pull stations, mechanical or electrical devices, detectors, actuators, and fire-actuated dampers, shall be checked for proper operation during the inspection in accordance with the manufacturer s listed procedures. In addition to these requirements, the specific inspection requirements of the applicable NFPA standard shall also be followed. [NFPA 96: &11.2.3] 44

45 Fusible links (including fusible links on fire damper assemblies) and automatic sprinkler heads shall be replaced at least semiannually, or more frequently if necessary where required by the manufacturer. [NFPA 96: ] The year of manufacture and the date of installation of the fusible links shall be marked on the system inspection tag. The tag shall be signed or initialed by the installer. [NFPA 96:11.2.5] Other detection devices not including fusible links and automatic sprinklers shall be serviced or replaced in accordance with the manufacturer s recommendations. [NFPA 96:11.2.6] Where automatic bulb-type sprinklers or spray nozzles are used and annual examination shows no buildup of grease or other material on the sprinkler or spray nozzles, annual replacement shall not be required. [NFPA 96:11.2.7] If required, certificates of inspection and maintenance shall be provided forwarded to the Authority Having Jurisdiction. [NFPA 96:11.1.8] If required, certificates of inspection and maintenance shall be provided Cleaning Hoods, grease removal devices, fans, ducts, and other appurtenances shall be cleaned to bare metal or the original factory coating at frequent intervals prior to surfaces becoming heavily contaminated with grease or oily sludge. After the exhaust system is cleaned, it shall not be coated with powder or other substance. The entire exhaust system shall be inspected by a properly trained, qualified, and certified company or person(s) in accordance with Table Upon inspection, if found to be contaminated with deposits from grease laden vapors, the contaminated portions of the exhaust system shall be cleaned by a properly trained, qualified, and certified company or person(s) acceptable to the Authority Having Jurisdiction in accordance with Section [NFPA 96: ] When a vent-cleaning service is used, a certificate showing date of inspection or cleaning shall be maintained on the premises. After cleaning is completed, the vent-cleaning contractor shall place or display within the kitchen area a label indicating the date cleaned and the name of the servicing company. It shall also indicate areas not cleaned Flammable solvents or other flammable cleaning aids shall not be used At the start of the cleaning process, electrical switches that could be activated accidentally shall be locked out Components of the fire suppression system shall not be rendered inoperable during the cleaning process. Exception: Servicing by properly trained and qualified persons in accordance with Section Care shall be taken not to apply cleaning chemicals on fusible links or other detection devices of the automatic extinguishing system When cleaning procedures are completed, all electrical switches and system components shall be returned to an operable state. All access panels (doors) and cover plates shall be replaced. Dampers and diffusers shall be positioned for proper airflow. 45

46 514.3 Inspection for Grease Buildup The entire exhaust system shall be inspected for grease buildup by a properly trained, qualified, and certified company or person(s) acceptable to the Authority Having Jurisdiction in accordance with Table 5-4 TABLE 5-4 Exhaust System Inspection Schedule [NFPA 96:Table 1.3] (Portions of table not shown do not change) Hoods, grease removal devices, fans, ducts, and other appurtenances shall be cleaned to remove combustible contaminants prior to surfaces becoming heavily contaminated with grease or oily sludge. [NFPA 96:11.4.2] At the start of the cleaning process, electrical switches that could be activated accidentally shall be locked out. [NFPA 96:11.4.3] Components of the fire suppression system shall not be rendered inoperable during the cleaning process. [NFPA 96:11.4.4] Fire-extinguishing systems shall be permitted to be rendered inoperable during the cleaning process where serviced by properly trained and qualified persons. [NFPA 96:11.4.5] Flammable solvents or other flammable cleaning aids shall not be used. [NFPA 96:11.4.6] Cleaning chemicals shall not be applied on fusible links or other detection devices of the automatic extinguishing system. [NFPA 96:11.4.7] After the exhaust system is cleaned, it shall not be coated with powder or other substance. [NFPA 96:11.4.8] When cleaning procedures are completed, all access panels (doors) and cover plates shall be restored to their normal operational condition. [NFPA 96:11.4.9] Dampers and diffusers shall be positioned for proper airflow. [NFPA 96: ] When cleaning procedures are completed, all electrical switches and system components shall be returned to an operable state. [NFPA 96: ] When a vent cleaning service is used, a certificate showing date of inspection or cleaning shall be maintained on the premises. [NFPA 96: ] After cleaning is completed, the vent cleaning contractor shall place or display within the kitchen area a label indicating the date cleaned, the name of the servicing company, and areas not cleaned. [NFPA 96: ] Where required, certificates of inspection and cleaning shall be submitted to the authority having jurisdiction. [NFPA 96: ] Operation, Maintenance, and Inspection of Solid-Fuel Cooking Equipment. Cleaning of Exhaust Systems. Where solid-fuel cooking equipment is used, the special provisions of Section shall apply Upon inspection, if found to be contaminated with deposits from grease-laden vapors, the contaminated portions of the exhaust system shall be cleaned by a properly trained, qualified, and certified company or person(s) acceptable to the authority having jurisdiction. [NFPA 96:11.4.1] Hoods, grease removal devices, fans, ducts, and other appurtenances shall be cleaned to remove 46

47 combustible contaminants prior to surfaces becoming heavily contaminated with grease or oily sludge. [NFPA 96:11.4.2] At the start of the cleaning process, electrical switches that could be activated accidentally shall be locked out. [NFPA 96:11.4.3] Components of the fire suppression system shall not be rendered inoperable during the cleaning process. [NFPA 96:11.4.4] Fire-extinguishing systems shall be permitted to be rendered inoperable during the cleaning process where serviced by properly trained and qualified persons. [NFPA 96:11.4.5] Flammable solvents or other flammable cleaning aids shall not be used. [NFPA 96:11.4.6] Cleaning chemicals shall not be applied on fusible links or other detection devices of the automatic extinguishing system. [NFPA 96:11.4.7] After the exhaust system is cleaned, it shall not be coated with powder or other substance. [NFPA 96:11.4.8] When cleaning procedures are completed, all access panels (doors) and cover plates shall be restored to their normal operational condition. [NFPA 96:11.4.9] Dampers and diffusers shall be positioned for proper airflow. [NFPA 96: ] When cleaning procedures are completed, all electrical switches and system components shall be returned to an operable state. [NFPA 96: ] When a vent cleaning service is used, a certificate showing date of inspection or cleaning shall be maintained on the premises. [NFPA 96: ] After cleaning is completed, the vent cleaning contractor shall place or display within the kitchen area a label indicating the date cleaned, the name of the servicing company, and areas not cleaned. [NFPA 96: ] Where required, certificates of inspection and cleaning shall be submitted to the authority having jurisdiction. [NFPA 96: ] 1. Paragraphs in Section 514 that are extracted from NFPA 96 are identified. 2. Section is renamed Inspection for Grease Buildup, and made consistent with NFPA Section 514.4, Operations, Maintenance, and Inspection of solid Fuel Cooking Equipment, is renamed Cleaning of Exhaust Systems, and text from NFPA 96 is added. COMMITTEE ACTION: Accept as Amended by the TC Amend proposal as follows: Procedures for the Use and Maintenance of Equipment Operating Procedures Exhaust systems shall be operated whenever cooking equipment is turned on. [NFPA 96:11.1.1] Filter-equipped exhaust systems shall not be operated with filters removed. [NFPA 96:11.1.2] 47

48 Openings provided for replacing air exhausted through ventilating equipment shall not be restricted by covers, dampers, or any other means that would reduce the operating efficiency of the exhaust system. [NFPA 96:11.1.3] Instructions for manually operating the fire-extinguishing system shall be posted conspicuously in the kitchen and shall be reviewed periodically with employees by the management. [NFPA 96:11.1.4] Listed exhaust hoods shall be operated in accordance with the terms of their listings and the manufacturer s instructions. [NFPA 96:11.1.5] Cooking equipment shall not be operated while its fire-extinguishing system or exhaust system is non-operational or otherwise impaired. [NFPA 96:11.1.6] Secondary filtration and pollution control equipment shall be operated in accordance with the terms of their listing and the manufacturer s recommendations. [NFPA 96:11.1.7] Inspection and maintenance of equipment allowed in Section shall be conducted by properly trained and qualified persons at a frequency determined by the manufacturer s instructions or equipment listing. [NFPA 96:11.1.8] Inspection. Maintenance of the fire-extinguishing system and listed exhaust hoods containing a constant or fire-actuated water system that is listed to extinguish a fire in the grease removal devices, hood exhaust plenums, and exhaust ducts shall be made by properly trained, qualified, and certified person(s) or company acceptable to the Authority Having Jurisdiction at least every six (6) months. [NFPA 96:11.2.1] All actuation components, including remote manual pull stations, mechanical or electrical devices, detectors, actuators, and fire-actuated dampers, shall be checked for proper operation during the inspection in accordance with the manufacturer s listed procedures. In addition to these requirements, the specific inspection requirements of the applicable NFPA standard shall also be followed. [NFPA 96: &11.2.3] Fusible links (including fusible links on fire damper assemblies) and automatic sprinkler heads shall be replaced at least semiannually, or more frequently if necessary where required by the manufacturer. [NFPA 96:11.2.4] The year of manufacture and the date of installation of the fusible links shall be marked on the system inspection tag. The tag shall be signed or initialed by the installer. [NFPA 96:11.2.5] Other detection devices not including fusible links and automatic sprinklers shall be serviced or replaced in accordance with the manufacturer s recommendations. [NFPA 96:11.2.6] Where automatic bulb-type sprinklers or spray nozzles are used and annual examination shows no buildup of grease or other material on the sprinkler or spray nozzles, annual replacement shall not be required. [NFPA 96:11.2.7] If required, certificates of inspection and maintenance shall be forwarded to the Authority Having Jurisdiction. [NFPA 96:11.1.8] If required, certificates of inspection and maintenance shall be provided Inspection for Grease Buildup The entire exhaust system shall be inspected for grease buildup by a properly trained, qualified, and certified company or person(s) acceptable to the Authority Having Jurisdiction in accordance with Table

49 TABLE 5-4 Exhaust System Inspection Schedule [NFPA 96:Table 1.3] (Portions of table not shown do not change) Hoods, grease removal devices, fans, ducts, and other appurtenances shall be cleaned to remove combustible contaminants prior to surfaces becoming heavily contaminated with grease or oily sludge. [NFPA 96:11.4.2] At the start of the cleaning process, electrical switches that could be activated accidentally shall be locked out. [NFPA 96:11.4.3] Components of the fire suppression system shall not be rendered inoperable during the cleaning process. [NFPA 96:11.4.4] Fire-extinguishing systems shall be permitted to be rendered inoperable during the cleaning process where serviced by properly trained and qualified persons. [NFPA 96:11.4.5] Flammable solvents or other flammable cleaning aids shall not be used. [NFPA 96:11.4.6] Cleaning chemicals shall not be applied on fusible links or other detection devices of the automatic extinguishing system. [NFPA 96:11.4.7] After the exhaust system is cleaned, it shall not be coated with powder or other substance. [NFPA 96:11.4.8] When cleaning procedures are completed, all access panels (doors) and cover plates shall be restored to their normal operational condition. [NFPA 96:11.4.9] Dampers and diffusers shall be positioned for proper airflow. [NFPA 96: ] When cleaning procedures are completed, all electrical switches and system components shall be returned to an operable state. [NFPA 96: ] When a vent cleaning service is used, a certificate showing date of inspection or cleaning shall be maintained on the premises. [NFPA 96: ] After cleaning is completed, the vent cleaning contractor shall place or display within the kitchen area a label indicating the date cleaned, the name of the servicing company, and areas not cleaned. [NFPA 96: ] Where required, certificates of inspection and cleaning shall be submitted to the authority having jurisdiction. [NFPA 96: ] Cleaning of Exhaust Systems Upon inspection, if found to be contaminated with deposits from grease-laden vapors, the contaminated portions of the exhaust system shall be cleaned by a properly trained, qualified, and certified company or person(s) acceptable to the authority having jurisdiction. [NFPA 96:11.4.1] Hoods, grease removal devices, fans, ducts, and other appurtenances shall be cleaned to remove combustible contaminants prior to surfaces becoming heavily contaminated with grease or oily sludge. [NFPA 96:11.4.2] At the start of the cleaning process, electrical switches that could be activated accidentally shall be locked out. [NFPA 96:11.4.3] 49

50 Components of the fire suppression system shall not be rendered inoperable during the cleaning process. [NFPA 96:11.4.4] Fire-extinguishing systems shall be permitted to be rendered inoperable during the cleaning process where serviced by properly trained and qualified persons. [NFPA 96:11.4.5] Flammable solvents or other flammable cleaning aids shall not be used. [NFPA 96:11.4.6] Cleaning chemicals shall not be applied on fusible links or other detection devices of the automatic extinguishing system. [NFPA 96:11.4.7] After the exhaust system is cleaned, it shall not be coated with powder or other substance. [NFPA 96:11.4.8] When cleaning procedures are completed, all access panels (doors) and cover plates shall be restored to their normal operational condition. [NFPA 96:11.4.9] Dampers and diffusers shall be positioned for proper airflow. [NFPA 96: ] When cleaning procedures are completed, all electrical switches and system components shall be returned to an operable state. [NFPA 96: ] When a vent cleaning service is used, a certificate showing date of inspection or cleaning shall be maintained on the premises. [NFPA 96: ] After cleaning is completed, the vent cleaning contractor shall place or display within the kitchen area a label indicating the date cleaned, the name of the servicing company, and areas not cleaned. [NFPA 96: ] Where required, certificates of inspection and cleaning shall be submitted to the authority having jurisdiction. [NFPA 96: ] COMMITTEE STATEMENT: To make corrections to the proposed text in accordance with NFPA 96 and the 2006 UMC text. A PUBLIC COMMENT(S) WAS SUBMITTED FOR REVIEW AND CONSIDERATION. PUBLIC COMMENT 1: Submitter: Ted Lemoff, NFPA Request to accept the code change proposal as modified by this public comment. Sections through (text remains unchanged) Upon inspection, if the exhaust systems is found to be contaminated with deposits from grease-laden vapors, the contaminated portions of the exhaust system shall be cleaned by a properly trained, qualified, and certified company or person(s) acceptable to the authority having jurisdiction. [NFPA 96: ] Sections through (text remains unchanged). 50

51 Insert and renumber: When an access panel is removed, a service company label or tag preprinted with the name of the company and giving the date of inspection or cleaning shall be affixed near the affected access panels. [NFPA 96: ] ( ) The extracted language in the proposal was missing some key words. Revised language is extracted from NFPA 96 section ( ) This comment proposes a new paragraph that was added to the 2008 edition of NFPA 96. The paragraph will provide better accountability for maintaining the system. PUBLIC COMMENT 2: Submitter: Ted Lemoff, NFPA Request to accept the code change proposal as modified by this public comment. Section (text remains unchanged) When a vent cleaning service is used, a certificate showing date of inspection or cleaning shall be maintained on the premises. When an exhaust cleaning service is used, a certificate showing the name of the servicing company, the name of the person performing the work, and the date of inspection or cleaning shall be maintained on the premises. [NFPA 96: ] After cleaning is completed, the vent cleaning contractor shall place or display within the kitchen area a label indicating the date cleaned, the name of the servicing company, and areas not cleaned. After cleaning or inspection is completed, the exhaust cleaning company and the person performing the work at the location shall provide the owner of the system with a written report that also specifies areas that were inaccessible or not cleaned. [NFPA 96: ] Where required, certificates of inspection and cleaning and reports of areas not cleaned shall be submitted to the Authority Having Jurisdiction. [NFPA 96: ] ( & ) This comment proposes a change which was made in the 2008 edition of NFPA 96. The revised text of the two sections will accomplish two goals. Presently there is redundancy in what is requested. Secondly, a trained, qualified and certified inspector or exhaust system cleaner should be able to assist in identifying to the owner of the system any fire safety issues the exhaust system may have. ( ) The insurance companies are increasingly requesting more information on the condition of the exhaust system. They want to know when there is a problem with these systems. Vigilance in reporting to the AHJ or insurance companies will create greater accountability on the part of both the system owner and those charged with maintaining the system. 51

52 Item # 63 Comment Seq # 16 UMC SUBMITTER: Theodore C. Lemoff NFPA Revise text as follows: Recirculating Systems General Requirements. Recirculating systems containing or for use with appliances used in processes producing smoke or grease-laden vapors shall be equipped with components complying with the following: (A) The clearance requirements of Section (B) A hood complying with the requirements of Section (C) Grease removal devices complying with Section (D) The air movement requirements of Sections and (E) Auxiliary equipment (such as particulate and odor removal devices) complying with Section (F) Fire-extinguishing equipment complying with the requirements of Section Exception: References to ducts in Sections and (G) The use and maintenance requirements of (H) The minimum safety requirements of Section (I) All the requirements of this chapter. [NFPA 96: 13.1] Design Restrictions. All recirculating systems shall comply with Section [NFPA 96: 13.2] Only gas- or electrically fueled cooking appliances shall be used. Gas-fueled appliances shall not have the combustion flue outlet(s) directly connected to the recirculating system. Gas-fueled appliances shall have a minimum eighteen (18) inch (457.2 mm) clearance from the flue outlet to the filter inlet in accordance with Section and shall meet the installation requirements of NFPA 54, National Fuel Gas Code, or NFPA 58, Liquefied Petroleum Gas Code. [NFPA 96: ] Recirculating systems shall be listed with a testing laboratory. There shall be no substitution or exchange of cooking appliances, filter components, blower components, or fire extinguishing system components that would violate the listing of the appliance. [NFPA 96: ] A recirculating system shall not use cooking equipment that exceeds that recirculating system s labeled maximum limits for that type of equipment, stated in maximum energy input, maximum cooking temperature, and maximum square area of cooking surface or cubic volume of cooking cavity. [NFPA96:13.2.6] The listing label shall show the type(s) of cooking equipment tested and the maximum limits specified in [NFPA 96: ] A fire-actuated damper shall be installed at the exhaust outlet of the system. The damper shall be constructed of at least the same gauge as the shell. The fire damper shall be constructed of at least the same gauge as the shell. The actuation device shall have a maximum temperature rating of 375 F (190 C). [NFPA 96: ] No electrical wiring shall be installed in the interior sections of the hood plenum that might become exposed to grease. Exception: As permitted by NFPA 70, National Electrical Code. 52

53 The power supply of any electrostatic precipitator (ESP) shall be of the cold spark, ferro-resonant type in that the voltage falls off as the current draw of a short increases. [NFPA 96: ] Listing evaluation shall include the following: (A) Capture and containment of vapors at published and labeled airflows. (B) Grease discharge at the exhaust outlet of the system not to exceed an average of 5 mg/m3 of exhausted air sampled from that equipment at maximum amount of product that is capable of being processed over a continuous eight (8) hour test per EPA Test Method 202, Determination of Condensable Particulate Emissions for Stationary Sources, with the system operating at its minimum listed airflow. (C) Listing and labeling of clearance to combustibles from all sides, top, and bottom. (D) Electrical connection in the field in accordance with NFPA 70, National Electrical Code. (E) Interlocks on all removable components that lie in the path of airflow within the unit to ensure that they are in place during operation of the cooking appliance. [NFPA 96: ] Interlocks. The recirculating system shall be provided with interlocks of all critical components and operations as indicated in Sections through such that, if any of these interlocks are interrupted, the cooking appliance shall not be able to operate. [NFPA 96: 13.3] All closure panels encompassing airflow sections shall have interlocks to ensure the panels are in place and fully sealed. [NFPA 96: ] Each filter component (grease and odor) shall have an interlock to prove the component is in place. [NFPA 96: ] ESP Interlocks Each ESP shall have a sensor to prove its performance is as designed, with no interruption of the power to exceed two (2) minutes. [NFPA 96: ] This The sensor shall be a manual reset device or circuit. [NFPA 96: ] An airflow switch or transducer shall be provided after the last filter component to ensure that a minimum airflow is maintained. This device opens the interlock circuit when the airflow falls 25 percent below the system s normal operating flow or 10 percent below its listed minimum rating, whichever is lower. This switch or transducer shall be a manual reset device or circuit. [NFPA 96: ] Location and Application Restrictions. The location of recirculating systems shall be approved by the Authority Having Jurisdiction. Items to be reviewed in the fire risk assessment shall include, but not be limited to, life safety, combustibility of surroundings, proximity to air vents, and total fuel load. [NFPA 96: ] Additional Fire Safety Requirements In addition to the appliance nozzle(s), a recirculating system shall be listed with the appropriate fire protection for grease filters, grease filtration, odor filtration units, and ductwork where applicable. [NFPA 96: ] In addition to any other fire-extinguishing system actuation device, there shall be a fire extinguishing system actuation device installed downstream of any ESP. [NFPA 96: ] The requirements of Section shall also apply to recirculating system locations. 53

54 516.6 Use and Maintenance Automatic or manual covers on cooking appliances, especially fryers, shall not interfere with the application of the fire suppression system. [NFPA 96: ] All filters shall be cleaned or replaced in accordance with the manufacturer s instructions. [NFPA 96: ] All ESPs shall be cleaned a minimum of once per week following manufacturer s cleaning instructions. [NFPA 96: ] The entire hood plenum and the blower section shall be cleaned a minimum of once every three (3) months. [NFPA 96: ] Inspection and testing of the total operation and all safety interlocks in accordance with the manufacturer s instructions shall be performed by qualified service personnel a minimum of once every six (6) months, or more frequently if required. [NFPA 96: ] Exception: Fire-extinguishing equipment shall be inspected in accordance with Section [NFPA 96: ] A signed and dated log of maintenance as performed in accordance with Sections and shall be available on the premises for use by the Authority Having Jurisdiction. [NFPA 96: ] 1. Paragraphs in Section 516 that are extracted from NFPA 96 are identified as such. 2. The exception to is replaced with a paragraph extracted from NFPA New is proposed to provide information on the appliance label. COMMITTEE ACTION: Accept as Amended by the TC Amend proposal as follows: Recirculating Systems General Requirements. Recirculating systems containing or for use with appliances used in processes producing smoke or grease-laden vapors shall be equipped with components complying with the following: (A) The clearance requirements of Section (B) A hood complying with the requirements of Section (C) Grease removal devices complying with Section (D) The air movement requirements of Sections and (E) Auxiliary equipment (such as particulate and odor removal devices) complying with Section (F) Fire-extinguishing equipment complying with the requirements of Section Exception: References to ducts in Sections and (G) The use and maintenance requirements of (H) The minimum safety requirements of Section (I) All the requirements of this chapter. [NFPA 96: 13.1] 54

55 516.2 Design Restrictions. All recirculating systems shall comply with Section [NFPA 96: 13.2] Only gas- or electrically fueled cooking appliances shall be used. Gas-fueled appliances shall not have the combustion flue outlet(s) directly connected to the recirculating system. Gasfueled appliances shall have a minimum eighteen (18) inch (457.2 mm) clearance from the flue outlet to the filter inlet in accordance with Section and shall meet the installation requirements of NFPA 54, National Fuel Gas Code, or NFPA 58, Liquefied Petroleum Gas Code. [NFPA 96: ] Recirculating systems shall be listed with a testing laboratory. There shall be no substitution or exchange of cooking appliances, filter components, blower components, or fire extinguishing system components that would violate the listing of the appliance. [NFPA 96: ] A recirculating system shall not use cooking equipment that exceeds that recirculating system s labeled maximum limits for that type of equipment, stated in maximum energy input, maximum cooking temperature, and maximum square area of cooking surface or cubic volume of cooking cavity. [NFPA96:13.2.6] The listing label shall show the type(s) of cooking equipment tested and the maximum limits specified in [NFPA 96: ] A fire-actuated damper shall be installed at the exhaust outlet of the system. The damper shall be constructed of at least the same gauge as the shell. The fire damper shall be constructed of at least the same gauge as the shell. The actuation device shall have a maximum temperature rating of 375 F (190 C). [NFPA 96: ] No electrical wiring shall be installed in the interior sections of the hood plenum that might become exposed to grease. Exception: As permitted by NFPA 70, National Electrical Code The power supply of any electrostatic precipitator (ESP) shall be of the cold spark, ferroresonant type in that the voltage falls off as the current draw of a short increases. [NFPA 96: ] Listing evaluation shall include the following: (A) Capture and containment of vapors at published and labeled airflows. (B) Grease discharge at the exhaust outlet of the system not to exceed an average of 5 mg/m3 of exhausted air sampled from that equipment at maximum amount of product that is capable of being processed over a continuous eight (8) hour test per EPA Test Method 202, Determination of Condensable Particulate Emissions for Stationary Sources, with the system operating at its minimum listed airflow. (C) Listing and labeling of clearance to combustibles from all sides, top, and bottom. (D) Electrical connection in the field in accordance with NFPA 70, National Electrical Code. (E) Interlocks on all removable components that lie in the path of airflow within the unit to ensure that they are in place during operation of the cooking appliance. [NFPA 96: ] Interlocks. The recirculating system shall be provided with interlocks of all critical components and operations as indicated in Sections through such that, if any of these interlocks are interrupted, the cooking appliance shall not be able to operate. [NFPA 96: 13.3] All closure panels encompassing airflow sections shall have interlocks to ensure the panels are in place and fully sealed. [NFPA 96: ] Each filter component (grease and odor) shall have an interlock to prove the component is in place. [NFPA 96: ] 55

56 ESP Interlocks Each ESP shall have a sensor to prove its performance is as designed, with no interruption of the power to exceed two (2) minutes. [NFPA 96: ] The sensor shall be a manual reset device or circuit. [NFPA 96: ] An airflow switch or transducer shall be provided after the last filter component to ensure that a minimum airflow is maintained. This device opens the interlock circuit when the airflow falls 25 percent below the system s normal operating flow or 10 percent below its listed minimum rating, whichever is lower. This switch or transducer shall be a manual reset device or circuit. [NFPA 96: ] Location and Application Restrictions. The location of recirculating systems shall be approved by the Authority Having Jurisdiction. Items to be reviewed in the fire risk assessment shall include, but not be limited to, life safety, combustibility of surroundings, proximity to air vents, and total fuel load. [NFPA 96: ] Additional Fire Safety Requirements In addition to the appliance nozzle(s), a recirculating system shall be listed with the appropriate fire protection for grease filters, grease filtration, odor filtration units, and ductwork where applicable. [NFPA 96: ] In addition to any other fire-extinguishing system actuation device, there shall be a fire extinguishing system actuation device installed downstream of any ESP. [NFPA 96:13.5.2] The requirements of Section shall also apply to recirculating system locations Use and Maintenance Automatic or manual covers on cooking appliances, especially fryers, shall not interfere with the application of the fire suppression system. [NFPA 96:13.6.1] All filters shall be cleaned or replaced in accordance with the manufacturer s instructions. [NFPA 96: ] All ESPs shall be cleaned a minimum of once per week following manufacturer s cleaning instructions. [NFPA 96:13.6.3] The entire hood plenum and the blower section shall be cleaned a minimum of once every three (3) months. [NFPA 96:13.6.4] Inspection and testing of the total operation and all safety interlocks in accordance with the manufacturer s instructions shall be performed by qualified service personnel a minimum of once every six (6) months, or more frequently if required. [NFPA 96: ] Fire-extinguishing equipment shall be inspected in accordance with Section [NFPA 96: ] A signed and dated log of maintenance as performed in accordance with Sections and shall be available on the premises for use by the Authority Having Jurisdiction. [NFPA 96: ] COMMITTEE STATEMENT: To make corrections to the proposed text in accordance with NFPA 96 and the 2006 UMC text. 56

57 A PUBLIC COMMENT(S) WAS SUBMITTED FOR REVIEW AND CONSIDERATION. PUBLIC COMMENT: Submitter: Ted Lemoff, NFPA Request accept the code change proposal as modified by this public comment Recirculating systems shall be listed with a testing laboratory. There shall be no substitution or exchange of cooking appliances, filter components, blower components, or fire extinguishing system components that would violate the listing of the appliance. [NFPA 96: ] The recirculating system listing shall include integral fire protection for recirculating hoods, including canopy type [NFPA 96: ] Cooking appliances that require protection and that are under a arecirculating hood shall be protected by either the integral fire protection system for the hood or a system in accordance with Section A recirculating system shall not use cooking equipment that exceeds that recirculating system s labeled maximum limits for that type of equipment, stated in maximum energy input, maximum cooking temperature, and maximum square area of cooking surface or cubic volume of cooking cavity. [NFPA 96:13.2.6] A fire-actuated damper shall be installed at the exhaust outlet of the system. The damper shall be constructed of at least the same gauge as the shell. The fire damper shall be constructed of at least the same gauge as the shell. The actuation device shall have a maximum temperature rating of 375 F (190 C). [NFPA 96: & ] (Renumber remaining sections) ( ) Although recirculating single appliance/hood combinations incorporate integral fire protection that is part of the overall listing, many recirculating canopy type hoods do not have listed fire protection. Manufacturers of these types of hoods have been recommending using UL 300 protection. However, UL 300 does not have provision for testing or listing fire protection for this type of hood. ( ) This comment recommends new text which was added to the 2008 edition of NFPA 96.: A single appliance/recirculating hood combination will likely not utilize UL 300 protection on the appliance. In this case, the appliance protection will require evaluation and listing as part of the overall listing. ( ) This comment recommends a change that was made in the 2008 edition of NFPA 96. A redundant sentence is deleted. Item # 65 Comment Seq # 17 UMC 2009 Chapter 7 SUBMITTER: Theodore C. Lemoff NFPA Revise text as follows: 57

58 Revise all extracts from NFPA 54 in Chapter 7 to the 2009 edition of NFPA 54. To update the extracted sections of the UPC to the latest edition of the NFPA 54 COMMITTEE ACTION: Reject COMMITTEE STATEMENT: There are no proposals to NFPA 54 for Chapter 7. A PUBLIC COMMENT(S) WAS SUBMITTED FOR REVIEW AND CONSIDERATION. PUBLIC COMMENT: Submitter: Ted Lemoff, NFPA Request to accept the code change proposal as modified by this public comment Makeup air requirements for the operation of Where exhaust fans, kitchen ventilation systems, clothes dryers, and kitchen ventilation systems, fireplaces shall be considered in determining the adequacy of a space to provide combustion-air requirements interfere with the operation of appliances, makeup air shall be provided. [NFPA 54: ] This comment recommends revisions that were made to text extracted from NFPA 54 that was revised in the 2008 edition. The requirement is revised to make it enforceable. Consideration is vague and not enforceable. Item # Comment Seq # 18 UMC SUBMITTER: UMC Technical Committee Proposal Add new text as follows: Screws, rivets and other fasteners shall not penetrate the inner wall of Type B, BW and L vents. Fastener penetrations of single wall special vents shall be as allowed by the vent manufacturer. [NFPA 54: ] Current code is silent on this issue although it is a very common violation of the vent manufacturers installation instructions. Such instructions are almost never on the jobsite, therefore the code needs to address this. Fastener penetrations can cause damage to the vent and when the fasteners corrode, gases and condensate can leak from the vent. 58

59 COMMITTEE ACTION: Accept as Submitted A PUBLIC COMMENT(S) WAS SUBMITTED FOR REVIEW AND CONSIDERATION. PUBLIC COMMENT: Submitter: Ted Lemoff, NFPA Request to accept the code change proposal as modified by this public comment Screws, rivets, and other fasteners shall not penetrate the inner wall of Type B, BW, and L double wall gas vents, except at the transition from the appliance draft hood outlet, flue collar or single wall metal connector to a double wall vent. Fastener penetrations of single wall special vents shall be as allowed by the vent manufacturer. [NFPA 54: ] This comment recommends a revision that was made in the 2008 edition of NFPA 54. It provides specific information on where fasteners can be used instead of referring to the manufacturers installation instructions. Item # Comment Seq # 19 UMC SUBMITTER: UMC Technical Committee Proposal Revise text as follows: Location. Central heating furnace and low-pressure boiler installations in bedrooms or bathrooms shall comply with one of the following: (1) Central heating furnaces and low-pressure boilers may be installed in a closet located in the bedroom or bathroom, provided the closet is equipped with a listed, gasketed door assembly and a listed, self-closing device. The self-closing door assembly shall meet the requirements of section The door assembly shall be installed with a threshold and bottom door seal and shall meet the requirements of section All combustion air for such installations shall be obtained from the outdoors. The closet shall be for the exclusive use of the central heating furnace or lowpressure boiler. (1) Central heating furnaces and low-pressure boilers shall be permitted to be installed in a closet located in the bedroom or bathroom, the closet shall be equipped with a weather-stripped solid door with no openings, and with a self-closing device. All combustion air shall be obtained from the outdoors in accordance with [ NFPA 54:10.3.1] (2) Unchanged The National Fuel Gas Code committee is proposing to revise this section in the 2009 edition of the National Fuel Gas Code, and the revised text is recommended for the UMC. COMMITTEE ACTION: Accept as Submitted 59

60 A PUBLIC COMMENT(S) WAS SUBMITTED FOR REVIEW AND CONSIDERATION. PUBLIC COMMENT (ASSEMBLY ACTION): Submitter: Martin Cooper, IAPMO Central CA Ct. Request to reject the code change proposal by this public comment. Current code language is preferred. The current language protects the public if mechanical equipment is installed in closet located in a bedroom or bathroom. If the proposed code change is in effect the health and safety of the public is compromised. Item # Comment Seq # 20 UMC SUBMITTER: UMC Technical Committee Proposal Add new text as follows: Suspended Low-Intensity Infrared Tube Heaters. Suspended low-intensity infrared tube heaters shall not be connected to the building piping system with rigid pipe or semi-rigid metallic tubing. (Renumber remaining sections) In the past several years, gas leakage from fractured copper tubing has caused multiple major incidents. The cause was traced to the use of copper tubing as a gas connector on tube heaters which are not secure to the structure. The proposal seeks to exclude the use of copper tubing on such heaters by requiring only listed connectors in compliance with ANSI Z21.24 or UL 569. The proposed addition of UL 569 flexible hose connectors mirrors the use of the Canadian equivalent Type I hose connectors listed to CGA/CAN 8.1 in CAN/CSA B149.1, Natural Gas and Propane Installation Code. In 2003, the CAN/CSA B149.1 committee reviewed information on the failure of metal connectors on radiant tube heaters and determined that the desirability of a flexible connector capable of adjusting to the constant vibration and expansion/contraction characteristics of the radiant tube heater thereby preventing crack, leaks, or fractures due to work hardening outweighed concerns that the hose material may soften or burn in the event of a fire. COMMITTEE ACTION: Accept as Submitted A PUBLIC COMMENT(S) WAS SUBMITTED FOR REVIEW AND CONSIDERATION. PUBLIC COMMENTS: Submitter: Denise Beach, NPGA Ted Lemoff, NFPA David Delaquila, AHRI 60

61 Request to accept the code change proposal as modified by this public comment Suspended Low-Intensity Infrared Tube Heaters. Suspended low-intensity infrared tube heaters shall not be connected to the building piping system with rigid pipe or semi-rigid metallic tubing. Suspended low-intensity infrared tube heaters shall be connected to the building piping system with a connector listed for the application in accordance with ANSI Z21.24/CGA 6.10, Connectors for Gas Appliances. (A) The connector shall be installed in accordance with the tube heater installation instructions, and shall be in the same room as the appliance. (B) Only one connector shall be used per appliance. [NFPA 54: ] CHAPTER 17 STANDARDS TABLE 17-1 Standards for Equipment and Materials STANDARD NUMBER STANDARD TITLE APPLICATION REFERENCED SECTION ANSI Z21.24/CGA 6.10 Connectors for Gas Appliances Connectors for Gas SUBSTANTIATION (Denise Beach, NPGA): The text is updated to the current language in NFPA 54. SUBSTANTIATION (Ted Lemoff, NFPA): The new requirement for the installation of radiant tube heaters is revised to provide specific requirements for the connector to assist installers and code officials. SUBSTANTIATION (David Delaquila, AHRI): This is currently accepted proposed language to revise the National Fuel Gas Code, ANSI Z223/NFPA The Standard for Connectors for Gas Appliances, ANSI Z21.24/CGA 6.10, has been revised to add construction and performance requirements to address applications such as these. (Standard(s) was provided for review) Item # 86 Comment Seq # 21 UMC SUBMITTER: John Taecker IAPMO Correlation Task Group, Chairman The following was recommend by the Correlation Task Group. (See Correlation Task Group Report Item 8) Revise text as follows: Volume of Occupied Space. With respect to this Section, occupied space shall include those rooms that are occupied occasionally for short periods of time such as storage rooms, equipment rooms or any room which can be entered with a door that can be closed after entry. The quantity of refrigerant in a single, independent circuit of a high-probability system shall not exceed the amounts shown in Table 11 1 based 61

62 on the volume of the occupied space. The volume of the smallest, enclosed, occupied space shall be used to determine the permissible quantity of refrigerant in a system that is located in serves, or passes through such space. The definition of Occupied Space now applies to Section , which determines the permissible quantity of refrigerant in a system that is located in, serves, or passes through such space. A previous interpretation to normally occupied space provided by the International Conference of Building Officials (ICBO) back in 1999 did not include those rooms that are only occupied occasionally ; it included those areas that an individual could enter with a door that could close after entry. Under the conditions as defined in Section the person entering such a space could be overcome by refrigerant if a refrigerant leak occurred in that space. COMMITTEE ACTION: Accept as Amended by TC Amend proposal as follows: Volume of Occupied Space. With respect to this Section, occupied space shall include those rooms that are occupied occasionally for short periods of time such as storage rooms, equipment rooms or any room which can be entered with a door that can be closed after entry. The quantity of refrigerant in a single, independent circuit of a high-probability system shall not exceed the amounts shown in Table 11 1 based on the volume of the occupied space. The volume of the smallest, enclosed, occupied space shall be used to determine the permissible quantity of refrigerant in a system that is located in serves, or passes through such space. With respect to this Section, occupied space shall include those rooms that are occupied occasionally for short periods of time such as storage rooms, equipment rooms or any room which can be entered with a door that can be closed after entry. COMMITTEE STATEMENT: The modification places the proposed text at the end of the paragraph to clarify the intent of this section. A PUBLIC COMMENT(S) WAS SUBMITTED FOR REVIEW AND CONSIDERATION. PUBLIC COMMENT: Submitter: Pat McLaughlin, AHRI Request to accept the code change proposal as modified by this public comment Volume of Occupied Space. The quantity of refrigerant in a single, independent circuit of a highprobability system shall not exceed the amounts shown in Table 11 1 based on the volume of the occupied space. The volume of the smallest, enclosed, occupied space shall be used to determine the permissible quantity of refrigerant in a system that is located in serves, or passes through such space. In accordance With respect to this Section, occupied space shall include those rooms that are occupied occasionally for short periods of time such as storage rooms, equipment rooms other than refrigeration machinery rooms, or any room which can be entered with a door that can be closed after entry. 62

63 The proposal clarifies that refrigeration machinery rooms are not to be considered occupied space. Without this clarification, the proposal appears to eliminate locating chiller or compressor packages in reasonably sized machinery rooms. In fact it could be interpreted that the equipment must be located outside the building. Also, the change will bring the definition in line with ASHRAE 15 where the definition of occupied space specifically excludes machinery rooms. Item # 92 Comment Seq # 22 UMC SUBMITTER: Leon Alevantis California Department of Health Services Revise text as follows: Location. Cooling towers, evaporative condensers and fluid coolers shall be located such that their plumes cannot enter occupied spaces. Plume discharges shall be at least twenty five (25) feet above or and twenty five (250) feet horizontally away from any ventilation inlet to a building. Location on the property shall be as required for buildings by the Building Code. Buildings designed with 5 feet of vertical separation greatly increase the liability of the designer and place the building occupants in immediate danger of contracting Legionnaires Disease as well as various other health effects from inhaling pollutants emitted by the chemicals used to treat the cooling tower water. There is strong evidence both in the scientific literature as well as in the form of recommendations by expert organizations on separation distances between cooling towers and building air intakes. This evidence strongly contradicts the code minimum requirement of 5 feet vertical separation as being unsafe. More specifically, the American Society of Heating Refrigeration and Air-Conditioning Engineers (ASHRAE), the leading international association of professionals in the field, recommends in their Standard (entitled Ventilation for Acceptable Indoor Air Quality) a 25-ft minimum separation between cooling tower exhaust and building intake (Table 5-1). This distance refers to the shortest distance from the intake to any specific potential outdoor contaminant source. The California Department of Health Services (CDHS) in a publication entitled Minimizing the Risk of Legionnaires Disease in Public Buildings published in 1995 also recommends a 25 ft separation distance between cooling towers and building air intakes (this publication is available from the Division of Environmental and Occupational Disease Control, Environmental Health Laboratory Branch, California Department of Health Services, Richmond, CA). This recommendation is not limited to any specific building type. The above recommendations from ASHRAE and CDHS are in direct conflict with the code minimum requirements. In the 2001 California Mechanical Code, Section immediately after the code section I quoted above states for hospitals: [For OSHPD 1,2,3, &4] Plume discharge shall be at least twenty-five (25) feet from any ventilation inlet to a building. 63

64 Therefore, Section of the Uniform Mechanical Code should be consistent with Section of the California Mechanical Code (not just for hospitals) as well as the recommendations of Table 5-1 in ASHRAE and those of the California Department of Health Services. COMMITTEE ACTION: Reject COMMITTEE STATEMENT: The proposed text is overly restrictive and may conflict with ASHRAE 62. A PUBLIC COMMENT(S) WAS SUBMITTED FOR REVIEW AND CONSIDERATION. PUBLIC COMMENT: Submitter: Leon Alevantis, CA Dept of Pub Health Request to accept the code change proposal as modified by this public comment Location. Cooling towers, evaporative condensers, and fluid coolers shall be located such that their plumes cannot enter occupied spaces. Plume discharges shall be at least five (5) feet (1,524 mm) above or twenty (20) feet (6,096 mm) 25 feet (7,620 mm) away from any ventilation inlet to a building. Location on the property shall be as required for buildings by the Building Code. We disagree with the TC s action and statement. However, in an effort to address the TC s concerns and protect public health, we have presented compromise language under Item 3: Comment. Below we have addressed separately the two concerns that the TC raised. 1. The proposed text is not overly restrictive. Cooling towers are installed in buildings with large footprints where designers have the option of locating cooling towers away from building intakes. Buildings with small footprints are usually cooled with packaged HVAC systems which do not require cooling towers. We would like to point out that in the few cases where the proposed requirement may appear overly restrictive the designer has the option of requesting an exemption from the local Administrative Authority. In such cases, the designer may provide calculations, wind tunnel modeling, computer simulations, or Computational Fluid Dynamics (CFD) proving to the local Administrative Authority that reentrainment of cooling tower exhaust in to a building s intake(s) is not a concern when shorter separation distances are used in a specific project. In fact the California Mechanical Code (CMC) has a very good demonstration of such exemption. The CMC for hospitals (i.e., OSHPD) requires that outdoor air intakes be located at least 25 feet away from exhaust outlets, including cooling towers. However, Exception 1 of Section Outdoor Air Intakes states that: These dimensions may be reduced if it is demonstrated by the submission of details and calculations that location of intakes with respect to exhausts and their orientation, or the use of special filters, provides equal performance. 2. The proposed modified text does not conflict with ASHRAE 62: The ASHRAE 62.1 Standard is a consensus standard. To our knowledge, the 25 foot separation distance between cooling tower exhaust and building intakes recommended by ASHRAE Standard 62.1 since 2004 (Addendum aa to ASHRAE Standard available at has not been considered overly restrictive by building professionals and other interested parties because no one: (a) commented negatively during the 64

65 public review process in ; or (b) has requested that this distance be reduced since the publication of Table 5-1 in The Foreword to Addendum aa (not part of the addendum but the chairman s summary of the addendum language) when it was published in 2004 stated the following: This addendum converts requirements related to outdoor air intake location and intake protection into mandatory and enforceable language. Because outdoor contaminant sources can lead to unacceptable indoor air quality, this addendum adds requirements for minimum separation distances between common outdoor sources and outdoor air intakes. Also, because liquid water in the air distribution system can lead to microbial growth, this addendum includes requirements intended to limit the intrusion and entrainment of precipitation. The above information is based on the fact that: (a) the author of this comment has been an active member of ASHRAE s 62.1 committee since the public review and publication of Addendum aa ; and (b) communications on this matter with the present and past chairmen of the 62.1 committee. Table 5-1 of ASHRAE Standard clearly requires designers to place: (a) cooling tower exhausts at least 25 feet away from any building intakes; and (b) cooling tower intakes or basins at least 15 feet away from building intakes. Furthermore, Section of ASHRAE Standard states the following: Location. Outdoor air intakes, including doors and windows that are required as part of a natural ventilation system, shall be located such that the shortest distance from the intake to any specific potential outdoor contaminant source shall be equal to or greater than the separation distance listed in Table 5-1. Based on: (a) ASHRAE s language on separation distances between cooling towers and building intakes; and (b) the UMC TC s comments, we have modified our proposal to be consistent with ASHRAE Standard 62.1 while addressing the TC s concerns and protecting public health. As such, we are proposing that cooling tower exhausts be located at least 25 feet away from any building intakes and that cooling tower intakes or basins be at least 15 feet away from building intakes. Evaporative condensers and fluid coolers are also included in this requirement since they are designed similar to cooling towers. Therefore, it is clear that the proposed modified changes are consistent with Standard and if adopted would make the UMC consistent with ASHRAE on the issue of separation distances between cooling towers and building intakes. In our opinion to the extent possible and practical, there should be consistency between the UMC and other consensus standards. Item # 94 Comment Seq # 23 UMC SUBMITTER: James Paschal Bodycote Add new text as follows: Those portions of the hot water piping systems in which the continuous pressure/temperature relationship does not exceed the following may be constructed of polypropylene (PP) piping conforming to specification ASTM F2389 which is rated at or above these pressures and temperatures. Temperature Pressure º F ( º C) psi (kpa) 73 (23) 200 (1,380) 180 (82) 100 (690) 200 (93) 40 (345) 65

66 Materials and Construction Polypropylene Pipe. Pipe shall conform to ASTM F 2389 PP Pipe and fittings shall be installed in accordance with the manufacturers recommended installation instructions Fittings. Fittings shall be manufactured and tested in accordance with ASTM F Insulation. Coverings and insulation used for hot water pipes shall be of material suitable for the operating temperature of the system. The insulation, jackets and lap-seal adhesives, including pipe coverings and linings, shall have a flame spread index not greater than 25 and a smoke-developed index not greater than 50 when tested in accordance with NFPA 225, Method of test of Burning Characteristics of Building Materials; or in accordance with ASTM E 84, Surface Burning Characteristics of Building Materials; or in accordance with the provisions of UL 723, Test of Surface Burning Characteristics of Building Materials. The specimen preparation and mounting procedures of ASTM E Specimen Preparation and Mounting of Pipe and Duct Insulation Materials to Assess Surface Burning Characteristics, shall be used. Alternatively. materials used for pipe coverings and insulation (including the insulation, jacket and lap-seal adhesives) shall have a maximum peak heat release rate of 300 kw, a maximum total heat release of 50 MJ, a maximum total smoke release of 500 m 2 and shall not generate flames that extend one (1) foot (0.3m) or more above the top of the vertical portion of the apparatus at any time during the test when tested in accordance with NFPA 274, Standard Method to Evaluate Fire Performance Characteristics of Pipe Insulation. Insulation coverings and shall not flame, glow, smolder, or smoke when tested in accordance with ASTM C411, Hot-Surface Performance of High Temperature Thermal Insulation, at the temperature to which they are exposed in service. In no case shall the test temperature be below 250ºF (121ºC) Hangers, Sleeves and Anchors. Hangers, sleeves, and anchors shall be suitable for the use intended as recommended by the manufacturers installation instructions Standards. All Pipe and fittings materials shall be free of defects and comply with nationally recognized standards approved by the Authority Having Jurisdiction Marking. Materials and devices shall be suitably identified. PP pipe and fittings shall be marked in accordance with ASTM F Heat-fusion Joints. Heat-fusion for polypropylene (PP) pipe and fitting joints shall be installed with socket-type heat-fused polypropylene fittings, butt-fusion polypropylene fittings or pipe, or electrofusion polypropylene fittings. Joint surfaces shall be clean and free from moisture. The joint shall be undisturbed until cool Mechanical and Compression Sleeve Joints. Mechanical and compression sleeve joints shall be installed in accordance with the manufacturer s instructions Transition Fittings. Connections to other piping materials shall be made with approved types of transition fittings. This proposal provides for an alternate plumbing material. These Polypropylene (PP) piping systems are manufactured, tested and listed in accordance with ASTM F 2389, and have been accepted in other model codes in the U.S. and Canada. COMMITTEE ACTION: Accept as Submitted 66

67 A PUBLIC COMMENT(S) WAS SUBMITTED FOR REVIEW AND CONSIDERATION. PUBLIC COMMENT: Submitter: April Trafton, UMC Access Task Group The following is recommended by the Access Task Group (see Access Task Group Report for Item #3). Request to accept the code change proposal as modified by this public comment Insulation. Coverings or insulation used on hot water or steam pipes shall be of materials suitable for the operating temperature of the system. The insulation, jackets, and lap-seal adhesives shall be tested as a composite product and shall have a flame-spread index of not more than twenty five (25) and a smoke-developed index of not more than fifty (50) when tested in accordance with Building Code standards. Coverings and insulation used for hot water pipes shall be of material suitable for the operating temperature of the system. The insulation, jackets, and lap-seal adhesives, including pipe coverings and linings, shall have a flame spread index not greater than twenty-five (25) and a smoke-developed index not greater than fifty (50) when tested in accordance with NFPA 255, Method of Test of Burning Characteristics of Building Materials; or in accordance with ASTM E 84, Surface Burning Characteristics of Building Materials; or in accordance with the provisions of UL 723, Test for Surface Burning Characteristics of Building Materials. The specimen preparation and mounting procedures of ASTM E 2231, Specimen Preparation and Mounting of Pipe and Duct Insulation Materials to Assess Surface Burning Characteristics shall be used. Alternately, materials used for pipe coverings and insulation (including the insulation, jacket, and lap-seal adhesives) shall have a maximum peak heat release rate of 300 kw, a maximum total heat release of 50MJ, a maximum total smoke release of 500 m 2 and shall not generate flames that extend one (1) foot (305 mm) or more above the top of the vertical portion of the apparatus at any time during the test when tested in accordance with NFPA 274, Standard Test Method to Evaluate Fire Performance Characteristics of Pipe Insulation. Insulation coverings and linings shall not flame, glow, smolder, or smoke when tested in accordance with ASTM C 411, Hot-Surface Performance of High Temperature Thermal Insulation, at the temperature to which they are exposed in service. In no case shall the test temperature be below 250ºF (121ºC) Insulation. Coverings and insulation used for hot water pipes shall be of material suitable for the operating temperature of the system. The insulation, jackets and lap-seal adhesives, including pipe coverings and linings, shall have a flamespread index not greater than twentyfive (25) and a smoke-developed index not greater than fifty (50) when tested in accordance with NFPA 255, Method of Test of Burning Characteristics of Building Materials; or in accordance with ASTM E84, Surface Buring Characteristics of Building Materials; or in accordance with the provisions of UL 723, Test of Surface Burning Characteristics of Building Materials. The specimen preparation and mounting procedures of ASTM E2231, Specimen Preparation and Mounting of Pipe and Duct Insulation Materials to Assess Surface Burning Characteristics, shall be used. Alternatively, materials used for pipe coverings and insulation (including the insulation, jacket and lap-seal adhesives) shall have a maximum peak heat release rate of 300kW, a maximum total heat release of 50 MJ, a maximum total smoke release of 500 m2 and shall not generate flames that extend one (1) foot (305 mm) or more above the top of the vertical portion of the apparatus at any time during the test when tested in accordance with NFPA 274, Standard Method to Evaluate Fire Performance Characteristics of Pipe Insulation. Insulation coverings shall not flame, glow, smolder, or smoke when tested in accordance with ASTMC411, Hot-Surface Performance of High Temperature Thermal Insulation, at the temperature to which they are exposed in service. In no case shall the test temperature be below 250 F (121 C). SUBTANTIATION: Sections , , and containing duplicative insulation requirements and should be deleted and relocated in the general section of the chapter. 67

68 Item # 96 Comment Seq # 24 UMC and Table 17-1 SUBMITTER: Larry Gill IPEX Inc Add new text as follows: Those portions of the hot water piping systems in which the continuous pressure temperature relationship does not exceed the following may be constructed of Raised Temperature Polyethylene (PE-RT) tubing conforming to specification ASTM F Materials and Construction Temperature Pressure F ( C) psi (kpa) 73 (23) 160 (1103) 140 (60) 100 (690) 180 (82) 80 (552) PE-RT Tubing. Tubing shall be copper tube size, SDR 9 Raised Temperature Polyethylene conforming to ASTM F2623. PE-RT tubing and fittings shall be installed in accordance with the manufacturers recommended installation instructions Fittings. Fittings shall be manufactured and tested in accordance with the section Insulation. Coverings and insulation used for hot water pipes shall be of material suitable for the operating temperature of the system. The insulation, jackets, and lap-seal adhesives, including pipe coverings and linings, shall have a flame-spread index not greater than 25 and a smoke-developed index not greater than 50 when tested in accordance with NFPA 255, Method of Test Burning Characteristics of Building Materials; or in accordance with ASTM E 84, Surface Burning Characteristics of Building Materials; or in accordance with the provisions of UL 723, Test for Surface Burning Characteristics of Building Materials. The specimen preparation and mounting procedures of ASTM E 2231, Specimen Preparation and Mounting of Pipe and Duct Insulation Materials to Assess Surface Burning Characteristics shall be used. Alternately, materials used for pipe coverings and insulation (including the insulation, jacket, and lap-seal adhesives) shall have a maximum peak heat release rate of 300 kw, a maximum total heat release of 50 mj, a maximum total smoke release of 500 m 2 and shall not generate flames that extend one (1) foot (0.3 m) or more above the top of the vertical portion of the apparatus at any time during the test when tested in accordance with NFPA 274, Standard Test Method to Evaluate Fire Performance Characteristics of Pipe Insulation. Insulation coverings and linings shall not flame, glow, smolder, or smoke when tested in accordance with ASTM C 411, Hot-Surface Performance of High Temperature Thermal Insulation, at the temperature to which they are exposed in service. In no case shall the test temperature be below 250 F (121 C) Hangars, Sleeves, and Anchors. Hangars, sleeves, and anchors shall be suitable for the use intended as recommended by the manufacturers instructions Standards. All piping, tubing and fitting materials shall be free of defects and comply with recognized standards approved by the Authority Having Jurisdiction Marking. Materials and devices shall be suitably identified Fabrication of Joints. Fittings shall be manufactured and tested in accordance with the application for which they are intended. Joints shall be made by one or more of the following methods: 68

69 Crimp/Insert Fittings. Insert fittings of metal or plastic with crimp rings of copper may be used Compression Fittings. Metallic fittings utilizing compression seals are acceptable Transition Fittings. Connections to other piping materials shall be made of approved types of special transition fittings Changes in Direction. Changes in direction shall be made by the appropriate use of fittings or with pipe bends having a radius of not less than six times the outside diameter of the tubing. No forming equipment or heating is required. Add new standards to Chapter 17, Table 17-1 as follows: Standard Number ASTM F Standard Title Standard Specification for Polyethylene of Raised Temperature (PE-RT) SDR9 Tubing (Copy of Standard included) Key Word Standard Number Standard Title PE-RT ASTM F Standard Specification for Polyethylene of Raised Temperature (PE-RT) Tubing (Portions of table not shown do not change) The proposal adds reference to a nationally recognized ASTM F , Standard Specification for Polyethylene of Raised Temperature (PE-RT) Tubing. COMMITTEE ACTION: Accept as Submitted A PUBLIC COMMENT(S) WAS SUBMITTED FOR REVIEW AND CONSIDERATION. PUBLIC COMMENT: Submitter: April Trafton, UMC Access Task Group The following is recommended by the Access Task Group (See Access Task Group Report Item #4). Request to accept the code change proposal as modified by this public comment Insulation. Coverings or insulation used on hot water or steam pipes shall be of materials suitable for the operating temperature of the system. The insulation, jackets, and lap-seal adhesives shall be tested as a composite product and shall have a flame-spread index of not more than twenty five (25) and a smoke-developed index of not more than fifty (50) when tested in accordance with Building Code standards. Coverings and insulation used for hot water pipes shall be of material suitable for the operating temperature of the system. The insulation, jackets, and lap-seal adhesives, including pipe coverings and linings, shall have a flame spread index not greater than twenty-five (25) and a smoke-developed index not greater than 69

70 fifty (50) when tested in accordance with NFPA 255, Method of Test of Burning Characteristics of Building Materials; or in accordance with ASTM E 84, Surface Burning Characteristics of Building Materials; or in accordance with the provisions of UL 723, Test for Surface Burning Characteristics of Building Materials. The specimen preparation and mounting procedures of ASTM E 2231, Specimen Preparation and Mounting of Pipe and Duct Insulation Materials to Assess Surface Burning Characteristics shall be used. Alternately, materials used for pipe coverings and insulation (including the insulation, jacket, and lap-seal adhesives) shall have a maximum peak heat release rate of 300 kw, a maximum total heat release of 50MJ, a maximum total smoke release of 500 m 2 and shall not generate flames that extend one (1) foot (305 mm) or more above the top of the vertical portion of the apparatus at any time during the test when tested in accordance with NFPA 274, Standard Test Method to Evaluate Fire Performance Characteristics of Pipe Insulation. Insulation coverings and linings shall not flame, glow, smolder, or smoke when tested in accordance with ASTM C 411, Hot-Surface Performance of High Temperature Thermal Insulation, at the temperature to which they are exposed in service. In no case shall the test temperature be below 250ºF (121ºC) Insulation. Coverings and insulation used for hot water pipes shall be of material suitable for the operating temperature of the system. The insulation, jackets and lap-seal adhesives, including pipe coverings and linings, shall have a flame spread index not greater than twenty-five (25) and a smoke-developed index not greater than fifty (50) when tested in accordance with NFPA 255, Method of test Burning Characteristics of Building Materials; or in accordance with ASTM E 84, Surface Burning Characteristics of Building Materials; or in accordance with the provisions of UL 723, Test of Surface Burning Characteristics of Building Materials. The specimen preparation and mounting procedures of ASTM E 2231, Specimen Preparation and Mounting of Pipe and Duct Insulation Materials to Assess Surface Burning Characteristics, shall be used. Alternatively, materials used for pipe coverings and insulation (including the insulation, jacket and lapseal adhesives) shall have a maximum peak heat release rate of 300 kw, a maximum total heat release of 50 MJ, a maximum total smoke release of 500 m2 and shall not generate flames that extend one (1) foot (304 mm) or more above the top of the vertical portion of the apparatus at any time during the test when tested in accordance with NFPA 274, Standard Test Method to Evaluate Fire Performance Characteristics of Pipe Insulation. Insulation coverings and linings shall not flame, glow, smolder, or smoke when tested in accordance with ASTM C 411, Hot-Surface Performance of High Temperature Thermal Insulation, at the temperature to which they are exposed in service. In no case shall the test temperature be below 250ºF (121ºC). Sections , , and containing duplicative insulation requirements and should be deleted and relocated in the general section of the chapter. Item # 97 Comment Seq # 25 UMC and Table 17-1 SUBMITTER: Larry Gill IPEX Inc Add new text as follows: Those portions of the hot water piping systems in which the continuous pressure temperature relationship does not exceed the following may be constructed of Polyethylene/Aluminum/ Polyethylene (PE- AL-PE) piping conforming to specification ASTM F

71 Materials and Construction Temperature Pressure F ( C) psi (kpa) 73 (23) 200 (1,380) 140 (60) 150 (1,035) 180 (82) 100 (690) PE-AL-PE. Piping shall PE-AL-PE conforming to conforming to ASTM F1282. PE-AL-PE piping and fittings shall be installed in accordance with the manufacturers recommended installation instructions Fittings. Fittings shall be manufactured and tested in accordance with the nationally recognized standards Insulation. Coverings and insulation used for hot water pipes shall be of materials suitable for the operating temperature of the system. The insulation, jackets, and lap-seal adhesives shall be tested as a composite developed rating of not more than 50 when tested in accordance with the Building code standards Hangars, Sleeves, and Anchors. Hangars, sleeves, and anchors shall be suitable for the use intended as recommended by the manufacturers instructions Standards. All piping and fitting materials shall be free of defects and comply with nationally recognized standards in Chapter Marking. Materials and devices shall be suitably identified Fabrication of Joints. All joining methods shall meet the performance requirements set forth in ASTM F1281 or ASTM F1974. Joints shall be made by one or more of the following methods: Crimp/Insert Fittings. Insert fittings of metal or plastic with crimp rings may be used Mechanical Compression Fittings. Metallic fittings utilizing compression seals are acceptable Transition Fittings. Connections to other piping materials shall be made of approved types of special transition fittings Changes in Direction. Changes in direction shall be made by the appropriate use of fittings or with pipe bends having a radius of not less than six times the outside diameter of the piping. No forming equipment or heating is required. Add new standards to Chapter 17, Table 17-1 as follows: Standard Number ASTM F ASTM F Standard Title Standard Specification for Polyethylene/Aluminum/Polyethylene (PEAL-PE) Composite Pressure Pipe Standard Specification for Metal Insert Fittings for Polyethylene/Aluminum/Poly ethylene and Crosslinked Polyethylene/Aluminum/Crosslinked Polyethylene Composite Pressure Pipe (Portions of table not shown do not change) 71

72 Key Word Standard Number Standard Title Composite ASTM F Standard Specification for Polyethylene/Aluminum/Polyethylene (PE-AL-PE) Composite Pressure Pipe Composite ASTM F Standard Specification for Metal Insert Fittings for Polyethyl ene/aluminum/polyethylene and Crosslinked Polyethylene/Alu minum/crosslinked Polyethylene Composite Pressure Pipe (Portions of table not shown do not change) (Note: To date, no standards have been received from proponent.) The proposal adds a reference to a nationally recognized ASTM standard. COMMITTEE ACTION: Accept as Submitted A PUBLIC COMMENT(S) WAS SUBMITTED FOR REVIEW AND CONSIDERATION. PUBLIC COMMENT: Submitter: April Trafton, UMC Access Task Group The following is recommended by the Access Task Group (see Access Task Group Report for Item #5). Request to accept the code change proposal as modified by this public comment Insulation. Coverings or insulation used on hot water or steam pipes shall be of materials suitable for the operating temperature of the system. The insulation, jackets, and lap-seal adhesives shall be tested as a composite product and shall have a flame-spread index of not more than twenty five (25) and a smoke-developed index of not more than fifty (50) when tested in accordance with Building Code standards. Coverings and insulation used for hot water pipes shall be of material suitable for the operating temperature of the system. The insulation, jackets, and lap-seal adhesives, including pipe coverings and linings, shall have a flame spread index not greater than twenty-five (25) and a smoke-developed index not greater than fifty (50) when tested in accordance with NFPA 255, Method of Test of Burning Characteristics of Building Materials; or in accordance with ASTM E 84, Surface Burning Characteristics of Building Materials; or in accordance with the provisions of UL 723, Test for Surface Burning Characteristics of Building Materials. The specimen preparation and mounting procedures of ASTM E 2231, Specimen Preparation and Mounting of Pipe and Duct Insulation Materials to Assess Surface Burning Characteristics shall be used. Alternately, materials used for pipe coverings and insulation (including the insulation, jacket, and lap-seal adhesives) shall have a maximum peak heat release rate of 300 kw, a maximum total heat release of 50MJ, a maximum total smoke release of 500 m 2 and shall not generate flames that extend one (1) foot (305 mm) or more above the top of the vertical portion of the apparatus at any time during the test when tested in accordance with NFPA 274, Standard Test Method to Evaluate Fire Performance Characteristics of Pipe Insulation. Insulation coverings and linings shall not flame, glow, smolder, or smoke when tested in accordance with ASTM C 411, Hot-Surface Performance of High Temperature Thermal Insulation, at the temperature to which they are exposed in service. In no case shall the test temperature be below 250ºF (121ºC) Insulation. Coverings and insulation used for hot water pipes shall be of materials suitable for the operating temperature of the system. The insulation, jackets, and lap-seal adhesives, shall be tested as a composite developed rating of not more than fifty (50) when tested in accordance with the Building code standards. 72

73 Sections , , and containing duplicative insulation requirements and should be deleted and relocated in the general section of the chapter. Item # 100 Comment Seq # 26 UMC SUBMITTER: Sidney Cavanaugh Cavanaugh Consulting Add new text as follows: Excess Flow Valve. When automatic excess flow gas shutoff devices (valves) are used, they shall be listed and shall be sized according to the manufacturers installation instructions for the maximum flow anticipated for the main or branch of the fuel gas system in which the excess flow valve is installed. (Renumber remaining sections.) A code change duplication wording in the UMC for devices used in fuel gas systems and applications covered by both the plumbing and mechanical codes. COMMITTEE ACTION: Accept as Submitted A PUBLIC COMMENT(S) WAS SUBMITTED FOR REVIEW AND CONSIDERATION. PUBLIC COMMENT: Submitter: Ted Lemoff, NFPA Request to accept the code change proposal as modified by this public comment Excess Flow Valve. When Where automatic excess flow gas shutoff devices (valves) are used installed, they shall be listed for the application and shall be sized according to the manufacturers installation instructions. for the maximum flow anticipated for the main or branch of the fuel gas system in which the excess flow valve is installed. (renumber remaining sections). This comment proposed new text that was added to the 2008 edition of NFPA 54, and is similar to text accepted for the UMC. The revisions recognize that there are many excess flow valves that are listed but intended for different applications that would not provide safety in fuel gas piping systems; and redundant text is deleted. 73

74 Item # Comment Seq # 27 UMC SUBMITTER: UMC Technical Committee Proposal Revise text as follows: Tubing in Partitions. This provision shall not apply to tubing that pierces walls, floors, or partitions. Tubing installed vertically and horizontally inside hollow walls or partitions without protection along its entire concealed length shall meet the following requirements be installed in accordance with through Tubing shall only be installed horizontally or vertically A steel striker barrier not less than in. (1.3 mm) thick, or equivalent, is shall be installed between the tubing and the finished wall and shall extend extends at least four (4) inches (100 mm) beyond concealed penetrations of plates, fire stops, wall studs, and so on similar construction features The tubing is shall be installed in single runs and shall is not be rigidly secured Where the wall or partition contains batt-type insulation the insulation shall not restrict the movement of the tubing. [NFPA 54:7.3.4] Section prohibits the installation of tubing in partitions that contain insulation (must be hollow). Soft type of insulation would not necessary restrict the movement of tubing (in the event of a nail penetration). COMMITTEE ACTION: Accept as Submitted A PUBLIC COMMENT(S) WAS SUBMITTED FOR REVIEW AND CONSIDERATION. PUBLIC COMMENT: Submitter: Ted Lemoff, NFPA Request to accept the code change proposal as modified by this public comment Tubing in Partitions. This provision shall not apply to tubing that pierces walls, floors, or partitions. Tubing installed vertically and horizontally inside hollow walls or partitions without protection along its entire concealed length shall meet the following requirements: be installed in accordance with through Tubing shall only be installed horizontally or vertically A steel striker barrier not less than in. (1.3 mm) thick, or equivalent, is shall be installed between the tubing and the finished wall and shall extend at least four (4) inches (100 mm) beyond concealed penetrations of plates, fire stops, wall studs, and similar construction features. 74

75 The tubing shall be installed in single runs and shall not be rigidly secured Where the wall or partition contains batt-type insulation the insulation shall not restrict the movement of the tubing. [NFPA 54:7.3.4] Piping in Vertical Chases. (See Section ) Where gas piping exceeding five (5) psi (34 kpa) is located within vertical chases in accordance with NFPA 54, Section 5.5.1(2), the requirements of Section through shall apply. [NFPA 54:7.4] The following references were extracted from NFPA 54: Maximum Design Operating Pressure. The maximum design operating pressure for piping systems located inside buildings shall not exceed 5 psi (34 kpa) unless one or more of the following conditions are met: (1) The piping system is welded. (2) The piping is located in a ventilated chase or otherwise enclosed for protection against accidental gas accumulation. (3) The piping is located inside buildings or separate areas of buildings used exclusively for one of the following: (a) Industrial processing or heating (b) Research (c) Warehousing (d) Boiler or mechanical equipment rooms (4) The piping is a temporary installation for building under construction. (5) The piping serves appliances or equipment used for agricultural purposes. (6) The piping system is an LP-Gas piping system with a design operating pressure greater than 20 psi and complies with NFPA 58: Liquefied Petroleum Gas Systems. LP-Gas systems designed to operate below -5ºF (-21ºC) or with butane or a propane-butane mix shall be designed to either accommodate liquid LP-Gas or to prevent LP-Gas vapor from condensing back into liquid Liquefied Petroleum Gas Systems. LP-Gas systems designed to operate below -5 F (-21C) or with butane or a propane-butane mix shall be designed to either accommodate liquid LP-Gas or to prevent LP-Gas vapor from condensing back into a liquid. This comment proposes rejection of proposal , which was rejected and will not appear in the 2008 edition of NFPA 54, and will retain the requirement that tubing will be installed only in hollow walls and partitions. This comment proposes an addition made in the 2008 edition of NFPA 54. The addition of agricultural purposes to the UMC recognizes that higher pressures are typically used on farms for livestock facilities and other purposes. The addition of the reference to the scope of NFPA 58 is necessary in order to exempt those systems that are covered in specific detail in NFPA 58. Frequently users of the code are unaware that the point of delivery (1301.0) is precisely defined and that it represents the line of demarcation for the application of the UMC and NFPA 58. Item # 101 Comment Seq # 28 UMC (6) SUBMITTER: Bryan Popp Dormont Manufacturing Company Revise text as follows: (6) Gas-fired food service (commercial cooking) equipment listed for use with casters or otherwise subject 75

76 to movement for cleaning, and other large and heavy gas utilization equipment that can be moved, shall be connected in accordance with the connector manufacturer s installation instructions using a listed appliance connector complying with ANSI Z21.69, Standard for Connectors for Movable Gas Appliances. Appliances with casters shall have a restraining device that limits the movement. [NFPA 54: ] The additional sentence clarifies that a restraining device is required for caster mounted movable appliances. This proposed language increases safety by reducing the risk of fugitive fuel gas from improperly used connectors, potential fires and subsequent losses in commercial kitchens. Specific improvements include: 1. Reducing dangerous strain on improperly applied connectors in the commercial kitchen. 2. Increases the likelihood that manufacturer s instructions will be safely followed. 3. Increases awareness among designers, installers, users and code officials that restraining devices are required for the safe use of caster mounted movable appliances. This proposal closely matches a current proposal to NFPA 54. COMMITTEE ACTION: Reject COMMITTEE STATEMENT: Based on action taken on various committee proposals. A PUBLIC COMMENT(S) WAS SUBMITTED FOR REVIEW AND CONSIDERATION. PUBLIC COMMENT 1: Submitter: Ted Lemoff, NFPA Request to accept the code change proposal as modified by this public comment. (6) Gas-fired food service (commercial cooking) equipment listed for use with casters or otherwise subject to movement for cleaning, and other large and heavy gas utilization equipment that can be moved, shall be connected in accordance with the connector manufacturer s installation instructions using a listed appliance connector complying with ANSI Z21.69, Standard for Connectors for Movable Gas Appliances. The commercial cooking appliance connector installation shall be configured in accordance with the manufacturer s installation instructions. [NFPA 54: ] This comment recommends revisions that were made to text extracted from NFPA 54 that was revised in the 2008 edition. Reference to manufacturer s installation instruction is substituted for a specific requirement, which may not consistent with some connector manufacturer s recommendations. PUBLIC COMMENT 2: Submitter: Bryan Popp, Dormant Manufacturing Co Request to accept the code change proposal as modified by this public comment. 76

77 (7) In (2), (3), and (5), the connector or tubing shall be installed so as to be protected against physical and thermal damage. Aluminum alloy tubing and connectors shall be coated to protect against external corrosion where they are in contact with masonry, plaster, or insulation, or are subject to repeated wettings by such liquids as water (except rainwater), detergents, or sewage. Movement of appliances with casters shall be limited by a restraining device installed in accordance with the connector and appliance manufacturer s installation instructions. (8) In (2), (3), and (5), the connector or tubing shall be installed so as to be protected against physical and thermal damage. Aluminum alloy tubing and connectors shall be coated to protect against external corrosion where they are in contact with masonry, plaster, or insulation, or are subject to repeated wettings by such liquids as water (except rainwater), detergents, or sewage. Item 101 was rejected by the committee in favor of language that was approved by a committee proposal. In my notes this was committee proposal 36. However, the record of the committee proposal does not seem to appear in the ROP. I trust that staff and committee members will recall the favorable committee proposal. Item # Comment Seq # 29 UMC (A) SUBMITTER: UMC Technical Committee Proposal Revise text as follows: (A) Each aboveground portion of a gas piping system that is likely to become energized shall be electrically continuous and bonded to an effective ground-fault current path. Gas piping shall be considered to be bonded when it is connected to gas utilization equipment appliances that is are connected to the equipment appliance grounding conductor of the circuit supplying that equipment appliance. CSST gas piping systems shall be bonded to the electrical service grounding electrode system at the point where the gas service enters the building. The bonding jumper shall not be smaller than 6 AWG copper wire. [NFPA 54:7.13.1] Informational Note: In order to correlate with references extracted from NFPA 54 in Chapter 13, gas utilization equipment and references made to equipment that utilizes or burns gas is replaced with appliances. Gas piping systems installed inside buildings have demonstrated a propensity to become energized from nearby lightning strikes. Conventional bonding of gas piping through the equipment grounding conductor has proven inadequate (in these circumstances) to prevent arcing between the gas piping and other nearby electrically conductive systems. The attached technical article describes (in detail) the arcing damage inflicted on gas piping caused by indirect lightning strikes. CSST manufacturers collectively report dozens of damaged systems caused by improper or inadequate bonding resulting in fire damage or loss of property. Therefore, modifications are proposed to allow alternative methods for direct bonding of gas piping to the grounding system to insure a minimum threshold of protection from all threats (including indirect lightning strikes) that are likely to energize the piping. Current bonding of gas piping to the equipment grounding conductor will continue to be permitted. Similar language has been submitted to the NEC (National Electrical Code) for the 2008 cycle. The proposed text is consistent with CSST systems manufacturers recommendation. 77

78 COMMITTEE ACTION: Accept as Submitted A PUBLIC COMMENT(S) WAS SUBMITTED FOR REVIEW AND CONSIDERATION. PUBLIC COMMENT: Submitter: Ted Lemoff, NFPA Request to accept the code change as modified by this public comment Electrical Bonding and Grounding. (A) Pipe and Tubing other than CSST. Each aboveground portion of a gas piping system other than CSST that is likely to become energized shall be electrically continuous and bonded to an effective groundfault current path. Gas piping, other than CSST shall be considered to be bonded when it is connected to appliances that are connected to the appliance grounding conductor of the circuit supplying that appliance. [NFPA 54: ] (B) CSST gas piping systems shall be bonded to the electrical service grounding electrode system at the point where the gas service enters the building. The bonding jumper shall not be smaller than 6 AWG copper wire. [NFPA 54:7.13.4] (BC) Gas piping shall not be used as a grounding conductor or electrode. This does not preclude the bonding of metallic piping to a grounding system. [NFPA 54: ] Lightning Protection System. Where a lighting system is installed, the bonding of the gas piping shall be in accordance with NFPA 780. (renumber remaining sections). This comment recommends revisions that were made to text extracted from NFPA 54, that was revised in CHAPTER 17 STANDARDS TABLE 17-1 Standards for Equipment and Materials REFERENCED STANDARD NUMBER STANDARD TITLE APPLICATION SECTION Standard for the Installation of NFPA 780 Lightning Protection System Lightning Protection Systems the 2008 edition. The bonding requirements for CSST and other gas piping materials are separated for clarity. The additional bonding requirement is limited to CSST, as the failures have been associated with CSST. This comment recommends revisions that were made to text extracted from NFPA 54 that was revised in the 2008 edition. The revision to (B) clarifies that the requirement is not intended to prohibit bonding of metallic piping systems. New paragraph clarifies that a lightning protection system, where installed, is coffered by a separate code, NFPA 780. Item # Comment Seq # 30 UMC SUBMITTER: UMC Technical Committee Proposal 78

79 Revise text as follows: Appliance Shutoff Valves and Connections. Each appliance connected to a piping system shall have an accessible, approved manual shutoff valve with a nondisplaceable valve member or a listed gas convenience outlet installed within six (6) feet (1.8m) of the equipment it serves. Where a connector is used, the valve shall be installed up-stream of the connector. A union or flanged connection shall be provided downstream from this valve to permit removal of controls. Shutoff valves serving decorative gas appliances shall be permitted to be installed in fireplaces if listed for such use. [NFPA 54:9.6.4] Exceptions: (1) Shutoff valves may be accessibly located inside or under an appliance when such appliance can be removed without removal of the shutoff valve. (2) Shutoff valves may be accessibly located inside wall heaters and wall furnaces listed for recessed installation where necessary maintenance can be performed without removal of the shutoff valve Where installed at a manifold, the appliance shutoff valve shall be located within 50 ft (15 m) of the appliance served, measured in a straight line and shall be readily accessible and permanently identified. The piping from the manifold to within 6 ft (1.8 m) of the appliance shall be designed, sized and installed in accordance with Chapter 13. [NFPA 54: ] This proposal intends to add editorially update to be consistent with changes made in NFPA 54, and to add a new concept, centrally located shutoff valves, which were incorporated into the 2006 edition of NFPA 54. Centrally located shutoff valves have been successfully used in Canada for many years. They have been in NPFA 54 since 2005 and no problem with the location have been reported. COMMITTEE ACTION: Reject COMMITTEE STATEMENT: A Technical justification was not provided for the increased length of the location of the shut off valve. Committee has safety concerns. A PUBLIC COMMENT(S) WAS SUBMITTED FOR REVIEW AND CONSIDERATION. PUBLIC COMMENT 1: Submitter: Denise Beach, NPGA Requests accept the code change proposal as submitted by this public comment: I concur with the negative ballots. The proposed coverage that would permit shutoff valves to be installed up to 50-ft from an appliance in manifold piping systems should be accepted. The 50-ft distance was taken from the Canadian fuel gas installation code. Shut off valves are service valves, used to isolate an appliance for repairs and replacement. As such, installing them up to 50 ft away does not present a safety issue. 79

80 PUBLIC COMMENT 2: Submitter: Ted Lemoff, NFPA Request to accept the code change proposal as modified by this public comment: Section (text remains unchanged) Where installed at a manifold, the appliance shutoff valve shall be located within 50 ft (15 m) of the appliance served, shall be readily accessible and permanently identified. The piping from the manifold to within 6 ft (1.8 m) of the appliance shall be designed, sized, and installed in accordance with Chapters 5, 6, and 7. The appliance shutoff valve is not an emergency valve. It is required so that the appliance can be maintained or replaced without shutting off the entire system. The existing 6 ft minimum distance has been in codes for many decades and is an arbitrary distance. The concept of a central appliance shutoff location is similar to the philosophy of electricity distribution in buildings, with all switches (shutoffs) located in one place. There is no technical reason to not allow this, and the experience in Canada where it has been allowed for many years, and in the areas where NFPA 54 is adopted demonstrates that it is safe. Item # Comment Seq # 31 UMC 2009 Table 13-9, 13-10, 13-13, 13-14, 13-15, 13-17, 13-18, SUBMITTER: UMC Technical Committee Proposal Revise text as follows: 1. In Table 13-9 add Special Use line to table that reads Pipe Sizing Between 2 psig Service and Line Pressure Regulator. [NFPA 54: Table 6.3(C)] 2. In Table change psi to inch wc [NFPA 54 Table 6.3 (d)] 3. In Table 13-13, add a Special Use line to the table that reads Tube Sizing Between 2 psig Service and Line Pressure Regulator [NFPA 54: Table 6.3 (g)] 4. In Table 13-14, add a Special Use line to the table that reads CSST Sizing Between Single or Second Stage (Low Pressure) Regulator and Appliance Shutoff Valve. [NFPA 54: Table 6.3 (h)] 5. In Table add a Special Use line to the table that reads CSST Sizing Between 2 psig Service and Line Pressure Regulator. [NFPA 54: Table 6.3 (j)] 6. In Table 13-17, add a Special Use line to the table that reads PE Pipe Sizing Between Integral 2-Stage Regulator at Tank or 2nd Stage (Low Pressure Regulator) and Building. [NFPA 54: Table 6.3 (k)] 7. In Table 13-18, add a Special Use line to table that reads PE Pipe Sizing Between 2 psi Service Regulator and Line Pressure Regulator. [NFPA 54: Table 6.3 (l)] 8. In Table 13-19, add a Special Use line to table that reads PE Tube Sizing Between Integral 2-Stage Regulator at Tank or Second Stage (Low Pressure Regulator) and Building. [NFPA 54: Table 6.3 (m)] In Table 13-9, the addition of the Special Use line will help clarify where pipe is typically used in propane gas systems for the pressure as shown in the table. In Table 13-10, changing psi to inch will correct a typing error. 80

81 In Table 13-13, the addition of the Special Use line will clarify where this tubing is typically used in propane gas systems for the pressure as shown in the table. In Table 13-14, the addition of the Special Use line will clarify where CSST is typically used in propane gas systems for the pressure as shown in the table. In Table 13-15, the addition of the Special Use line will clarify where CSST is typically used in propane gas systems for the pressures shown in the table. In Table 13-17, the addition of the Special Use line will clarify where PE pipe is typically used in propane gas systems, for the pressure as shown in the table. Section (3) of NFPA 58 limits PE pipe to (a) vapor service at 30 psig max and (b) Installation outdoors and underground. NFPA 54, also says plastic pipe should be installed outdoors and underground only. In Table 13-18, the addition of the Special Use line will clarify where polyethylene tubing is typically used in propane gas systems for the pressure as shown in the table. NFPA 58, (3) limits PE pipe to (a) vapor service at 30 psig max and (b) Installation outdoors and underground. Section of NFPA 54 also says plastic pipe should be installed outdoors and underground only. In Table 13-19, the addition of the Special Use line will clarify polyethylene tubing is typically used in propane gas systems for the pressure as shown in the table. NFPA 58, (3) limits PE pipe to (a) vapor service at 30 psig max and (b) Installation outdoors and underground. NFPA 54, also says plastic pipe should be installed outdoors and underground only. COMMITTEE ACTION: Accept as Submitted A PUBLIC COMMENT(S) WAS SUBMITTED FOR REVIEW AND CONSIDERATION. PUBLIC COMMENT: Submitter: Ted Lemoff, NFPA Request to accept this code change proposal as modified by this public comment The following regulations, as set forth in this section and in Section , Required Gas Piping Size, shall be the standard for the installation of gas piping. All natural gas regulations and tables are based on the use of gas having a specific gravity of sixty hundredths (0.60), supplied at six (6) to eight (8) inches ( mm) water column pressure at the outlet of the meter or regulator. Where the natural gas supplier cannot maintain a minimum inlet pressure of six (6) inches (152 mm) water column pressure, Table allowing a maximum pressure drop of 0.3-inch (7.6 mm) 0.5-inch (12.7 mm) water column shall be used. For undiluted liquefied petroleum gas, gas piping may be sized at eleven (11) inches (279 mm) water column pressure at the outlet of the meter or regulator and specific gravity of one and fifty hundredths (1.50) Table for Sizing Gas-Piping Systems. Tables through shall be used to size gas piping in conjunction with one of the methods described in Sections through [NFPA 54:6.3] For conditions other than those covered by Section , such as longer runs or greater gas demands, the size of each gas piping system shall be determined by standard engineering methods acceptable to the Authority Having Jurisdiction, and each such system shall be so designed that the total pressure drop between the meter or other point of supply and any outlet when full demand is being supplied to all outlets, shall comply with the requirements of Section Delete Table 13-7, and replace with Table 13-8 for Table 13-7 throughout Chapter 13. (See attached table 13-7) 81

82 Table change Special Use to Intended Use. Table change Special Use to Intended Use. Table change Special Use to Intended Use. Table change Special Use to Intended Use. Table change Special Use to Intended Use. Table change Special Use to Intended Use. Table change Special Use to Intended Use. Proposal removes specific pressure drop to be used in sizing piping systems, and references Section With this change the issue of which of the 2 Tables, 13-7 or 13-8 should be used for sizing a steel pipe systems operating at 7 in. water column. Tables 13-7 and 13-8 are both applicable to 7 water column natural gas piping systems, but 13-7 provides a pressure drop of 0.3 w.c., while 13-8 provides a pressure drop of 0.5 w.c. A lower pressure drop will result in larger pipe sized in some or all of the piping system branches. With Table 13-7, with the lower pressure drop Table removed, Table 13-8 will be used, and this table will provided adequate pipe size for the vast majority of piping systems. The only time when a lower pressure drop may be required is in areas with inadequate gas supply pressure. In these cases, the gas utility company should make installers aware of the need for lower pressure drop and how to provide it. This comment proposes a revision to several pipe sizing tables. The term intended use is more appropriate. Item # 111 Comment Seq # 32 UMC 2009 Table 17-1, Chapter 17 SUBMITTER: John Taecker Chair, UMC Standards Task Group Revise Table 17-1 as follows: Delete existing Table 17-1 and keyword table. To correlate with the new UPC Standards table format, recommended by the UPC Standards Task Group, which will add the application and applicable code sections applying to the standards. COMMITTEE ACTION: Accept as Submitted A PUBLIC COMMENT(S) WAS SUBMITTED FOR REVIEW AND CONSIDERATION. PUBLIC COMMENT: Submitter: Standards Task Group Request to accept the code change proposal as modified by this public comment. THE SCOPE OF THE STANDARDS TASK GROUP INCLUDES ADDING CROSS-REFERENCES TO TABLE 17-1 AND RECOMMENDED WHERE SUCH REFERENCES ARE APPLICABLE TO THE REF- ERENCED STANDARDS AND TO UPDATE THE FORMAT OF STANDARDS REFERENCING MATERI- ALS AND PRODUCTS. THE RECOMMENDED PROPOSED CODE CHANGES WERE PLACED IN THE MONOGRAPH BASED ON NUMERICAL ORDER ABOING WITH THE ITEM NUMBER AS SHOWN NEXT TO THE PROPOSALS. THE FOLLOWING ARE RECOMMENDATIONS FROM THE STANDARDS TASK GROUP. 82

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