National Fire Protection Association 1 Batterymarch Park, Quincy, MA 02169-7471 Phone: 617-770-3000 • Fax: 617-770-0700 • www.nfpa.org MEMORANDUM TO: Technical Committee on the National Fuel Gas Code FROM: Kimberly Shea, Project Administrator DATE: February 18, 2016 SUBJECT: NFPA 54 FD TC Ballot Final Results (A2017) According to the final ballot results, all ballot items received the necessary affirmative votes to pass ballot with the exception of First Revision No. 70. As a result, the revision is now designated as Committee Input No. 70 and the text will not be included in the First Draft. 26 Members Eligible to Vote 1 Members Ballot Not Returned (Fossa) 3 Members Voted Affirmative w/ comment on one or more Revision (Davis, Gorham, Holmes) 12 Members Voted Negative on one or more Revision (Berning, Coates, Corcoran, Davis, Deegan, Gorham, Lemoff, Mortimer, Osterhaus, Papageorge, Swim, Switzer, Jr. ) 2 Members Abstained on one or more Revision (Corcoran, Lemoff) The attached report contains all First Revisions that passed ballot with final ballot counts and voting comments. To pass ballot, each revision requires: (1) a simple majority of those eligible to vote and (2) an affirmative vote of 2 /3 of ballots returned. See Sections 3.3.4.3.(c) and of the Regulations Governing the Development of NFPA Standards.
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National Fire Protection Association 1 Batterymarch Park, Quincy, MA 02169-7471 Phone: 617-770-3000 • Fax: 617-770-0700 • www.nfpa.org
M E M O R A N D U M TO: Technical Committee on the National Fuel Gas Code FROM: Kimberly Shea, Project Administrator DATE: February 18, 2016 SUBJECT: NFPA 54 FD TC Ballot Final Results (A2017)
According to the final ballot results, all ballot items received the necessary affirmative votes to pass ballot with the exception of First Revision No. 70. As a result, the revision is now designated as Committee Input No. 70 and the text will not be included in the First Draft.
26 Members Eligible to Vote 1 Members Ballot Not Returned (Fossa) 3 Members Voted Affirmative w/ comment on one or more Revision (Davis, Gorham, Holmes) 12 Members Voted Negative on one or more Revision (Berning, Coates, Corcoran, Davis,
Deegan, Gorham, Lemoff, Mortimer, Osterhaus, Papageorge, Swim, Switzer, Jr. ) 2 Members Abstained on one or more Revision (Corcoran, Lemoff) The attached report contains all First Revisions that passed ballot with final ballot counts and voting comments.
To pass ballot, each revision requires: (1) a simple majority of those eligible to vote and (2) an affirmative vote of 2/3 of ballots returned. See Sections 3.3.4.3.(c) and of the Regulations Governing the Development of NFPA Standards.
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12.5.2 Plastic Piping.Where plastic piping is used to vent an appliance, the
(1) Such piping shall be listed and labeled in accordance with UL 1738.
(2) The piping shall be installed in accordance with the piping manufacturer's instructions andthe conditions of its listing.
(3) The appliance shall be listed for use with such venting materials and the .
(4) The appliance manufacturer's installation instructions shall identify the specific type ofplastic piping material to be used .
12.5.3 Plastic Vent Solvent Cemented Joints.Plastic pipe and fittings used to vent appliances shall be installed in accordance with theappliance manufacturer's installation instructions. Where Where a primer is required , it forsolvent cemented joints, the primer shall be of a contrasting color.
12.5.4 Special Gas Vents.Special gas vents shall be listed and labeled in accordance with UL 1738 and installed inaccordance with the special gas vent manufacturer's installation instructions.
Submitter Information Verification
Submitter Full Name:Laura MontvilleOrganization: [ Not Specified ]Street Address:City:State:Zip:Submittal Date: Wed Oct 14 16:52:13 EDT 2015
Committee Statement
CommitteeStatement:
The code is revised to require all venting products to be listed. The thorough evaluationrequired by UL 1738 will ensure that the products used as venting materials areintended by the manufacturers for that purpose.
ResponseMessage:
Public Input No. 82NFPA 542015 [Section No. 12.5.4]
Public Input No. 135NFPA 542015 [Section No. 12.5.2]
Ballot Results
This item has failed ballot
26 Eligible Voters1 Not Returned10 Negative with Comments15 Affirmative All0 Affirmative with Comments0 Abstention
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The revision would require all plastic materials used to vent Category II, III, and IV appliances tomeet UL 1738. This change would place the code in direct conflict with several ANSI safetystandards for gas appliances, such as for water heaters (ANSI Z21.10.1 and Z21.10.3), boilers(ANSI Z21.13), and central furnaces (ANSI Z21.47). These standards for years have allowed forthe use of PVC and CPVC materials for use in venting condensing gas appliances, when certaintesting and performance conditions are met. This ensures that the safe performance of suchmaterials is met when certifying a specific appliance design for use with plastic materials. Inaddition, the water heater and boiler standards have updated their coverage to prohibit the use ofcellular core PVC and CPVC. This code proposal would not only require manufacturers of certifiedappliances to search for UL 1738 listed plastic venting systems, but it would place in doubt thoseplastic venting systems that have been certified as part of a listed appliance with proven safeperformance in the field for many years. It is not known if any PVC or CPVC plastic ventingsystems exist on the market that are listed to UL 1738. Testing a plastic venting system separatefrom the appliance does not ensure that the vent system will be appropriate for a specificappliance. The UL 1738 standard makes assumptions about the volume and flow of flue gas for thetest that in some cases are lower than the actual appliance would produce. The amount of volumeand velocity of flue gas will impact the vent pipe wall temperatures that the vent standard does notreplicate for a specific appliance design. There have been efforts made in the past to correlate thevent standard performance test to that of the appliance standard tests for plastic venting systemsbut this work has not resulted in adequate coverage for the venting standard. Until this isdemonstrated and proven to be at least equal to the appliance standards’ coverage it would bepremature to require such a change to the NFGC.
Coates, Sharon E.
The proposal would require a retrofit of all venting systems currently in use and compliance withcodes as installed and this proposal would create an unnecessary hardship to retrofit all systemsand maybe not be the safest solution. I feel sufficient evidence to require this change was notpresent.
Corcoran, Shannon M.
The revision would require all plastic piping used to vent Category II, III, and IV appliances tomeet the UL 1738. PVC venting materials are currently permitted by the NFGC and the applicableappliance standards. The appliance is tested and certified with the venting systems. The proposedrevision to require all plastic venting systems to be listed to UL 1783 would create a conflictbetween the code and appliance standards and manufacturer’s instructions. The public input didnot provide evidence that a widespread safety issue exists. Nor was any evidence provided thatdocuments a deficiency in the ANSI appliance standards, which require the plastic pipe chosen bythe appliance manufacture be tested and listed for use with that appliance.
Davis, Gerald G.
This revision would cause a conflict with the current appliance listing for condensing furnaces. Theappliance listing allows PVC piping to be used to vent the equipment.
Deegan, Mike
Specifically reviewing the proposal requirement that the use of PVC for venting of category II, IIIand IV appliances be listed to the UL 1738 standard. Currently the manufacturers of thesecondensing appliances allow the use of PVC for the venting of these appliances. This requirementwould conflict the manufacturer's design and installation instructions. Additionally no substantiation
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has been provided that a deficiency exists in the current ANSI standards which require the plasticpipe chosen by the appliance manufacture be tested and listed for use with that appliance.
Gorham, Mike
The public input did not establish that any significant safety problem exists. Appliancemanufacturers have recommended nonlisted PVC for years and are apparently content to continueto do so. This is a nonproblem.
Lemoff, Theodore C.
1. The committee statement that the revision will require all venting products to be listed is notcorrect. Single Wall Metal Pipe is not required to be listed. 2. The format of Table 12.5.1 ischanged by deleting "As specified or furnished by manufacturers of listed appliances" with noreplacement. A statement should be provided to guide the user, rather than have this table serveas an index. 3. No substantiation is provided by the committee to support the new requirement thatplastic gas vents be listed. These product have been in use for at least 20 years. If failures haveoccurred they should have been reported to the committee. In PI 135 the substantiation points tothe advantages of listing plastic venting products to UL 1738, but does not provide any reason thatthe existing products are not adequate, rather it states that the testing in UL 1738 is more thoroughthan the current ASTM standards. If listing of plastic vent products is to be made mandatory, itshould be based on technical substantiation that unlisted products are not working, not that onestandard is better than another.
Osterhaus, James T.
Agree with the comments made by those voting in the initial ballot against the proposed revision.
Papageorge, Andrea Lanier
The proposed amendments would require that plastic pipe meet UL 1738 when used to ventcategory II, III, and IV appliances. PVC, which is currently permitted for use by manufacturers forventing of condensing appliances, is not listed by UL 1738. There was not sufficient evidencepresented to require this change.
Swim, Peter C.
The proposed revision would create a conflict between the code and appliance standards andmanufacturer’s instructions. The public input did not indicate that a safety issue exists.
Affirmative AllAguilar, Hugo
Antonov, Dmitry
Brania, Jonathan
Brewer, James P.
Crane, Thomas R.
Edgar, Glen A.
Feehan, Pennie L.
Gress, Gregg A.
Hagensen, Steen
Himes, Patricio J.
Holmes, Peter T.
Kulik, Marek
Mortimer, Frank J.
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5.6.3 Metallic Tubing.Seamless copper, aluminum alloy, or steel tubing 5.6.3.1 Tubing shall not be used withgases corrosive to such the tubing material.
Submitter Information Verification
Submitter Full Name:Laura MontvilleOrganization: National Fire Protection AssocStreet Address:City:State:Zip:Submittal Date: Wed Dec 02 09:21:35 EST 2015
Committee Statement
CommitteeStatement:
This revision makes this section consistent with the format used within thecode and clarifies the application.
ResponseMessage:
Ballot Results
This item has passed ballot
26 Eligible Voters1 Not Returned23 Affirmative All2 Affirmative with Comments0 Negative with Comments0 Abstention
Not ReturnedFossa, Alberto Jose
Affirmative AllAguilar, Hugo
Antonov, Dmitry
Berning, David
2/18/2016 National Fire Protection Association Report
First Revision No. 61NFPA 542015 [ Section No. 1.1.1.1(B) ]
(B) The maximum operating pressure shall be This code shall apply to natural gas systemsoperating at a pressure of 125 psi (862 kPa) or less .
Exception No. 1: Piping systems for gas–air mixtures within the flammable range arelimited to a maximum pressure of 10 psi (69 kPa).
Exception No. 2: LPGas piping systems are limited to 20 psi (140 kPa), except asprovided in 5.5.1 (6).
(C) This code shall apply to LPGas systems operating at a pressure of 50 psi (345 kPa) orless.
(D) This code shall apply to gas–air mixture systems operating within the flammable rangeat a pressure of 10 psi (69 kPa) or less.
Submitter Information Verification
Submitter Full Name:Laura MontvilleOrganization: [ Not Specified ]Street Address:City:State:Zip:Submittal Date: Tue Oct 13 12:58:36 EDT 2015
Committee Statement
CommitteeStatement:
This is a more succinct and clear way to state the operating limitations byeliminating the exceptions from the scoping section and moving the requirements(See First Revision 12). The existing 50 psi limitation on LPgas systems isrecognized in the scope and is consistent with Chapter 5 and NFPA 58.
ResponseMessage:
Public Input No. 54NFPA 542015 [Section No. 1.1.1.1(B)]
Ballot Results
This item has passed ballot
26 Eligible Voters1 Not Returned21 Affirmative All
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This is a major change to 50psi from 20, with no reason given.
Switzer, Jr., Franklin R.
I did not find support for the rational given regarding the change from 20 PSIG for LPGas to 50PSIG for LPGas. It also appears that FR12 is still referencing only the 20 PSIG pressurerange even within the exception 5.5.3(6).
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First Revision No. 54NFPA 542015 [ Section No. 1.1.1.2 ]
1.1.1.2 This code shall not apply to the following items (reference standards for some of whichappear in Annex K ) :
(1) Portable LPGas appliances and equipment of all types that are not connected to afixed fuel piping system
(2) Installation of appliances such as brooders, dehydrators, dryers, and irrigationequipment used for agricultural purposes
(3) Raw material (feedstock) applications except for piping to special atmospheregenerators
(4) Oxygen–fuel gas cutting and welding systems
(5) Industrial gas applications using such gases as acetylene and acetyleniccompounds, hydrogen, ammonia, carbon monoxide, oxygen, and nitrogen
(6) Petroleum refineries, pipeline compressor or pumping stations, loading terminals,compounding plants, refinery tank farms, and natural gas processing plants
(7) Large integrated chemical plants or portions of such plants where flammable orcombustible liquids or gases are produced by chemical reactions or used inchemical reactions
(8) LPGas installations at utility gas plants
(9) Liquefied natural gas (LNG) installations
(10) Fuel gas piping in electric utility power plants
(11) Proprietary items of equipment, apparatus, or instruments such as gas generatingsets, compressors, and calorimeters
(12) LPGas equipment for vaporization, gas mixing, and gas manufacturing
(13) LPGas piping for buildings under construction or renovations that is not to becomepart of the permanent building piping system — that is, temporary fixed piping forbuilding heat
(14) Installation of LPGas systems for railroad switch heating
(15) Installation of LPGas and compressed natural gas (CNG) systems on vehicles
(16) Gas piping, meters, gas pressure regulators, and other appurtenances used by theserving gas supplier in distribution of gas, other than undiluted LPGas
(17) Building design and construction, except as specified herein
(18) Fuel gas systems on recreational vehicles manufactured in accordance with NFPA1192, Standard on Recreational Vehicles
(19) Fuel gas systems using hydrogen as a fuel
(20) Construction of appliances
Submitter Information Verification
2/18/2016 National Fire Protection Association Report
Submitter Full Name:Laura MontvilleOrganization: National Fire Protection AssocStreet Address:City:State:Zip:Submittal Date: Fri Oct 30 15:37:17 EDT 2015
Committee Statement
Committee Statement: References have been updated to their most recent editions.Response Message:
Ballot Results
This item has passed ballot
2/18/2016 National Fire Protection Association Report
ASTM A 53 A53 , Standard Specification for Pipe, Steel, Black and HotDipped, ZincCoated Welded and Seamless, 2012.
ASTM A 106 A106 , Standard Specification for Seamless Carbon Steel Pipe for HighTemperature Service, 2011 2014 .
ASTM A 254 A254 , Standard Specification for CopperBrazed Steel Tubing,1997(Reaffirmed 2007) 2012 .
ASTM A268, Standard Specification for Seamless and Welded Ferritic and MartensiticStainless Steel Tubing for General Service , 2010.
ASTM A269, Standard Specification for Seamless and Welded Austenitic StainlessSteel Tubing for General Service , 2015.
ASTM A312, Standard Specification for Seamless, Welded, and Heavily Cold WorkedAustenitic Stainless Steel Pipes , 2015.
ASTM B 88 B88 , Standard Specification for Seamless Copper Water Tube,2009 2014 .
ASTM B 210 B210 , Standard Specification for Aluminum and AluminumAlloy DrawnSeamless Tubes, 2004 2010 .
ASTM B 241 B241 , Standard Specification for Aluminum and AluminumAlloy SeamlessPipe and Seamless Extruded Tube, 2010 2012 .
ASTM B 280 B280 , Standard Specification for Seamless Copper Tube for AirConditioning and Refrigeration Field Service,2008 2013 .
ASTM D 2513 D2513 , Standard Specification for Polyethylene (PE) Gas Pressure Pipe,Tubing, and Fittings, 2012a 2014 .
ASTM D 2513 D2513 , Standard Specification for Thermoplastic Gas Pressure Pipe,Tubing, and Fittings, 2008 2009 .
ASTM E 136 E136 , Standard Test Method for Behavior of Materials in a Vertical TubeFurnace at 750 Degrees C, 2012.
ASTM E 2652 E2652 , Standard Test Method for Behavior of Materials in a TubeFurnace with a Coneshaped Airflow Stabilizer, at 750°C, 2012.
ASTM F 1973 F1973 , Standard Specification for Factory Assembled Anodeless Risersand Transition Fittings in Polyethylene (PE) and Polyamide 11 (PA11) and Polyamide 12(PA12) Fuel Gas Distribution Systems,2008 2013 .
ASTM F 2509 F2509 , Standard Specification for FieldAssembled Anodeless Riser Kitsfor Use on Outside Diameter Controlled Polyethylene Gas Distribution Pipe andTubing,2006 (Reaffirmed 2012) .
Submitter Information Verification
Submitter Full Name:Laura Montville
2/18/2016 National Fire Protection Association Report
First Revision No. 92NFPA 542015 [ Section No. 2.3.3 ]
2.3.3 CSA America Group Publications.Canadian Standards Association CSA Group , 8501 East Pleasant Valley Road,Cleveland, OH 441315575, (216) 5244990, www.csaamerica csagroup .org.
ANSI Z21.24/CSA 6.10, Connectors for Gas Appliances, 2006 (Reaffirmed 2011 2015 ) .
ANSI Z21.41/CSA 6.9, QuickDisconnect Devices for Use with Gas FuelAppliances,2003 2014 .
ANSI Z21.54/CSA 8.4, Gas Hose Connectors for Portable Outdoor GasFiredAppliances,2002 (Reaffirmed 2007) 2014 .
ANSI Z21.69/CSA 6.16, Connectors for Movable Gas Appliances, 2009.
ANSI Z21.75/CSA 6.27, Connectors for Outdoor Gas Appliances and ManufacturedHomes, 2007 (reaffirmed 2012) .
ANSI Z21.80/CSA 6.22, Line Pressure Regulators, 2011.
ANSI Z21.90/CSA 6.24, Gas Convenience Outlets and Optional Enclosures,2001(Reaffirmed 2005) 2015 .
ANSI Z21.93/CSA 6.30, Excess Flow Valves for Natural and LPGas with Pressures Upto 5 psig, 2013.
ANSI Z83.4/CSA 3.7, NonRecirculating Direct GasFired Industrial Air Heaters,2013 2015 .
ANSI Z83.18, Recirculating Direct GasFired Industrial Air Heaters,2004 2015 .
Submitter Information Verification
Submitter Full Name:Laura MontvilleOrganization: National Fire Protection AssocStreet Address:City:State:Zip:Submittal Date: Fri Oct 30 15:19:57 EDT 2015
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First Revision No. 95NFPA 542015 [ Section No. 2.3.4 ]
2.3.4 MSS Publications.Manufacturers Standardization Society of the Valve and Fittings Industry, 127 ParkStreet, NE, Vienna, VA 221806671 4602 , (703) 2816613, www.msshq.com.
ANSI/MSS SP58, Pipe Hangers and Supports — Materials, Design, Manufacture,Selection, Application, and Installation, 2009.
Submitter Information Verification
Submitter Full Name:Laura MontvilleOrganization: National Fire Protection AssocStreet Address:City:State:Zip:Submittal Date: Fri Oct 30 15:58:05 EDT 2015
Committee Statement
Committee Statement: Zip code updated.Response Message:
Ballot Results
This item has passed ballot
26 Eligible Voters1 Not Returned23 Affirmative All2 Affirmative with Comments0 Negative with Comments0 Abstention
Not ReturnedFossa, Alberto Jose
Affirmative AllAguilar, Hugo
Antonov, Dmitry
Berning, David
2/18/2016 National Fire Protection Association Report
First Revision No. 59NFPA 542015 [ Section No. 2.4 ]
2.4 References for Extracts in Mandatory Sections.NFPA 31, Standard for the Installation of OilBurning Equipment,2011 edition.
NFPA 70®, National Electrical Code®, 2011 edition.
NFPA 88A, Standard for Parking Structures,2011 2015 edition.
NFPA 90A, Standard for the Installation of AirConditioning and VentilatingSystems, 2015 edition.
NFPA 101®, Life Safety Code®, 2012 edition.
NFPA 211, Standard for Chimneys, Fireplaces, Vents, and Solid Fuel–BurningAppliances, 2010 edition.
NFPA 501, Standard on Manufactured Housing, 2010 edition.
NFPA 5000®, Building Construction and Safety Code®, 2012 edition.
Submitter Information Verification
Submitter Full Name:Laura MontvilleOrganization: [ Not Specified ]Street Address:City:State:Zip:Submittal Date: Mon Oct 12 20:06:06 EDT 2015
Committee Statement
CommitteeStatement:
Updating extracted document to most recent edition. The other documents will beupdated at the Second Draft stage when the new editions have been issued (SeeCommittee Input).
ResponseMessage:
Ballot Results
This item has passed ballot
26 Eligible Voters1 Not Returned23 Affirmative All2 Affirmative with Comments0 Negative with Comments
2/18/2016 National Fire Protection Association Report
First Revision No. 3NFPA 542015 [ Section No. 3.3.48 ]
3.3.48 Gas Convenience Outlet.A permanently mounted, handoperated device providing a means for connecting anddisconnecting an appliance or an appliance connector to the gas supply piping. Thedevice includes an integral, manually operated gas valve with a nondisplaceable valvemember so that disconnection can be accomplished only when the manually operatedgas valve is in the closed position.
Submitter Information Verification
Submitter Full Name:Laura MontvilleOrganization: [ Not Specified ]Street Address:City:State:Zip:Submittal Date: Mon Sep 14 10:07:39 EDT 2015
Committee Statement
CommitteeStatement:
The definition of a gas convenience outlet is contained in the first sentence. It is notappropriate to have performance requirements in the definition. The Code requiresthese devices to be listed in 9.6.7 and the deleted material is covered by that listingstandard.
ResponseMessage:
Public Input No. 91NFPA 542015 [Section No. 3.3.48]
Ballot Results
This item has passed ballot
26 Eligible Voters1 Not Returned22 Affirmative All2 Affirmative with Comments1 Negative with Comments0 Abstention
Not ReturnedFossa, Alberto Jose
2/18/2016 National Fire Protection Association Report
First Revision No. 62NFPA 542015 [ Section No. 3.3.66 ]
3.3.66 Mixing Blower.A motordriven blower to produce gas–air mixtures for combustion through one or moregas burners or nozzles on a singlezone industrial heating appliance or on each controlzone of a multizone industrial appliance or on each control zone of a multizoneinstallation .
Submitter Information Verification
Submitter Full Name:Laura MontvilleOrganization: [ Not Specified ]Street Address:City:State:Zip:Submittal Date: Tue Oct 13 13:33:57 EDT 2015
Committee Statement
Committee Statement: The deleted text is extraneous and not needed in a definition.Response Message:
Public Input No. 97NFPA 542015 [Section No. 3.3.66]
Ballot Results
This item has passed ballot
26 Eligible Voters1 Not Returned23 Affirmative All2 Affirmative with Comments0 Negative with Comments0 Abstention
Not ReturnedFossa, Alberto Jose
Affirmative AllAguilar, Hugo
Antonov, Dmitry
2/18/2016 National Fire Protection Association Report
First Revision No. 81NFPA 542015 [ Section No. 3.3.84.4 ]
3.3.84.4* MonitoringMonitor Regulator.A pressure regulator set installed in series with another a pressure regulator and thatsenses the same downstream pressure as the pressure regulator for the purpose ofautomatically taking over in an emergency the control of the pressure downstream of theregulator in case that pressure tends to exceed a set maximum preventing anoverpressure in the downstream piping system when the pressure regulator fails tocontrol the downstream pressure .
Supplemental Information
File Name DescriptionStaff_use_only_FR_81_A.3.3.84.4.docx New annex material
Submitter Information Verification
Submitter Full Name:Laura MontvilleOrganization: [ Not Specified ]Street Address:City:State:Zip:Submittal Date: Thu Oct 15 10:52:55 PDT 2015
Committee Statement
CommitteeStatement:
This revision clarifies the difference between a monitor regulator versus aseries regulator.
ResponseMessage:
Public Input No. 14NFPA 542015 [Section No. 3.3.84.4]
Ballot Results
This item has passed ballot
26 Eligible Voters1 Not Returned23 Affirmative All2 Affirmative with Comments0 Negative with Comments0 Abstention
2/18/2016 National Fire Protection Association Report
First Revision No. 98NFPA 542016 [ New Section after 3.3.84.7 ]
3.3.84.8 Regulator Vent.The opening in the atmospheric side of the regulator housing permitting the in and outmovement of air to compensate for the movement of the regulator diaphragm.
Submitter Information Verification
Submitter Full Name:Laura MontvilleOrganization: National Fire Protection AssocStreet Address:City:State:Zip:Submittal Date: Thu Jan 07 15:40:51 EST 2016
Committee Statement
CommitteeStatement:
The definition for regulator vent was unintentionally deleted from the 2015 editionwhen "gas vent" and related subdefinitions were moved by FR14. This revision isadding the definition back into the code, and realigning NFPA 54 with ANSI Z223.1.
ResponseMessage:
Ballot Results
This item has passed ballot
26 Eligible Voters1 Not Returned23 Affirmative All2 Affirmative with Comments0 Negative with Comments0 Abstention
Not ReturnedFossa, Alberto Jose
Affirmative AllAguilar, Hugo
Antonov, Dmitry
2/18/2016 National Fire Protection Association Report
First Revision No. 41NFPA 542015 [ Section No. 3.3.86 ]
3.3.86 Safety Blowout (Backfire Preventer).A protective device located in the discharge piping of large mixing machines,incorporating a bursting disc for excessive pressure release, means for stopping a flamefront, and an electric switch or other release mechanism for actuating a builtin orseparate safety shutoff.
Submitter Information Verification
Submitter Full Name:Laura MontvilleOrganization: [ Not Specified ]Street Address:City:State:Zip:Submittal Date: Wed Sep 16 09:08:19 EDT 2015
Committee Statement
CommitteeStatement:
The definition is revised to delete the location of the device, which is not neededin the definition. Location of safety blowouts is covered in 7.12.6.
ResponseMessage:
Public Input No. 98NFPA 542015 [Section No. 3.3.86]
Ballot Results
This item has passed ballot
26 Eligible Voters1 Not Returned23 Affirmative All2 Affirmative with Comments0 Negative with Comments0 Abstention
Not ReturnedFossa, Alberto Jose
Affirmative AllAguilar, Hugo
2/18/2016 National Fire Protection Association Report
First Revision No. 6NFPA 542015 [ Sections 5.1.2.1, 5.1.2.2 ]
5.1.2 Addition to Existing System.When additional appliances are being connected to a gas piping system, the existingpiping shall be checked to determine whether it has adequate capacity. If inadequate Ifthe capacity of the system is determined to be inadequate for the additional appliances ,the existing system shall be enlarged as required, or separate gas piping of adequatecapacity shall be provided.
Moved by FR6
5.1.2.1 When additional appliances are being connected to a gas piping system, the existingpiping shall be checked to determine whether it has adequate capacity.
5.1.2.2 If inadequate, the existing system shall be enlarged as required, or separate gas pipingof adequate capacity shall be provided.
Submitter Information Verification
Submitter Full Name:Laura MontvilleOrganization: [ Not Specified ]Street Address:City:State:Zip:Submittal Date: Mon Sep 14 11:28:56 EDT 2015
Committee Statement
CommitteeStatement:
The intent of the provision is clarified as proposed and combined with theprevious related section.
ResponseMessage:
Public Input No. 102NFPA 542015 [Section No. 5.1.2.2]
Ballot Results
This item has passed ballot
26 Eligible Voters1 Not Returned23 Affirmative All2 Affirmative with Comments
2/18/2016 National Fire Protection Association Report
First Revision No. 12NFPA 542015 [ Section No. 5.5.1 ]
5.5 Piping System Operating Pressure Limitations Operating Pressure .5.5.1 Maximum Design Operating Pressure Piping System Operating PressureLimitations .
The maximum design operating pressure for piping systems located inside buildingsshall not exceed 5 psi (34 kPa) unless one or more of the following conditions aremet: The maximum design operating pressure for any piping system shall not exceed125 psi (862 kPa) .
The piping is located in a ventilated chase or otherwise enclosed for protectionagainst accidental gas accumulation.
The piping is located inside buildings or separate areas of buildings usedexclusively for one of the following:
Industrial processing or heating
Research
Warehousing
Boiler or mechanical rooms
The piping is a temporary installation for buildings under construction.
The piping serves appliances or equipment used for agricultural purposes.
The piping system is an LPGas piping system with a design operating pressuregreater than 20 psi (138 kPa) and complies with NFPA 58 , Liquefied PetroleumGas Code .
5.5.2 Flammable Gas–Air Mixtures.The maximum operating pressure for piping systems for gas–air mixtures within theflammable range shall be 10 psi (69 kPa).
5.5.3 LPGas Piping Systems.The maximum operating pressure for LPGas piping systems shall be 20 psi (140 kPa),except as provided in 5.5.4(7) .
* The piping system is welded.
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5.5.4 Maximum Design Operating Pressure in Buildings .The maximum design operating pressure for any piping systems located inside buildingsshall not exceed 5 psi (34 kPa) unless one or more of the following conditions are met:
(1)
(2) The piping joints are flanged and all pipetoflange connections are made bywelding or brazing.
(3) The piping is located in a ventilated chase or otherwise enclosed for protectionagainst accidental gas accumulation
(4) The piping is located inside buildings or separate areas of buildings usedexclusively for one of the following:
(a) Industrial processing or heating
(b) Research
(c) Warehousing
(d) Boiler or mechanical rooms
(5) The piping is a temporary installation for buildings under construction.
(6) The piping serves appliances or equipment used for agricultural purposes.
(7) The piping system is an LPGas piping system with a design operating pressuregreater than 20 psi (138 kPa) and complies with NFPA 58.
5.5.5 Low Temperature LPGas Systems.LPGas systems designed to operate below −5°F (−21°C) or with butane or a propanebutane mix shall be designed to either accommodate liquid LPGas or to prevent LPGasvapor from condensing back into a liquid.
Supplemental Information
File Name DescriptionStaff_use_only_FR_12_5.5.docx
Submitter Information Verification
Submitter Full Name:Laura MontvilleOrganization: [ Not Specified ]Street Address:City:State:Zip:Submittal Date: Mon Sep 14 18:24:49 EDT 2015
Committee Statement
CommitteeStatement:
The exceptions from 1.1.1.1(B) are being relocated because Chapter 5 is a moreappropriate location for limitations.
In addition, the existing 5.5.1 (now 5.5.4) is revised. The language is intended todisallow threaded connections. Brazed and flanged connections meet this intent.
* The piping system is joints are welded or brazed .
2/18/2016 National Fire Protection Association Report
First Revision No. 13NFPA 542015 [ Section No. 5.6.2.2 ]
5.6.2.2 Steel and , Stainless Steel, and Wrought Iron.
Steel and , stainless steel, and wroughtiron pipe shall be at least of standard weight( Schedule 40) and shall comply with one of the following standards:
(1) ANSI/ASME B36.10M, Welded and Seamless WroughtSteel Pipe
(2) ASTM A 53 A53 , Standard Specification for Pipe, Steel, Black and HotDipped,ZincCoated Welded and Seamless
(3) ASTM A 106 A106 , Standard Specification for Seamless Carbon Steel Pipe forHighTemperature Service
(4) ASTM A312, Standard Specification for Seamless, Welded, and Heavily ColdWorked Austenitic Stainless Steel Pipes
Submitter Information Verification
Submitter Full Name:Laura MontvilleOrganization: [ Not Specified ]Street Address:City:State:Zip:Submittal Date: Tue Sep 15 08:49:15 EDT 2015
Committee Statement
CommitteeStatement:
Recognize the use of stainless steel pipe and tubing products. We have becomeaware that stainless steel for fuel gas distribution in industrial or processing facilitiesis being specified. These facilities may have an environment where stainless steelwould be a more preferable material or the facility is being built with all stainlesssteel processing piping and the designer/owner wishes not to deviate from stainlesssteel for their fuel gas distribution system.
Pipe and Tubing Sizing: Note that Schedule 40 stainless steel pipe has the sameinternal diameter as the current schedule 40 metallic tables and therefore thesetables can be used. Stainless steel tubing products come in a variety of wallthickness and therefore the internal diameter will vary. Since is these products willbe used in specialized locations, their sizing would best be accomplished by use ofthe sizing equations and not generalized tubing tables.
The term "standard weight" has been deleted as it is no longer commonly used andis redundant with "schedule 40".
Public Input No. 112NFPA 542015 [Section No. 5.6.2.2]
Ballot Results
2/18/2016 National Fire Protection Association Report
First Revision No. 14NFPA 542015 [ New Section after 5.6.3.1 ]
5.6.3.3 Stainless Steel.Stainless steel tubing shall comply with one of the following:
(1) ASTM A268, Standard Specification for Seamless and Welded Ferritic andMartensitic Stainless Steel Tubing for General Service
(2) ASTM A269, Standard Specification for Seamless and Welded AusteniticStainless Steel Tubing for General Service
Submitter Information Verification
Submitter Full Name:Laura MontvilleOrganization: [ Not Specified ]Street Address:City:State:Zip:Submittal Date: Tue Sep 15 08:59:27 EDT 2015
Committee Statement
CommitteeStatement:
Recognize the use of stainless steel pipe and tubing products. We have becomeaware that stainless steel for fuel gas distribution in industrial or processing facilitiesis being specified. These facilities may have an environment where stainless steelwould be a more preferable material or the facility is being built with all stainlesssteel processing piping and the designer/owner wishes not to deviate from stainlesssteel for their fuel gas distribution system.
Pipe and Tubing Sizing: Note that Schedule 40 stainless steel pipe has the sameinternal diameter as the current schedule 40 metallic tables and therefore thesetables can be used. Stainless steel tubing products come in a variety of wallthickness and therefore the internal diameter will vary. Since is these products willbe used in specialized locations, their sizing would best be accomplished by use ofthe sizing equations and not generalized tubing tables.
ResponseMessage:
Public Input No. 113NFPA 542015 [New Section after 5.6.3.1]
Ballot Results
This item has passed ballot
26 Eligible Voters
2/18/2016 National Fire Protection Association Report
While I am not opposed to adding stainless steel pipe and tubing specs to the Code, theASTM spec. for stainless steel pipe is not appropriate. ASTM A268 covers ferritic andmartensitic stainless steels (400 series) and not the more appropriate austenitic stainless steels(300 series). A more appropriate spec for austenitic stainless pipe spec is ASTM A312,Standard Specification for Seamless, Welded, and Heavily Cold Worked Austenitic StainlessSteel Pipes.
2/18/2016 National Fire Protection Association Report
First Revision No. 65NFPA 542015 [ Section No. 5.6.6 ]
7.2.2 Protective Coating.Where piping is in contact with a material or an atmosphere exerting a corrosive action,metallic corrosive to the piping system, the piping and fittings shall be coated with acorrosionresistant material shall be used . External or internal coatings or linings Anysuch coating used on piping or components shall not be considered as adding strengthto the system .
Submitter Information Verification
Submitter Full Name:Laura MontvilleOrganization: [ Not Specified ]Street Address:City:State:Zip:Submittal Date: Tue Oct 13 17:48:44 EDT 2015
Committee Statement
CommitteeStatement:
As an installation requirement, this is being relocated to Chapter 7. Therevision to text is editorial for clarity.
ResponseMessage:
Ballot Results
This item has passed ballot
26 Eligible Voters1 Not Returned22 Affirmative All2 Affirmative with Comments1 Negative with Comments0 Abstention
Not ReturnedFossa, Alberto Jose
Affirmative AllAguilar, Hugo
2/18/2016 National Fire Protection Association Report
First Revision No. 20NFPA 542015 [ Section No. 5.6.8.1 ]
5.6.7.1* Pipe Joints.Pipe joints shall be threaded, flanged, brazed, or welded welded, or assembled withpressconnect fittings listed to ANSI LC 4/CSA 6.32, PressConnect Metallic Fittingsfor Use in Fuel Gas Distribution Systems . Where nonferrous pipe is brazed, the brazingmaterials shall have a melting point in excess of 1000°F (538°C). Brazing alloys shallnot contain more than 0.05 percent phosphorus.
Submitter Information Verification
Submitter Full Name:Laura MontvilleOrganization: [ Not Specified ]Street Address:City:State:Zip:Submittal Date: Tue Sep 15 10:03:04 EDT 2015
Committee Statement
CommitteeStatement:
Press connected joints are approved and a safe way to make new, or repairs toexisting fuel gas systems. Listing them gives well defined information for approvalsand design of fuel gas systems.
Public Input No. 13NFPA 542015 [Section No. 5.6.8.1]
Public Input No. 5NFPA 542015 [Section No. 5.6.8.1]
Ballot Results
This item has passed ballot
26 Eligible Voters1 Not Returned23 Affirmative All2 Affirmative with Comments0 Negative with Comments0 Abstention
Not ReturnedFossa, Alberto Jose
Affirmative All
2/18/2016 National Fire Protection Association Report
First Revision No. 16NFPA 542015 [ New Section after 5.6.8.2 ]
5.6.7.3 Stainless Steel Tubing Joints.Stainless steel joints shall be welded, assembled with approved tubing fittings, brazedwith a material having a melting point in excess of 1000°F (538°C), or assembled withpressconnect fittings listed to ANSI LC 4/CSA 6.32, PressConnect Metallic Fittingsfor Use in Fuel Gas Distribution Systems . Brazing alloys and fluxes shall berecommended by the manufacturer for use on stainless steel alloys.
Submitter Information Verification
Submitter Full Name:Laura MontvilleOrganization: [ Not Specified ]Street Address:City:State:Zip:Submittal Date: Tue Sep 15 09:07:53 EDT 2015
Committee Statement
CommitteeStatement:
Recognize the use of stainless steel pipe and tubing products. We have becomeaware that stainless steel for fuel gas distribution in industrial or processing facilitiesis being specified. These facilities may have an environment where stainless steelwould be a more preferable material or the facility is being built with all stainlesssteel processing piping and the designer/owner wishes not to deviate from stainlesssteel for their fuel gas distribution system.
Pipe and Tubing Sizing: Note that Schedule 40 stainless steel pipe has the sameinternal diameter as the current schedule 40 metallic tables and therefore thesetables can be used. Stainless steel tubing products come in a variety of wallthickness and therefore the internal diameter will vary. Since these products will beused in specialized locations, their sizing would best be accomplished by use of thesizing equations and not generalized tubing tables.
The recommendation for alloy and flux is thought to be the best guidance to the userof the code.
ResponseMessage:
Public Input No. 115NFPA 542015 [New Section after 5.6.8.2]
Ballot Results
This item has passed ballot
26 Eligible Voters
2/18/2016 National Fire Protection Association Report
First Revision No. 15NFPA 542015 [ Section No. 5.6.8.2 ]
5.6.7.2 Copper Tubing Joints.Tubing Copper tubing joints shall be made assembled with approved gas tubing fittings,shall be brazed with a material having a melting point in excess of 1000°F (538°C), orshall be made by assembled with pressconnect fittings complying with listed to ANSILC 4/CSA 6.32 , PressConnect Metallic Fittings for Use in Fuel Gas DistributionSystems. Brazing alloys shall not contain more than 0.05 percent phosphorus.
Submitter Information Verification
Submitter Full Name:Laura MontvilleOrganization: [ Not Specified ]Street Address:City:State:Zip:Submittal Date: Tue Sep 15 09:00:22 EDT 2015
Committee Statement
CommitteeStatement:
Recognize the use of stainless steel pipe and tubing products. We have becomeaware that stainless steel for fuel gas distribution in industrial or processing facilitiesis being specified. These facilities may have an environment where stainless steelwould be a more preferable material or the facility is being built with all stainlesssteel processing piping and the designer/owner wishes not to deviate from stainlesssteel for their fuel gas distribution system.
Pipe and Tubing Sizing: Note that Schedule 40 stainless steel pipe has the sameinternal diameter as the current schedule 40 metallic tables and therefore thesetables can be used. Stainless steel tubing products come in a variety of wallthickness and therefore the internal diameter will vary. Since is these products willbe used in specialized locations, their sizing would best be accomplished by use ofthe sizing equations and not generalized tubing tables.
Public Input No. 114NFPA 542015 [Section No. 5.6.8.2]
Ballot Results
This item has passed ballot
26 Eligible Voters1 Not Returned22 Affirmative All3 Affirmative with Comments0 Negative with Comments
2/18/2016 National Fire Protection Association Report
The committee statement provided does not match the changes. FR15 deals with coppertubing joints and the committee statement is dealing with stainless steel.
2/18/2016 National Fire Protection Association Report
First Revision No. 17NFPA 542015 [ Section No. 5.6.8.4 ]
5.6.7.5 Metallic Pipe Fittings.Metallic fittings shall comply with the following:
(1) Threaded fittings in sizes larger than 4 in. (100 mm) shall not be used.
(2) Fittings used with steel, stainless steel, or wroughtiron pipe shall be steel,stainless steel, copper alloy, malleable iron, or cast iron.
(3) Fittings used with copper or copper alloy pipe shall be copper or copper alloy.
(4) Fittings used with aluminum alloy pipe shall be of aluminum alloy.
(5) CastIron Fittings. Castiron fittings shall comply with the following:
(a) Flanges shall be permitted.
(b) Bushings shall not be used.
(c) Fittings shall not be used in systems containing flammable gas–air mixtures.
(d) Fittings in sizes 4 in. (100 mm) and larger shall not be used indoors unlessapproved by the authority having jurisdiction.
(e) Fittings in sizes 6 in. (150 mm) and larger shall not be used unless approvedby the authority having jurisdiction.
(6) Aluminum Alloy Fittings. Threads shall not form the joint seal.
(7) Zinc–Aluminum Alloy Fittings. Fittings shall not be used in systems containingflammable gas–air mixtures.
(8) Special Fittings. Fittings such as couplings, proprietarytype joints, saddle tees,glandtype compression fittings, and flared, flareless, or compressiontype tubingfittings shall be as follows:
(a) Used within the fitting manufacturer's pressure–temperature recommendations
(b) Used within the service conditions anticipated with respect to vibration,fatigue, thermal expansion, or contraction
(c) Acceptable to the authority having jurisdiction
(9) When pipe fittings are drilled and tapped in the field, the operation shall be inaccordance with the following:
(a) The operation shall be performed on systems having operating pressures of 5psi or less.
(b) The operation shall be performed by the gas supplier or their designatedrepresentative.
(c) The drilling and tapping operation shall be performed in accordance withwritten procedures prepared by the gas supplier.
(d) The fittings shall be located outdoors.
(e) The tapped fitting assembly shall be inspected and proven to be free of leaks.
2/18/2016 National Fire Protection Association Report
File Name DescriptionStaff_use_only_FR_17_5.6.8.4.docx
Submitter Information Verification
Submitter Full Name:Laura MontvilleOrganization: [ Not Specified ]Street Address:City:State:Zip:Submittal Date: Tue Sep 15 09:28:02 EDT 2015
Committee Statement
CommitteeStatement:
Recognize the use of stainless steel pipe and tubing products. We have becomeaware that stainless steel for fuel gas distribution in industrial or processing facilitiesis being specified. These facilities may have an environment where stainless steelwould be a more preferable material or the facility is being built with all stainlesssteel processing piping and the designer/owner wishes not to deviate from stainlesssteel for their fuel gas distribution system.
Pipe and Tubing Sizing: Note that Schedule 40 stainless steel pipe has the sameinternal diameter as the current schedule 40 metallic tables and therefore thesetables can be used. Stainless steel tubing products come in a variety of wallthickness and therefore the internal diameter will vary. Since is these products willbe used in specialized locations, their sizing would best be accomplished by use ofthe sizing equations and not generalized tubing tables.
This change removes the word "of" to be consistent with the style of the section andbecause it's not necessary.
ResponseMessage:
Public Input No. 44NFPA 542015 [Section No. 5.6.8.4]
Public Input No. 116NFPA 542015 [Section No. 5.6.8.4]
Ballot Results
This item has passed ballot
26 Eligible Voters1 Not Returned23 Affirmative All2 Affirmative with Comments0 Negative with Comments0 Abstention
2/18/2016 National Fire Protection Association Report
First Revision No. 21NFPA 542015 [ Section No. 5.8.1 ]
5.8.1 Where Required.
A line pressure regulator or gas appliance pressure regulator, as applicable, shall beinstalled where the gas supply pressure is higher than that at which the branch supplyline or appliances are designed to operate or vary beyond design pressure limits exceedsthe maximum allowable inlet pressure of the appliance served .
Submitter Information Verification
Submitter Full Name:Laura MontvilleOrganization: [ Not Specified ]Street Address:City:State:Zip:Submittal Date: Tue Sep 15 10:27:56 EDT 2015
Committee Statement
CommitteeStatement:
The requirement is revised to simplify and clarify where a pressureregulator is required.
ResponseMessage:
Public Input No. 193NFPA 542015 [Section No. 5.8.1]
Ballot Results
This item has passed ballot
26 Eligible Voters1 Not Returned23 Affirmative All2 Affirmative with Comments0 Negative with Comments0 Abstention
Not ReturnedFossa, Alberto Jose
Affirmative AllAguilar, Hugo
2/18/2016 National Fire Protection Association Report
First Revision No. 22NFPA 542015 [ Sections 5.9.3, 5.9.4 ]
5.9.3 Overpressure Protection Devices.5.9.3.1 Pressure relieving or pressure limiting Overpressure protection devices shall be one ofthe following:
(1) Pressure relief valve.
(2) MonitoringMonitor regulator.
(3) Series regulator installed upstream from the line regulator and set to continuouslylimit the pressure on the inlet of the line regulator to the maximum values specifiedby 5.9.2.1 or less.
(4) Automatic shutoff device installed in series with the line pressure regulator and setto shut off when the pressure on the downstream piping system reaches themaximum values specified by 5.9.2.1 or less. This device shall be designed sothat it will remain closed until manually reset.
5.9.3.2 The devices in 5.9.3.1 shall be installed either as an integral part of the service or linepressure regulator or as separate units. Where separate pressure relieving or pressurelimiting overpressure protection devices are installed, they shall comply with 5.9.4through 5.9.9.
5.9.4 Construction and Installation.All pressure relieving or pressure limiting overpressure protection devices shall meet thefollowing requirements:
(1) Be constructed of materials so that the operation of the device is not impaired bycorrosion of external parts by the atmosphere or of internal parts by the gas.
(2) Be designed and installed so they can be operated to determine whether the valveis free. The devices shall also be designed and installed so they can be tested todetermine the pressure at which they operate and be examined for leakage when inthe closed position.
Submitter Information Verification
Submitter Full Name:Laura MontvilleOrganization: [ Not Specified ]Street Address:City:State:Zip:Submittal Date: Tue Sep 15 10:57:49 EDT 2015
Committee Statement
2/18/2016 National Fire Protection Association Report
The title is changed to specify what kinds of devices this section is about. Also"Pressure relieving or pressure limiting" is what an overpressure protection devicedoes.
ResponseMessage:
Public Input No. 196NFPA 542015 [Sections 5.9.3, 5.9.4]
Ballot Results
This item has passed ballot
26 Eligible Voters1 Not Returned23 Affirmative All2 Affirmative with Comments0 Negative with Comments0 Abstention
Not ReturnedFossa, Alberto Jose
Affirmative AllAguilar, Hugo
Antonov, Dmitry
Berning, David
Brania, Jonathan
Brewer, James P.
Coates, Sharon E.
Corcoran, Shannon M.
Crane, Thomas R.
Deegan, Mike
Edgar, Glen A.
Feehan, Pennie L.
Gress, Gregg A.
Hagensen, Steen
Himes, Patricio J.
Holmes, Peter T.
Kulik, Marek
Lemoff, Theodore C.
Mortimer, Frank J.
Osterhaus, James T.
2/18/2016 National Fire Protection Association Report
First Revision No. 23NFPA 542015 [ Section No. 5.9.6 ]
5.9.6 Setting.Each pressure limiting or pressure relieving device shall be set so that the gas pressuresupplied to the connected appliance(s) does not exceed the limits specified in 5.9.2.1and 5.9.2.2 .
Submitter Information Verification
Submitter Full Name:Laura MontvilleOrganization: [ Not Specified ]Street Address:City:State:Zip:Submittal Date: Tue Sep 15 11:01:44 EDT 2015
Committee Statement
CommitteeStatement:
The intent was that the limits not be exceeded for both systems, not just thesystems serving appliances that operate at 14 inches w.c. or less. This was simplyan oversight that occurred during the last cycle that introduced the newly revisedsection 5.9.2.
ResponseMessage:
Public Input No. 22NFPA 542015 [Section No. 5.9.6]
Ballot Results
This item has passed ballot
26 Eligible Voters1 Not Returned23 Affirmative All2 Affirmative with Comments0 Negative with Comments0 Abstention
Not ReturnedFossa, Alberto Jose
Affirmative All
2/18/2016 National Fire Protection Association Report
First Revision No. 18NFPA 542015 [ Section No. 6.2 ]
6.2 Tables for Sizing Natural Gas Piping Systems Using Natural Gas .Table 6.2(a) through Table 6.2(x) shall be used to size gas piping in conjunction withone of the methods described in 6.1.1 through 6.1.3 Sizing of piping systems shall bein accordance with 6.2.1 or 6.2.2 .
2/18/2016 National Fire Protection Association Report
Table 6.2.1(a)Table 6.2(a) through Table 6.2.1(x)Table 6.2(x) shall be used to size gaspiping in conjunction with one of the methods described in 6.1.1 through 6.1.3 for pipingmaterials other than noncorrugated stainless steel tubing .
50 NA 17 35 62 88 187 337 532 1,11060 NA 16 32 56 79 170 306 482 1,00070 NA 14 29 52 73 156 281 443 92480 NA 13 27 48 68 145 262 413 85990 NA 13 26 45 64 136 245 387 806100 NA 12 24 43 60 129 232 366 761125 NA 11 22 38 53 114 206 324 675150 NA 10 20 34 48 103 186 294 612175 NA NA 18 31 45 95 171 270 563200 NA NA 17 29 41 89 159 251 523250 NA NA 15 26 37 78 141 223 464300 NA NA 13 23 33 71 128 202 420350 NA NA 12 22 31 65 118 186 387400 NA NA 11 20 28 61 110 173 360450 NA NA 11 19 27 57 103 162 338500 NA NA 10 18 25 54 97 153 319550 NA NA NA 17 24 51 92 145 303600 NA NA NA 16 23 49 88 139 289650 NA NA NA 15 22 47 84 133 277700 NA NA NA 15 21 45 81 128 266750 NA NA NA 14 20 43 78 123 256800 NA NA NA 14 20 42 75 119 247850 NA NA NA 13 19 40 73 115 239900 NA NA NA 13 18 39 71 111 232950 NA NA NA 13 18 38 69 108 2251,000 NA NA NA 12 17 37 67 105 2191,100 NA NA NA 12 16 35 63 100 2081,200 NA NA NA 11 16 34 60 95 1991,300 NA NA NA 11 15 32 58 91 1901,400 NA NA NA 10 14 31 56 88 1831,500 NA NA NA NA 14 30 54 84 1761,600 NA NA NA NA 13 29 52 82 1701,700 NA NA NA NA 13 28 50 79 1641,800 NA NA NA NA 13 27 49 77 1591,900 NA NA NA NA 12 26 47 74 1552,000 NA NA NA NA 12 25 46 72 151
NA: A flow of less than 10 cfh.
Note: All table entries are rounded to 3 significant digits.
*Table capacities are based on Type K copper tubing inside diameter (shown), whichhas the smallest inside diameter of the copper tubing products.
Table 6.2.1(i) Semirigid Copper Tubing
Gas: Natural
Inlet Pressure:Less than 2psi
2/18/2016 National Fire Protection Association Report
1,300 NA NA NA 14 20 42 76 120 2511,400 NA NA NA 13 19 41 73 116 2411,500 NA NA NA 13 18 39 71 111 2321,600 NA NA NA 13 18 38 68 108 2241,700 NA NA NA 12 17 37 66 104 2171,800 NA NA NA 12 17 36 64 101 2101,900 NA NA NA 11 16 35 62 98 2042,000 NA NA NA 11 16 34 60 95 199
NA: A flow of less than 10 cfh.
Note: All table entries are rounded to 3 significant digits.
*Table capacities are based on Type K copper tubing inside diameter (shown), whichhas the smallest inside diameter of the copper tubing products.
Table 6.2.1(j) Semirigid Copper Tubing
Gas: Natural
Inlet Pressure:Less than 2psi
PressureDrop: 1.0 in. w.c.
SpecificGravity: 0.60
INTENDED USE: Tube Sizing Between House Line Regulator and the Appliance.
300 NA 13 26 45 64 136 245 387 806350 NA 12 24 41 59 125 226 356 742400 NA 11 22 39 55 117 210 331 690450 NA 10 21 36 51 110 197 311 647500 NA NA 20 34 48 103 186 294 612550 NA NA 19 32 46 98 177 279 581600 NA NA 18 31 44 94 169 266 554650 NA NA 17 30 42 90 162 255 531700 NA NA 16 28 40 86 155 245 510750 NA NA 16 27 39 83 150 236 491800 NA NA 15 26 38 80 144 228 474850 NA NA 15 26 36 78 140 220 459900 NA NA 14 25 35 75 135 214 445950 NA NA 14 24 34 73 132 207 4321,000 NA NA 13 23 33 71 128 202 4201,100 NA NA 13 22 32 68 122 192 3991,200 NA NA 12 21 30 64 116 183 3811,300 NA NA 12 20 29 62 111 175 3651,400 NA NA 11 20 28 59 107 168 3501,500 NA NA 11 19 27 57 103 162 3381,600 NA NA 10 18 26 55 99 156 3261,700 NA NA 10 18 25 53 96 151 3151,800 NA NA NA 17 24 52 93 147 3061,900 NA NA NA 17 24 50 90 143 2972,000 NA NA NA 16 23 49 88 139 289
NA: A flow of less than 10 cfh.
Note: All table entries are rounded to 3 significant digits.
*Table capacities are based on Type K copper tubing inside diameter (shown), whichhas the smallest inside diameter of the copper tubing products.
Note: All table entries are rounded to 3 significant digits.
*When this table is used to size the tubing upstream of a line pressure regulator, thepipe or tubing downstream of the line pressure regulator shall be sized using a pressuredrop no greater than 1 in. w.c.
†Table capacities are based on Type K copper tubing inside diameter (shown), whichhas the smallest inside diameter of the copper tubing products.
EHD: Equivalent hydraulic diameter. A measure of the relative hydraulic efficiencybetween different tubing sizes. The greater the value of EHD, the greater the gascapacity of the tubing.
Notes:
(1) Table includes losses for four 90 degree bends and two end fittings. Tubing runs withlarger numbers of bends and/or fittings shall be increased by an equivalent length oftubing to the following equation: L = 1.3n, where L is additional length (ft) of tubing and nis the number of additional fittings and/or bends.
(2) All table entries are rounded to 3 significant digits.
EHD: Equivalent hydraulic diameter. A measure of the relative hydraulic efficiencybetween different tubing sizes. The greater the value of EHD, the greater the gascapacity of the tubing.
Notes:
(1) Table includes losses for four 90 degree bends and two end fittings. Tubing runs withlarger numbers of bends and/or fittings shall be increased by an equivalent length oftubing to the following equation: L = 1.3n, where L is additional length (ft) of tubing and nis the number of additional fittings and/or bends.
(2) All table entries are rounded to 3 significant digits.
EHD: Equivalent hydraulic diameter. A measure of the relative hydraulic efficiencybetween different tubing sizes. The greater the value of EHD, the greater the gascapacity of the tubing.
Notes:
(1) Table includes losses for four 90 degree bends and two end fittings. Tubing runs withlarger numbers of bends and/or fittings shall be increased by an equivalent length oftubing to the following equation: L = 1.3n, where L is additional length (ft) of tubing and nis the number of additional fittings and/or bends.
(2) All table entries are rounded to 3 significant digits.
EHD: Equivalent hydraulic diameter. A measure of the relative hydraulic efficiencybetween different tubing sizes. The greater the value of EHD, the greater the gascapacity of the tubing.
Notes:
(1) Table does not include effect of pressure drop across the line regulator. Whereregulator loss exceeds 3∕4 psi, do not use this table. Consult with regulator manufacturerfor pressure drops and capacity factors. Pressure drops across a regulator may varywith flow rate.
(2) CAUTION: Capacities shown in table may exceed maximum capacity for a selectedregulator. Consult with regulator or tubing manufacturer for guidance.
(3) Table includes losses for four 90 degree bends and two end fittings. Tubing runs withlarger number of bends and/or fittings shall be increased by an equivalent length oftubing according to the following equation: L = 1.3n, where L is additional length (ft) oftubing and n is the number of additional fittings and/or bends.
(4) All table entries are rounded to 3 significant digits.
EHD: Equivalent hydraulic diameter. A measure of the relative hydraulic efficiencybetween different tubing sizes. The greater the value of EHD, the greater the gascapacity of the tubing.
Notes:
(1) Table does not include effect of pressure drop across line regulator. Where regulatorloss exceeds 1 psi, do not use this table. Consult with regulator manufacturer forpressure drops and capacity factors. Pressure drop across regulator may vary with theflow rate.
(2) CAUTION: Capacities shown in table may exceed maximum capacity of selectedregulator. Consult with tubing manufacturer for guidance.
(3) Table includes losses for four 90 degree bends and two end fittings. Tubing runs withlarger numbers of bends and/or fittings shall be increased by an equivalent length oftubing to the following equation: L = 1.3n, where L is additional length (ft) of tubing and nis the number of additional fittings and/or bends.
(4) All table entries are rounded to 3 significant digits.
Table 6.2.1(t) Polyethylene Plastic Pipe
Gas: Natural
Inlet Pressure: Less than 2 psi
Pressure Drop: 0.3 in. w.c.
Specific Gravity: 0.60
Pipe Size (in.)
NominalOD: 1∕2 3∕4 1 11∕4 11∕2 2 3 4
Designation:SDR9.3
SDR11
SDR11
SDR10
SDR11
SDR11
SDR11
SDR11
Actual ID: 0.660 0.860 1.077 1.328 1.554 1.943 2.864 3.682
Note: All table entries are rounded to 3 significant digits.
6.2.2 Section 6.4 shall be used in conjunction with one of the methods described in 6.1.1through 6.1.3 for noncorrugated stainless steel tubing.
Supplemental Information
File Name DescriptionStaff_use_only_FR_18_6.2.docx
Submitter Information Verification
Submitter Full Name:Laura MontvilleOrganization: [ Not Specified ]Street Address:City:State:Zip:Submittal Date: Tue Sep 15 09:42:58 EDT 2015
Committee Statement
CommitteeStatement:
Recognize the use of stainless steel pipe and tubing products. We have becomeaware that stainless steel for fuel gas distribution in industrial or processing facilitiesis being specified. These facilities may have an environment where stainless steelwould be a more preferable material or the facility is being built with all stainlesssteel processing piping and the designer/owner wishes not to deviate from stainlesssteel for their fuel gas distribution system.
Pipe and Tubing Sizing: Note that Schedule 40 stainless steel pipe has the sameinternal diameter as the current schedule 40 metallic tables and therefore thesetables can be used. Stainless steel tubing products come in a variety of wallthickness and therefore the internal diameter will vary. Since is these products willbe used in specialized locations, their sizing would best be accomplished by use ofthe sizing equations and not generalized tubing tables.
ResponseMessage:
Public Input No. 131NFPA 542015 [Section No. 6.2]
Ballot Results
This item has passed ballot
26 Eligible Voters1 Not Returned23 Affirmative All2 Affirmative with Comments0 Negative with Comments0 Abstention
2/18/2016 National Fire Protection Association Report
First Revision No. 19NFPA 542015 [ Section No. 6.3 ]
6.3 Tables for Sizing Propane Gas Piping Systems Using Propane .Table 6.3(a) through Table 6.3(m) shall be used to size gas piping in conjunction withone of the methods described in 6.1.1 through 6.1.3 Sizing of piping systems shall bein accordance with 6.3.1 or 6.3.2 .
2/18/2016 National Fire Protection Association Report
Table 6.3.1(a)Table 6.3(a) through Table 6.3.1(m)Table 6.3(m) shall be used to size gaspiping in conjunction with one of the methods described in 6.1.1 through 6.1.3 for pipingmaterials other than noncorrugated stainless steel tubing.
EHD: Equivalent hydraulic diameter. A measure of the relative hydraulic efficiencybetween different tubing sizes. The greater the value of EHD, the greater the gascapacity of the tubing.
Notes:
(1) Table includes losses for four 90 degree bends and two end fittings. Tubing runs withlarger numbers of bends and/or fittings shall be increased by an equivalent length oftubing to the following equation: L = 1.3n, where L is additional length (ft) of tubing and nis the number of additional fittings and/or bends.
(2) All table entries are rounded to 3 significant digits.
EHD: Equivalent hydraulic diameter. A measure of the relative hydraulic efficiencybetween different tubing sizes. The greater the value of EHD, the greater the gascapacity of the tubing.
Notes:
(1) Table does not include effect of pressure drop across the line regulator. Whereregulator loss exceeds 1∕ psi (based on 13 in. w.c. outlet pressure), do not use this
2/18/2016 National Fire Protection Association Report
regulator loss exceeds 1∕2 psi (based on 13 in. w.c. outlet pressure), do not use thistable. Consult with regulator manufacturer for pressure drops and capacity factors.Pressure drops across a regulator may vary with flow rate.
(2) CAUTION: Capacities shown in table may exceed maximum capacity for a selectedregulator. Consult with regulator or tubing manufacturer for guidance.
(3) Table includes losses for four 90 degree bends and two end fittings. Tubing runs withlarger number of bends and/or fittings shall be increased by an equivalent length oftubing according to the following equation: L = 1.3n, where L is additional length (ft) oftubing and n is the number of additional fittings and/or bends.
(4) All table entries are rounded to 3 significant digits.
EHD: Equivalent hydraulic diameter. A measure of the relative hydraulic efficiencybetween different tubing sizes. The greater the value of EHD, the greater the gascapacity of the tubing.
Notes:
(1) Table does not include effect of pressure drop across the line regulator. Whereregulator loss exceeds 1∕2 psi (based on 13 in. w.c. outlet pressure), do not use thistable. Consult with regulator manufacturer for pressure drops and capacity factors.Pressure drops across a regulator may vary with flow rate.
2/18/2016 National Fire Protection Association Report
(2) CAUTION: Capacities shown in table may exceed maximum capacity for a selectedregulator. Consult with regulator or tubing manufacturer for guidance.
(3) Table includes losses for four 90 degree bends and two end fittings. Tubing runs withlarger number of bends and/or fittings shall be increased by an equivalent length oftubing according to the following equation: L = 1.3n, where L is additional length (ft) oftubing and n is the number of additional fittings and/or bends.
(4) All table entries are rounded to 3 significant digits.
Table 6.3.1(k) Polyethylene Plastic Pipe
Gas:UndilutedPropane
Inlet Pressure: 11.0 in. w.c.
Pressure Drop: 0.5 in. w.c.
SpecificGravity: 1.50
INTENDED USE: PE Pipe Sizing Between Integral SecondStage Regulator atTank or SecondStage (LowPressure) Regulator and Building.
Pipe Size (in.)Nominal
OD: 1∕2 3∕4 1 11∕4 11∕2 2 3 4
Designation:SDR9.3
SDR11
SDR11
SDR10
SDR11
SDR11 SDR 11 SDR 11
Actual ID: 0.660 0.860 1.077 1.328 1.554 1.943 2.864 3.682
Note: All table entries are rounded to 3 significant digits.
6.3.2 Section 6.4 shall be used in conjunction with one of the methods described in 6.1.1through 6.1.3 for noncorrugated stainless steel tubing.
Supplemental Information
File Name DescriptionStaff_use_only_FR_19_6.3.docx
Submitter Information Verification
Submitter Full Name:Laura MontvilleOrganization: [ Not Specified ]Street Address:City:State:Zip:Submittal Date: Tue Sep 15 09:46:12 EDT 2015
Committee Statement
CommitteeStatement:
Recognize the use of stainless steel pipe and tubing products. We have becomeaware that stainless steel for fuel gas distribution in industrial or processing facilitiesis being specified. These facilities may have an environment where stainless steelwould be a more preferable material or the facility is being built with all stainlesssteel processing piping and the designer/owner wishes not to deviate from stainlesssteel for their fuel gas distribution system.
Pipe and Tubing Sizing: Note that Schedule 40 stainless steel pipe has the sameinternal diameter as the current schedule 40 metallic tables and therefore thesetables can be used. Stainless steel tubing products come in a variety of wallthickness and therefore the internal diameter will vary. Since is these products willbe used in specialized locations, their sizing would best be accomplished by use ofthe sizing equations and not generalized tubing tables.
ResponseMessage:
Public Input No. 132NFPA 542015 [Section No. 6.3]
Ballot Results
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2/18/2016 National Fire Protection Association Report
First Revision No. 24NFPA 542015 [ Section No. 7.1.6.2 ]
7.1.6.2 Conduit with Both Ends Terminating Indoors.Where the conduit originates and terminates within the same building, the conduit shalloriginate and terminate in an accessible a portion of the building and where gas leakagefrom the conduit would be detected by the occupants. The conduit terminations shall notbe sealed.
Submitter Information Verification
Submitter Full Name:Laura MontvilleOrganization: [ Not Specified ]Street Address:City:State:Zip:Submittal Date: Tue Sep 15 11:51:50 EDT 2015
Committee Statement
CommitteeStatement:
Unlike section 7.1.6.1, this section involves open ended conduit terminations. Theoriginal intent of this section was to leave the terminations open so that any leakagewould be detected in the occupied space. Sealing the terminations would concealthe fact that the piping was leaking inside the conduit, perhaps resulting in a majorleak if the piping had failed and the conduit seal subsequently failed. Based on thedefinition of "accessible" in the code, the conduit terminations could be concealedbehind an access panel in a wall cavity, for example. An attic or crawl space wouldalso be accessible, but it was not the intent to terminate and open conduit in suchspaces. The revision captures the intent of this section as it was originally placed inthe code.
ResponseMessage:
Public Input No. 23NFPA 542015 [Section No. 7.1.6.2]
Ballot Results
This item has passed ballot
26 Eligible Voters1 Not Returned18 Affirmative All0 Affirmative with Comments7 Negative with Comments0 Abstention
2/18/2016 National Fire Protection Association Report
The revision would require a gas leak be detected by the occupants. The concern is that theterm “detectable” is undefined, could vary by person, and may require the installation of a fuelgas detector. The current code does specify the installation location for gas piping such thatleaks are detectable, assuming any leak within the building will be noticed.
Corcoran, Shannon M.
As proposed, the clause does not specify how a gas leak will be detected, such as requiringthe installation and use of a fuel gas detector; nor does it account an individual’s physicalinability to detect a gas leak.
Davis, Gerald G.
This revision assumes that all occupants will smell or detect odorant. In the spirit of safety, theconduit should be sealed with a fitting. this would trap the gas in the annulus of the conduit.
Deegan, Mike
The unanswered question is the occupants where the conduit terminates indoors would berequired to detect the smell of leaking gas. Every person's olfactory sensory ability of smell isdifferent. With this variance of smell it would require the additional installation of fuel gasdetector. With the additional instrumentation and a code requirement that the device to be hard
2/18/2016 National Fire Protection Association Report
wired could render the gas installation cost prohibitive.
Gorham, Mike
The text requiring termination in a portion of the building where gas will be detected is toosubjective the original text regarding location in an accessible area is better.
Lemoff, Theodore C.
This revision does not accomplish anything. It will require the conduit to originate and terminate“in a portion of the building and where gas leakage from the conduit would be detected by theoccupants” instead of in an “accessible portion of the building”. The term “accessible” is clearand well understood. The new text will require the installer to predict locations where futureoccupants will be so that they can smell any leaked gas. If a room is converted to a storageroom, how will the occupants smell the gas?
Papageorge, Andrea Lanier
The term "detectable" is not defined. What is detectable? What would be required? The currentlanguage of the code already allows for detection.
2/18/2016 National Fire Protection Association Report
First Revision No. 66NFPA 542015 [ Section No. 7.8 ]
7.8 Branch Pipe Connection.When a branch outlet is placed on a main supply line before it is known what size pipewill be connected to it, the outlet shall be of the same size as the line that supplies it.
Submitter Information Verification
Submitter Full Name:Laura MontvilleOrganization: [ Not Specified ]Street Address:City:State:Zip:Submittal Date: Tue Oct 13 19:41:54 EDT 2015
Committee Statement
CommitteeStatement:
Future changes to the piping system should not be anticipated. This is a designissue and not a safety requirement.
A short restriction does not make any difference in the flow capabilities of abranch connection.
The committee agrees with the substantiation for PI 27.ResponseMessage:
Public Input No. 27NFPA 542015 [Section No. 7.8]
Ballot Results
This item has passed ballot
26 Eligible Voters1 Not Returned23 Affirmative All2 Affirmative with Comments0 Negative with Comments0 Abstention
Not ReturnedFossa, Alberto Jose
2/18/2016 National Fire Protection Association Report
First Revision No. 67NFPA 542015 [ New Section after 7.9.1 ]
7.8.2 Point of Delivery Service Valve.Where the point of natural gas delivery is the outlet of the service meter assembly orthe outlet of the service regulator, a fullsize shutoff valve shall be installeddownstream from the point of delivery.
Submitter Information Verification
Submitter Full Name:Laura MontvilleOrganization: [ Not Specified ]Street Address:City:State:Zip:Submittal Date: Tue Oct 13 19:54:51 EDT 2015
Committee Statement
CommitteeStatement:
This valve provides the customer and contractor with a valve that is not regulatedby the Federal Department of Transportation, Division of Pipe Line Safety. Thisvalve would be a convenience valve. This would allow the utility to set the meter,turn on the gas but not enter it into the gas piping system. It would then allow thecontractor/installer to introduce the gas into the piping system and test the pipingsystem without waiting for the utility to return and turn on the gas.
ResponseMessage:
Public Input No. 80NFPA 542015 [New Section after 7.9.1]
Ballot Results
This item has passed ballot
26 Eligible Voters1 Not Returned18 Affirmative All0 Affirmative with Comments6 Negative with Comments1 Abstention
Not ReturnedFossa, Alberto Jose
2/18/2016 National Fire Protection Association Report
The revision would require the installation of a shut off valve after the point of delivery. Theproposal was submitted based on a convenience for the serving gas supplier and no safetyrelated evidence was presented to justify the additional valve. There is some concern thathaving an accessible valve with easy to shut off valve handle may be subject to moretampering. Also, the code would not require the valve terminable be capped for newconstruction where the building piping has not yet be pressure tested or where the applianceshave not yet been installed. This may lead to cases where the valve is mistakenly opened priorto complete installation. The new code text does not provide minimum location criteria and doesnot define what “full size” means (pipe diameter, flow, etc.). The current code does not prohibita gas supplier from installation a customer owned valve where the gas provider and builderhave arranged safeguards for such installations.
Davis, Gerald G.
Installing a hand shutoff at the outside meter location provides a easy access for vandalism. Ifthe shutoff was partially closed, appliances would be under gassed and potentially cause a COproblem.
Deegan, Mike
The addition of a shut off valve at the point of delivery is for the convenience of the gassupplier and does not promote any additional safety concept, as the valve on the riser or valveon the LP tank is the emergency valve. The placement of the additional valve could provide aneasier tampering mechanism, especially by individuals with varying negative motives. Thecurrent code does not prohibit a customer owned and maintained listed and approved valvefrom being installed, so why mandate such a requirement?
2/18/2016 National Fire Protection Association Report
There is no prohibition as to anyone installing this valve in the current code. Mandatinginstallation of this valve is unsupported by any adverse field safety experience. Installation ofthis valve may well create new problems in the field (unauthorized shutoff of gas).
Lemoff, Theodore C.
The new text does not appear to accomplish the intent of the submitter as stated in thesubstantiation. The new valve is required "downstream from the point of delivery" but it appearsthat it can be located anywhere as long as it is downstream of the point of delivery. The valvecould be located so that it would not shut off the entire system. An appliance shutoff valvewould comply with this proposed requirement.
Osterhaus, James T.
This requirement is unnecessary. There is nothing currently in the code that prevents a valvefrom being installed downstream from the point of delivery for customer or operatorconvenience.
AbstentionCorcoran, Shannon M.
The proposal was submitted based on a convenience for the serving gas supplier and nosafety related evidence was presented to justify the additional valve. There is some concernthat having an accessible valve with easy to shut off valve handle may be subject to moretampering. Also, the code would not require the valve terminable be capped for newconstruction where the building piping has not yet be pressure tested or where the applianceshave not yet been installed. This may lead to cases where the valve is mistakenly opened priorto complete installation. The new code text does not provide minimum location criteria and doesnot define what “full size” means (pipe diameter, flow, etc.). The current code does not prohibita gas supplier from installation a customer owned valve where the gas provider and builderhave arranged safeguards for such installations.
2/18/2016 National Fire Protection Association Report
First Revision No. 68NFPA 542015 [ Section No. 7.10 ]
7.9 Prohibited Devices.No device Devices shall not be placed inside within the interior of gas piping or fittingsthat where such devices reduces reduce the crosssectional area or otherwiseobstructs obstruct the free flow of gas, except where proper allowance in the pipingsystem design has been made for such devices a device and where approved by theauthority having jurisdiction .
Submitter Information Verification
Submitter Full Name:Laura MontvilleOrganization: [ Not Specified ]Street Address:City:State:Zip:Submittal Date: Tue Oct 13 20:01:03 EDT 2015
Committee Statement
CommitteeStatement:
The intent of the committee regarding restrictive devices has beenclarified.
Response Message:
Public Input No. 28NFPA 542015 [Section No. 7.10]
Ballot Results
This item has passed ballot
26 Eligible Voters1 Not Returned22 Affirmative All2 Affirmative with Comments1 Negative with Comments0 Abstention
Not ReturnedFossa, Alberto Jose
Affirmative AllAguilar, Hugo
2/18/2016 National Fire Protection Association Report
First Revision No. 8NFPA 542015 [ New Section after 7.13.2 ]
7.12.3 ArcResistant Jacketed CSST.CSST listed with an arcresistant jacket or coating system in accordance with ANSILC 1/CSA 6.26, Fuel Gas Piping Systems Using Corrugated Stainless Steel Tubing(CSST) , shall be electrically continuous and bonded to an effective ground faultcurrent path. Where any CSST component of a piping system does not have an arcresistant jacket or coating system, the bonding requirements of 7.12.2 shall apply.Arcresistant jacketed CSST shall be considered to be bonded when it is connected toappliances that are connected to the appliance grounding conductor of the circuitsupplying that appliance.
Submitter Information Verification
Submitter Full Name:Laura MontvilleOrganization: [ Not Specified ]Street Address:City:State:Zip:Submittal Date: Mon Sep 14 13:53:55 EDT 2015
Committee Statement
CommitteeStatement:
The use of a CSST product with a protective, lightning resistant jacket is anequivalent method of protection against electrical arcing damage caused by highvoltage transient events such as lightning strikes. An arc resistant jacket does notrely on direct bonding to the grounding electrode system to reduce or eliminatedamage from electrical arcing. Instead, the protective jacket is designed to locallyabsorb and dissipate the arcing energy over a short length of the jacket. The jacket,in essence, disrupts the focus of the arc and reduces the energy level below thethreshold value that can cause a perforation of the tubing wall. This dynamic actionis equally effective compared to the current CSST bonding method regardless of thebonding conductor size or length. The protection against arcing is provided uniformlythroughout the piping system, and is not affected by close proximity to other metallicsystems that may not be similarly bonded.
ResponseMessage:
Public Input No. 100NFPA 542015 [New Section after 7.13.2.5]
Ballot Results
This item has passed ballot
26 Eligible Voters1 Not Returned
2/18/2016 National Fire Protection Association Report
First Revision No. 10NFPA 542015 [ Section No. 7.13.2 [Excluding any
SubSections] ]
CSST gas piping systems, and gas piping systems containing one or more segments ofCSST, shall be electrically continuous and bonded to the electrical service groundingelectrode system or, where provided, lightning protection grounding electrode system.
Submitter Information Verification
Submitter Full Name:Laura MontvilleOrganization: [ Not Specified ]Street Address:City:State:Zip:Submittal Date: Mon Sep 14 15:32:55 EDT 2015
Committee Statement
CommitteeStatement:
Revised to add “electrically continuous” to match 7.13.1. It appears that thosewords were not included in the section when the bonding requirements were splitbetween CSST and nonCSST systems.
ResponseMessage:
Public Input No. 121NFPA 542015 [Section No. 7.13.2 [Excluding any SubSections]]
Ballot Results
This item has passed ballot
26 Eligible Voters1 Not Returned22 Affirmative All2 Affirmative with Comments0 Negative with Comments1 Abstention
Not ReturnedFossa, Alberto Jose
Affirmative AllAguilar, Hugo
2/18/2016 National Fire Protection Association Report
First Revision No. 11NFPA 542015 [ Section No. 7.13.2.3 ]
7.12.2.3* The length of the jumper between the connection to the gas piping system and thegrounding electrode system shall not exceed 75 ft (22 m). Any additional groundingelectrodes installed to meet this requirement shall be bonded to the electrical servicegrounding electrode system or, where provided, lightning protection grounding electrodesystem.
Supplemental Information
File Name DescriptionFR_11_A.7.13.2.3.docx New annex material
Submitter Information Verification
Submitter Full Name:Laura MontvilleOrganization: [ Not Specified ]Street Address:City:State:Zip:Submittal Date: Mon Sep 14 16:08:02 EDT 2015
Committee Statement
CommitteeStatement:
In some cases, the length limit of 75 feet cannot be achieved because of thelocation of gas meter banks and the electrical service. The same is true of largerhomes and some commercial buildings. The current last sentence of this codesection was placed in the code to recognize the possibility that additional electrodescould be installed, however, it fails to state why such additional electrodes areinstalled, or why they might be necessary. The revision completes the originalthought behind the current last sentence by introducing the condition where anadditional electrode would be necessary. Installing an additional grounding electrodeis preferable to installing a jumper that exceeds 75 feet in length, provided that theadditional electrode is bonded to the electrical service electrodes. The current codedoes not openly endorse the additional electrode option, rather it simply implies thatthe option exists. The revised text makes it clear that the length of the jumper to theadditional electrode is 75 feet, but the jumper to bond the additional electrode to theelectrical service electrodes is unlimited in length. In cases where the additionalelectrode could be very close the gas piping system, the proposed option wouldresult in a better earth bond than a 75 foot long jumper connected only to theelectrical service electrodes.
ResponseMessage:
Public Input No. 19NFPA 542015 [Section No. 7.13.2.3]
2/18/2016 National Fire Protection Association Report
First Revision No. 71NFPA 542015 [ Section No. 8.1.2 ]
8.1.2 Test Medium.The test medium shall be air, nitrogen, carbon dioxide, or an inert gas. Oxygen shall notbe used as a test medium.OXYGEN SHALL NEVER BE USED.
Submitter Information Verification
Submitter Full Name:Laura MontvilleOrganization: [ Not Specified ]Street Address:City:State:Zip:Submittal Date: Wed Oct 14 17:18:49 EDT 2015
Committee Statement
CommitteeStatement:
The format of this section is that of a warning label typically seen in productmanufacturer's instructions. It is not proper code format and there are manystatements in the code that are just as important as this one, yet they are not shownin warning sign format. Stating in law that something shall not be done is preferableto stating that it shall NEVER be done.
ResponseMessage:
Public Input No. 29NFPA 542015 [Section No. 8.1.2]
Ballot Results
This item has passed ballot
26 Eligible Voters1 Not Returned22 Affirmative All2 Affirmative with Comments1 Negative with Comments0 Abstention
Not ReturnedFossa, Alberto Jose
2/18/2016 National Fire Protection Association Report
The warning not to use oxygen is very important and its placement is appropriate and is notprohibited by the NFPA Manual of Style. This warning is more important than others as a gasoxygen mixture in the pipe can cause the pipe to explode!
2/18/2016 National Fire Protection Association Report
First Revision No. 58NFPA 542015 [ Section No. 9.1.24 ]
9.1.24* Existing Appliances.Existing appliance installations shall be inspected to verify compliance with theprovisions of Section 9.3 and Chapter 12 where a component of the building envelopeis modified as described by one or more of 9.1.24(1) through 9.1.24(6) . Where theappliance installation does not comply with Section 9.3 and Chapter 12 , theinstallation shall be altered as necessary to be in compliance with Section 9.3 andChapter 12 . The installer responsible for making the envelope component change shallbe responsible for compliance with this section.
(1) The building is modified under a weatherization program.
(2) A building permit is issued for a building addition or exterior building modification.
(3) Three or more window assemblies are replaced.
(4) Three or more storm windows are installed over existing windows.
(5) One or more exterior door and frame assemblies are replaced.
(6) A building air barrier is installed or replaced.
Submitter Information Verification
Submitter Full Name:Laura MontvilleOrganization: [ Not Specified ]Street Address:City:State:Zip:Submittal Date: Mon Sep 28 12:21:07 EDT 2015
Committee Statement
CommitteeStatement:
The new requirements address the inspection of existing appliances installationsthat may be impacted by building envelope modifications. The revisions wouldprovide a list of specific activities which have the greatest potential for reducinginfiltration.
The committee believes that responsibility for conducting the inspection needed tobe specified.
ResponseMessage:
Public Input No. 122NFPA 542015 [New Section after 9.1.23]
Public Input No. 123NFPA 542015 [Section No. 9.1.24]
Ballot Results
2/18/2016 National Fire Protection Association Report
1. While this revision is vastly improved from the one that was proposed for the current edition,it is flawed by assigning responsibility. I would be in favor of a revised addition that did notassign responsibility. 2. It is not clear how this requirement can be enforced, as buildingenvelope changes are outside of the scope of the Code.
2/18/2016 National Fire Protection Association Report
First Revision No. 73NFPA 542015 [ Section No. 9.3.2.3 ]
9.3.2.3 Indoor Opening Size and Location.Openings used to connect indoor spaces shall be sized and located in accordance withthe following:
(1)
(2) Combining spaces in different stories. The volumes of spaces in different storiesshall be considered as communicating spaces where such spaces are connectedby one or more permanent openings in doors or floors having a total minimum freearea of 2 in.2/1000 Btu/hr (4400 mm2/kW) of total input rating of all appliances.
Submitter Information Verification
Submitter Full Name:Laura MontvilleOrganization: [ Not Specified ]Street Address:City:State:Zip:Submittal Date: Wed Oct 14 18:55:47 EDT 2015
Committee Statement
CommitteeStatement:
Indoor openings that combine space volumes should always be of a permanentnature. The committee believes that combining spaces on the same story and ondifferent stories are permitted simultaneously.
ResponseMessage:
Public Input No. 128NFPA 542015 [Section No. 9.3.2.3]
Ballot Results
This item has passed ballot
26 Eligible Voters1 Not Returned23 Affirmative All2 Affirmative with Comments
* Combining spaces on the same story. Each opening shall have a minimum freearea of 1 in.2/1000 Btu/hr (2200 mm2/kW) of the total input rating of all appliancesin the space but not less than 100 in.2 (0.06 m2). One permanent opening shallcommence within 12 in. (300 mm) of the top of the enclosure and one permanentopening shall commence within 12 in. (300 mm) of the bottom of the enclosure.The minimum dimension of air openings shall not be less than 3 in. (80 mm).
2/18/2016 National Fire Protection Association Report
First Revision No. 55NFPA 542015 [ Section No. 9.6.1 [Excluding any
SubSections] ]
Appliances and equipment shall be connected to the building piping in compliance with9.6.5 through 9.6.7 by one of the following:
(1) Rigid metallic pipe and fittings.
(2) Semirigid metallic tubing and metallic fittings. Aluminum alloy tubing shall not beused in exterior locations.
(3) A listed connector in compliance with ANSI Z21.24/CSA 6.10, Connectors for GasAppliances. The connector shall be used in accordance with the manufacturer'sinstallation instructions and shall be in the same room as the appliance. Only oneconnector shall be used per appliance.
(4) A listed connector in compliance with ANSI Z21.75/CSA 6.27, Connectors forOutdoor Gas Appliances and Manufactured Homes. Only one connector shall beused per appliance.
(5) CSST where installed in accordance with the manufacturer’s installationinstructions. CSST shall connect only to appliances that are fixed in place.
(6) Listed nonmetallic gas hose connectors in accordance with 9.6.2.
(7) Unlisted gas hose connectors for use in laboratories and educational facilities inaccordance with 9.6.3.
Submitter Information Verification
Submitter Full Name:Laura MontvilleOrganization: [ Not Specified ]Street Address:City:State:Zip:Submittal Date: Wed Sep 16 16:30:22 EDT 2015
Committee Statement
CommitteeStatement:
This requirement is added to correlate with CSST manufacturers'instructions.
Response Message:
Ballot Results
This item has passed ballot
26 Eligible Voters1 Not Returned
2/18/2016 National Fire Protection Association Report
First Revision No. 99NFPA 542016 [ Section No. 9.6.1.5 [Excluding any
SubSections] ]
Suspended lowintensity infrared tube heaters shall be connected to the building pipingsystem with a connector listed for the application in accordance with ANSIZ21.24/CGA CSA 6.10, Connectors for Gas Appliances.
Submitter Information Verification
Submitter Full Name:Laura MontvilleOrganization: National Fire Protection AssocStreet Address:City:State:Zip:Submittal Date: Thu Jan 07 16:04:46 EST 2016
Committee Statement
Committee Statement: This revision fixes an incorrect reference.Response Message:
Ballot Results
This item has passed ballot
26 Eligible Voters1 Not Returned23 Affirmative All2 Affirmative with Comments0 Negative with Comments0 Abstention
Not ReturnedFossa, Alberto Jose
Affirmative AllAguilar, Hugo
Antonov, Dmitry
Berning, David
Brania, Jonathan
2/18/2016 National Fire Protection Association Report
First Revision No. 43NFPA 542015 [ Section No. 9.6.5.1 ]
9.6.5.1 The shutoff valve shall be located within 6 ft (1.8 m) of the appliance it serves except aspermitted in 9.6.5.2 or 9.6.5.3.
(A) Where a connector is used, the valve shall be installed upstream of the connector. Aunion or flanged connection shall be provided downstream from the valve to permitremoval of appliance controls.
(B) Shutoff valves serving decorative appliances in a fireplace shall be permitted to beinstalled in fireplaces if not be located within the fireplace firebox except where the valveis listed for such use.
Submitter Information Verification
Submitter Full Name:Laura MontvilleOrganization: [ Not Specified ]Street Address:City:State:Zip:Submittal Date: Wed Sep 16 11:22:14 EDT 2015
Committee Statement
CommitteeStatement:
Item (B) was editorially reworded for clarity. No substantive change hasbeen made.
ResponseMessage:
Public Input No. 33NFPA 542015 [Section No. 9.6.5.1]
Ballot Results
This item has passed ballot
26 Eligible Voters1 Not Returned23 Affirmative All2 Affirmative with Comments0 Negative with Comments0 Abstention
2/18/2016 National Fire Protection Association Report
First Revision No. 44NFPA 542015 [ Section No. 9.6.5.3 ]
9.6.5.3 Where installed at a manifold, the appliance shutoff valve shall be located within 50 ft(15 m) of the appliance served and shall be readily accessible and permanentlyidentified. The piping from the manifold to within 6 ft (1.8 m) of the appliance shall bedesigned, sized, installed, and tested in accordance with Chapters 5, 6, 7, and 8. Thelocation of shutoff valves for appliances installed in attics, crawl spaces, or on roofsshall be within 6 ft (1.8 m) of the appliance.
Submitter Information Verification
Submitter Full Name:Laura MontvilleOrganization: [ Not Specified ]Street Address:City:State:Zip:Submittal Date: Wed Sep 16 11:27:30 EDT 2015
Committee Statement
CommitteeStatement:
The allowance in 9.6.5.3 is not appropriate for appliances located in attics, crawlspaces and on roofs. The shutoff valve within 6 feet of the appliance is required tofacilitate servicing and repair of the appliance. It is burdensome to require servicepersonnel to get down off a roof or crawl through an attic or crawl space, perhapsrepeatedly, to access the shutoff valve that is located on a manifold in a basement,garage or mechanical room.
Ballot Results
This item has passed ballot
26 Eligible Voters1 Not Returned23 Affirmative All2 Affirmative with Comments0 Negative with Comments0 Abstention
Not ReturnedFossa, Alberto Jose
2/18/2016 National Fire Protection Association Report
First Revision No. 74NFPA 542015 [ Section No. 9.6.8 ]
9.6.8 Sediment Trap.Where a sediment trap is not incorporated as a part of the appliance, a sediment trapshall be installed downstream of the appliance shutoff valve as close to the inlet of theappliance as practical at the time of appliance installation. The sediment trap shall beeither a tee fitting with a capped nipple in the bottom outlet, as illustrated in Figure9.6.8, or another device recognized as an effective sediment trap. Illuminatingappliances, gas ranges, clothes dryers, decorative appliances for installation in ventedfireplaces, gas fireplaces, and outdoor cooking appliances shall not be required to be soequipped.
Figure 9.6.8 Method of Installing a Tee Fitting Sediment Trap.
Submitter Information Verification
Submitter Full Name:Laura MontvilleOrganization: [ Not Specified ]Street Address:City:State:
DELETED
2/18/2016 National Fire Protection Association Report
First Revision No. 48NFPA 542015 [ Section No. 10.4.4.3 ]
10.4.4.3 Exhaust ducts shall be constructed of rigid metallic material. Transition ducts used toconnect the dryer to the exhaust duct shall be listed and labeled in accordance withANSI/UL 2158A, Clothes Dryer Transition Ducts , for that application or installed inaccordance with the clothes dryer manufacturer’s installation instructions.
Submitter Information Verification
Submitter Full Name:Laura MontvilleOrganization: [ Not Specified ]Street Address:City:State:Zip:Submittal Date: Wed Sep 16 14:29:52 EDT 2015
Committee Statement
CommitteeStatement:
UL 2158A is the criteria used for listing and labeling of clothes dryer transition ductsintended for venting the exhaust air of electric and gas clothes dryers of householdor commercial type.
ResponseMessage:
Public Input No. 160NFPA 542015 [Section No. 10.4.4.3]
Ballot Results
This item has passed ballot
26 Eligible Voters1 Not Returned22 Affirmative All2 Affirmative with Comments1 Negative with Comments0 Abstention
Not ReturnedFossa, Alberto Jose
Affirmative All
2/18/2016 National Fire Protection Association Report
First Revision No. 75NFPA 542015 [ Section No. 10.8.3.2 ]
10.8.3.2 Nonrecirculating direct gasfired industrial air heaters shall be installed only in industrialor commercial occupancies.
Submitter Information Verification
Submitter Full Name:Laura MontvilleOrganization: [ Not Specified ]Street Address:City:State:Zip:Submittal Date: Wed Oct 14 20:05:54 EDT 2015
Committee Statement
CommitteeStatement:
The intent of the committee is covered in 10.8.2.1 and industrial and commercialoccupancies are not defined. The intended installation is expressed by themanufacturers.
ResponseMessage:
Ballot Results
This item has passed ballot
26 Eligible Voters1 Not Returned22 Affirmative All2 Affirmative with Comments1 Negative with Comments0 Abstention
Not ReturnedFossa, Alberto Jose
Affirmative AllAguilar, Hugo
Antonov, Dmitry
2/18/2016 National Fire Protection Association Report
The committee statement does not provide a technical reason for the proposed deletion. Theproposal deletes a requirement that nonrecirculating gasfired industrial air heaters be installedonly in commercial or industrial occupancies with the reason that 10.8.2.1 is a prohibition ofthese heaters serving sleeping areas. The fact that commercial and industrial occupancies arenot defined is not sufficient reason to delete them. Appropriate terms could be substituted.
2/18/2016 National Fire Protection Association Report
First Revision No. 76NFPA 542015 [ Section No. 10.9.3 ]
10.9.3 Installation.Installation of direct gasfired industrial air heaters shall comply with the followingrequirements: Recirculating direct gas–fired industrial air heaters shall be installed inaccordance with the manufacturer’s instructions.
Recirculating direct gasfired industrial air heaters shall be installed in accordancewith the manufacturer’s instructions.
Recirculating direct gasfired industrial air heaters shall be installed only inindustrial or commercial occupancies.
Submitter Information Verification
Submitter Full Name:Laura MontvilleOrganization: [ Not Specified ]Street Address:City:State:Zip:Submittal Date: Wed Oct 14 20:10:18 EDT 2015
Committee Statement
CommitteeStatement:
The intent of the committee is covered in 10.9.2.1 and industrial and commercialoccupancies are not defined. The intended installation is expressed by themanufacturers.
ResponseMessage:
Public Input No. 36NFPA 542015 [Section No. 10.9.3]
Ballot Results
This item has passed ballot
26 Eligible Voters1 Not Returned22 Affirmative All2 Affirmative with Comments1 Negative with Comments0 Abstention
Not Returned
2/18/2016 National Fire Protection Association Report
First Revision No. 49NFPA 542015 [ New Section after 10.22.1 ]
10.22.1.1 Installation in Fireplaces.Unvented room heaters shall not be installed in factorybuilt fireplaces except where thefactorybuilt fireplace is listed for use with unvented room heaters.
Submitter Information Verification
Submitter Full Name:Laura MontvilleOrganization: [ Not Specified ]Street Address:City:State:Zip:Submittal Date: Wed Sep 16 15:02:39 EDT 2015
Committee Statement
CommitteeStatement:
The ANSI Z21.11.2 standard for unvented room heaters prohibits the installation ofsuch heaters in factorybuilt fireplaces, IF the fireplace instructions state thisprohibition. If the fireplace instructions are silent, this can be interpreted as approvalto install the room heater in the fireplace, simply because the fireplace instructionsdid not expressly prohibit the installation. This is stated backwards. It should saythat unvented room heaters are prohibited in factorybuilt fireplaces except where thefireplace instructions state that it is allowed. There are existing fireplaces that wereinstalled before UL 127 started testing fireplaces for use with the damper closed.Those older fireplace instructions will not state that unvented heaters are notallowed in them because they predate the UL 127 testing for such use. Therefore,silence in the fireplace instructions can be misconstrued to mean that the installationof an appliance in the fireplace is allowed even though the fireplace was nevertested for such use.
ResponseMessage:
Public Input No. 38NFPA 542015 [New Section after 10.22.1]
Ballot Results
This item has passed ballot
26 Eligible Voters1 Not Returned21 Affirmative All2 Affirmative with Comments2 Negative with Comments0 Abstention
2/18/2016 National Fire Protection Association Report
An unvented heater as defined in ANSI Z21.11.2 2013, is “an unvented, selfcontained, gasburning appliance for connection to the house fuel supply system and for furnishing heat to thespace in which installed directly from the room heater without duct connection. These heatersmay be: (a) freestanding; (b) wall mounted (for insertion in or attachment to a wall, partition or
2/18/2016 National Fire Protection Association Report
enclosure); or (c) for installation in a solidfuel burning masonry or UL 127 factorybuilt fireplaceor in a listed ventless firebox enclosure. These heaters may be further classified as: (i)Unvented gas log – an open flame type appliance consisting of a metal frame or basesupporting simulated logs or coals; or (ii) Unvented fireplace insert – an unvented room heater(other than an unvented gas log) designed to be fully or partially installed in a solidfuel burningmasonry or UL 127 factorybuilt fireplace or in a listed ventless firebox enclosure.” Thecommittee statement erroneously states that the standard prohibits the installation of suchheaters in factorybuilt fireplaces. There are current products certified to ANSI Z21.11.2 that aredesigned to be installed in UL 127 factorybuilt fireplaces. The ANSI Z21.11.2 standard allowsinstallation into UL 127 fireplaces, unless their certification disallows it.
Osterhaus, James T.
Based on Shannon Corcoran's comments in the initial ballot that ANSI Z21.11.2 allowsinstallation into UL 127 fireplaces, unless their certification disallows it.
2/18/2016 National Fire Protection Association Report
First Revision No. 56NFPA 542015 [ Section No. 10.25.2.2 ]
10.25.2.2 FloorMountedType Unit Heaters.Floormountedtype unit heaters shall meet the following requirements:
A listed unit heater shall be installed with clearances from combustible materialat the back and one side only of not less than 6 in. (150 mm). Where the fluegases are vented horizontally, the 6 in. (150 mm) clearance shall be measuredfrom the draft hood or vent instead of the rear wall of the unit heater. A unitheater listed for reduced clearances shall be installed in accordance with themanufacturer’s installation instructions.
Floormountedtype unit heaters installed on combustible floors shall be listed forsuch installation.
Combustible floors under unlisted floormounted unit heaters shall be protected inan approved manner.
Clearances for servicing shall be in accordance with the manufacturers’recommendations contained in the installation instructions.
Submitter Information Verification
Submitter Full Name:Laura MontvilleOrganization: [ Not Specified ]Street Address:City:State:Zip:Submittal Date: Wed Sep 16 16:46:48 EDT 2015
Committee Statement
CommitteeStatement:
This section is being deleted because floor mounted unit heaters are no longermanufactured, to the committee's knowledge.
ResponseMessage:
Ballot Results
This item has passed ballot
26 Eligible Voters1 Not Returned22 Affirmative All2 Affirmative with Comments
2/18/2016 National Fire Protection Association Report
First Revision No. 51NFPA 542015 [ New Section after 10.27.1 ]
10.27.1.1 Locations with Airhandlers.Where a draft hood–equipped water heater is installed in a space containing a furnaceor other air handler, the ducts serving the furnace or air handler shall comply with10.3.7.4 .
Submitter Information Verification
Submitter Full Name:Laura MontvilleOrganization: [ Not Specified ]Street Address:City:State:Zip:Submittal Date: Wed Sep 16 15:50:28 EDT 2015
Committee Statement
CommitteeStatement:
Section 10.3.7.4 is an important safety measure for gasfired furnaces, but no suchtext in the code applies to gas water heaters and gas boilers. Gas water heaters areoften put in closets with a heat pump or other type of HVAC airhandler. If the airhandler is not ducted out of the closet and pulls air through the closet from alouvered door or grille, strong negative pressure can occur in the closet. Thispressure will easily over come the natural draft of a water heater.
ResponseMessage:
Public Input No. 42NFPA 542015 [New Section after 10.27.1]
Ballot Results
This item has passed ballot
26 Eligible Voters1 Not Returned23 Affirmative All2 Affirmative with Comments0 Negative with Comments0 Abstention
Not ReturnedFossa, Alberto Jose
2/18/2016 National Fire Protection Association Report
First Revision No. 52NFPA 542015 [ Section No. 10.28 ]
10.28 Compressed Natural Gas (CNG) Vehicular Fuel Systems.The installation of compressed natural gas (CNG) fueling (dispensing) systems shallconform to NFPA 52, Vehicular Gaseous Fuel Systems Code . Residential CNGfueling appliances shall be listed in accordance with ANSI/CSA NGV 5.1, ResidentialFueling Appliances , and installed in accordance to the appliance manufacturer'sinstallation instructions.
Submitter Information Verification
Submitter Full Name:Laura MontvilleOrganization: [ Not Specified ]Street Address:City:State:Zip:Submittal Date: Wed Sep 16 15:55:26 EDT 2015
Committee Statement
CommitteeStatement:
Revised to add a reference to the newly approved residential CNG fueling standardand require that such appliances be installed in accordance with the manufacturer’sinstallation instructions. The code will now require them to be listed to an ANSIstandard.
ResponseMessage:
Public Input No. 129NFPA 542015 [Section No. 10.28]
Ballot Results
This item has passed ballot
26 Eligible Voters1 Not Returned23 Affirmative All2 Affirmative with Comments0 Negative with Comments0 Abstention
Not ReturnedFossa, Alberto Jose
2/18/2016 National Fire Protection Association Report
First Revision No. 77NFPA 542015 [ Section No. 12.3.2 [Excluding any
SubSections] ]
The following appliances shall not be required to be vented:
(1) Listed ranges
(2) Builtin domestic cooking units listed and marked for optional venting
(3) Listed hot plates and listed laundry stoves
(4) Listed Type 1 clothes dryers exhausted in accordance with Section 10.4
(5) A single listed boostertype (automatic instantaneous) water heater, when designedand used solely for the sanitizing rinse requirements of a dishwashing machine,provided that the appliance is installed with the draft hood in place and unaltered, ifa draft hood is required, in a commercial kitchen having a mechanical exhaustsystem [Where installed in this manner, the draft hood outlet shall not be less than36 in. (910 mm) vertically and 6 in. (150 mm) horizontally from any surface otherthan the appliance.]
(6) Listed refrigerators
(7) Counter appliances
(8) Room heaters listed for unvented use
(9) Direct gas–fired makeup air heaters
(10) Other appliances listed for unvented use and not provided with flue collars
(11) Specialized appliances of limited input such as laboratory burners or gas lights
Submitter Information Verification
Submitter Full Name:Laura MontvilleOrganization: [ Not Specified ]Street Address:City:State:Zip:Submittal Date: Thu Oct 15 09:38:43 PDT 2015
Committee Statement
CommitteeStatement:
To the committee's knowledge, these appliances are no longer beingmanufactured.
ResponseMessage:
Ballot Results
This item has passed ballot
2/18/2016 National Fire Protection Association Report
First Revision No. 26NFPA 542015 [ Section No. 12.3.3 ]
12.3.3* Ventilating Hoods.Ventilating The use of ventilating hoods and exhaust systems to vent appliances shallbe permitted to be used to vent appliances limited to industrial appliances andappliances installed in commercial applications and to vent industrial appliances,particularly where the process itself requires fume disposal .
Submitter Information Verification
Submitter Full Name:Laura MontvilleOrganization: [ Not Specified ]Street Address:City:State:Zip:Submittal Date: Tue Sep 15 13:19:09 EDT 2015
Committee Statement
Committee Statement: The requirement is being editorially revised for clarity.Response Message:
Public Input No. 40NFPA 542015 [Section No. 12.3.3]
Ballot Results
This item has passed ballot
26 Eligible Voters1 Not Returned23 Affirmative All2 Affirmative with Comments0 Negative with Comments0 Abstention
Not ReturnedFossa, Alberto Jose
Affirmative AllAguilar, Hugo
Antonov, Dmitry
2/18/2016 National Fire Protection Association Report
First Revision No. 27NFPA 542015 [ Section No. 12.3.4 ]
12.3.4 WellVentilated Spaces.
The operation of flue gases from industrialtype appliances such that its flue shall not berequired to be vented to the outdoors where such gases are discharged directly into alarge and wellventilated industrial space shall be permitted .
Submitter Information Verification
Submitter Full Name:Laura MontvilleOrganization: [ Not Specified ]Street Address:City:State:Zip:Submittal Date: Tue Sep 15 13:24:42 EDT 2015
Committee Statement
CommitteeStatement:
Previous edition text does not prevent the flue gases from being dumped into asmall poorly ventilated space. The intent is that flue gases can be dumped indoorsinstead of being vented to the outdoors, only in the case where the space is largeand wellventilated.
ResponseMessage:
Public Input No. 39NFPA 542015 [Section No. 12.3.4]
Ballot Results
This item has passed ballot
26 Eligible Voters1 Not Returned21 Affirmative All3 Affirmative with Comments1 Negative with Comments0 Abstention
Not ReturnedFossa, Alberto Jose
Affirmative All
2/18/2016 National Fire Protection Association Report
I agree with the intent, but the lack of definition of what a "large" or "industrial space" isbecomes problematic, making enforcement extremely difficult at best.
Negative with CommentMortimer, Frank J.
Prefer current wording
2/18/2016 National Fire Protection Association Report
First Revision No. 28NFPA 542015 [ Section No. 12.4.3.1 ]
12.4.3.1 Mechanical draft systems shall be listed in accordance with UL 378, Draft Equipment ,and installed in accordance with both the appliance and the mechanical draft systemmanufacturer's installation instructions.
Submitter Information Verification
Submitter Full Name:Laura MontvilleOrganization: [ Not Specified ]Street Address:City:State:Zip:Submittal Date: Tue Sep 15 13:30:04 EDT 2015
Committee Statement
CommitteeStatement:
UL 378 is the standard for listing draft regulators (automatic dampers), automaticdamper controls, draft fans, and similar equipment, intended to assist in maintainingthe desired combustion chamber draft in heating equipment.
ResponseMessage:
Public Input No. 96NFPA 542015 [Section No. 12.4.3.1]
Ballot Results
This item has passed ballot
26 Eligible Voters1 Not Returned23 Affirmative All2 Affirmative with Comments0 Negative with Comments0 Abstention
Not ReturnedFossa, Alberto Jose
Affirmative AllAguilar, Hugo
2/18/2016 National Fire Protection Association Report
First Revision No. 31NFPA 542015 [ Section No. 12.6.1.1 ]
12.6.1.1 Factorybuilt chimneys shall be listed in accordance with ANSI/UL 103, Chimneys,FactoryBuilt, Residential Type and Building Heating Appliances; ANSI/UL 959, MediumHeat Appliance FactoryBuilt Chimneys ; or ANSI/UL 2561, 1400 Degree FahrenheitFactoryBuilt Chimneys . Factorybuilt chimneys shall be installed in accordance withthe manufacturer's installation instructions. Factorybuilt chimneys used to ventappliances that operate at positive vent pressure shall be listed for such application.
Submitter Information Verification
Submitter Full Name:Laura MontvilleOrganization: [ Not Specified ]Street Address:City:State:Zip:Submittal Date: Tue Sep 15 14:19:51 EDT 2015
Committee Statement
CommitteeStatement:
ANSI/UL 103 is the standard for residentialtype and buildingheatingappliancechimneys intended for venting flue gases at a temperature not exceeding 1000°F(540°C), under continuous operating conditions. ANSI/UL 959 is the standard formediumheatappliance chimneys intended for venting flue gases at a temperaturenot exceeding 1800°F, under continuous operating conditions. ANSI/UL 2561 is thestandard for factorybuilt 1400°F chimneys intended for venting flue gases at atemperature not exceeding 1400°F under continuous operating conditions.
ResponseMessage:
Public Input No. 83NFPA 542015 [Section No. 12.6.1.1]
Ballot Results
This item has passed ballot
26 Eligible Voters1 Not Returned22 Affirmative All2 Affirmative with Comments1 Negative with Comments0 Abstention
2/18/2016 National Fire Protection Association Report
First Revision No. 33NFPA 542015 [ Section No. 12.6.4.3 ]
12.6.4.3 Cleanouts shall be examined to determine that they and where they do not remaintightly closed when not in use, they shall be repaired or replaced .
Submitter Information Verification
Submitter Full Name:Laura MontvilleOrganization: [ Not Specified ]Street Address:City:State:Zip:Submittal Date: Tue Sep 15 15:09:52 EDT 2015
Committee Statement
CommitteeStatement:
The current text requires nothing except an exam and a determination. Nothing isrequired if the cleanout does not remain tightly closed.
ResponseMessage:
Public Input No. 41NFPA 542015 [Section No. 12.6.4.3]
Ballot Results
This item has passed ballot
26 Eligible Voters1 Not Returned23 Affirmative All2 Affirmative with Comments0 Negative with Comments0 Abstention
Not ReturnedFossa, Alberto Jose
Affirmative AllAguilar, Hugo
Antonov, Dmitry
2/18/2016 National Fire Protection Association Report
First Revision No. 34NFPA 542015 [ Section No. 12.6.5.4 ]
12.6.5.4 A single chimney flue serving a listed combination gas and oilburning appliance shallbe sized to properly vent in accordance with the appliance manufacturer's instructions .
Submitter Information Verification
Submitter Full Name:Laura MontvilleOrganization: [ Not Specified ]Street Address:City:State:Zip:Submittal Date: Tue Sep 15 15:34:00 EDT 2015
Committee Statement
CommitteeStatement:
The current text is nothing more than a statement of the obvious. It provides noguidance. If there is such an appliance on the market, it will dictate the sizing of theventing system. Referencing the manufacturer's instructions is certainly moreinformative than the current text.
ResponseMessage:
Public Input No. 49NFPA 542015 [Section No. 12.6.5.4]
Ballot Results
This item has passed ballot
26 Eligible Voters1 Not Returned23 Affirmative All2 Affirmative with Comments0 Negative with Comments0 Abstention
Not ReturnedFossa, Alberto Jose
Affirmative AllAguilar, Hugo
2/18/2016 National Fire Protection Association Report
First Revision No. 32NFPA 542015 [ New Section after 12.6.8 ]
12.6.9 Insulation Shield.Where a factorybuilt chimney passes through insulated assemblies, an insulationshield constructed of steel having a minimum thickness of 0.0187 in. (0.4712 mm)(nominal 26 gage) shall be installed to provide clearance between the chimney and theinsulation material. The clearance shall not be less than the clearance to combustiblesspecified by the chimney manufacturer's installation instructions. Where chimneyspass through attic space, the shield shall terminate not less than 2 in. (51 mm) abovethe insulation materials and shall be secured in place to prevent displacement.Insulation shields provided as part of a listed chimney system shall be installed inaccordance with the manufacturer's installation instructions.
Submitter Information Verification
Submitter Full Name:Laura MontvilleOrganization: [ Not Specified ]Street Address:City:State:Zip:Submittal Date: Tue Sep 15 14:52:12 EDT 2015
Committee Statement
CommitteeStatement:
Insulation shields are necessary to reduce fire hazards associated with factory builtchimneys. The requirements are based on committee members' experience.
ResponseMessage:
Public Input No. 136NFPA 542015 [New Section after 12.6.2.4]
Ballot Results
This item has passed ballot
26 Eligible Voters1 Not Returned23 Affirmative All2 Affirmative with Comments0 Negative with Comments0 Abstention
Not Returned
2/18/2016 National Fire Protection Association Report
First Revision No. 35NFPA 542015 [ Section No. 12.7.1 ]
12.7.1 Materials.Type B and Type BW gas vents shall be listed in accordance with ANSI/UL 441, GasVents . Vents for listed combination gas and oilburning appliances shall be listed inaccordance with ANSI/UL 641, Type L LowTemperature Venting Systems .
Submitter Information Verification
Submitter Full Name:Laura MontvilleOrganization: [ Not Specified ]Street Address:City:State:Zip:Submittal Date: Tue Sep 15 15:45:40 EDT 2015
Committee Statement
CommitteeStatement:
The definition of gas vents has required them to be listed, so listing standardsare being added to the code.
ResponseMessage:
Public Input No. 89NFPA 542015 [Section No. 12.7.1]
Ballot Results
This item has passed ballot
26 Eligible Voters1 Not Returned23 Affirmative All2 Affirmative with Comments0 Negative with Comments0 Abstention
Not ReturnedFossa, Alberto Jose
Affirmative AllAguilar, Hugo
2/18/2016 National Fire Protection Association Report
First Revision No. 36NFPA 542015 [ Section No. 12.7.3 [Excluding any
SubSections] ]
Venting systems shall be sized and constructed in accordance with Chapter 13 or otherapproved engineering methods and the gas vent and the appliancemanufacturers' 12.7.4.1 through 12.7.4.3 and the appliance manufacturer'sinstructions.
Submitter Information Verification
Submitter Full Name:Laura MontvilleOrganization: [ Not Specified ]Street Address:City:State:Zip:Submittal Date: Tue Sep 15 15:54:56 EDT 2015
Committee Statement
Committee Statement: The redundant text is removed.Response Message:
Public Input No. 56NFPA 542015 [Section No. 12.7.3]
Ballot Results
This item has passed ballot
26 Eligible Voters1 Not Returned23 Affirmative All2 Affirmative with Comments0 Negative with Comments0 Abstention
Not ReturnedFossa, Alberto Jose
Affirmative AllAguilar, Hugo
Antonov, Dmitry
2/18/2016 National Fire Protection Association Report
First Revision No. 84NFPA 542015 [ Section No. 12.9.3 ]
12.9.3 The vent terminal of a direct vent appliance with an input of 10,000 Btu/hr (3 kW) or lessshall be located at least 6 in. (150 mm) from any air opening into a building, an appliancewith an input over 10,000 Btu/hr (3 kW) but not over 50,000 Btu/hr (14.7 kW) shall beinstalled with a 9 in. (230 mm) vent termination clearance, and an appliance with aninput over 50,000 Btu/hr (14.7 kW) shall have at least a 12 in. (300 mm) vent terminationclearance clearances for throughthewall direct vent terminals shall be in accordancewith Table 12.9.3 . The bottom of the vent terminal and the air intake shall be located atleast not less than 12 in. (300 mm) above finished ground level.
Table 12.9.3 ThroughtheWall Direct Vent Termination Clearances.
Direct Vent Appliance Input Rating:Through the Wall Vent Terminal
Clearance from any Air Opening into aBuilding:
10,000 Btu/hr (3kW) and less 6 in.(150 mm)Greater than 10,000 Btu/hr (3kW) and notexceeding 50,000 Btu/h (14.7kW) 9 in.(230 mm)Greater than 50,000 Btu/hr (14.7kW) andnot exceeding 150,000 Btu/h (29.4kW) 12 in.(300 mm)
> 150,000 Btu/hr (29.4kW)
In accordance with the appliancemanufacturer's instructions and in no caseless than the clearances specified in 12.9.2
Supplemental Information
File Name DescriptionStaff_use_only_FR_84_Table_12.9.3.docx New table
Submitter Information Verification
Submitter Full Name:Laura MontvilleOrganization: [ Not Specified ]Street Address:City:State:Zip:Submittal Date: Thu Oct 15 11:47:18 PDT 2015
Committee Statement
CommitteeStatement:
The requirements in 12.9.3 are being reorganized into a table for ease of use. A newsize class is created to represent direct vent appliances larger than typicalresidential furnaces.
Response
2/18/2016 National Fire Protection Association Report
This section shall apply where Table 13.1(a) through Table 13.1(f) are used to sizesingle appliance venting systems. Subsections 13.1.1 through 13.1.18 apply to Table13.1(a) through Table 13.1(f) .
Table 13.1(a) Type B DoubleWall Gas Vent
Number of Appliances:
Appliance Type:
Appliance Vent Connection:
Vent Diameter — D (in.)
3 4 5 6
Appliance Input Rating in Thousands of Btu per Hour
HeightH (ft)
LateralL(ft)
FAN NAT FAN NAT FAN NAT FAN NAT FAN
Min Max Max Min Max Max Min Max Max Min Max Max Min Max
2 8 86 61 11 183 122 14 320 206 15 497 314 22 7155 20 82 NA 27 177 119 35 312 200 43 487 308 55 70210 26 76 NA 35 168 114 45 299 190 56 471 298 73 68115 59 70 NA 42 158 NA 54 287 180 66 455 288 85 66220 NA NA NA 50 149 NA 63 275 169 76 440 278 97 64230 NA NA NA 69 131 NA 84 250 NA 99 410 259 123 605
100 0 NA NA NA 0 218 NA 0 407 NA 0 665 400 0 9972 NA NA NA 10 194 NA 12 354 NA 13 566 375 18 8315 NA NA NA 26 189 NA 33 347 NA 40 557 369 52 82010 NA NA NA 33 182 NA 43 335 NA 53 542 361 68 80115 NA NA NA 40 174 NA 50 321 NA 62 528 353 80 78220 NA NA NA 47 166 NA 59 311 NA 71 513 344 90 76330 NA NA NA NA NA NA 78 290 NA 92 483 NA 115 72650 NA NA NA NA NA NA NA NA NA 147 428 NA 180 651
Number of Appliances:
Appliance Type:
Appliance Vent Connection:
Vent Diameter — D
10 12 14 16 18
HeightH(ft)
LateralL(ft)
Appliance Input Rating in Thousands of Btu per Hour
FAN NAT FAN NAT FAN NAT FAN NAT FAN
Min Max Max Min Max Max Min Max Max Min Max Max Min Max60 0 1121 570 0 1645 850 0 2267 1170 0 2983 1530 0 38022 75 675 455 103 982 650 138 1346 890 178 1769 1170 225 22504 110 668 445 147 975 640 191 1338 880 242 1761 1160 300 22426 128 661 435 171 967 630 219 1330 870 276 1753 1150 341 2235
20 0 35 96 60 54 200 118 78 346 201 114 537 306 149 7722 37 74 50 56 148 99 78 248 165 113 375 248 144 5285 50 68 47 73 140 94 100 239 158 141 363 239 178 51410 NA NA 41 93 129 86 125 223 146 177 344 224 222 49115 NA NA NA NA NA 80 155 208 136 216 325 210 264 46920 NA NA NA NA NA NA 186 192 126 254 306 196 309 448
30 0 34 99 63 53 211 127 76 372 219 110 584 334 144 8492 37 80 56 55 164 111 76 281 183 109 429 279 139 6105 49 74 52 72 157 106 98 271 173 136 417 271 171 59510 NA NA NA 91 144 98 122 255 168 171 397 257 213 57015 NA NA NA 115 131 NA 151 239 157 208 377 242 255 54720 NA NA NA NA NA NA 181 223 NA 246 357 228 298 52430 NA NA NA NA NA NA NA NA NA NA NA NA 389 477
50 0 33 99 66 51 213 133 73 394 230 105 629 361 138 9282 36 84 61 53 181 121 73 318 205 104 495 312 133 7125 48 80 NA 70 174 117 94 308 198 131 482 305 164 69610 NA NA NA 89 160 NA 118 292 186 162 461 292 203 67115 NA NA NA 112 148 NA 145 275 174 199 441 280 244 64620 NA NA NA NA NA NA 176 257 NA 236 420 267 285 62230 NA NA NA NA NA NA NA NA NA 315 376 NA 373 573
100 0 NA NA NA 49 214 NA 69 403 NA 100 659 395 131 9912 NA NA NA 51 192 NA 70 351 NA 98 563 373 125 8285 NA NA NA 67 186 NA 90 342 NA 125 551 366 156 81310 NA NA NA 85 175 NA 113 324 NA 153 532 354 191 78915 NA NA NA 132 162 NA 138 310 NA 188 511 343 230 76420 NA NA NA NA NA NA 168 295 NA 224 487 NA 270 73930 NA NA NA NA NA NA 231 264 NA 301 448 NA 355 68550 NA NA NA NA NA NA NA NA NA NA NA NA 540 584
For SI units, 1 in. = 25.4 mm, l ft = 0.305 m, 1000 Btu/hr = 0.293 kW, 1 in.2 = 645 mm2.
NA: Not applicable.
Table 13.1(c) Masonry Chimney
2/18/2016 National Fire Protection Association Report
Type B DoubleWall Connector Diameter — To be used with chimney areas within the size limits at bottom
3 4 5 6
Appliance Input Rating in Thousands of Btu per Hour
HeightH(ft)
LateralL(ft)
FAN NAT FAN NAT FAN NAT FAN NAT FAN
Min Max Max Min Max Max Min Max Max Min Max Max Min Max
6 2 NA NA 28 NA NA 52 NA NA 86 NA NA 130 NA NA5 NA NA 25 NA NA 49 NA NA 82 NA NA 117 NA NA
8 2 NA NA 29 NA NA 55 NA NA 93 NA NA 145 NA NA5 NA NA 26 NA NA 52 NA NA 88 NA NA 134 NA NA8 NA NA 24 NA NA 48 NA NA 83 NA NA 127 NA NA
10 2 NA NA 31 NA NA 61 NA NA 103 NA NA 162 NA NA5 NA NA 28 NA NA 57 NA NA 96 NA NA 148 NA NA10 NA NA 25 NA NA 50 NA NA 87 NA NA 139 NA NA
15 2 NA NA 35 NA NA 67 NA NA 114 NA NA 179 53 4755 NA NA 35 NA NA 62 NA NA 107 NA NA 164 NA NA10 NA NA 28 NA NA 55 NA NA 97 NA NA 153 NA NA15 NA NA NA NA NA 48 NA NA 89 NA NA 141 NA NA
20 2 NA NA 38 NA NA 74 NA NA 124 NA NA 201 51 5225 NA NA 36 NA NA 68 NA NA 116 NA NA 184 80 50310 NA NA NA NA NA 60 NA NA 107 NA NA 172 NA NA15 NA NA NA NA NA NA NA NA 97 NA NA 159 NA NA20 NA NA NA NA NA NA NA NA 83 NA NA 148 NA NA
30 2 NA NA 41 NA NA 82 NA NA 137 NA NA 216 47 5815 NA NA NA NA NA 76 NA NA 128 NA NA 198 75 56110 NA NA NA NA NA 67 NA NA 115 NA NA 184 NA NA15 NA NA NA NA NA NA NA NA 107 NA NA 171 NA NA20 NA NA NA NA NA NA NA NA 91 NA NA 159 NA NA30 NA NA NA NA NA NA NA NA NA NA NA NA NA NA
50 2 NA NA NA NA NA 92 NA NA 161 NA NA 251 NA NA5 NA NA NA NA NA NA NA NA 151 NA NA 230 NA NA10 NA NA NA NA NA NA NA NA 138 NA NA 215 NA NA15 NA NA NA NA NA NA NA NA 127 NA NA 199 NA NA20 NA NA NA NA NA NA NA NA NA NA NA 185 NA NA30 NA NA NA NA NA NA NA NA NA NA NA NA NA NA
Minimuminternal area ofchimney (in.2)
12 19 28 38
Maximuminternal area ofchimney (in.2)
Seven times the listed appliance categorized vent area, flue collar area, or draft hood outlet areas.
For SI units, 1 in. = 25.4 mm, l ft = 0.305 m, 1000 Btu/hr = 0.293 kW, 1 in.2 = 645 mm2.
2/18/2016 National Fire Protection Association Report
SingleWall Metal Connector Diameter — To be used with chimney areas within the size limits at bottom
3 4 5 6
Appliance Input Rating in Thousands of Btu per Hour
HeightH(ft)
LateralL(ft)
FAN NAT FAN NAT FAN NAT FAN NAT FAN
Min Max Max Min Max Max Min Max Max Min Max Max Min Max
6 2 NA NA 28 NA NA 52 NA NA 86 NA NA 130 NA NA5 NA NA 25 NA NA 48 NA NA 81 NA NA 116 NA NA
8 2 NA NA 29 NA NA 55 NA NA 93 NA NA 145 NA NA5 NA NA 26 NA NA 51 NA NA 87 NA NA 133 NA NA8 NA NA 23 NA NA 47 NA NA 82 NA NA 126 NA NA
10 2 NA NA 31 NA NA 61 NA NA 102 NA NA 161 NA NA5 NA NA 28 NA NA 56 NA NA 95 NA NA 147 NA NA10 NA NA 24 NA NA 49 NA NA 86 NA NA 137 NA NA
15 2 NA NA 35 NA NA 67 NA NA 113 NA NA 178 166 4735 NA NA 32 NA NA 61 NA NA 106 NA NA 163 NA NA10 NA NA 27 NA NA 54 NA NA 96 NA NA 151 NA NA15 NA NA NA NA NA 46 NA NA 87 NA NA 138 NA NA
20 2 NA NA 38 NA NA 73 NA NA 123 NA NA 200 163 5205 NA NA 35 NA NA 67 NA NA 115 NA NA 183 NA NA10 NA NA NA NA NA 59 NA NA 105 NA NA 170 NA NA15 NA NA NA NA NA NA NA NA 95 NA NA 156 NA NA20 NA NA NA NA NA NA NA NA 80 NA NA 144 NA NA
30 2 NA NA 41 NA NA 81 NA NA 136 NA NA 215 158 5785 NA NA NA NA NA 75 NA NA 127 NA NA 196 NA NA10 NA NA NA NA NA 66 NA NA 113 NA NA 182 NA NA15 NA NA NA NA NA NA NA NA 105 NA NA 168 NA NA20 NA NA NA NA NA NA NA NA 88 NA NA 155 NA NA30 NA NA NA NA NA NA NA NA NA NA NA NA NA NA
50 2 NA NA NA NA NA 91 NA NA 160 NA NA 250 NA NA5 NA NA NA NA NA NA NA NA 149 NA NA 228 NA NA10 NA NA NA NA NA NA NA NA 136 NA NA 212 NA NA15 NA NA NA NA NA NA NA NA 124 NA NA 195 NA NA20 NA NA NA NA NA NA NA NA NA NA NA 180 NA NA30 NA NA NA NA NA NA NA NA NA NA NA NA NA NA
Minimuminternal area of
12 19 28 38
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5 NA 78 137 210 296 410 694 108010 NA 68 125 196 274 388 656 105015 NA NA 113 177 258 366 625 100020 NA NA 99 163 240 344 596 96030 NA NA NA NA 192 295 540 890
50 0 NA 120 210 310 443 590 980 15502 NA 95 171 260 370 492 820 12905 NA NA 159 234 342 474 780 123010 NA NA 146 221 318 456 730 119015 NA NA NA 200 292 407 705 113020 NA NA NA 185 276 384 670 108030 NA NA NA NA 222 330 605 1010
For SI units, 1 in. = 25.4 mm, 1 ft = 0.305 m, 1000 Btu/hr = 0.293 kW, 1 in.2 = 645mm2.
NA: Not applicable.
Table 13.1(f) Exterior Masonry Chimney
Number of Appliances: Single
Appliance Type: NAT
Appliance VentConnection:
Type B DoubleWallConnector
Minimum Allowable Input Rating of SpaceHeating Appliance in Thousands ofBtu per Hour
VentHeightH (ft)
Internal Area of Chimney (in.2)
12 19 28 38 50 63 78 113
Local 99% winter design temperature: 37°F or greater6 0 0 0 0 0 0 0 08 0 0 0 0 0 0 0 010 0 0 0 0 0 0 0 015 NA 0 0 0 0 0 0 020 NA NA 123190 249 184 0 030 NA NA NA NA NA 393 334 050 NA NA NA NA NA NA NA 579
Local 99% winter design temperature: 27°F to 36°F6 0 0 68 116 156 180 212 2668 0 0 82 127 167 187 214 26310 0 51 97 141 183 201 225 26515 NA NA NA NA 233 253 274 30520 NA NA NA NA NA 307 330 36230 NA NA NA NA NA 419 445 48550 NA NA NA NA NA NA NA 763
Local 99% winter design temperature: 17°F to 26°F6 NA NA NA NA NA 215 259 3498 NA NA NA NA 197 226 264 352
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10 NA NA NA NA 214 245 278 35815 NA NA NA NA NA 296 331 39820 NA NA NA NA NA 352 387 45730 NA NA NA NA NA NA 507 58150 NA NA NA NA NA NA NA NA
Local 99% winter design temperature: 5°F to 16°F6 NA NA NA NA NA NA NA 4168 NA NA NA NA NA NA 312 42310 NA NA NA NA NA 289 331 43015 NA NA NA NA NA NA 393 48520 NA NA NA NA NA NA 450 54730 NA NA NA NA NA NA NA 68250 NA NA NA NA NA NA NA 972
Local 99% winter design temperature: 10°F to 4°F6 NA NA NA NA NA NA NA 4848 NA NA NA NA NA NA NA 49410 NA NA NA NA NA NA NA 51315 NA NA NA NA NA NA NA 58620 NA NA NA NA NA NA NA 65030 NA NA NA NA NA NA NA 80550 NA NA NA NA NA NA NA 1003
Local 99% winter design temperature: 11°F or lowerNot recommended for any vent configurations
For SI units, 1 in. = 25.4 mm, 1 in.2 = 645 mm2, 1 ft = 0.305 m, 1000 Btu/hr = 0.293kW, °C = (°F 32)/1.8.
Note: See Figure F.2.4 for a map showing local 99 percent winter design temperatures inthe United States.
NA: Not applicable.
13.1.1 Obstructions and Vent Dampers.Venting Table 13.1(a) through Table 13.1(f) shall not be used where obstructions areinstalled in the venting system. The installation of vents serving listed appliances withvent dampers shall be in accordance with the appliance manufacturer’s instructions or inaccordance with the following:
(1) The maximum capacity of the vent system shall be determined using the “NATMax” column.
(2) The minimum capacity shall be determined as though the appliance were a fanassisted appliance, using the “FAN Min” column to determine the minimumcapacity of the vent system. Where the corresponding “Fan Min” is “NA,” the ventconfiguration shall not be permitted and an alternative venting configuration shall beutilized.
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13.1.2 Vent Downsizing.Where the vent size determined from the tables is smaller than the appliance draft hoodoutlet or flue collar, the use of the smaller size shall be permitted, provided that theinstallation complies with all of the following requirements:
(1) The total vent height (H) is at least 10 ft (3 m).
(2) Vents for appliance draft hood outlets or flue collars 12 in. (300 mm) in diameter orsmaller are not reduced more than one table size.
(3) Vents for appliance draft hood outlets or flue collars larger than 12 in. (300 mm) indiameter are not reduced more than two table sizes.
(4) The maximum capacity listed in the tables for a fanassisted appliance is reducedby 10 percent (0.90 × maximum table capacity).
(5) The draft hood outlet is greater than 4 in. (100 mm) in diameter. A 3 in. (80 mm)diameter vent shall not be connected to a 4 in. (100 mm) diameter draft hood outlet.This provision shall not apply to fanassisted appliances.
13.1.3 Elbows.Singleappliance venting configurations with zero (0) lateral lengths in Table 13.1(a),Table 13.1(b), and Table 13.1(e) shall not have elbows in the venting system. Singleappliance venting with lateral lengths include two 90 degree elbows. For each additionalelbow up to and including 45 degrees, the maximum capacity listed in the venting tablesshall be reduced by 5 percent. For each additional elbow greater than 45 degrees up toand including 90 degrees, the maximum capacity listed in the venting tables shall bereduced by 10 percent. Where multiple offsets occur in a vent, the total lateral length ofall offsets combined shall not exceed that specified in Table 13.1(a) through Table13.1(e).
13.1.4 Zero Lateral.Zero (0) lateral (L) shall apply only to a straight vertical vent attached to a top outlet drafthood or flue collar.
13.1.5 HighAltitude Installations.Sea level input ratings shall be used when determining maximum capacity for highaltitude installation. Actual input (derated for altitude) shall be used for determiningminimum capacity for highaltitude installation.
13.1.6 TwoStage/Modulating Appliances.For appliances with more than one input rate, the minimum vent capacity (FAN Min)determined from the Chapter 13 tables shall be less than the lowest appliance inputrating, and the maximum vent capacity (FAN Max/NAT Max) determined from the tablesshall be greater than the highest appliance rating input.
13.1.7* Corrugated Chimney Liners.Listed corrugated metallic chimney liner systems in masonry chimneys shall be sized byusing Table 13.1(a) or Table 13.1(b) for Type B vents, with the maximum capacityreduced by 20 percent (0.80 × maximum capacity) and the minimum capacity as shownin Table 13.1(a) or Table 13.1(b). Corrugated metallic liner systems installed with bendsor offsets shall have their maximum capacity further reduced in accordance with 13.1.3.The 20 percent reduction for corrugated metallic chimney liner systems includes anallowance for one long radius 90 degree turn at the bottom of the liner.
13.1.8 Connection to Chimney Liners.Connections between chimney liners and listed doublewall connectors shall be madewith listed adapters designed for such purpose.
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13.1.9 Vertical Vent Upsizing/7 × Rule.Where the vertical vent has a larger diameter than the vent connector, the vertical ventdiameter shall be used to determine the minimum vent capacity, and the connectordiameter shall be used to determine the maximum vent capacity. The flow area of thevertical vent shall not exceed seven times the flow area of the listed appliancecategorized vent area, flue collar area, or draft hood outlet area unless designed inaccordance with approved engineering methods.
13.1.10 Draft Hood Conversion Accessories.Draft hood conversion accessories for use with masonry chimneys venting listedCategory I fanassisted appliances shall be listed and installed in accordance with thelisted accessory manufacturers' installation instructions.
13.1.11 Chimneys and Vent Locations.Table 13.1(a) through Table 13.1(e) shall be used only for chimneys and vents notexposed to the outdoors below the roof line. A Type B vent or listed chimney liningsystem passing through an unused masonry chimney flue shall not be considered to beexposed to the outdoors. Where vents extend outdoors above the roof more than 5 ft(1.5 m) higher than required by Table 12.7.3Table 12.7.2 , and where vents terminate inaccordance with 12.7.312.7.2 (1)(b), the outdoor portion of the vent shall be enclosed asrequired by this paragraph for vents not considered to be exposed to the outdoors, orsuch venting system shall be engineered. A Type B vent passing through anunventilated enclosure or chase insulated to a value of not less than R8 shall not beconsidered to be exposed to the outdoors. Table 13.1(c) in combination with Table13.1(f) shall be used for clay tile–lined exterior masonry chimneys, provided all of thefollowing requirements are met:
(1) The vent connector is Type B double wall.
(2) The vent connector length is limited to 18 in./in. (18 mm/mm) of vent connectordiameter.
(3) The appliance is draft hood equipped.
(4) The input rating is less than the maximum capacity given in Table 13.1(c).
(5) For a water heater, the outdoor design temperature shall not be less than 5°F(−15°C).
(6) For a spaceheating appliance, the input rating is greater than the minimumcapacity given by Table 13.1(f).
13.1.12 Corrugated Vent Connector Size.Corrugated vent connectors shall not be smaller than the listed appliance categorizedvent diameter, flue collar diameter, or draft hood outlet diameter.
13.1.13 Upsizing.Vent connectors shall not be upsized more than two sizes greater than the listedappliance categorized vent diameter, flue collar diameter, or draft hood outlet diameter.
13.1.14 Multiple Vertical Vent Sizes.In a single run of vent or vent connector, more than one diameter and type shall bepermitted to be used, provided that all the sizes and types are permitted by the tables.
13.1.15 Interpolation.Interpolation shall be permitted in calculating capacities for vent dimensions that fallbetween table entries.
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13.1.16 Extrapolation.Extrapolation beyond the table entries shall not be permitted.
13.1.17 Sizing Vents Not Covered by Tables.For vent heights lower than 6 ft (1.8 m) and higher than shown in the Chapter 13 tables,engineering methods shall be used to calculate vent capacities.
13.1.18 Height Entries.Where the actual height of a vent falls between entries in the height column of theapplicable table in Table 13.1(a) through Table 13.1(f) either of the following shall beused:
(1) Interpolation
(2) The lower appliance input rating shown in the table entries for FAN MAX Max andNAT MAX Max column values; and the higher appliance input rating for the FANMIN Min column values
Submitter Information Verification
Submitter Full Name:Laura MontvilleOrganization: [ Not Specified ]Street Address:City:State:Zip:Submittal Date: Tue Sep 15 16:58:53 EDT 2015
Committee Statement
Committee Statement: A charging statement has been added to reference the vent tables.Response Message:
Ballot Results
This item has passed ballot
26 Eligible Voters1 Not Returned23 Affirmative All2 Affirmative with Comments0 Negative with Comments0 Abstention
Not ReturnedFossa, Alberto Jose
Affirmative All
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This section shall apply where Table 13.2(a) through Table 13.2(i) are used to sizemultiple appliance venting systems. Subsections 13.2.1 through 13.2.30 apply toTable 13.2(a) through Table 13.2(i) .
Table 13.2(a) Type B DoubleWall Vent
Number of Appliances:
Appliance Vent Connection:
Vent Connector Capacity
Type B DoubleWall Vent and Connector Diameter —
VentHeightH(ft)
ConnectorRiseR (ft)
3 4 5 6
Appliance Input Rating Limits in Thousands of Btu per Hour
FAN NAT FAN NAT FAN NAT FAN NAT FAN
Min Max Max Min Max Max Min Max Max Min Max Max Min Max6 1 22 37 26 35 66 46 46 106 72 58 164 104 77 225
Appliance Input Rating Limits in Thousands of Btu per Hour
FAN NAT FAN NAT FAN NAT FAN NAT FAN
Min Max Max Min Max Max Min Max Max Min Max Max Min Max
6 2 174 764 496 223 1046 653 281 1371 853 346 1772 1080 NA NA4 180 897 616 230 1231 827 287 1617 1081 352 2069 1370 NA NA6 NA NA NA NA NA NA NA NA NA NA NA NA NA NA
Minimum Internal Area of Masonry Chimney Flue (in.
12 19 28 38
VentHeightH(ft)
Combined Appliance Input Rating in Thousands of Btu per Hour
FAN+FAN
FAN+NAT
NAT+NAT
FAN+FAN
FAN+NAT
NAT+NAT
FAN+FAN
FAN+NAT
NAT+NAT
FAN+FAN
FAN+NAT +NAT
6 NA 74 25 NA 119 46 NA 178 71 NA 2578 NA 80 28 NA 130 53 NA 193 82 NA 27910 NA 84 31 NA 138 56 NA 207 90 NA 29915 NA NA 36 NA 152 67 NA 233 106 NA 33420 NA NA 41 NA NA 75 NA 250 122 NA 36830 NA NA NA NA NA NA NA 270 137 NA 40450 NA NA NA NA NA NA NA NA NA NA NA100 NA NA NA NA NA NA NA NA NA NA NA
Table 13.2(d) Masonry Chimney
Appliance Vent Connection:
Vent Connector Capacity
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Appliance Input Rating Limits in Thousands of Btu per Hour
FAN NAT FAN NAT FAN NAT FAN NAT FAN
Min Max Max Min Max Max Min Max Max Min Max Max Min Max
6 1 NA NA 21 NA NA 39 NA NA 66 179 191 100 231 2712 NA NA 28 NA NA 52 NA NA 84 186 227 123 239 3213 NA NA 34 NA NA 61 134 153 97 193 258 142 247 365
8 1 NA NA 21 NA NA 40 NA NA 68 195 208 103 250 2982 NA NA 28 NA NA 52 137 139 85 202 240 125 258 3433 NA NA 34 NA NA 62 143 156 98 210 264 145 266 376
10 1 NA NA 22 NA NA 41 130 151 70 202 225 106 267 3162 NA NA 29 NA NA 53 136 150 86 210 255 128 276 3583 NA NA 34 97 102 62 143 166 99 217 277 147 284 389
15 1 NA NA 23 NA NA 43 129 151 73 199 271 112 268 3762 NA NA 30 92 103 54 135 170 88 207 295 132 277 4113 NA NA 34 96 112 63 141 185 101 215 315 151 286 439
20 1 NA NA 23 87 99 45 128 167 76 197 303 117 265 4252 NA NA 30 91 111 55 134 185 90 205 325 136 274 4553 NA NA 35 96 119 64 140 199 103 213 343 154 282 481
30 1 NA NA 24 86 108 47 126 187 80 193 347 124 259 4922 NA NA 31 91 119 57 132 203 93 201 366 142 269 5183 NA NA 35 95 127 65 138 216 105 209 381 160 277 540
50 1 NA NA 24 85 113 50 124 204 87 188 392 139 252 5672 NA NA 31 89 123 60 130 218 100 196 408 158 262 5883 NA NA 35 94 131 68 136 231 112 205 422 176 271 607
100 1 NA NA 23 84 104 49 122 200 89 182 410 151 243 6172 NA NA 30 88 115 59 127 215 102 190 425 169 253 6363 NA NA 34 93 124 67 133 228 115 199 438 188 262 654
Common Vent Capacity
Minimum Internal Area of Masonry Chimney Flue (in.
12 19 28 38
VentHeightH(ft)
Combined Appliance Input Rating in Thousands of Btu per Hour
FAN+FAN
FAN+NAT
NAT+NAT
FAN+FAN
FAN+NAT
NAT+NAT
FAN+FAN
FAN+NAT
NAT+NAT
FAN+FAN
FAN+NAT +NAT
6 NA NA 25 NA 118 45 NA 176 71 NA 2558 NA NA 28 NA 128 52 NA 190 81 NA 27610 NA NA 31 NA 136 56 NA 205 89 NA 29515 NA NA 36 NA NA 66 NA 230 105 NA 33520 NA NA NA NA NA 74 NA 247 120 NA 362
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Combined Appliance Maximum Input Rating in Thousands of Btu per Hour
VentHeightH(ft)
Internal Area of Chimney (in.2)
12 19 28 38 50 63 78 113
6 25 46 71 103 143 188 246 NA8 28 53 82 119 163 218 278 40810 31 56 90 131 177 236 302 45415 NA 67 106152 212 283 365 54620 NA NANA NA NA 325 419 64830 NA NANA NA NA NA 496 74950 NA NANA NA NA NA NA 922100 NA NANA NA NA NA NA NA
For SI units, 1 in. = 25.4 mm, 1 in.2 = 645 mm2, 1 ft = 0.305 m, 1000 Btu/hr = 0.293kW.
Table 13.2(g) Exterior Masonry Chimney
Number of Appliances: Two or More
Appliance Type: NAT + NAT
Appliance VentConnection:
Type B DoubleWallConnector
Minimum Allowable Input Rating of SpaceHeating Appliance in Thousands ofBtu per Hour
VentHeightH(ft)
Internal Area of Chimney (in.2)
12 19 28 38 50 63 78 113
Local 99% winter design temperature: 37°F or greater6 0 0 0 0 0 0 0 NA8 0 0 0 0 0 0 0 010 0 0 0 0 0 0 0 015 NA 0 0 0 0 0 0 020 NA NA NA NA NA 184 0 030 NA NA NA NA NA 393 334 050 NA NA NA NA NA NA NA 579100 NA NA NA NA NA NA NA NA
Local 99% winter design temperature: 27°F to 36°F6 0 0 68 NA NA 180 212 NA8 0 0 82 NA NA 187 214 26310 0 51 NA NA NA 201 225 265
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15 NA NA NA NA NA 253 274 30520 NA NA NA NA NA 307 330 36230 NA NA NA NA NA NA 445 48550 NA NA NA NA NA NA NA 763100 NA NA NA NA NA NA NA NA
Local 99% winter design temperature: 17°F to 26°F6 NA NA NA NA NA NA NA NA8 NA NA NA NA NA NA 264 35210 NA NA NA NA NA NA 278 35815 NA NA NA NA NA NA 331 39820 NA NA NA NA NA NA 387 45730 NA NA NA NA NA NA NA 58150 NA NA NA NA NA NA NA 862100 NA NA NA NA NA NA NA NA
Local 99% winter design temperature: 5°F to 16°F6 NA NA NA NA NA NA NA NA8 NA NA NA NA NA NA NA NA10 NA NA NA NA NA NA NA 43015 NA NA NA NA NA NA NA 48520 NA NA NA NA NA NA NA 54730 NA NA NA NA NA NA NA 68250 NA NA NA NA NA NA NA NA100 NA NA NA NA NA NA NA NA
Local 99% winter design temperature: 4°F or lowerNot recommended for any vent configurations
For SI units, 1 in. = 25.4 mm, 1 in.2 = 645 mm2, 1 ft = 0.305 m, 1000 Btu/hr = 0.293kW, °C = (°F 32)/1.8.
Note: See Figure F.2.4 for a map showing local 99 percent winter design temperatures inthe United States.
Table 13.2(h) Exterior Masonry Chimney
Number of Appliances: Two or More
Appliance Type: FAN + NAT
Appliance VentConnection:
Type B DoubleWallConnector
Combined Appliance Maximum Input Rating in Thousands of Btu per Hour
30 NA NA NA 404 564 747 969 147350 NA NA NA NA NA 831 1089 1692100 NA NA NA NA NA NA NA 1921
For SI units, 1 in. = 25.4 mm, 1 in.2 = 645 mm2, 1 ft = 0.305 m, 1000 Btu/hr = 0.293kW.
Table 13.2(i) Exterior Masonry Chimney
Number of Appliances: Two or More
Appliance Type: FAN + NAT
Appliance VentConnection:
Type B DoubleWallConnector
Minimum Allowable Input Rating of SpaceHeating Appliance in Thousands ofBtu per Hour
VentHeightH(ft)
Internal Area of Chimney (in.2)
12 19 28 38 50 63 78 113
Local 99% winter design temperature: 37°F or greater6 0 0 0 0 0 0 0 08 0 0 0 0 0 0 0 010 0 0 0 0 0 0 0 015 NA 0 0 0 0 0 0 020 NA NA 123190 249 184 0 030 NA NA NA 334 398 393 334 050 NA NA NA NA NA 714 707 579100 NA NA NA NA NA NA NA 1600
Local 99% winter design temperature: 27°F to 36°F6 0 0 68 116 156 180 212 2668 0 0 82 127 167 187 214 26310 0 51 97 141 183 201 225 26515 NA 111142183 233 253 274 30520 NA NA 187230 284 307 330 36230 NA NA NA 330 319 419 445 48550 NA NA NA NA NA 672 705 763100 NA NA NA NA NA NA NA 1554
Local 99% winter design temperature: 17°F to 26°F6 0 55 99 141 182 215 259 3498 52 74 111154 197 226 264 35210 NA 90 125169 214 245 278 35815 NA NA 167212 263 296 331 39820 NA NA 212258 316 352 387 45730 NA NA NA 362 429 470 507 58150 NA NA NA NA NA 723 766 862100 NA NA NA NA NA NA NA 1669
Local 99% winter design temperature: 5°F to 16°F
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6 NA 78 121166 214 252 301 4168 NA 94 135182 230 269 312 42310 NA 111149198 250 289 331 43015 NA NA 193247 305 346 393 48520 NA NA NA 293 360 408 450 54730 NA NA NA 377 450 531 580 68250 NA NA NA NA NA 797 853 972100 NA NA NA NA NA NA NA 1833
Local 99% winter design temperature: 10°F to 4°F6 NA NA 145196 249 296 349 4848 NA NA 159213 269 320 371 49410 NA NA 175231 292 339 397 51315 NA NA NA 283 351 404 457 58620 NA NA NA 333 408 468 528 65030 NA NA NA NA NA 603 667 80550 NA NA NA NA NA NA 955 1003100 NA NA NA NA NA NA NA NA
Local 99% winter design temperature: 11°F or lowerNot recommended for any vent configurations
For SI units, 1 in. = 25.4 mm, 1 in.2 = 645 mm2, 1 ft = 0.305 m, 1000 Btu/hr = 0.293kW.
Note: See Figure F.2.4 for a map showing local 99 percent winter design temperatures inthe United States.
13.2.1 Obstructions and Vent Dampers.Venting Table 13.2(a) through Table 13.2(i) shall not be used where obstructions areinstalled in the venting system. The installation of vents serving listed appliances withvent dampers shall be in accordance with the appliance manufacturer’s instructions, orin accordance with the following:
(1) The maximum capacity of the vent connector shall be determined using the NATMax column.
(2) The maximum capacity of the vertical vent or chimney shall be determined usingthe FAN+NAT column when the second appliance is a fanassisted appliance, orthe NAT+NAT column when the second appliance is equipped with a draft hood.
(3) The minimum capacity shall be determined as if the appliance were a fanassistedappliance, as follows:
(a) The minimum capacity of the vent connector shall be determined using theFAN Min column.
(b) The FAN+FAN column shall be used when the second appliance is a fanassisted appliance, and the FAN+NAT column shall be used when thesecond appliance is equipped with a draft hood, to determine whether thevertical vent or chimney configuration is not permitted (NA). Where the ventconfiguration is NA, the vent configuration shall not be permitted and analternative venting configuration shall be utilized.
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13.2.2 Vent Connector Maximum Length.The maximum vent connector horizontal length shall be 18 in./in. (18 mm/mm) ofconnector diameter as shown in Table 13.2.2, or as permitted by 13.2.3.
13.2.3 Vent Connector Exceeding Maximum Length.The vent connector shall be routed to the vent utilizing the shortest possible route.Connectors with longer horizontal lengths than those listed in Table 13.2.2 are permittedunder the following conditions:
(1) The maximum capacity (FAN Max or NAT Max) of the vent connector shall bereduced 10 percent for each additional multiple of the length listed in Table 13.2.2.For example, the maximum length listed for a 4 in. (100 mm) connector is 6 ft (1.8m). With a connector length greater than 6 ft (1.8 m) but not exceeding 12 ft (3.7m), the maximum capacity must be reduced by 10 percent (0.90 × maximum ventconnector capacity). With a connector length greater than 12 ft (3.7 m) but notexceeding 18 ft (5.5 m), the maximum capacity must be reduced by 20 percent(0.80 × maximum vent capacity).
(2) For a connector serving a fanassisted appliance, the minimum capacity (FAN Min)of the connector shall be determined by referring to the corresponding singleappliance table. For Type B doublewall connectors, Table 13.1(a) shall be used.For singlewall connectors, Table 13.1(b) shall be used. The height (H) and lateral(L) shall be measured according to the procedures for a single appliance vent, as ifthe other appliances were not present.
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13.2.4 Vent Connector Manifolds.Where the vent connectors are combined prior to entering the vertical portion of thecommon vent to form a common vent manifold, the size of the common vent manifoldand the common vent shall be determined by applying a 10 percent reduction (0.90 ×maximum common vent capacity) to the common vent capacity part of the commonvent tables. The length of the common vent manifold (LM) shall not exceed 18 in./in. (18mm/mm) of common vent diameter (D).
13.2.5 Vent Offsets.Where the common vertical vent is offset, the maximum capacity of the common ventshall be reduced in accordance with 13.2.6 and the horizontal length of the commonvent offset shall not exceed 18 in./in. (18 mm/mm) of common vent diameter (D). Wheremultiple offsets occur in a common vent, the total horizontal length of all offsetscombined shall not exceed 18 in./in. (18 mm/mm) of the common vent diameter.
13.2.6 Elbows in Vents.For each elbow up to and including 45 degrees in the common vent, the maximumcommon vent capacity listed in the venting tables shall be reduced by 5 percent. Foreach elbow greater than 45 degrees up to and including 90 degrees, the maximumcommon vent capacity listed in the venting tables shall be reduced by 10 percent.
13.2.7 Elbows in Connectors.The vent connector capacities listed in the common vent sizing tables include allowancefor two 90 degree elbows. For each additional elbow up to and including 45 degrees, themaximum vent connector capacity listed in the venting tables shall be reduced by 5percent. For each elbow greater than 45 degrees up to and including 90 degrees, themaximum vent connector capacity listed in the venting tables shall be reduced by 10percent.
13.2.8 Common Vent Minimum Size.The crosssectional area of the common vent shall be equal to or greater than the crosssectional area of the largest connector.
13.2.9 Tee and Wye Fittings.
Tee and wye fittings connected to a common gas vent shall be considered as part of thecommon gas vent and constructed of materials consistent with that of the common gasvent.
13.2.10 Tee and Wye Sizing.
At the point where tee or wye fittings connect to a common gas vent, the opening sizeof the fitting shall be equal to the size of the common vent. Such fittings shall not beprohibited from having reduced size openings at the point of connection of appliance gasvent connectors.
13.2.11 HighAltitude Installations.Sea level input ratings shall be used when determining maximum capacity for highaltitude installation. Actual input (derated for altitude) shall be used for determiningminimum capacity for highaltitude installation.
13.2.12 Connector Rise.The connector rise (R) for each appliance connector shall be measured from the drafthood outlet or flue collar to the centerline where the vent gas streams come together.
13.2.13 Vent Height.For multiple appliances all located on one floor, available total height (H) shall bemeasured from the highest draft hood outlet or flue collar up to the level of the outlet ofthe common vent.
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13.2.14 Multistory Vent Height.For multistory installations, available total height (H) for each segment of the systemshall be the vertical distance between the highest draft hood outlet or flue collar enteringthat segment and the centerline of the next higher interconnection tee.
13.2.15 Multistory Lowest Vent and Vent Connector Sizing.The size of the lowest connector and of the vertical vent leading to the lowestinterconnection of a multistory system shall be in accordance with Table 13.1(a) orTable 13.1(b) for available total height (H) up to the lowest interconnection.
13.2.16 Multistory B Vents Required.Where used in multistory systems, vertical common vents shall be Type B double walland shall be installed with a listed vent cap.
13.2.17 Multistory Vent Offsets and Capacity.Offsets in multistory common vent systems shall be limited to a single offset in eachsystem, and systems with an offset shall comply with all of the following:
(1) The offset angle shall not exceed 45 degrees from vertical.
(2) The horizontal length of the offset shall not exceed 18 in./in. (18 mm/mm) ofcommon vent diameter of the segment in which the offset is located.
(3) For the segment of the common vertical vent containing the offset, the commonvent capacity listed in the common venting tables shall be reduced by 20 percent(0.80 × maximum common vent capacity).
(4) A multistory common vent shall not be reduced in size above the offset.
13.2.18 Vertical Vent Size Limitation.Where two or more appliances are connected to a vertical vent or chimney, the flow areaof the largest section of vertical vent or chimney shall not exceed seven times thesmallest listed appliance categorized vent areas, flue collar area, or draft hood outletarea unless designed in accordance with approved engineering methods.
13.2.19 TwoStage/Modulating Appliances.For appliances with more than one input rate, the minimum vent connector capacity(FAN Min) determined from the tables shall be less than the lowest appliance inputrating, and the maximum vent connector capacity (FAN Max or NAT Max) determinedfrom the tables shall be greater than the highest appliance input rating.
13.2.20* Corrugated Chimney Liners.Listed corrugated metallic chimney liner systems in masonry chimneys shall be sized byusing Table 13.2(a) or Table 13.2(b) for Type B vents, with the maximum capacityreduced by 20 percent (0.80 × maximum capacity) and the minimum capacity as shownin Table 13.2(a) or Table 13.2(b). Corrugated metallic liner systems installed with bendsor offsets shall have their maximum capacity further reduced in accordance with 13.2.6and 13.2.7. The 20 percent reduction for corrugated metallic chimney liner systemsincludes an allowance for one long radius 90degree turn at the bottom of the liner.
13.2.21 Connections to Chimney Liners.Where doublewall connectors are required, tee and wye fittings used to connect to thecommon vent chimney liner shall be listed doublewall fittings. Connections betweenchimney liners and listed doublewall fittings shall be made with listed adapter fittingsdesigned for such purpose.
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13.2.22 Chimneys and Vent Locations.Table 13.2(a) through Table 13.2(e) shall be used only for chimneys and vents notexposed to the outdoors below the roof line. A Type B vent or listed chimney liningsystem passing through an unused masonry chimney flue shall not be considered to beexposed to the outdoors. A Type B vent passing through an unventilated enclosure orchase insulated to a value of not less than R8 shall not be considered to be exposed tothe outdoors. Where vents extend outdoors above the roof more than 5 ft (1.5 m) higherthan required by Table 12.7.3Table 12.7.2 , and where vents terminate in accordancewith 12.7.312.7.2 (1)(b), the outdoor portion of the vent shall be enclosed as required bythis paragraph for vents not considered to be exposed to the outdoors, or such ventingsystem shall be engineered. Table 13.2(f), Table 13.2(g), Table 13.2(h), and Table13.2(i) shall be used for clay tile lined exterior masonry chimneys, provided all thefollowing conditions are met:
(1) The vent connector is Type B double wall.
(2) At least one appliance is draft hood equipped.
(3) The combined appliance input rating is less than the maximum capacity given byTable 13.2(f) (for NAT+NAT) or Table 13.2(h) (for FAN+NAT).
(4) The input rating of each spaceheating appliance is greater than the minimum inputrating given by Table 13.2(g) (for NAT+NAT) or Table 13.2(i) (for FAN+NAT).
(5) The vent connector sizing is in accordance with Table 13.2(c).
13.2.23 Draft Hood Conversion Accessories.Draft hood conversion accessories for use with masonry chimney venting listedCategory I fanassisted appliances shall be listed and installed in accordance with thelisted accessory manufacturer's installation instructions.
13.2.24 Vent Connector Sizing.Vent connectors shall not be increased more than two sizes greater than the listedappliance categorized vent diameter, flue collar diameter, or draft hood outlet diameter.Vent connectors for draft hood–equipped appliances shall not be smaller than the drafthood outlet diameter. Where a vent connector size(s) determined from the tables for afanassisted appliance(s) is smaller than the flue collar diameter, the use of the smallersize(s) shall be permitted, provided that the installation complies with all of the followingconditions:
(1) Vent connectors for fanassisted appliance flue collars 12 in. (300 mm) in diameteror smaller are not reduced by more than one table size [e.g., 12 in. to 10 in. (300mm to 250 mm) is a onesize reduction], and those larger than 12 in. (300 mm) indiameter are not reduced more than two table sizes [e.g., 24 in. to 20 in. (610 mmto 510 mm) is a twosize reduction].
(2) The fanassisted appliance(s) is common vented with a draft hood–equippedappliance(s).
(3) The vent connector has a smooth interior wall.
13.2.25 Multiple Vent and Connector Sizes.All combinations of pipe sizes, singlewall metal pipe, and doublewall metal pipe shallbe allowed within any connector run(s) or within the common vent, provided ALL of theappropriate tables permit ALL of the desired sizes and types of pipe, as if they wereused for the entire length of the subject connector or vent. Where singlewall and Type Bdoublewall metal pipes are used for vent connectors within the same venting system,the common vent shall be sized using Table 13.2(b) or Table 13.2(d) as appropriate.
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13.2.26 Multiple Vent and Connector Sizes Permitted.Where a Chapter 13 table permits more than one diameter of pipe to be used for aconnector or vent, all the permitted sizes shall be permitted to be used.
13.2.27 Interpolation.Interpolation shall be permitted in calculating capacities for vent dimensions that fallbetween table entries.
13.2.28 Extrapolation.Extrapolation beyond the table entries shall not be permitted.
13.2.29 Sizing Vents Not Covered by Tables.For vent heights lower than 6 ft (1.8 m) and higher than shown in the tables, engineeringmethods shall be used to calculate vent capacities.
13.2.30 Height Entries.Where the actual height of a vent falls between entries in the height column of theapplicable table in Table 13.2(a) through Table 13.2(i), either of the following shall beused:
(1) Interpolation
(2) The lower appliance input rating shown in the table entries, for FAN MAX Max andNAT MAX Max column values; and the higher appliance input rating for the FANMIN Min column values
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First Revision No. 86NFPA 542015 [ Section No. A.3.2.1 ]
A.3.2.1 Approved. The American Gas Association, American National Standards Institute, and the NationalFire Protection Association do not approve, inspect, or certify any installations,procedures, appliances, equipment, or materials; nor do they approve or evaluate testinglaboratories. In determining the acceptability of installations, procedures, appliances,equipment, or materials, the authority having jurisdiction may base acceptance oncompliance with NFPA or other appropriate standards. In the absence of suchstandards, said authority may require evidence of proper installation, procedure, or use.The authority having jurisdiction may also refer to the listings or labeling practices (see3.2.4) of an organization that is concerned with product evaluations and is thus in aposition to determine compliance with AGA, ANSI, CSA, NFPA, or appropriatestandards for the current production of listed items. Additional information regarding thecoordination of appliance design, construction, and maintenance can be found in AnnexB .
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CommitteeStatement:
The reference is being removed because this annex was deleted in anearlier revision cycle.
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First Revision No. 69NFPA 542015 [ Section No. A.7.13.4 ]
A.7.12.5 NFPA 780 , Standard for the Installation of Lightning Protection Systems , Section4.14, of NFPA 780 requires that all grounding media, including underground metallicpiping systems, be interconnected to provide a common ground potential. Theseunderground piping systems are not permitted to be substituted for grounding electrodesbut must be bonded to the lightning protection grounding system. Where galvaniccorrosion is of concern, the bond may be canmade via a spark gap or gas dischargetube.
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Submitter Full Name:Laura MontvilleOrganization: [ Not Specified ]Street Address:City:State:Zip:Submittal Date: Wed Oct 14 13:36:53 EDT 2015
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First Revision No. 46NFPA 542015 [ Section No. A.9.1.24 ]
A.9.1.24 Building envelope changes made under weatherization practices intended to reduce airinfiltration and contractor activities, such as the replacement of whole windows andexterior doors and extensive exterior modifications, will reduce the amount of infiltrationair and could impact the amount of combustion air that is available for existing applianceinstallations. Proper vent sizing and configuration is crucial to maintaining the requiredvent performance in structures that have reduced air infiltration.
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Submitter Full Name:Laura MontvilleOrganization: [ Not Specified ]Street Address:City:State:Zip:Submittal Date: Wed Sep 16 13:40:41 EDT 2015
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CommitteeStatement:
This annex text provides code users with an explanation on why the newrequirements in 9.1.24 were added.
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Public Input No. 125NFPA 542015 [Section No. A.9.1.24]
Public Input No. 124NFPA 542015 [New Section after A.9.1.6]
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First Revision No. 100NFPA 542016 [ Section No. A.10.6.1 ]
A.10.6.1 For information on decorative appliances for installation in vented fireplaces, see ANSIZ21.60/CGA CSA 2.26, Decorative Gas Appliances for Installation in SolidFuel BurningFireplaces.
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First Revision No. 101NFPA 542016 [ Section No. A.10.7.1 ]
A.10.7.1 For information on vented gas fireplaces, see ANSI Z21.50/CGA CSA 2.22, Vented GasFireplaces.
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This test can be done using one of the following methods:
(1) For Any Gas System. To an appropriate checkpoint, attach a manometer orpressure gauge between the inlet to the piping system and the first regulator in thepiping system, momentarily turn on the gas supply, and observe the gaugingdevice for pressure drop with the gas supply shut off. No discernible drop inpressure should occur during a period of 3 minutes.
(a) To an appropriate checkpoint, attach a manometer or pressure gauge betweenthe inlet to the piping system and the first regulator in the piping system,momentarily turn on the gas supply, and observe the gauging device forpressure drop with the gas supply shut off. No discernible drop in pressureshould occur during a period of 3 minutes.
(b) Attach an inline flow meter between the meter outlet and piping system inletprior to the first regulator in the piping system. Slowly turn on the gas supplyand observe the metering device. If flow does not drop to zero, leakage isindicated.
(2) For Gas Systems Using Undiluted LPGas System Preparation for Propane. Aleak check performed on an LPGas system being placed back in service can beperformed by using one of the following methods:
(a) Insert a pressure gauge between the container gas shutoff valve and the firststage regulator or integral twostage regulator in the system, admitting fullcontainer pressure to the system and then closing the container shutoff valve.Enough gas should then be released from the system to lower the pressuregauge reading by 10 psi (69 kPa). The system should then be allowed tostand for 3 minutes without showing an increase or a decrease in the pressuregauge reading.
(b) Insert a gauge/regulator test assembly between the container gas shutoffvalve and firststage regulator or integral twostage regulator in the system. Ifa gauge/regulator test assembly with an inches water column gauge isinserted, follow the test requirements in C.3(2)(c) below ; if a gauge/regulatortest assembly with a 30 psi gauge is inserted, follow the test requirements inC.3(2)(d).
(c) For systems with an integral twostage, one or more secondstage, or one ormore line pressure regulators serving appliances that receive gas at pressuresof 1∕2 psi (3.5 kPa) or less, insert a water manometer or inches water columngauge into the system downstream of the final stage regulator, pressurizingthe system with either fuel gas or air to a test pressure of 9 in. w.c. ± 1∕2 in.w.c. (2.2 kPa ± 0.1 kPa), and observing the device for a pressure change. Iffuel gas is used as a pressure source, it is necessary to pressurize thesystem to full operating pressure, close the container service valve, and thenrelease enough gas from the system through a range burner valve or othersuitable means to drop the system pressure to 9 in. w.c. ± 1∕2 in. w.c. (2.2 kPa± 0.1 kPa). This ensures that all regulators in the system upstream of the testpoint are unlocked and that a leak anywhere in the system is communicatedto the gauging device. The gauging device should indicate no loss or gain ofpressure for a period of 3 minutes.
(d) When testing a system that has a firststage regulator, or an integral twostage regulator, insert a 30 psi (207 kPa) pressure gauge on the downstreamside of the firststage regulator or at the intermediate pressure tap of anintegral twostage regulator, admitting normal operating pressure to thesystem and then closing the container valve. Enough gas should be releasedfrom the system to lower the pressure gauge reading by a minimum of 2 psi(13.8 kPa) so that the firststage regulator is unlocked. The system should beallowed to stand for 3 minutes without showing an increase or a decrease in
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(e) Insert a gauge/regulator test assembly on the downstream side of the firststage regulator or at the intermediate pressure tap of an integral two stageregulator. If a gauge/regulator test assembly with an inches water columngauge is inserted, follow the test requirements in C.3(2)(c) above ; if agauge/regulator test assembly with a 30 psi gauge is inserted, follow the testrequirements in C.3(2)(d) above .
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CommitteeStatement:
Recognition of a flow meter check is appropriate for this task. With thecomplexities and additional hardware now being associated with smart meters, lowflow meter testing accuracy has diminished. Billing accuracy however remainsconstant. Inline flow meters (rotameter) are very precise in determining leakage lessthan 1/8 cfh in natural gas piping systems. This gas meter/piping leak testingpractice is effective in determining minute gas leakage during gas piping pressuretests. Once the gas meter pressurizes the houseline piping system, and it isdetermined there is no leakage, the ball in the gauging device tube drops to zero,typically taking less than 30 seconds. The test is simple, accurate and fast. Thedevice is effective when used on standard delivery pressures as well as poundsdelivery systems. The flow meter passes a maximum of 3 cfh and therefore istypically used on smaller capacity meters (200cfh 800 cfh) due to the lowerhousepiping volumes. The device increases/improves safety when an uncapped oropen houseline is encountered due to the device restricting full line flow similar to anexcess flow valve. The maximum 3 cfh flow rate does however limit how quickly ahouseline will pressurize in larger volume housepiping systems extending testduration.
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First Revision No. 80NFPA 542015 [ Section No. C.4 ]
C.4 When Leakage Is Indicated.
If the meter test hand moves or a pressure drop on the gauge is noted leakage isindicated by a test device , all appliances and equipment or outlets supplied through thesystem should be examined to see whether they are shut off and do not leak. If they arefound to be tight, the piping system has a leak.
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Submitter Full Name:Laura MontvilleOrganization: [ Not Specified ]Street Address:City:State:Zip:Submittal Date: Thu Oct 15 10:44:20 PDT 2015
Committee Statement
Committee Statement: This is revised to incorporate the additional test method added to C.3.Response Message:
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In this case, the water heater and fanassisted furnace of Examples 5(a) and 5(b) are tobe commonvented into an exterior masonry chimney. The chimney height, claytilelinerdimensions, and vent connector heights and laterals are the same as in Example 5(b).This system is being installed in Charlotte, North Carolina. Does this exterior masonrychimney need to be relined? If so, what corrugated metallic liner size is recommended?What vent connector diameters are recommended? See Table F.2.3 and Figure F.2.4.
Solution
According to 13.2.22, Type B vent connectors are required to be used with exteriormasonry chimneys. Use Table 13.2(h) and Table 13.2(i) to size FAN+NAT commonventing installations involving Type B doublewall connectors into exterior masonrychimneys.
The local 99 percent winter design temperature needed to use Table 13.2(h) and Table13.2(i) can be found in ASHRAE Handbook — Fundamentals. For Charlotte, NorthCarolina, this design temperature is 19°F.
Chimney Liner Requirement. As in Example 5(b), use the 63 in.2 Internal Area columnsfor this size clay tile liner. Read down the 63 in.2 column of Table 13.2(h) to the 30 ftheight row to find that the Combined Appliance Maximum Input is 747,000 Btu/hr. Thecombined input rating of the appliances in this installation, 135,000 Btu/hr, is less thanthe maximum value, so this criterion is satisfied. Table 13.2(i), at a 19°F DesignTemperature, and at the same Vent Height and Internal Area used earlier, shows thatthe minimum allowable input rating of a spaceheating appliance is 470,000 Btu/hr. Thefurnace input rating of 100,000 Btu/hr is less than this minimum value. So this criterionis not satisfied, and an alternative venting design needs to be used, such as a Type Bvent shown in Example 5(a) or a listed chimney liner system shown in the remainder ofthe example.
According to 13.2.20, Table 13.2(a) or Table 13.2(b) is used for sizing corrugatedmetallic liners in masonry chimneys, with the maximum common vent capacitiesreduced by 20 percent. This example will be continued assuming Type B ventconnectors.
Water Heater Vent Connector Diameter. Using Table 13.2(a), Vent ConnectorCapacity, read down the Total Vent Height (H) column to 30 ft, and read across the 2 ftConnector Rise (R) row to the first Btu/hour rating in the NAT Max column that is equalto or greater than the water heater input rating. The table shows that a 3 in. ventconnector has a maximum capacity of 39,000 Btu/hr. Although this rating is greater thanthe water heater input rating, a 3 in. vent connector is prohibited by 13.2.22. A 4 in. ventconnector has a maximum input rating of 70,000 Btu/hr and is equal to the draft hoodoutlet diameter. A 4 in. vent connector is selected.
Furnace Vent Connector Diameter. Using Table 13.2(a), Vent Connector Capacity, readdown the Total Vent Height (H) column to 30 ft, and read across the 3 ft Connector Rise(R) row to the first Btu/hr rating in the FAN Max column that is equal to or greater thanthe furnace input rating. The 100,000 Btu/hr furnace in this example falls within thisrange, so a 4 in. connector is adequate.
Chimney Liner Diameter. The total input to the common vent is 135,000 Btu/hr. Usingthe Common Vent Capacity portion of Table 13.2(a), read down the Total Vent Height(H) column to 30 ft and across this row to find the smallest vent diameter in theFAN+NAT column that has a Btu/hr rating greater than 135,000 Btu/hr. The 4 in.common vent has a capacity of 138,000 Btu/hr. Reducing the maximum capacity by 20percent results in a maximum capacity for a 4 in. corrugated liner of 110,000 Btu/hr, lessthan the total input of 135,000 Btu/hr. So a larger liner is needed. The 5 in. common ventcapacity listed in Table 13.2(a) is 210,000 Btu/hr, and after reducing by 20 percent is168,000 Btu/hr. Therefore, a 5 in. corrugated metal liner should be used in this example.
SingleWall Connectors. Once it has been established that relining the chimney is
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necessary, Type B doublewall vent connectors are not specifically required. Thisexample could be redone using Table 13.2(b) for singlewall vent connectors. For thiscase, the vent connector and liner diameters would be the same as found for Type Bdoublewall connectors.
Figure F.2.4 Range of Winter Design Temperatures Used in Analyzing ExteriorMasonry Chimneys in the United States.
Supplemental Information
File Name DescriptionStaff_use_only_FR_89_F.2.4.docx Changes to caption
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Submitter Full Name:Laura MontvilleOrganization: National Fire Protection AssocStreet Address:City:State:Zip:Submittal Date: Fri Oct 30 10:12:42 EDT 2015
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CommitteeStatement:
The year and specific chapter/table reference are removed to ensure that thereference is correct and complete in this and future editions of the NFGC.
DELETED
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The following appliancespecific inspections are to be performed as part of a completeinspection. These inspections are performed either with the appliance in the off orstandby mode (indicated by “OFF”) or on an appliance that is operating (indicated by“ON”). The CO measurements are to be taken only after the appliance is determined tobe venting properly. The CO detector should be capable of calculating CO emissions inppm air free.
Table G.6 CO Thresholds
Appliance Threshold Limit
Central furnace (all categories) 400 ppm1 a air free2 b ,3 c
Floor furnace 400 ppm air freeGravity furnace 400 ppm air freeWall furnace (BIV) 200 ppm air freeWall furnace (direct vent) 400 ppm air freeVented room heater 200 ppm air freeVentfree room heater 200 ppm air freeBoilers (all categories) 400 ppm air freeWater heater 200 ppm air freeOven/Boiler Broiler 225 ppm as measuredTop burner 25 ppm as measured (per burner)Clothes dryer 400 ppm air freeRefrigerator 25 ppm as measuredGas log (gas fireplace) 25 ppm as measured in ventGas log (installed in woodburning fireplace) 400 ppm air free in firebox
Notes:
1 a Parts per million
2 b Airfree emission levels are based on a mathematical equation (involving carbonmonoxide and oxygen or carbon dioxide readings) to convert an actual diluted flue gascarbon monoxide testing sample to an undiluted airfree flue gas carbon monoxide levelutilized in the appliance certification standards. For natural gas or propane, using asmeasured CO ppm and O2 percentage:
[G.6a]
where:COAFppm=Carbon monoxide, airfree ppm
COppm=Asmeasured combustion gas carbon monoxideO2=Percentage of oxygen in combustion gas, as a percentage
3 c An alternate method of calculating the CO airfree when access to an oxygen meteris not available:
[G.6b]
2/18/2016 National Fire Protection Association Report
First Revision No. 85NFPA 542015 [ Section No. K.1.2 ]
K.1.2 Other Publications.K.1.2.1 API Publications.American Petroleum Institute, 1220 L Street, N.W., Washington, DC 200054070.
API STD 1104, Welding Pipelines and Related Facilities,2008 (Reaffirmed 2010) 2013 .
K.1.2.2 ASHRAE Publications.American Society of Heating, Refrigerating and Air Conditioning Engineers, Inc., 1791Tullie Circle, N.E., Atlanta, GA 303292305, (404) 6368400, www.ashrae.org.
ASHRAE Handbook — Fundamentals,2009 2013 .
ASHRAE Handbook — HVAC Systems and Equipment,2012.
K.1.2.3 ASME Publications.American Society of Mechanical Engineers, Three Two Park Avenue, New York, NY100165990, (800) 8432763, www.asme.org.
Boiler and Pressure Vessel Code, Section IX and Section IV, 2010 2015 .
ASTM A53, Standard Specification for Pipe, Steel, Black and HotDipped, ZincCoated,Welded and Seamless, 2012.
ASTM A106, Standard Specification for Seamless Carbon Steel Pipe for HighTemperature Service, 2011 2014 .
ASTM A254, Standard Specification for CopperBrazed Steel Tubing, 1997 (Reaffirmed2007) 2012 .
ASTM B88, Standard Specification for Seamless Copper Water Tube, 2009 2014 .
ASTM B210, Standard Specification for Aluminum and AluminumAlloy Drawn SeamlessTubes, 2004 2012 .
ASTM B241, Standard Specification for Aluminum and AluminumAlloy Seamless Pipeand Seamless Extruded Tube, 2010 2012 .
ASTM B280, Standard Specification for Seamless Copper Tube for AirConditioning andRefrigeration Field Service, 2008 2013 .
ASTM D2385, Test Method for Hydrogen Sulfide and Mercaptan Sulfur in Natural Gas(Cadmium Sulfate — Iodometric Titration Method), 1981 (Reaffirmed 1990) (withdrawn1995) .
ASTM D2420, Method of Test for Hydrogen Sulfide in Liquefied Petroleum (LP) Gases(Lead Acetate Method), 2007 2013 .
ASTM D2513, Standard Specification for Polyethylene (PE) Gas Pressure Pipe, Tubing,and Fittings, 2012 2014 .
ASTM D2513, Standard Specification for Thermoplastic Gas Pressure Pipe, Tubing, andFittings, 2009.
ASTM F1973, Standard Specification for Factory Assembled Anodeless Risers andTransition Fittings in Polyethylene (PE) and Polyamide 11 (PA11) and Polyamide 12(PA12) Fuel Gas Distribution Systems, 2008 2013 .
ASTM F2509, Standard Specification for FieldAssembled Anodeless Riser Kits for Useon Outside Diameter Controlled Polyethylene Gas Distribution Pipe and Tubing, 2006(Reaffirmed 2012 2012 ) .
K.1.2.6 CSA Group America Publications.Canadian Standards Association CSA Group , 8501 East Pleasant Valley Road,Cleveland, OH 441315575, (216) 5244990, www.csaamerica csagroup .org.
ANSI LC 1/CSA 6.26, Fuel Gas Piping Systems Using Corrugated Stainless SteelTubing (CSST), 2005 2014 .
ANSI LC 4, PressConnect Copper and Copper Alloy Metallic Fittings for Use in FuelGas Distribution Systems, 2007 2012 .
ANSI Z21.50/CSA 2.22, Vented Gas Fireplaces, 2007 2014 .
ANSI Z21.60/CGA CSA 2.26, Decorative Gas Appliances for Installation in SolidFuelBurning Fireplaces, 2003 (Reaffirmed 2009) 2012 .
K.1.2.7 NACE Publications.NACE International, 1440 South Creek Drive 15835 Park Ten Place , Houston, TX770844906, www.nace.org.
NACE SP 0169, Control of External Corrosion on Underground or Submerged MetallicPiping Systems, 1996 2013 .
K.1.2.8 UL Publications.Underwriters Laboratories Inc., 333 Pfingsten Road, Northbrook, IL 600622096,www.ul.com.
ANSI/UL 651, Schedule 40 and 80 Rigid PVC Conduit and Fittings , 2011, reapproved2014.
K.1.2.9 U.S. Government Publications.U.S. Government Printing Publishing Office, Washington, DC 20402.
Responding to Residential Carbon Monoxide Incidents, Guidelines for Fire and OtherEmergency Response Personnel, U.S. Consumer Product Safety Commission, July 23,2002.
K.1.2.10 Other Publications.Piping Handbook, 2000, New York: McGrawHill Book Company.
Project Number 21323, Validation of Installation Methods for CSST Gas Piping toMitigate Indirect Lightning Related Damage , Gas Technology Institute 2015.
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Submitter Full Name:Laura MontvilleOrganization: [ Not Specified ]Street Address:City:State:Zip:Submittal Date: Thu Oct 15 12:02:41 PDT 2015
Committee Statement
Committee Statement: References are updated to their most recent editions.Response Message:
Public Input No. 4NFPA 542015 [Section No. K.1.2]
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First Revision No. 96NFPA 542015 [ Section No. K.2 ]
K.2 Informational References.The following documents or portions thereof are listed here as informational resourcesonly. They are not a part of the requirements of this document.
K.2.1 NFPA Publications.National Fire Protection Association, 1 Batterymarch Park, Quincy, MA 021697471.
NFPA 30, Flammable and Combustible Liquids Code, 2012 2018 edition.
ANSI/CSA America FC 1, Stationary Fuel Cell Power Systems Technologies — Part 3100: Stationary fuel cell power systems — Safety , 2004 2014 .
ANSI/CSA NGV 2, American National Standard for Natural Gas Vehicle FuelContainers, 2007.
ANSI/IAS LC 2A, Agricultural Heaters, 1998.
ANSI/IAS U.S. LC 2, Direct GasFired Circulating Heaters for Agricultural AnimalConfinement Buildings, 1996 (reaffirmed 2015) .
ANSI Z21.1, Household Cooking Gas Appliances,2010.
ANSI Z21.5.1/CSA 7.1, Gas Clothes Dryers — Volume I — Type 1 Clothes Dryers,2006 (Reaffirmed 2012) 2015 .
ANSI Z21.5.2/CSA 7.2, Gas Clothes Dryers — Volume II — Type 2 Clothes Dryers,2005 (Reaffirmed 2011) 2013 .
ANSI Z21.10.1/CSA 4.1, Gas Water Heaters — Volume I — Storage Water Heaterswith Input Ratings of 75,000 Btu per Hour or Less, 2009 2014 .
ANSI Z21.10.3/CSA 4.3, Gas Water Heaters — Volume III — Storage Water Heaterswith Input Ratings above 75,000 Btu per Hour, Circulating and Instantaneous,2009 2015 .
ANSI Z21.19/CSA 1.4, Refrigerators Using Gas Fuel, 2002 (Reaffirmed 2012) 2014 .
ANSI Z21.20/CSA C22.2 — No. 199 6073025 , Automatic Electrical Controls forHousehold and Similar Use — Part 2: Particular Requirements for Automatic BurnerIgnition Systems and Components, 2007 (Reffirmed 2011) 2014 .
ANSI Z21.21/CGA CSA 6.5, Automatic Valves for Gas Appliances, 2005 2015 .
ANSI Z21.22/CSA 4.4, Relief Valves for Hot Water Supply Systems, 1999 (Reaffirmed2008) 2015 .
ANSI Z21.23, Gas Appliance Thermostats, 2010 (reaffirmed 2015) .
ANSI Z21.24/CSA 6.10, Metal Connectors for Gas Appliances, 2006 2015 .
ANSI Z21.35/CGA CSA 6.8, Pilot Gas Filters, 2005 (reaffirmed 2014) .
IAS U.S. 7, Requirements for Gas Convenience Outlets and Optional Enclosures, 1990.
IAS U.S. 9, Requirements for GasFired, Desiccant Type Dehumidifiers and Central AirConditioners, 1990.
IAS U.S. 42, Requirement for Gas Fired Commercial Dishwashers, 1992.
NACE SP0169, Control of External Corrosion on Underground or Submerged MetallicPiping Systems, 2007.
K.2.3 MSS Publications.Manufacturers Standardization Society of the Valve and Fittings Industry, 127 ParkStreet, NE, Vienna, VA 221806671, www.msshq.com.
MSS SP6, Standard Finishes for Contact Faces of Pipe Flanges and ConnectingEndFlanges of Valves and Fittings, 2007 2012 .
ANSI/MSS SP58, Pipe Hangers and Supports — Materials, Design and Manufacture,2002 2009 .
K.2.4 SAE Publications.Society of Automotive Engineers, 400 Commonwealth Drive, Warrendale, PA 15096,www.sae.org.
SAE J533, Flares for Tubing, 2007.
K.2.5 UL Publications.Underwriters Laboratories Inc., 333 Pfingsten Road, Northbrook, IL 600622096,www.ul.com.
ANSI/UL 103, Chimneys, FactoryBuilt, Residential Type and Building HeatingAppliances, 2010, reapproved 2012 .
ANSI/UL 441, Gas Vents, 2010, reapproved 2014 .
ANSI/UL 641, Type L LowTemperature Venting Systems, 2010, reapproved 2013 .
ANSI/UL 1738, Venting Systems for Gas Burning Appliances, Categories II, III and IV,1993 2010 , Revised 2006 reapproved 2014 .