NB Code Changes - NBBI

12-1579 CF-1000 Requirements for the Use of Variable Frequency Drives(VFD) - AbridgedCF-1010 VFD used on Combustion Air FanBoiler units that use a VFD to vary the speed of the combustion air fan shall comply with the following:a) Purge - shall be as specified in Tables CF-2, CF-3 and/or CF-5, andb) If used to modulate combustion air in response to changing fuel inputs, the VFD shall respond to the combustion controlsystem as part of the fuel-air-ratio control (FARC) system, andc) An independent feedback signal shall be used to verify the fan or blower speed.d) The independent feedback signal and the FARC system shall be labeled and listed for the VFD application by a nationallyrecognized testing agency.e) Direct Coupled arrangements may use motor speed as a measure of the fan/blower speed.f)Errors between the directed fan or blower speed signal and the independent feedback signal of actual speed or air flowshall result in a safety shutdown.g) VFD’s shall not be used in applications where the combustion air fan is used to operate equipment such as an oil pump orthe atomizing air compressor.Jason Safarz 2020-10-08Streng vertraulich! Alle Rechte bei Karl Dungs GmbH & Co. KG, auch für den Fall von Schutzrechtsanmeldungen. Jede Verfügungsbefugnis, wie Kopier- und Weitergaberecht, bei uns.Strictly confidential! The company Karl Dungs GmbH & Co. KG is the exclusive holder of all rights, also in case of patent application. All rights reserved, including copy and circulation.14

12-1579 CF-1000 Requirements for the Use of Variable Frequency Drives(VFD)Exceptions:1) CF-1000 does not apply to modulating controls that are certified as part of boiler units that are labeled andlisted by a nationally recognized testing agency or other organization that is acceptable to the authorityhaving jurisdiction.2) CF-1000 does not apply to ratio-regulator controls.3) CF-1000 does not apply to VFD applications that do not vary fan or blower speed in relation to firing rate orchanges in firing rate.New Definitions:Atomizing Air Compressor, Combustion Control System, Direct Coupled Fan/Blower, Fuel-Air-Ratio ControlSystem, Independent Feedback Signal, Ratio-Regulator Control, Variable Frequency Drive (VFD), DirectedFan or Blower Speed SignalJason Safarz 2020-10-08Streng vertraulich! Alle Rechte bei Karl Dungs GmbH & Co. KG, auch für den Fall von Schutzrechtsanmeldungen. Jede Verfügungsbefugnis, wie Kopier- und Weitergaberecht, bei uns.Strictly confidential! The company Karl Dungs GmbH & Co. KG is the exclusive holder of all rights, also in case of patent application. All rights reserved, including copy and circulation.15

11-1255 CF-195 and CF-540 Automatic Stack Dampers - AbridgedNew DefinitionAutomatic stack damper. An automatically operated damper or shutter that is located downstream of the combustion chamberand in the flue duct (boiler outlet, breeching, stack or chimney) with a drive mechanism that can open, close or modulate thedamper in response to boiler operation or stack draft variations.CF-195 Automatic Stack Dampers (Gas Fired)When an automatic stack damper is used, the following criteria shall apply:a) The automatic stack damper shall be labeled and listed for the intended application by a nationally recognized testingagency.b) A means shall be provided to open such automatic stack damper to the high fire position before each light-off cycle isinitiated, and before the pre-purge period begins.c) If a post-purge period is required or implemented, a means shall be provided to open the automatic stack damper to thehigh fire position or maintain the automatic stack damper in the previous firing position.CF-540 Automatic Stack Dampers (Oil-Fired)Same language as CF-195Jason Safarz 2020-10-08Streng vertraulich! Alle Rechte bei Karl Dungs GmbH & Co. KG, auch für den Fall von Schutzrechtsanmeldungen. Jede Verfügungsbefugnis, wie Kopier- und Weitergaberecht, bei uns.Strictly confidential! The company Karl Dungs GmbH & Co. KG is the exclusive holder of all rights, also in case of patent application. All rights reserved, including copy and circulation.16

16-2379 CE-110 (b) (3)CE-110 Electrical RequirementsCE-110 General(b) A manually operated remote shutdown switch or circuit breaker shall belocated just outside the boiler room door and marked for easyidentification.(1) Consideration should be given .(2) Activation of the remote shutdown switch or circuit breaker shallimmediately shutoff the fuel or energy supply.(3) For installations not in a boiler or equipment room, such as outdoors atground level or roof top, the manually operated remote shutdownswitch(es) or circuit breaker(s) shall be accessible and located at a safedistance as defined by the authority having jurisdiction.Jason Safarz 2020-10-08Streng vertraulich! Alle Rechte bei Karl Dungs GmbH & Co. KG, auch für den Fall von Schutzrechtsanmeldungen. Jede Verfügungsbefugnis, wie Kopier- und Weitergaberecht, bei uns.Strictly confidential! The company Karl Dungs GmbH & Co. KG is the exclusive holder of all rights, also in case of patent application. All rights reserved, including copy and circulation.17

17-2617 and 08-643 CF-440 and CG-510CG-440 Operational TestingThe manufacturer and/or the installing contractor, as applicable, shall make a testing report available as required by sections CG-441, CG-442,CG-443, CG-444, and CG-510.CG-441 Shop-Assembled Boilers — New Installations(a) The manufacturer of shop-assembled boilers Manufacturers shall test and report per CG-510(a) on the operation of control systems andsafety devices installed in accordance with this Standard. Test conditions shall be as close to specified field conditions as feasible prior toshipment from the manufacturer’s facility. Where production makes it infeasible to check each shop-assembled boiler unit individually prior toshipment, the manufacturer shall follow a written inspection and quality control procedure by which the intent of this paragraph will be met.(b) The installing contractor manufacturer’s representative or installing contractor shall, as part of commissioning the unit, test and report perCG- 510(ba) on the operation of all control systems and safety devices installed in accordance with this Standard prior to release to theowner/user.CG-442 Shop-Assembled Boilers — Existing InstallationsAfter replacing burners or controls, installing audible or visual alarms, status, or control wiring to primary flame safety controls, or after the boilerunit is moved from its original installation location, the installing contractor shall test and report per CG-510(a) on the operation of all controlsystems and safety devices installed in accordance with this Standard prior to release to the owner/user.Jason Safarz 2020-10-08Streng vertraulich! Alle Rechte bei Karl Dungs GmbH & Co. KG, auch für den Fall von Schutzrechtsanmeldungen. Jede Verfügungsbefugnis, wie Kopier- und Weitergaberecht, bei uns.Strictly confidential! The company Karl Dungs GmbH & Co. KG is the exclusive holder of all rights, also in case of patent application. All rights reserved, including copy and circulation.18

17-2617 and 08-643 CF-440 and CG-510CG-440 Operational Testing Cont.CG-443 Field-Assembled Boilers — New InstallationsDuring commissioning of a new installation, manufacturers, their representatives, or installing contractors shall test and report per CG-510(b),as applicable, on the operation of all control systems and safety devices installed in accordance with this Standard prior to release to theowner/user.CG-444 Field-Assembled Boilers — Existing InstallationsAfter replacing burners or controls or after the boiler unit is moved from its original installation location, the installing contractor shall test andreport per CG-510(b) on the operation of all control systems and safety devices installed in accordance with this Standard prior to release tothe owner/user.CG-500 CERTIFICATION AND REPORTINGCG-510 Certification and Reporting(a) Manufacturers and/or installing contractors, as applicable, of shop-assembled boiler units covered by this Standard shall maintain a reportfor each boiler unit or on for each category (type, size, or model) for of boiler unitsunit. For boiler units less than or equal to 400,000 Btu/hr (117kW) for gas, or less than or equal to 3 gph (11.4 L/h) for oil, a report shall be maintained on each category (type, size, or model).(b) Manufacturers and/or installing contractors, as applicable, of field-assembled boiler units covered by this Standard shall maintain a reportfor each boiler unit or for each category (type, size, or model) for each boiler unit.Jason Safarz 2020-10-08Streng vertraulich! Alle Rechte bei Karl Dungs GmbH & Co. KG, auch für den Fall von Schutzrechtsanmeldungen. Jede Verfügungsbefugnis, wie Kopier- und Weitergaberecht, bei uns.Strictly confidential! The company Karl Dungs GmbH & Co. KG is the exclusive holder of all rights, also in case of patent application. All rights reserved, including copy and circulation.19

2022 CSD-1 Changes – Minor Edits 18-1288 (CW-120 & CW-140) AHJ Acceptability for Blowoff Location– Added “acceptable to AHJ” language 15-2910 (CW-140) Miniature Boiler Clarification– 1 LWCO device for high-pressure miniature steam boilers 18-1283 SI Conversions & Significant Figures– i.e. 1 100kPa to 1.1 MPa– 1.86 m2 to 1.9 m2 Definition Changes: 16-2380, 15-2880, 16-1732, 17-2618Jason Safarz 2020-10-08SEE APPENDIXStreng vertraulich! Alle Rechte bei Karl Dungs GmbH & Co. KG, auch für den Fall von Schutzrechtsanmeldungen. Jede Verfügungsbefugnis, wie Kopier- und Weitergaberecht, bei uns.Strictly confidential! The company Karl Dungs GmbH & Co. KG is the exclusive holder of all rights, also in case of patent application. All rights reserved, including copy and circulation.20

PART 3PART 3NFPA 85 OverviewJason Safarz 2020-10-08Streng vertraulich! Alle Rechte bei Karl Dungs GmbH & Co. KG, auch für den Fall von Schutzrechtsanmeldungen. Jede Verfügungsbefugnis, wie Kopier- und Weitergaberecht, bei uns.Strictly confidential! The company Karl Dungs GmbH & Co. KG is the exclusive holder of all rights, also in case of patent application. All rights reserved, including copy and circulation.21

NFPA 85 Boiler and Combustion Systems Hazards CodeCurrent: 2019 EditionEffective Date: November 25, 2018Future: 2023 Edition(Fall 2022 Revision Cycle)Scope:Applies to single and multiple burner boilers, stokers, and atmospheric fluidized bed boilers withan input of 12.5 million Btu/hr or greater. Pulverized fuel systems at any input. Fired/unfiredsteam generators used to recover heat from combustion turbines (HRSGs) at any input.Jason Safarz 2020-10-08Streng vertraulich! Alle Rechte bei Karl Dungs GmbH & Co. KG, auch für den Fall von Schutzrechtsanmeldungen. Jede Verfügungsbefugnis, wie Kopier- und Weitergaberecht, bei uns.Strictly confidential! The company Karl Dungs GmbH & Co. KG is the exclusive holder of all rights, also in case of patent application. All rights reserved, including copy and circulation.22

NFPA 85 Scope - IncludedFuels Include (Sec. 1.1.4 through 1.19) Natural gas Other gas w/ calorific and other characteristics similar to natural gas. Fuel oil Simultaneous firing of gas and oil Pulverized coal Wood Refuse-derived fuel (RDF) Municipal solid waste (MSW) Other solid fuelsExceptions (1.1.3)NFPA 85 does not cover process heaters used in chemical and petroleum manufacture in which the steamgeneration is incidental to the operation of a processing system.Jason Safarz 2020-10-08Streng vertraulich! Alle Rechte bei Karl Dungs GmbH & Co. KG, auch für den Fall von Schutzrechtsanmeldungen. Jede Verfügungsbefugnis, wie Kopier- und Weitergaberecht, bei uns.Strictly confidential! The company Karl Dungs GmbH & Co. KG is the exclusive holder of all rights, also in case of patent application. All rights reserved, including copy and circulation.23

NFPA 85 Scope - Included All boilers (packaged and field assembled) greater than or equal to 12,500,000 Btu/hr input. Each Chapter addresses a specific style of boiler:–CH 4 – Fundamentals (applies to all unless otherwise noted)–CH 5 – Single Burner–CH 6 – Multiple Burner–CH 7 – Atmospheric Fluidized Bed–CH 8 – Heat Recovery Steam Generators (HRSGs)–CH 9 – Pulverized Fuel Systems–CH 10 – StokersJason Safarz 2020-10-08Streng vertraulich! Alle Rechte bei Karl Dungs GmbH & Co. KG, auch für den Fall von Schutzrechtsanmeldungen. Jede Verfügungsbefugnis, wie Kopier- und Weitergaberecht, bei uns.Strictly confidential! The company Karl Dungs GmbH & Co. KG is the exclusive holder of all rights, also in case of patent application. All rights reserved, including copy and circulation.24

PART 4PART 4NFPA 87 Board Approved ChangesJason Safarz 2020-10-08Streng vertraulich! Alle Rechte bei Karl Dungs GmbH & Co. KG, auch für den Fall von Schutzrechtsanmeldungen. Jede Verfügungsbefugnis, wie Kopier- und Weitergaberecht, bei uns.Strictly confidential! The company Karl Dungs GmbH & Co. KG is the exclusive holder of all rights, also in case of patent application. All rights reserved, including copy and circulation.25

NFPA 87 Standard for Fluid HeatersCurrent: 2018 EditionEffective Date:August 21, 2017First year as a StandardFuture: 2021 EditionRecent Editions: 2011 First Edition, based upon NFPA 86 (Recommended Practice)2015 (Recommended Practice)Scope:Applies to fluid heaters and related equipment with an input exceeding 150,000 Btu/hr. Includes thermaland process fluid heaters, new and altered/extended existing equipment, where: Fluid is flowing under pressure Fluid is indirectly heated Release of energy from combustion of an electric source occurs within unitJason Safarz 2020-10-08Streng vertraulich! Alle Rechte bei Karl Dungs GmbH & Co. KG, auch für den Fall von Schutzrechtsanmeldungen. Jede Verfügungsbefugnis, wie Kopier- und Weitergaberecht, bei uns.Strictly confidential! The company Karl Dungs GmbH & Co. KG is the exclusive holder of all rights, also in case of patent application. All rights reserved, including copy and circulation.26

NFPA 87 Standard for Fluid Heaters - ExclusionsExclusions:1. Boilers covered by ASME CSD-1 and NFPA 852. NFPA 86 Class A, B, C, and D ovens and furnaces3. Fired heaters and petroleum refineries and petrochemical facilities designed: API STP 560 – Fluid Heaters for General Refinery Services, API RP 556 – Instrumentation and Control Systems for Fired Heaters and SteamGenerators, and API RP 2001 – Fire Protection in Refineries4. Fired heaters commonly called reformer furnaces or cracking furnaces in petrochemicaland chemical industries5. Occupies space or comfort heating air6. LP-Gas vaporizers designed and installed to NFPA 587. Listed equipment with heating system total input not exceeding 150,000 Btu/hr (44 kW)Jason Safarz 2020-10-08Streng vertraulich! Alle Rechte bei Karl Dungs GmbH & Co. KG, auch für den Fall von Schutzrechtsanmeldungen. Jede Verfügungsbefugnis, wie Kopier- und Weitergaberecht, bei uns.Strictly confidential! The company Karl Dungs GmbH & Co. KG is the exclusive holder of all rights, also in case of patent application. All rights reserved, including copy and circulation.27

SR-12Added terms related to the safeguardingof solid fuel combustion and provideclarification and standardization formanufacturers of solid-fuel-fired fluidheaters.Jason Safarz 2020-10-08Streng vertraulich! Alle Rechte bei Karl Dungs GmbH & Co. KG, auch für den Fall von Schutzrechtsanmeldungen. Jede Verfügungsbefugnis, wie Kopier- und Weitergaberecht, bei uns.Strictly confidential! The company Karl Dungs GmbH & Co. KG is the exclusive holder of all rights, also in case of patent application. All rights reserved, including copy and circulation.28

SR-16The first draft rev created unintendedconsequences (e.g., absence of parallellanguage for oil fire burners to CSD-1, logicto the presence of POC on SSOVs). Theresult was a significant increase in the Btu/hrcapacity threshold for SSOVs including pilotsystems as compared to those in theexisting 2018 edition.Jason Safarz 2020-10-08Streng vertraulich! Alle Rechte bei Karl Dungs GmbH & Co. KG, auch für den Fall von Schutzrechtsanmeldungen. Jede Verfügungsbefugnis, wie Kopier- und Weitergaberecht, bei uns.Strictly confidential! The company Karl Dungs GmbH & Co. KG is the exclusive holder of all rights, also in case of patent application. All rights reserved, including copy and circulation.29

2021 NFPA 87 – Minor EditsSR-8Ball valves are not acceptable due to ability totrap fluid when closed (thermal expansion risk)SR-10Clarification on conflicting req’s between Chapter 10 and Chapters 1-9, 11SR-11Terminology change from “oven” to “combustion chamber”Jason Safarz 2020-10-08Streng vertraulich! Alle Rechte bei Karl Dungs GmbH & Co. KG, auch für den Fall von Schutzrechtsanmeldungen. Jede Verfügungsbefugnis, wie Kopier- und Weitergaberecht, bei uns.Strictly confidential! The company Karl Dungs GmbH & Co. KG is the exclusive holder of all rights, also in case of patent application. All rights reserved, including copy and circulation.

2021 NFPA 87 – Minor Edits Cont.SR-15New definition for “blanket gas”SR-17Piping materials and joining methods alignment with NFPA 54 under 6.2.6.Jason Safarz 2020-10-08Streng vertraulich! Alle Rechte bei Karl Dungs GmbH & Co. KG, auch für den Fall von Schutzrechtsanmeldungen. Jede Verfügungsbefugnis, wie Kopier- und Weitergaberecht, bei uns.Strictly confidential! The company Karl Dungs GmbH & Co. KG is the exclusive holder of all rights, also in case of patent application. All rights reserved, including copy and circulation.

ASME CSD-1 vs. NFPA 87 – ConflictNFPA 87 8.2.1 The requirements of Chapter 8 shall not apply to thermal fluid heaters with fuel input ratingsless than 12,500,000 Btu/hr (3.7 MW) that conform with ASME CSD-1, Controls and Safety Devices forAutomatically Fired Boilers, or with UL 795, Standard for Commercial-Industrial Gas Heating Equipment.Chapter 8 is the heating system safety equipment and application. Several items are not covered by CSD-1including PLC/Safety PLC’s, software, stack excess temperature, and fluid excess temperature.Take-Aways: ASME CSD-1 service limitations are for automatically fired boilers (steamand water) and burner assemblies and burners field-installed isautomatically fired boilers. By definition a thermal fluid heater is not a boiler and as such is notcovered by ASME CSD-1Jason Safarz 2020-10-08Streng vertraulich! Alle Rechte bei Karl Dungs GmbH & Co. KG, auch für den Fall von Schutzrechtsanmeldungen. Jede Verfügungsbefugnis, wie Kopier- und Weitergaberecht, bei uns.Strictly confidential! The company Karl Dungs GmbH & Co. KG is the exclusive holder of all rights, also in case of patent application. All rights reserved, including copy and circulation.

RESOURCES AVAILABLE:ASME CSD-1 ePages.cfm?Committee L01400000NFPA Website: nfpa.org85 ode 8587 ode 87Jason Safarz 2020-10-08Streng vertraulich! Alle Rechte bei Karl Dungs GmbH & Co. KG, auch für den Fall von Sch

ASME CSD-1. 2018. Controls and Safety Devices for Automatically Fired Boilers - Input less than 12,500,000 Btu/hr(3,663 kW) NFPA 85. 2019. Boiler and Combustion Systems Hazards Code - Input of 12,500,000 Btu/hr(3.7 MW) or greater. NFPA 87. 2018. Recommended Practice for Fluid Heaters -