1、ASME CSD-1 INTERPRETATIONSASME CSD-1INTERPRETATIONS VOLUME 15Replies to Technical InquiriesJanuary 2009 Through December 2011FOREWORDThis publication includes written replies issued in the year indicated by the secretary, speakingfor the ASME CSDAFB Committee, to inquiries concerning interpretations
2、 of technical aspectsof ASME CSD-1.These replies are taken verbatim from the original replies except for a few typographicalcorrections and some minor editorial corrections made for the purpose of improved clarity. Insome few instances, a review of the interpretation may reveal a need for correction
3、s of a technicalnature; in these cases, a corrected interpretation will immediately follow the original reply.These interpretations were prepared in accordance with the accredited ASME procedures.ASME procedures provide for reconsideration of these interpretations when or if additionalinformation is
4、 available that the inquirer believes might affect the interpretation. Further, personsaggrieved by this interpretation may appeal to the cognizant ASME committee or subcommittee.ASME does not “approve,” “certify,” “rate,” or “endorse” any item, construction, proprietarydevice, or activity.I-1ASME C
5、SD-1 INTERPRETATIONSInterpretation: 12-01Subject: CSD-12006, CG-210Date Issued: January 26, 2009Question (1): In accordance with CSD-12006, is metallic tubing allowed for automatic ventlines, gas vent lines, or bleed lines?Reply (1): CSD-12006 does not specify materials for automatic vent lines, gas
6、 vent lines, orbleed lines (see CG-210).Question (2): In accordance with CSD-12006, is nonmetallic tubing allowed for automatic ventlines, gas vent lines, or bleed lines?Reply (2): CSD-12006 does not specify materials for automatic vent lines, gas vent lines, orbleed lines (see CG-210).Interpretatio
7、n: 12-02Subject: CSD-12006, CW-130Date Issued: July 10, 2009Question: For a coil-type boiler or a water tube boiler requiring forced circulation to preventoverheating and failure of the tubes or coils and having no definitive waterline, if a flow switchis installed with the aim of preventing overhea
8、ting by cutting off fuel, does a low-water cutoffswitch then become nonmandatory?Reply: Yes, see CW-210.Interpretation: 12-03Subject: CSD-12006, CW-410Date Issued: July 10, 2009Question: Does CSD-12006 permit the use of a manually reset temperature limit control deviceto satisfy the requirements of
9、CW-410, as long as the device is listed and labeled by a nationallyrecognized testing laboratory as complying with UL 353, Standard for Limit Controls?Reply: Yes.Interpretation: 12-04Subject: CSD-12006, Shutoff ValveDate Issued: July 10, 2009Question: Is a manual shutoff valve required downstream of
10、 the safety shutoff valve if a burner/boiler manufacturer does not require this manual shutoff valve for leak tests, operational tests,or maintenance?Reply: Yes.I-2ASME CSD-1 INTERPRETATIONSInterpretation: 12-05Subject: CSD-11998 With 1999 Addenda, Scope and Nonmandatory Appendix CDate Issued: July
11、13, 2009Question (1): Do boilers with fuel input ratings less than or equal to 400,000 Btu/hr fall underthe scope of CSD-1?Reply (1): Yes.Question (2): Are shop assembled boilers with fuel input ratings less than or equal to400,000 Btu/hr and certified as complying with ANSI Z21.13/CSA 4.9 required
12、to be suppliedwith a data report similar in nature to that described in Nonmandatory Appendix C?Reply (2): No.Question (3): Are shop assembled boilers with fuel input ratings less than or equal to400,000 Btu/hr but not certified as complying with ANSI Z21.13/CSA 4.9 required to be suppliedwith a dat
13、a report similar in nature to that described in Nonmandatory Appendix C?Reply (3): Yes.Question (4): Are field assembled boilers with fuel input ratings less than or equal to400,000 Btu/hr and certified as complying with ANSI Z21.13/CSA 4.9 required to be suppliedwith a data report similar in nature
14、 to that described in Nonmandatory Appendix C?Reply (4): No.Question (5): Are field assembled boilers with fuel input ratings less than or equal to400,000 Btu/hr and not certified as complying with ANSI Z21.13/CSA 4.9 required to be suppliedwith a data report similar in nature to that described in N
15、onmandatory Appendix C?Reply (5): This is not addressed by the Standard.Interpretation: 12-06Subject: CSD-12009, CW-110Date Issued: December 4, 2009Question: Does CW-110(a) require a stand-alone feeder control that is not used to cut off thefuel supply and is not part of a combined feeder/cut-off de
16、vice to conform to UL 353, Standardfor Limit Controls?Reply: No.I-3ASME CSD-1 INTERPRETATIONSInterpretation: 12-07Subject: CSD-12009, Part CW and Vacuum BoilersDate Issued: January 6, 2011Question: Per ASME Boiler and Pressure Vessel Code, Section IV, Mandatory Appendix 5,vacuum boilers that have(a)
17、 a pressure control that interrupts the burner operation in response to boiler pressure, andis set at 2.5 psig vacuum(b) two temperature controls responsive to boiler temperature that interrupt burner operation,where one operates at a temperature below 210F and the other at a temperature not exceedi
18、ng210F with no automatic recycle(c) a properly sized safety valve with no test lever set at a maximum pressure of 7.1 psig andare exempt from having a gage glass, water column, a second pressure-control, and a low-watercutoffAre such boilers also exempt from the requirements of CSD-1, Part CW?Reply:
19、 Yes. The requirements of Part CW in the 2009 edition of CSD-1 do not address vacuumboilers. CSD-1 action item 10-902 has been opened to address this.Interpretation: 12-08Subject: CSD-12009, CF-220Date Issued: December 5, 2011Question: Does CF-220 specifically require a combustion air switch to init
20、iate safety shutdownand lockout, or recycle, as applicable upon loss of combustion air?Reply: No, provided the intent of CF-220 is met.I-4ASME CSD-1 INTERPRETATIONSNUMERICAL AND SUBJECT INDEXInquiry No. Date Subject Edition Reference Vol.88-1 6/28/88 Gas train 1982 CF-180, Fig. CF-1 . . .88-2 4/5/89
21、 Periodic testing All CM-100 189-1 9/20/89 Modular boilers 1988 CW-120, CR 289-2 9/20/89 Safety shutdown 1984 CF-220, Table CF-1 289-3 9/20/89 Safety shutdown 1984 CW-120, CR 289-4 4/5/90 Safety shutdown 1988 CW-210, CW-110(e) 289-5 4/5/90 Testing 1988 CG-500, CG-420 290-1 2/12/90 Effective date Any
22、 Issue date, Appendix A 290-2 4/5/90 Rebuilt controls 1988 CF-310 290-3 4/5/90 Relief valve 1988 CW-520, Appendix A 290-4 10/12/90 Lockout 1988, 1989 CF-330, CF-530, Definitions 390-5 10/12/90 Vents 1988, 1989 CF-190 391-1 4/15/91 Flame failure 1988 Table CF-2 391-2 4/15/91 Combustion air proving 19
23、88, 1989, 1990 Tables CF-1, CF-2, CF-3 391-3 4/15/91 Hot water low-water cutoff 1988, 1989, 1990 CW-130, CR-210 391-4 4/15/91 Safety shutoff valves 1982, 1984 CF-180, Table CF-1 391-5 4/15/91 Safety shutoff valves 1988, 1989, 1990 CF-180 391-7 11/15/91 Pump motors 1988, 1989, 1990 CE-130 491-8 11/16
24、/91 Water level controls 1988, 1989, 1990 CW-130 492-2 5/15/92 Scope, definitions All 493-1 11/9/93 Limit controls 1988 CW-210, CF-210 493-2 11/9/93 Rebuilt controls All See Inquiry 90-2 494-1 2/14/94 Purge 1992, 1993 CF-210 494-3 5/25/94 Pressure controls 1992, 1993 CW-310(f), CW-310(g) 594-4 5/17/
25、94 Low-water cutoff 1992, 1993 CW-310(c) 694-4a 5/31/94 Z21.13 1992, 1993 CSD-1 594-5 5/31/94 Purge damper 1992, 1993 CF-200, Tables CF-1, CF-2 594-6 5/31/94 Burners 1992, 1993 CF-160 594-8 9/2/94 Low-water cutoff 1992, 1993 CW-120(b)(2) 594-9 12/1/94 Pressure controls 1992, 1993 CW-310 595-1 2/10/9
26、4 Electric boiler 1992, 1993, 1994 CR-110(f) 595-2 11/22/95 Lockout 1992, 1993 Definitions 695-4 11/22/95 Burners 1992, 1993, 1994 CF-110(a) 696-1a 5/16/96 Flow/temperature sensor 1992, 1994 CW-210 796-1b 5/16/96 Exclusions 1992, 1994 CG-130 796-2a 5/16/96 Exclusions 1995 CG-130 796-2b 5/16/96 Contr
27、ols listing 1995 CW-310, CW-110, CW-410 796-03 5/16/96 Lockout 1995 CF-310, CF-510, CF-710 796-04 11/19/96 Leak test valves 1995 CF-150(d) 896-04R 10/29/97 Leak test valves 1995 CF-150(d) 896-05 11/19/96 Exclusions 1995 CG-130 897-01 5/23/97 Pressure controls 1995, 1996 CW-130 897-02 5/23/97 Electri
28、cal 1995, 1996 CE-110(a) 897-03 10/29/97 Water level controls 1995 CW-140a 997-04 11/25/97 Water level controls 1995 CW-140(c) 997-05 10/15/97 Manifolding pressure controls 1995, 1996a CW-310(h) 997-06 10/29/97 Atmospheric gas boiler 1995, 1996a, 1996b CG-100(a)(1) 997-07 10/29/97 Atmospheric vents
29、1995, 1996a, 1996b CF-190 997-08 10/29/97 Atmospheric type burner 1995, 1996a, 1996b Definitions 997-09 10/29/97 Automatic ignition devices 1995 CF-320 997-10 10/29/97 Safety shutoff valves 1995 CF-180 997-11 1/6/98 Low-water cutoff 1995 CW-120, CW-140 9(a)ASME CSD-1 INTERPRETATIONSInquiry No. Date
30、Subject Edition Reference Vol.98-01 3/9/98 Gas shutoff valve 1995 CF-150(a) 998-02 6/10/98 Water level controls 1995, 1996a, 1996b CW-140(d) 998-03 6/10/98 Water level controls 1995, 1996a, 1996b CW-140(d) 998-04 8/10/98 Gas shutoff valve 1995, 1996a, 1996b CF-150(a) 998-05 9/15/98 Atmospheric vents
31、 1995 CF-190 998-06 9/15/98 Gas-pressure regulator 1995, 1996a, 1996b CF-160 998-07 12/31/98 Automatic ignition device 1998 CF-320 998-08 11/29/99 Pressure controls for steam 1998 CW-310(j) 1098-09 3/31/99 Automatic ignition device 1998 CF-320 998-10 6/16/99 Operating and safety controls 1995, 1996
32、CW-150 1098-11 5/21/99 Testing of controls 1998 CM-110, CM-120, CM-130, 10Table CM-199-01 6/16/99 Combustion air 1998 CG-260 1099-02 6/16/99 Manually operated gas shutoff valve 1998 CF-150(b) 1099-03 6/16/99 Exclusions 19951998 CG-130 1099-04 11/29/99 Low-water cutoff 1998 CW-130(d) 1099-05 9/17/99
33、Gas-pressure switch 1998 CF-162 1099-07 11/29/99 Gas-fired boiler units 1998 CF-100(b) 1099-08 7/18/00 Burners 1998 CF-320(b), CF-310, CF-330 1000-01A 7/10/00 Vents 1998 CF-190(e) 1000-01B 7/18/00 Testing 1998 Table CM-1 1000-02 7/18/00 Primary safety control 1998 CF-310, CF-510 1000-03 7/18/00 Fuel
34、 pressure supervision 1998 Table CF-1 1000-04 7/18/00 Low-water cutoff 1998 CW-140 1000-07 12/14/00 Testing of flow switches 1998 CW-210 1000-08 12/14/00 Combustion air proving 1998 CF-220, Table CF-1 1001-01 6/15/01 Pressure controls 1998, 1999a CW-310(a), CW-410(a) 1101-02 10/17/01 Temperature con
35、trols 1998, 1999a CW-410(c) 1202-01 5/9/02 Gas-pressure switches 1998, 1999a CW-210 1202-02 5/9/02 Pilot gas supply 1998, 1999a, 2001b CF-150(b) 1202-03 5/9/02 Pulse combustion process 1998, 1999a, 2001b CF-300, Tables CF-1 12through CF-502-04 10/15/02 Fuel 2002 CG-110 1202-05 5/14/04 Fuel 2002 CG-1
36、10, CF-110 1203-01 04/10/03 Downstream manual shutoff valve 2002 CF-150(d) 1203-03 05/14/04 Compliance with Parts CM and CF 1998 CG-110(a)(1), Parts CM 13and CF04-01 05/14/04 Overpressure protection 2002 CF-161 1304-02 05/14/04 Pressure switches 2002 CF-162 1304-03 11/30/05 Shutdown valves 1998, 199
37、9a, CW-120, CW-130, CW-140, 131999b, 2002 CW-15004-04 02/02/05 Emergency switch and electric 2002 CE-110(a) 13boilers05-01 02/11/05 Water level controls for low-pres- 2002 CW-120 13sure steam vapor system boilers05-02 11/30/05 Emergency switch and electric 2002 CE-110(a) 13boilers(b)ASME CSD-1 INTER
38、PRETATIONSInquiry No. Date Subject Edition Reference Vol.05-03 11/30/05 Location of high limit 1998 CW-410 1305-04 08/08/06 Locking device 2002 CE-110(a) 1306-01 08/08/06 Shutdown switch 2004 CE-110(a) and (d) 1309-01 06/11/08 Fuel train design 2006 CF-120(a) 1409-02 07/09/08 High gas-pressure switc
39、h 2006 CF-162(d) 1409-03 09/26/08 Jacketed steam kettles 2006 Exclusions 1412-01 01/26/09 Vent lines and bleed lines 2006 CG-210 1512-02 07/10/09 Water level controls 2006 CW-130 1512-03 07/10/09 Temperature controls 2006 CW-410 1512-04 07/10/09 Shutoff valve 2006 CF-150 1512-05 07/13/09 Scope 1998,
40、 1999a Scope and Nonmandatory 15Appendix C12-06 12/04/09 Water level controls 2009 CW-110(a) 1512-07 01/06/11 Vacuum boilers 2009 Part CW 1512-08 12/05/11 Safety shutdown and lockout 2009 CF-220 15This list of interpretations refers to the following CSD-1 editions:First edition Issued April 29, 1977
41、 Fifth edition Issued June 30, 1995Second edition Issued December 31, 1982 1a addenda Issued July 31, 19961a addenda Issued November 15, 1984 1b addenda Issued December 20, 1996Third edition Issued February 15, 1989 Sixth edition Issued April 14, 19981a addenda Issued February 15, 1990 1a addenda Is
42、sued March 10, 20001b addenda Issued December 1, 1990 1b addenda Issued November 30, 2001Fourth edition Issued June 15, 1992 Seventh edition Issued April 15, 20021a addenda Issued November 30, 1993 Eighth edition Issued April 15, 20051b addenda Issued September 30, 1994 Ninth edition Issued December
43、 29, 2006Tenth edition Issued May 8, 2009Eleventh edition Issued May 10, 2012There were no inquiries prior to 1988.(c)INTENTIONALLY LEFT BLANKASME CSD-1 INTERPRETATIONSASME CSD-1INTERPRETATIONS VOLUME 14Replies to Technical InquiriesJune 2008 Through September 2008FOREWORDThis publication includes w
44、ritten replies issued in the year indicated by the secretary, speakingfor the ASME CSDAFB Committee, to inquiries concerning interpretations of technical aspectsof ASME CSD-1.These replies are taken verbatim from the original replies except for a few typographicalcorrections and some minor editorial
45、 corrections made for the purpose of improved clarity. Insome few instances, a review of the interpretation may reveal a need for corrections of a technicalnature; in these cases, a corrected interpretation will immediately follow the original reply.These interpretations were prepared in accordance
46、with the accredited ASME procedures.ASME procedures provide for reconsideration of these interpretations when or if additionalinformation is available that the inquirer believes might affect the interpretation. Further, personsaggrieved by this interpretation may appeal to the cognizant ASME committ
47、ee or subcommittee.ASME does not “approve,” “certify,” “rate,” or “endorse” any item, construction, proprietarydevice, or activity.I-1ASME CSD-1 INTERPRETATIONSInterpretation: 09-01Subject: CSD-12006, para. CF-120(a)Date Issued: June 11, 2008Question: Does para. CF-120(a) recommending fuel train des
48、ign (specifically, Fig. B-3) supersedepara. CF-162(c) indicating the location of the low gas-pressure switch?Reply: No.Interpretation: 09-02Subject: CSD-12006, para. CF-162(d)Date Issued: July 9, 2008Question: Does a high gas-pressure switch located on the manifold between the blower andburner meet
49、the intent of para. CF-162(c)?Reply: No.Interpretation: 09-03Subject: CSD-12006, ExclusionsDate Issued: September 26, 2008Question (1): Are low-pressure steam boilers constructed to ASME Boiler and Pressure VesselCode, Section IV that typically supply steam for ovens and unfired stream-jacked kettles usedin the preparation of food within the scope of CSD-12006?Reply (1): Yes.Question (2): Are electrically heated or gas-fired jacketed steam kettles constructed to ASMEBoiler and Pressure Vessel Code, Section VIII, Division 1 that comply with Mandatory Appendix19 within the sc
