CSA CGA 2 17-M91-1991 Gas-Fired Appliances for Use at High Altitudes.pdf

1、CGA 2.17-Mgf A THE CANADIAN GAS ASSOCIATION The Canadian Gas Association, which represents all segments of the natural gas industry, has been accredited by the Standards Council of Canada to prepare National Standards of Canada in the area of equipment for use with natural gas and propane. CGA, foun

2、ded in 1907, represents distributors, transmission companies, producers, pipeline contractors, manufacturers, and allied service organizations. CGA set up a standards writing, inspection, and certification programme in the mid-1950s at a time when natural gas service was being extended to Eastern Ca

3、nada and the West Coast. The standards programme now embraces 90 standards for gas appliances and accessories. Committees that write the standards include representation from all interests and are so constituted that no one interest may dominate. The interests represented include consumers, manufact

4、urers, utilities, governmental inspection authorities, and certification organizations. Standards are prepared using the consensus principle with effort applied to reconcile differing opinions. Government inspection authorities having jurisdiction also ballot on the standards as members of the Inter

5、provincial Gas Advisory Council (IGAC). The CGA Standards Advisory Committee (SAC) reviews committee structures and procedures to determine that a standard meets the criteria of the Standards Council of Canada. This Standard has been accepted by the Standards Committee, IGAC and SAC. This Standard i

6、s intended to be used within the scope of the standard by the manufacturing sector, by those applying the equipment, or those responsible for its proper application. It is the responsibility of the user to determine in each case that the Standard is suitable for the specific application. The Standar

7、ds Committee and IGAC normally stipulate an effective date for the Standard, delayed sufficiently to permit suppliers to make adjustments. CGA Approvals, incorporated 1993, operates a certification programme for fuel-fired products which is accepted by all Canadian inspection authorities and accredi

8、ted by the Standards Council of Canada. In addition, through the Canadian Gas Research Institute (CGRI), the gas industry is pursuing the improvement of equipment and the development of new products. Data from these projects is available to Standards Committees for review and consideration. 0 Recomm

9、endations for new standards and revisions to existing standards may come from any source. These suggestions should be addressed to the Standards Department of CGA Approvals. Published by: Canadian Gas Association 55 Scamdale Road, DON MILLS (TORONTO), ONTARIO, CANADA M3B 2R3 PRINTED IN CANADA Standa

10、rds Update ServiceCAN/CGA-2.17-M91April 1991Title: Gas-Fired Appliances for Use at High AltitudesPagination: 9 pages (ii preliminary and 7 text), each dated April 1991To register for e-mail notification about any updates to this publicationgo to shop.csa.caclick on CSA Update ServiceThe List ID that

11、 you will need to register for updates to this publication is 2006201.If you require assistance, please e-mail techsupportcsagroup.org or call 416-747-2233.Visit CSA Groups policy on privacy at csagroup.org/legal to find out how we protect your personal information.CGA STANDARD CGA 2.17-M91 GAS-FIRE

12、D APPLIANCES FOR USE AT HIGH ALTITUDES Prepared by CANADIAN GAS ASSOCIATION Published April, 1991 Copyright 0 Canadian Gas Association - 1991 NOTE Please note that this Canadian Gas Association Standard was originally published by CGA as a National Standard of Canada under the designation “CAN/CGA-2

13、.17-M9 1 t Since it was not available in French, the Standards Council of Canada asked that it be withdrawn as a National Standard of Canada. It is now published as a Canadian Gas Association Standard under the designation: “CGA 2.1 7-M9 1 t All references made herein to Standard I: 3 “CAN/CGA-2.17-

14、M9 1 “and any applicable Amendment(s) should be replaced with “CGA 2.17-M91“. The content of this CGA Standard and any applicable Amendment(s) is identical to that of reference “CAN/CGA-2.17-M91“. April, 1994 i THE INTERPROVINCIAL GAS ADVISORY COUNCIL - April, 1991 - De artment of Labour V.H. PERRY

15、(Chairman) La (Alternate: D.C. Stewart) Ha x, Nova Scotia (Alternate: J.B. Turnbull) (Alternate: J.J.Gerdels) Branch M.G. CHERRY (Vice Wtairman) . B.C. Ministry of Municipal Affairs R. CLENDINING MCCR Ontario Fuels Safety Vancouver, British Columbia Etobicoke, Ontario R.L. CULVER Alberta Department

16、of Labour Edmonton, Alberta P. FITZPATRICK N.B. Department of Labour (Alternate: M. Dunnett) Fredericton, New Brunswick Government of the Yukon Territory Whitehorse, Yukon Territory Charlottetown, Prince Edward Island R.H. JACKSON R. KENNEDY P.E.I. Department of Muniapal Affairs E. MAROTTA Labour Ca

17、nada (Alternate: W.G. Mitchell) Ottawa, Ontario I.W. MAULT Manitoba Labour H.D. MAYE Department of Labour R. McRAE Government of Northwest Winnipeg Manitoba St. Johns, Newfoundland Temtories Yellowknife, Northwest Territories (Alternate: D. Eastman) R. ROSS Saskatchewan Power Corporation Regina, Sas

18、katchewan J. SAMSON Ministere du Travail Montreal, Quebec K.G. BALES (Secretary) Canadian Gas Association Don Mills, Ontario ii CGA 2.17 STANDARDS COMMITTEE ON GAS-FIRED APPLIANCES FOR USE AT HIGH ALTITUDES H. VOLK, (Chahmn) Canadian Western Natural Gas Co. Ltd. 909 - 11th Avenue S.W. Calgary, Alber

19、ta. T2R 1L8 (Alternate: F.D. Martlett) R.L. CULVER, (Vice-Chahnan) Alberta Department of Labour, 10808 - 99th Avenue, Edmonton, Alberta. T5K OG5 W. BUDD, Lennox Industries (Canada) Limited, 400 Norris Glen Road, Etobicoke, Ontario. M9C 1H5 (Alternate: D.A. Zielke) G, FRANCHUK, City of Edmonton, 200

20、Revillon Building, 10320 - 102 Avenue N.W., Edmonton, Alberta. T5J 2x6 J. FRANGAKIS, Canadian Standards Association, 178 Rexdale Boulevard, Rexdale, Ontario. M9WlR3 . J. HUCSKO, A. D. Smith Enterprises Ltd. 768 Erie Street, Stratford, Ontario. N5A 6T3 (Alternate: F. Schosser) T. KARVEY, City of Calg

21、ary, P.O. Box 2100, Calgary, Alberta. (I, T2P 2M5 I. KILLACKY, B.C. Ministry of Municipal Affairs, 601 West Broadway, 2nd Floor, Vancouver, B.C. V5Z 4G9 (Alternate: P. Priebatsch) G. MUNROE, Evcon Supply Inc. 3115 Pepper Mill Court, Unit D3, Mississauga, Ontario. L5L 4x5 (Alternate: C.V. Lamirande)

22、P.G. McKAY, Weil-McLain, Division Marley Canadian Incorporated, 126 East Drive, Brampton, Ontario. L6T 1C2 (Alternate: J. Ruffell) I. NEUFELDT, Sure Flame Products, Division of Haul-All Equipment Ltd. 4115-18 Avenue North, Lethbridge, Alberta. T1H 5G1 D.J. WOLFF, Engineered Air, Division of Airtex I

23、ndustries Ltd. 1401 Hastings Crescent S.E. Calgary, Alberta. T2G 4C8 R. THURTON, (Secretary) Canadian Gas Association, 55 Scardale Road, Don Mills, Ontario. M3B 2R3 TABLE OF CONTENTS Page C / Interprovincial Gas Advisory Council Members . Standard Committee Members PART I CONSTRUCTION 1.1 Scope . 1.

24、2 General . 1.3 Identification by Model Number . 1.4 Marking . 1.5 Field Convertibility . 1.6 Instructions . PART I1 PERFORMANCE 2.1 General . 2.3 Tests . 2.2 Burner Adjustments . PART I11 DEFINITIONS : FIGURE 1 Suggested Marking Format NOTE This Standard contains SI (Metric) equivalents to the yard

25、/pound quantities, the purpose being to allow the Standard to be used in SI (Metric) units. Some sectors of Industry in the future may select different SI (Metric) values where this Standard shows only equivalents. Where a SI (Metric) equivalent is given with the yardlpound system, the yardlpound va

26、lue shall take precedence. Where a SI (Metric) equivalent is given with a yardlpound value, both of which are specified as a quoted marking provision, either the SI (Metric) or the yard/pound value, or both, shall be provided. i ii 1 1 1 1-2 2 3 4 4 45 6 7 1 PART I 1. CONSTRUCTION 1.1 SCOPE 1.1.1 Th

27、is Standard covers the construction, and performance*, (See Part 111, DEFINITIONS) for gas-fired appliances with inputs up to and including 400 OOO Btuh (117.23 kW)* to determine their suitability for use at high altitude. The appliances include furnaces, boilers, room heaters, unit heaters, water h

28、eaters and such other appliances where field conditions indicate the necessity of testing for high- altitude use (See Part 111, DEFINITIONS). The test rate shall mean the appliances input at a datum of 500 feet (152 m) or 29.38 inches of mercury (99.2 kPa) pressure. * NOTE: At the option of the manu

29、facturer, tests specified in Part I1 may be conducted at a high-altitude location. * NOTE: This input limitation reflects what is currently required by inspection authorities in high-altitude areas (i.e. appliances under 400 000 Btuh must meet the requirements of this Standard). Appliances with inpu

30、ts in excess of 400 000 Btuh may still be reviewed for compliance with this Standard. 1.1.2 This Standard applies to appliances specified in 1.1.1 when for use over an altitude range of 2 000 - 4 600 feet (610 - 1 370 m), or 0 - 4 500 feet (0 - 1 370 m). 1.2 GENERAL 1.2.1 Appliances for use at high

31、altitudes shall comply with the applicable (CAN/)CGA Standard for appliance, in addition to this Standard. 1.2.2 Space-heating and water- heating appliances intended for installation in mobile housing or recreational vehicles shall be suitable for use over an altitude range of 0 - 4 500 feet (0 - 1

32、370 m). 19.3 High-altitude ratings may be obtained by a change in orifice size or by a change in manifold pressure when the appliance is equipped with a gas pressure regulator. 19.4 Appliances may be equipped or adjusted at the factory for the high- altitude rating, or may be field converted to obta

33、in the high-altitude rating using a manifold pressure change, or by using a certified field conversion kit. 1.3 IDENTIFICATION BY MODEL NUMBER 18.1 Where structural changes are incorporated in the appliance by the manufacturer in order to comply with this Standard, the model number designated shall

34、differ from that of the corresponding low-altitude model. A dual flue or vent collar, a change in orifice size, or a change in manifold pressure, shall not be considered a structural change. 1.4 MARKING 1.4.1 Namemating Plate: In addition to the marking specified by the applicable (CANhCGA Standard

35、for the appliance, the following shall be included on the namdrating plate: a) For appliances shipped from the factory equipped with orifices for a epecific altitude: The altitudes as 0 - 2 OOO ft (0 - 610 m) andlor 2 OOO - 4 500 ft (610 - 1 370 m) with the corresponding orifice size, manifold press

36、ure and ratings; 2 b) For appliances pressure change altitude ratings: using a manifold to obtain the high- The altitudes as 0 - 2 000 ft (0 - 610 m) and 2 000 - 4 600 ft (610 - 1 370 m) (or 0 - 4 600 ft (0 - 1 370 m) for multiple-rated appliances) with the corresponding orifice size, manifold press

37、ure and ratings. In addition, the appliance shall be marked to indicate the altitudes for which it has been adjusted at the factory, and shall include provision to indicate that it has been re- adjusted in the field to obtain the ratings for the alternate altitude. This provision may be accomplished

38、 by the use of a separate label to be affixed by the installer or by a marking on the namehating plate which could be checked off by the installer; C) For appliances suitable for installation at 0 - 4 500 ft (0 - 1 370 m) without change: The altitudes as 0 - 4 500 ft (0 - 1 370 m) with the orifice s

39、ize, manifold pressure and ratings. The ratings required in a), b) and c) of this Clause include input ratings, output ratings, bonnet capacities and recovery capacities as specified in the applicable (CANOCGA Standard for the appliance. (Refer to Figure 1 for suggested format, based on the aforemen

40、tioned Marking provisions). 1.4.2 When a conversion kit is used to convert an appliance for use at an alternate altitude it shall include the following Class IIIA-I conversion data plate, together with instructions that this plate be attached adjacent to the namehating plate, as stipulated in 1.4.1.

41、 This appliance has been converted for we at an altitude of: W5ce size Manifold Pressure Input Data of Conversion Type of Fuel Converted byr 1.4.8 Appliances equipped with two sizes of flue or vent collars, one for low altitude and a larger one for high altitude shall show the size(s) of the flue or

42、 vent in inches diameter on the namehating plate correlated to the altitude for which the appliance is equipped. (Refer to Figure 1 for suggested format based on the aforementioned Marking provisions). 1.5 FIELDCONVERTIBILITY 15.1 A conversion kit and instructions to convert an appliance for use at

43、an alternate altitude shall be investigated during testing of the appliance. I 1.5.2 The instructions shall include a list of parts included and complete detailed information on the conversion. 15.8 The instructions shall contain the following statement: THE CONVERSION SHALL BE CARRIED OUT BY A MANU

44、FACTURERS AUTHORIZED REPRESENTATIVE, IN ACCORDANCEFYITHTHEREQUIREMENTS OF THE MANUFACTURER, PROVINCIAL OR TERRITORIAL AUTHORITIES HAVING JURISDICTION AND IN ACCORDANCE WITH “HE REQUIREMENTS OF THE CAN/CGA-B 149.1 or CANKGA-B149.2 INSTALLATION CODES“. 1.5.4 When an appliance is field converted for hi

45、gh-altitude rating, the conversion kit used for performing the conversion shall comply with 1.4.2. c 1.6 INSTRUCTIONS 1.6.1 The appliance installation instructions shall include information on the use of the appliance at high altitude. The method to be used to obtain the high- altitude rating shall

46、be clearly detailed. The necessity of attaching any supplementary labels or marking the namehating plate relative to a field conversion shall also be clearly indicated. 3 4 PART 11 2. PERFORMANCE 2.1 GENERAL 2.1.1 Unless otherwise specified in this Standard, the test conditions regarding plenums, te

47、mperature measuring devices, external static pressure, temperature rise, test procedures and test gases, shall be in accordance with that specified in the applicable (CAN/)CGA Standard for the appliance. 2.2 BURNERADJUSTMENTS 2.2.1 The input for direct vent space heating and direct vent water heatin

48、g appliances shall be adjusted at the manufacturers designated high-altitude manifold pressure to within +2% and -WO of the test rate. The test rate shall be calculated as follows: - 29.38 or - 99.21 where R,= PP = b) Burner Operating Characteristics; 3 test rate c) Pilot Burners and Safety Shut- ac

49、tual barometric pressure (inches Devices; Hg) actual barometric pressure (kPa) manufacturers specified high- Section titled DRAFT HOODS). altitude input rate d) Blocked Flue Outlet (as outlined in * NOTES Any inoream in input or manifold pressure rpecitied in 2.2.2 Except as noted in Clause those specified in 2.2.1, shall be adjusted at the manufacturers designated high-altitude them test. over the manufacturers qmaified values, as the input for appliances, other than referred to in the applicable Standard for the appliance, ohall be bd on the test rate, (RJ and the man