CSA C900 6-2006 Heat meters - Part 6 Installation commissioning operational monitoring and maintenance (First Edition).pdf

1、C900.6-06(reaffirmed 2011)Heat meters Part 6: Installation, commissioning, operational monitoring and maintenanceLegalNoticeforStandardsCanadian Standards Association (CSA) standards are developed through a consensus standards development process approved by theStandards Council of Canada. This proc

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16、 to destroy them immediately. Use of thisdocument constitutes your acceptance of the terms and conditions of this Legal Notice.CSA Standards Update ServiceC900.6-06September 2006Title: Heat meters Part 6: Installation, commissioning, operational monitoring and maintenancePagination: 22 pages (CSA/1C

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19、.caC900.6-06Heat meters Part 6: Installation, commissioning, operational monitoring and maintenanceCSA StandardC900.6-06Heat meters Part 6: Installation, commissioning,operational monitoring and maintenanceCSA/2 Canadian Standards Association September 2006C900.6-06Heat meters Part 6: Installation,

20、commissioning, operational monitoring and maintenanceCSA PrefaceThis is the first edition of CSA C900.6, Heat meters Part 6: Installation, commissioning, operational monitoring and maintenance, which is an adoption, with Canadian deviations, of the identically titled CEN (European Committee for Stan

21、dardization) Standard EN 1434-6 (first edition, 1997-02), including amendment A1:2002.This Standard is considered suitable for use for conformity assessment within the stated scope of the Standard.This Standard was reviewed for Canadian adoption by the CSA Technical Committee on Thermal Energy Meter

22、s, under the jurisdiction of the Strategic Steering Committee on Performance, Energy Efficiency, and Renewables, and has been formally approved by the Technical Committee. A list of the members of the Technical Committee is available upon request. September 2006 Canadian Standards Association 2006Al

23、l rights reserved. No part of this publication may be reproduced in any form whatsoever without the prior permission ofthe publisher. CEN material is reprinted with permission. Inquiries regarding this CSA Standard should be addressed toCanadian Standards Association5060 Spectrum Way, Suite 100, Mis

24、sissauga, Ontario, Canada L4W 5N61-800-463-6727 416-747-4000www.csa.caTo purchase CSA Standards and related publications, visit CSAs Online Store at www.ShopCSA.ca or call toll-free 1-800-463-6727 or 416-747-4044.C900.6-06Heat meters Part 6: Installation, commissioning,operational monitoring and mai

25、ntenanceSeptember 2006 Canadian Standards Association CSA/3Canadian deviations4Requirements4.2 Installation requirementsReplace the eighth paragraph with the followingMeasurement signal leads shall not be laid directly alongside other leads such as mains supply cables, low-voltage supply cables, and

26、 data communication cables and shall be independently supported. The separation between those groups shall not be less than 50 mm.Add the following paragraphIn areas where lightning is frequent, mains and external signal cables longer than 10 m shall be protected with an external lightning surge pro

27、tection at the cable entrance to the building.4.3.2 Installation checkAdd the following item after the first dashed item Does the temperature sensor fit correctly into the pocket? (Pockets shorter than 140 mm shall be marked “EN 1434 of dimensions checked”.)Blank pageEUROPEAN STANDARDNORME EUROPENNE

28、EUROPISCHE NORMEN 1434-6:1997/A1September 2002ICS 17.200.10English versionHeat meters - Part 6: Installation, commissioning, operationalmonitoring and maintenanceCompteurs dnergie thermique - Partie 6: Installation, miseen service, surveillance et maintenanceWrmezhler - Teil 6: Einbau, Inbetriebnahm

29、e,berwachung und WartungThis amendment A1 modifies the European Standard EN 1434-6:1997; it was approved by CEN on 1 July 2002.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for inclusion of thisamendment into the relevant national standard w

30、ithout any alteration. Up-to-date lists and bibliographical references concerning suchnational standards may be obtained on application to the Management Centre or to any CEN member.This amendment exists in three official versions (English, French, German). A version in any other language made by tr

31、anslation under theresponsibility of a CEN member into its own language and notified to the Management Centre has the same status as the official versions.CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece,Iceland, Ireland, It

32、aly, Luxembourg, Malta, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: rue de Stassart, 36 B-1050 Brussels 2002 CEN All rights of exploitation in any for

33、m and by any means reservedworldwide for CEN national Members.Ref. No. EN 1434-6:1997/A1:2002 EEN 1434-6:1997/A1:2002 (E)2ContentspageForeword3Introduction .41 Amended clauses .4EN 1434-6:1997/A1:2002 (E)3ForewordThis document (EN 1434-6:1997/A1:2002) has been prepared by Technical Committee CEN/TC

34、176 “Heatmeters“, the secretariat of which is held by DS.This Amendment to the European Standard shall be given the status of a national standard, either by publication ofan identical text or by endorsement, at the latest by March 2003, and conflicting national standards shall bewithdrawn at the lat

35、est by March 2003.According to the CEN/CENELEC Internal Regulations, the national standards organizations of the followingcountries are bound to implement this Amendment to the European Standard: Austria, Belgium, Czech Republic,Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Lux

36、embourg, Malta, Netherlands, Norway,Portugal, Spain, Sweden, Switzerland and the United Kingdom.EN 1434-6:1997/A1:2002 (E)4IntroductionThis amendment to EN 1434-6 is divided into 2 main areas. The first being the new clauses i.e. clauses which arenot present in the 1997 version. The second being the

37、 amended clauses, where the entire clause not only thechanges is presented.It has been prepared in such a way that it can be cut and pasted into the old version.A new descriptor has been added: cooling meters.1 New clausesAdd new clause to Annex AA.5 Additional recommendations for cooling applicatio

38、n- Install flow sensor at high temperature line to reduce condensation, and to improve meter performance, dueto temperature dependence.- As cooling meters very often operate with a very low temperature difference, maximum care should be takenat temperature sensor selection and installation. Symmetri

39、cal installation and insulation of the sensors arevery important factors.- Balanced adjustment of temperature measurement, inside the calculator of a hybrid instrument, at thespecific flow temperature, will improve performance.- To avoid the accumulation of condensation, install pockets with opening

40、 downwards.2 Amended clausesNEW TEXT1 ScopeThis European Standard applies to heat meters, that is to instruments intended for measuring the heat which, ina heat-exchange circuit, is absorbed or given up by a liquid called the heat-conveying liquid. The heat meterindicates the quantity of heat in leg

41、al units.Electrical safety requirements are not covered by this standard.Pressure safety requirements are not covered by this standard.Surface mounted sensors are not covered by this standard.Part 1 specifies general requirements.EN 1434-6:1997/A1:2002 (E)5NEW TEXT (only 8th paragraph changed)4.2 In

42、stallation requirementsThe heat meter shall be installed in accordance with the suppliers instructions.Before installation, the circuit into which the flow sensor is to be installed shall be thoroughly flushed to removedebris. The strainer, where fitted, shall be cleaned.The heat meter shall be prot

43、ected from the risk of damage by shock and vibration induced by the surroundings atthe place of installation.The heat meter shall not be subjected to undue stresses caused by pipes and fittings.The pipe lines of the heating system up and downstream of the heat meter shall be adequately anchored.Heat

44、 meters designed to operate from an AC mains supply shall be wired in accordance with wiring regulationsapplicable.The AC-mains power supply shall be secured against accidental interruption. However, circuit protection shall beincorporated according to the state of the art, to safely disconnect the

45、device when electrical problems occur.Signal and low voltage supply leads shall not be laid directly alongside mains supply cables and shall beindependently supported. The separation between signal leads and mains supply cables shall not be less than50 mm.Each signal lead between temperature sensors

46、 and calculator shall be one continuous length without joints.Signal circuits between parts of a heat meter shall be so installed as to deter unauthorized interference anddisconnection.Precautions shall be taken to prevent damage to the heat meter by unfavourable hydraulic conditions (cavitation,sur

47、ging, water hammer).When the installation of the heat meters is complete, it shall be inspected and approved by representatives of thecompetent authority in accordance with established procedures.Blank pageI consent to CSA collecting and using the above information to facilitate the collection of my

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