ISO INTERNATIONAL STANDARD 23552-1 First edition 2007-10-15 Safety and control devices for gas and/or oil burners and gas and/or oil appliances Particular requirements Part 1: Fuel/air ratio controls, electronic type Dispositifs de commande et de sécurite pour bruleurs a gaz et/ou a fioul et pour appareils a gaz et/ou a fioul - Exigences particulieres Partie 1: Dispositifs de regulation du rapport air/combustible de type électronique Reference number ISO 23552-1:2007(E) @ ISO 2007 HS unde Not for Resale ISO 23552-1:2007(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobe's licensing policy, this file may be printed or viewed but shall not be edited unless the typefaces which are embedded are licensed to and installed on the computer performing the editing. In accepts no liability in this area. Adobe is a trademark of Adobe Systems Incorporated. Details of the software products used to create this PDF file can be found in the General Info relative to the file; the PDF-creation parameters were optimized for printing. Every care has been taken to ensure that the file is suitable for use by IsO member bodies. In the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below COPYRIGHTPROTECTEDDOCUMENT @ISO2007 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, IsO's member body in the country of the requester. ISO copyright office Case postale 56. CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail [email protected] Web www.iso.org Published in Switzerland @ ISO 2007 - All rights reserved edwithoutlicense from IHS Not for Resale ISO 23552-1:2007(E) Contents Page Foreword Introduction 1 2 Normative references 3 Terms and definitions 4 Classification. 5 Test conditions 6 Construction. 7 Performance 8 EMc/Electricalrequirements 9 Marking and installation.. 12 Annex B (normative) Special requirements for single position feedback potentiometers in electromechanical actuators . 19 Annex C (normative) Specific regional requirements in Japan . .20 Bibliography 21 Copyright internatinal organizaionfar standardizalion ghts reserved ii se from IHS Not for Resale ISO23552-1:2007(E) Foreword IsO (the International Organization for Standardization) is a worldwide federation of national standards bodies technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with isO, also take part in the work. so collaborates closely with the InternationalElectrotechnicalCommission(lEC)onallmattersofelectrotechnicalstandardization. International Standards are drafted in accordance with the rules given in the ISO/lEC Directives, Part 2. The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. rights. IsO shall not be held responsible for identifying any or all such patent rights. ISO 23552-1 was prepared by Technical Committee ISO/TC 161, Control and protective devices for gas and oil burners and gas and oil burning appliances. IsO 23552 consists of the following parts, under the general title Safety and control devices for gas and/or oil burners and gas and/or oil appliances Particular requirements: Part 1: Fuel/air ratio controls, electronic type Additional parts are planned. ISO 2007 - All rights reserved ional Organization for Standardizatior ISO 23552-1:2007(E) Introduction For electronic fuel/airratiocontrol systems,there are numeroussolutionsfor specific applications inthe fuel/air ratio control systems only. This part of IsO 2355