ISO-13256-2-1998.pdf
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1、A Reference number ISO 13256-2:1998(E) INTERNATIONAL STANDARD ISO 13256-2 First edition 1998-08-15 Water-source heat pumps Testing and rating for performance Part 2: Water-to-water and brine-to-water heat pumps Pompes chaleur eau Essais et dtermination des caractristiques de performance Partie 2: Po
2、mpes chaleur eau-eau et eau glycole-eau Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/19/2007 05:46:46 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 132
3、56-2:1998(E) ISO 1998 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from the publisher. International Organization f
4、or Standardization Case postale 56 CH-1211 Genve 20 Switzerland Internetisoiso.ch Printed in Switzerland ii ContentsPage 1Scope.1 2Normative reference.1 3Definitions.1 4Rating and test conditions 3 4.1 Rating conditions for the determination of capacity3 4.2 Standard rating and part-load rating test
5、 conditions.5 5Performance requirements6 5.1 General6 5.2 Maximum operating conditions test 6 5.3 Minimum operating conditions test.7 5.4 Enclosure sweat test .7 6Test methods 9 6.1 General9 6.2 Uncertainties of measurement .9 6.3 Data to be recorded .9 6.4 Test tolerances.9 6.5 Test results.10 7Mar
6、king provisions.11 7.1 Nameplate requirement.11 7.2 Nameplate information11 7.3 Designation of capacity ratings11 7.4 Refrigerant designation.11 8Publication of ratings.12 8.1 Standard ratings.12 8.2 Application ratings.12 Annex A: Test procedures13 Annex B: Liquid enthalpy test method .14 Annex C:
7、Instrumentation and measurements 15 Annex D: Bibliography17 Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/19/2007 05:46:46 MDTNo reproduction or networking permitted without license fr
8、om IHS -,-,- ISOISO 13256-2:1998(E) iii Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member bo
9、dy 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. ISO collaborates closely with the International Electro
10、technical Commission (IEC) on all matters of electrotechnical standardization. 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
11、vote. This part of ISO 13256 was developed by ISO Technical Committee TC 86, Refrigeration, Subcommittee SC 6, Testing and rating of air-conditioners and heat pumps. ISO 13256 consists of the following parts, under the general title Water- source heat pumps Testing and rating for performance: Part 1
12、: Water-to-air and brine-to-air heat pumps Part 2: Water-to-water and brine-to-water heat pumps Annexes A and B form an integral part of this part of ISO 13256. Annexes C and D are for information only. Copyright International Organization for Standardization Provided by IHS under license with ISO L
13、icensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/19/2007 05:46:46 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 13256-2:1998(E) ISO iv Introduction This part of ISO 13256 covers heating and cooling systems which are generally referred to as “water-sour
14、ce heat pumps.” These systems generally include an indoor coil with air-moving means, a compressor, and a refrigerant-to-water or refrigerant-to-brine heat exchanger. A system may provide both heating and cooling, cooling-only, or heating-only functions. Copyright International Organization for Stan
15、dardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/19/2007 05:46:46 MDTNo reproduction or networking permitted without license from IHS -,-,- INTERNATIONAL STANDARD ISOISO 13256-2:1998(E) 1 Water-source heat pumps Testing and rating f
16、or performance Part 2: Water-to-water and brine-to-water heat pumps 1 Scope 1.1 This part of ISO 13256 establishes performance testing and rating criteria for factory-made residential, commercial and industrial, electrically driven, mechanical-compression type, water-to-water and brine-to-water heat
17、 pumps. The requirements for testing and rating contained in this part of ISO 13256 are based on the use of matched assemblies. 1.2 Equipment designed for rating at one application under this part of ISO 13256 may not be suitable for rating at all applications covered in this part of ISO 13256. 1.3
18、This part of ISO 13256 does not apply to the testing and rating of individual assemblies for separate use or to units having two or more indoor sections connected to a single outdoor section. It does not apply to heat pumps covered in ISO 5151, ISO 13253 or ISO13256-1. NOTE For the purpose of the re
19、maining clauses, the terms “equipment” or “heat pump” may be used to mean “water-to- water heat pumps” or brine-to-water heat pumps”, and the term “liquid” refers to either “water” or “brine.” 2 Normative reference The following standard contains provisions which, through reference in this text, con
20、stitute provisions of this part of ISO 13256. At the time of publication, the edition indicated was valid. All standards are subject to revision, and parties to agreements based on this part of ISO 13256 are encouraged to investigate the possibility of applying the most recent edition of the standar
21、d indicated below. Members of IEC and ISO maintain registers of currently valid International Standards. ISO 817:1), Refrigerants Number designation. 3 Definitions For the purposes of this part of ISO 13256, the following definitions apply. 3.1 water-to-water and brine-to-water heat pump heat pump w
22、hich consists of one or more factory-made assemblies which normally include an indoor-side refrigerant-to-water heat exchanger, compressor(s), and an outdoor-side refrigerant-to-water or refrigerant-to-brine heat exchanger(s), including means to indirectly provide both cooling and heating, cooling-o
23、nly, or heating-only functions NOTES 1 When such equipment is provided in more than one assembly, the separated assemblies should be designed to be used together. 2 Such equipment may also provide functions for sanitary water heating. _ 1) To be published. (Revision of ISO 817:1974) Copyright Intern
24、ational Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/19/2007 05:46:46 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 13256-2:1998(E) ISO 2 3.1.1 water-loop-heat pump applicatio
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