1、_ SAE Technical Standards Board Rules provide that: “This report is published by SAE to advance the state of technical and engineering sciences. The use of this report is entirely voluntary, and its applicability and suitability for any particular use, including any patent infringement arising there
2、from, is the sole responsibility of the user.” SAE reviews each technical report at least every five years at which time it may be reaffirmed, revised, or cancelled. SAE invites your written comments and suggestions. Copyright 2011 SAE International All rights reserved. No part of this publication m
3、ay be reproduced, stored in a retrieval system or transmitted, in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without the prior written permission of SAE. TO PLACE A DOCUMENT ORDER: Tel: 877-606-7323 (inside USA and Canada) Tel: +1 724-776-4970 (outside U
4、SA) Fax: 724-776-0790 Email: CustomerServicesae.org SAE WEB ADDRESS: http:/www.sae.orgSAE values your input. To provide feedbackon this Technical Report, please visit http:/www.sae.org/technical/standards/J1660_201104SURFACEVEHICLERECOMMENDEDPRACTICEJ1660 APR2011 Issued 1993-06 Stabilized 2011-04 Su
5、perseding J1660 NOV1998 Fittings and Labels for Retrofit of CFC-12 (R-12) Mobile Air-Conditioning Systems to HFC-134a (R-134a) RATIONALE The technical report covers technology, products, or processes which are mature and not likely to change in the foreseeable future. STABILIZED NOTICE This document
6、 has been declared “Stabilized“ by the SAE Interior Climate Control Committee and will no longer be subjected to periodic reviews for currency. Users are responsible for verifying references and continued suitability of technical requirements. Newer technology may exist. Copyright SAE International
7、Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-SAE J1660 Stabilized APR2011 Page 2 of 4 1. ScopeThis SAE Recommended Practice describes the specific measures required to meet SAEestablished criteria when retrofitting CFC-12 (R
8、-12) mobile air-conditioning (A/C) systems to HFC-134a (R-134a), with regards to fittings and labeling. This document is complete only when combined with therequirements of SAE J1657.2. References2.1 Applicable PublicationsThe following publications form a part of the specification to the extent spe
9、cifiedherein. Unless otherwise indicated, the latest revision of SAE publications shall apply.2.1.1 SAE PUBLICATIONSAvailable from SAE, 400 Commonwealth Drive, Warrendale, PA 15096-0001.SAE J639Safety and Containment of Refrigerant for Vapor Compression Systems for Mobile Air-Conditioning SystemsSAE
10、 J1627Rating Criteria for Electronic Refrigerant Leak DetectorsSAE J1628 Technician Procedure for Using Electronic Refrigerant Leak Detector for Service of MobileAir-Conditioning SystemsSAE J1657Selection Criteria for Retrofit Refrigerants to Replace CFC-12 (R-12) in Mobile Air-Conditioning SystemsS
11、AE J1661Procedure for Retrofitting CFC-12 (R-12) Mobile Air-Conditioning Systems to HFC-134a(R-134a)SAE J2064HFC-134a (R-134a) Refrigerant Automotive Air-Conditioning Hose2.1.2 UL PUBLICATIONAvailable from Underwriters Laboratories, Inc., 333 Pfingsten Road, Northbrook, IL60062-2096.ANSI/UL 969-1991
12、Marking and Labeling Systems3. Fittings3.1 There shall be at least one system service port which complies with SAE J639 for HFC-134a (R-134a). If botha high side and low side service port exist, there shall be at least one high side and at least one low sidesystem service port which complies with SA
13、E J639 for HFC-134a (R-134a) after the retrofit is completed.Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-SAE J1660 Stabilized APR2011 Page 3 of 4 3.2 When existing CFC-12 (R-12) service ports are
14、 to be retrofit, HFC-134a (R-134a) conversion assemblies shallbe fitted. The conversion assembly shall attach to the CFC-12 (R-12) fitting with a thread lock adhesive and/ora separate mechanical latching mechanism (e.g., snap-ring, drive-wire, roll pin, etc.) in a manner that preventsthe assembly fr
15、om being removed inadvertently.3.2.1 A conversion assembly that consists of flexible portion(s) as well as nonflexible couplings and/or fittings shallcomply with SAE J639. Such a conversion assembly, up to and including the appropriate CFC-12 (R-12)interface, shall be considered a hose assembly and
16、shall meet all requirements of SAE J2064. Such aconversion assembly shall also meet the following vibration test requirements. Following successfulcompletion of the SAE J2064 Coupling Integrity Test, subject these same test specimen assemblies, stillcharged with the appropriate amount of refrigerant
17、 (5.3.2.1), to the following vibration testing sequence:a. Install each test specimen assembly on a vibration table with the conversion adaptor positioneddownward.b. Expose the assembly to 77 C + 5 C and vibrate at 30 Hz + 5 Hz and 1.57 mm total displacement in avertical direction for 200 h followed
18、 by 200 h in a horizontal direction.At the end of test, verify gravimetrically that the test assembly still has a refrigerant charge. Refrigerantleakage at the end of test shall not exceed 0.45 kg per 40 years. Leak detection equipment andmethodology shall conform to SAE J1627 and J1628.3.2.2 A conv
19、ersion assembly that consists solely of nonflexible couplings and/or fittings shall comply with SAEJ639. Such a conversion assembly, up to and including the appropriate CFC-12 (R-12) interface, shall betested in accordance with SAE J2064 Coupling Integrity Testing sections covering coupling integrit
20、y, testspecimens, charging and exposure, after which refrigerant leakage shall not exceed 0.45 kg per 40 years.Leak detection equipment and methodology shall conform to SAE J1627 and J1628. Following successfulcompletion of this “modified“ SAE J2064 Coupling Integrity Test, subject these same test s
21、pecimenassemblies, still charged with the appropriate amount of refrigerant, to the following vibration testingsequence.a. Install each test specimen assembly on a vibration table with the conversion adaptor positiondownward.b. Expose the assembly to 77 C + 5 C and vibrate at 30 Hz + 5 Hz and 1.57 m
22、m total displacement in avertical direction for 200 h followed by 200 h in a horizontal direction.Refrigerant leakage at the end of test shall not exceed 0.45 kg per 40 years. Leak detection equipment andmethodology shall conform to SAE J1627 and J1628.3.2.3 Only a conversion assembly meeting the re
23、quirements of 3.2.1 and 3.2.2 may be labeled with “SAE J1660“or “Complies with SAE J1660.“3.3 When new HFC-134a (R-134a) service ports are added, they shall conform to SAE J639. Such added retrofitservice ports shall comply with SAE J2064 Coupling Integrity Test 5.3.2 and 5.3.3.3.4 All CFC-12 (R-12)
24、 service ports shall either be retrofitted with conversion assemblies as in 3.2, or be renderedincompatible with CFC-12 (R-12) related service equipment by fitting with a device such as a plug or cap. Thisdevice shall attach to the CFC-12 (R-12) fitting with a thread locking adhesive and/or a separa
25、te latchingmechanism (e.g., snap-ring, drive-wire, roll pin, nonremovable plug) that prevents the device from beingremoved inadvertently.4. LabelsWhen a retrofit procedure is performed, a label(s) documenting the change shall be affixed to thevehicle as described as follows.4.1 The retrofit label sh
26、all have a header with the words “NOTICE: RETROFITTED TO R134a.“Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-SAE J1660 Stabilized APR2011 Page 4 of 4 4.1.1 The background color of the retrofit lab
27、el shall be PMS 2975, Sky Blue.4.1.2 The retrofit label shall comply with SAE J639. The retrofit label material and construction shall conform to allspecifications and requirements appropriate for the intended installed location, i.e., a decal installed in theengine compartment shall meet temperatur
28、e requirements. Testing of decals shall meet ANSI/UL 969-1991.4.1.3 The retrofit label shall contain “Retrofit procedure performed to SAE J1661,“ as well as the refrigerant chargeamount and lubricant type.4.1.4 The retrofit label shall be affixed over the existing R12 label, provided this does not l
29、imit visibility of otherinformation unrelated to CFC-12 (R-12). In any case, the retrofit label shall be affixed as close to the originalR12 label as possible, on an easily accessible part or surface not normally replaced during service or vehicleaccident damage replacement.4.1.5 All information rel
30、ated to CFC-12 (R-12) on existing labels shall be rendered unreadable by some permanentmeans, such as complete removal, sectioning, tamper-proof masking, permanent marking, or overlay by theretrofit label.4.1.6 The retrofit label, or the auxiliary label described in 4.2, shall contain the name and a
31、ddress of the companyor individual who performed the retrofit, the date of the retrofit, type and amount of refrigerant, and type andamount of lubricant used. If an auxiliary label is used, the retrofit label shall contain the location of theauxiliary label.4.2 An auxiliary label shall be required i
32、f the retrofit label does not contain all the information required in 4.1.4.2.1 The background color of the auxiliary label shall be PMS 2975, Sky Blue.4.2.2 The auxiliary label material and construction shall conform to all specifications and requirements appropriatefor the intended installed locat
33、ion, i.e., a decal installed in the engine compartment shall meet temperaturerequirements. Testing of decals shall meet ANSI/UL 969-1991. The auxiliary label shall be affixed in aneasily accessible location on a part or surface not normally replaced during service.PREPARED BY THE SAE INTERIOR CLIMATE CONTROL STANDARDS COMMITTEECopyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
