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 ther
2、efrom, is the sole responsibility of the user.” SAE reviews each technical report at least every five years at which time it may be revised, reaffirmed, stabilized, or cancelled. SAE invites your written comments and suggestions. Copyright 2015 SAE International All rights reserved. No part of this
3、publication may 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: +1 724-776-49
4、70 (outside USA) Fax: 724-776-0790 Email: CustomerServicesae.org SAE WEB ADDRESS: http:/www.sae.org SAE values your input. To provide feedback on this Technical Report, please visit http:/www.sae.org/technical/standards/J3030_201507 SURFACE VEHICLE STANDARD J3030 JUL2015 Issued 2015-07 Automotive Re
5、frigerant Recovery/Recycling/Recharging Equipment Intended for use with Both R-1234yf and R-134a RATIONALE The dual-refrigerant equipment (for R-1234yf and R-134a) covered by this standard will enable smoother, more economical service during the period when vehicles with R-134a are still in use and
6、R-1234yf is being phased in to new cars. FOREWORD The purpose of this document is to establish specific minimum equipment requirements for automotive refrigerant recovery/recycling/recharge equipment intended for use with both R-134a and R-1234yf in a common refrigerant circuit. Establishing such sp
7、ecifications will assure that this equipment does not cross contaminate refrigerant above specified limits when used under normal operating conditions. 1. SCOPE The purpose of this SAE Standard is to establish the specific minimum equipment requirements for recovery/recycling/recharge equipment inte
8、nded for use with both R-1234yf and R-134a in a common refrigerant circuit that has been directly removed from, and is intended for reuse in, mobile air-conditioning (A/C) systems. This document does not apply to equipment used for R-1234yf and R-134a having a common enclosure with separate circuits
9、 for each refrigerant, although some amount of separate circuitry for each refrigerant could be used. 2. REFERENCES 2.1 Applicable Documents The following publications form a part of this specification to the extent specified herein. Unless otherwise indicated, the latest issue of SAE publications s
10、hall apply. 2.1.1 SAE Publications Available from SAE International, 400 Commonwealth Drive, Warrendale, PA 15096-0001, Tel: 877-606-7323 (inside USA and Canada) or +1 724-776-4970 (outside USA), www.sae.org. SAE J639 Safety Standards for Motor Vehicle Refrigerant Vapor Compression Systems SAE J2099
11、 Standard of Purity for Recycled R-134a (HFC-134a) and R-1234yf (HFO-1234yf) for Use in Mobile Air-conditioning Systems SAE J2196 Service Hose for Automotive Air-Conditioning SAE J2197 Hfc-134a (R-134a) Service Hose Fittings for Automotive Air-Conditioning Service Equipment SAE J2762 Method for Remo
12、val of Refrigerant from Mobile Air Conditioning System to Quantify Charge Amount SAE INTERNATIONAL J3030 Revised JUL2015 Page 2 of 13 SAE J2776 Refrigerant Purity and Container Requirements for New HFC-134a 1,1,1,2 -Tetrafluorethane Refrigerant Used in Mobile Air-Conditioning Systems SAE J2788 HFC-1
13、34a (R-134a) Recovery/Recycle/Recharging Equipment for Mobile Air-Conditioning Systems. SAE J2843 R-1234yf HFO-1234yf Recovery/Recycling/Recharging Equipment for Flammable Refrigerants for Mobile Air Conditioning Systems SAE J2844 R-1234yf (HFO-1234yf) New Refrigerant Purity and Container Requiremen
14、ts for use in Mobile Air-Conditioning Systems SAE J2888 R-1234yf Service Hose, Fittings and Couplers for Mobile Refrigerant Systems Service Equipment SAE J2911 Procedure for Certification that Requirements for Mobile Air Conditioning System Components, Service Equipment, and Service Technician Train
15、ing Meet SAE J Standards SAE J2912 Performance Requirements for R-134a and R-1234yf Refrigerant Diagnostic Identifiers (RDI) for Use with Mobile Air Conditioning Systems SAE J2927 R-1234yf Refrigerant Identifier Installed in Recovery and Recycling Equipment for Use with Mobile A/C Systems SAE J2913
16、R-1234yf HFO-1234yf Refrigerant Electronic Leak Detectors, Minimum Performance Criteria 2.1.2 Compressed Gas Association (CGA) Publication Available from CGA, 1235 Jefferson Davis Highway, Arlington, VA 22202. CGA Pamphlet S-1.1Pressure Relief Device Standard Part 1 - Cylinders for Compressed Gases
17、2.1.3 DOT Publication Available from the Superintendent of Documents, U.S. Government Printing Office, Washington, DC 20402. CFR 49, Section 173.304 Shippers - General Requirements for Shipments and Packagings SAE J2912 Performance Requirements for R-134a and R-1234yf Refrigerant Diagnostic Identifi
18、ers for Use with Mobile Air Conditioning Systems. 2.1.4 UL PUBLICATIONS Available from UL, 333 Pfingsten Road, Northbrook, IL 60062-2096, Tel: 847-272-8800, . UL 991 Standard for Tests for Safety Related Controls in Employing Solid-State Devices UL 1769 Cylinder Valves UL 1963 Refrigerant Recovery/R
19、ecycling Equipment, Version 4, subject to the four exceptions of SAE J2843, 2.1.4 UL 60730 Standard for Automatic Electrical Circuits for Household and Similar Use, Part 1, General Requirements. SAE INTERNATIONAL J3030 Revised JUL2015 Page 3 of 13 2.2 Other Publications ANSI/ISA 12:12.01 Current rev
20、ision. Non-incendive Electrical Equipment for Use in Class I and II, Division 2 and Class III Divisions 1 and 2 Hazardous (Classified) Locations (these standards reference NFPA-70 NFPA-497 3. SPECIFICATION AND GENERAL DESCRIPTION 3.1 The equipment shall be suitable for use in an automotive service g
21、arage environment and be capable of continuous operation in ambient temperatures from 10 to 49 C. 3.2 The equipment must be certified that it meets this standard by a certifying Laboratory as listed by the EPA administrator as identified under U.S. EPA 40 CFR Ch. 1 (7-01-08 edition) 82.38. 3.3 The e
22、quipment must meet all feature content and functional requirements of both SAE J2788 for R-134a and SAE J2843 for R-1234yf, and pass all test requirements of these standards. In addition, it must pass a changeover test to determine that any refrigerant cross-contamination is within the limits of thi
23、s standard, as described in Section 6 of this document. A changeover mode, beginning with a clearing procedure to minimize the amount of residual refrigerant in the plumbing lines, may be specified immediately prior to the test, which is described in Sections 5, 6. 3.3.1 The laboratory may test R-13
24、4a for SAE J2788 and SAE J2843 for R-1234yf in either order. Before proceeding to the second refrigerant and following the second refrigerant but prior to the cross-contamination test, it must ensure the machine has been cleared of either choice for the first refrigerant using laboratory equipment o
25、f confirmed performance capability for the changeover mode previously described. It may not rely on the clearing procedure built into the machine by the equipment manufacturer, as this will not be validated until the entire SAE J3030 procedure has been completed. 3.4 The equipment shall have a label
26、 which states “Design Certified by (Certifying Laboratory) to meet SAE J3030 for recovering, recycling and recharging R-1234yf or R134a using common refrigerant circuits, design certified to meet SAE J2788 certified for high-voltage service, when configured for R-134a. Design certified to meet SAE J
27、2843 when configured for R-1234yf. Label shall use bold-type letters a minimum of 3 mm in height. 4. EQUIPMENT REQUIREMENTS FOR MACHINES DESIGNED TO USE BOTH REFRIGERANTS ON AN ONGOING BASIS 4.1 General 4.1.1 The equipment shall have an electronically-controlled electro-mechanical lockout to permit
28、the recovery, recycle, recharge sequence of either R-1234yf or R-134a, based on a sample from the vehicle system and a subsequent readout of the appropriate refrigerant from an identifier that meets SAE J2912. If it determines that the vehicle does not contain R-1234yf or R-134a in the required puri
29、ty, it shall not permit refrigerant recovery. 4.1.2 The equipment shall have a pre-select feature, so the operator can pick the refrigerant system he wishes to service. As a default, the equipment shall retain in non-volatile memory the refrigerant in the last system serviced, and display it when th
30、e machine is turned on, either as an externally-obvious mechanical setup, or by electronic display if the setup is internal. If the refrigerant service setup of the machine is different from the vehicle to be serviced, the machine shall require performing of the equipment manufacturers specified cle
31、aring procedure. If the refrigerant is the same as in the previous operation of the machine, no clearing procedure will be necessary. SAE INTERNATIONAL J3030 Revised JUL2015 Page 4 of 13 4.1.3 Test To establish basic eligibility for certification to this standard, the equipment shall be tested by th
32、e certifying laboratory to ensure it responds appropriately to the refrigerant identifiers signal using the following steps. The analyzer in this test shall be one certified to SAE J2912. 1. The machine shall be set to R-134a mode with an active SAE J2912-compliant refrigerant analyzer (also set to
33、R-134a mode if necessary) attached internally or SAE J2912 attached externally 2. The machine or analyzer shall be connected to an R-134a source by the certifying laboratory to verify that the machine accepts the refrigerant analyzer signal and allows recovery of that refrigerant. 3. With the machin
34、e in R-134a mode, the machine and/or external analyzer shall be connected to an R-1234yf source to verify that the machine accepts the refrigerant analyzer R-12347yf signal and prevents recovery of the R-1234yf refrigerant. 4. The machine and/or analyzer if necessary shall be set to R-1234yf mode wi
35、th an active internal or external refrigerant analyzer attached to an R-1234yf source, The certifying laboratory shall test to ensure the analyzer instructs the machine to enter R-1234yf mode and that the machine accepts the analyzer signal and allows recovery of that refrigerant. 5. With the machin
36、e in R-1234yf mode, the machine or analyzer shall be connected to an R-134a source to verify that the machine accepts the R-1234yf refrigerant analyzer signal and prevents recovery of the R-134a refrigerant. 4.1.3.1 A physical means shall be provided to prevent recycle or recharge into both an R1234
37、yf and R134a mobile air conditioning system concurrently. The certifying laboratory shall inspect for its presence and ensure it operates for this purpose. 4.1.4 The machine shall not be equipped with refrigerant oil injection. 4.1.5 Transfer of Recycled Refrigerant Recycled refrigerant for rechargi
38、ng and transfer shall be taken from the liquid phase only. 4.2 Seat Leakage Tests 4.2.1 Valves, including electrically operated solenoid valves, that are used to isolate R-1234yf and R-134a refrigerant circuits, shall have a seat leakage rate below 4 g/year (0.15 oz/year) before and after 100,000 cy
39、cles of operation. This endurance test shall be conducted with R-134a and R-1234yf at maximum operating pressure that would be encountered during the recycling procedures for SAE J2788 and SAE J2843. The Seat Leakage Tests shall be performed at 1.5 times this pressure at an ambient of 21-24 C. These
40、 tests may be performed by the manufacturer/supplier of the parts and validating data supplied to the independent testing laboratory certifying the equipment to this standard. 4.3 Interlocks 4.3.1 Electrical interlock devices that are used to prevent cross contamination of refrigerant shall be opera
41、ted for 100 000 cycles and there shall be no failure that would permit cross contamination of refrigerant. Solid state interlock devices shall comply with the requirements for a Class B Control Function per the Standard for Automatic Electrical Circuits for Household and Similar Use, Part 1 General
42、Requirements UL 60730 -1. SAE INTERNATIONAL J3030 Revised JUL2015 Page 5 of 13 4.4 Equipment requirements for machines designed for a one-time changeover 4.4.1 Although the manufacturer may use an approach that includes mechanical or electro-mechanical switching, it also may choose to offer a conver
43、sion kit for the changeover. This kit must be designed to be tamper-resistant, in that once converted, the machine cannot be retrofitted to the first refrigerant. So that the tamper resistance should result in a machine that can only be serviced with parts for the refrigerant to which it was changed
44、. The test laboratory certifying the equipment to this standard shall execute the changeover and evaluate it for what it can reasonably consider tamper resistance. 5. TESTING The testing shall be separated into three modes, so that a failure in any one permits the equipment manufacturer to identify
45、and address the applicable issue. However, the only mode for which a separate retest is permitted is the changeover. The test fixture shown as Figure 1 in SAE J2843, or a functional equivalent, should be used. Although a clearing procedure between the tests for SAE J2788 and SAE J2843 is permitted,
46、the laboratory shall perform testing for one of these two standards, then clear the machine per 3.3.1, as the equipment makers clearing procedure is not validated until the final test for cross-contamination. If the machine meets the standard for one refrigerant, following its validated clearing pro
47、cedure, the laboratory may proceed to perform the testing for the second standard. However, the cross-contamination test described in 6.2 must be performed last. 5.1 Equipment shall be tested in sequence as noted in SAE J2843 and SAE J2788, and only following successful completion of all testing to
48、those standards, shall it undergo the changeover test to ensure there is no excessive cross-contamination, following the sequence in section 6 6. REFRIGERANT CROSS CONTAMINATION TEST 6.1 General 6.1.1 For test validation, the equipment is to be operated according to the manufacturers instructions. 6
49、.2 Test Cycle The following method shall be used after the tests and requirements for SAE J2788 and J2843 are completed. If the machine has separate onboard tanks, one for each refrigerant, the laboratory shall ensure they are empty prior to beginning the cross-contamination testing. Following the manufacturers instructions, the equipment shall be cleared of R - 134a, prior to beginning step a. The test fixture shown in
