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 2007 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: 724-776-4970 (outside USA)
4、 Fax: 724-776-0790 Email: CustomerServicesae.org SAE WEB ADDRESS: http:/www.sae.org J2810 ISSUED OCT2007 SURFACE VEHICLE STANDARD Issued 2007-10 Superseding J1732 NOV1998 HFC-134a (R-134a) Refrigerant Recovery Equipment for Mobile Automotive Air-Conditioning Systems RATIONALE Not applicable. FOREWOR
5、D Because of environmental concerns, SAE J2788 recovery/recycle standard established more stringent equipment performance features and requirements for on-site recovery, recycle and recharge of HFC-134a (R-134a) in mobile air-conditioning (A/C) systems. This standard is for HFC-134a (R-134a) recover
6、y (extraction)-only equipment that is intended to be used in conjunction with the on-site recovery/recycling (R/R) equipment used at service facilities, for off-site refrigerant reclamation or other environmentally legal use, such as destruction of refrigerants or in another compound. 1. SCOPE The p
7、urpose of this SAE Standard is to provide minimum performance and operating feature requirements for the recovery of HFC-134a (R-134a) refrigerant to be returned to a refrigerant reclamation facility that will process it to the appropriate ARI 700 Standard or allow for recycling of the recovered ref
8、rigerant to SAE J2788 specifications by using SAE J2788-certified equipment. It is not acceptable that the refrigerant removed from a mobile air-conditioning (A/C) system with this equipment be directly returned to a mobile A/C system. This information applies to equipment used to service automobile
9、s, light trucks, and other vehicles with similar HFC-134a (R-134a) A/C systems. 1.1 Improved refrigerant recovery equipment is required to ensure adequate refrigerant recovery to reduce emissions and provide for accurate recharging of mobile air conditioning systems. Therefore, 12 months following t
10、he publication date of these standard, it supercedes, SAE J1732. 2. REFERENCES 2.1 Applicable Publications The following publications form a part of the specification to the extent specified herein. Unless otherwise indicated, the latest revision of SAE publications shall apply. Copyright SAE Intern
11、ational Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-SAE J2810 Issued OCT2007 - 2 - 2.1.1 SAE Publications Available from SAE, 400 Commonwealth Drive, Warrendale, PA 15096-0001, Tel: 877-606-7323 (inside USA and Canada) or 7
12、24-776-4970 (outside USA), www.sae.org. SAE J639 Safety Standards for Motor Vehicle Refrigerant Vapor Compressions Systems SAE J1739 Potential Failure Mode and Effects Analysis in Design (Design FMEA) and Potential Failure Mode and Effects Analysis in Manufacturing and Assembly Processes (Process FM
13、EA) and Effects Analysis for Machinery (Machinery FMEA) SAE J1771 Criteria for Refrigerant Identification Equipment for Use with Mobile Air-Conditioning Systems SAE J2196 Service Hose for Automotive Air Conditioning SAE J2296 Retest of Refrigerant Container SAE J2788 HFC-134a (R-134a) Recovery/Recyc
14、ling Equipment and Recovery/Recycling/Recharging for Mobile Air-Conditioning Systems 2.1.2 ARI Publication Available from Air-Conditioning and Refrigeration Institute, 4100 North Fairfax Drive, Suite 200, Arlington, VA 22203, Tel: 703-524-8800, www.ari.org. ARI 700 Specifications for Fluorocarbon Re
15、frigerants 2.1.3 CGA Publication Available from Compressed Gas Association, 4221 Walney Road, 5th Floor, Chantilly VA 20151-2923, Tel: 703-788-2700, . CGA S-1.1 Pressure Relief Device Standard Part 1Cylinders for Compressed Gases 2.1.4 DOT Specification Available from the Superintendent of Documents
16、, U.S. Government Printing Office, Mail Stop: SSOP, Washington, DC 20402-9320. CFR 49, Section 173.304 ShippersGeneral Requirements for Shipments and Packagings 2.1.5 UL Publication Available from Underwriters Laboratories Inc., 333 Pfingsten Road, Northbrook, IL 60062-2096, Tel: 847-272-8800, . UL
17、1769 Cylinder Valves 3. SPECIFICATIONS AND GENERAL DESCRIPTION 3.1 The equipment must be able to recover (extract) HFC-134a (R-134a) refrigerant from a mobile A/C system per the test procedure of Sections 7 and 8. 3.2 The equipment shall be suitable for use in an automotive service garage environmen
18、t as defined in 6.8. Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-SAE J2810 Issued OCT2007 - 3 - 3.3 Equipment Certification The equipment shall be certified by an EPA-listed laboratory to meet th
19、is standard. SAE J2810. 3.4 Label Requirements The equipment shall have a label with bold type, minimum 3 mm high, saying “Design Certified by (certifying agent, EPA listed laboratory) to meet SAE J2810 for use only with HFC-134a (R-134a). If it is to be re-used in an A/C system, the refrigerant rec
20、overed with this equipment must be processed to the appropriate ARI 700 specifications or to specifications by using equipment certified to perform to SAE J2788.” 3.5 SAE J1739 Potential Failure Mode and Effects Analysis in Design (Design FMEA), Potential Failure Mode and Effects Analysis in Manufac
21、turing and Assembly Processes (Process FMEA), and Potential Failure Mode and Effects Analysis for Machinery (Machinery FMEA) shall be applied to the design and development of service equipment. 4. SAFETY REQUIREMENTS 4.1 The equipment must comply with applicable federal, state, and local requirement
22、s on equipment related to the handling of HFC-134a (R-134a) material. Safety precautions or notices, labels, related to the safe operation of the equipment shall also be prominently displayed on the equipment and should state “CAUTIONSHOULD BE OPERATED ONLY BY CERTIFIED PERSONNEL.“ The safety identi
23、fication shall be located on the front near the controls. 4.2 The equipment must comply with applicable safety standards for the electrical and mechanical systems. 5. OPERATING INSTRUCTIONS 5.1 The equipment manufacturer must provide operating instructions that include information required by SAE J6
24、39, necessary maintenance procedures, and source information for replacement parts and repair. 5.1.1 The instruction manual shall include the following information on the lubricant removed. Only new lubricant, as identified by the system manufacturer, should be replaced in the mobile A/C system. Rem
25、oved lubricant from the system and/or the equipment shall be disposed of in accordance with the applicable federal, state, and local procedures and regulations. 5.2 The equipment must prominently display the manufacturers name, address, the type of refrigerant it is designed to extract (R-134a), a s
26、ervice telephone number, and any items that require maintenance or replacement that affect the proper operation of the equipment. Operation manuals must cover information for complete maintenance of the equipment to assure proper operation. 5.3 The equipment manufacturer shall provide a warning in t
27、he instruction manual regarding the possibility of refrigerant contamination from hydrocarbons, leak sealants and refrigerants other than R-134a in the mobile A/C system being serviced. 5.4 Recovery equipment having refrigerant identification equipment shall meet the requirements of SAE J1771. 5.5 R
28、ecovery equipment not having refrigerant identification capability shall have instructions warning the technician that failure to verify that the system contains only R-134a potentially exposes him or her to danger from flammable refrigerants and health hazards from toxic refrigerants. The instructi
29、ons also shall alert to possible contamination problems to the recovery equipment from sealants and refrigerants other than R-134a, and to the fact that a refrigerant other than R-134a would require special handling by someone with specific expertise and equipment. Copyright SAE International Provid
30、ed by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-SAE J2810 Issued OCT2007 - 4 - 6. FUNCTION DESCRIPTION 6.1 The equipment must be capable of continuous operation in ambient temperatures of 10 C (50 F) to 49 C (120 F). Continuous is de
31、fined as completing recovery operation with no more than a brief reset between servicing vehicles, and shall not include time delays for allowing a system to outgas (which shall be part of the recovery period provided by this standard). 6.1.1 The equipment shall demonstrate ability to recovery a min
32、imum of 95.0% of the refrigerant from the test vehicle in 30.0 minutes or less, without prior engine operation (for previous eight hours minimum), external heating or use of any device (such as shields, reflectors, special lights, etc.), which could heat components of the system. The recovery proced
33、ure shall be based on a test at 21 C to 24 C (70 F to 75 F) ambient temperature. The test system for qualifying shall be a 1.4 kg (3.0 lbs) capacity orifice tube/accumulator system in a 2005-07 Chevrolet Suburban with front and rear A/C or the test option described in Section 9. 6.1.2 The equipment
34、shall demonstrate ability to recover a minimum of 85% of the refrigerant from the test vehicle or system of 6.1.1. in 30.0 minutes or less, at an ambient temperature of 10 C to 13 C (50 F to 55 F), subject to the same restrictions regarding engine operation and external heating. 6.1.3 During recover
35、y operation, the equipment shall provide overfill protection so that the liquid fill of the storage container does not exceed 80% of the tanks rated volume at 21 C (70 F). This will ensure that the container meets Department of Transportation (DOT) Standard, CFR Title 49, Section 173.304 and the Ame
36、rican Society of Mechanical Engineers. 6.1.4 Portable refillable tanks or containers used in conjunction with this equipment must be labeled “HFC-134a (R-134a) and meet applicable Department of Transportation (DOT) or Underwriters Laboratories (UL) Standards, and incorporate fittings per SAE J2197.
37、6.1.5 The cylinder valves shall comply with the standard for cylinder valves UL 1769. 6.1.6 The pressure relief device shall comply with the Pressure Relief Device Standard Part 1Cylinders for Compressed Gasses CGA Pamphlet S-1.1. 6.1.7 The tank assembly shall be marked to indicate the first retest
38、date, which shall be five years from the date of manufacture. The marking shall indicate that retest must be performed every subsequent five years. SAE J2296 provides an inspection procedure. The marking shall be in letters at least 6 mm (0.25 in) high. If ASME tanks, as defined in UL-1963, are used
39、, they are exempt from the retest requirements. 6.2 If the marketer permits use of a refillable refrigerant tank, a method must be provided (including any necessary fittings) for transfer to a system that ensures proper handling (recycling or other, environmentally-legal disposal). Restricting the e
40、quipment to use of non-refillable tanks eliminates compliance with this provision. 6.3 Prior to testing under this standard, the equipment must be preconditioned with a minimum of 13.6 kg of the standard contaminated HFC-134a (R-134a) at an ambient of 21 C before starting the test cycle. Sample amou
41、nts are not to exceed 1.13 kg with sample amounts to be repeated every 5 min. The test fixture shown in Figure 1 shall be operated at 21 C. Contaminated HFC-134a (R-134a) samples shall be processed at ambient temperatures of 10 C and 49 C (50 F to 120 F), without the equipment shutting down due to a
42、ny safety devices employed in this equipment. 6.3.1 Contaminated HFC-134a (R-134a) sample shall be standard contaminated HFC-134a (R-134a) refrigerant, 13.6 kg sample size, consisting of liquid HFC-134a (R-134a) with 1300 ppm (by weight) moisture at 21 C (70 F) and 45 000 ppm (by weight) of oil (pol
43、yalkylene glycol oil with 46-160 cst viscosity at 40 C) and 1000 ppm by weight of noncondensable gases (air). 6.3.2 Portable refillable containers used in conjunction with this equipment must meet applicable DOT Standards. The color of the container must be blue with a yellow top to indicate the con
44、tainer holds used HFC-134a (R-134a) refrigerant. The container must be permanently marked on the outside surface in black print at least 20 mm high, “CONTAMINATED HFC-134a (R-134a)DO NOT USE, MUST BE REPROCESSED.“ Copyright SAE International Provided by IHS under license with SAENot for ResaleNo rep
45、roduction or networking permitted without license from IHS-,-,-SAE J2810 Issued OCT2007 - 5 - FIGURE 1 - TEST FIXTURE 6.3.3 The portable refillable container shall have a 1/2 in ACME thread. 6.4 Additional Storage Tank Requirements 6.4.1 The cylinder valve shall comply with UL 1769. 6.4.2 The pressu
46、re relief device shall comply with CGA Pamphlet S-1.1. 6.5 All flexible hoses must meet SAE J2196 for service hoses. 6.6 Service hoses must have shutoff devices located at the connection points to the system being serviced to minimize introduction of noncondensable gases into the recovery equipment
47、during connection and the release of the refrigerant during disconnection. Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-SAE J2810 Issued OCT2007 - 6 - 6.7 The equipment must be able to separate th
48、e lubricant from recovered refrigerant and accurately indicate the amount removed from the simulated automotive system during processing in 20 mL (0.7 fl oz) units. 6.7.1 The purpose of indicating the amount of lubricant removed is to ensure that a proper amount of new lubricant is returned to the mobile A/C system for compressor lubrication, if the system is to be charged with equipment meeting SAE J2788. 6.7.2 Refrigerant dissolved in this lubricant must be accounted for to prevent lubricant overcharge of the mobile A/C system. 6.8 The equip
