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1、I r * . S T D - U L SUBJECT 29b3-ENGL 1777 = 9275775 0773877 131 = March 3, I999 1 SUBJECT 2963 OUTLINE OF INVESTIGATION FOR AUTOMOTIVE REFRIGERANT RECOVERY EQUIPMENT FOR REFRIGERANTS OTHER THAN RI2 OR R134A Issue Number: I MARCH 3, 1999 COPYRIGHT 1999 UNDERWRITERS LABORATORIES INC. Y Copyright Unde
2、rwriters Laboratories Inc. Provided by IHS under license with ULLicensee=North Carolina State University/5618801100 Not for Resale, 10/22/2006 02:39:39 MDTNo reproduction or networking permitted without license from IHS -,-,- STD-UL SUBJECT 27b3-ENGL 1799 7275795 0773900 783 2 SUBJECT 2963 MARCH 3,1
3、999 No Text on This Page I- * Copyright Underwriters Laboratories Inc. Provided by IHS under license with ULLicensee=North Carolina State University/5618801100 Not for Resale, 10/22/2006 02:39:39 MDTNo reproduction or networking permitted without license from IHS -,-,- STD.UL SUBJECT 27b3-ENGL 1999
4、9275795 0773903 bLT MARCH 3,1999 SUBJECT 2963 3 CONTENTS FOREWORD INTRODUCTION 1 Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 2 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5、 . . . . . . . . . . . . . . . . . . 5 CONSTRUCTION AND PERFORMANCE 3 General Requirements . . . . . . . . . . . . . . . . . . . . . . . . . , . . . . . . . . . . . . . . . . . . . . . . 6 4 Test Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . , . . . . . . .
6、. . . . . . 9 MARKING AND OPERATING INSTRUCTIONS 5 Marking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 6 Operating Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
7、Copyright Underwriters Laboratories Inc. Provided by IHS under license with ULLicensee=North Carolina State University/5618801100 Not for Resale, 10/22/2006 02:39:39 MDTNo reproduction or networking permitted without license from IHS -,-,- STDOUL SUBJECT 27b3-ENGL 1777 m 7275795 0773702 55b SUBJECT
8、2963 MARCH 3,1999 4 FOREWORD A. This Outline of Investigation contains basic requirements for products covered by Underwriters Laboratories Inc. (UL) under its Follow-Up Service for this category within the limitations given below and in the Scope section of this Outline of investigation. They are s
9、ubject to revision as further experience and investigation may show is necessary or desirable. B. The observance of these requirements by a manufacturer is one of the conditions of the continued coverage of the manufacturers product. C. A product which complies with the text of this Outline of Inves
10、tigation will not necessarily be judged to comply with the Outline of Investigation if, when examined and tested, it is found to have other features which impair the level of safety contemplated by these requirements. D. A product employing materials or having forms of construction which conflict wi
11、th specific requirements of the Outline of Investigation cannot be judged to comply with the Outline of Investigation. A product employing materials or having forms of construction not addressed by this Outline of Investigation may be examined and tested according to the intent of the requirements a
12、nd, if found to meet the intent of this Outline of Investigation, may be judged to comply with the Outline of Investigation. E. UL, in performing its functions in accordance with its objectives, does not assume or undertake to discharge any responsibility of the manufacturer or any other party. The
13、opinions and findings of UL represent its professional judgment given with due consideration to the necessary limitations of practical operation and state of the art at the time the Outline of Investigation is processed. UL shall not be responsible to anyone for the use of or reliance upon this Outl
14、ine of Investigation by anyone. UL shall not incur any obligation or liability for damages, including consequential damages, arising out of or in connection with the use, interpretation of, or reliance upon this Outline of Investigation. F. Many tests required by the Outline of Investigations of UL
15、are inherently hazardous and adequate safeguards for personnel and property shall be employed in conducting such tests. Copyright Underwriters Laboratories Inc. Provided by IHS under license with ULLicensee=North Carolina State University/5618801100 Not for Resale, 10/22/2006 02:39:39 MDTNo reproduc
16、tion or networking permitted without license from IHS -,-,- STD UL SUBJECT 27b3-ENGL 1777 m 7275775 0773703 472 = MARCH 3,1999 SUBJECT 2963 5 INTRODUCTION 1 Scope 1.1 This Outline covers equipment intended to recover one or more specific refrigerants other than R12 or R134a from automotive air-condi
17、tioning systems. The various refrigerants are to be EPA SNAP- accepted automotive refrigerants. The recovered refrigerant(s) is to be processed to a single or multiple storage containers. 1.2 The recovered refrigerant shall be returned to a refrigerant reclamation facility that will process it to ne
18、w product specifications or destroy it. The refrigerant removed from an automotive air-conditioning system with this equipment shall not be directly returned to an automotive air-conditioning system. 1.3 This Outline covers equipment used to service automobiles, light trucks, and other vehicles with
19、 similar air-conditioning systems. 1.4 The equipment shall be suitable for use in an automotive service garage environment. 1.5 A product that contains features, characteristics, components, materials, or systems new or different from those covered by the requirements in this Outline, and that invol
20、ves a risk of fire, electric shock, or injury to persons shall be evaluated using the appropriate additional component and end-product requirements to determine that the level of safety as originally anticipated by the intent of this Outline is maintained. A product whose features, characteristics,
21、components, materials, or systems conflict with specific requirements or provisions of this Outline shall not be judged to comply with this Outline. Where appropriate, revision of requirements shall be proposed and adopted in conformance with the methods employed for development, revision, and imple
22、mentation of this Outline. 2 General 2.1 Units of measurement 2.1.1 If a value for measurement is followed by a value in other units in parentheses, the first stated value is the requirement. 2.2 References 2.2.1 Applicable Documents - The following publications are specified in this Outline. Any un
23、dated reference to a code or standard appearing in the requirements of this Outline shall be interpreted as referring to the latest edition of that code or standard: a) SAE Publications: SAE J1771 - Criteria for Refrigerant Identification Equipment for Use with Mobile Air-Conditioning Systems Availa
24、ble from: SAE 400 Commonwealth Drive Warrendale. PA 15096-0001 Copyright Underwriters Laboratories Inc. Provided by IHS under license with ULLicensee=North Carolina State University/5618801100 Not for Resale, 10/22/2006 02:39:39 MDTNo reproduction or networking permitted without license from IHS -,-
25、,- STD-UL SUBJECT 29b3-ENGL 1999 9275795 077390i.1 327 6 SUBJECT 2963 MARCH 3,1999 b) CGA Publications: CGA Pamphlet S-I. 1 - Pressure Relief Device Standard Part 1 - Cylinders for Compressed Gases Available from: CGA 1235 Jefferson Davis Highway Arlington, VA 22202 c) IEC Publications: IEC 79-15 -
26、Electrical Apparatus for Explosive Gas Atmospheres Part 15: Electrical Apparatus with Type of Protection “N“ Available from: IEC 3, Rue De Varembe P.O. Box 131 Geneva Switzerland CH-I211 d) DOT Publications: DOT Standard, CFR Title 49, Section 173.304 - Shippers - General Requirements for Shipments
27、and Packaging Available from: Superintendent of Documents U.S. Government Printing Office Washington, DC 20402 e) UL Publications: UL 984 - Hermetic Refrigerant Motor-Compressors Subject 984A - Compatibility of Insulating Materials and RefrigeranOil for Use in Hermetic Refrigerant Motor-Compressors
28、UL 1769 - Cylinder Valves UL 1963 - Refrigerant Recovery/Recycling Equipment UL 2182 - Refrigerants Available from: Global Engineering Documents 15 Inverness Way East Englewood, CO 801 12 2.3 Glossary 2.3.1 For the purpose of this Outline, the following definition applies. 2.3.2 RECOVERY UNIT - A si
29、ngle piece of equipment that is intended to recover refrigerant from automotive air-conditioning systems. 2.4 Refrigerants 2.4.1 The refrigerants which are intended to be used by the equipment covered in this Outline shall be the published EPA SNAP-accepted refrigerants as of October, 1996. CONSTRUC
30、TION AND PERFORMANCE 3 General Requirements 3. I Refrigerant recovery only equipment shall comply with the construction requirements outlined in the Standard for Refrigerant Recovery/Recycling Equipment, UL 1963. Copyright Underwriters Laboratories Inc. Provided by IHS under license with ULLicensee=
31、North Carolina State University/5618801100 Not for Resale, 10/22/2006 02:39:39 MDTNo reproduction or networking permitted without license from IHS -,-,- MARCH 3,1999 SUBJECT 2963 7 3.2 Compatibility of motor insulation systems employed in hermetic motor compressors shall be evaluated in accordance w
32、ith the Standard for Hermetic Refrigerant Motor-Compressors, UL 984/CSA No. 140.2, or the Outline of Investigation for Compatibility of Insulating Materials and Refrigerant/Oil for Use in Hermetic Refrigerant Motor-Compressors, Subject 984A. 3.3 The refrigerant shall have: a) No limits of flammabili
33、ty, and b) Shall not have an autoignition temperature greater than 750C (1382F) in accordance with the Standard for Refrigerants, UL 2182 3.4 Equipment intended to recover one refrigerant shall be tested with this refrigerant in accordance with Section 4. 3.5 Equipment intended to recover more than
34、one refrigerant and store each refrigerant into a separate tank shall be tested in accordance with Section 4 using the refrigerant with the highest saturated vapor pressure at 49C (120F). 3.6 Equipment intended to recover more than one refrigerant into a single storage container shall be tested in a
35、ccordance with Section 4 using a refrigerant cocktail as outlined in 4.2 (a). 3.7 The refrigerant storage container shall be painted and marked in accordance with 5.2. 3.8 All flexible hoses shall be evaluated using the refrigerant) intended to be processed by the recovery equipment in accordance wi
36、th the automotive only requirements in clauses 46.3 through 46.19 of the second edition of UL 1963, Standard for Refrigerant Recovery/Recycling Equipment. 3.9 The equipment and storage container shall have service fittings for the refrigerant intended to be recovered. if the equipment is intended to
37、 recover multiple refrigerant types, it shall be provided with service hoses having unique service fittings or adapters for each refrigerant type. 3.10 Equipment shall have a storage section to receive refrigerant during a recovery operation. This storage section shall have an automatic means to cea
38、se the recovery operation when 80 percent of the volume of the storage section contains liquid refrigerant at 70F (21.1“C). There shall be an automatic means, such as a shutoff, to limit migrating liquid refrigerant from occupying more than 80 percent of the volume of the storage section(s) at 70F (
39、21.1 OC) upon termination of all recovery operation including all rapid liquid recovery methods. A weight scale shall be calibrated to provide overfill protection based on propane as the refrigerant. Exception No. I : Recovery equipment designed to recover a specific refrigerant may have a weight sc
40、ale calibrated to provide 80 percent overfill protection for that specific refrigerant. Exception No. 2: Recovery equipment designed to recover several refrigerants in separate tanks may have a single weight scale calibrated to provide 80 percent overfill protection for the infended refrigerant that
41、 has the lowest density at 21 O C (70F) or multiple scales, one for each intended refrigerant, calibrated to provide 80 percent overfill protection for the respective refrigerant. Copyright Underwriters Laboratories Inc. Provided by IHS under license with ULLicensee=North Carolina State University/5
42、618801100 Not for Resale, 10/22/2006 02:39:39 MDTNo reproduction or networking permitted without license from IHS -,-,- 8 SUBJECT 2963 MARCH 3,1999 3.1 1 The equipment shall meet requirements for: a) A Zone 2 location according to the first edition of the IEC 79-15 report, Electrical Apparatus for E
43、xplosive Gas Atmospheres, Part 15: Electrical Apparatus with Type of Protection “N“; and b) The recovery unit shall be marked in accordance with 5.4. Exception; Recovery equipment designed to recover a specific refrigerant or several refrigerants in separate tanks need not meet Zone 2 location requi
44、rements. The recovery unit shall be marked in accordance with 5.4. 3.12 The fitting at the inlet of the recovery unit shall be 112 inch pipe thread. 3.13 The equipment shall separate the lubricant from the recovered refrigerant and accurately indicate the amount removed from the simulated automotive
45、 system, described in Section 4, during processing in 30 ml units. 3.14 Service hoses shall have shutoff devices located within 30 cm (12 inches) of the connection point to the system being serviced. 3.15 Removable storage cylinders, which are not ASME marked pressure vessels, that receive the refri
46、gerant during the recovery operation shall comply with all of the following: a) The storage cylinder shall comply with DOT specifications, 49CFR, and have a service pressure rating of at least 260 psig (1.79 MPa), but not less than 80 percent of the setting of the pressure limiting device. b) The cy
47、linder valve shall comply with the Standard for Cylinder Valves, UL 1769. c) The pressure relief device shall comply with the Pressure Relief Device Standard Pari 1 - Cylinders for Compressed Gases, Compressed Gas Association Pamphlet S-I .I. d) It shall be marked according to clause 5.3. e) Elastom
48、eric materials employed on cylinder valves and relief devices that contact refrigerant shall comply with the tests specified in 66.2.1 - 66.4.1 of the second edition of UL 1963, Standard for Refrigerant RecoverylRecycling Equipment. 9 The storage cylinder shall withstand, without rupture, a pressure of four times the maximum adjustable setting of the pressure limiting devices. 3.16 The recovered refrigerant shall be returned to a refrigerant reclamation facility that will process it to new product specifications or destroy it. The refrigerant removed from an automotive ai