1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL 207 Refrigerant-Containing Components and Accessories, NonelectricalUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM ULUL COPYRIGHTED M
2、ATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL Standard for Safety for Refrigerant-Containing Components and Accessories, Nonelectrical, UL 207 Eighth Edition, Dated April 20, 2009 Summary of Topics This revision to ANSI/UL 207 includes: 1. Correction t
3、o ANSI approval date on the title page Text that has been changed in any manner or impacted by ULs electronic publishing system is marked with a vertical line in the margin. Changes in requirements are marked with a vertical line in the margin and are followed by an effective date note indicating th
4、e date of publication or the date on which the changed requirement becomes effective. The new and revised requirements are substantially in accordance with Proposal(s) on this subject dated February 7, 2014. Revisions dated June 27, 2014 are strictly editorial and were not proposed. For further info
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8、or this Standard, regardless of the form of the claim. Users of the electronic versions of ULs Standards for Safety agree to defend, indemnify, and hold UL harmless from and against any loss, expense, liability, damage, claim, or judgment (including reasonable attorneys fees) resulting from any erro
9、r or deviation introduced while purchaser is storing an electronic Standard on the purchasers computer system. The requirements in this Standard are now in effect, except for those paragraphs, sections, tables, gures, and/or other elements of the Standard having future effective dates as indicated i
10、n the note following the affected item. The prior text for requirements that have been revised and that have a future effective date are located after the Standard, and are preceded by a SUPERSEDED REQUIREMENTS notice. JUNE 27, 2014 UL 207 tr1UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPROD
11、UCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL JUNE 27, 2014 UL 207 tr2 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL APRIL 20, 2009 (Title Page Reprinted: June 27, 2014) 1 UL 207 Standard for Refrigerant-Containing
12、Components and Accessories, Nonelectrical The First edition was titled Refrigerant-Containing Components and numbered, UL 207 (C). First Edition January, 1954 Second Edition October, 1973 Third Edition May, 1975 Fourth Edition January, 1982 Fifth Edition December, 1986 Sixth Edition March, 1993 Seve
13、nth Edition November, 2001 Eighth Edition April 20, 2009 This ANSI/UL Standard for Safety consists of the Eighth Edition including revisions through June 27, 2014. The most recent designation of ANSI/UL 207 as an American National Standard (ANSI) occurred on June 12, 2014. ANSI approval for a standa
14、rd does not include the Cover Page, Transmittal Pages, Title Page, or effective date information. The Department of Defense (DoD) has adopted UL 207 on April 30, 1976. The publication of revised pages or a new edition of this Standard will not invalidate the DoD adoption. Comments or proposals for r
15、evisions on any part of the Standard may be submitted to UL at any time. Proposals should be submitted via a Proposal Request in ULs On-Line Collaborative Standards Development System (CSDS) at http:/. ULs Standards for Safety are copyrighted by UL. Neither a printed nor electronic copy of a Standar
16、d should be altered in any way. All of ULs Standards and all copyrights, ownerships, and rights regarding those Standards shall remain the sole and exclusive property of UL. COPYRIGHT 2014 UNDERWRITERS LABORATORIES INC. ANSI/UL 207-2014UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION
17、OR DISTRIBUTION WITHOUT PERMISSION FROM UL JUNE 13, 2014 UL 207 2 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL CONTENTS INTRODUCTION 1 Scope .5 2 General 5 2.1 Components .5 2.2 Units of Measurement .6 2.3 Terminology
18、.6 2.4 Undated References 6 2.5 Refrigerants 6 3 Glossary .6 3.1 General .6 3.2 Refrigerant-containing components .6 3.3 Accessories 7 3.4 Terminology .8 CONSTRUCTION 4 Materials 11 5 Refrigerant Tubing .11 REFRIGERANT-CONTAINING PARTS 6 General .13 7 Pressure Vessels 13 8 Pressure Relief 14 9 Relie
19、f Valves 15 10 Fusible Plugs or Rupture Members .16 DESIGN PRESSURE 11 General 16 PERFORMANCE 12 General 18 12.1 Refrigerant-containing parts: high side 18 12.2 Refrigerant-containing parts: low side 18A 12.3 Water-containing parts .18B 12.4 Heat exchanger vented interface test .19 13 Strength Tests
20、 21 14 Fatigue Test .21 14.1 General .21 14.2 Test method .22 14.3 Cycle test specication 22 15 Rupture Member Test .24 16 Fusible Plug Test .24 17 Regulating Relief Valve Endurance Test .25 18 10-Day Moist Ammonia Air Stress Cracking Test .25 18A Moist Ammonia Air Stress Cracking Test .25 18A.1 Gen
21、eral 25 JUNE 13, 2014 UL 207 3UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 18A.2 10-Day moist ammonia air stress cracking test .26 18A.3 24-Hour moist ammonia air stress cracking test 26 19 Marking Plate Adhesion Tests 26A 19.1 General 26
22、A 19.2 Oven aging 27 19.3 Immersion .27 19.4 As-received 27 MANUFACTURING AND PRODUCTION TESTS 20 General 27 21 Production Fatigue Test .28 MARKING 22 General 29 23 Heat Exchangers, Fusible Plugs and Rupture Members .32 24 Components For Use With Carbon Dioxide (R744) In A Secondary Loop Or Cascade
23、System .32 JUNE 13, 2014 UL 207 4UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL INTRODUCTION 1 Scope 1.1 These requirements cover nonelectrical refrigerant-containing components and accessories, intended for eld installation in accordance w
24、ith the Safety Code for Mechanical Refrigeration, ASHRAE 15, in refrigeration systems, air conditioning equipment, or both, charged with the refrigerants identied for use in the component or accessory. The requirements also apply to components and accessories intended for use by manufacturers in fac
25、tory-assembled systems or units, in which case the component or accessory is also judged under the requirements for the individual system or unit. 1.2 These requirements do not apply to: a) Electric valves and electric refrigeration controllers, hermetic refrigerant motor-compressors, tubing ttings
26、such as are or compression type ttings, and the like, which are covered in or as part of separate, individual requirements. b) Electrical components of assemblies incorporating these refrigerant-containing components or accessories, and c) Pressure vessels bearing the ASME Code “U” symbol which are
27、within the Scope of the ASME Boiler and Pressure Vessel Code, Section VIII. 2 General 2.1 Components 2.1.1 Except as indicated in 2.1.2, a component of a product covered by this standard shall comply with the requirements for that component. 2.1.2 A component is not required to comply with a specic
28、requirement that: a) Involves a feature or characteristic not required in the application of the component in the product covered by this standard, or b) Is superseded by a requirement in this standard. 2.1.3 A component shall be used in accordance with its rating established for the intended condit
29、ions of use. 2.1.4 Specic components are incomplete in construction features or restricted in performance capabilities. Such components are intended for use only under limited conditions, such as certain temperatures not exceeding specied limits, and shall be used only under those specic conditions.
30、 APRIL 20, 2009 UL 207 5UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 2.2 Units of Measurement 2.2.1 Values stated without parentheses are the requirement. Values in parentheses are explanatory or approximate information. 2.3 Terminology 2
31、.3.1 As used in this standard, the term “component” refers to a refrigerant-containing component or accessory unless otherwise specied. 2.4 Undated References 2.4.1 Any undated reference to a code or standard appearing in the requirements of this standard shall be interpreted as referring to the lat
32、est edition of that code or standard. 2.5 Refrigerants 2.5.1 The kind of refrigerant employed in the system shall comply with the Standard for Refrigerants, UL 2182. 3 Glossary 3.1 General 3.1.1 For the purpose of this standard the following denitions apply. 3.2 Refrigerant-containing components 3.2
33、.1 ACCUMULATOR A storage chamber for low side liquid refrigerant; also known as surge drum, surge header. Also, a pressure vessel whose volume is used in a refrigerant circuit to reduce pulsation. 3.2.2 COMPRESSOR, OPEN-TYPE A refrigerant compressor with a shaft or other moving part extending throug
34、h its casing to be driven by an outside source of power thus requiring a shaft seal or equivalent rubbing contact between a xed and moving part. 3.2.3 CONDENSER COIL A condenser constructed of pipe or tubing other than a shell and tube or shell and coil type. 3.2.4 CONDENSER, SHELL-AND-TUBE (OR SHEL
35、L-AND-COIL) A condenser in which a nest of tubes or pipes, or a coil of tube or pipe, is contained in a shell. The tube(s) or pipe(s) carries uid through it while the shell is also provided with an inlet and outlet for uid ow. 3.2.5 CONDENSER, TUBE-IN-TUBE Consists of one or more assemblies of two t
36、ubes, one within the other, in which the refrigerant vapor is condensed either in the annular space or in the inner tube. 3.2.6 CONDENSER, WATER-COOLED An assembly of elements by which the ows of the refrigerant vapor and water are maintained in such a heat transfer relationship that the refrigerant
37、 vapor is condensed into a liquid and the water is heated. 3.2.7 DRIER A device containing a desiccant placed in the refrigerant circuit, its primary purpose being to collect and hold within the desiccant all water in the system in excess of the amount which can be tolerated in the circulating refri
38、gerant. APRIL 20, 2009 UL 207 6UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 3.2.8 EVAPORATOR COIL An evaporator constructed of pipe or tubing other than a shell-and-tube or shell-and-coil type. 3.2.9 FILTER A device intended to remove sol
39、id material from a uid. 3.2.10 HEAT EXCHANGER (INTERCHANGER) A device specically designed to transfer heat between refrigerant in the high side and low side of the system. 3.2.11 LIQUID RECEIVER A vessel permanently connected to a system by inlet and outlet pipes for the storage of liquid refrigeran
40、t. 3.2.12 MUFFLER Intended to dampen or remove hot gas pulsations set-up by a compressor, inserted in the discharge line as close to the compressor as is practical. 3.2.13 OIL SEPARATOR A device for separating oil and oil vapor from the refrigerant, usually installed in the compressor discharge line
41、. 3.2.14 STRAINER A device for withholding foreign matter from a owing liquid or gas. 3.2.15 VIBRATION ELIMINATOR Device made of either a coil of refrigerant tubing or exible metallic hose and designed to prevent the transmission of noise and vibration from a motor-compressor through the refrigerati
42、on or air conditioning piping. The device can be installed in either the suction or discharge lines, or both. 3.2.15 added July 12, 2013 3.3 Accessories 3.3.1 FUSIBLE PLUG A device having a predetermined-temperature fusible element for the relief of pressure. 3.3.1 revised July 12, 2013 3.3.2 LIQUID
43、 INDICATOR A device located in the liquid line of a refrigerating system and having a sight port by which liquid ow may be observed. 3.3.3 PRESSURE REGULATING RELIEF VALVE Similar to a pressure relief valve except specically intended for use with refrigeration systems utilizing carbon dioxide (R744)
44、 as the refrigerant. The pressure relief setting of this valve is always lower than the relief setting of a pressure relief valve. This valve may open and re-close many times during the life of the system. 3.3.4 PRESSURE-RELIEF DEVICE A pressure actuated valve or rupture member designed to automatic
45、ally relieve excessive pressure. 3.3.5 PRESSURE-RELIEF VALVE A pressure actuated valve held closed by a spring or other means and designed to automatically relieve pressure in excess of its setting. 3.3.6 RUPTURE MEMBER A device which will rupture at a predetermined pressure. 3.3.7 VALVE, CHARGING A
46、 valve used to charge or add refrigerant to the system, or add oil to the compressor crankcase. 3.3.8 VALVE, CHECK A valve allowing (uid) ow in one direction only. JULY 12, 2013 UL 207 7UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 3.3.9 V
47、ALVE, STOP A device intended to shut off the ow of refrigerant. 3.4 Terminology 3.4.0 CAPILLARY TUBE Device made of tubing with an outer diameter less than 3/16 in. (4.7 mm) and used to reduce the pressure of the refrigerant between the condenser and evaporator. It also regulates the refrigerant ow.
48、 3.4.0 added July 12, 2013 3.4.1 CASCADE SYSTEM A refrigeration system that incorporates two or more independent vapor- compressor refrigeration cycles in series. This is done to acquire low temperatures that may not be readily achieved with a single refrigeration cycle. 3.4.2 CONDENSER That part of
49、 the system designed to liquefy refrigerant vapor by removal of heat. 3.4.3 CRITICAL PRESSURE, CRITICAL TEMPERATURE AND CRITICAL VOLUME Terms given to the state points of a substance at which liquid and vapor have identical properties. Above the critical pressure or critical temperature there is no line of demarcation between liquid and gaseous phases. 3.4.4 DESICCANT Any adsorbent that removes water or water vapor
