1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL 399 Drinking Water CoolersUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM ULUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODU
2、CTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL Standard for Safety for Drinking-Water Coolers, UL 399 Seventh Edition, Dated August 22, 2008 SUMMARY OF TOPICS These revisions to ANSI/UL 399 include the following: 1. Revision and addition of requirements for switches and controllers 2. Revision
3、to ammable refrigerant requirements based on EPA Signicant New Alternatives Policy (SNAP) 3. Clarications and miscellaneous revisions 4. Maximum operating current and maximum rated current requirements 5. Correction to gasket requirements 6. Editorial correction for electronically protected motors 7
4、. Revisions to refrigerant requirement 8. Revision to installation instructions for R744 (carbon dioxide) water coolers 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 ver
5、tical line in the margin and are followed by an effective date note indicating the date of publication or the date on which the changed requirement becomes effective. The revised requirements are substantially in accordance with Proposal(s) on this subject dated June 28, 2013 and August 30, 2013. Al
6、l rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form by any means, electronic, mechanical photocopying, recording, or otherwise without prior permission of UL. UL provides this Standard as is without warranty of any kind, either e
7、xpressed or implied, including but not limited to, the implied warranties of merchantability or tness for any purpose. In no event will UL be liable for any special, incidental, consequential, indirect or similar damages, including loss of prots, lost savings, loss of data, or any other damages aris
8、ing out of the use of or the inability to use this Standard, even if UL or an authorized UL representative has been advised of the possibility of such damage. In no event shall ULs liability for any damage ever exceed the price paid for this Standard, regardless of the form of the claim. Users of th
9、e 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 error or deviation introduced while purchaser is storing an electronic
10、 Standard on the purchasers computer system. OCTOBER 18, 2013 UL 399 tr1UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL The requirements in this Standard are now in effect, except for those paragraphs, sections, tables, gures, and/or other e
11、lements of the Standard having future effective dates as indicated in 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. The following
12、 table lists the future effective dates with the corresponding reference. Future Effective Date Reference August 1, 2014 Paragraphs 4.5, 6.1.4, 7.1.4, 8.2.1, 9.2.1, 61.22, 61.23, 21O.1 21O.3, and Section 55A OCTOBER 18, 2013 UL 399 tr2UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION O
13、R DISTRIBUTION WITHOUT PERMISSION FROM UL AUGUST 22, 2008 (Title Page Reprinted: October 18, 2013) 1 UL 399 Standard for Drinking-Water Coolers First Edition December, 1956 Second Edition November, 1968 Third Edition September, 1972 Fourth Edition July, 1978 Fifth Edition July, 1987 Sixth Edition Ju
14、ne, 1993 Seventh Edition August 22, 2008 This ANSI/UL Standard for Safety consists of the Seventh Edition including revisions through October 18, 2013. The most recent designation of ANSI/UL 399 as an American National Standard (ANSI) occurred on October 17, 2013. ANSI approval for a standard does n
15、ot include the Cover Page, Transmittal Pages, Title Page, or effective date information. Any other portions of this ANSI/UL standard that were not processed in accordance with ANSI/UL requirements are noted at the beginning of the impacted sections. Comments or proposals for revisions on any part of
16、 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 Standard should be altered in
17、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 2013 UNDERWRITERS LABORATORIES INC. ANSI/UL 399-2013UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT
18、 PERMISSION FROM UL OCTOBER 18, 2013 DRINKING WATER COOLERS - UL 399 2 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL CONTENTS INTRODUCTION 1 Scope 6B 2 General 6B 2.1 Components 6B 2.2 Units of measurement .7 2.3 Termin
19、ology .7 2.4 Undated references .7 3 Glossary .7 4 Installation And Operating Instructions 10C CONSTRUCTION 5 General .10D 6 Nonmetallic Material 10E 6.1 Classication 10E 6.2 Ignition Sources .11 6.3 Application and Location 14A 7 Assembly 14A 7.1 General .14A 7.1A Pressurized beverage product syste
20、m .14B 7.2 Mechanical protection 14B 7.3 Electrical protection 17 8 Barriers .20A 8A Accessories 20B 9 Enclosures 21 9.1 General 21 9.2 Doors and covers .24 9.3 Enclosures exposed to weather .26 10 Field Supply Connections for Permanently Connected Water Coolers .28 10.1 General .28 10.1A Terminals
21、29 10.1B Leads .30 10.2 Permanently connected water coolers 31 10.3 Cord connected water coolers .32 10.4 Grounding .32A 10A Supply Connections Cord Connected Equipment .32B 11 Internal Wiring And Wiring Methods .33 12 Separation of Circuits 36A 13 Bonding for Grounding .36B ELECTRICAL COMPONENTS 14
22、 Current-Carrying Parts 41 15 Insulating Material 41 16 Switches And Controllers 41 17 Motors .44B 17A Motor Overload Protection 46 17A.1 General 46 17A.2 Protection of single-phase nonhermetic motors .46 OCTOBER 18, 2013 DRINKING WATER COOLERS - UL 399 3UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FU
23、RTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 17A.3 Protection of single-phase hermetic refrigerant motor-compressors 47 17A.4 Protection of three-phase motors .48 17A.5 Protective electronic circuits 48 18 Electric Water Heaters .48B 18.1 Heater elements 48B 18.2 Water heater protec
24、tive device .49 19 Valves and Solenoids .50 20 Capacitors .50 21 Transformers .50A 21A Batteries and Battery Chargers 50A 21B Circuit Breakers, Fusing Resistors and Supplementary Protectors 50B 21C Connectors 50B 21D Electrical Cable, Conduit and Tubing .50B 21E Electrical Insulation Systems 50C 21F
25、 Electromagnetic Interference Filters 50C 21G Fuses and Fuseholders .50C 21H Lighting Systems 50D 21I Optical Isolators and Semiconductor Devices .50E 21J Outlet Boxes .50E 21K Power Supplies 50E 21L Receptacles .50F 21M Terminal Blocks .50F 21N Wireways, Auxiliary Gutters and Associated Fittings .5
26、1 21O Ultraviolet (UV) Radiation Systems 51 21P Across-The-Line Capacitors, Antenna-Coupling Components, Line-Bypass Components and Fixed Capacitors for Use in Electronic Equipment .51 SPACINGS 22 High-Voltage Circuits 51 23 Extra Low-Voltage Circuits .53 23A Alternate Spacings Clearances and Creepa
27、ge Distances .54 REFRIGERATION SYSTEM 24 Refrigerant .54A 25 Pump-Down Capacity 54A 26 Refrigerant Tubing and Fittings 54A 27 Refrigerant-Containing Parts .55 28 Pressure-Limiting Device 56 29 Pressure Relief .56 29.1 General .56 29.2 Required discharge capacity .56A 29.3 Relief valves .56A THERMOEL
28、ECTRIC SYSTEM 29A General .56B WATER SYSTEM 30 Pressure Relief 56B OCTOBER 18, 2013 DRINKING WATER COOLERS - UL 399 4UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL PERFORMANCE 31 General 56C 31.1 Instrumentation .56C 31.2 Additional test 56
29、D 31.3 Ambient temperature 56D 32 Tests on Nonmetallic Materials 56D 32.1 General 56D 32.2 Burnout test Impedance protected motors .60 32.3 Fastener strength test 60 33 Test Voltage .61 34 Leakage Current Test Cord Connected Water Coolers 62 35 Input Test 64A 36 Temperature and Pressure Test .64A 37
30、 Dielectric Voltage-Withstand Test 68A 38 Condenser Fan Motor Failure Test 68B 39 Condenser Water Failure Test 71 40 Overow Test 71 41 Spill Test 72 42 Rain Test 72 43 Stability Test .75 44 Static Loading Test .75 44A Ozone Test .76 44B Strain Relief Test 76A 45 Water Heating Controls Test 76A 45.1
31、Endurance test .76A 45.2 Calibration test .76B 46 Burnout Test 76B 46.1 Water heater .76B 46.2 Other components 77 46.2 Thermoelectric water coolers 77 46.3 Other components 78A 47 Overvoltage and Undervoltage Tests 78B 48 Current Overload Test Bonding Conductors and Connections 79 49 Insulation Res
32、istance Test .79 49.1 Water heaters .79 49.2 Thermal and/or acoustical insulating material 80 50 Limited Short-Circuit Test 80 50.1 General .80 50.2 Motor overload protective devices 81 50.3 Bonding conductors and connections .82 50.4 Motor circuit conductors and connections .82 51 Protective Device
33、s Maximum Continuous Current Test 82 52 Strength Tests Pressure Containing Components .84 52.1 General .84 52.2 High-side parts .85 52.3 Low-side parts .86 52.4 Leakage at gaskets or seals .86 52.5 Water-heating tanks 86 52.6 Pressurized beverage product system .86A 53 Accelerated Aging Test Electri
34、c Heaters 86A 54 Reliability Test Heater Terminations 86B 55 Accelerated Aging Tests on Gaskets, Sealing Compounds, and Adhesives .86B OCTOBER 18, 2013 DRINKING WATER COOLERS - UL 399 5UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 55A Ultr
35、aviolet Irradiance Test 88 56 Metallic Coating Thickness Test .88A 57 Marking Label Adhesion Tests .90 57.1 General .90 57.2 Oven-aging test 90 57.3 Immersion test 90A 57.4 Standard-atmosphere test 90A 57.5 Unusual-condition exposure test 90A 57A Refrigerant Identication Tests .90A 57A.1 General 90A
36、 57A.2 Infrared analysis .90A 57A.3 Gas chromatography analysis .90B MANUFACTURING AND PRODUCTION TESTS 58 Pressure Tests 90B 58A Production Fatigue Test 91 59 Production Line Dielectric Voltage-Withstand Tests .91 60 Production Line Grounding Continuity Tests 95 60A Annual Refrigerant Identication
37、.95 MARKING 61 General 95 61A Accessories .96B 62 Permanently Connected Water Coolers 96C 63 Cord Connected Water Coolers .101 SUPPLEMENT SA - SANITATION REQUIREMENTS FOR SELF CONTAINED DRINKING-WATER COOLERS INTRODUCTION SA1 Scope SA1 CONSTRUCTION SA2 Bubbler Nozzle and Guard SA1 SA3 AirGap.SA2 SA4
38、 Top or Bowl .SA2 PERFORMANCE SA5 Nozzle Flow Control Test .SA3 OCTOBER 18, 2013 DRINKING WATER COOLERS - UL 399 6UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL SUPPLEMENT SB - REQUIREMENTS FOR DRINKING WATER COOLERS EMPLOYING A FLAMMABLE R
39、EFRIGERANT IN THE REFRIGERATING SYSTEM SB1 Scope SB1 SB2 Denitions SB1 SB3 General SB2 SB4 Construction SB3 SB4.1 General SB3 SB4.2 Tubings and ttings .SB3 SB5 Performance SB4 SB5.1 Leakage test .SB4 SB5.2 Ignition test .SB7 SB5.3 Temperature test SB7 SB5.4 Scratch test SB8 SB6 Marking, Installation
40、 and Operating Instructions SB10 SB6.1 Marking .SB10 SB6.2 Installation and operating instructions .SB11 APPENDIX A APPENDIX B Clarications OCTOBER 18, 2013 DRINKING WATER COOLERS - UL 399 6AUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL IN
41、TRODUCTION 1 Scope 1.1 These requirements cover self-contained drinking-water coolers employing hermetic refrigerant motor-compressors or thermoelectric water chilling systems and designed for connection to alternating-current circuits rated not greater than 600 volts in accordance with the National
42、 Electrical Code, NFPA 70. The following types of water coolers are included within the scope of this Standard: a) Those supplying cold water or both cold and hot water; b) Battery operated; c) Those employing ammable refrigerant as dened in Supplement SB; and d) Those provided with ultraviolet (UV)
43、 radiation lamp systems in which the UV wavelengths are 200 nm or greater; however, the effectiveness of the water treatment by the UV radiation is not covered by these requirements. 1.1 revised October 18, 2013 1.2 These requirements do not include additional requirements applicable to equipment de
44、signed for use in hazardous locations as dened in the National Electrical Code, NFPA 70. 1.3 A product that contains features, characteristics, components, materials, or systems new or different from those covered by the requirements in this standard, and that involves a risk of re, electric shock,
45、or injury to persons shall be evaluated using the appropriate additional component and end-product requirements as determined necessary to maintain the acceptable level of safety as originally anticipated by the intent of this standard. A product whose features, characteristics, components, material
46、s, or systems conict with specic requirements or provisions of this standard cannot be judged to comply with this standard. Where considered appropriate, revision of requirements shall be proposed and adopted in conformance with the methods employed for development, revision, and implementation of t
47、his standard. 2 General 2.1 Components 2.1 deleted July 20, 2012 2.1.1 Deleted July 20, 2012 2.1.2 Deleted July 20, 2012 2.1.3 Deleted July 20, 2012 2.1.4 Deleted July 20, 2012 OCTOBER 18, 2013 DRINKING WATER COOLERS - UL 399 6BUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTR
48、IBUTION WITHOUT PERMISSION FROM UL 2.2 Units of measurement 2.2.1 If a value for measurement is followed by value in other units in parentheses, the second value may be only approximate. The rst stated value is the requirement. 2.3 Terminology 2.3.1 The term product as used in these requirements ref
49、ers to all drinking-water coolers or any part thereof covered by these requirements unless specically noted otherwise. 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 latest edition of that code or standard. 3 Glossary 3.1 For the purpose of this standard, the following denitions apply. 3.1.1 ACCESSORY An optional electrical device or other component, such as a supers
