UL 399-2017 UL Standard for Safety Drinking Water Coolers (Eighth Edition Reprint with Revisions Through and Including May 17 2017).pdf

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1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL 399 Drinking Water Coolers STANDARD FOR SAFETYUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM ULUL COPYRIGHTED MATERIAL NOT AUTHORIZED

2、 FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL Standard for Safety for Drinking-Water Coolers, UL 399 Eighth Edition, Dated March 30, 2017 SUMMARY OF TOPICS This new edition of ANSI/UL 399 is being issued to incorporate the following changes: Addition of parameters for alter

3、native capacitor requirements in the Standard for Fixed Capacitors for Use in Electronic Equipment, UL 60384-14 Addition of start-to-discharge test to allow pressure relief valves, other than ASME stamped valves, on pressurized product systems Clarication of requirements involving ultraviolet radiat

4、ion lamps Align controls requirements with water heater controls requirements and add alternate protective electronic controls requirements Revisions to Supplement SB for drinking water coolers employing a ammable refrigerant Addition of requirements for remotely operated drinking water coolers Clar

5、ication of test enclosure requirements Addition of requirements for household drinking-water coolers incorporating button or coin cell batteries Addition of grounding symbol Editorial corrections The new and revised requirements are substantially in accordance with Proposal(s) on this subject dated

6、November 4, 2016. All 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 o

7、f any kind, either expressed 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 an

8、y other damages arising 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 th

9、e 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 error or deviation introduced while purchaser is s

10、toring an electronic Standard on the purchasers computer system. MARCH 30, 2017 UL 399 tr1UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL MARCH 30, 2017 UL 399 tr2 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPROD

11、UCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL March 30, 2017 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 June, 1993 Seventh Edition August, 2

12、008 Eighth Edition March 30, 2017 This ANSI/UL Standard for Safety consists of the Eighth Edition. The most recent designation of ANSI/UL 399 as an American National Standard (ANSI) occurred on March 30, 2017. ANSI approval for a standard does not include the Cover Page, Transmittal Pages, and Title

13、 Page. 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 the Standard may be submitted to UL at any time. Proposals should be submitted vi

14、a a Proposal Request in ULs On-Line Collaborative Standards Development System (CSDS) at https:/. ULs Standards for Safety are copyrighted by UL. Neither a printed nor electronic copy of a Standard should be altered in any way. All of ULs Standards and all copyrights, ownerships, and rights regardin

15、g those Standards shall remain the sole and exclusive property of UL. COPYRIGHT 2017 UNDERWRITERS LABORATORIES INC. ANSI/UL 399-2017UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL MARCH 30, 2017 DRINKING WATER COOLERS - UL 399 2 No Text on T

16、his PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL CONTENTS INTRODUCTION 1 Scope .8 2 Units of measurement .8 3 Undated references .9 4 Reserved for future use9 5 Glossary .9 6 Installation And Operating Instructions13 CONSTRUCTION 7 Ge

17、neral.14 8 Nonmetallic Material15 8.1 Classication15 8.2 Ignition Sources .16 8.3 Application and Location .20 9 Assembly .20 9.1 General 20 9.2 Pressurized beverage product system .20 9.3 Mechanical protection 21 9.4 Electrical protection 22 10 Barriers27 11 Accessories 27 12 Enclosures .28 12.1 Ge

18、neral .28 12.2 Doors and covers 31 12.3 Enclosures exposed to weather 32 13 Field Supply Connections for Permanently Connected Water Coolers .34 13.1 General .34 13.2 Terminals .35 13.3 Leads .36 13.4 Grounding .37 14 Supply Connections Cord Connected Equipment .38 15 Internal Wiring And Wiring Meth

19、ods .40 16 Separation of Circuits .45 17 Bonding for Grounding 46 18 Button or Coin Cell Batteries .48 ELECTRICAL COMPONENTS 19 Current-Carrying Parts 49 20 Insulating Material 49 21 Switches And Controllers 49 22 Remotely Operated Water Coolers55 23 Motors.56 24 Motor Overload Protection .59 24.1 G

20、eneral .59 24.2 Protection of single-phase nonhermetic motors 59 24.3 Protection of single-phase hermetic refrigerant motor-compressors .60 24.4 Protection of three-phase motors .61 MARCH 30, 2017 DRINKING WATER COOLERS - UL 399 3UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DIS

21、TRIBUTION WITHOUT PERMISSION FROM UL 24.5 Protective electronic circuits .61 25 Electric Water Heaters 63 25.1 Heater elements .63 25.2 Water heater thermal cutoffs.64 26 Valves and Solenoids .64 27 Capacitors .64 28 Transformers .65 29 Batteries and Battery Chargers .65 30 Circuit Breakers, Fusing

22、Resistors and Supplementary Protectors 66 31 Connectors 66 32 Electrical Cable, Conduit and Tubing 66 33 Electrical Insulation Systems .67 34 Electromagnetic Interference Filters .67 35 Fuses and Fuseholders67 36 Lighting Systems .68 37 Optical Isolators and Semiconductor Devices 69 38 Outlet Boxes

23、.69 39 Power Supplies.69 40 Receptacles70 41 Terminal Blocks 70 42 Wireways, Auxiliary Gutters and Associated Fittings 70 43 Ultraviolet (UV) Radiation Systems71 44 Across-The-Line Capacitors, Antenna-Coupling Components, Line-Bypass Components and Fixed Capacitors for Use in Electronic Equipment 71

24、 45 Information Technology Equipment .72 SPACINGS 46 High-Voltage Circuits 72 47 Extra Low-Voltage Circuits .74 48 Alternate Spacings Clearances and Creepage Distances 74 REFRIGERATION SYSTEM 49 Refrigerant .75 50 Pump-Down Capacity .76 51 Refrigerant Tubing and Fittings .76 52 Refrigerant-Containin

25、g Parts .77 53 Pressure-Limiting Device 78 54 Pressure Relief .78 54.1 General .78 54.2 Required discharge capacity .79 54.3 Relief valves .79 THERMOELECTRIC SYSTEM 55 General80 WATER SYSTEM 56 Pressure Relief .80 PERFORMANCE MARCH 30, 2017 DRINKING WATER COOLERS - UL 399 4UL COPYRIGHTED MATERIAL NO

26、T AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 57 General81 57.1 Instrumentation 81 57.2 Ambient temperature .82 58 Tests on Nonmetallic Materials .82 58.1 General .82 58.2 Burnout test Impedance protected motors .83 58.3 Fastener strength test 84 59 Test Voltage .8

27、5 60 Leakage Current Test Cord Connected Water Coolers 85 61 Input Test88 62 Temperature and Pressure Test 89 63 Dielectric Voltage-Withstand Test .93 64 Condenser Fan Motor Failure Test94 65 Condenser Water Failure Test95 66 Overow Test 95 67 Spill Test 96 68 Rain Test 96 69 Stability Test .99 70 S

28、tatic Loading Test .99 71 Ozone Test .100 72 Strain Relief Test 101 73 Water Heating Protective Controls Tests .101 73.1 Endurance test .101 73.2 Calibration test102 74 Overload and Endurance Test for Operating Controls 103 75 Burnout Test 104 75.1 Water heater .104 75.2 Thermoelectric water coolers

29、 .105 75.3 Other components 106 76 Overvoltage and Undervoltage Tests.107 77 Current Overload Test Bonding Conductors and Connections .108 78 Insulation Resistance Test 108 78.1 Water heaters 108 78.2 Thermal and/or acoustical insulating material .109 79 Limited Short-Circuit Test .109 79.1 General

30、109 79.2 Motor overload protective devices .111 79.3 Bonding conductors and connections 111 79.4 Motor circuit conductors and connections 111 80 Protective Devices Maximum Continuous Current Test .111 81 Strength Tests Pressure Containing Components 113 81.1 General 113 81.2 High-side parts114 81.3

31、Low-side parts 114 81.4 Leakage at gaskets or seals 115 81.5 Water-heating tanks .115 81.6 Pressurized beverage product system .115 82 Start-To-Discharge Test 116 83 Protective Electronic Circuit Tests .116 83.1 General 116 83.2 Fault conditions abnormal test 116 83.3 Electromagnetic compatibility (

32、EMC) tests 118 83.4 Programmable component reduced supply voltage test 119 MARCH 30, 2017 DRINKING WATER COOLERS - UL 399 5UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 83.5 Fuse-link test .120 84 Accelerated Aging Test Electric Heaters 12

33、1 85 Reliability Test Heater Terminations 122 86 Accelerated Aging Tests on Gaskets, Sealing Compounds, and Adhesives .122 87 Ultraviolet Irradiance Test.124 88 Metallic Coating Thickness Test .124 89 Marking Label Adhesion Tests 126 89.1 General 126 89.2 Oven-aging test .126 89.3 Immersion test 127

34、 89.4 Standard-atmosphere test 127 89.5 Unusual-condition exposure test 127 90 Refrigerant Identication Tests 127 90.1 General 127 90.2 Infrared analysis 127 90.3 Gas chromatography analysis 128 MANUFACTURING AND PRODUCTION TESTS 91 Pressure Tests 128 92 Production Fatigue Test 129 93 Production Lin

35、e Dielectric Voltage-Withstand Tests 129 94 Production Line Grounding Continuity Tests 132 95 Annual Refrigerant Identication .132 96 Protective Electronic Circuit Test 132 MARKING 97 General 132 98 Accessories .135 99 Permanently Connected Water Coolers 136 100 Cord Connected Water Coolers 140 SUPP

36、LEMENT SA - SANITATION REQUIREMENTS FOR SELF CONTAINED DRINKING-WATER COOLERS INTRODUCTION SA1 Scope SA1 CONSTRUCTION SA2 Bubbler Nozzle and GuardSA1 SA3AirGap.SA2 SA4 Top or Bowl.SA2 PERFORMANCE SA5 Nozzle Flow Control Test .SA3 MARCH 30, 2017 DRINKING WATER COOLERS - UL 399 6UL COPYRIGHTED MATERIA

37、L NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL SUPPLEMENT SB - REQUIREMENTS FOR DRINKING WATER COOLERS EMPLOYING A FLAMMABLE REFRIGERANT IN THE REFRIGERATING SYSTEM SB1 Scope SB1 SB2 Denitions SB1 SB3 General SB2 SB4 Construction SB2 SB4.1 General SB2 SB4.2 Tubi

38、ngs and ttings .SB3 SB5 Performance SB4 SB5.1 Leakage test .SB4 SB5.2 Ignition protection test .SB7 SB5.3 Temperature test SB8 SB5.4 Scratch test SB8 SB6 Marking, Installation and Operating Instructions SB10 SB6.1 Marking .SB10 SB6.2 Installation and operating instructions.SB11 APPENDIX A Claricatio

39、ns APPENDIX B Operating and Protective (“Safety Critical”) Control Functions(Normative) MARCH 30, 2017 DRINKING WATER COOLERS - UL 399 7UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL INTRODUCTION 1 Scope 1.1 These requirements cover self-co

40、ntained 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 Electrical Code, NFPA 70. The following types of water

41、 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) radiation lamp systems in which the UV wavelengths are

42、 200 nm or greater; however, the effectiveness of the water treatment by the UV radiation is not covered by these requirements. 1.2 These requirements do not include additional requirements applicable to equipment designed for use in hazardous locations as dened in the National Electrical Code, NFPA

43、 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, or injury to persons shall be evaluated using the appropriate additional component a

44、nd 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, materials, or systems conict with specic requirements or provisions of this standard cannot

45、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 this standard. 2 Units of measurement 2.1 If a value for measurement is followed by v

46、alue in other units in parentheses, the second value may be only approximate. The rst stated value is the requirement. MARCH 30, 2017 DRINKING WATER COOLERS - UL 399 8UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 3 Undated references 3.1 A

47、ny 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. 4 Reserved for future use 5 Glossary 5.1 For the purpose of this standard, the following denitions apply. 5.2 ACCESSORY An optio

48、nal electrical device or other component, such as a superstructure, intended for installation in or connection to a water cooler for the purpose of modifying or supplementing the functions of the water cooler. It may be factory installed or intended for installation by the user. 5.3 *ADJUSTABLE SPEE

49、D DRIVE A combination of power converter, inverter, motor, and motor-mounted auxiliary devices such as encoders, tachometers, thermal switches and detectors, air blowers, heaters, and vibration sensors. *Reprinted with permission from NFPA 70-2011 , National Electrical Code , Copyright 2010, National Fire Protection Association, Quincy, MA. This reprinted material is not the complete and official position of the NFPA on the referenced subject, which is represented only by the stan