ANSI UL 484-2014 UL Standard for Safety Room Air Conditioners (Ninth Edition Reprint with Revisions Through and Including October 25 2016).pdf

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1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL 484 Room Air Conditioners 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 Room Air Conditioners, UL 484 Ninth Edition, Dated February 7, 2014 Summary of Topics These revisions to ANSI/UL 484 include the Addition of Requirements Covering Button or Coin Cell Batteries of Lithium T

3、echnologies and other miscellaneous editorial revisions. Text that has been changed in any manner or impacted by ULs electronic publishing system is marked with a vertical line in the margin. The new requirements are substantially in accordance with Proposal(s) on this subject dated September 2, 201

4、6. 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 of any kind, eit

5、her 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 any other damages

6、 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 the claim. Users

7、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 storing an elect

8、ronic Standard on the purchasers computer system. OCTOBER 25, 2016 UL 484 tr1UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL OCTOBER 25, 2016 UL 484 tr2 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR D

9、ISTRIBUTION WITHOUT PERMISSION FROM UL FEBRUARY 7, 2014 (Title Page Reprinted: October 25, 2016) 1 UL 484 Standard for Room Air Conditioners First Edition August, 1954 Second Edition September, 1957 Third Edition December, 1961 Fourth Edition January, 1972 Fifth Edition March, 1973 Sixth Edition Mar

10、ch, 1982 Seventh Edition April, 1993 Eighth Edition December, 2007 Ninth Edition February 7, 2014 This ANSI/UL Standard for Safety consists of the Ninth Edition including revisions through October 25, 2016. The most recent designation of ANSI/UL 484 as an American National Standard (ANSI) occurred o

11、n October 25, 2016. ANSI approval for a standard does not include the Cover Page, Transmittal Pages, and Title Page. The Department of Defense (DoD) has adopted UL 484 on February 5, 1993. The publication of revised pages or a new edition of this Standard will not invalidate the DoD adoption. Commen

12、ts or proposals for revisions 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 https:/. ULs Standards for Safety are copyrighted by UL. Neither a printed nor electr

13、onic copy of a Standard 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 2016 UNDERWRITERS LABORATORIES INC. ANSI/UL 484-2016UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR

14、 FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL OCTOBER 25, 2016 ROOM AIR CONDITIONERS - UL 484 2 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL CONTENTS INTRODUCTION 1 Scope .7 2 General 7 2.1 Units of

15、measurement .7 2.2 Terminology .7 2.3 Undated references .9 3 Glossary .9 CONSTRUCTION 4 General .12 5 Assembly .13 6 Accessories .18 7 Enclosures 19 7.1 General 19 7.2 Enclosures exposed to weather .22 8 Polymeric Materials 24 8.1 General 24 8.2 Material classication 25 8.3 Ignition sources .25 8.4

16、 Material application 26 9 Mounting Hardware 30 10 Field Supply Connections 30 10.1 Permanently-connected units 30 10.2 Cord-connected units .34 10.3 Grounding .35 11 Internal Wiring 36 11.1 General .36 11.2 High-voltage circuits 37 11.3 Low-voltage circuits .39 11.4 Wiring method .39 11.5 Short cir

17、cuit protection 40 12 Secondary Circuits 41 12.1 General .41 12.2 Class 2 circuits .42 12.3 Limited voltage/current circuits .42 13 Separation of Circuits .43 14 Bonding for Grounding 44 15 Thermal Aisle Containment Systems 47 15.1 General .47 15.2 Equipment employing drop-out ceilings used beneath

18、automatic sprinklers 47 ELECTRICAL COMPONENTS 16 Capacitors .49 17 Current-Carrying Parts 50 18 Electric Air Heaters .50 18.1 Heater elements .50 18.2 Heater overtemperature control 51 OCTOBER 25, 2016 ROOM AIR CONDITIONERS - UL 484 3UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR

19、 DISTRIBUTION WITHOUT PERMISSION FROM UL 18.3 Heater overcurrent protection 51 19 Fuseholders and Circuit Breakers .52 19.1 Fuseholders .52 19.2 Circuit breakers 53 20 Fuses and Supplementary Protectors .53 21 Insulating Material 54 22 Motors .54 23 Motor Protection 57 23.1 General .57 23.2 Protecti

20、on of single-phase nonhermetic motors 57 23.3 Protection of three-phase motors .59 23.4 Protection of hermetic refrigerant motor-compressors .60 24 Switches and Controllers 60 25 Valves and Solenoids .65 26 Outlet Boxes, Electrical Cable, Conduit and Tubing .65 27 Electromagnetic Interference Filter

21、s .66 28 Relays and Contactors 66 29 Optical Isolators and Semiconductor Devices 66 30 Terminal Blocks 66 31 Transformer Protection 67 31.1 High-voltage transformer .67 31.2 Overcurrent protective device 69 32 High-Voltage Control Circuit Conductor Overcurrent Protection .69 32.1 General .69 32.2 Di

22、rect-connected high-voltage control circuit .70 32.3 Tapped high-voltage control circuit .70 32.4 Overcurrent protective device .70A 32A Button or Coin Cell Batteries of Lithium Technologies 70B ELECTRICAL SPACINGS 33 High-Voltage Circuits 70B 34 Low-Voltage Circuits 74 35 Alternate Spacings Clearan

23、ces and Creepage Distances 74 REFRIGERATION SYSTEM 36 Refrigerant .75 37 Pump-Down Capacity .76 38 Refrigerant Tubing and Fittings .76 39 Refrigerant-Containing Parts .77 40 Pressure-Limiting Device 78 41 Pressure Relief .78 41.1 General .78 41.2 Relief valves .79 41.3 Fusible plugs or rupture membe

24、rs 79 PERFORMANCE 42 Instrumentation .79 42.1 Temperature measurements .79 42.2 Pressure measurements 80 43 Test Voltage .81 OCTOBER 25, 2016 ROOM AIR CONDITIONERS - UL 484 4UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 44 Leakage Current

25、Test Cord-Connected Room Air Conditioners .81 45 Rain Test 85 46 Test Conditions for Input Test and Temperature-Pressure Test .88 47 Input Test 89 47.1 General .89 47.2 Cooling load .89 47.3 Heating load (reverse cycle heat only) 90 47.4 Heating load (resistance heat only) .90 47.5 Heating load (com

26、bination reverse cycle and resistance heat) .90 48 Temperature and Pressure Test 91 49 Starting Test .94 50 Dielectric Voltage-Withstand Test .94 51 Condenser Fan Motor Failure Test .95 52 Condenser Water Failure Test 96 53 Temperature Test Steam Or Hot Water Heat .97 54 Temperature Test Resistance

27、Heat .98 55 Abnormal Tests Resistance Heat .98 55.1 General .98 55.2 Blocked outlet .98 55.3 Restricted inlet .99 55.4 Fan Failure 99 56 Static Loading Test .99 57 Stability Test 100 58 Overow Test .100 59 Spillage Test 100 60 Heater Temperature-Limiting Control Tests .101 60.1 Endurance test .101 6

28、0.2 Calibration test 101 61 Maximum Continuous Current Test Motor-Compressor Protection Devices 101 62 Limited Short-Circuit Test .103 62.1 General 103 62.2 Motor overload protective devices .104 62.3 Bonding conductors and connections 105 62.4 Motor circuit conductors and connections 105 63 Current

29、 Overload Test Bonding Conductors and Connections .105 64 Overvoltage and Undervoltage Tests .106 65 Insulation Resistance Test 106 65.1 Sheath-type heaters .106 65.2 Thermal and acoustical insulation material .106 66 Accelerated Aging Test Electric Heaters 107 67 Reliability Test Heater Termination

30、s 108 68 Accelerated Aging Tests On Gaskets Sealing Compounds, And Adhesives .108 69 Metallic Coating Thickness Test .110 70 Strength Tests Pressure Containing Components 111 71 Fatigue Test Analysis 113 71.1 General 113 71.2 Test specications 113 71.3 Material specications .114 71.4 General test sp

31、ecications .114 71.5 Test method 114 71.6 Test parameters 115 71.7 Cycle test pressure specication 115 72 Strain Relief Test 115 OCTOBER 25, 2016 ROOM AIR CONDITIONERS - UL 484 5UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 73 Burnout Test

32、s Electromagnetic Components 116 POLYMERIC MATERIALS PERFORMANCE 74 Heat Deection or Mold Stress-Relief Test 116 75 Water Absorption Test .117 76 Environmental Exposure 118 76.1 Air oven aging 118 76.2 Ultraviolet light and water exposure .118 76.3 Water immersion 118 77 Tensile Strength Test 120 78

33、 Flexural Strength Test 120 79 Izod Impact Test .120 80 Burnout Test High-Voltage Transformers .121 81 Overload Test High-Voltage Transformers 121 82 Tensile Impact Test 122 83 Impact Test .122 84 Volume Resistivity Test .123 MANUFACTURING AND PRODUCTION TESTS 85 Pressure Tests 123 86 Production Lin

34、e Dielectric Voltage-Withstand Test .124 87 Production Line Grounding Continuity Test .126 MARKING 88 General 126 89 Permanently-Connected Units .131 90 Cord-Connected Units 137 INSTRUCTIONS 91 Installation and Operating Instructions 138 SUPPLEMENT SA - REQUIREMENTS FOR ROOM AIR CONDITIONERS EMPLOYI

35、NG A FLAMMABLE REFRIGERANT IN THE REFRIGERATING SYSTEM SA1 Scope SA1 SA2 Denitions SA1 SA3 General SA2 SA4 Construction SA2 SA4.1 Refrigeration system .SA2 SA4.2 Resistance to corrosion SA3 SA5 Performance SA3 SA5.1 Leakage test .SA3 SA5.2 Ignition protection test .SA3 SA5.3 Temperature test SA5 SA6

36、 Marking, Installation and Operating Instructions .SA5 SA6.1 Marking SA5 SA6.2 Installation and operating instructions SA6 OCTOBER 25, 2016 ROOM AIR CONDITIONERS - UL 484 6UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL SUPPLEMENT SB - REQUI

37、REMENTS FOR SMART ENABLED ROOM AIR CONDITIONERS SB1 Scope SB1 SB2 General SB1 SB3 Functional Safety SB3 SB4 Resistance to Electro Magnetic Phenomena (Immunity) SB4 SB5 Marking and Instructions SB5 SUPPLEMENT SC - ALTERNATIVE PATH FOR ELECTRONIC CONTROLS REQUIREMENTS INTRODUCTION SC1 Scope SC1 SC2 Ge

38、neral SC2 SC3 Denitions SC2 CONSTRUCTION SC4 Components SC3 SC4.1 Temperature sensing, thermistor devices SC3 SC4.2 Printed wiring boards SC4 SC5 Enclosures .SC4 SC6 Field Connections .SC4 SC7 Electrical Spacing .SC5 SC8 Electrical Insulation SC5 SC9 Control Functions SC5 SC9.1 General SC5 SC9.2 Pro

39、tective electronic circuits/control .SC6 SC9.3 Operating controls or circuits that perform safety critical functions .SC6 SC10 Evaluation of the Different Types of Control Circuits SC6 SC11 Protective Electronic Circuits .SC7 SC12 Operating Controls or Circuits that Perform Safety Critical Functions

40、 .SC8 PERFORMANCE SC13 General Conditions for the Tests .SC8 SC13.1 Details SC8 SC13.2 Intentionally weak parts .SC9 SC13.3 Test results determined by overcurrent protection operation .SC9 SC14 Low-Power Circuits SC10 SC14.1 Low-power circuit determination SC10 SC14.2 Low-power circuit re tests .SC1

41、1 SC15 Abnormal Operation and Fault Tests SC11 SC16 Programmable Component Reduced Supply Voltage Test SC13 SC17 Electromagnetic Compatibility (EMC) Requirements - Immunity .SC13 MANUFACTURING AND PRODUCTION LINE TESTING SC18 General SC14 OCTOBER 25, 2016 ROOM AIR CONDITIONERS - UL 484 6AUL COPYRIGH

42、TED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL MARKINGS SC19 General SC15 Appendix A(normative)Selected information about refrigerants Appendix B(informative)Transportation, marking and storage for units that employ ammable refrigerants B.1 Transport

43、of Equipment Containing Flammable Refrigerants B1 B.2 Marking of Equipment Using Signs .B1 B.3 Disposal of Equipment Using Flammable Refrigerants B1 B.4 Storage of Equipment/Appliances B1 B.5 Storage of Packed (Unsold) Equipment .B1 Appendix C(normative)Manuals C.1 General C1 C.2 Symbols C1 C.3 Info

44、rmation in Installation and Operating Manuals .C1 Appendix D(normative)Leak simulation tests D.1 General D1 D.2 Test Methods .D1 Appendix E(normative)Charge limits and additional test requirements for appliances using ammable refrigerants E.1 Requirements for Charge Limits .E1 OCTOBER 25, 2016 ROOM

45、AIR CONDITIONERS - UL 484 6BUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL INTRODUCTION 1 Scope 1.1 These requirements cover room air conditioners rated not more than 600 volts alternating current (ac) and intended for installation in accor

46、dance with the National Electrical Code, ANSI/NFPA 70. 1.2 For the purposes of this standard, room air conditioners include packaged terminal air conditioners, special purpose air conditioners, and recreational vehicle air conditioners. They are factory-made encased assemblies designed as a unit pri

47、marily to provide free delivery of conditioned air to an enclosed space, room, or zone. This equipment is intended for installation in a window, through a wall, or as a console located in or adjacent to the room, zone, or space to be conditioned. These units employ hermetic refrigerant motor-compres

48、sors with factory-charged refrigeration systems and include means for circulating air. They may also have provision for heating and ventilation. 1.3 With regard to 1.2, a console or in-wall type air conditioner may additionally serve a single adjacent room. Such units employ cabinet or enclosure con

49、structions permitting attachment of an air discharge adapter or duct which extends into the adjacent room. Recreational vehicle air conditioners may also employ a limited amount of ductwork. 1.4 These requirements do not cover equipment intended for connection to duct systems for the purpose of providing central cooling, heating, or both. 2 General 2.1 Units of measurement 2.1.1 Values stated without parentheses are the requirement. Values in parentheses are explanatory or approximat