AHRI 495-2005 Performance Rating Of Refrigerant Liquid Receivers.pdf

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1、 2005 Standard for Performance Rating Of Refrigerant Liquid Receivers ANSI/AHRI Standard 495-2005 (Formerly ARI Standard 495-2005) Price $5.00 (M) $10.00 (NM) Copyright 2005, by Air-Conditioning, Heating and Refrigeration Institute Printed in U.S.A. Registered United States Patent and Trademark Offi

2、ce Note: This standard supersedes ARI Standard 495-99. IMPORTANT SAFETY DISCLAIMER AHRI does not set safety standards and does not certify or guarantee the safety of any products, components or systems designed, tested, rated, installed or operated in accordance with this standard/guideline. It is s

3、trongly recommended that products be designed, constructed, assembled, installed and operated in accordance with nationally recognized safety standards and code requirements appropriate for products covered by this standard/guideline. AHRI uses its best efforts to develop standards/guidelines employ

4、ing state-of-the-art and accepted industry practices. AHRI does not certify or guarantee that any tests conducted under its standards/guidelines will be non-hazardous or free from risk. TABLE OF CONTENTS SECTION PAGE Section 1. Purpose . 1 Section 2. Scope .1 Section 3. Definitions .1 Section 4. Rat

5、ing Requirements .1 Section 5. Minimum Data Requirements for Published Ratings 2 Section 6. Marking and Nameplate Data 2 Section 7. Conformance Conditions .2 APPENDICES Appendix A. References - Normative .3 Appendix B. References - Informative .3 AHRI STANDARD 495-2005 1 PERFORMANCE RATING OF REFRIG

6、ERANT LIQUID RECEIVERS Section 1. Purpose 1.1 Purpose. The purpose of this standard is to establish for Refrigerant Liquid Receivers: definitions; rating requirements; minimum data requirements for Published Ratings; marking and nameplate data; and conformance conditions. 1.1.1 Intent. This standard

7、 is intended for the guidance of the industry, including manufacturers, engineers, installers, contractors and users. 1.1.2 Review and Amendment. This standard is subject to review and amendment as technology advances. Section 2. Scope 2.1 Scope. This standard applies to separately installed Refrige

8、rant Liquid Receivers for field-erected systems only. Section 3. Definitions All terms in this document shall follow the standard industry definitions in the current edition of ASHRAE Terminology of Heating, Ventilation, Air Conditioning and Refrigeration, unless otherwise defined in this section. 3

9、.1 Published Rating. A statement of the assigned values of those performance characteristics, under stated Rating Conditions, by which a unit may be chosen to fit its application. These values apply to all units of like nominal size and type (identification) produced by the same manufacturer. The te

10、rm Published Rating includes the rating of all performance characteristics shown on the unit or published in specifications, advertising or other literature controlled by the manufacturer, at stated Rating Conditions. 3.1.1 Application Rating. A rating based on tests performed at application Rating

11、Conditions (other than Standard Rating Conditions). 3.1.2 Standard Rating. A rating based on tests performed at Standard Rating Conditions. 3.2 Rating Conditions. Any set of operating conditions under which a single level of performance results and which causes only that level of performance to occu

12、r. 3.2.1 Standard Rating Conditions. Rating Conditions used as the basis of comparison for performance characteristics. 3.3 Refrigerant Liquid Receiver. A vessel in a refrigerating system designed to ensure the availability of adequate liquid refrigerant for proper functioning of the system, and to

13、store the liquid refrigerant when the system is pumped down. 3.4 “Shall“ or “Should“.“ “Shall“ or “Should“ shall be interpreted as follows: 3.4.1 Shall. Where “shall“ or “shall not“ is used for a provision specified, that provision is mandatory if compliance with the standard is claimed. 3.4.2 Shoul

14、d. “Should“ is used to indicate provisions which are not mandatory but which are desirable as good practice. Section 4. Rating Requirements 4.1 Rating Requirements. Capacity ratings for Refrigerant Liquid Receivers shall be determined with the maximum being 80% of the gross internal volume of the re

15、ceiver, expressed in ft3m3 or expressed in lb kg, of any specified refrigerant, assuming saturated liquid refrigerant density (ASHRAE Handbook Fundamentals) at 90F 32 C. AHRI STANDARD 495-2005 2 4.2 Tolerance. To comply with this standard, storage capacity shall be based on data obtained in accordan

16、ce with the provisions of this standard and shall be such that any production unit, when tested, shall show a capacity not less than the rated capacity. Section 5. Minimum Data Requirements for Published Ratings 5.1 Minimum Data Requirements for Published Ratings. As a minimum, Published Ratings sha

17、ll include all Standard Ratings. All claims to ratings within the scope of this standard shall include the statement “Rated in accordance with AHRI Standard 495.” All claims to ratings outside the scope of this standard shall include the statement “Outside the scope of AHRI Standard 495.” Wherever A

18、pplication Ratings are published or printed, they shall include a statement of the conditions at which the ratings apply. 5.2 Information to be published. Manufacturers literature for each model shall include: a. Liquid refrigerant storage capacity, ft3m3, or lb kg for a specified refrigerant b Size

19、 of refrigerant connections, in mm c. Type of refrigerant connections d. Maximum design pressure, psig kPagauge e. Refrigerants for which the vessel is suitable per ANSI/ASHRAE 34 with Addenda Section 6. Marking and Nameplate Data 6.1 Marking and Nameplate Data. As a minimum, each Refrigerant Liquid

20、 Receiver shall have the following information shown on its nameplate(s): a. Manufacturers name b. Manufacturers model or serial number c. Maximum design pressure, psig kPagauge d. Liquid refrigerant storage capacity, ft3m3, or lb kg for a specified refrigerant Section 7. Conformance Conditions 7.1

21、Conformance. While conformance with this standard is voluntary, conformance shall not be claimed or implied for products or equipment within the standards Purpose (Section 1) and Scope (Section 2) unless such product claims meet all of the requirements of the standard and all of the rating requireme

22、nts are reported in complete compliance with the standard. Any product that has not met all the requirements of the standard shall not reference, state, or acknowledge the standard in any written, oral, or electronic communication. AHRI STANDARD 495-2005 3 APPENDIX A. REFERENCES - NORMATIVE A1 Liste

23、d here are all standards, handbooks and other publications essential to the formation and implementation of the standard. All references in this appendix are considered as part of the standard. A1.1 ANSI/ASHRAE Standard 34-2001 with Addenda, Number Designation and Safety Classification of Refrigeran

24、ts, 2001, American National Standards Institute/American Society of Heating, Refrigerating, and Air-Conditioning Engineers, Inc., 11 West 42nd Street, New York, NY 10036, U.S.A./1791 Tullie Circle, N.E., Atlanta, Georgia, 30329, U.S.A. A1.2 ASHRAE Handbook Fundamentals, 2001, American Society of Hea

25、ting, Refrigerating, and Air-Conditioning Engineers, Inc., 1791 Tullie Circle N.E., Atlanta, GA 30329, U.S.A. A1.3 ASHRAE Terminology of Heating, Ventilation, Air Conditioning and Refrigeration, Second Edition, 1991, American Society of Heating, Refrigerating, and Air-Conditioning Engineers, Inc., 1791 Tullie Circle N.E., Atlanta, GA 30329, U.S.A. APPENDIX B. REFERENCES - INFORMATIVE None.