1、4100 N. FAIRFAX DR., SUITE 200 ARLINGTON, VIRGINIA 22203 2007 STANDARD for PERFORMANCE RATING OF LIQUID-LINE FILTERS Standard 715 Copyright Air-Conditioning and Refrigeration Institute Provided by IHS under license with ARI Not for ResaleNo reproduction or networking permitted without license from I
2、HS-,-,-Price $12.50 (M) $25.00 (NM) Printed in U.S.A. Copyright 2007, by Air-Conditioning and Refrigeration Institute Registered United States Patent and Trademark Office IMPORTANT SAFETY DISCLAIMER ARI does not set safety standards and does not certify or guarantee the safety of any products, compo
3、nents or systems designed, tested, rated, installed or operated in accordance with this standard/guideline. It is strongly recommended that products be designed, constructed, assembled, installed and operated in accordance with nationally recognized safety standards and code requirements appropriate
4、 for products covered by this standard/guideline. ARI uses its best efforts to develop standards/guidelines employing state-of-the-art and accepted industry practices. ARI does not certify or guarantee that any tests conducted under its standards/guidelines will be non-hazardous or free from risk. N
5、ote: This is a new standard. Copyright Air-Conditioning and Refrigeration Institute Provided by IHS under license with ARI Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-TABLE OF CONTENTS SECTION PAGE Section 1. Purpose1 Section 2. Scope.1 Section 3. Definitions 1
6、 Section 4. Tubing Connections2 Section 5. Test Requirements 2 Section 6. Rating Requirements.3 Section 7. Minimum Data Requirements for Published Ratings .4 Section 8. Marking and Nameplate Data .4 Section 9. Conformance Conditions 4 TABLES Table 1. Standard Rating Conditions 2 FIGURES Figure 1. Pr
7、essure Drop vs. Contaminant Added.3 APPENDICES Appendix A. References - Normative .5 Appendix B. References - Informative5 Copyright Air-Conditioning and Refrigeration Institute Provided by IHS under license with ARI Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-
8、This page is intentionally blank. Copyright Air-Conditioning and Refrigeration Institute Provided by IHS under license with ARI Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-ARI STANDARD 715-2007 1PERFORMANCE RATING OF LIQUID-LINE FILTERS Section 1. Purpose 1.1 P
9、urpose. The purpose of this standard is to establish for Liquid-line Filters: definitions; tubing connections; test requirements; rating requirements; minimum data requirements for Published Ratings; marking and nameplate data; and conformance conditions. 1.1.1 Intent. This standard is intended for
10、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 hermetic Liquid-line Filters designed for use
11、 in the liquid line of all types of refrigeration and air-conditioning systems employing refrigerants. This standard provides a means of determining the Overall Filter Efficiency and Contaminant Capacity of a Liquid-line Filter at specified conditions. 2.2 Exclusions. This standard does not apply to
12、 filters used in the suction line or low pressure side of refrigeration and air-conditioning systems. 2.3 Limitations. This standard only addresses the removal and retention of solid particles. Therefore, acid, dissolved contaminant, and moisture removal are not considered here. Although many commer
13、cial Liquid-line Filters-Driers have moisture removal and retention media, the subject of moisture removal is separate and distinct from the considerations of this standard. The rating standard for moisture removal performance of liquid-line driers is ARI Standard 710. Section 3. Definitions All ter
14、ms in this document 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. 3.1 Contaminant Capacity (Mc). The mass of test contaminant that is retained by the Filter U
15、nder Test, grams. 3.2 Contaminant Loading (Mt). The mass of test contaminant that is added to the test apparatus, grams. 3.3 Filter Under Test: The Liquid-line Filter that is under evaluation. 3.4 Liquid-line Filter. A device installed in the liquid line for removing and retaining solid contaminants
16、 from a refrigeration system. For the purpose of this standard, the term “Liquidline Filters” includes Liquid-line Filter-Driers. 3.4.1 Liquid-line Filter-Drier. A filter containing a desiccant capable of removing moisture and other dissolved contaminants in the refrigeration system. 3.5 Overall Fil
17、ter Efficiency (Ef). Contaminant Capacity divided by the contaminant loading, expressed as a percent. 3.6 Pressure Drop. The pressure difference between the inlet and the outlet of a Liquid-line Filter, including its connections. 3.6.1 End-point Pressure Drop. The specified Pressure Drop for the rat
18、ed filter at which the Contaminant Loading is determined. Copyright Air-Conditioning and Refrigeration Institute Provided by IHS under license with ARI Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-ARI STANDARD 715-2007 2 3.7 Published Rating. A statement of the
19、assigned values of those performance characteristics, under stated Rating Conditions, by which a Liquid-line Filter may be chosen to fit its application. These values apply to all Liquid-line Filters of like nominal size and type produced by the same manufacturer. The term Published Rating includes
20、the rating of all performance characteristics shown on the component or published in specifications, advertising or other literature controlled by the manufacturer, at stated Rating Conditions. 3.7.1 Application Rating. A rating based on tests performed at application Rating Conditions (other than S
21、tandard Rating Conditions). 3.7.2 Standard Rating. A rating based on tests performed at Standard Rating Conditions. 3.8 Rating Conditions. Any set of operating conditions under which a single level of performance results and which causes only that level of performance to occur. 3.8.1 Standard Rating
22、 Conditions. Rating Conditions used as the basis of comparison for performance characteristics. 3.9 “Shall“ or “Should“. “Shall“ or “should“ shall be interpreted as follows: 3.9.1 Shall. Where “shall“ or “shall not“ is used for a provision specified, that provision is mandatory if compliance with th
23、e standard is claimed. 3.9.2 Should. “Should“ is used to indicate provisions which are not mandatory but which are desirable as good practice. 3.10 Temperature. The temperature of the liquid refrigerant passing through the Liquid-line Filter. 3.11 Test Flow Rate. The mass flow rate of clean test flu
24、id that is specified for the Filter Under Test. Section 4. Tubing Connections 4.1 Tubing Connections. Dimensional specifications for sweat connections of Liquid-line Filters shall be in accordance with ANSI/ASME Standard B16.22. Section 5. Test Requirements 5.1 Testing Procedure. Liquid-line filter
25、ratings shall be based on tests conducted in accordance with the procedure outlined in ANSI/ASHRAE Standard 63.2. Table 1. Standard Rating Conditions Nominal Hermetic Filters Size Nominal Connection Size Flow Rate End-point Pressure Drop in3in lb/min kg/s psi kPa 3 1/4 7 0.05 5.0 34 3 15 3/8 14 0.11
26、 5.0 34 16 39 1/2 28 0.21 5.0 34 40 - 75 5/8 42 0.32 5.0 34 Copyright Air-Conditioning and Refrigeration Institute Provided by IHS under license with ARI Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-ARI STANDARD 715-2007 3Section 6. Rating Requirements 6.1 Ratin
27、g Requirements. Liquid-line Filters shall be rated by their Overall Filter Efficiency and Contaminant Capacity, and shall include their ratings at the Standard Rating Conditions in Table 1. All tests shall be conducted with the test fluid at a single temperature within the range of 75F to 80F 24C to
28、 27C. 6.2 Overall Filter Efficiency and Contaminant Capacity shall be determined in accordance with the procedures outlined in ANSI/ASHRAE Standard 63.2 and statistical method outlined in 6.3. 6.3 Statistical Method for Establishing Overall Filter Efficiency and Contaminant Capacity Ratings. ANSI/AS
29、HRAE Standard 63.2 gives a procedure for determining Overall Filter Efficiency and Contaminant Capacity of any refrigerant Liquid-line Filter or Filter-Drier. This subsection presents a statistical procedure applied to the results from testing sets of samples of production Liquid-line Filters to est
30、ablish a rating which will be equaled or exceeded by 90% of those produced. 6.3.1 When several determinations of Overall Filter Efficiency and Contaminant Capacity of a single model Liquid-line Filter are made by the procedure of ANSI/ASHRAE Standard 63.2, a series of values will be obtained because
31、 of manufacturing variations. The average of these results is more reliable than any single result. This average also becomes more reliable as more values are used in calculating the average. 6.3.2 In order to compensate for these testing and manufacturing variations, a statistical procedure is avai
32、lable for arriving at a rating that will guarantee any percent compliance desired. 6.3.3 This rating procedure is a statistical analysis of results obtained from tests on a group of six Liquid-line Filters, and the rating obtained by this procedure will be such that the average Overall Filter Effici
33、ency and Contaminant Capacity of duplicate tests on any set of six Liquid-line Driers will equal or exceed the rating in 90% of all cases. 6.3.3.1 For each of the Liquid-line Filters tested, calculate the average, minimum and maximum Pressure Drop for each addition of contaminant. The results are th
34、en plotted on a linear graph with the contaminant added on the X-axis and the Pressure Drop on the Y-axis. Three curves are constructed, one for the minimum values, the average values and the maximum values. A horizontal line is drawn from the end point pressure through the average curve. A vertical
35、 line is then drawn from the point of intersection to the horizontal axis. (Figure 1) 05101520253035400 2 4 6 8 10 12 14Contaminant Added (Grams)PressureDrop(kPA)MinAveMaxRange of ContaminantAdded (r)Average MtFigure 1. Pressure Drop vs. Contaminant Added Copyright Air-Conditioning and Refrigeration
36、 Institute Provided by IHS under license with ARI Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-ARI STANDARD 715-2007 4 6.3.3.2 Determine the average Overall Filter Efficiency (Ef) as described in ANSI/ASHRAE Standard 63.2, Section 7.1. The rated Overall Filter E
37、fficiency = Ef - 0.36r 1 Where r = range as determined from the graph in 6.3.4.1 6.3.3.3 Compute the Contaminant Capacity (Mc) by applying the Overall Filter Efficiency (Ef) to the Contaminant Loading (Mt) determined by the graph: Mc= (Mt Ef)/100 grams 2 6.3.3.4 When Liquid-line Filters are preloade
38、d at the rated Overall Filter Efficiency and Contaminant Capacity, statistically at least 90% of averages of sets of six Liquid-line Filters, with duplicate tests for each Liquid-line Filter, will equal or exceed the rating. 6.4 Tolerances. To comply with this standard, measured test results shall n
39、ot be less than 90% of Published Ratings for Overall Filter Efficiency and Contaminant Capacity. Section 7. Minimum Data Requirements for Published Ratings 7.1 Minimum Data Requirements for Published Ratings. As a minimum, Published Ratings shall include all Standard Ratings. All claims to ratings w
40、ithin the scope of this standard shall include the statement “Rated in accordance with ARI Standard 715.” All claims to ratings outside the scope of this standard shall include the statement “Outside the scope of ARI Standard 715.” Wherever Application Ratings are published or printed, they shall in
41、clude a statement of the conditions at which the ratings apply. 7.2 Published Ratings. 7.2.1 Published Ratings shall include the following: a. Overall Filter Efficiency, %. b. Contaminant Capacity, g Section 8. Marking and Nameplate Data 8.1 Marking and Nameplate Data. As a minimum, each Liquid-line
42、 Filter shall be marked with the following information: a. The manufacturers name or trade name b. Model designation Section 9. Conformance Conditions 9.1 Conformance. While conformance with this standard is voluntary, conformance shall not be claimed or implied for products or equipment within the
43、standards Purpose (Section 1) and Scope (Section 2) unless such product claims meet all of the requirements of the standard and all of the testing and rating requirements are measured and reported in complete compliance with the standard. Any product that has not met all the requirements of the stan
44、dard shall not reference, state, or acknowledge the standard in any written, oral, or electronic communication. Copyright Air-Conditioning and Refrigeration Institute Provided by IHS under license with ARI Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-ARI STANDAR
45、D 715-2007 5APPENDIX A. REFERENCES NORMATIVE A1 Listed 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 63.2-1996 (RA 2006), Method
46、 of Testing Liquid-Line Filter-Drier Filtration Capability, 2006, American National Standards Institute /American Society of Heating, Refrigerating and Air-Conditioning Engineers, Inc., 1791 Tullie Circle N.E., Atlanta, GA 30329, U.S.A. A1.2 ANSI/ASME Standard B16.22-2006, Wrought Copper and Copper
47、Alloy Solder Joint Pressure Fittings, 2006, American Society of Mechanical Engineers, Three Park Avenue, New York, NY 10016-5990, U.S.A. A1.3 ARI Standard 710-2001, Performance Rating of Liquid-Line Driers, 2001, Air-Conditioning and Refrigeration Institute, 4100 North Fairfax Drive, Suite 200, Arli
48、ngton, VA 22203, U.S.A. A1.4 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 B1 Listed here are standards, handbooks and other publications which may provide useful information and background but are not considered essential. References in this appendix are not considered part of the standard. B1.2 Lord, E., “Th
