1、 2014 Standard for Performance Rating of Liquid Line Filters AHRI Standard 715 (I-P) Price $15.00 (M) $30.00 (NM) Copyright 2014, by Air-Conditioning, Heating, and Refrigeration Institute Printed in U.S.A. Registered United States Patent and Trademark Office IMPORTANT SAFETY DISCLAIMER AHRI does not
2、 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 strongly recommended that products be designed, constructed, assembled, installed and operated in
3、 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 employing state-of-the-art and accepted industry practices. AHRI does not certify or guarantee that an
4、y tests conducted under the standards/guidelines will not be non-hazardous or free from risk. Note: This standard supersedes AHRI Standard 715-2007. For SI ratings, see AHRI Standard 716 (SI)-2014. TABLE OF CONTENTS SECTION PAGE Section 1. Purpose 1 Section 2. Scope .1 Section 3. Definitions.1 Secti
5、on 4. Tubing Connections 2 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. Pressu
6、re Drop vs. Contaminant Added .3 APPENDICES Appendix A. References - Normative .5 Appendix B. References - Informative5 _AHRI STANDARD 715 (I-P)-2014 1 PERFORMANCE RATING OF LIQUID LINE FILTERS Section 1. Purpose 1.1 Purpose. The purpose of this standard is to establish for Liquid Line Filters: defi
7、nitions; 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 the guidance of the industry, including manufacturers, engineers, installers, cont
8、ractors 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 in the liquid line of all types of refrigeration and air-conditioning systems emp
9、loying the following refrigerants: R-22, R-134a, R-290, R-404A, R-407A, R-407C, R-410A, R-507A, R-600a, and R-744 as defined in ANSI/ASHRAE 34 with Addenda. This standard provides a means of determining the Overall Filter Efficiency and Contaminant Capacity of a Liquid Line Filter at specified condi
10、tions. 2.2 Exclusions. This standard does not apply to 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
11、 removal are not considered here. Although many commercial Liquid Line Filter 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 drier
12、s is ANSI/AHRI Standard 710 (I-P). Section 3. Definitions All terms in this document will follow the standard industry definitions in the ASHRAE Wikipedia website (http:/wiki.ashrae.org/index.php/ASHRAEwiki) unless otherwise defined in this section. 3.1 Contaminant Capacity (Mc). The mass of test co
13、ntaminant that is retained by the Filter Under 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
14、 removing and retaining solid contaminants from a refrigeration system. For the purpose of this standard, the term “Liquid Line 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 i
15、n the refrigeration system. 3.5 Overall Filter Efficiency (Ef). The ratio of Contaminant Capacity to 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 Pressu
16、re Drop. The specified Pressure Drop for the rated filter at which the Contaminant Loading is determined. AHRI STANDARD 715 (I-P)-2014 2 3.7 Published Rating. A statement of the assigned values of those performance characteristics, under stated Rating Conditions, by which a Liquid Line Filter may be
17、 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 the rating of all performance characteristics shown on the component or published in specifications, advertising or other
18、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 Standard Rating Conditions). 3.7.2 Standard Rating. A rating based on tests performed at Standard Rating Conditions. 3.8 Ra
19、ting 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 Conditions. Rating Conditions used as the basis of comparison for performance characteristics. 3.9 “Shall“ or “Should“. “
20、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 the standard is claimed. 3.9.2 Should. “Should“ is used to indicate provisions which are not mandatory but which are desirab
21、le 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 fluid that is specified for the Filter Under Test. Section 4. Tubing Connections 4.1 Tubing Connections. Dimensional specific
22、ations 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 ratings shall be based on tests conducted in accordance with the procedure outlined in ANSI/ASHRAE Standard 63.2. Table 1.
23、 Standard Rating Conditions Nominal Hermetic Filter Size Nominal Connection Size Flow Rate End-point Pressure Drop in3in lb/min psi 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., “The Use of Range in Place of Standard Deviation in the t-Test“ Biometrika, p. 41, 1947. B1.3 Proschan and Babcock, “How to Use Short-Cut Statistics“ Chemical Engineering, September 1954.
