1、 2013 Standard for Performance Rating of Commercial and Industrial Air Filter Equipment AHRI Standard 851 (SI)-2013 Price $10.00 (M) $20.00 (NM) Copyright 2013, by Air-Conditioning, Heating, and Refrigeration Institute Printed in U.S.A. Registered United States Patent and Trademark Office Note: This
2、 standard supersedes ARI Standard 850-2004. For I-P ratings, see AHRI Standard 850 (I-P)-2013. 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 accordin
3、g 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 for products covered by this standard/guideline. AHRI uses its best efforts
4、 to develop standards/guidelines employing 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 Se
5、ction 3. Definitions.1 Section 4. Classifications .3 Section 5. Test Requirements 5 Section 6. Rating Requirements 5 Section 7. Minimum Data Requirements for Published Ratings .6 Section 8. Operating Requirements .6 Section 9. Marking and Nameplate Data .7 Section 10. Conformance Conditions 7 APPEND
6、ICES Appendix A. References Normative 8 Appendix B. References Informative 8 Appendix C. Method of Test for Ozone Concentration for Group III Air Filter Equipment Normative 9 Appendix D. AHRI Standard 851(SI) Air Filter Equipment Report Summary Normative 12 Appendix E. Supplemental Procedure for Dev
7、ices with Self-renewal Mechanisms Normative .13 AHRI STANDARD 851 (SI)-2013 1 PERFORMANCE RATING OF COMMERCIAL AND INDUSTRIAL AIR FILTER EQUIPMENT Section 1. Purpose 1.1 Purpose. The purpose of this standard is to establish for commercial and industrial Air Filter Equipment: definitions; classificat
8、ions; 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, contractors and users. 1.1.
9、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 factory-made Air Filter Equipment and Air Filter Media as used in such equipment, for removing particulate matter, when used in environmental conditio
10、ning of inhabited spaces in commercial and industrial facilities 2.2 Exclusions. This standard does not apply to the following: 2.2.1 Air Filter Equipment and Air Filter Media for removing particulate matter, when used in industrial or commercial processes not associated with environmental condition
11、ing of inhabited space. 2.2.2 Air Filter Equipment when used in removing abnormally high concentrations of specific contaminants. 2.2.3 Appliances which include Air Filter Equipment in combination with fans, coils, dampers, etc., but can be applied to the Air Filter Equipment as used therein. 2.2.4
12、Residential air filter equipment covered by AHRI Standard 681 (SI)-2009. 2.2.5 This standard is not intended to apply to HEPA Filters. 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/ASHR
13、AEwiki) unless otherwise defined in this section. 3.1 Air Filter Equipment. Air cleaning equipment used for removing particulate matter. 3.2 Air Filter Media. The part of the Air Filter Equipment which is the actual particulate removing agent. In the case of Group III equipment (Section 4), the term
14、s charging section and/or collecting section shall be used. 3.3 Arrestance (A). A measure of the ability of an air-cleaning device with efficiencies less than 20% in the size range of 3.0- 10.0 m to remove loading dust from test air. Measurements are made of the weight of loading dust, as defined in
15、 ASHRAE 52.2, fed and the weight of dust passing the device during each loading step. The difference between the weight of dust fed and the weight of dust passing the device is calculated as the dust captured by the device. Arrestance is then calculated as the percentage of the dust fed that was cap
16、tured by the device. AHRI STANDARD 851 (SI)-2013 2 3.4 Average Arrestance (Aavg). For an air-cleaning device with efficiencies less than 20% in the size range of 3.0-10.0 m, the average value of the Arrestance values made on the device during the loading test, weighted by the amounts of dust fed to
17、the device during each incremental dust loading step. 3.5 Dust Holding Capacity. For disposable and manually renewable devices, the Average Arrestance multiplied by the amount of ASHRAE dust fed to the device measured to the nearest gram. Dust is fed until either of these conditions occurs: 3.5.1 Th
18、e resistance of the device reaches the Rated Final Resistance. 3.5.2 Two consecutive Arrestance measurements are less than 85% of the maximum Arrestance measured during the run. In this case, the Dust Holding Capacity shall not include dust captured during or after a feed increment in which Arrestan
19、ce has fallen below 85% of the maximum value. 3.5.3 The Arrestance is less than 75% of the peak value. 3.6 HEPA Filter (High Efficiency Particulate Air). A disposable extended media dry-type filter in a rigid frame having minimum particle-collection efficiency of 99.97% for 0.3 micron thermally-gene
20、rated dioctyl phthalate (DOP) particles (as measured in accordance with MIL-STD 282). 3.7 Initial Resistance. The resistance of the device with no dust load, operating at its rated air flow. 3.8 Published Rating. A statement of the assigned values of those performance characteristics, under stated R
21、ating Conditions, by which a unit may be chosen to fit the application. These values apply to all units of like nominal capacity and type (identification) produced by the same manufacturer. As used herein, the term Published Rating includes the rating of all performance characteristics shown on the
22、unit or published in specifications, advertising or other literature controlled by the manufacturer, at stated Rating Conditions. 3.8.1 Application Rating. A rating based on tests performed at application Rating Conditions (other than Standard Rating Conditions). 3.8.2 Standard Rating. A rating base
23、d on tests performed at Standard Rating Conditions. 3.9 Rated Final Resistance. The maximum operating resistance at which the device should be replaced or renewed, as recommended by the manufacturer. 3.10 Rating Conditions. Any set of operating conditions under which a single level of performance re
24、sults and which causes only that level of performance to occur. 3.10.1 Standard Rating Conditions. Rating Conditions used as the basis of comparison for performance characteristics. 3.11 Sealing Means. Edge seals to prevent air by-pass under maximum rated operating conditions. 3.12 Self-renewable Ai
25、r Cleaner. A device that incorporates a means to maintain performance at nearly constant level or within pre-established limits. Examples include roll filters, filters equipped with vacuum cleaning systems, and self-washing electronic air cleaners. The self-renewal action is accomplished by means in
26、corporated within the device itself; actuation may be manual or automatic. 3.13 “Shall“ or “Should.“ “Shall“ or “should“ shall be interpreted as follows: 3.13.1 Shall. Where “Shall“ or “shall not“ is used for a provision specified, that provision is mandatory if compliance with the standard is claim
27、ed. 3.13.2 Should. “Should“ is used to indicate provisions which are not mandatory but which are desirable as good practice. 3.14 Standard Equipment. The minimum assembly of components required to qualify equipment within one of the classification groups. AHRI STANDARD 851 (SI)-2013 3 3.15 Support.
28、The means necessary to hold the Air Filter Media in the air stream and to prevent air bypass around the filter assembly under maximum rated operating conditions. Section 4. Classifications 4.1 Groups. For the purpose of this standard, Air Filter Equipment and Air Filter Media are classified into gro
29、ups: 4.1.1 Group I - Unit or panel 4.1.2 Group II - Extended surface 4.1.3 Group III - Electronic Air Cleaner 4.1.4 Group IV - Air Filter Media 4.1.5 Group V - Self-cleaning, Self-renewable Air Cleaner, or any combination thereof 4.2 Descriptions. 4.2.1 Group I. This group of filters shall include u
30、nit or panel type air cleaners. Equipment of this type is characterized by flat shallow assemblies in which the velocity of the air stream approaches the velocity through the Air Filter Media. The equipment may be of the permanent cleanable type, or of the disposable non-renewable type, and may be d
31、ry or viscous-coated. Viscous impingement filters are included in this group. 4.2.2 Group II. This group of filters shall include extended surface types. Equipment of this type is characterized by pleated or pocket configuration, wherein the approach velocity of the air stream is substantially great
32、er than the velocity through the Air Filter Media. The equipment may be of the cleanable type or of the disposable type and may be dry or viscous-coated. 4.2.3 Group III. This group of filters shall include electronic air cleaners. Equipment of this type uses high voltage electrostatic principles to
33、 collect particulate matter. These filters may be of single-stage or multiple-stage configuration. Part or all of the charging and/or collecting sections may be manually cleanable, automatically cleanable, or disposable. 4.2.4 Group IV. This group shall include all media used for Group I, II, III, o
34、r V. Air Filter Media is one component part of Air Filter Equipment; therefore, performance ratings cannot be applied to Air Filter Media alone, but only to Air Filter Equipment in which the media component has been tested. This group is identified for classification purposes only. 4.2.5 Group V. Th
35、is group of filters shall include self-cleaning, self-renewable, or any combinations thereof. Equipment of this type is characterized by their automatic, semi-automatic or manual cleaning and/or renewal mechanism. These may include disposable moving curtains, self-cleaning stationary curtains or sel
36、f-cleaning moving curtains. 4.3 Standard Equipment. Standard and optional equipment for Groups I, II, III, and V are specified in this section. 4.3.1 Equipment which is classified as Group I or II filters shall consist of: 4.3.1.1 Air Filter Media 4.3.1.2 Support 4.3.1.3 Sealing Means 4.3.2 Equipmen
37、t which is classified as Group III filters shall consist of: 4.3.2.1 High voltage power supply - A means of supplying high voltage for the Air Filter Equipment AHRI STANDARD 851 (SI)-2013 4 4.3.2.2 Support 4.3.2.3 Safety controls - A means of positively breaking line voltage power to the device 4.3.
38、2.4 Operating controls 4.3.2.5 Collecting section - A means of collecting particulate matter. Examples are: 4.3.2.5.1 Electrically charged plates which may be viscous coated and which may require periodic cleaning 4.3.2.5.2 Electrically charged plates which hold the collected particles plus a second
39、ary downstream filter which collects the re-entrained particles 4.3.2.5.3 Media and electrically charged active and/or passive grid(s) 4.3.2.6 Charging section (multi-stage equipment only) - The section of the equipment which imparts an electrical charge to the particulate matter. 4.3.2.7 Connectors
40、 - A means of transferring high voltage from the power source to the collecting and charging section. 4.3.3 Equipment which is classified as Group V filters shall consist of: 4.3.3.1 Air Filter Media 4.3.3.2 Support 4.3.3.3 Sealing Means 4.3.3.4 Renewal and/or cleaning means 4.3.3.5 Operating contro
41、ls (for automatic equipment only) - manual and/or automatic means for initiating and terminating the renewal or cleaning cycle 4.3.4 Optional Equipment. Optional equipment may include: viscous coatings, frames, automatic control systems, wash accessories or washing systems, pre-filters or after-filt
42、ers. Section 5. Test Requirements 5.1 Method of Test for Rating. Testing of Groups I, II, III, and V Air Filter Equipment shall be in accordance with ASHRAE Standard 52.2, unless modified below. The equipment shall be tested in accordance with the operating procedure recommended by the manufacturer.
43、 Air Filter Equipment in Group V shall be tested using the test program for dust loading effects specified for self-renewable equipment designed to control primarily the resistance of the equipment at or within pre-established limits. Refer to Appendix E for additional requirements. 5.1.1 Equipment
44、Preparation. The complete air cleaning equipment shall be prepared in accordance with the manufacturers recommendations. Preparation shall include: 5.1.1.1 Application (type, amount and method) of viscous coating if the equipment is normally viscous coated 5.1.1.2 Proper mounting of the equipment to
45、 ensure the flow of air through the filtering media AHRI STANDARD 851 (SI)-2013 5 5.1.1.3 All Group III equipment shall be run-in for a period of 24 hours prior to test by applying rated nameplate voltage to the device 5.1.1.4 Any other preparations that are recommended by the manufacturer in order
46、to demonstrate the devices intended performance. Airflow across the equipment is not required during the run-in period 5.1.2 Multiple Airflow Rates. When equipment is intended to operate at more than one velocity or airflow rate, the equipment shall be tested at those alternate velocities or airflow
47、 rates for which Standard Ratings are published by the manufacturer. 5.2 Method of Testing for Ozone Concentration. Group III Air Filter Equipment shall be tested for ozone concentration in accordance with Appendix C of this standard. Section 6. Rating Requirements 6.1 Published Ratings. All Publish
48、ed Ratings shall include Standard Ratings and Standard Rating Conditions, but may also include Application Ratings where a statement of conditions of temperature, humidity, and airflow rate, as well as input voltages (where applicable), are provided. 6.1.1 Reporting Results. Test results shall be re
49、ported using the test report format as shown in Appendix C and Appendix D. 6.1.2 Standard Ratings. Standard rating shall be established at the rating conditions as defined in Section 5. The rating data that shall be published are shown below: 6.1.2.1 Initial Resistance 6.1.2.2 Rated Final Resistance 6.1.2.3 Dust Holding Capacity 6.1.2.4 Particle Size Efficiency for three particle size ranges: 0.30 m to 1.0 m, 1.0 m to 3.0 m, and 3.0 m to 10 m. 6.1.2.5 Ozone concentration (for Group III Air Filter Equipment) 6.1.2.6 Rated input power 6.1.3 Values of S
