ANSI AHRI 350-2015 Sound Performance Rating of Non-ducted Indoor Airconditioning and Heat Pump Equipment.pdf
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1、 2015 Standard for Sound Performance Rating of Non-ducted Indoor Air-conditioning and Heat Pump Equipment Approved by ANSI on July 15, 2016 ANSI/AHRI Standard 350 Price $10.00 (M) $20.00 (NM) Copyright 2015, by Air-Conditioning, Heating, and Refrigeration Institute Printed in U.S.A. Registered Unite
2、d States Patent and Trademark Office 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 strongly recommende
3、d 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 employing state-of-the-a
4、rt 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. Note: This standard supersedes AHRI Standard 350-2008. Foreword This standard references the sound intensity test method defined in
5、ANSI/AHRI Standard 230, as an alternate method of test to the reverberation room test method defined in ANSI/AHRI Standard 220 for determination of sound power ratings. Provisions for addressing Concealed versus Exposed Equipment test configurations have been added. TABLE OF CONTENTS SECTION PAGE Se
6、ction 1. Purpose 1 Section 2. Scope . 1 Section 3. Definitions . 1 Section 4. Test Requirements . 2 Section 5. Rating Requirements . 5 Section 6. Minimum Data Requirements for Published Ratings 6 Section 7. Marking and Nameplate Data . 6 Section 8. Conformance Conditions. 6 TABLES Table 1. Reproduci
7、bility in the Determination of Non-ducted Equipment Sound Power Levels 5 FIGURES Figure 1. Location of Equipment in the Test Room . 3 APPENDICES Appendix A. References Normative 7 Appendix B. References Informative 8 Appendix C. Examples of Various Types of Exposed and Concealed Equipment Informativ
8、e 9 FIGURES FOR APPENDICES Figure C1. Exposed Sill Unit 9 Figure C2. Exposed Vertical Stack Unit . 9 Figure C3. Exposed Horizontal Fan Coil Unit 10 Figure C4. Concealed Sill Unit . 11 Figure C5. Concealed Vertical Stack Unit 11 Figure C6. Concealed Horizontal Fan Coil Unit . 12 Figure C7. Concealed
9、Vertical Stack Unit Test Setup 5cm x 10cm Studs Cladded with 1.3cm Thick Drywall . 13 Figure C8. Concealed Horizontal Stack Unit Test Setup Cladded with 1.3cm Thick Drywall . 13 ANSI/AHRI STANDARD 350-2015 1 SOUND PERFORMANCE RATING OF NON-DUCTED INDOOR AIR-CONDITIONING AND HEAT PUMP EQUIPMENT Secti
10、on 1. Purpose 1.1 Purpose. The purpose of this standard is to establish for Non-ducted Indoor Air-conditioning and Heat Pump Equipment definitions; test requirements; rating requirements; minimum data requirements for Published Ratings; marking and nameplate data; and conformance conditions. 1.1.1 I
11、ntent. This standard 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 the indo
12、or portions of factory-made Non-ducted Air-conditioning and Heat Pump Equipment as defined in ANSI/AHRI Standards 210/240, 340/360, 310/380, 440 and 1230. Products covered include but are not limited to: fan coils, air-source unitary heat pumps as well as unitary air-conditioners, water-source heat
13、pumps, packaged terminal equipment, and variable refrigerant flow (VRF) systems. Section 3. Definitions All terms in this document will follow the standard industry definitions in the ASHRAE Terminology website (https:/www.ashrae.org/resources-publications/free-resources/ashrae-terminology) unless o
14、therwise defined in this section. 3.1 Concealed Equipment. Non-ducted Indoor Air-conditioning and Heat Pump Equipment that is designed to be located outside of the occupied space such that the casing radiated noise is acoustically isolated from the inlet and discharge sound. Refer to Appendix C for
15、examples of various types of Concealed Equipment configurations. 3.2 Exposed Equipment. Non-ducted Indoor Air-conditioning and Heat Pump Equipment that is in the occupied space such that the casing radiated noise is included with the inlet and discharge sound. Refer to Appendix C for examples of var
16、ious types of Exposed Equipment configurations. 3.3 Hertz (Hz). A unit of frequency equal to one cycle per second. 3.4 Non-ducted Indoor Air-conditioning and Heat Pump Equipment. For the purposes of this standard, non-ducted equipment communicates with the occupied space by free delivery and inlet o
17、r through enclosed airways with lengths less than 1 effective duct diameter. 3.5 Octave Band. A band of sound covering a range of frequencies such that the highest is twice the lowest. The Octave Bands used in this standard are those defined in ANSI/ASA Standard S1.11. 3.6 One-third Octave Band. A b
18、and of sound covering a range of frequencies such that the highest frequency is the cube root of two times the lowest frequency. The One-third Octave Bands used in this standard are those defined in ANSI/ASA Standard S1.11. 3.7 Published Rating. A statement of the assigned values of those performanc
19、e 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. As used herein, the term Published Rating includes the rating of all performance
20、characteristics shown on the unit or published in specifications, advertising or other literature controlled by the manufacturer, at stated rating conditions. ANSI/AHRI STANDARD 350-2015 2 3.7.1 Application Rating. A rating based on tests performed at application Rating Conditions (other than Standa
21、rd Rating Conditions). 3.7.2 Standard Rating. A rating based on tests performed at Standard Rating Conditions. 3.8 Reference Sound Source (RSS). Portable, aerodynamic sound source that produces a known stable broad band sound power output as defined in ANSI/AHRI Standard 250. 3.9 Reproducibility. De
22、viations in test results are obtained with the same method on identical test items in different laboratories with different operators using different equipment. 3.10 “Shall” or “Should”. “Shall” or “should” shall be interpreted as follows: 3.10.1 Shall. Where “shall” or “shall not” is used for a pro
23、vision specified, that provision is mandatory if compliance with the standard is claimed. 3.10.2 Should. “Should” is used to indicate provisions which are not mandatory but which are desirable as good practice. 3.11 Sound Power Level, Lw. Ten times the logarithm to the base ten of the ratio of the s
24、ound power radiated by the source to a reference sound power, expressed in decibels, dB. The reference sound power used in this standard is 1 picowatt, pW. 3.11.1 A-weighted Sound Power Level, LwA. The logarithmic summation of A-weighted, one-third octave band Sound Power Levels. 3.12 Sound Pressure
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