ARI 300-2008 Sound Rating and Sound Transmission Loss of Packaged Terminal Equipment.pdf

1、 Price $10.00 (M) $20.00 (NM) Copyright 2000, by Air-Conditioning and Refrigeration 2008 Standard for Sound Rating and Sound Transmission Loss of Packaged Terminal Equipment AHRI Standard 300(formerly ARI Standard 300)Copyright Air-Conditioning, Heating and Refrigeration Institute Provided by IHS un

2、der license with ARI Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-Price $10.00 (M) $20.00 (NM) Copyright 2008, by Air-Conditioning, Heating, and Refrigeration Institute Printed in U.S.A. Registered United States Patent and Trademark Office IMPORTANT SAFETY DISCL

3、AIMER 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 recommended that products be designed, constructed, assembled, instal

4、led 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-art and accepted industry practices. AHRI does not certify o

5、r guarantee that any tests conducted under its standards/guidelines will be non-hazardous or free from risk. Note: This standard supersedes ARI Standard 300-2000. Note: This version of the standard differs from the 2000 version of the standard in the following: a. The tone adjusted A-Weighted Sound

6、Power Level (LWAT) has been eliminated. b. An optional Sound Quality Indicator (SQI) per AHRI Standard 1140 has been added. c. This standard references AHRI Standard 220 for reverberation room qualification and testing, replacing ANSI Standard S12.31 and ANSI Standard S12.32, which were withdrawn. C

7、opyright Air-Conditioning, Heating 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. Purpose 1 Section 2. Scope .1 Section 3. Definitions .1 Section 4. Test R

8、equirements .2 Section 5. Rating Requirements .3 Section 6. Minimum Data Requirements for Published Ratings 4 Section 7. Marking and Nameplate Data 4 Section 8. Conformance Conditions .4 APPENDICES Appendix A. References - Normative .5 Appendix B. References Informative 6 Copyright Air-Conditioning,

9、 Heating and Refrigeration Institute Provided by IHS under license with ARI Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-Copyright Air-Conditioning, Heating and Refrigeration Institute Provided by IHS under license with ARI Not for ResaleNo reproduction or netwo

10、rking permitted without license from IHS-,-,-AHRI STANDARD 300-2008 (formerly ARI STANDARD 300-2008) 1 SOUND RATING AND SOUND TRANSMISSION LOSS OF PACKAGED TERMINAL EQUIPMENT Section 1. Purpose 1.1 Purpose. The purpose of this standard is to establish, for packaged terminal equipment: definitions; t

11、est requirements; rating requirements; minimum data requirements for Published Ratings; and conformance conditions. Additionally, this standard establishes a method to determine sound transmission loss for Packaged Terminal Equipment. 1.1.1 Intent. This standard is intended for the guidance of the i

12、ndustry, 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 indoor and outdoor sections of factory-made Packaged Terminal

13、Equipment as defined in AHRI Standard 310/380. Section 3. Definitions All terms in this document shall follow the standard industry definitions established in the current edition of ASHRAE Terminology of Heating, Ventilation, Air-Conditioning and Refrigeration, unless otherwise defined in this secti

14、on. 3.1 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 Standard S1.11. 3.2 One-Third Octave Band. A band of sound covering a range of frequencies such that the highest frequency

15、is the cube root of two times the lowest. The One-Third Octave Bands used in this standard are those defined in ANSI Standard S1.11. 3.3 Outdoor-Indoor Transmission Class (OITC). The A-weighted sound reduction calculated using the equipment sound transmission loss in the range of 80 to 4000 Hz, as m

16、easured in accordance with ASTM 1332 Test Method E90. 3.4 Packaged Terminal Air-Conditioner. A wall sleeve and a separate unencased combination of heating and cooling assemblies specified by the builder and intended for mounting through the wall. It includes a prime source of refrigeration, separabl

17、e outdoor louvers, forced ventilation and heating availability by purchasers choice of at least hot water, steam or electric resistance heat. 3.5 Packaged Terminal Heat Pump. A separate unencased refrigeration system installed in a cabinet of similar function and configuration to that of a Packaged

18、Terminal Air-Conditioner. It utilizes reverse cycle refrigeration as its prime heat source and has other supplementary heat source availability by purchasers choice of at least hot water, steam or electric resistance heat. 3.6 Published Rating. A statement of the assigned values of those performance

19、 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 term Published Rating includes the Copyright Air-Conditioning, Heating and Ref

20、rigeration Institute Provided by IHS under license with ARI Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-AHRI STANDARD 300-2008 (formerly ARI STANDARD 300-2008) 2 rating of all performance characteristics shown on the unit or published in specifications, adverti

21、sing or other literature controlled by the manufacturer, at stated Rating Conditions. 3.6.1 Application Rating. A rating based on tests performed at application Rating Conditions (other than Standard Rating Conditions). 3.6.2 Standard Rating. A rating based on tests performed at Standard Rating Cond

22、itions. 3.7 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. 3.7.1 Standard Rating Conditions. Rating conditions used as the basis of comparison for performance characteristics. 3.8 Referenc

23、e Sound Source (RSS). A portable, aerodynamic sound source that produces a known stable broadband sound. 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 complianc

24、e with the 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 Sound Power Level, Lw. Ten times the logarithm to the base ten of the ratio of the sound power radiated by the source to a reference sound powe

25、r, expressed in decibels (dB). The reference sound power used in this standard is 1 picowatt (pW). 3.10.1 A-Weighted Sound Power Level, LwA. The logarithmic summation of A-Weighted, one-third octave band Sound Power Levels. 3.11 Sound Quality Indicator (SQI). The calculated metric determined when fo

26、llowing the procedure contained in AHRI Standard 1140 for quantifying sound quality whereby measured sound levels are weighted to adjust for psychoacoustic sensitivity to frequency distribution and any discreet tones which may be present and then converted to a single number Sound Quality Indicator.

27、 3.12 Sound Transmission Class (STC). A single-number rating derived from sound transmission loss data in accordance with the method described in ASTM Standard E413. Section 4. Test Requirements 4.1 Test Requirements. All standard sound power level ratings shall be determined by tests conducted in a

28、 reverberation room meeting the requirements of and qualified in accordance with AHRI Standard 220 except as noted within the body of this standard. Sound Power Levels for the unit under test shall be determined per AHRI Standard 220. A Reference Sound Source (RSS) shall be used that meets the perfo

29、rmance requirements of and is calibrated per AHRI Standard 250. 4.1.2 Sound tests for the determination of sound transmission loss shall be conducted in accordance with ASTM Standards E90. Copyright Air-Conditioning, Heating and Refrigeration Institute Provided by IHS under license with ARI Not for

30、ResaleNo reproduction or networking permitted without license from IHS-,-,-AHRI STANDARD 300-2008 (formerly ARI STANDARD 300-2008) 3 4.1.3 Indoor/outdoor sound power ratings shall be determined in accordance with AHRI Standards 350 and 270, respectively. 4.2 Mounting of Equipment for Testing. 4.2.1

31、Indoor Sound Rating. The unit shall be mounted in accordance with the provisions of AHRI Standard 350. 4.2.2 Outdoor Sound Rating. The unit shall be mounted to have the minimum protrusion outdoors as recommended by the manufacturer. In no case shall the unit be recessed. 4.2.3 Sound Transmission Los

32、s. The unit shall be mounted in accordance with the provisions of ASTM Standard E90 with the unit not running and with the damper closed. This rating shall be calculated using the area of the outside dimensions of that portion of the wall sleeve that penetrates the outer face of the wall. 4.3 Electr

33、ical Characteristics. Tests shall be performed at the rated voltage(s), phase and frequency specified on the unit nameplate, and measured at the unit service connection. 4.4 Operation. All components required to produce the standard rating cooling capacity under the appropriate AHRI standard shall b

34、e operated while data is being taken. Standard Rating Conditions (cooling) for the appropriate standard shall be maintained. Section 5. Rating Requirements 5.1 Introduction. The sound ratings shall be applicable for the complete unit operating. The ratings shall be comprised of: Octave band Sound Po

35、wer Levels, (Lw), dB (125 Hz to 8,000 Hz are required, 63 Hz is optional) Overall A-Weighted Sound Power Level, (LwA), dB (100 Hz to 10,000 Hz are required, 50 Hz to 10,000 Hz are optional) STC and OITC ratings Optional Ratings may include: Sound quality indicator (SQI) per AHRI Standard 1140 (optio

36、nal) One-third octave band Sound Power Levels, dB (optional) 5.2 Sound Transmission Loss. This standard employs three distinct characterizations for sound transmission loss: a. One-Third octave band sound transmission loss b. Sound Transmission Class (STC) c. Outdoor-Indoor Transmission Class (OITC)

37、 5.3 Rating Requirements. Indoor sound ratings shall be determined in accordance with the provisions of AHRI Standard 350. Outdoor sound ratings shall be determined in accordance with the provisions of AHRI Standard 270. Sound Transmission Class (STC) shall be determined in accordance with ASTM Stan

38、dard E413. Outdoor-Indoor Transmission Class (OITC) shall be determined in accordance with ASTM Standard E1332 using test method E90. 5.4 Application Ratings. Application sound ratings for conditions other than standard shall be based upon tests conducted at those conditions. 5.5 Rating Tolerances.

39、Any equipment selected at random and tested in any suitably qualified laboratory in accordance with this standard, shall not have a sound rating higher than its published sound rating. It also, shall not have STC and OITC values less than its published Standard STC and OITC values. Copyright Air-Con

40、ditioning, Heating and Refrigeration Institute Provided by IHS under license with ARI Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-AHRI STANDARD 300-2008 (formerly ARI STANDARD 300-2008) 4 Section 6. Minimum Data Requirements for Published Ratings 6.1 Published

41、Ratings. Published sound power ratings shall be for the unit with all components running that are necessary to produce the AHRI standard thermal rating. The sound power ratings shall include items 1 and 2 as listed below; items 3 and 4 are optional. 1. The octave band Sound Power Levels to the neare

42、st decibel from 125 Hz to 8,000 Hz (63 Hz is optional). 2. The overall A-Weighted Sound Power Level to the nearest decibel covering the range of 100 Hz to 10,000 Hz (or optionally from 50 Hz to 10,000 Hz). 3. Optionally, the Sound Quality Indicator (SQI) may be published. The SQI shall be rounded to

43、 the nearest 0.1. 4. Optionally, the one-third octave band Sound Power Levels to the nearest 0.1 decibel may be published. 6.1.1 Published Transmission Loss Ratings. Published transmission loss ratings shall include One-third octave band transmission loss data, STC, and OITC. 6.2 Standard Sound Rati

44、ng. When AHRI standard thermal rating conditions have been established for the equipment, a standard sound rating shall be published for the unit operating at those conditions. All claims to sound ratings within the scope of this standard shall include the statement “Rated in accordance with AHRI St

45、andard 300”. All claims to ratings outside the scope of this standard shall include the statement “Outside the scope of AHRI Standard 300”. Wherever application sound ratings are published or printed, they shall include a statement of the standard thermal rating conditions at which the ratings apply

46、 and be accompanied by the standard sound rating. Section 7. Marking and Nameplate Data 7.1 Marking and Nameplate Data. As a minimum, the nameplate shall display the manufacturers name, model designation, and electrical characteristics. Nameplate voltages for 60 Hertz systems shall include one or mo

47、re of the equipment nameplate voltage ratings shown in Table 1 of AHRI Standard 110. Nameplate voltages for 50 Hertz systems shall include one or more of the utilization voltages shown in Table 1 of IEC Standard 60038. Section 8. Conformance Conditions 8.1 Conformance. While conformance with this st

48、andard 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 claims meet all of the requirements of the standard and all of the testing and rating requirements are measured and reported in comple

49、te compliance with the standard. Any product that has not met all the requirements of the standard cannot reference, state, or acknowledge the standard in any written, oral, or electronic communication. Copyright Air-Conditioning, Heating and Refrigeration Institute Provided by IHS under license with ARI Not for ResaleNo reproduction or networking permitted without license