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AHRI 260 I-P

2012 Edition, January 1, 2012

Complete Document

Sound Rating of Ducted Air Moving and Conditioning Equipment

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Description / Abstract:

This standard applies to Ducted Equipment and specifies the methods for the determination of the sound power rating of the indoor sections of factory-made residential, commercial and industrial air-conditioning and heat pump equipment, which are electrically driven, with mechanical compression and containing fans, using mapped sound data for rating the various product Sound Components. Sound power ratings reported are octaveband Sound Power Levels from 63 Hz to 8000 Hz. The terms Air-Conditioner and equipment are used to mean Air- Conditioners and Heat Pumps in this part of the standard. In addition to the stated octave band ratings, this standard can additionally be used to provide one-third octave band sound ratings from 50 to 10,000 Hz.


The purpose of this standard is to establish a method of sound rating the indoor portions of ducted air moving and conditioning equipment. The standard provides definitions; requirements for acquiring mapped sound data; sound power level calculations and ratings; minimum data requirements for published sound ratings; and conformance conditions.

Intent. This standard is intended for the guidance of the industry, including manufacturers, engineers, installers, contractors and users.

Review and Amendment. This standard is subject to review and amendment as technology advances.