Outlines the results of ASHRAE research project 786-RP aimed at preparing a guidebook on how to utilise manufacturers' published acoustical data in the design of quiet HVAC systems. The principal objective of the project was to develop a practical, user-friendly guide that provides information on acoustical testing, prediction and rating procedures currently used by the industry and how these are related to the proper application of HVAC data to noise control in system design.

KEYWORDS: year 1997, Research, heating, ventilation, air conditioning, comfort, acoustics, data, designing, handbooks, noise control