ISO 18483:2025 PDF

This document specifies the rating requirements, published ratings and marking provisions of centrifugal refrigerant compressors. This document applies to centrifugal compressors and their performance in heating, ventilation and air-conditioning applications. This document provides guidance and requirements for the industry, including manufacturers, engineers, installers and contractors. It defines the minimum amount of information in a standardized form to enable the evaluation and comparison of different compressors for use in an application and suggests a method to be used to guarantee the accuracy of that information.