This document specifies the rating conditions, tolerances and the method of presenting performance data of refrigerant compressors to enable comparison of different compressors.
This document is applicable to single-stage compressor and two-stage compressor data with or without an additional intermediate pressure inlet.
The performance data of compressors used with R-744 in transcritical operation are covered in this document.
The data relating to the refrigerating capacity, heating capacity and power absorbed include requirements for part-load operation where applicable.
PUBLISHED
SSH EN 12900:2013
IN_DEVELOPMENT
prSSH EN 12900:2025
40.20
DIS ballot initiated: 12 weeks
Feb 9, 2026
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