Reference details

Reference
EN 255-3:1997
Title
Air conditioners, liquid chilling packages and heat pumps with electrically driven compressors - Heating mode - Part 3: Testing and requirements for marking for sanitary hot water units
Organisation
CEN
Publisher status in source
WithdrawnThis is the status recorded in the source, not a statement that this is the latest edition.
Source access
19 October 2026

Research and application

Begin with the official scope and the product configuration. The title identifies a subject; it does not establish every product, use condition or legal requirement covered by the publication.

Product research routes

Questions for the evidence file

  • System and refrigerant data
  • Installation constraints
  • Control settings
  • Performance test conditions
  • Package-and-content configuration
  • Distribution assumptions

Record the exact edition and associated amendments, the assessed object, the evidence examined and the limits of the conclusion. Explore IESQ research for detailed product and standard studies.