TS EN 14511-1

TS EN 14511-1 is Part 1 of the EN 14511 series and defines the terminology used for electrically driven compressor air conditioners, liquid chilling packages, and heat pumps for space heating and cooling. Its role is to align the language used around performance and rating, so that the core concepts behind air, water, and hybrid systems are interpreted consistently across technical documents.

System types and the application context

The standard addresses air-cooled and water-cooled air conditioners, liquid chilling packages, and air-to-air, water-to-air, air-to-water, and water-to-water heat pumps. In general technical terms, these are factory-made units that transfer heat to or from a conditioned space, and they may be ducted. A terminology standard like this supports consistent use of concepts such as nominal conditions, performance, capacity, and operating mode in specifications, catalogues, and comparisons.

Boundaries and why they matter

It does not specifically apply to heat pumps for sanitary hot water, although some of its definitions can be used for those systems as well. Industrial process installations are also outside its scope. That distinction matters because comfort heating and cooling and process applications often operate under different design assumptions, duty profiles, and terminology usage. This document therefore functions as a shared technical vocabulary rather than a design or test manual.

This listing represents the term-and-definition part of EN 14511, helping users understand the language that underpins rating and performance assessment in the series. It provides conceptual clarity for the equipment family without itself setting performance limits or measurement procedures.