DS/EN 14511-1:2018

Air conditioners, liquid chilling packages and heat pumps for space heating and cooling and process chillers, with electrically driven compressors – Part 1: Terms and definitions

Under revision:
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Building Regulations 2015​

Building work in new and altered buildings in Denmark

The Building Regulations contain the Danish rules for building work in new buildings, extensions, conversions and other rebuilding work, as well as changes in the use of buildings that are important in relation to the Danish Building Act or the Building Regulations, the demolition of buildings and alterations and other rebuilding work that may affect the consumption of energy in the building. The Building Regulations apply to building work carried out in the Danish market.

Their primary field of application is multi-storey buildings for residential purposes and all kinds of commercial, industrial and institutional buildings, including the categories listed in section 11 of the Danish Building Act, single-family houses for permanent residence, either as detached single-family houses or linked single-family houses, holiday homes in summer house areas, allotment sheds, campsite cabins and garages, outbuildings, and other secondary buildings.

You can read more about the Danish Building Regulations here:  http://bygningsreglementet.dk/


This European Standard specifies the terms and definitions for the rating and performance of air conditioners, liquid chilling packages and heat pumps using either air, water or brine as heat transfer media, with electrically driven compressors when used for space heating and/or cooling.

It also specifies the terms and definitions for the rating and performance of process chillers.

This European Standard does not apply to heat pumps for domestic hot water, although certain definitions can be applied to these.

This European Standard applies to:

- factory-made units that can be ducted,

- factory-made liquid chilling packages with integral condensers or for use with remote condensers,

- factory-made units of either fixed capacity or variable capacity by any means, and

- air-to-air air conditioners which can also evaporate the condensate on the condenser side.

Packaged units, single split and multisplit systems are covered by this standard. Single duct and double duct units are covered by the standard.

In the case of units consisting of several parts, this European Standard applies only to those designed and supplied as a complete package, except for liquid chilling packages with remote condenser.

This European Standard is primarily intended for water and brine chilling packages but can be used for other liquid subject to agreement.

The units having their condenser cooled by air and by the evaporation of external additional water should have their performance in the cooling mode determined in accordance to EN 15218. For those which can also operate in the heating mode, the EN 14511 series applies for the determination of their performance in the heating mode.

NOTE 1 – Part load testing of units is dealt with in EN 14825.

NOTE 2 – All the symbols given in this text are used regardless of the language.

Under revision

Number of pages: 17

Published: 2018-03-21

Date of approval: 2018-03-20

International relationships : EN 14511-1:2018 IDT

ICS: 27.080 - Heat pumps 01.040.27 - Energy and heat transfer engineering (Vocabularies) 01.040.91 - Construction materials and building (Vocabularies) 91.140.30 - Ventilation and air-conditioning systems

Item number: M299896



  • CEN/TC 113
  • CEN/TC 113/WG 8

Danish committee