EN 14825:2022/prA1

SLOVENSKI STANDARD
01-december-2023
Klimatske naprave, enote za hlajenje kapljevine ter toplotne črpalke za ogrevanje
in hlajenje prostora z električnimi kompresorji, profesionalno in procesno hlajenje
prostora - Preskušanje in ocenitev ob delni obremenitvi ter izračun letnega učinka
- Dopolnilo A1
Air conditioners, liquid chilling packages and heat pumps, with electrically driven
compressors, for space heating and cooling, commercial and process cooling - Testing
and rating at part load conditions and calculation of seasonal performance
Luftkonditionierer, Flüssigkeitskühlsätze und Wärmepumpen mit elektrisch
angetriebenen Verdichtern zur Raumbeheizung und -kühlung, gewerblichen Kühlung
und Prozesskühlung - Prüfung und Leistungsbemessung unter Teillastbedingungen und
Berechnung der jahreszeitbedingten Leistungszahl
Climatiseurs, groupes refroidisseurs de liquide et pompes à chaleur avec compresseur
entraîné par moteur électrique pour le chauffage et le refroidissement des locaux, le froid
commercial et industriel - Essais et détermination des caractéristiques à charge partielle
et calcul de performance saisonnière
Ta slovenski standard je istoveten z: EN 14825:2022/prA1
ICS:
23.120 Zračniki. Vetrniki. Klimatske Ventilators. Fans. Air-
naprave conditioners
27.080 Toplotne črpalke Heat pumps
91.140.30 Prezračevalni in klimatski Ventilation and air-
sistemi conditioning systems
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

DRAFT
EUROPEAN STANDARD
EN 14825:2022
NORME EUROPÉENNE
EUROPÄISCHE NORM
prA1
October 2023
ICS 27.080; 91.140.30
English Version
Air conditioners, liquid chilling packages and heat pumps,
with electrically driven compressors, for space heating and
cooling, commercial and process cooling - Testing and
rating at part load conditions and calculation of seasonal
performance
Climatiseurs, groupes refroidisseurs de liquide et Luftkonditionierer, Flüssigkeitskühlsätze und
pompes à chaleur avec compresseur entraîné par Wärmepumpen mit elektrisch angetriebenen
moteur électrique pour le chauffage et le Verdichtern zur Raumbeheizung und -kühlung -
refroidissement des locaux, le froid commercial et Prüfung und Leistungsbemessung unter
industriel - Essais et détermination des Teillastbedingungen und Berechnung der
caractéristiques à char jahreszeitbedingten Leistungszahl
This draft amendment is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee CEN/TC 113.

This draft amendment A1, if approved, will modify the European Standard EN 14825:2022. If this draft becomes an amendment,
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for inclusion of
this amendment into the relevant national standard without any alteration.

This draft amendment was established by CEN in three official versions (English, French, German). A version in any other
language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC
Management Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and
United Kingdom.
Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are
aware and to provide supporting documentation.

Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without
notice and shall not be referred to as a European Standard.

EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2023 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 14825:2022/prA1:2023 E
worldwide for CEN national Members.

1 Contents Page
2 European foreword . 4
3 Introduction . 5
4 1 Modification to Clause 2, “Normative references” . 6
5 2 Modifications to Clause 3, “Terms and definitions” . 6
6 3 Modification to 3.2, “Symbols, abbreviated terms and units” . 6
7 4 Modification to 6.3, “Water(brine)-to-air-units” . 7
8 5 Modification to 6.4.2, “Low temperature application” . 7
9 6 Modification to 6.4.3, “Intermediate temperature application” . 7
10 7 Modification to 6.4.4, “Medium temperature application” . 7
11 8 Modification to 6.4.5, “High temperature application” . 7
12 9 Modification to 6.5.2, “Low temperature application” . 7
13 10 Modification to 6.5.3, “Intermediate temperature application” . 7
14 11 Modification to 6.5.4, “Medium temperature application” . 7
15 12 Modification to 6.5.5, “High temperature application . 7
16 13 Modification to 8.1, “General” . 7
17 14 Modification to 8.2.2.2, “Test installation and measurement” . 8
18 15 Modification to 8.2.3, “Boiler testing” . 8
19 16 Modification to 8.3.2, “Test conditions and measurements” . 8
20 17 Modification to 8.3.3, “Test installation” . 8
21 18 Modification to 8.3.4.1, “Volume Flow” . 8
22 19 Modification to 11.1, “General” . 8
23 20 Modification to 11.2, “Refrigerant piping” . 8
24 21 Modification to 11.3, “Basic principles” . 8
25 22 Modification to 11.4, “Uncertainties of measurement” . 8
26 23 Modification to 11.5.1, “General” . 8
27 24 Modification to 11.5.2.1, “General” . 9
28 25 Modification to 11.5.3, “Air-to-water(brine), water(brine)-to-water(brine) and DX-
29 to-water(brine) units – Determination of the degradation coefficient Cd” . 9
30 26 Modification to 11.6.3, “Compensation method” . 9
31 27 Modification to 12.2, “Measurement of electric power input during thermostat-off
32 mode” . 9
33 28 Modification to Clause 13, “Test report” . 9
34 29 Addition of a new Clause 15, “Controls verification procedure (CVP)” . 9
35 30 Addition of a new Clause 16, “Indoor unit(s) air flow rate measurement” .9
36 31 Modification to E.2, “Test procedure for an air-to-water unit with fixed water flow
37 rate” . 10
38 32 Modification to E.3, “Test procedure for an air-to-water unit with variable water
39 flow rate” . 10
40 33 Modification to Annex G, “Calculation example for SCOP and SCOP – Application
on net
41 to a fixed capacity air-to-water(brine) heat pump used for low temperature
42 application” . 10
43 34 Modification to Annex H, “Calculation example for SCOP and SCOP ” . 10
on net
44 35 Modification to Annex K, “Compensation methods for air-to-water(brine) and
45 water(brine)-to-water(brine) units” . 10
46 36 Modification to M.2, “Test methods” . 10
47 37 Modification to M.2.2, “Air enthalpy method” . 10
48 38 Modification to M.2.2.1, “3-room air enthalpy method” . 11
49 39 Addition of annexes . 11
50 Annex N (normative) Controls verification procedure (CVP) test to verify the compressor
51 frequency . 12
52 N.1 General . 12
53 N.2 Air-to-air units . 14
54 N.3 Air-to-water(brine), water(brine)-to-water(brine) systems and DX-to-water(brine)
55 systems . 15
56 N.4 Uncertainty of measurement and permissible deviation . 17
57 N.5 Retesting . 18
58 Annex O (normative) Indoor unit airflow rate measurement, setting and verification for
59 air-to-air units with a rated capacity of ≤ 12 kW . 19
60 O.1 General . 19
61 O.2 Test conditions . 19
62 O.3 Airflow measurement . 21
63 O.4 Uncertainty of measurement and permissible deviations . 21
64 European foreword
65 This document EN 14825:2022/prA1:2023 has been prepared by Technical Committee CEN/TC 113
66 “Heat pumps and air conditioning units”, the secretariat of which is held by UNE.
67 This document is currently submitted to the CEN Enquiry.
68 This document will amend EN 14825:2022.
69 EN 14825:2022/prA1:2023 includes the following significant technical changes with respect to
70 EN 14825:2022:
71 — Correction of normative references to EN 14511.
72 — Corrections of errors in the published edition.
73 — A new Annex N with a controls verification procedure (CVP) test to verify the compressor frequency
74 at part load condition D.
75 — A new Annex O for indoor unit airflow rate measurement, setting and verification for air-to-air units
76 with a rated capacity of ≤ 12 kW.
77 This document has been prepared under a standardization request addressed to CEN by the European
78 Commission. The Standing Committee of the EFTA States subsequently approves these requests for its
79 Member States.
80 For the relationship with EU Legislation, see informative Annexes ZA to ZF, which are an integral part of
81 EN 14825:2022.
82 Introduction
83 The incoming changes in the revised Regulation (EU) 206/2012 for testing air-to-air air-conditioners and
84 heat pumps introduce the airflow limitation to make sure thermal comfort is considered, and the controls
85 verification procedure (CVP) to certify the compliance of testing of units
...