EN 14750:2024

Railway applications - Air conditioning for urban, suburban and regional rolling stock: Comfort parameters and type tests

This document establishes thermal comfort parameters for areas accessible to passengers and staff on railway vehicles.
This document also specifies conditions, performance values and the comfort parameter validation methods.
This document is applicable to urban (metro, tramway), suburban and/or regional vehicles equipped with cooling and/or heating/ventilation systems. This document does not apply to main line vehicles and driver’s cabs which are considered in separate Standards.

Bahnanwendungen - Luftbehandlung in Schienenfahrzeugen des städtischen-, Vorort- und Regionalverkehrs - Behaglichkeitsparameter und Typprüfungen

Dieses Dokument legt thermische Behaglichkeitsparameter für Bereiche fest, die für Fahrgäste und Personal in Schienenfahrzeugen zugänglich sind.
Dieses Dokument legt zudem Bedingungen, Leistungswerte und Verfahren zur Validierung von Behaglichkeitsparametern fest.
Dieses Dokument ist anwendbar für Fahrzeuge städtischer Schienenbahnen (U-Bahnen, Straßenbahnen), Vorort- und/oder Regionalbahnen, die mit einer Kühlanlage und/oder Heizungs-/Lüftungsanlage ausgerüstet sind. Dieses Dokument ist nicht anwendbar für Vollbahnen und Führerräume, die Gegenstand gesonderter Normen sind.

Applications ferroviaires - Conditionnement de l'air pour matériel roulant urbain, de banlieue et régional : Paramètres de confort et essais de type

Le présent document établit les paramètres de confort thermique pour les zones des véhicules ferroviaires, accessibles aux voyageurs et au personnel de bord.
Le présent document précise également les conditions, les valeurs de performance et les méthodes de validation des paramètres de confort.
Le présent document est applicable aux véhicules urbains (métro, tramway), de banlieue et/ou régionaux équipés de systèmes de réfrigération et/ou de chauffage/ventilation. Le présent document ne s'applique pas aux véhicules de grandes lignes et les cabines de conduite qui font l'objet de normes spécifiques.

Železniške naprave - Klimatske naprave v železniških vozilih za mestni, primestni in regionalni promet - Parametri za določanje udobja in preskusi tipa

General Information

• Status: Published
• Publication Date: 17-Dec-2024
• ICS: 13.040.20 - Ambient atmospheres
• ICS: 45.140 - Metro, tram and light rail equipment
• Technical Committee: CEN/TC 256 - Railway applications
• Drafting Committee: CEN/TC 256/WG 8 - Air conditionning, Heating and Ventilation
• Current Stage: 6060 - Definitive text made available (DAV) - Publishing
• Start Date: 18-Dec-2024
• Due Date: 18-Dec-2024
• Completion Date: 18-Dec-2024
• Directive: 2008/57/EC - Directive 2008/57/EC of the European Parliament and of the Council of 17 June 2008 on the interoperability of the rail system within the Community (Recast)
• Directive: 2016/797/EU - Directive (EU) 2016/797 of the European Parliament and of the Council of 11 May 2016 on the interoperability of the rail system within the European Union (Text with EEA relevance)
• Mandate: M/486 - Mandate for programming and standardisation addressed to the European standardisation bodies in the field of urban rail
• Ref Project: SIST EN 14750:2025 - Railway applications - Air conditioning for urban, suburban and regional rolling stock : Comfort parameters and type tests

Relations

• Replaces: EN 14750-2:2006 - Railway applications - Air conditioning for urban and suburban rolling stock - Part 2: Type tests
• Effective Date: 19-Jan-2023
• Replaces: EN 14750-1:2006 - Railway applications - Air conditioning for urban and suburban rolling stock - Part 1: Comfort parameters
• Effective Date: 19-Jan-2023

Standards Content (Sample)

SLOVENSKI STANDARD
01-marec-2025
Železniške naprave - Klimatske naprave v železniških vozilih za mestni, primestni
in regionalni promet - Parametri za določanje udobja in preskusi tipa
Railway applications - Air conditioning for urban, suburban and regional rolling stock :
Comfort parameters and type tests
Bahnanwendungen - Luftbehandlung in Schienenfahrzeugen des städtischen-, Vorort-
und Regionalverkehrs - Behaglichkeitsparameter und Typprüfungen
Applications ferroviaires - Conditionnement de l'air pour matériel roulant urbain, de
banlieue et régional : Paramètres de confort et essais de type
Ta slovenski standard je istoveten z: EN 14750:2024
ICS:
23.120 Zračniki. Vetrniki. Klimatske Ventilators. Fans. Air-
naprave conditioners
45.060.01 Železniška vozila na splošno Railway rolling stock in
general
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN 14750
EUROPEAN STANDARD
NORME EUROPÉENNE
December 2024
EUROPÄISCHE NORM
ICS 13.040.20; 45.140 Supersedes EN 14750-1:2006, EN 14750-2:2006
English Version
Railway applications - Air conditioning for urban,
suburban and regional rolling stock: Comfort parameters
and type tests
Applications ferroviaires - Conditionnement de l'air Bahnanwendungen - Luftbehandlung in
pour matériel roulant urbain, de banlieue et régional : Schienenfahrzeugen des städtischen-, Vorort- und
Paramètres de confort et essais de type Regionalverkehrs - Behaglichkeitsparameter und
Typprüfungen
This European Standard was approved by CEN on 27 October 2024.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this
European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references
concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN
member.
This European Standard exists 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.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2024 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 14750:2024 E
worldwide for CEN national Members.

Contents Page
European foreword . 5
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 6
4 Parameter selection . 13
5 Vehicle categories . 13
6 Comfort parameters . 15
7 Exterior conditions. 16
7.1 Generalities . 16
7.2 Mean exterior temperature range with comfort criteria . 16
7.3 Mean exterior temperature range with functional criteria . 17
8 Performance of the heating and cooling installations . 17
8.1 Design passenger load . 17
8.2 Heating . 17
8.3 Pre-heating . 17
8.4 Cooling . 18
8.5 Pre-cooling . 18
8.6 Stand by operation . 18
9 Control . 19
9.1 General. 19
9.2 Interior temperature setpoint (T ) . 19
ic
9.3 Interior temperature setpoint (T ) for vehicles without cooling . 19
ic
10 Comfort condition requirements . 19
10.1 Requirements for comfort zone. 19
10.2 Requirements for local annexes (T ) . 29
Loc
10.3 Air quantities and quality . 30
11 Complementary requirements . 30
11.1 Heat transfer coefficient (k) . 30
11.2 Condensation . 31
11.3 Solar factor (g) of the windows . 31
11.4 Sealing against water and snow . 31
12 Validation . 31
12.1 General. 31
12.2 Test levels . 31
12.3 Selection of tested vehicles . 32
12.4 Assessment of comfort criteria based on simulation . 32
13 Preliminary verifications . 34
14 Air movement tests . 34
14.1 General remarks . 34
14.2 Air flow rates . 34
14.3 Visualization of the air flow direction . 34
14.4 Air speed test . 35
15 Climatic tests . 35
15.1 General remarks . 35
15.2 Pre-heating test . 36
15.3 Pre-cooling test. 36
15.4 Regulation test . 36
15.5 Steady-state tests . 37
15.6 Tests at extreme exterior operating conditions . 38
15.7 Complementary tests . 38
16 Methods of measurement − Measuring instruments . 41
16.1 General remarks . 41
16.2 Temperatures . 41
16.3 Relative humidity . 41
16.4 Air speed . 42
16.5 Air flow rate . 42
16.6 Simulated speed of the vehicle . 42
16.7 Equivalent solar energy . 42
16.8 Energy consumption and power rating . 42
17 Characteristics of the test equipment . 42
17.1 General remarks . 42
17.2 Occupation . 42
17.3 Temperature and uniformity of the climatic chamber and climatic wind tunnel . 43
17.4 Relative exterior humidity . 43
17.5 Simulation of exterior air speed . 43
17.6 Equivalent solar energy . 43
18 Distribution of measuring points . 46
18.1 General . 46
18.2 Comfort envelope temperature measuring points . 46
Annex A (normative) Form for parameters selection . 47
Annex B (normative) Regulation curves for the interior temperature setpoint . 51
Annex C (normative) Acceptable air speed . 53
Annex D (normative) Maximum Relative interior humidity in the comfort envelope . 55
Annex E (normative) Heat emitted by a person. 57
Annex F (normative) Exterior conditions for climatic zones . 60
Annex G (normative) Fresh air flow . 62
Annex H (normative) Test programme for TL1 . 64
Annex I (normative) Test programme for TL2 and TL3 . 66
Annex J (normative) Equivalent solar energy (Simulation of solar exposure) . 75
Annex K (normative) Location of the measuring points used for the determination of the
mean interior temperature in the comfort envelope (T ), h
...