oSIST prEN ISO 19659-1:2023
(Main)Railway applications - Heating, ventilation and air conditioning systems for rolling stock - Part 1: Terms and definitions (ISO 19659-1:2017)
Railway applications - Heating, ventilation and air conditioning systems for rolling stock - Part 1: Terms and definitions (ISO 19659-1:2017)
This document is applicable to rail vehicles and specifies the terms, definitions, symbols and abbreviated terms to be used in the ISO 19659 series, heating, ventilation and air conditioning for rolling stock.
Bahnanwendungen - Heizung, Lüftung und Klimatisierung von Schienenfahrzeugen - Teil 1: Begriffe und Definitionen (ISO 19659-1:2017)
Applications ferroviaires - Systèmes de chauffage, ventilation et climatisation pour le matériel roulant - Partie 1: Termes et définitions (ISO 19659-1:2017)
Železniške naprave - Ogrevalni, prezračevalni in klimatski sistemi za vozna sredstva - 1. del: Izrazi in definicije (ISO 19659-1:2017)
General Information
Standards Content (Sample)
SLOVENSKI STANDARD
oSIST prEN ISO 19659-1:2023
01-julij-2023
Železniške naprave - Ogrevalni, prezračevalni in klimatski sistemi za vozna
sredstva - 1. del: Izrazi in definicije (ISO 19659-1:2017)
Railway applications - Heating, ventilation and air conditioning systems for rolling stock -
Part 1: Terms and definitions (ISO 19659-1:2017)
Bahnanwendungen - Heizung, Lüftung und Klimatisierung von Schienenfahrzeugen -
Teil 1: Begriffe und Definitionen (ISO 19659-1:2017)
Applications ferroviaires - Systèmes de chauffage, ventilation et climatisation pour le
matériel roulant - Partie 1: Termes et définitions (ISO 19659-1:2017)
Ta slovenski standard je istoveten z: prEN ISO 19659-1
ICS:
01.040.45 Železniška tehnika (Slovarji) Railway engineering
(Vocabularies)
45.060.01 Železniška vozila na splošno Railway rolling stock in
general
oSIST prEN ISO 19659-1:2023 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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oSIST prEN ISO 19659-1:2023
INTERNATIONAL ISO
STANDARD 19659-1
First edition
2017-08
Railway applications — Heating,
ventilation and air conditioning
systems for rolling stock —
Part 1:
Terms and definitions
Applications ferroviaires — Systèmes de chauffage, ventilation et
climatisation pour le matériel roulant —
Partie 1: Termes et définitions
Reference number
ISO 19659-1:2017(E)
©
ISO 2017
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ISO 19659-1:2017(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2017, Published in Switzerland
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ISO 19659-1:2017(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Symbols and abbreviated terms .18
4.1 Symbols .18
4.2 Abbreviated terms .19
Bibliography .20
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oSIST prEN ISO 19659-1:2023
ISO 19659-1:2017(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out
through ISO technical committees. Each member body interested in a subject for which a technical
committee has been established has the right to be represented on that committee. International
organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.
ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www.iso.org/patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation on the voluntary nature of standards, the meaning of ISO specific terms and
expressions related to conformity assessment, as well as information about ISO's adherence to the
World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see the following
URL: www.iso.org/iso/foreword.html.
This document was prepared by Technical Committee ISO/TC 269, Railway applications, Subcommittee
SC 2, Rolling stock.
A list of all parts in the ISO 19659 series can be found on the ISO website.
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ISO 19659-1:2017(E)
Introduction
The ISO 19659 series defines terms, thermal comfort, energy efficiency and system installation of
heating, ventilation and air conditioning (HVAC) for rolling stock.
The purpose of this document is to standardize the terms, definitions, symbols and abbreviated terms
used throughout trains systems for the cooling, heating and internal air circulation that are commonly
known as heating, ventilation and air conditioning (HVAC). These can be broken down into multiples of
these functions and as an example, ventilation and air conditioning (VAC), etc.
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oSIST prEN ISO 19659-1:2023
INTERNATIONAL STANDARD ISO 19659-1:2017(E)
Railway applications — Heating, ventilation and air
conditioning systems for rolling stock —
Part 1:
Terms and definitions
1 Scope
This document is applicable to rail vehicles and specifies the terms, definitions, symbols and abbreviated
terms to be used in the ISO 19659 series, heating, ventilation and air conditioning for rolling stock.
2 Normative references
There are no normative references in this document.
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— IEC Electropedia: available at http://www.electropedia.org/
— ISO Online browsing platform: available at http://www.iso.org/obp
3.1 HVAC system
3.1.1 Function
3.1.1.1
cooling
process which enables the interior temperature to be lowered or maintained
3.1.1.2
pre-cooling
process which enables the interior temperature to be lowered (without the presence of passengers)
3.1.1.3
dehumidification
process which removes water vapour from air to reduce the absolute humidity
[SOURCE: ISO/TR 16344:2012, 2.1.32, modified — “relative humidity” has been changed to “absolute
humidity”.]
3.1.1.4
heating
process which enables the interior temperature to be raised or maintained
3.1.1.5
pre-heating
process which enables the interior temperature to be raised (without the presence of passengers)
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3.1.1.6
supplementary heating
additional heating (3.1.1.4) which provides support for the HVAC system
Note 1 to entry: This can also be referred to as “auxiliary heating”.
3.1.1.7
ventilation
movement of fresh (outside) air to and/or recirculating air in an enclosed space
3.1.1.8
natural air ventilation
air circulation generated without a mechanical action
3.1.1.9
forced air ventilation
air circulation generated by a mechanical action
3.1.1.10
emergency ventilation
ventilation (3.1.1.7) if main power source has failed
3.1.1.11
filtering
process which removes particles from the air
3.1.1.12
purifying
process which removes non-particulate contaminants from the air
Note 1 to entry: Odours and pathogens are examples of non-particulate contaminants from the air.
3.1.1.13
heat recovery
process which transfers heat (latent/sensible) between fresh air (3.4.1) and exhaust air (3.4.10)
3.1.2 Position
3.1.2.1
centralized system
system which consists of one set of HVAC unit (3.1.3.1) per car
3.1.2.2
decentralized system
system which consists of two or more sets of HVAC unit (3.1.3.1) per car
Note 1 to entry: This can also be referred to as “dispersed system”.
3.1.3 Equipment
3.1.3.1
HVAC unit
unit intended for cooling (3.1.1.1) and/or dehumidification (3.1.1.3) and/or heating (3.1.1.4), and/or
ventilation (3.1.1.7)
3.1.3.2
controller unit
unit which operates the HVAC system in a predetermined behaviour while exchanging data with
external devices
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3.1.3.3
cooling unit
system which provides cooling (3.1.1.1)
Note 1 to entry: See Figure 2 to Figure 5.
3.1.3.4
heating unit
system which provides heating (3.1.1.4)
Note 1 to entry: See Figure 2 to Figure 5.
3.1.3.5
supplementary heater
heater that carries out a heating (3.1.1.4) function in a decentralized manner either associated with
forced air ventilation (3.1.1.9) or not
Note 1 to entry: This can also be referred to as “auxiliary heater”.
Note 2 to entry: This can include floor heater, roof heater, body side heater, entrance heater, duct heater, etc.
Note 3 to entry: See Figure 5.
3.1.3.6
total heat exchanger
device using temperature and humidity difference to recover energy
3.1.3.7
ventilation unit
system ensuring ventilation (3.1.1.7)
Note 1 to entry: See Figure 3.
3.1.3.8
exhaust air fan
exhaust air unit
device or unit providing the extraction of air by mechanical action to the outside
Note 1 to entry: See Figure 4.
3.1.3.9
supplementary fan
device installed outside of HVAC unit (3.1.3.1) to move the air locally
Note 1 to entry: See Figure 3.
3.1.3.10
booster fan
supplementary fan (3.1.3.9) used to compensate (part of) the pressure drop inside air ducts
3.1.3.11
pressure protection device
device providing protection against undue vehicle interior tympanic pressure variations caused by
exterior pressure variations
3.1.3.12
pressure protection fan
device providing pressure protection while maintaining a certain degree of ventilation (3.1.1.7)
3.1.3.13
ducting
installations that guide air flows
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3.1.3.14
air diffuser
device for blowing the air in one or more directions while reducing the air velocity
3.1.3.15
air grille
device that provides physical protection, yet allows air to pass through
3.1.3.16
silencer
device to reduce air borne noise
3.1.4 Operation
3.1.4.1
automatic mode
automatic operating mode
operating mode of control in which the HVAC system operates in accordance with the programme data
until stopped by the programme or the operator
[SOURCE: ISO 13041-1:2004, 3.3.4, modified and adapted to HVAC system]
3.1.4.2
cooling mode
operating mode in which the HVAC unit (3.1.3.1) provides cooling (3.1.1.1)
3.1.4.3
forced cooling mode
mode which manually operates HVAC unit (3.1.3.1) cooling mode (3.1.4.2)
3.1.4.4
pre-cooling mode
mode which enables the interior temperature to be lowered (without the presence of passengers)
3.1.4.5
free cooling mode
operating mode in which the HVAC system provides cooling (3.1.1.1) by only introducing fresh air (3.4.1)
3.1.4.6
heating mode
operating mode in which the HVAC system provides heating (3.1.1.4)
3.1.4.7
heat pump mode
mode which can heat the interior by altering the heat emission and removal from the heat exchangers
(3.2.3.5) by changing the refrigerant (3.2.3.3) flow
3.1.4.8
forced heating mode
mode which manually operates HVAC unit (3.1.3.1) heating mode (3.1.4.6)
3.1.4.9
pre-heating mode
mode which enables the interior temperature to be raised (without the presence of passengers)
3.1.4.10
ventilation mode
mode which provides ventilation (3.1.1.7) only
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3.1.4.11
frost protection mode
mode to raise temperatures and avoid interior freezing
3.1.4.12
degraded mode
operation of the HVAC system with defined limitations in performance
3.1.4.13
power save mode
mode which actively reduces its power consumption by allowing parameters to change
Note 1 to entry: Set point and fresh air (3.4.1) are examples of parameters.
3.1.4.14
standby mode
mode under which a predetermined interior temperature range is maintained during non-operational
activity of the vehicle
3.1.4.15
emergency mode
mode which provides reduced ventilation (3.1.1.7), heating (3.1.1.4) and/or cooling (3.1.1.1) if the main
power source has failed
3.1.4.16
maintenance mode
mode used for the purpose of maintenance activities which calls up automatic predefined testing
3.1.4.17
test mode
mode used for the purpose of test activities which calls up a specified routine or requires some specific
testing during maintenance
3.1.4.18
washing mode
mode for external cleaning of train
3.1.5 Performance
3.1.5.1
cooling capacity
enthalpy reduction between the fresh air (3.4.1) and/or return air (3.4.11) on one hand and primary air
(3.4.4) on the other hand in a defined interval of time
3.1.5.2
pre-cooling time
time needed for lowering the interior temperature to pre-cooling (3.1.1.2) set point
3.1.5.3
heating capacity
enthalpy elevation between the fresh air (3.4.1) and/or return air (3.4.11) on one hand and primary air
(3.4.4) on the other hand which can be supported by the supplementary heater (3.1.3.5) in a defined
interval of time
3.1.5.4
pre-heating time
time needed for increasing the interior temperature to pre-heating (3.1.1.5) set point
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3.1.5.5
design conditions
specified exterior/interior boundary conditions under which the thermal comfort (3.7.1) parameters
need to be achieved
3.1.5.6
rated conditions
set of operating conditions specified in a contractual/technical specification
3.1.5.7
standard rating conditions
mandatory condition that is used for marking and for comparison or certification purposes
[SOURCE: ISO 13612-2:2014, 3.40]
3.1.5.8
extreme conditions
specified exterior/interior boundary conditions beyond the design conditions (3.1.5.5) under which the
functionality of the HVAC system installation is maintained but thermal comfort (3.7.1) parameters do
not need to be achieved
3.1.5.9
volume flow
volumetric air flow rate which passes per unit time
3.1.5.10
water tightness
ability of the closed test specimen to resist water penetration
[SOURCE: ISO 15821:2007, 3.6]
3.2 HVAC unit
3.2.1 Type
3.2.1.1
compact HVAC unit
unit where all refrigerant (3.2.3.3) components are installed in the same location
Note 1 to entry: This can also be referred to as “packaged” or “self-contained”.
3.2.1.2
split HVAC unit
unit where refrigerant (3.2.3.3) components are installed in different locations
3.2.2 Location
3.2.2.1
roof mounted
mounted on the roof
Note 1 to entry: See Figure 1 a).
3.2.2.2
roof embedded
installed in the roof
Note 1 to entry: See Figure 1 b).
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3.2.2.3
ceiling mounted
installed between the ceiling and the roof
Note 1 to entry: See Figure 1 c).
3.2.2.4
on floor mounted
mounted on the floor
Note 1 to entry: See Figure 1 d).
3.2.2.5
under floor mounted
installed within the underframe
Note 1 to entry: See Figure 1 e).
a) roof mounted (3.2.2.1)
b) roof embedded (3.2.2.2)
c) ceiling mounted (3.2.2.3)
d) on floor mounted (3.2.2.4)
e) underfloor mounted (3.2.2.5)
Figure 1 — Diagram explaining the HVAC unit location
3.2.3 Components and parameters
3.2.3.1
air handling unit
group of components designed to move, filter and/or mix, heat and/or cool the air
Note 1 to entry: See Figure 2 to Figure 5.
3.2.3.2
compressor condenser unit
part of the HVAC unit (3.1.3.1) where heat is dissipated
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3.2.3.3
refrigerant
fluid used for heat transfer in a refrigerating circuit
[SOURCE: ISO 817:2014, 3.1.35, modified — “ system” has been replaced by “circuit”.]
3.
...
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