EN 14597:2005
(Main)Temperature control devices and temperature limiters for heat generating systems
Temperature control devices and temperature limiters for heat generating systems
This European Standard applies to electrical or non electrical temperature control devices which are used to control temperatures within heat generating systems by controlling the supply of energy; it also applies to limiting devices which ensure that the temperature in heat generating systems will not exceed a predefined limit.
This European Standard requires operating values, operating times, and operational sequences associated with the safety of the heat generating system.
This European Standard also applies to controls using NTCs or PTCs thermistors, additional requirements for which are contained in Annex J of EN 60730-2-9.
This European Standard applies to controls with a rated voltage not exceeding 690 V and with a rated current not exceeding 63 A.
This European Standard also applies to manual controls if, electrically and/or mechanically, they form an integral part of automatic controls.
NOTE Requirements for manually operated switches not forming part of an automatic control are contained in EN 61058 1.
This European Standard does not apply to room thermostats.
1.2 This European Standard does not take into account the response value of an automatic action of the control, if such a response value is dependent upon the method of mounting the control in the heat generating system or equipment, in which case the control should be tested together with the heat generator. Where a response value is of significance for the protection of the user, or surroundings, the value defined in the appropriate household equipment standard or as determined by the manufacturer applies.
1.3 This European Standard applies also to controls incorporating electronic devices, requirements for which are contained in Annex DX.
Temperaturregeleinrichtungen und Temperaturbegrenzer für wärmeerzeugende Anlagen
Diese Norm bezieht sich auf EN 60730 2 9 und ändert und ersetzt Anforderungen der Norm, wie für die Zwecke der vorliegenden Norm angemessen. Falls nicht anders angegeben, beziehen sich alle Verweisungen auf Abschnitte in EN 60730 2 9, die zusammen mit EN 60730 1 angewendet wird.
1.1 bis 1.4 von EN 60730 2 9: Ersetzen:
1.1 Diese Norm gilt für elektrische oder nichtelektrische Temperatursteuer und regeleinrichtungen, die zur Steuerung und Regelung der Temperatur in wärmeerzeugenden Anlagen verwendet werden, indem sie die Energiezufuhr regeln und steuern, sowie für Begrenzungseinrichtungen, die sicherstellen, dass die Temperatur in den wärmeerzeugenden Anlagen einen zuvor festgelegten Wert nicht überschreitet.
Dispositifs du régulation et de limitation de température pour les systèmes générateurs de chaleur
Nadzorne naprave za temperaturo in temperaturne omejitve za sisteme za gretje prostora
General Information
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Standards Content (Sample)
SLOVENSKI STANDARD
01-marec-2006
Nadzorne naprave za temperaturo in temperaturne omejitve za sisteme za gretje
prostora
Temperature control devices and temperature limiters for heat generating systems
Temperaturregeleinrichtungen und Temperaturbegrenzer für wärmeerzeugende Anlagen
Dispositifs du régulation et de limitation de température pour les systemes générateurs
de chaleur
Ta slovenski standard je istoveten z: EN 14597:2005
ICS:
91.140.10 Sistemi centralnega Central heating systems
ogrevanja
97.120 Avtomatske krmilne naprave Automatic controls for
za dom household use
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EUROPEAN STANDARD
EN 14597
NORME EUROPÉENNE
EUROPÄISCHE NORM
September 2005
ICS 17.200.20; 97.120
English Version
Temperature control devices and temperature limiters for heat
generating systems
Dispositifs du réglage et de limitation de température pour Temperaturregeleinrichtungen und Temperaturbegrenzer
systèmes de la production de chaleur (chauffage central) für wärmeerzeugende Anlagen
This European Standard was approved by CEN on 1 August 2005.
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 Central Secretariat 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 Central Secretariat has the same status as the official
versions.
CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,
Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia,
Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36 B-1050 Brussels
© 2005 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 14597:2005: E
worldwide for CEN national Members.
Contents Page
Foreword .3
Introduction.4
1 Scope .8
2 Normative references .8
3 Terms and definitions.9
4 General requirements and general notes on tests .11
5 Rating.11
6 Classification.12
7 Information .12
8 Protection against electric shock .12
9 Provision for protective earthing.12
10 Terminals and terminations .12
11 Constructional requirements .13
12 Moisture and dust resistance.14
13 Electric strength and insulation resistance .14
14 Heating.14
15 Manufacturing deviation and drift.15
16 Environmental stress resulting from transport and storage .16
17 Endurance .16
18 Mechanical strength .16
19 Threaded parts and connections.16
20 Creepage distances, clearances and distances through insulation .16
21 Resistance to heat, fire, and tracking.16
22 Resistance to corrosion .16
23 Electromagnetic Compatibility (EMC) requirements — Emission.16
24 Components .17
25 Normal operation .17
26 Electromagnetic compatibility (EMC) requirements — Immunity .17
27 Abnormal operation.17
28 Guidance on the use of electronic disconnection.17
Annex A X (normative) Actions required .20
Annex B X (normative) Information.23
Annex C X (normative) Maximum permissible time factor values .30
Annex D X (normative) Actuator devices with safety functions in heat generating systems.31
Bibliography.33
Foreword
This European Standard (EN 14597:2005) has been prepared by Technical Committee CEN/TC 247 “Building
automation, control and building management”, the secretariat of which is held by SNV.
This European Standard shall be given the status of a national standard, either by publication of an identical
text or by endorsement, at the latest by March 2006, and conflicting national standards shall be withdrawn at
the latest by March 2006.
According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following
countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic,
Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland
and United Kingdom.
Introduction
This European Standard specifies the functional requirements and tests of control devices which result from
the application in thermal installations. These are e.g. time response and safety aspects of those devices
which enable the safe operation of the installation.
A distinction is made between special requirements for the different operating media air, water, oil and flue
gas.
This European Standard includes purely mechanical constructions, electrical and electronic constructions, and
constructions using software.
There exist "standard applications" for which in the past "typical" devices or combinations thereof have been
used. Some of these devices may also be of purely mechanical construction. Such "standard devices” are
described in this document and identified by letter codes. Their properties and functions are described in
definitions using the language and definitions of the EN 60730 series, so to make sure that existing devices
(using the same letter codes) are not incompatible when tested using this document.
This European Standard has been worked out by a Joint Working Group of CLC/TC 72 and CEN/TC 247,
based on a draft document from CEN/TC 247, following the agreement between these Committees laid down
in CLC(SG)524A:Jan 1996. In line with this, this European Standard uses fully and refers in all aspects of
construction and safety of the devices to EN 60730-2-9, “Automatic electrical controls for household and
similar applications - Part 2: Particular requirements for temperature sensing controls”, and, where needed,
other Parts 2 of the EN 60730 series. It has been found that purely mechanical devices can be
accommodated in this approach without any problem.
The devices described in this European Standard contain the sensors, the control units and the positioning
outputs and, if needed, the actuator devices. The requirements for mechanical safety, electrical safety and
EMC are covered by the standards of the EN 60730 series under the LVD and EMC Directives.
To make sure that when translating this document into other languages no unintentional meaning is attached
to words or words are used as in former practice, the different devices are identified and defined by device
codes consisting of up to four letters. It is strongly recommended that no other meaning than given by the
definitions of this document and of the EN 60730 series is attached to the letter codes.
Care has been taken to rewrite the definitions of the first draft from CEN/TC 247 by using the language of the
EN 60730 series definitions and in such a way that the whole technical content has been retained and no loss
occurred. This ensures that the devices using the device codes from this document will be compatible with
those of the same device code used in the past.
This European Standard has been created for temperature sensing controls for use in heat generating
systems; still it may be useful to quote it for other applications also, either wholly or in part.
Remarks to product committees specifying devices within the scope of this European Standard to
ensure safety of the controlled applications within the scope of their standards:
The attention of product committees specifying devices from this European Standard to cover technical risks
of the operation of applications within the scope of their standards is drawn to the fact that just specifying a
general type of device (e.g. thermal cut-out) according to this document for a specific application does in
general not ensure the safety of the controlled application and may be recipe for disaster. The use of a control
itself does not provide safety, but only if the control is suitable to be used with that application.
It is necessary to assess the risk situation of the controlled application by accepted engineering procedures
(risk and/or fault analysis, FMEA, or other) and to select from the devices with different device codes given in
this document the device(s) that adequately limit the risk to acceptable levels by controlling or preventing
failures and errors possibly occurring during operation of the application.
In order to limit risk in the controlled applications, controls as specified in Annex AX of this document shall be
used. For control purposes operating controls, and for risk limiting protective controls shall be used. If a
protective control provides also operating control functions, any failure of the operating function or part of the
control should not prevent the protective operation of the control.
This European Standard covers safety related aspects pertaining to the operation and inherent safety of
operating and protective controls for heat generating systems.
This European Standard does not limit construction to single function devices in that multifunctional devices
which could be classified for different functions are allowed within specified conditions. In this way the use of
devices using electronics or software is possible.
In this European Standard the term "heat generating system" may also mean "heat exchanger".
In this European Standard the term "heat generating system" comprises all equipment incorporated in such a
system, for which other standards will normally apply as well. Examples are:
Table 1 — List of standards (non-exhaustive) for equipment using temperature control devices within
the scope of this document
Standard number Title (short version) CEN/TC Remarks
EN 26 Gas-fired instantaneous water heaters for TC 48
sanitary uses production, fitted with
Domestic gas-fired water
atmospheric burners
heaters
EN 89 Gas-fired storage water heaters for the TC 48
production of domestic hot water
EN 30 Domestic cooking appliances burning gas fuel TC 49 Gas cooking appliances
EN 303 Heating boilers with forced draught burners TC 57 Heating boilers
EN 613 Independent gas-fired convection heaters TC 62
Independent gas-fired space
EN 1266 Independent gas-fired convection heaters TC 62
heaters
incorporating a fan to assist transportation of
combustion air and
...
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