SIST EN 1434-4:2016/oprA1:2017

Heat meters - Part 4: Pattern approval tests

This European Standard specifies pattern approval tests and applies to heat meters. Heat meters are instruments intended for measuring the energy which in a heat-exchange circuit is absorbed (cooling) or given up (heating) by a liquid called the heat-conveying liquid. The heat meter indicates the quantity of heat in legal units.
Electrical safety requirements are not covered by this European Standard.
Pressure safety requirements are not covered by this European Standard.
Surface mounted temperature sensors are not covered by this European Standard.
This standard covers meters for closed systems only, where the differential pressure over the thermal load is limited.

Wärmezähler - Teil 4: Prüfungen für die Bauartzulassung

Diese Europäische Norm legt Prüfungen für die Bauartzulassungen für Wärmezähler fest. Wärmezähler sind Geräte, die dazu dienen, die Energiemenge zu messen, die in einem Wärmetauscherkreislauf durch eine als Wärmeträgerflüssigkeit bezeichnete Flüssigkeit aufgenommen (Kühlen) oder abgegeben (Heizen) wird. Der Wärmezähler zeigt die Wärmemenge in gesetzlichen Einheiten an.
Elektrische Sicherheitsanforderungen werden in dieser Europäischen Norm nicht behandelt.
Den Druck betreffende Sicherheitsanforderungen werden in dieser Europäischen Norm nicht behandelt.
Oberflächenmontierte Temperaturfühler werden in dieser Europäischen Norm nicht behandelt.
Die vorliegende Norm behandelt ausschließlich Zähler für geschlossene Systeme, in denen der Differenzdruck am Wärmeübertrager begrenzt ist.

Compteurs d'énergie thermique - Partie 4 : Essais en vue de l'approbation de modèle

La présente Norme européenne spécifie les essais en vue de l'approbation de modèle pour les compteurs d'énergie thermique. Les compteurs d'énergie thermique sont des instruments destinés à mesurer l'énergie thermique qui, dans un circuit d'échange thermique, est absorbée (refroidissement) ou cédée (chauffage) par un liquide appelé « liquide caloporteur ». Le compteur d'énergie thermique fournit la quantité d'énergie thermique en unités de mesure légales.
La présente Norme européenne ne traite pas des prescriptions de sécurité électrique.
La présente Norme européenne ne traite pas des prescriptions de sécurité relative à la pression.
La présente Norme européenne ne traite pas des sondes de température montées en surface.
La présente norme couvre les compteurs pour les systèmes fermés uniquement, où la pression différentielle dans la charge thermique est limitée.

Merilniki toplote - 4. del: Preskusi za odobritev tipa - Dopolnilo A1

General Information

• Status: Not Published
• Public Enquiry End Date: 02-Jan-2018
• ICS: 17.200.10 - Heat. Calorimetry
• Technical Committee: OGS - Heating for buildings
• Current Stage: 98 - Abandoned project (Adopted Project)
• Start Date: 10-Jan-2019
• Due Date: 15-Jan-2019
• Completion Date: 10-Jan-2019
• Directive: 2004/22/EC - Directive 2004/22/EC of the European Parliament and of the Council of 31 March 2004 on measuring instruments
• Directive: 2014/32/EU - Directive 2014/32/EU of the European Parliament and of the Council of 26 February 2014 on the harmonisation of the laws of the Member States relating to the making available on the market of measuring instruments
• Mandate: M/374 - Mandate to CEN and CENELEC for standards in the field of measuring instruments
• Mandate: M/441 - Standardisation mandate to CEN, CENELEC and ETSI in the field of measuring instruments for the development of an open architecture for utility meters involving communication protocols enabling interoperability
• Mandate: M/541 - [C(2015)8558] Standardization request in support of the implementation of Directive 2014/32/EU on measuring instruments
• Ref Project: EN 1434-4:2015/prA1 - Heat meters - Part 4: Pattern approval tests

Relations

• Consolidated By: SIST EN 1434-4:2016+A1:2019 - Thermal energy meters - Part 4: Pattern approval tests
• Effective Date: 01-Mar-2019
• Revised: SIST EN 1434-4:2016 - Heat meters - Part 4: Pattern approval tests
• Effective Date: 01-Dec-2017

Overview

SIST EN 1434-4:2016/oprA1:2017, titled Thermal Energy Meters – Part 4: Pattern Approval Tests, is a European Standard developed by CEN (European Committee for Standardization). This standard specifies the test procedures for pattern approval of thermal energy meters. Thermal energy meters are devices designed to measure the amount of energy absorbed or released by a heat-exchange circuit, where the energy is transferred via a heat-conveying liquid. The measurements are expressed in legal energy units, critical for billing and energy management in closed heating and cooling systems.

Importantly, this standard applies only to closed systems with limited differential pressure over the thermal load. It excludes electrical and pressure safety requirements as well as surface-mounted temperature sensors, focusing solely on the core functionality and accuracy of the thermal energy meters.

Key Topics

• Pattern Approval Tests
  SIST EN 1434-4:2016/oprA1:2017 defines detailed testing procedures to verify that thermal energy meters comply with accuracy, reliability, and performance criteria before being approved for use.

• Scope of Application
  The standard applies exclusively to thermal energy meters for closed-loop systems where the differential pressure is controlled. It differentiates thermal energy meters from other measuring instruments by focusing on energy measurement related to liquid-based heat exchange.

• Terminology Updates
  The amendment replaces terms such as "heat meter" and "heating/cooling meter" with the unified term "thermal energy meter" to standardize nomenclature across the document.

• Test Methodology Changes
  Updates to subclauses involve adjustments to references such as ISO standards for pressure loss and flow disturbances, as well as additional tests and cyclic damp heat resistance assessments for bifunctional thermal energy meters.

• Compliance and Regulations
  The standard aligns with Directive 2014/32/EU (MID) on measuring instruments, providing a voluntary means for manufacturers to demonstrate conformity with EU legal requirements. Annex ZA within the document elaborates on the relationship to the directive and clarifies the essential requirements covered.

Applications

EN 1434-4 is applied in the following contexts:

• Energy Billing and Certification
  Thermal energy meters conforming to this standard are used by utility companies and energy service providers to ensure accurate and legally compliant measurement of heating and cooling energy consumption.

• Energy Management Systems
  Facilities that implement energy efficiency measures rely on these meters for precise data in closed loop heating/cooling circuits, enabling monitoring, verification, and optimization of energy use.

• Meter Manufacturing and Quality Assurance
  Manufacturers use pattern approval tests to validate new thermal energy meter designs prior to market release, ensuring compliance with European legal metrology standards and facilitating market acceptance.

• Regulatory and Legal Metrology
  Pattern approval under this standard supports national and European regulatory authorities in controlling measurement instruments used in trade and consumer protection.

Related Standards

• EN 1434-1 to EN 1434-3 and EN 1434-5
  These parts cover general requirements, construction, testing, installation, and performance evaluation for thermal energy meters. EN 1434-4 complements these by focusing on pattern approval.

• EN ISO 4064-2
  Referenced within EN 1434-4 for pressure loss and flow disturbances, this standard relates to water meters and is adapted for thermal energy meter testing.

• CEN/TR 16911
  Updated to FprCEN/TR 16911 in the amendment, this technical report provides additional testing guidelines referenced in EN 1434-4.

• Directive 2014/32/EU (MID)
  The Measuring Instruments Directive sets the essential legal requirements for measuring instruments traded in the European Union. EN 1434-4 facilitates compliance for thermal energy meter manufacturers.

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By adhering to SIST EN 1434-4:2016/oprA1:2017, stakeholders gain assurance on the quality, accuracy, and regulatory compliance of thermal energy meters, supporting effective energy monitoring and fair trade practices within the EU and EFTA member states. This standard is a cornerstone for manufacturers, regulators, and energy providers in the thermal energy sector.

Standards Content (Sample)

SLOVENSKI STANDARD
01-december-2017
Toplotni števci - 4. del: Preskusi za odobritev tipa
Heat meters - Part 4: Pattern approval tests
Wärmezähler - Teil 4: Prüfungen für die Bauartzulassung
Compteurs d'énergie thermique - Partie 4 : Essais en vue de l'approbation de modèle
Ta slovenski standard je istoveten z: EN 1434-4:2015/prA1
ICS:
17.200.10 Toplota. Kalorimetrija Heat. Calorimetry
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

DRAFT
EUROPEAN STANDARD
EN 1434-4:2015
NORME EUROPÉENNE
EUROPÄISCHE NORM
prA1
October 2017
ICS 17.200.10
English Version
Thermal energy meters - Part 4: Pattern approval tests
Compteurs d'énergie thermique - Partie 4 : Essais en Wärmezähler - Teil 4: Prüfungen für die
vue de l'approbation de modèle Bauartzulassung
This draft amendment is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee CEN/TC 176.

This draft amendment A1, if approved, will modify the European Standard EN 1434-4:2015. 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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey 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: Avenue Marnix 17, B-1000 Brussels
© 2017 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 1434-4:2015/prA1:2017 E
worldwide for CEN national Members.

Contents Page
European foreword . 3
1 Modification to the English title . 4
2 Modifications overall the document . 4
3 Modification to subclause 7.19, “Pressure loss” . 4
4 Modification to subclause 7.22, “Flow disturbances” . 4
5 Modification to subclause 7.8.2.3, “Additional test” . 4
6 Modification to 7.9.1, “Damp heat cyclic” . 4
7 Modification to Annex ZA . 4
Annex Z
...