SIST EN 1434-5:2016/oprA1:2017

Heat meters - Part 5: Initial verification tests

This European Standard specifies initial verification 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 5: Tests für Konformitätsuntersuchungen und Eichungen

Diese Europäische Norm legt die Ersteichung fest und gilt für Wärmezähler. 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 Differenz-druck am Wärmeübertrager begrenzt ist.

Compteurs d'énergie thermique - Partie 5 : Essais de vérification initiaux

La présente Norme européenne spécifie les essais de vérification primitive 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 - 5. del: Preskusi prve overitve - 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: 12-Mar-2019
• Due Date: 17-Mar-2019
• Completion Date: 12-Mar-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 1434-5:2015/prA1 - Thermal energy meters - Part 5: Intitial verification tests

Relations

• Consolidated By: SIST EN 1434-5:2016+A1:2019 - Thermal energy meters - Part 5: Initial verification tests
• Effective Date: 01-Apr-2019
• Revised: SIST EN 1434-5:2016 - Heat meters - Part 5: Initial verification tests
• Effective Date: 01-Dec-2017

Overview

SIST EN 1434-5:2016/oprA1:2017 is a key European standard developed by CEN that specifies the initial verification tests for thermal energy meters. These meters, also known as heat meters, are designed to measure the energy absorbed (cooling) or released (heating) by a heat-conveying liquid in closed-loop heat-exchange circuits. The standard ensures reliable and accurate measurement of thermal energy in legal units, supporting energy management, billing, and regulatory compliance across industries.

This standard specifically addresses meters operating in closed systems where the differential pressure over the thermal load is limited. It excludes electrical and pressure safety requirements as well as surface-mounted temperature sensors, focusing instead on the core performance verification processes essential during meter initial commissioning or after maintenance.

Key Topics

• Initial Verification Tests: The standard defines comprehensive testing procedures to validate the performance and conformity of thermal energy meters before their deployment.
• Scope of Application: Covers thermal energy meters used exclusively in closed-loop heat-exchange circuits with regulated pressure conditions.
• Terminology Alignment: The amendment clarifies the use of “thermal energy meter” replacing “heat meter” to align with modern terminology.
• Regulatory Compliance: Supports conformity with essential requirements of the EU Directive 2014/32/EU related to measuring instruments (MID).
• Exclusions: Does not cover electrical or pressure safety, nor surface-mounted temperature sensors.
• Standard Updates: Amendment prA1 modifies the original EN 1434-5:2015, including updates to the title, terminology, and Annex ZA relating to EU directives.

Applications

Thermal energy meters complying with SIST EN 1434-5:2016/oprA1:2017 are widely used in various sectors where energy efficiency and accurate measurement of heat transfer are critical:

• District Heating and Cooling Networks: Accurate measurement of energy used by buildings and industries to optimize consumption.
• HVAC Systems: Monitoring and billing of thermal energy in commercial and residential heating or cooling applications.
• Industrial Processes: Energy accounting in manufacturing and process industries where precise heat measurement impacts cost control.
• Energy Management Systems: Providing reliable data for energy audits, sustainability reporting, and compliance with environmental standards.
• Utilities and Energy Providers: Ensuring legal metrology requirements for thermal energy measurement and pricing.

Related Standards

• EN 1434-1 to EN 1434-4: Cover overall system requirements, construction, performance, and installation of thermal energy meters.
• Directive 2014/32/EU (MID): Establishes the essential metrology requirements harmonized across EU member states that EN 1434-5 helps fulfill.
• CEN/TC 176 Standards: Other norms developed by the same technical committee focusing on heat metering technology.
• National Standards: SIST EN 1434-5:2016/oprA1:2017 is adopted by CEN members, ensuring harmonized measurement practices throughout Europe.

---

SIST EN 1434-5:2016/oprA1:2017 plays a critical role in the harmonization and standardization of thermal energy meter verification. By defining rigorous initial testing procedures, it guarantees that heat metering devices deliver accurate and legally compliant readings essential for energy billing, management, and regulatory requirements. Organizations involved in design, testing, procurement, installation, or maintenance of heat meters can rely on this standard to ensure quality and measurement integrity in closed heating and cooling systems.

Standards Content (Sample)

SLOVENSKI STANDARD
01-december-2017
Toplotni števci - 5. del: Preskusi prve overitve
Heat meters - Part 5: Initial verification tests
Wärmezähler - Teil 5: Tests für Konformitätsuntersuchungen und Eichungen
Compteurs d'énergie thermique - Partie 5 : Essais de vérification initiaux
Ta slovenski standard je istoveten z: EN 1434-5:2015/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 1434-5:2015
NORME EUROPÉENNE
EUROPÄISCHE NORM
prA1
October 2017
ICS 17.200.10
English Version
Thermal energy meters - Part 5: Intitial verification tests
Compteurs d'énergie thermique - Partie 5 : Essais de Wärmezähler - Teil 5: Tests für
vérification initiaux Konformitätsuntersuchungen und Eichungen
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 1434-5:2015. 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 1434-5:2015/prA1:2017 E
worldwide for CEN national Members.

Contents Page
European foreword . 3
1 Modification to the English, French and German titles . 4
2 Modifications overall the document . 4
3 Modification to Annex ZA . 4
Annex
...