prEN 17691-1
(Main)Components for BAC control loops - Valve and actuator assemblies - Part 1: Water-based HVAC applications
Components for BAC control loops - Valve and actuator assemblies - Part 1: Water-based HVAC applications
This document specifies requirements and test methods of valve-actuator assemblies in individual zone control of water-based HVAC applications.
Control valves of nominal diameter larger than DN50 are currently not covered by this document.
Within the scope are pressure independent and pressure dependent control valve-actuator assemblies of relevant categories: 2-port, 3-port and 6-port valves (if they incorporate a control valve function).
Where a certain control loop as a combination of controller and valve-actuator assembly was assessed under EN 15500-1:2017, this European Standard allows the assessment of the performance of combinations of that controller with different valve-actuator assemblies. The tests in this document ensure that valve/actuator assemblies, as components of control loops, can be replaced with products that provide comparable or better performance.
In hydronic system, valve-actuator assembly is a component of control loop that controls water flow rate according to the application control demand. The common Formula (1) describing the flow rate where whole hydronic system itself has an influence on actual flow rate as differential pressure across control valve-actuator assembly typically varies during operation.
Q=k_v . √((∆p_v)/(∆p_1 bar ))
where
Q [m3/h] water flow
kv [m3/h] flow coefficient of the valve
Δpv [bar] differential pressure across the valve
Δp1bar [bar] 1 bar differential pressure
Komponenten für BAC‑Regelkreise - Armaturen und Antriebsbaugruppen - Teil 1: Wasserbasierte HLK‑Anwendungen
Dieses Dokument legt Anforderungen und Prüfverfahren für Regel- und Steuereinrichtungen für einzelne Räume oder Zonen bei wasserbasierten HLK-Anwendungen fest.
Regelventile mit einem Nenndurchmesser größer als DN50 werden von diesem Dokument zurzeit nicht erfasst.
In den Anwendungsbereich fallen druckunabhängige und druckabhängige Regel- und Steuereinrichtungen der folgenden wesentlichen Kategorien: 2 Wege-, 3 Wege- und 6 Wege-Armaturen (sofern sie eine Stellgerätefunktion enthalten).
Wurde ein bestimmter Regelkreis als Kombination bestehend aus Regel- und Steuereinrichtungen nach EN 15500 1:2017 bewertet, ermöglicht diese Europäische Norm die Bewertung der Leistung von Kombinationen dieser Regler mit verschiedenen Regel- und Steuereinrichtungen. Die Prüfungen in diesem Dokument stellen sicher, dass Regel- und Steuereinrichtungen als Komponenten von Regelkreisen durch Produkte ersetzt werden können, die eine vergleichbare oder bessere Leistung bieten.
In Hydronik-Systemen ist die Regel- und Steuereinrichtung ein Bestandteil des Regelkreises, der die Wasserdurchflussmenge entsprechend den Anforderungen der Anwendung regelt. Die allgemeine Gleichung (1) beschreibt die Durchflussmenge, wobei das gesamte Hydronik-System selbst einen Einfluss auf die tatsächliche Durchflussmenge hat, da der Differenzdruck über die Regel- und Steuereinrichtung während des Betriebs üblicherweise schwankt.
Q=k_v⋅√((∆p_v)/(∆p_(1 "bar" ) ))
Dabei ist
Q [m3/h] die Wasserdurchflussmenge;
kv [m3/h] der Durchflusskoeffizient der Armatur;
Δpv [bar] der Differenzdruck in der Armatur; und
Δp1bar [bar] ein Differenzdruck von 1 bar.
Composants pour les boucles d’automatisation et de régulation du bâtiment (BAC) - Ensembles vannes et actionneurs - Partie 1: Applications CVC à eau
Le présent document spécifie les exigences et les méthodes d’essai des ensembles vanne-actionneur pour la régulation de zones individuelles dans les applications CVC à eau.
Les vannes de régulation d’un diamètre nominal supérieur à DN50 ne sont actuellement pas couvertes par le présent document.
Le domaine d’application comprend les ensembles vanne-actionneur de régulation dépendants et indépendants de la pression pour les catégories suivantes : vannes à 2 voies, 3 voies et 6 voies (si elles intègrent une fonction de vanne de régulation).
Là où une certaine boucle de régulation agissant en tant que combinaison d’un régulateur et d’un ensemble vanne-actionneur est évaluée conformément à l’EN 15500-1:2017, la présente Norme européenne permet d’évaluer les performances des combinaisons de ce régulateur avec différents ensembles vanne actionneur. Les essais présentés dans le présent document garantissent que les ensembles vanne actionneur, en tant que composants des boucles de régulation, peuvent être remplacés par des produits proposant des performances comparables ou supérieures.
Dans un système hydronique, l’ensemble vanne-actionneur est un composant de la boucle de régulation qui contrôle le débit d’eau en fonction de la demande de régulation de l’application. La Formule (1) commune décrit le débit lorsque l’ensemble du système hydronique lui-même a une influence sur le débit réel car la pression différentielle dans l’ensemble de régulation vanne-actionneur varie généralement pent le fonctionnement.
Q=k_v . √((∆p_v)/(∆p_1 bar ))
où
Q [m3/h] débit d’eau
kv [m3/h] coefficient de débit de la vanne
Δpv [bar] pression différentielle dans la vanne
Δp1bar [bar] pression différentielle de 1 bar
Sestavni deli za krmilno zanko BAC - Sklopi ventilov in aktuatorjev - 1. del: Aplikacije HVAC na vodni osnovi
General Information
Standards Content (Sample)
SLOVENSKI STANDARD
01-december-2024
Sestavni deli za krmilno zanko BAC - Sklopi ventilov in aktuatorjev - 1. del:
Aplikacije HVAC na vodni osnovi
Components for BAC control loops - Valve and actuator assemblies - Part 1: Water-
based HVAC applications
Komponenten für BAC-Regelkreise - Armaturen und Antriebsbaugruppen - Teil 1:
Wasserbasierte HLK-Anwendungen
Composants pour les boucles d’automatisation et de régulation du bâtiment (BAC) -
Ensembles vannes et actionneurs - Partie 1: Applications CVC à eau
Ta slovenski standard je istoveten z: prEN 17691-1
ICS:
91.140.10 Sistemi centralnega Central heating systems
ogrevanja
91.140.30 Prezračevalni in klimatski Ventilation and air-
sistemi conditioning systems
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.
DRAFT
EUROPEAN STANDARD
NORME EUROPÉENNE
EUROPÄISCHE NORM
October 2024
ICS 91.140.10; 91.140.30; 97.120
English Version
Components for BAC Control Loops - Valve and actuator
assemblies - Part 1: Water-based HVAC applications
Composants d'une boucle de régulation - Vannes et Komponenten für den Gebäudeautomations-Regelkreis
Actionneurs - Partie 1: Applications CVC à base d'eau - Ventil- und Antriebsbaugruppen - Teil 1:
Wasserbasierte HLK-Anwendungen
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee
CEN/TC 247.
If this draft becomes a European Standard, 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.
This draft European Standard 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, 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.
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: Rue de la Science 23, B-1040 Brussels
© 2024 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 17691-1:2024 E
worldwide for CEN national Members.
Contents Page
European foreword . 3
Introduction . 4
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 5
4 Symbols and abbreviations . 8
5 Valve-actuator assembly performance . 8
5.1 Performance evaluation . 8
5.2 Control performance . 8
5.3 Flow control characteristic of valve-actuator assembly with 2PT control signal . 9
5.4 Control performance score evaluation . 10
5.5 Product KPIs . 10
6 Interchangeability . 11
6.1 Valve-actuator assembly as component of control loop . 11
6.2 Interchangeability properties . 11
6.2.1 General. 11
6.2.2 Control performance classes (I.-III.) . 11
6.2.3 Flow control characteristic . 11
6.2.4 Sizing and product KPIs . 11
7 Test coverage . 11
7.1 Mandatory tests . 11
7.2 Product families . 12
7.3 Properties of a family of valve-actuator assemblies . 12
7.3.1 General. 12
7.3.2 Valves . 12
7.3.3 Actuators . 12
7.3.4 Required product information. 14
8 Measurement and test method . 14
8.1 General. 14
8.1.1 Closed loop test set-up . 14
8.1.2 Device under testing . 15
8.1.3 Test section . 15
8.1.4 Throttling valves . 16
8.1.5 Test environment . 16
8.2 Test cases . 17
8.2.1 Flow control characteristic . 17
8.2.2 Pressure dependency . 20
Annex A (informative) Example: Interchangeability declaration . 22
Bibliography . 24
European foreword
This document (prEN 17691-1:2024) has been prepared by Technical Committee CEN/TC 247 “Building
Automation, Controls and Building Management”, the secretariat of which is held by SNV.
This document is currently submitted to the CEN Enquiry.
This document is part of a series of standards on Components of Building Automation and Control loop. A list
of all parts in a series can be found on the CEN website.
Introduction
Various EU Directives and national regulations regarding energy saving and energy performance of buildings
require proof of energy efficiency.
These requirements and rising energy costs are encouraging owners and occupiers of buildings to reduce their
energy consumption. The cost for energy will be a critical factor in property rental and sale in the future.
Building Automation and Controls (BAC) have a strong impact on the energy performance of a building. This
is shown in the existing Building Automation and Control (BAC) standards (mainly [1], [2]). The standards
also show the importance of BAC quality to achieve the desired comfort (e.g., human health and productivity)
at maximum efficiency via control accuracy, BAC functions and BAC strategies.
For the measurement of the control accuracy (CA value) based on European Standard [1], [2]EN 15500-1:2017
and its accompanying Technical Report [3], a controller is tested as part of a control loop, consisting of the
loop elements room temperature sensor / controller / actuator / valve shown in Figure 1:
Key
1 application of a control loop (example water flow heating system)
2 sensor temperature
3 controller
4 actuator
5 valve
Figure 1 — Control loop elements
Both the controller as well as components contribute to the overall performance of a control loop.
A controller can be used in combination with different control loop elements, if they fulfil the requirements of
the interfaces to each other, and if the basic characteristics of the replaced control loop elements are the same.
The EN 17691 series and [4] will cover the different components used in conjunction with a BAC controller.
All these components contribute to the control accuracy of a control loop. These standards will classify the
components.
1 Scope
This document specifies requirements and test methods of valve-actuator assemblies in individual zone
control of water-based HVAC applications.
Control valves of nominal diameter larger than DN50 are currently not covered by this document.
Within the scope are pressure independent and pressure dependent control valve-actuator assemblies of
relevant categories: 2-port, 3-port and 6-port valves (if they incorporate a control valve function).
Where a certain control loop as a combination of controller and valve-actuator assembly was assessed under
EN 15500-1:2017, this European Standard allows the assessment of the performance of combinations of that
controller with different valve-actuator assemblies. The tests in this document ensure that valve/actuator
assemblies, as components of control loops, can be replaced with products that provide comparable or better
performance.
In hydronic system, valve-actuator assembly is a component of control loop that controls water flow rate
according to the application control demand. The common Formula (1) describing the flow rate where whole
hydronic system itself has an influence on actual flow rate as differential pressure across control valve-
actuator assembly typically varies during operation.
∆𝑝𝑝
𝑣𝑣
𝑄𝑄 =𝑘𝑘 . (1)
�
𝑣𝑣
∆𝑝𝑝
1 bar
where
Q [m /h] water flow
k [m /h] flow coefficient of the valve
v
Δp [bar] differential pressure across the valve
v
Δp [bar] 1 bar differential pressure
1bar
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content constitutes
requirements of this document. For dated references, only the edition cited applies. For undated references,
the latest edition of the referenced document (including any amendments) applies.
EN ISO 7345:2018, Thermal performance of buildings and building components - Physical quantities and
definitions (ISO 7345:2018)
EN 15500-1:2017, Energy Performance of Buildings - Control for heating, ventilating and air conditioning
applications - Part 1: Electronic individual zone control equipment - Modules M3-5, M4-5, M5-5
EN ISO 52000-1:2017, Energy performance of buildings - Overarching EPB assessment - Part 1: General
framework and procedures (ISO 52000-1:2017)
3 Terms and definitions
For the purposes of this document, the terms and definitions given in EN ISO 7345:2018, EN ISO 52000-
1:2017, EN 15500-1:2017 and the following apply.
ISO and IEC maintain terminology databases for use in standardization at the following addresses:
...
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