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

The purpose of this standard is to specify the applications, functionality set and application performance for electronic individual zone control equipment. The applications are for cooling and hot water or electrical heating as described in Annex B. This standard applies specifically to individual zone control equipment for maintaining temperature, humidity and air flow as a function of occupancy and demand operated with auxiliary electrical energy. Information required for the operation of the equipment may be processed using either analogue or digital techniques or a combination of both. Safety requirements remain unaffected by this standard. This standard refers to the input and output requirements of the controller and not of the input and output devices as e. g. sensors and actuators. This standard covers fixed-function, configurable and programmable controllers. The control equipment may or may not be connected to a data-network however communications aspects are not covered by this standard. These devices could be applied for any kind of building, intermittent or non-intermittent occupation, residential or non residential (see Annex B).

Energieeffizienz von Gebäuden - Automation von HLK-Anwendungen — Teil 1: Elektronische Regel- und Steuereinrichtungen für einzelne Räume oder Zonen - Module M3-5, M4-5, M5-5

Der Zweck dieser Europäischen Norm besteht in der Festlegung der Anwendungen, der Funktionen und der anwendungsbezogenen Leistung von elektronischen Regel  und Steuereinrichtungen für einzelne Räume oder Zonen.
Die Anwendungen sind für Kühlung und Warmwasserheizung oder elektrische Heizung vorgesehen. Diese Europäische Norm gilt insbesondere für Regel- und Steuereinrichtungen für einzelne Räume oder Zonen, die in Abhängigkeit von der Belegung und des Bedarfs der Aufrechterhaltung der Temperatur, Luftfeuchte und Belüftung dienen und mit elektrischer Hilfsenergie betrieben werden.
Die für den Betrieb der Geräte erforderlichen Informationen können entweder mit analogen oder mit digitalen Verfahren oder mit einer Kombination aus beidem verarbeitet werden. Anforderungen an die Sicherheit werden in dieser Europäischen Norm nicht berücksichtigt.
Diese Europäische Norm bezieht sich auf die Ein  und Ausgabevoraussetzungen der Steuer- und Regeleinheit und nicht auf die Ein  und Ausgabegeräte, wie etwa Sensoren und Aktoren.
Diese Europäische Norm umfasst fest konfigurierte, konfigurierbare und programmierbare Steuer  und Regeleinheiten. Die Steuer  und Regelgeräte können an ein Datennetz angeschlossen sein, müssen dies jedoch nicht sein; Kommunikationsaspekte werden in dieser Norm jedoch nicht behandelt. Diese Geräte könnten für jede Art von Gebäuden angewendet werden – mit dauerhafter oder nicht dauerhafter Belegung, für Wohngebäude oder Nichtwohngebäude.
Tabelle 1 zeigt die relative Position dieser Norm innerhalb des EPB Normenpakets im Kontext der in EN ISO 52000 1:2017 dargelegten modularen Struktur.
ANMERKUNG 1    In CEN ISO/TR 52000 2:2017 findet sich die gleiche Tabelle mit den Nummern (für jedes Modul) der jeweiligen EPB-Normen und den dazugehörigen technischen Berichten, die bereits veröffentlicht sind oder sich in Vorbereitung befinden.
ANMERKUNG 2    Die Module repräsentieren EPB Normen, auch wenn eine EPB Norm mehr als ein Modul abdecken kann und ein Modul von mehr als einer EPB Norm abgedeckt werden kann, zum Beispiel jeweils ein vereinfachtes und ein detailliertes Verfahren.

Performance énergétique des bâtiments - Régulation pour les applications de chauffage, de ventilation et de climatisation (CVC) - Partie 1 : Régulateur électronique de zone pour le chauffage - Modules M3-5, M4-5, M5-5

La présente Norme européenne a pour objet de spécifier les applications, ensembles de fonctionnalités et performances d'application des régulateurs électroniques de zone.
Les applications concernent le refroidissement et le chauffage à eau chaude ou électrique. La présente Norme européenne s'applique spécifiquement aux régulateurs électroniques de zone pour le maintien de la température, de l'humidité et du débit d'air en fonction des conditions d'occupation et de la demande, fonctionnant avec une énergie électrique auxiliaire.
Les informations nécessaires au fonctionnement de l'équipement peuvent être traitées par des techniques analogiques et/ou numériques. Les exigences en matière de sécurité ne font pas l'objet de la présente Norme européenne.
La présente Norme européenne fait référence aux spécifications des entrées-sorties du régulateur et non aux dispositifs d’entrée-sortie tels que, par exemple, les capteurs et actionneurs.
La présente Norme Européenne concerne les appareils dont les fonctions sont dédiées, configurables ou programmables. L'équipement de régulation peut ou non être connecté à un réseau de transmission de données. Toutefois, les aspects liés à la communication ne sont pas abordés dans la présente norme. Ces dispositifs peuvent être prévus pour toute sorte de bâtiment, à occupation intermittente ou non, résidentiel ou non.
Le Tableau 1 indique la position relative de la présente norme au sein de l'ensemble de normes européennes PEB dans le contexte de la structure modulaire indiquée dans prEN ISO 52000-1 :2015.
NOTE 1    Le même tableau se trouve dans prEN ISO/TR 52000-2 avec, pour chaque module, le nombre des normes PEB et les rapports qui les accompagnent, publiés ou en préparation.
NOTE 2   Les modules représentent les normes PEB, bien qu’une norme peut recouvrir plus qu’un module et qu’un module peut être recouvert par plus qu’une norme PEB, comme par exemple une méthode simplifiée et une détaillée.

Energijske lastnosti stavb - Naprave za regulacijo sistemov za ogrevanje, prezračevanje in klimatizacijo - 1. del: Elektronske naprave za regulacijo posameznih con - Moduli M3-5, M4-5, M5-5

Namen tega standarda je določiti uporabo, skupek značilnosti in učinkovitost uporabe za elektronsko opremo za nadzor posameznih področij. Uporaba je namenjena hlajenju in topli vodi ali električnemu ogrevanju, kot je opisano v dodatku B. Ta standard se nanaša zlasti na opremo za nadzor posameznih področij za vzdrževanje temperature, vlažnosti in pretok zraka v funkciji zasedenosti in potrebe, ki deluje s pomožno električno energijo. Informacije, ki so potrebne za delovanje opreme, so lahko obdelane bodisi z analognimi bodisi z digitalnimi tehnikami ali s kombinacijo obeh. Ta standard ne vpliva na varnostne zahteve. Ta standard se nanaša na vhodne in izhodne zahteve krmilnika in ne na vhodne in izhodne naprave, kot so senzorji in sprožilniki. Ta standard zajema krmilnike s fiksno funkcijo, nastavljive in programirljive krmilnike. Opremo za nadzor lahko priključite na podatkovno omrežje, vendar ta standard ne zajema vidikov komunikacije. Te naprave lahko uporabite v kakršni koli stavbi, s stalno ali občasno zasedenostjo, stanovanjski ali nestanovanjski (glejte dodatek B).

General Information

Status
Published
Public Enquiry End Date
02-Feb-2016
Publication Date
17-Apr-2018
Technical Committee
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
12-Dec-2017
Due Date
16-Feb-2018
Completion Date
18-Apr-2018

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2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.UHYDQMHHJXODFLMREnergieeffizienz von Gebäuden - Automation von HLK-Anwendungen — Teil 1: Elektronische Regel- und Steuereinrichtungen für einzelne Räume oder Zonen - Module M3-5, M4-5, M5-5Performance énergétique des bâtiments - Régulation pour les applications de chauffage, de ventilation et de climatisation (CVC) - Partie 1 : Régulateur électronique de zone pour le chauffage - Modules M3-5, M4-5, M5-5Energy Performance of Buildings - Control for heating, ventilating and air conditioning applications - Part 1: Electronic individual zone control equipment - Modules M3-5, M4-5, M5-597.120Avtomatske krmilne naprave za domAutomatic controls for household use91.140.30VLVWHPLVentilation and air-conditioning systems91.140.10Sistemi centralnega ogrevanjaCentral heating systemsICS:Ta slovenski standard je istoveten z:EN 15500-1:2017SIST EN 15500-1:2018en,fr,de01-maj-2018SIST EN 15500-1:2018SLOVENSKI

STANDARDSIST EN 15500:20081DGRPHãþD
SIST EN 15500-1:2018
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 15500-1
May
t r s y ICS
{ sä s v rä u râ
{ yä s t r Supersedes EN
s w w r rã t r r zEnglish Version

Energy Performance of Buildings æ Control for heatingá ventilating and air conditioning applications æ Part

sã Electronic individual zone control equipment æ Modules M uæ wá M væ wá M wæ w Performance énergétique des bâtiments æ Régulation pour les applications de chauffageá de ventilation et de de zone pour le chauffage æ Modules M uæ wá M væ wá M wæ w Energieeffizienz von Gebäuden æ Automation von HLKæAnwendungen æ Teil

sã Elektronische Regelæ und Steuereinrichtungen für einzelne Räume oder Zone æ Module M uæ wá M væ wá M wæ w This European Standard was approved by CEN on

t y February
t r s yä

egulations which stipulate the conditions for giving this European Standard the status of a national standard without any alterationä Upætoædate lists and bibliographical references concerning such national standards may be obtained on application to the CENæCENELEC Management Centre or to any CEN memberä

translation under the responsibility of a CEN member into its own language and notified to the CENæCENELEC Management Centre has the same status as the official versionsä

CEN members are the national standards bodies of Austriaá Belgiumá Bulgariaá Croatiaá Cyprusá Czech Republicá Denmarká Estoniaá Finlandá Former Yugoslav Republic of Macedoniaá Franceá Germanyá Greeceá Hungaryá Icelandá Irelandá Italyá Latviaá Lithuaniaá Luxembourgá Maltaá Netherlandsá Norwayá Polandá Portugalá Romaniaá Serbiaá Slovakiaá Sloveniaá Spainá Swedená Switzerlandá Turkey and United Kingdomä

EUROPEAN COMMITTEE FOR STANDARDIZATION COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre:
Avenue Marnix 17,
B-1000 Brussels

t r s y CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Membersä Refä Noä EN

s w w r ræ sã t r s y ESIST EN 15500-1:2018

EN 15500-1:2017 (E) 2 Contents Page European foreword ....................................................................................................................................................... 4 Introduction .................................................................................................................................................................... 5 1 Scope .................................................................................................................................................................... 6 2 Normative references .................................................................................................................................... 8 3 Terms and definitions ................................................................................................................................... 9 4 Symbols, subscripts and abbreviations................................................................................................ 11 4.1 Symbols ............................................................................................................................................................ 11 4.2 Subscripts ........................................................................................................................................................ 11 4.3 Abbreviations ................................................................................................................................................ 11 5 Functionality .................................................................................................................................................. 12 5.1 General ............................................................................................................................................................. 12 5.1.1 Functional objective .................................................................................................................................... 12 5.1.2 Minimum operating mode ........................................................................................................................ 12 5.1.3 Controller functions .................................................................................................................................... 12 5.2 Individual zone control applications .................................................................................................... 14 5.2.1 General ............................................................................................................................................................. 14 5.2.2 Water Systems ............................................................................................................................................... 15 5.2.3 Air- / Water-Systems .................................................................................................................................. 17 5.2.4 Electrical Systems ........................................................................................................................................ 25 5.3 Functionality and hardware ..................................................................................................................... 27 5.3.1 General ............................................................................................................................................................. 27 5.3.2 Power supply and data protection ......................................................................................................... 27 5.3.3 Inputs of the controller .............................................................................................................................. 27 5.3.4 Outputs of the controller ........................................................................................................................... 27 5.3.5 Sensor requirements .................................................................................................................................. 28 5.3.6 Actuator requirements .............................................................................................................................. 28 5.4 Temperature control accuracy................................................................................................................ 28 5.4.1 Introduction ................................................................................................................................................... 28 5.4.2 General ............................................................................................................................................................. 29 5.4.3 Definition of CV and CSD ............................................................................................................................ 29 5.4.4 Definition of the control accuracy CA ................................................................................................... 31 5.4.5 Temperature control accuracy compliance........................................................................................ 32 5.5 User Interface (UI) ....................................................................................................................................... 32 5.6 Electrical requirements ............................................................................................................................. 32 5.6.1 General ............................................................................................................................................................. 32 5.6.2 Supply voltage ............................................................................................................................................... 32 5.6.3 Protection against electric shock ........................................................................................................... 32 5.6.4 Electromagnetic compatibility ................................................................................................................ 32 5.6.5 Degrees of protection ................................................................................................................................. 33 5.6.6 Environmentally induced stress due to temperature ..................................................................... 33 5.6.7 Materials .......................................................................................................................................................... 33 6 Test method ................................................................................................................................................... 33 6.1 Power supply and data protection ......................................................................................................... 33 6.2 Operating modes .......................................................................................................................................... 33 SIST EN 15500-1:2018

EN 15500-1:2017 (E) 3 6.2.1 Economy mode............................................................................................................................................... 33 6.2.2 Frost/Building protection ......................................................................................................................... 34 6.3 Temperature control accuracy compliance ........................................................................................ 34 6.4 Electrical tests ................................................................................................................................................ 34 6.5 Supply voltage ................................................................................................................................................ 34 6.6 Protection against electric shock ............................................................................................................ 34 6.7 Electromagnetic compatibility ................................................................................................................ 34 6.8 Degrees of protection .................................................................................................................................. 34 6.9 Environmental individual stress due to temperature..................................................................... 34 7 Classification and designation ................................................................................................................. 34 8 Marking and documentation .................................................................................................................... 35 8.1 Marking ............................................................................................................................................................ 35 8.2 Documentation .............................................................................................................................................. 35 8.2.1 Installation instructions ............................................................................................................................. 35 8.2.2 User operating instructions ...................................................................................................................... 36 Bibliography ................................................................................................................................................................. 37 SIST EN 15500-1:2018

EN 15500-1:2017 (E) 4 European foreword This document (EN 15500-1:2017) has been prepared by Technical Committee CEN/TC 247 “Building Automation, Controls 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 November 2017, and conflicting national standards shall be withdrawn at the latest by November 2017. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN shall not be held responsible for identifying any or all such patent rights. This document supersedes EN 15500:2008. The most important changes are: — Respect the presentation of this project in the frame EPB in accordance with the drafting rules; — Non-normative content is in CEN/TR 15500-2:2016; — Function blocks and block diagrams (informative) removed; — Individual zone control applications: new structured and clearly arranged. This document is part of the set of standards on the energy performance of buildings (the set of EPB standards) and has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association (Mandate M/480, [15]), and supports essential requirements of EU Directive 2010/31/EC on the energy performance of buildings (EPBD, [16]). In case this standard is used in the context of national or regional legal requirements, mandatory choices may be given at national or regional level for such specific applications, in particular for the application within the context of EU Directives transposed into national legal requirements. Further target groups are users of the voluntary common European Union certification scheme for the energy performance of non-residential buildings (EPBD art.11.9) and any other regional (e.g. Pan European) parties wanting to motivate their assumptions by classifying the building energy performance for a dedicated building stock. This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association. According to the CEN-CENELEC Internal Regulations, the national standards organisations of the following countries are bound to implement this European Standard: 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 the United Kingdom. SIST EN 15500-1:2018

EN 15500-1:2017 (E) 5 Introduction This standard is part of a series of standards aiming at international harmonization of the methodology for the assessment of the energy performance of buildings, called “EPB set of standards”. As part of the “EPB set of standards” it complies with the requirements for the set of basic EPB documents EN ISO 52000-1:2017 (see Normative references), CEN/TS 16628 and CEN/TS 16629 (see bibliography [2] and [3]) developed under a mandate given to CEN by the European Commission and the European Free Trade Association (Mandate M/480), and supports essential requirements of EU Directive 2010/31/EU on the energy performance of buildings (EPBD). The standards issued by TC 247 for M/480 belong to the EPB set of standards and are in line with the over-arching standard (EN ISO 52000-1:2017) and drafted in accordance with the basic principles and detailed technical rules developed in the Phase I of the mandate. Also these standards are clearly identified in the modular structure developed to ensure a transparent and coherent EPB standard set. BAC (Building Automation and Control) is identified in the modular structure as Technical Building System M10. However, the standards of TC 247 deal with control accuracy, control functions and control strategies using standards communications protocol (these last standards do not belong to the EPB standards set). To avoid a duplication of calculation due to the BAC (avoid double impact), no calculation are done in BAC EPB standard set, but in each underlying standard of EPB set of standards (from M1 to M9 in the Modular Structure), an IDENTIFIER developed and present in the M10 covered by EN 15232-1:2015 is used where appropriate. These way of interaction is described in detailed in the Technical Report (CEN ISO/TR 52000-2:2017) accompanying the over-arching standard. As consequence, the Annex A and Annex B concept as EXCEL sheet with the calculation formulas used in the EPB standards are not applicable for the standards issued by TC 247 for M/480. The main target groups of this standard are all the users of the set of EPB standards (e.g. architects, engineers, regulators). Further target groups are parties wanting to motivate their assumptions by classifying the building energy performance for a dedicated building stock. More information is provided in the Technical Report accompanying this standard (CEN/TR 15500-2:2016 [5]). SIST EN 15500-1:2018

EN 15500-1:2017 (E) 6 1 Scope The purpose of this European Standard is to specify the applications, functionality set and application performance for electronic individual zone control equipment. The applications are for cooling and hot water or electrical heating. This European Standard applies specifically to individual zone control equipment for maintaining temperature, humidity and air flow as a function of occupancy and demand operated with auxiliary electrical energy. Information required for the operation of the equipment may be processed using either analogue or digital techniques or a combination of both. Safety requirements remain unaffected by this European Standard. This European Standard refers to the input and output requirements of the controller and not of the input and output devices as e.g. sensors and actuators. This European Standard covers fixed-function, configurable and programmable controllers. The control equipment may or may not be connected to a data-network however communications aspects are not covered by this standard. These devices could be applied for any kind of building, intermittent or non-intermittent occupation, residential or non-residential. Table 1 shows the relative position of this standard within the set of EPB standards in the context of the modular structure as set out in EN ISO 52000-1:2017. NOTE 1 In CEN ISO/TR 52000-2:2017 the same table can be found, with, for each module, the numbers of the relevant EPB standards and accompanying technical reports that are published or in preparation. NOTE 2 The modules represent EPB standards, although one EPB standard may cover more than one module and one module may be covered by more than one EPB standard, for instance a simplified and a detailed method respectively. SIST EN 15500-1:2018

EN 15500-1:2017 (E) 7 Table 1 — Position of this standard (in casu M3–5, M4–5, M5–5), within the modular structure of the set of EPB standards

Over-arching Building (as such) Technical Building System Submodule Descriptions Descriptions Descriptions Heating Cooling Ventilation Humidification Dehumidification Domestic Hot waters Lighting Building automation and control PV, wind, .. sub1 M1 M2

M3 M4 M5 M6 M7 M8 M9 M10 M11 1 General General General

2 Common terms and definitions; symbols, units and subscripts Building Energy Needs Needs

3 Application (Free) Indoor Conditions without Systems Maximum Load and Power

4 Ways to Express Energy Performance Ways to Express Energy Performance Ways to Express Energy Performance

5 Building Functions and Building Boundaries Heat Transfer by Transmission Emission and control x x x

6 Building Occupancy and Operating Conditions Heat Transfer by Infiltration and Ventilation Distribution and control

7 Aggregation of Energy Services and Energy Carriers Internal Heat Gains Storage and control

8 Building Partitioning Solar Heat Gains Generation and control

9 Calculated Energy Performance Building Dynamics (thermal mass) Load dispatching and operating conditions

SIST EN 15500-1:2018
EN 15500-1:2017 (E) 8

Over-arching Building (as such) Technical Building System Submodule Descriptions Descriptions Descriptions Heating Cooling Ventilation Humidification Dehumidification Domestic Hot waters Lighting Building automation and control PV, wind, .. sub1 M1 M2

M3 M4 M5 M6 M7 M8 M9 M10 M11 10 Measured Energy Performance Measured Energy Performance Measured Energy Performance

11 Inspection Inspection Inspection
12 Ways to Express Indoor Comfort
BMS
13 External Environment Conditions
14a Economic Calculation

a The shaded modules are not applicable. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN ISO 52000-1:2017, Energy performance of buildings - Overarching EPB assessment - Part 1: General framework and procedures CEN/TR 15500-2:2016, Control for heating, ventilating and air-conditioning applications - Part 2: Accompanying TR prEN 15500-1:2015 - Modules M3-5,M4-5,M5-5 EN 12098-1, Controls for heating systems - Part 1: Control equipment for hot water heating systems EN 12098-3, Controls for heating systems - Part 3: Control equipment for electrical heating systems EN 12098-5, Controls for heating systems - Part 5: Start-stop schedulers for heating systems EN 60529, Degrees of protection provided by enclosures (IP Code) (IEC 60529) EN 60730 (all parts), Automatic electrical controls for household and similar use (IEC 60730) EN ISO 7345:1995, Thermal insulation - Physical quantities and definitions (ISO 7345:1987) EN 60038, CENELEC standard voltages (IEC 60038) SIST EN 15500-1:2018

EN 15500-1:2017 (E) 9 3 Terms and definitions For the purposes of this document, the terms and definitions given in EN ISO 7345:1995, in EN ISO 52000-1:2017 and the following apply. 3.1 IZC electronic individual zone control equipment equipment performing closed loop control functions of physical measured variable(s) in a single room or in an area of building Note 1 to entry: Measured variable(s) are e.g. temperature, humidity, and pressure. 3.1.2 configurable controller controller where the manufacturer supplies one or more adjustable control strategies for specific applications 3.1.3 programmable controller controller where the control strategies can be programmed Note 1 to entry: Programmable controllers also are named automation station. 3.2 operating mode mode that applies either to control equipment or to control functions Note 1 to entry: Operating modes can be switched over by an automatic mode or manual. 3.2.1 manual mode of operation of equipment when significant control functions is overridden by the user 3.2.2 automatic mode of operation of equipment when significant control functions are not overridden by the user 3.2.3 operating time override mode of operation of equipment that overrides the operating state to a predetermined other operating mode, e.g. comfort or economy for a limited pre-determined period of time 3.2.4 comfort mode of operation for a normally occupied room Note 1 to entry: Other terms used for comfort mode are e.g. normal, occupied. Note 2 to entry: The room state is in the comfort range with regard to temperature, humidity, air-quality or air-flow. SIST EN 15500-1:2018

EN 15500-1:2017 (E) 10 3.2.5 economy mode of operation for an energy saving operating for a non-occupied room that does not need to be in the comfort operating mode for an extended period of time Note 1 to entry: In the reduced operating mode, the control setpoint is lowered or raised with respect to the comfort setpoint. Note 2 to entry: Other terms for economy mode are e.g. unoccupied, night set-back, sleeping, holiday. 3.2.6 pre comfort reduced operating mode for the room to quickly reach the comfort range upon changing to a comfort operating mode 3.2.7 frost protection mode of operation to reach a minimum acceptable positive temperature preventing freezing 3.2.8 building protection mode of operation to protect the building from overheating or under cooling Note 1 to entry: Building protection includes frost protection. 3.2.9 off state where control and interlock functions are not operational 3.2.10 holiday mode where a time programme is used to control a room temperature for a pre-determined period 3.2.11 tariff optimization function to control the room temperature according to the tariff rate signal from the electrical supplier 3.3 input and output devices 3.3.1 sensor device that measures a physical property and converts that measurement into a signal Note 1 to entry: Typical used physical properties measured in this context are temperature, humidity, air-quality, air-flow. Sensors are incorporated into a housing suitable for mounting. 3.3.2 detector device that indicates a special occurrence Note 1 to entry: Typical detectors are occupancy detectors. Very often, sensors and detectors are close to each other. E.g. occupancy sensors/detectors also measure physical properties SIST EN 15500-1:2018

EN 15500-1:2017 (E) 11 3.3.3 actuator device for controlling the amount of mass-, air- or energy flow Note 1 to entry: The actuator can be regarded as functional unit that carries out an appropriate change according to an appropriately evaluated signal. 4 Symbols, subscripts and abbreviations 4.1 Symbols For the purposes of this document, the symbols given in Clause 4 and Annex C of EN ISO 52000-1:2017 and the specific symbols listed in Table 2 apply. Table 2 — Symbols and units Symbol Quantity Unit CA control accuracy K CV control variation K CSD control to setpoint deviation K 4.2 Subscripts For the purposes of this document, the subscript given in Clause 4 and Annex C of EN ISO 52000-1:2017, and the specific subscripts listed in Table 3 apply. Table 3 — Subscripts Subscript Term DP dewpoint rad radiation S surface 4.3 Abbreviations For the purpose of this document, the specific abbreviations listed in Table 4 apply. Table 4 — Abbreviations Abbreviation Term BACS building automation and control system CAV constant air volume UI user interface IZC electronic individual zone control equipment NTC negative thermal coefficient PTC positive thermal coefficient SP setpoint VAV variable air volume SIST EN 15500-1:2018

EN 15500-1:2017 (E) 12 5 Functionality 5.1 General 5.1.1 Functional objective The objective of electronic individual zone control equipment is to save energy and contribute to acceptable levels of hygiene, health and comfort, by performing the following primary functions: — control the zone variables by influencing the energy supply (e.g. hot/chilled fluid, electrical energy, air volume, etc.) called also energy carrier; — The IZC application covered by this standard will be presented in accordance with the energy carrier used. — minimize the energy supplied to the zone (e.g. operating modes: comfort, pre comfort, economy, frost/building protection); — minimize running cost according to the price of energy. 5.1.2 Minimum operating mode To minimize energy consumption, heating zone controllers shall at least include the following three operating modes, as defined in 5.1.3: — comfort; — economy; — frost/building protection. 5.1.3 Controller functions Table 5 describes the functions which the controller can be capable of carrying out, and if they have any significant benefit on energy savings, air quality, comfort and hygiene/health. Table 5 — Controller functions - General functions for zone automation controls Name Description Save energy Air quality Temp comfort Hygiene/health Local function System function Control to setpoint of the zone temperature Algorithm to maintain the room temperature to a pre-determined level x

Setpoint determination Method by which the pre-determined room temperature is set

x x Setpoint limitation Upper and/or lower control limit for the room temperature setpoint x

Limitation monitoring Checking that the controlled output complies with pre-selected high or low limit parameters x

SIST EN 15500-1:2018

EN 15500-1:2017 (E) 13 Name Description Save energy Air quality Temp comfort Hygiene/health Local function System function Time scheduling Method by which the temperature level is split into pre-determined periods x

x x Optimum start stop, predictive control Algorithm to calculate advance level change period to achieve setpoint at a pre-determined time x

x x Free cooling Cooling with external air x

x Window open protection Monitoring the state of windows (open and closed). Signal sent to the zone controller to take action when the windows are open or closed x

Boost A heating operational mode providing maximal power (heating or cooling)

x x Summer/winter changeover Changing the action of the controller depending of the heating or cooling demand x

Summer/winter compensation Algorithm/selection to adjust temperature control for changes in load condition x

Operating time overr
...

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