Energy Performance of Buildings - Controls for heating systems - Part 3: Control equipment for electrical heating systems - Modules M3-5,6,7,8

This European Standard applies to electronic control equipment for heating systems with direct electrical emission, which have an integrated outside compensated function and or optimum start/stop function.
This control equipment controls the distribution and/or the generation of heat in relation to the outside temperature and time and other reference variables.
This European Standard also covers controllers that contain an integrated optimum start or an optimum start-stop control function. The controller modulates heating or control modes of electronic individual zone or emitter control equipment.
Safety requirements on heating systems remain unaffected by this standard. The dynamic behaviour of the local thermostats, sensors, or actuators is not covered in this standard.
A multi-distribution and/or multi-generation system needs a coordinated solution to prevent undesired interaction and is not part of this standard.
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 prEN ISO 52000 1.
NOTE 1   In prCEN ISO/TR 52000 2 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.

Energieeffizienz von Gebäuden - Mess-, Steuer- und Regeleinrichtungen für Heizungen - Teil 3: Regeleinrichtungen für Elektroheizungen - Module M3-5, 6, 7,8

Performance énergétique des bâtiments - Régulation pour les systèmes de chauffage - Partie 3 : Équipement de régulation pour les systèmes de chauffage électrique - Modules M3-5, 6, 7, 8

La présente Norme européenne s'applique aux équipements électroniques de régulation pour les systèmes de chauffage à émission électrique directe, qui sont équipés d'une fonction de régulation en fonction de la température extérieure et/ou d'une fonction de démarrage-arrêt optimisé.
Ces dispositifs de régulation servent à la commande et à la régulation de la distribution et/ou de la production de chaleur en fonction de la température extérieure et du temps, ainsi que d'autres variables de référence.
La présente Norme européenne couvre également les régulateurs contenant une fonction intégrée de commande de démarrage optimisé ou de démarrage-arrêt optimisé. Le régulateur module les modes de chauffage ou de commande des équipements électroniques de régulation de zones ou d'émetteurs.
Les exigences de sécurité relatives aux systèmes de chauffage ne sont pas affectées par la présente norme. Le comportement dynamique des thermostats locaux, des sondes ou des actionneurs n'est pas couvert par la présente norme.
Un système multidistribution et/ou multiproduction nécessite une solution coordonnée pour empêcher toute interaction indésirable, mais un tel système ne relève pas du domaine d'application de la présente norme.
Le tableau 1 présente la position de cette norme dans l’ensemble des normes PEB et dans le contexte de la structure modulaire comme décrit dans prEN ISO 52000-1.
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 - 3. del: Naprave za regulacijo električnih sistemov za ogrevanje - Moduli M3-5, 6, 7, 8

Ta standard se nanaša na opremo za elektronski nadzor za ogrevalne sisteme z neposredno električno emisijo, ki nimajo vgrajene funkcije nadomestitve zunaj in ali funkcije optimalnega zagona/ustavitve. Ta nadzorna oprema nadzira in upravlja razporeditev in/ali proizvodnjo toplote glede na zunanjo temperaturo in čas ter druge referenčne spremenljivke. Ta evropski standard zajema tudi regulacijske naprave z vgrajeno nadzorno funkcijo za optimalni začetek ali optimalni začetek/konec. Krmilnik modulira načine ogrevanja ali nadzora elektronske opreme za posamezna območja ali nadzor oddajnika. Ta standard ne vpliva na varnostne zahteve za grelne sisteme. Dinamično obnašanje lokalnih termostatov, senzorjev ali sprožilnikov ni zajeto v tem standardu. Večdistribucijski in/ali večproizvodni sistem potrebuje usklajeno rešitev, da se preprečijo neželeni medsebojni vplivi, in ni del tega standarda.

General Information

Status
Published
Publication Date
16-May-2017
Current Stage
6060 - Definitive text made available (DAV) - Publishing
Due Date
17-May-2017
Completion Date
17-May-2017

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2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Mess-, Steuer- und Regeleinrichtungen für Heizungen - Teil 3: Regeleinrichtungen für Elektroheizungen - Module M3-5, 6, 7 ,8Performance énergétique des bâtiments - Régulation pour les systèmes de chauffage - Partie 3 : Équipement de régulation pour les systèmes de chauffage électrique - Modules M3-5, 6, 7, 8Energy Performance of Buildings - Controls for heating systems - Part 3: Control equipment for electrical heating systems - Modules M3-5,6,7,897.120Avtomatske krmilne naprave za domAutomatic controls for household use91.140.10Sistemi centralnega ogrevanjaCentral heating systemsICS:Ta slovenski standard je istoveten z:EN 12098-3:2017SIST EN 12098-3:2018en,fr,de01-maj-2018SIST EN 12098-3:2018SLOVENSKI

STANDARDSIST EN 12098-3:20141DGRPHãþD
SIST EN 12098-3:2018
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 12098-3
May
t r s y ICS
{ yä s r rä s râ
{ yä s t r Supersedes EN
s t r { zæ uã t r s uEnglish Version
Energy Performance of Buildings æ Controls for heating systems æ Part

uã Control equipment for electrical heating systems æ Modules M uæ wá xá yá z Performance énergétique des bâtiments æ Régulation pour les systèmes de chauffage æ Partie

u ã Équipement de régulation pour les systèmes de chauffage électrique æ Modules M uæ wá

Engergieeffizienz von Gebäuden æ Messæá Steueræ und Regeleinrichtungen für Heizungen æ Teil

uã Regeleinrichtungen für Elektroheizungen æ Module M uæ wá
y á z 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 t r { zæ uã t r s y ESIST EN 12098-3:2018

EN 12098-3:2017 (E) 2 Contents Page European foreword ....................................................................................................................................................... 4 Introduction .................................................................................................................................................................... 5 1 Scope .................................................................................................................................................................... 6 2 Normative references .................................................................................................................................... 8 3 Terms and definitions ................................................................................................................................... 8 4 Symbols, subscripts and abbreviations................................................................................................ 16 4.1 Symbols ............................................................................................................................................................ 16 4.2 Subscripts ........................................................................................................................................................ 16 5 Functionality .................................................................................................................................................. 16 5.1 Functional objective .................................................................................................................................... 16 5.2 Control equipment functionality ............................................................................................................ 17 6 Requirements ................................................................................................................................................ 18 6.1 Data protection ............................................................................................................................................. 18 6.2 Characteristic heating curve .................................................................................................................... 18 6.3 Input signal – Sensors ................................................................................................................................. 18 6.4 Controller operation modes ..................................................................................................................... 18 6.4.1 General ............................................................................................................................................................. 18 6.4.2 Comfort operation mode ........................................................................................................................... 19 6.4.3 Economy operation mode ......................................................................................................................... 19 6.4.4 Building protection operation mode .................................................................................................... 19 6.4.5 Automatic operation mode ....................................................................................................................... 19 6.5 Frost protection ............................................................................................................................................ 19 6.6 Additional functions .................................................................................................................................... 19 6.6.1 General ............................................................................................................................................................. 19 6.6.2 Summer/winter switch function ............................................................................................................ 19 6.6.3 Set back function .......................................................................................................................................... 19 6.6.4 Optimum start function ............................................................................................................................. 20 6.6.5 Optimum stop function .............................................................................................................................. 20 6.7 Switching times ............................................................................................................................................. 20 6.8 Override mode .............................................................................................................................................. 20 6.9 Parameter settings ...................................................................................................................................... 21 6.10 Factory settings / default values ............................................................................................................ 21 6.10.1 Characteristic heating curve .................................................................................................................... 21 6.10.2 Switching times / operating condition ................................................................................................. 21 6.11 Switching relays ............................................................................................................................................ 21 6.12 Electrical requirements ............................................................................................................................. 21 6.12.1 Electrical connections ................................................................................................................................ 21 6.12.2 Supply voltage ............................................................................................................................................... 21 6.12.3 Electrical safety ............................................................................................................................................. 21 6.12.4 Electromagnetic compatibility ................................................................................................................ 22 6.13 Degree of protection ................................................................................................................................... 22 6.14 Environmentally induced stress due to temperature ..................................................................... 22 6.15 Materials .......................................................................................................................................................... 22 6.16 Use of graphical symbols ........................................................................................................................... 22 SIST EN 12098-3:2018

EN 12098-3:2017 (E) 3 7 Test methods .................................................................................................................................................. 22 7.1 Data Protection .............................................................................................................................................. 22 7.2 Controller operation modes ..................................................................................................................... 22 7.3 Controller characteristic heating curve ............................................................................................... 22 7.4 Frost protection............................................................................................................................................. 25 7.5 Switching times ............................................................................................................................................. 25 7.6 Manual override mode................................................................................................................................ 25 7.7 Optimum start-stop function .................................................................................................................... 25 7.7.1 General ............................................................................................................................................................. 25 7.7.2 Test conditions .............................................................................................................................................. 26 7.7.3 Test run ............................................................................................................................................................ 27 7.7.4 Test results start optimization ................................................................................................................ 27 7.7.5 Test results stop optimization ................................................................................................................. 29 7.8 Set back ............................................................................................................................................................ 29 7.9 Parameter settings ....................................................................................................................................... 29 7.10 Factory settings ............................................................................................................................................. 29 7.11 Switching relays ............................................................................................................................................ 30 7.12 Electrical test .................................................................................................................................................. 30 7.13 Degrees of protection .................................................................................................................................. 30 7.14 Environmental individual stress due to temperature..................................................................... 30 8 Marking ............................................................................................................................................................ 30 9 Documentation .............................................................................................................................................. 30 9.1 Technical documents................................................................................................................................... 30 9.2 Technical Specifications ............................................................................................................................. 30 9.2.1 Controller ........................................................................................................................................................ 30 9.2.2 Output signals ................................................................................................................................................ 31 9.2.3 Input signals (sensors) ............................................................................................................................... 31 9.3 Instruction installation ............................................................................................................................... 31 9.4 User guideline ................................................................................................................................................ 31 Bibliography ................................................................................................................................................................. 32

SIST EN 12098-3:2018

EN 12098-3:2017 (E) 4 European foreword This document (EN 12098-3:2017) 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 12098-3:2013. This document has been prepared under a mandate [12] given to CEN by the European Commission and the European Free Trade Association. This document is part of the set of standards on the energy performance of buildings (the set of EPB standards). 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. 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 12098-3:2018

EN 12098-3:2017 (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 (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). 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) 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 is used where appropriate. These way of interaction is described in detailed in the Technical Report (CEN ISO/TR 52000-2) 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 12098-7:2015 [5]). This third edition cancels and replaces the second edition EN 12098-3:2013. The most important changes are: — respect the presentation of this project in the frame EPB in accordance with the drafting rules; — Clause 6.7 Switching times and Table 2 introducing networked clocks improvements in line with EN 12098-5 modifications. SIST EN 12098-3:2018

EN 12098-3:2017 (E) 6 1 Scope This European Standard applies to electronic control equipment for heating systems with direct electrical emission, which have an integrated outside compensated function and or optimum start/stop function. This control equipment controls the distribution and/or the generation of heat in relation to the outside temperature and time and other reference variables. This European Standard also covers controllers that contain an integrated optimum start or an optimum start-stop control function. The controller modulates heating or control modes of electronic individual zone or emitter control equipment. Safety requirements on heating systems remain unaffected by this standard. The dynamic behaviour of the local thermostats, sensors, or actuators is not covered in this standard. A multi-distribution and/or multi-generation system needs a coordinated solution to prevent undesired interaction and is not part of this standard. 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. NOTE 1 In CEN ISO/TR 52000-2 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 12098-3:2018

EN 12098-3:2017 (E) 7 Table 1 — Position of this standard (in casu M3–5, 6, 7, 8), within the modular structure of the set of EPB standards

Overarching 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

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

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

8 Building Partitioning Solar Heat Gains Generation and control x

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

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. SIST EN 12098-3:2018

EN 12098-3:2017 (E) 8 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 60038, CENELEC standard voltages (IEC 60038) EN 60529, Degrees of protection provided by enclosures (IP Code) (IEC 60529) EN 60730-1, Automatic electrical controls for household and similar use — Part 1: General requirements (IEC 60730-1) EN ISO 7345:1995, Thermal insulation - Physical quantities and definitions (ISO 7345:1987) 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 7345:1995, in EN ISO 52000-1:2017 and the following apply. 3.1 outside temperature compensated controller OTC controller controller optimising and/or regulating the generation of heat in relation to the outside temperature, time and optionally other reference variables (e.g. room temperature) Note 1 to entry: The outside temperature compensated function calculates the heating power in relation to the outside temperature, based on the heating curve. Note 2 to entry: The outside temperature optimum start-stop function calculates the pre-heat time and/or stop time to reach the comfort temperature level in relation with the outside temperature, switch time and several parameters (e.g. room temperature, tariff). 3.2 control equipment equipment which consists of OTC controller,

and connectors for sensor input signals and output signals but does not include the sensors and actuating equipment (see Figure 1) SIST EN 12098-3:2018

EN 12098-3:2017 (E) 9

Key 1 OTC controller 2 output signals 3 input signals: reference variables 4 actuating equipment 5 heat generation and distribution Figure 1 — Control equipment for electrical heating systems 3.3 actuating equipment equipment by which the controller affects the controlled variable 3.4 controlled variable heating emitted power 3.5 output signal signal generated by the OTC controller for operating the local thermostat or the actuating equipment 3.6 reference variable outside temperature with or without other influences or variables (e.g. room temperature) used to determine the setpoint of the controlled variable Note 1 to entry: The reference variable is an input signal. 3.7 outside temperature reference variable that is measured with a sensor fitted outside the building, mainly intended to measure the ambient air temperature 3.8 room temperature resulting temperature in the building arising in comfort, economy or building protection operation mode of the OTC controller Note 1 to entry: Room temperature can be different for individual rooms. SIST EN 12098-3:2018

EN 12098-3:2017 (E) 10 3.9 characteristic heating curve relation between the setpoint value of the controlled variable (heating) and the reference variables (outside air temperature) defined by two or more parameters and depending on operation mode and additional variables Note 1 to entry: The heating is calculated as a function of the characteristic heating curve, based on the outside temperature and the present room temperature setpoint. 3.10 comfort operation mode mode of operation between the switch-on time and the switch-off time, maintaining comfort room temperature Note 1 to entry: Mode of operation for normally occupied rooms. 3.11 economy operation mode mode of operation between the switch-off time and the switch-on time, maintaining a reduced room temperature compared to the comfort room temperature Note 1 to entry:

Economy operation mode is a reduced mode. 3.12 building protection operation mode mode of operation between the switch-off time and the switch-on time, maintaining a room temperature required for building protection 3.13 automatic operation mode mode of operation of equipment when significant control functions are not overridden by the user Note 1 to entry: The operation mode is selected automatically according to the scheduler, actual date and time. 3.14 summer/winter switch function seasonal switch on/off of the heating depending on a function of the outside air temperature 3.15 set back function function, starting when the operation mode changes from comfort to economy or building protection mode Note 1 to entry: During set back period, the heating is switched off until the calculated or measured room temperature drops below the economy or building protection setpoint; the operation mode switches back to comfort mode or the calculated switch-on time of the optimization start function is reached. SIST EN 12098-3:2018

EN 12098-3:2017 (E) 11 3.16 optimum start function function, calculating the optimum pre-heat time to reach the comfort temperature level at the beginning of the comfort time period (see Figure 2) and possibly in relation with energy price rate (see Figure 5) Note 1 to entry: The optimum start- and the optimum stop functions are illustrated by Figure 3. Heating periods are different from scheduled occupation periods. These differences, due to thermal inertia, depend mainly on heating loads (or temperature differences). A start and/or stop optimizer controls these switching points, using outside and/or room temperatures or their differences in relation to setpoints.

Key r,cmfT comfort room temperature r,redT reduced room temperature 1t beginning of comfort occupation period 2t switch-on time with start optimization (variable start) 3t switch-on time without start optimization (fixed start) 4t end of comfort occupation period without stop optimization (fixed stop) 5t switch-off time with stop optimization (variable stop) cmft comfort occupation period:=−cmf41ttt wast time period of wasted heat (energy saving potential with start optimization) NOTE −21tt is the optimum start period. −54ttis the optimum stop period. Figure 2 — Temperature time curve with optimizer function SIST EN 12098-3:2018

EN 12098-3:2017 (E) 12

Key S schedule occupation period 3 comfort occupation period O heating operation status 4 optimum start period R room temperature profile 5 main controller function 1 comfort room temperature 6 optimum stop period 2 reduced room temperature 7 set back period Figure 3 — Example of optimum start-and stop function 3.17 adaptive optimum start function added function to optimum start function, which recalculates the parameters used to determine the switch-on time, based on measured room temperature 3.18 optimum stop function function, switching off or reducing the heat generation at the earliest possible point in time so that the room temperature will drop maximum 0,5 K below the comfort setpoint when the operation mode changes from comfort mode to economy or building protection mode Note 1 to entry: See Figure 2. 3.19 adaptive optimum stop function added function to optimum stop function, which recalculates the parameters used to determine the switch-off time, based on measured room temperature 3.20 scheduler function which switches heating modes affecting the heating control system according to a program Note 1 to e

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