EN 12098-3:2013

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.JXODFLMRMess, Steuer
und Regeleinrichtungen für Heizungen - Teil 3: Regeleinrichtungen für ElektroheizungenRégulation pour les systèmes de chauffage - Partie 3: Equipement de régulation pour les systèmes de chauffage électriqueControls for heating systems - Part 3: Control equipment for electricale heating systems97.120Avtomatske krmilne naprave za domAutomatic controls for household use91.140.10Sistemi centralnega ogrevanjaCentral heating systemsICS:Ta slovenski standard je istoveten z:EN 12098-3:2013SIST EN 12098-3:2014en,fr,de01-februar-2014SIST EN 12098-3:2014SLOVENSKI
STANDARDSIST EN 12098-4:2006SIST EN 12098-3:20041DGRPHãþD

EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 12098-3
October 2013 ICS 97.100.10; 97.120 Supersedes EN 12098-3:2002, EN 12098-4:2005English Version
Controls for heating systems - Part 3: Control equipment for electrical heating systems
Régulation pour les systèmes de chauffage - Partie 3: Équipement de régulation pour les systèmes de chauffage électrique
Mess-, Steuer- und Regeleinrichtungen für Heizungen - Teil 3: Regeleinrichtungen für Elektroheizungen This European Standard was approved by CEN on 14 September 2013.
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. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member.
This European Standard exists 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, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom.
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B-1000 Brussels © 2013 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 12098-3:2013: ESIST EN 12098-3:2014

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 signals signals generated by the OTC controller for operating the local thermostat or the actuating equipment 3.6 reference variables (input signal) outside temperature with or without other influences or variables (e.g. room temperature) used to determine the set point of the controlled variable 3.7 outside temperature reference variable that is measured with a sensor fitted outside the building, mainly intended to measure the 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. 3.9 characteristic heating curve relation between the set point value of the controlled variable (heating) and the reference variables (outside temperature) defined by two or more parameters and depending on operation mode and additional variables SIST EN 12098-3:2014

Key 1 comfort room temperature 2 reduced room temperature A(0) beginning of comfort occupation period A(x) switch-on time with start optimization (variable start) A(y) switch-on time without start optimization (fixed start) B(0) end of comfort occupation period without stop optimization (fixed stop) B(x) switch-off time with stop optimization (variable stop) C = A(0) - B(0): comfort occupation period A(x) - A(0): optimum start period B(x) - B(0): optimum stop period W time period of wasted heat time (energy saving potential with start optimization) Figure 2 — Temperature time curve with optimizer function 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 set points. SIST EN 12098-3:2014

Key S schedule occupation period O heating operation status R room temperature profile 1 comfort room temperature 2 reduced room temperature 3 comfort occupation period 4 optimum start period 5 main controller function 6 optimum stop period 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 set point when the operation mode changes from comfort mode to economy or building protection mode (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 (see Figure 3) according to a program Note 1 to entry: The program includes memorized switch times, reproducing periods or periodic cycles, daily, weekly or yearly. The program may include periods of derogation. SIST EN 12098-3:2014

Key 1 comfort room temperature 2 reduced room temperature A and B are programmed switch times C derogation manual start D programmable duration Upper Diagram: “derogation manual start” initiates a predefined timer which switches the mode to comfort. After the timer is elapsed, the mode defined by the scheduler is applied. Lower Diagram: “derogation manual s
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