SIST EN 12828:2013+A1:2014
(Main)Heating systems in buildings - Design for water-based heating systems
Heating systems in buildings - Design for water-based heating systems
EN 12828+A1 specifies design criteria for water based heating systems in buildings with a maximum operating temperature of up to 105 °C. In case of heating systems with maximum operating temperatures over 105 °C other safety aspects than those described in 4.6 may apply. The other clauses of this European Standard are still valid for those systems. This European Standard does not amend product standards or product installation requirements. This standard covers the design of: - heat supply systems; - heat distribution systems; - heat emission systems; - control systems. This European Standard takes into account heating requirements of attached systems (e.g. domestic hot water, process heat, air conditioning, ventilation) in the design of a heat supply, but does not cover the design of these systems. This European Standard does not cover requirements for installation or commissioning or instructions for operation, maintenance and use of water based heating systems. This European Standard does not cover the design of fuel and energy supply systems.
Heizungsanlagen in Gebäuden - Planung von Warmwasser-Heizungsanlagen
Diese Europäische Norm legt die Planungskriterien für Warmwasser Heizungsanlagen in Gebäuden mit einer maximalen Betriebstemperatur bis 105 °C fest. Bei Heizungsanlagen mit Betriebstemperaturen über 105 °C können andere Sicherheitsaspekte als nach 4.6 zu berücksichtigen sein. Die übrigen Abschnitte dieser Norm treffen jedoch auch auf diese Anlagen zu.
Durch diese Europäische Norm ändern sich keine Produktnormen bzw. Anforderungen an die Installation von Produkten. Diese Norm behandelt die Planung von:
- Wärmeerzeugungssystemen;
- Wärmeverteilungssystemen;
- Wärmeabgabesystemen;
- Regelanlagen.
Diese Europäische Norm berücksichtigt den Wärmebedarf verbundener Systeme (z. B. Warmwasserbereitung, Prozesswärme, Klimatisierung, Lüftung usw.) bei der Planung der Wärmeerzeugung, behandelt jedoch nicht deren Planung an sich.
Diese Europäische Norm behandelt nicht die Anforderungen an die Installation oder Abnahme bzw. Anleitungen zu Betrieb, Wartung und Nutzung von Warmwasser Heizungsanlagen.
Diese Europäische Norm behandelt nicht die Planung von Brennstoff und Energieversorgungsanlagen.
Systèmes de chauffage dans les bâtiments - Conception des systèmes de chauffage à eau
La présente Norme européenne spécifie les critères de conception des installations de chauffage à eau des bâtiments, dont la température maximale de service ne dépasse pas 105 °C. Dans le cas de systèmes de chauffage pouvant fonctionner au-dessus de 105 °C, l’exigence de sécurité peut faire intervenir d’autres aspects que ceux présentés en 4.6. Pour ces systèmes, les autres articles de la présente Norme européenne restent valables.
La présente Norme européenne ne modifie pas les normes de produit ni les exigences relatives à l’installation des produits. La présente norme traite de la conception :
- des systèmes de production de chaleur ;
- des systèmes de distribution de chaleur ;
- des systèmes d’émission de chaleur ;
- des systèmes de régulation.
La présente Norme européenne tient compte des exigences thermiques propres aux systèmes connexes (tels que eau chaude sanitaire, process, climatisation, ventilation, etc.) dans la conception de la production de chaleur, mais ne traite pas de la conception de ces systèmes.
La présente Norme européenne ne traite pas des exigences relatives à l’installation ou à la mise en service, ou aux instructions de conduite, de maintenance et d’utilisation des installations de chauffage à eau.
La présente Norme européenne ne traite pas de la conception des systèmes d’alimentation en combustible et en énergie.
Ogrevalni sistemi v stavbah - Projektiranje toplovodnih ogrevalnih sistemov
Standard EN 12828+A1 določa merila projektiranja za toplovodne ogrevalne sisteme v stavbah z najvišjo obratovalno temperaturo 105 °C. V primeru ogrevalnih sistemov z najvišjo obratovalno temperaturo več kot 105 °C se lahko uporabljajo drugi varnostni vidiki od tistih, opisanih v točki 4.6. Druga določila tega evropskega standarda so še vedno veljavna za navedene sisteme. Ta evropski standard ne spreminja standardov za proizvode ali zahtev za namestitev. Ta standard zajema projektiranje: - sistemov za dovod toplote; - sistemov za porazdelitev toplote; - sistemov za emisijo toplote; - nadzornih sistemov. Ta evropski standard upošteva zahteve v zvezi z ogrevanjem povezanih sistemov (npr. topla voda v gospodinjstvih, procesna toplota, klimatske naprave, ventilacija) pri projektiranju dovoda toplote, vendar ne zajema projektiranja teh sistemov. Ta evropski standard ne zajema zahtev za namestitev ali začetek uporabe ali navodil za obratovanje, vzdrževanje in uporabo toplovodnih ogrevalnih sistemov. Ta evropski standard ne zajema projektiranja dovodnih sistemov za gorivo in energijo.
General Information
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Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Ogrevalni sistemi v stavbah - Projektiranje toplovodnih ogrevalnih sistemovHeizungsanlagen in Gebäuden - Planung von Warmwasser-HeizungsanlagenSystèmes de chauffage dans les bâtiments - Conception des systèmes de chauffage à eauHeating systems in buildings - Design for water-based heating systems91.140.10Sistemi centralnega ogrevanjaCentral heating systemsICS:Ta slovenski standard je istoveten z:EN 12828:2012+A1:2014SIST EN 12828:2013+A1:2014en,fr,de01-julij-2014SIST EN 12828:2013+A1:2014SLOVENSKI
STANDARD
SIST EN 12828:2013+A1:2014
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 12828:2012+A1
April 2014 ICS 91.140.10 Supersedes EN 12828:2012English Version
Heating systems in buildings - Design for water-based heating systems
Systèmes de chauffage dans les bâtiments - Conception des systèmes de chauffage à eau
Heizungsanlagen in Gebäuden - Planung von Warmwasser-Heizungsanlagen This European Standard was approved by CEN on 6 October 2012 and includes Amendment 1 approved by CEN on 12 January 2014.
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.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre:
Avenue Marnix 17,
B-1000 Brussels © 2014 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 12828:2012+A1:2014 ESIST EN 12828:2013+A1:2014
EN 12828:2012+A1:2014 (E) 2 Contents Page Foreword .4 Introduction .5 1 Scope .6 2 Normative references .6 3 Terms, definitions and symbols .7 3.1 Terms and definitions .7 3.2 Symbols . 10 4 System design requirements . 13 4.1 Requirements for preliminary design information . 13 4.2 Heat supply . 14 4.2.1 General . 14 4.2.2 Sizing . 14 4.3 Heat distribution . 15 4.3.1 General . 15 4.3.2 Design criteria . 15 4.4 Heat emission . 17 4.4.1 General . 17 4.4.2 Sizing . 17 4.4.3 Positioning . 18 4.4.4 Thermal environment . 18 4.4.5 Surface temperatures . 18 4.5 Controls . 18 4.5.1 General . 18 4.5.2 Classification . 19 4.5.3 Central control . 19 4.5.4 Zone control . 20 4.5.5 Local control . 20 4.5.6 Timing control . 20 4.6 Safety arrangements . 21 4.6.1 General . 21 4.6.2 Equipment required for sealed systems . 21 4.6.3 Equipment required for open vented systems . 24 4.7 Operational requirements . 25 4.7.1 General . 25 4.7.2 Provision for monitoring operating conditions . 26 4.7.3 Temperature controller . 26 4.7.4 Pressure maintaining control device . 26 4.7.5 Water level adjustment . 26 4.8 Thermal insulation . 26 4.8.1 General . 26 4.8.2 Undesirable heat losses . 27 4.8.3 Harmful effects of too high temperatures . 28 4.8.4 Frost protection . 28 5 Instructions for operation, maintenance and use . 28 6 Installation and commissioning . 28 Annex A (informative)
Control system classification . 29 A.1 Control system classification . 29 SIST EN 12828:2013+A1:2014
EN 12828:2012+A1:2014 (E) 3 A.1.1 General . 29 A.1.2 Heating control system modes . 29 A.1.3 Control system performance modes . 29 A.1.4 Control system classification table . 29 A.2 Examples of control system classification . 30 A.2.1 Local manual control . 30 A.2.2 Local manual control and central automatic control . 31 A.2.3 Local automatic control and central automatic control . 31 A.2.4 Local automatic control and automatic zone control . 33 A.2.5 Local automatic control and central automatic control with optimisation . 33 Annex B (informative)
Thermal Environment . 35 Annex C (informative)
Thermal insulation . 37 Annex D (informative)
Guidance for dimensioning diaphragm expansion vessels and pressurisation systems (sealed systems) . 40 D.1 General . 40 D.2 Expansion vessel size calculation . 41 Annex E (informative)
Safety valves for heating systems . 44 E.1 Classification . 44 E.2 General requirements . 44 E.2.1 General . 44 E.2.2 Materials . 44 E.2.3 Protection against maladjustments . 44 E.2.4 Guidance of the moveable parts . 44 E.2.5 Easing gear . 44 E.2.6 Protection of sliding and rotating elements . 45 E.2.7 Design of coil compression springs . 45 E.2.8 Transport protections . 45 E.2.9 Pipes, installation and body . 45 E.2.10 Marking . 45 E.3 Calculation of the relief capacity . 47 E.4 Requirements for safety valves marked H . 47 E.4.1 General . 47 E.4.2 Body and spring cap design . 47 E.4.3 Threads on the inlet and outlet . 48 E.4.4 Connections . 48 E.4.5 Calculation . 48 E.4.6 Setting. 48 E.5 Requirements for safety valves marked D/G/H . 48 E.5.1 General . 48 E.5.2 Body and spring cap design . 49 E.5.3 Design of the valve disc. 49 E.5.4 Protection of sliding and rotating elements as well as springs . 49 E.5.5 Safety valve with back pressure compensation . 49 E.5.6 Setting. 49 Annex F (informative)
A–deviations . 53 Bibliography . 54
SIST EN 12828:2013+A1:2014
EN 12828:2012+A1:2014 (E) 4 Foreword This document (EN 12828:2012+A1:2014) has been prepared by Technical Committee !CEN/TC 228 “Heating systems and water based cooling systems in buildings”", the secretariat of which is held by DIN. 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 October 2014, and conflicting national standards shall be withdrawn at the latest by October 2014. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights. This document includes Amendment 1 approved by CEN on 12 January 2014. This document supersedes !EN 12828:2012". The start and finish of text introduced or altered by amendment is indicated in the text by tags !". The main changes !between EN 12828:2003 and EN 12828:2012 were": — restrictions concerning additional safety requirements for systems larger than 1 MW were removed; — an informative annex for safety valves was added; — definitions were corrected and added; — the guidance for dimensioning of diaphragm expansion vessels (sealed systems) in Annex D was revised, and a figure describing the different pressure level was added; — a specification for the water used has been added in 4.3.2.1; — the requirements concerning safety arrangements (4.6) were revised and clarified; — 4.7.4 concerning pressure maintaining control device was revised. 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, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. SIST EN 12828:2013+A1:2014
EN 12828:2012+A1:2014 (E) 5 Introduction The subjects covered by CEN/TC 228 are the following: — design of heating systems (water based, electrical, etc.); — installation of heating systems; — commissioning of heating systems; — instructions for operation, maintenance and use of heating systems; — methods for calculation of the design heat loss and heat load; — methods for calculation of the energy performance of heating systems. Heating systems also include the effect of attached systems such as hot water production systems. All these standards are system standards, i.e. they are based on requirements addressed to the system as a whole and not dealing with requirements to the products within the system. Where possible, reference is made to other CEN or ISO standards, e.g. product standards. However, use of products complying with relevant product standards is no guarantee of compliance with the system requirements. The requirements are mainly expressed as functional requirements, i.e. requirements dealing with the function of the system and not specifying shape, material, dimensions or the like. The guidelines describe ways to meet the requirements, but other ways to fulfil the functional requirements may be used if fulfilment can be proved. Heating systems differ among the member countries due to climate, traditions and national regulations. In some cases, requirements are given as classes so national or individual needs may be accommodated. In cases where the standards contradict with national regulations, the latter should be followed. SIST EN 12828:2013+A1:2014
EN 12828:2012+A1:2014 (E) 6 1 Scope This European Standard specifies design criteria for water based heating systems in buildings with a maximum operating temperature of up to 105 °C. In case of heating systems with maximum operating temperatures over 105 °C other safety aspects than those described in 4.6 may apply. The other clauses of this European Standard are still valid for those systems. This European Standard does not amend product standards or product installation requirements. This standard covers the design of: — heat supply systems; — heat distribution systems; — heat emission systems; — control systems. This European Standard takes into account heating requirements of attached systems (e.g. domestic hot water, process heat, air conditioning, ventilation) in the design of a heat supply, but does not cover the design of these systems. This European Standard does not cover requirements for installation or commissioning or instructions for operation, maintenance and use of water based heating systems. This European Standard does not cover the design of fuel and energy supply systems. 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 215, Thermostatic radiator valves — Requirements and test methods EN 442-1, Radiators and convectors — Part 1: Technical specifications and requirements EN 442-2, Radiators and convectors — Part 2: Test methods and rating EN 442-3, Radiators and convectors — Part 3: Evaluation of conformity EN 806-2, Specifications for installations inside buildings conveying water for human consumption — Part 2: Design EN 1264-1, Water based surface embedded heating and cooling systems — Part 1: Definitions and symbols EN 1264-2, Water based surface embedded heating and cooling systems — Part 2: Floor heating: Prove methods for the determination of the thermal output using calculation and test methods EN 1264-3, Water based surface embedded heating and cooling systems — Part 3: Dimensioning EN 1264-4, Water based surface embedded heating and cooling systems — Part 4: Installation EN 1264-5, Water based surface embedded heating and cooling systems — Part 5: Heating and cooling surfaces embedded in floors, ceilings and walls — Determination of the thermal output SIST EN 12828:2013+A1:2014
EN 12828:2012+A1:2014 (E) 7 EN 12170, Heating systems in buildings — Procedure for the preparation of documents for operation, maintenance and use — Heating systems requiring a trained operator EN 12171, Heating systems in buildings — Procedure for the preparation of documents for operation, maintenance and use — Heating systems not requiring a trained operator EN 12831, Heating systems in buildings — Method for calculation of the design heat load EN 14336, Heating systems in buildings — Installation and commissioning of water based heating systems EN 15500, Control for heating, ventilating and air-conditioning applications — Electronic individual zone control equipment EN 60730-2-9, Automatic electrical controls for household and similar use — Part 2-9: Particular requirements for temperature sensing controls (IEC 730-2-9, modified) EN ISO 7730, Ergonomics of the thermal environment — Analytical determination and interpretation of thermal comfort using calculation of the PMV and PPD indices and local thermal comfort criteria (ISO 7730) EN ISO 13732-1, Ergonomics of the thermal environment — Methods for the assessment of human responses to contact with surfaces — Part 1: Hot surfaces (ISO 13732-1) 3 Terms, definitions and symbols For the purposes of this document, the following terms, definitions and symbols apply. 3.1 Terms and definitions 3.1.1 attached system system connected to the heating system which may influence the design and heat load of the system EXAMPLE Examples of such systems include: —
domestic hot water systems; —
ventilation and air conditioning systems; —
process heating systems 3.1.2 central control method of controlling the heat flow to a heat emission system by changing the flow rate and/or the flow temperature at a central point 3.1.3 design heat load maximum heat output required from the heating system of a building, in order to maintain required internal temperatures without supplementary heating [SOURCE: EN ISO 15927-5:2004, 3.1.1] 3.1.4 design heat loss quantity of heat per unit time leaving the building to the external environment under specified design conditions SIST EN 12828:2013+A1:2014
EN 12828:2012+A1:2014 (E) 8 [SOURCE: EN 12831:2003, 3.1.5] 3.1.5 external design temperature external air temperature which is used for the calculation of the design heat losses 3.1.6 external air temperature air temperature outside the building 3.1.7 frost inhibitor supplement to a heating medium lowering its freezing point 3.1.8 heat distribution system configuration of interconnected components for the dispersal of heat between the heat supply system and the heat emission system or any attached system 3.1.9 heated space room or enclosure which is to be heated to the specified internal design temperature 3.1.10 heat emission system configuration of interconnected components for the dispersal of heat to a heated space 3.1.11 heat gains quantity of heat generated within or entering into a heated space from heat sources other than the heating system 3.1.12 heating period time during which heating is required to maintain the internal design temperature 3.1.13 heat supply system configuration of interconnected components/appliances for the supply of heat to the heat distribution system 3.1.14 internal design temperature operative temperature at the centre of the heated space (between 0,6 m and 1,6 m height) used for calculation of the design heat losses 3.1.15 local control method of controlling the heat flow to a heat emission system by changing the flow rate or the flow temperature locally on the basis of the temperature of the heated space 3.1.16 open vented system heating system in which the heating medium is open to the atmosphere 3.1.17 maximum operating pressure maximum pressure at which the system, or parts of the system, is designed to operate SIST EN 12828:2013+A1:2014
EN 12828:2012+A1:2014 (E) 9 3.1.18 maximum operating temperature maximum temperature at which the system, or parts of the system, is designed to operate 3.1.19 operative temperature arithmetic average of the internal air temperature and the mean radiant temperature 3.1.20 pressure limiter automatic operating device that causes shutdown and lock out of the heat supply when the maximum operating pressure of the heating medium is exceeded 3.1.21 sealed system heating system in which the heating medium is closed to the atmosphere 3.1.22 safety temperature lockout device device that causes safety shutdown and non-volatile lockout of the heat supply so as to prevent the water temperature exceeding a preset limit 3.1.23 temperature controller automatic operating device that causes shutdown of the heat supply when the set operating temperature of the heating medium is exceeded Note 1 to entry: The heat supply will be restored automatically when the temperature of the heating medium falls below the set operating temperature. 3.1.24 timing control method of controlling the heat flow to a heat emission system by using a timed program for starting and shutdown of the heat flow 3.1.25 water level limiter automatic operating device that causes shutdown and lock out of the heat supply when the set minimum water level of the heating medium is reached 3.1.26 zone space or groups of spaces with similar thermal characteristics 3.1.27 zone control local control of a zone consisting of more than one space 3.1.28 nominal heat output -N value of the thermal power output of the heat generator as declared by the manufacturer 3.1.29 efficiency ratio of the heat output to the heat input, expressed in % SIST EN 12828:2013+A1:2014
EN 12828:2012+A1:2014 (E) 10 3.1.30 pressurisation system system equipment (membrane expansion vessels, compressor-controlled pressurisation units and pump-controlled pressurisation units) for pressure maintenance in closed heating systems Note 1 to entry: The equipment provides to maintain the system pressure between defined limits and ensures the required minimal working pressure of the heating system. The equipment holds the accruing expansion water when the system water is heated and restores the volume when the heating system is cooling down and contracting. Due to the design of construction the expansion system simultaneously protects the expansion water from corrosion producing ingress of oxygen. 3.1.31 maximum system safety temperature highest temperature any component of the heating system can accommodate 3.1.32 lockout default condition resulting in a shutdown of the system and requiring a manual reset Note 1 to entry: The intention of a lockout is to require the operator to investigate and eliminate the cause of the lockout. 3.1.33 response overpressure pressure at which a safety valve opens at operating conditions 3.2 Symbols Table 1 — Symbols used in the standard Symbol Description Unit Amin narrowest flow section of a safety valve mm2 de external pipe diameter mm dfe minimum internal diameter of the feed and expansion pipe mm din nominal size of the safety valve’s inlet
dmin narrowest flow diameter upstream of the valve seat mm dout nominal size of the safety valve’s outlet
ds minimum internal diameter of the safety pipe mm e expansion coefficient
fAS design facto
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