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
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.
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
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
Control system classification . 29 A.1 Control system classification . 29 SIST EN 12828:2013+A1:2014
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
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
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 factor for other attached systems
fDHW design factor for domestic hot water systems
fHL design factor for the heat load
fnrbl fraction of heat emission, considered as wasted;
hst static height bar hWin window height m I operational parameter C„s/year„109 K constant kW/mm2 Kdr specified reduced discharge coefficient for gases/vapours / SIST EN 12828:2013+A1:2014
thermal transmittance of the outside wall/window W/m²„K Vex expansion volume m3 VN nominal volume of the expansion vessel to be determined m3 VN,min minimum nominal volume m3 VSystem total water content of the system m3 Vwr real water reserve volume in the pressure vessel used m3 Vwr,min minimal water reserve volume m3 x coefficient of pressure medium for saturated steam (h„mm2„bar)/kg . coefficient for valve design
utilisation degree
- heating capacity kW -AS capacity of other attached systems kW -DHW domestic hot water capacity kW -HL heat load capacity kW -N nominal heat output kW -SU capacity of the heat supply system kW λ thermal conductivity of the insulation material W/m„K ¡fil=density of water at the average system temperature during fill or make-up process kg/m3 ¡max density of water at the maximum set operating temperature kg/m3 ¡min density of water at the lowest system temperature kg/m3 ϑ temperature °C ϑa air temperature °C ϑd,e external design temperature °C SIST EN 12828:2013+A1:2014
Table 2 — Indices used in the standard Index Definition a air abs absolute AS other attached systems d design DHW domestic hot water systems dr reduced discharge e external env environment ex expansion fe feed and expansion fil filling fin final HL heat load in Inlet ini initial int internal j summation index L linear thermal transmission max maximum min minimum N nominal nrbl heat emission, considered as wasted o operative 0 minimum operational out outlet PAZ pressure limiter r radiant s safety SIST EN 12828:2013+A1:2014
4 System design requirements 4.1 Requirements for preliminary design information The heating system shall be designed, installed and operated in a way that does not damage the building or other installations and with due consideration to minimise energy use. The heating system shall be designed with due consideration to installation, commissioning, operation, maintenance and repair of components, appliances and the system. At the planning stage or during the progress of design work, the following items shall be agreed upon and documented: a) clarification of the responsibilities of the designer and the installer and whether or not a qualified operator is required; b) compliance with relevant local or statutory regulations; c) thermal characteristics of the building for calculation of heat requirements and possible improvements of energy conservation; d) external design temperature; e) internal design temperature; f) method of heat load calculation; g) energy source; h) position of the heat generator, bearing in mind access for maintenance, means of flueing and provision of combustion air; i) type, location, dimensions, construction and suitability of chimney and flue terminal, if required; j) location and size of fuel storage and access thereto, if required; k) consideration of solid fuel, ash removal and disposal; SIST EN 12828:2013+A1:2014
=-f-f-f-⋅+⋅+⋅HLHLDHWDHWSUASAS (1) where -SU is the capacity of the heat supply system in kilo watts (kW); HLf is the design factor for the heat load; -HL is the design heat load of the building in kilo watts (kW); DHWf is the design factor for domestic hot water systems; -DHW is the domestic hot water capacity in kilo watts (kW); fAS is the design factor for other attached systems; -AS is the capacity of other attached systems in kilo watts (kW). The design factors HLf,DHWfand ASf shall be determined on an individual basis subject to national limitations. It should be considered that the above heat load capacities may not be cumulative and the heat supply capacity should be determined based on agreed criteria for their demand. 4.3 Heat distribution 4.3.1 General The heat distribution system shall be designed to distribute the heat supply to the heat emission system and, if necessary, to any attached systems. The heat distribution system, including sub-circuits, shall be designed so as to enable hydraulic balancing. Consideration shall be given to any variety of demand for attached systems and to the quality of the water. Consideration shall be given to separate circuits for each type of heat emission system, the zoning requirement of buildings and the supply temperature and temperature difference of each heat emission system. Provision for filling, draining and venting shall be provided for each circuit. 4.3.2 Design criteria 4.3.2.1 Water requirements The composition of the water used in the heating system shall be such that the function of the system components is maintained in order to guarantee a safe and economic operation. Parameters for consideration may include: — the chemical characteristics of the water, e.g. pH, O2, chlorine and derivates, content of alkaline-earth- and hydrogen carbonate ions and carbonates; — the electrical conductivity. When necessary, supplements for water preparation, water treatment and/or anti-freeze, shall be used in accordance with the appropriate manufacturers’ requirements. SIST EN 12828:2013+A1:2014
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