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CEN

EN 834:1994

(Main)

Heat cost allocators for the determination of the consumption of room heating radiators - Appliances with electrical energy supply

Heat cost allocators for the determination of the consumption of room heating radiators - Appliances with electrical energy supply

Heat cost allocators in accordance with this standard are instruments for the registration of the thermal output of radiators in consumer units. Consumer units are dwellings, office buildings, business premises, industrial plants in which the heat is supplied by a common central heating system or by a common district heating connection. A complete grouping of consumer units is called an account unit.

Heizkostenverteiler für die Verbrauchswerterfassung von Raumheizflächen - Geräte mit elektrischer Energieversorgung

Heizkostenverteiler nach dieser Norm sind Instrumente zur Erfassung der Wärmeabgabe von Heizkörpern in Nutzeinheiten. Unter Nutzeinheiten sind Wohnungs-, Büro-, Geschäfts-, Gewerbe- oder Industrieräumlichkeiten zu verstehen, deren Wärmeversorgung durch eine gemeinsame Zentalheizungsanlage oder über einen gemeinsamen Fernwärmeanschluß erfolgt. Die Gesamtheit der Nutzeinheiten bildet eine Abrechnungseinheit.

Répartiteurs de frais de chauffage pour enregister les valeurs de consommation de surfaces de corps de chauffe - Appareils avec une alimentation en énergie électrique

Les répartiteurs de frais de chauffage conformes à cette norme sont des instruments destinés à mesurer la chaleur émise par des radiateurs dans les unités d'utilisation. On entend par unités d'utilisation des locaux d'habitation, des locaux commerciaux, professionnels ou industriels et des bureaux, dont l'approvisionnement en chaleur se fait au moyen d'une installation de chauffage central ou par le truchement d'un raccordement commun à un système de chauffage urbain. L'ensemble des unités d'utilisation constitue une unité de calcul des frais.

Delilniki stroškov porabe toplote ogreval - Naprave z električnim napajanjem

General Information

Status
Withdrawn
Publication Date
18-Oct-1994
Withdrawal Date
06-Aug-2013
ICS
91.140.10 - Central heating systems
Technical Committee
CEN/TC 171 - Heat cost allocation
Drafting Committee
CEN/TC 171 - Heat cost allocation
Current Stage
9960 - Withdrawal effective - Withdrawal
Start Date
07-Aug-2013
Completion Date
07-Aug-2013
Ref Project
SIST EN 834:2002 - Heat cost allocators for the determination of the consumption of room heating radiators - Appliances with electrical energy supply

Relations

Replaced By
EN 834:2013 - Heat cost allocators for the determination of the consumption of room heating radiators - Appliances with electrical energy supply
Effective Date
22-Dec-2008

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Standards Content (Sample)


SLOVENSKI STANDARD
01-marec-2002
'HOLOQLNLVWURãNRYSRUDEHWRSORWHRJUHYDO1DSUDYH]HOHNWULþQLPQDSDMDQMHP
Heat cost allocators for the determination of the consumption of room heating radiators -
Appliances with electrical energy supply
Heizkostenverteiler für die Verbrauchswerterfassung von Raumheizflächen - Geräte mit
elektrischer Energieversorgung
Répartiteurs de frais de chauffage pour enregister les valeurs de consommation de
surfaces de corps de chauffe - Appareils avec une alimentation en énergie électrique
Ta slovenski standard je istoveten z: EN 834:1994
ICS:
91.140.10 Sistemi centralnega Central heating systems
ogrevanja
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

SIST
...

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Heat cost allocators for the determination of the consumption of room heating radiators - Appliances with electrical energy supply
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CEN/TC 171 origin - New Figure 1 so as to correct inconsistency in three language versions. No xml version as the mother standard EN 834:2013 is not available as an xml file.

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NOTE   See Clause 3 for a definition of the terms used below.
This European standard applies to heat cost allocators which are used to capture the proportionate thermal output of radiators in consumer units.
If an account unit comprises consumer units of different types (e.g. technically different types of heating systems or differences due to the consumer behaviour, e.g. industrial plants as opposed to private apartments), it could be necessary to divide this account unit into groups of users.
Heat cost allocators enable the determination of the heat consumption only of each radiator in a consumer unit as a share of the total heat consumption of the account unit or user group (see Clause 4); it is therefore necessary to determine this total heat consumption either by measuring the consumed fuel quantity or the amount of heat delivered (the latter by means of a heat meter, for example).
For the appropriate use of the heat cost allocators in accordance with this standard, the heating system needs to:
-   correspond to the state of the art at the time of installation of the heat cost allocators;
-   be operated in accordance with the state of the art (see A.2).
This standard specifies that heat cost allocators shall not be used for heating systems where the temperature of the heating system falls below or exceeds the temperature limits of the heat cost allocators, where the rating factor for the thermal output, KQ, cannot be clearly specified or where the heating surface is inaccessible. This applies usually to the following heating systems:
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ak)   appliances that are intended to burn natural gases of the second family where hydrogen is added to the natural gas;
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This document specifies the requirements and tests methods concerning the construction, safety, fitness for purpose, and rational use of energy, as well as the classification and marking of hybrid units.
A hybrid unit is composed of:
-   a gas boiler as a heat generator which is able to supply the heat demand in all operating conditions;
-   an electrical air-to-water heat pump, as a heat generator, which does not have to meet the heat demand in all operating conditions;
-   a control unit (see definition 3.1.10).
A hybrid unit can include the facility to produce hot water, either by the instantaneous or storage principle, the whole being marketed as a single unit.
A gas boiler as part of a hybrid unit covered by this document is a gas-fired central heating boiler from the types C1 up to C9 and the types B2, B3 and B5, according to the classification in EN 1749:2020:
a)   that have a nominal heat input (on the basis of gross calorific value) not exceeding 400 kW;
b)   that use one or more combustible gases of the three gas families at the pressures stated in EN 437:2021;
c)   where the temperature of the heat transfer fluid does not exceed 105 °C during normal operation;
d)   where the maximum operating pressure in the water circuit does not exceed 6 bar;
e)   which are classified as a gas-fired central heating boiler;
f)   which are intended to be installed either indoors or outdoors in a partially protected place;
g)   which are designed for either sealed water systems or for open water systems.
This document provides requirements for boilers with known constructions.
NOTE 1   For boilers with any alternative constructions, which might not fully be covered by this document, the risk associated with this alternative construction needs to be assessed.
NOTE 2   An example of an assessment methodology, based upon risk assessment and which covers the essential requirements of the Gas Appliance Regulation UE/426/2016, is given in Clause 11.
This document does not cover all the requirements for:
aa)   appliances that are intended to be connected to gas grids where the quality of the distributed gas is likely to vary to a large extent over the lifetime of the appliance (see EN 15502-1:2021, Annex AB);
ab)   appliances using flue dampers;
ac)   appliances of the types B21, B31, B51, C21, C41, C51, C61, C71 and C81;
ad)   appliances incorporating flexible plastic flue liners;
ae)   appliances designed to become connected to a combined flue duct system.
af)   appliances of the types C(10),C(11), C(12) and C(13);
ag)   C7 appliances that have a nominal heat input (on the basis of net calorific value) exceeding 70 kW;
ah)   appliances intended to be connected to a flue having mechanical extraction;
ai)   surface temperatures of external parts particular to children and elderly people;
aj)   appliances that are intended to burn natural gases of the second family where hydrogen is added to the natural gas;
ak)   appliances equipped with an adaptive combustion control function (ACCF);
al)   boilers intended to be installed in areas accessible to elderly people and children.
This document specifies minimum operating requirements which ensure that the products are fit for the use designated by the technical instructions when used for space heating and/or DHW production.
This document is intended to be used in conjunction with:
ba)   the gas-fired boiler, the generic part EN 15502-1:2021 and specific parts FprEN 15502-2-1:2022 and FprEN 15502-2-2:2022;
bb)   the electrical heat pump, EN 14511-4:2018, EN 378-1:2016+A1:2020, EN 378-2:2016 and EN 14825:2022;
bc)   electrical safety, EN 60335-1:2012 , EN 60335-2-102:2016 and IEC 60335-2-40:2018;
bd)   for domestic hot water production, EN 13203-5:2022.

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