SIST EN ISO 11855-1:2021/kFprA1:2023

Building environment design - Embedded radiant heating and cooling systems - Part 1: Definitions, symbols, and comfort criteria - Amendment 1 (EN ISO 11855-1:2021/FprA1:2023)

Umweltgerechte Gebäudeplanung - Flächenintegrierte Strahlungsheiz- und –kühlsysteme - Teil1: Begriffe, Symbole und Behaglichkeitskriterien - Änderung 1 (EN ISO 11855-1:2021/FprA1:2023)

No scope available

Conception de l'environnement des bâtiments - Systèmes intégrés de chauffage et de refroidissement par rayonnement - Partie 1: Définitions, symboles et critères de confort - Amendement 1 (EN ISO 11855-1:2021/FprA1:2023)

Načrtovanje notranjega okolja v stavbah - Vgrajeni sevalni ogrevalni in hladilni sistemi - 1. del: Definicije, simboli in merila za ugodje - Dopolnilo A1 (EN ISO 11855-1:2021/FprA1:2023)

General Information

• Status: Not Published
• Public Enquiry End Date: 26-Jan-2023
• ICS: 91.040.01 - Buildings in general
• ICS: 91.140.10 - Central heating systems
• ICS: 91.140.30 - Ventilation and air-conditioning systems
• Technical Committee: OGS - Heating for buildings
• Current Stage: 5020 - Formal vote (FV) (Adopted Project)
• Start Date: 06-Jul-2023
• Due Date: 24-Aug-2023
• Completion Date: 09-Aug-2023
• Ref Project: EN ISO 11855-1:2021/FprA1:2023 - Building environment design - Embedded radiant heating and cooling systems - Part 1: Definitions, symbols, and comfort criteria - Amendment 1 (ISO 11855-1:2021/FDAM 1:2023)

Relations

• Amends: SIST EN ISO 11855-1:2021 - Building environment design - Embedded radiant heating and cooling systems - Part 1: Definitions, symbols, and comfort criteria (ISO 11855-1:2021)
• Effective Date: 06-Oct-2021

Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN ISO 11855-1:2021/oprA1:2023
01-januar-2023
Načrtovanje notranjega okolja v stavbah - Vgrajeni sevalni ogrevalni in hladilni
sistemi - 1. del: Definicije, simboli in merila za ugodje - Dopolnilo A1 (ISO 11855-
1:2021/DAM 1:2022)
Building environment design - Embedded radiant heating and cooling systems - Part 1:
Definitions, symbols, and comfort criteria - Amendment 1 (ISO 11855-1:2021/DAM
1:2022)
Umweltgerechte Gebäudeplanung - Flächenintegrierte Strahlungsheiz- und
–kühlsysteme - Teil1: Begriffe, Symbole und Behaglichkeitskriterien - Änderung 1 (ISO
11855-1:2021/DAM 1:2022)
Conception de l'environnement des bâtiments - Systèmes intégrés de chauffage et de
refroidissement par rayonnement - Partie 1: Définitions, symboles et critères de confort -
Amendement 1 (ISO 11855-1:2021/DAM 1:2022)
Ta slovenski standard je istoveten z: EN ISO 11855-1:2021/prA1
ICS:
91.140.10 Sistemi centralnega Central heating systems
ogrevanja
91.140.30 Prezračevalni in klimatski Ventilation and air-
sistemi conditioning systems
SIST EN ISO 11855-1:2021/oprA1:2023 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN ISO 11855-1:2021/oprA1:2023

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SIST EN ISO 11855-1:2021/oprA1:2023
DRAFT AMENDMENT
ISO 11855-1:2021/DAM 1
ISO/TC 205 Secretariat: ANSI
Voting begins on: Voting terminates on:
2022-11-04 2023-01-27
Building environment design — Embedded radiant heating
and cooling systems —
Part 1:
Definitions, symbols, and comfort criteria
AMENDMENT 1
Conception de l'environnement des bâtiments — Systèmes intégrés de chauffage et de refroidissement par
rayonnement —
Partie 1: Définitions, symboles et critères de confort
AMENDEMENT 1
ICS: 91.040.01
This document is circulated as received from the committee secretariat.
THIS DOCUMENT IS A DRAFT CIRCULATED
FOR COMMENT AND APPROVAL. IT IS
ISO/CEN PARALLEL PROCESSING
THEREFORE SUBJECT TO CHANGE AND MAY
NOT BE REFERRED TO AS AN INTERNATIONAL
STANDARD UNTIL PUBLISHED AS SUCH.
IN ADDITION TO THEIR EVALUATION AS
BEING ACCEPTABLE FOR INDUSTRIAL,
TECHNOLOGICAL, COMMERCIAL AND
USER PURPOSES, DRAFT INTERNATIONAL
STANDARDS MAY ON OCCASION HAVE TO
BE CONSIDERED IN THE LIGHT OF THEIR
POTENTIAL TO BECOME STANDARDS TO
WHICH REFERENCE MAY BE MADE IN
Reference number
NATIONAL REGULATIONS.
ISO 11855-1:2021/DAM 1:2022(E)
RECIPIENTS OF THIS DRAFT ARE INVITED
TO SUBMIT, WITH THEIR COMMENTS,
NOTIFICATION OF ANY RELEVANT PATENT
RIGHTS OF WHICH THEY ARE AWARE AND TO
PROVIDE SUPPORTING DOCUMENTATION. © ISO 2022

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SIST EN ISO 11855-1:2021/oprA1:2023
ISO 11855-1:2021/DAM 1:2022(E)
DRAFT AMENDMENT
ISO 11855-1:2021/DAM 1
ISO/TC 205 Secretariat: ANSI
Voting begins on: Voting terminates on:

Building environment design — Embedded radiant heating
and cooling systems —
Part 1:
Definitions, symbols, and comfort criteria
AMENDMENT 1
Conception de l'environnement des bâtiments — Systèmes intégrés de chauffage et de refroidissement par
rayonnement —
Partie 1: Définitions, symboles et critères de confort
AMENDEMENT 1
ICS: 91.040.01
This document is circulated as received from the committee secretariat.
COPYRIGHT PROTECTED DOCUMENT
THIS DOCUMENT IS A DRAFT CIRCULATED
FOR COMMENT AND APPROVAL. IT IS
© ISO 2022
ISO/CEN PARALLEL PROCESSING
THEREFORE SUBJECT TO CHANGE AND MAY
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
NOT BE REFERRED TO AS AN INTERNATIONAL
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on STANDARD UNTIL PUBLISHED AS SUCH.
the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below
IN ADDITION TO THEIR EVALUATION AS
or ISO’s member body in the country of the requester. BEING ACCEPTABLE FOR INDUSTRIAL,
TECHNOLOGICAL, COMMERCIAL AND
ISO copyright office
USER PURPOSES, DRAFT INTERNATIONAL
CP 401 • Ch. de Blandonnet 8
STANDARDS MAY ON OCCASION HAVE TO
BE CONSIDERED IN THE LIGHT OF THEIR
CH-1214 Vernier, Geneva
POTENTIAL TO BECOME STANDARDS TO
Phone: [phone]
WHICH REFERENCE MAY BE MADE IN
Reference number
Email: [e-mail]
NATIONAL REGULATIONS.
Website: www.iso.org ISO 11855-1:2021/DAM 1:2022(E)
RECIPIENTS OF THIS DRAFT ARE INVITED
Published in Switzerland
TO SUBMIT, WITH THEIR COMMENTS,
NOTIFICATION OF ANY RELEVANT PATENT
RIGHTS OF WHICH THEY ARE AWARE AND TO
ii
  © ISO 2022 – All rights reserved
PROVIDE SUPPORTING DOCUMENTATION. © ISO 2022

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SIST EN ISO 11855-1:2021/oprA1:2023
ISO 11855-1:2021/DAM 1:2022(E)
Building environment design — Embedded radiant heating
and cooling systems —
Part 1:
Definitions, symbols, and comfort criteria
AMENDMENT 1

Foreword
Modify to the following:
The main changes compared to the previous edition are as follows:
— only references cited normatively were kept in Clause 2, the others were moved to Bibliography;
— in Clause 3, self-explanatory terms were removed, two similar terms representing the same concept
were unified into one term, and one term explaining two concepts were divided into two terms each
having one concept;
— editorial changes were performed.
— radiant systems are newly classified into types according to the differences in the calculation
method to determine the thermal output of the system.

4  Symbols and abbreviated terms
Modify the rows in Table 1 as follows:
S m Thickness of the screed (excluding the pipes in the system type I)
s In the system type II, thickness of thermal insulation from the outward edge
h
m
of the insulation to the inward edge of the pipes (see Figure 1)
s m Thickness of thermal insulation
ins
s In the system type II, thickness of thermal insulation from the outward edge
l
m
of the insulation to the outward edge of the pipes (see Figure 1)

5  Comfort criteria
5.5.3  Vertical air temperature difference
Figure 1 — Local thermal discomfort caused by vertical air temperature difference
Modify Figure 1 key as follows:
Key
X vertical air temperature difference between head and feet, K
Y percentage dissatisfied, %
Modify to add new Section 6 Classification of radiant system types as follows:
1
© ISO 2022 – All rights reserved

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SIST EN ISO 11855-1:2021/oprA1:2023
ISO 11855-1:2021/DAM 1:2022(E)

6  Classification of radiant system types
6.1  General
Radiant systems are classified into types according to the differences in the calculation method to
determine the thermal output of the system. The configuration of each system type was explained by
the main elements and layers constituting the system.
A radiant system types are composed of a combination of some, or all of the following main elements
and layers.
Ag: air gap
Ct: capillary tubes
In: thermal insulation layer Pe: Pipes or electric cables Pt: protection layer
Sc: structural construction
Sf: surface layer
St: structural layer
Su: surface layer
Tc: thermal conduction layer Td: thermal diffusion layer Tr: thermal reflection layer
Thermal diffusion layer also has a function of weight distribution in floor application. Depending on
whether the radiant system is heating or cooling, a heated or a cooled thermal medium is supplied
through pipes. The pipes shown in the classifications will be electric cables for electrical heating
systems.
The thermal output of a radiant system can be obtained from the thermal output calculation methods
according to radiant system types described in ISO 11855-2. For radiant systems that do not belong
to the radiant system type classification, thermal output can be obtained by measurement or detailed
calculation methods by finite difference or finite element method.
In the description of each radiant system type, the main characteristics of the system type, the variant
radiant systems belong to this type, thermal medium and installation method, methods for determining
the thermal output, application, and previous system types that belong to this type were included.
By clearly defining the radiant system types in the standard, the readers will be capable of achieving
their purposes in design, dimensioning, installation, and control of the system.
6.2  Radiant system type I, pipes directly included in a thermal diffusion layer
The system is a classic wet or dry system where the pipes enclosed by screed. Above the screed can be
arranged different floor coverings. The main feature of the construction is that the pipes are completely
embedded in a support layer. The system can be constructed with and without insulation layer.
For the determination of thermal output, a calculation method will be used if boundary conditions are
full filled. If boundary conditions are not provided
...