Smoke and heat control systems - Part 6: Specification for pressure differential systems - Kits

This document applies to pressure differential system kits and components, positioned on the market and intended to operate as part of a pressure differential system. The purpose of a pressure differential system is to prevent protected spaces from smoke spread by using pressure difference and airflow. This document specifies characteristics and test methods for components and kits for pressure differential systems to produce and control the required pressure differential and airflow between protected and unprotected space.

Rauch- und Wärmefreihaltung - Teil 6: Festlegungen für Differenzdrucksysteme - Bausätze

Dieses Dokument behandelt Bausätze für Differenzdrucksysteme, die im Handel erhältlich und für den Betrieb als Teil eines Differenzdrucksystems vorgesehen sind. Ein Differenzdrucksystem dient dazu, durch Druckdifferenz und Luftströmung zu verhindern, dass Rauch sich in geschützten Räumen ausbreitet. Diese Norm (EN 12101 6) legt die wesentlichen Eigenschaften und Prüfverfahren für Bauteile und Bausätze für Differenzdrucksysteme zur Erzeugung und Steuerung der erforderlichen Druckdifferenz und der Luftströmung zwischen geschützten und ungeschützten Räumen fest.

Systèmes pour le contrôle des fumées et de la chaleur - Partie 6 : Spécifications relatives aux systèmes à différentiel de pression - Kits

Le présent document s’applique aux kits et composants de systèmes à différentiel de pression mis sur le marché et destinés à être employés en tant que partie d’un système à différentiel de pression. L’objectif d’un système à différentiel de pression est d’empêcher la propagation de fumée dans des espaces protégés en utilisant le différentiel de pression et le flux d’air. Le présent document spécifie les caractéristiques et les méthodes d’essai des composants et des kits pour les systèmes à différentiel de pression afin de générer et de réguler le différentiel de pression et le flux d’air entre les espaces protégés et non protégés.

Sistemi za nadzor dima in toplote - 6. del: Sistemi za zagotovitev tlačnih razlik - Oprema

General Information

Status
Published
Current Stage
6060 - Definitive text made available (DAV) - Publishing
Due Date
13-Apr-2022
Completion Date
13-Apr-2022

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SLOVENSKI STANDARD
oSIST prEN 12101-6:2020
01-september-2020

Sistemi za nadzor dima in toplote - 6. del: Sistemi za zagotovitev tlačnih razlik -

Oprema

Smoke and heat control systems - Part 6: Specification for pressure differential systems -

Kits
Rauch- und Wärmefreihaltung - Teil 6: Festlegungen für Differenzdrucksysteme -
Bausätze

Systèmes pour le contrôle des fumées et de la chaleur - Partie 6 : Spécifications

relatives aux systèmes à différentiel de pression - Kits
Ta slovenski standard je istoveten z: prEN 12101-6
ICS:
13.220.20 Požarna zaščita Fire protection
oSIST prEN 12101-6:2020 en,fr,de

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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oSIST prEN 12101-6:2020
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oSIST prEN 12101-6:2020
DRAFT
EUROPEAN STANDARD
prEN 12101-6
NORME EUROPÉENNE
EUROPÄISCHE NORM
July 2020
ICS 13.220.99 Will supersede EN 12101-6:2005
English Version
Smoke and heat control systems - Part 6: Specification for
pressure differential systems - Kits

Systèmes pour le contrôle des fumées et de la chaleur - Rauch- und Wärmefreihaltung - Teil 6: Festlegungen

Partie 6 : Spécifications relatives aux systèmes à für Differenzdrucksysteme - Bausätze

différentiel de pression - Kits

This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee

CEN/TC 191.

If this draft becomes a European Standard, 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.

This draft European Standard was established by CEN 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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,

Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and

United Kingdom.

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.

Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without

notice and shall not be referred to as a European Standard.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels

© 2020 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 12101-6:2020 E

worldwide for CEN national Members.
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prEN 12101-6:2020 (E)
Contents Page

European foreword ...................................................................................................................................................... 3

Introduction .................................................................................................................................................................... 4

1 Scope .................................................................................................................................................................... 5

2 Normative references .................................................................................................................................... 5

3 Terms, definitions, symbols and abbreviated terms ......................................................................... 5

3.1 Terms, definitions and abbreviated terms ............................................................................................ 5

3.2 Symbols .............................................................................................................................................................. 7

4 Characteristics ................................................................................................................................................. 8

4.1 General................................................................................................................................................................ 8

4.2 Nominal activation conditions/sensitivity ............................................................................................ 9

4.3 Response delay (response time) ............................................................................................................. 10

4.4 Operational reliability ................................................................................................................................ 11

4.5 Effectiveness of smoke/hot gas extraction .......................................................................................... 12

4.6 Performance parameters under fire conditions ............................................................................... 13

4.7 Pressurization/depressurization performance ................................................................................ 13

4.8 Fire resistance – integrity (E) ................................................................................................................... 14

4.9 Fire resistance – insulation (I) ................................................................................................................. 15

4.10 Fire resistance – leakage (S) ..................................................................................................................... 16

4.11 Fire resistance – mechanical stability ................................................................................................... 16

4.12 Fire resistance – maintenance of cross section .................................................................................. 17

4.13 Durability ......................................................................................................................................................... 18

5 Test methods .................................................................................................................................................. 19

5.1 General.............................................................................................................................................................. 19

5.2 Nominal activation conditions/sensitivity .......................................................................................... 20

5.3 Response delay (response time) ............................................................................................................. 20

5.4 Operational reliability ................................................................................................................................ 21

5.5 Effectiveness of smoke/hot gas extraction .......................................................................................... 32

5.6 Performance parameters under fire conditions ............................................................................... 33

5.7 Pressurization performance ..................................................................................................................... 33

5.8 Fire resistance – Integrity (E) ................................................................................................................... 34

5.9 Fire resistance – Insulation (I) ................................................................................................................. 35

5.10 Fire resistance – smoke leakage (S) ....................................................................................................... 35

5.11 Fire resistance – mechanical stability ................................................................................................... 36

5.12 Fire resistance – maintenance of cross section .................................................................................. 36

5.13 Durability ......................................................................................................................................................... 37

6 Verification of performance ...................................................................................................................... 38

6.1 Type testing ..................................................................................................................................................... 38

6.2 Factory production control (FPC) ........................................................................................................... 40

7 Marking, labelling and packaging ........................................................................................................... 43

Annex A (normative) Examples of function principles of pressure differential kit types

(pressurization) ............................................................................................................................................ 44

Annex B (normative) Test method for hot gas control damper at elevated temperature ................ 53

Annex C (normative) Test method for powered smoke and heat exhaust ventilators with

frequency inverter and operated with variable speed at elevated temperature .................. 56

Annex D (normative) Installation and maintenance document ................................................................. 58

Bibliography ................................................................................................................................................................. 59

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oSIST prEN 12101-6:2020
prEN 12101-6:2020 (E)
European foreword

This document (prEN 12101-6:2020) has been prepared by Technical Committee CEN/TC 191 “Fixed

firefighting systems”, the secretariat of which is held by BSI.
This document is currently submitted to the CEN Enquiry.

This document together with prEN 12101-13 will replace EN 12101-6:2005, which will be withdrawn.

This document has the general title “Smoke and heat control systems” and consists of the following 13

parts:
— Part 1: Specification for smoke barriers;
— Part 2: Specification for natural smoke and heat exhaust ventilators;
— Part 3: Specification for powered smoke and heat exhaust ventilators;
— Part 4: Fire and smoke control installations – Kits;

— Part 5: Design and calculation for smoke and exhaust ventilation systems (published as CR 12101-5);

— Part 6: Specification for pressure differential systems – Kits;
— Part 7: Smoke control ducts;
— Part 8: Specification for smoke control dampers;
— Part 9: Control panels and emergency control panels;
— Part 10: Power supplies;
— Part 11: Smoke control in covered vehicle parks;
— Part 12: SHEVS – Time dependant Fires;

— Part 13: Pressure differential systems (PDS) design and calculation methods, acceptance testing,

maintenance and routine testing of installation.
EN 12101 is included in a series of European Standards planned to cover also:
a) Gas extinguishing systems (EN 12094 and ISO 14520);
b) Sprinkler systems (EN 12259);
c) Powder systems (EN 12416);
d) Explosion protection systems (EN 26184);
e) Foam systems (EN 13565);
g) Hose reel systems (EN 671);
h) Water spray systems (EN 14816).
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prEN 12101-6:2020 (E)
Introduction
Objectives of pressure differential systems

Pressure differential systems offer the facility of maintaining tenable conditions in protected spaces, for

example: escape routes, firefighting access routes, firefighting lift shafts, lobbies, staircases, and other

areas that require being kept free of smoke. It is necessary to determine not only where the fresh air

supply for pressurization is to be introduced into a building, but also where that air and smoke will

leave the building and what paths it will follow in the process. Similar considerations apply to

depressurization schemes, i.e. the route for the exhaust air, plus consideration for the inlet replacement

air and the paths it will follow.

The aim therefore is to establish a pressure gradient from the protected space to the unprotected space

(fire room) while the doors are closed, and an airflow while the doors are open.
Smoke control methods

The effect of the air movement forces, described above, are to create pressure differentials across the

partitions, walls and floors and can cause smoke to spread to areas remote from the fire source. The

techniques most commonly used to limit the degree of smoke spread, or to control its effects, are:

a) Pressurization;
b) Depressurization.
System components
A typical pressure differential system will comprise three basic components:
a) the means for providing supply air and to extract air;

b) the means for controlling the pressure difference between the area with higher pressure and the

adjoining area with lower pressure;

c) the means for releasing air flowing through the door between the area with higher pressure to

those with lower pressure (to prevent unwanted pressure build up in this area).

This document covers kits made up from items a) and b) only. The effect of item c) is considered only in

terms of the resistance to air flow that it exerts.
Installations of pressure differential systems (PDS) may comprise:
• fans (temperature rated) if necessary;
• air ducts to provide a passageway for the transmission of air or smoke;

• ventilation openings to provide leakage of air (including dampers, active or passive controlled);

• power supply;
• connecting cables;
• means of activation;
• means of pressure control;
• control panel;

• fire/smoke dampers in branches from the ductwork where the ductwork is situated outside the

protected enclosure;
• grilles and diffusers;
• door closers.
The design of pressure differential systems is covered in prEN 12101-13.
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oSIST prEN 12101-6:2020
prEN 12101-6:2020 (E)
1 Scope

This document applies to pressure differential system kits, positioned on the market and intended to

operate as part of a pressure differential system. The purpose of a pressure differential system is to

prevent protected spaces from smoke spread by using pressure difference and airflow. This document

specifies characteristics and test methods for components and kits for pressure differential systems to

produce and control the required pressure differential and airflow between protected and unprotected

space.
2 Normative references

The following documents are referred to in the text in such a way that some or all of their content

constitutes requirements of this document. For dated references, only the edition cited applies. For

undated references, the latest edition of the referenced document (including any amendments) applies.

EN 1363-1, Fire resistance tests — Part 1: General requirements

EN 12101-2, Smoke and heat control systems — Part 2: Natural smoke and heat exhaust ventilators

EN 12101-3, Smoke and heat control systems — Part 3: Specification for powered smoke and heat control

ventilators (Fans)
EN 12101-7, Smoke and heat control systems — Part 7: Smoke duct sections
EN 12101-8, Smoke and heat control systems — Part 8: Smoke control dampers

EN 13501-4, Fire classification of construction products and building elements — Part 4: Classification

using data from fire resistance tests on components of smoke control systems
EN ISO 13943, Fire safety — Vocabulary (ISO 13943)

EN 1366-10, Fire resistance tests for service installations — Part 10: Smoke control dampers

3 Terms, definitions, symbols and abbreviated terms
3.1 Terms, definitions and abbreviated terms

For the purposes of this document, the terms and definitions given in EN ISO 13943 and the following

apply.

ISO and IEC maintain terminological databases for use in standardization at the following addresses:

• IEC Electropedia: available at https://www.electropedia.org/
• ISO Online browsing platform: available at https://www.iso.org/obp
3.1.1
air inlet

connection to outside air which allows the entry of air from outside to the construction works

3.1.2
air release

means by which pressurizing air or a mixture of pressurizing air and smoke is able to escape from the

accommodation or other unpressurized space to outside the building
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prEN 12101-6:2020 (E)
3.1.3
control panel
multi-operational device to activate and/or control a PDS
3.1.4
depressurization

smoke control using pressure differentials between the protected space and the unprotected space with

a lower pressure in the unprotected space
3.1.5
over-pressure relief
provision for releasing excess pressurizing air from the pressurized space
3.1.6
over-pressure relief vent

device which opens automatically at a certain pressure difference (design pressure difference) to give a

free flow path from a pressurized space (e.g. a staircase or lift shaft) to the open air

3.1.7
pressure differential system
PDS

combination of at least one kit and additional components intended to produce pressure differential

and airflow between protected and unprotected spaces
3.1.8
pressurization

smoke control using pressure differentials between the protected space and the unprotected space with

a higher pressure in the protected space
3.1.9
test rig
test equipment used for testing the pressure differential system kit
3.1.10
pressure differential systems – kit
PDS kit

combination of at least two components which are necessary to produce and control the required

pressure differential and airflow-between protected and unprotected space

Note 1 to entry: The type of kit is dictated by the PDS design and objectives. Schematic overviews of different

types are given in Annex A.
3.1.11
active control

pressure control actuated from measured pressure and using external energy (e.g. motor driven

damper, frequency inverter-controlled fans, etc.)
3.1.12
barometric relief damper

damper being activated by local pressure difference between both sides of the damper blade(s) and

permits airflow to control pressure
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prEN 12101-6:2020 (E)
3.1.13
activation signal

signal to initiate from stand-by to the active mode of the pressure differential system

3.2 Symbols
The symbols and abbreviations below are used in the document:
Symbol Unit Description
measured air release volume flow rate from test room 1 (representing the
protected space in the building) to test room 2 (representing the
V m /h
unprotected space in the building) via open air release path during the test
(nominal value given by the manufacturer)
required leakage flow rate if necessary for the function of the PDS kit. If the
building leakages (always present) are at the same rate or larger, during the
test (nominal value given by the manufacturer), the component to produce
V m /h
the defined leakage is part of the PDS kit under test
m /h volume flow rate through temporary openings (e.g. open doors from
staircases on different levels from fire level, open escape/exit door) in case
of pressurization during the test (nominal value given by the manufacturer)
m /h volume flow rate through temporary openings (e.g. open doors from
 staircases on different levels from fire level, open escape/exit door) in case
of depressurization during the test (nominal value given by the
manufacturer)
m /h exhaust volume flow rate out of the test room 2 for depressurization and
combined systems
m /h required minimum leakage volume flow rate at nominal pressure difference
Nom
m /h lower limit of volume flow rate through air release
ar,ll 
VV= 09, *
ar,ll ar
 m /h
V supply air volume flow rate measured at inlet nozzle
m /h total controlled volume flow rate of the PDS kit as sum of flow rate air
  
V V V
release + flow rate through temporary openings (nominal value
TC ar TC
given by the manufacturer)
 m /h
V bypass air volume flow rate
Pa pressure differential between test room 1 and reference pressure (static
tr1
pressure in test hall)
Pa pressure differential between test room 2 and reference pressure (static
tr2
pressure in test hall)
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oSIST prEN 12101-6:2020
prEN 12101-6:2020 (E)
Symbol Unit Description
Pa nominal pressure differential to be maintained by the PDS kit with closed air
norm
release opening and closed temporary openings (static conditions)
∆p pressure difference across the open-air release path
Pa pressure difference exhaust path measured between test room 2 and
∆p exhaust fan (at depressurization kit), (nominal value given by the
manufacturer)
Pa ∗
∆p ∆p = 12, ∆P
Upper limit of nominal pressure differential
Nom,ul Nom,ul Nom
Time period needed to establish volume flow rate V (flow criteria – see
ar,ll
Figure 7)
Pressure stabilizing time period (pressure criteria - see 5.7)
time to establish volume flow rate in TCS cycle i
V ,i
pressure stabilizing time in TCS cycle i
p,i
fr s frequency of the frequency inverter from the PDS kit where equipped
s minimal frequency of the frequency inverter at the passed test with all
fr openings closed and at lowest required leakage – shall be stated in the test
min
report
s highest frequency of the frequency inverter at the passed test with air
fr release path and temporary opening open and at highest required leakage –
max
shall be stated in the test report
I A absorbed current of the fan (motor)
fan
TCS test cycle sequence
4 Characteristics
4.1 General

The kit shall be shown to be able to fulfil the specific pressure differential application that it is designed

to provide. To demonstrate this, certain components have their own requirements and will need to fulfil

these. Any component with no specific characteristics shown below shall be listed as part of the kit and

included in the kit testing.

• Where there is a need for air release to the outside or air supply into the building through an

opening (e.g. roof vent, windows, etc.) a natural smoke and heat exhaust ventilator shall be used;

• Where air volume and pressure are to be controlled using mechanical pressure relief a barometric

damper or controlled damper in accordance with this document shall be used;

• Where ambient air is to be supplied using fans, the fans shall be further shown to be in accordance

with this document;
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prEN 12101-6:2020 (E)

• Where air is to be extracted by the pressure differential systems this shall be done using powered

heat exhaust ventilators (smoke control fans);

• Where air is to be extracted using ductwork, the ductwork shall be smoke control duct (Builders

work shafts may be used as an option and this is not within the scope of this document);

• Where dampers are needed to open and close to provide a path for smoke to the outside and

maintain compartmentation, these shall be smoke control dampers;

• Where volume control around high temperature fans is to be provided using control dampers these

shall be hot gas control dampers in accordance with this document;
This section gives details of the characteristics and additional test details.
4.2 Nominal activation conditions/sensitivity
4.2.1 Kit

The PDS kit shall be activated automatically by smoke detectors and it shall be possible to trigger it

manually by an external switch.
The following proxy characteristics shall be taken into account:
a) the response time – see 4.3; and
b) the operational reliability – see 4.4.

In addition, the following components shall have their own characteristics when functioning as a part of

the kit.
4.2.2 Components
4.2.2.1 Natural smoke and heat exhaust ventilators

The characteristics for nominal activation conditions/sensitivity in EN 12101-2 shall be met before

inclusion in a kit – see 5.2.2.1.
4.2.2.2 Pressure control damper (e.g. barometric dampers, control dampers)
The following proxy characteristics shall be taken into account:
a) the response time – see 4.3; and
b) the operational reliability – see 4.4.
4.2.2.3 Fans
4.2.2.3.1 Ambient air supply fans
The following proxy characteristics shall be taken into account:
a) the response time – see 4.3; and
b) the operational reliability – see 4.4.
4.2.2.3.2 Smoke control fans (powered smoke and heat exhaust ventilators)

In addition to any response time required by the kit (4.3.1), the characteristics for nominal activation

conditions/sensitivity in EN 12101-3 shall be met before inclusion in a kit – see 5.2.2.3.2.

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4.2.2.4 Smoke control ducts

Smoke control ducts have no nominal activation conditions/sensitivity requirements as they have no

moving parts.
4.2.2.5 Smoke control dampers

The characteristics for nominal activation conditions/sensitivity in EN 12101-8 shall be met before

inclusion in a kit – see 5.2.2.5.
4.2.2.6 Hot gas control dampers
The following proxy characteristics shall be taken into account:
a) the response time – see 4.3; and
b) the operational reliability – see 4.4; and
c) characteristics as determined in Annex B.
4.3 Response delay (response time)
4.3.1 Kit
4.3.1.1 General
The proxy characteristics in 4.3.1.2 and 4.3.1.3 shall be taken into account.
4.3.1.2 Initial response time

The kit must achieve operating status within t ≤ 60 seconds after the activation signal. This shall be

tested in accordance with 5.4.1.
4.3.1.3 Response time of door opening and door closing

The kit shall achieve at least 90 % of the nominal airflow rate within 3 s of a door being fully opened

(opening angle 90°) in accordance with test method in 5.4.1.2.

The kit shall reach the nominal pressure differential in the protected space Δp ± 20 % within 3 s after

nom

a door to the unprotected space or a temporary opening is closed completely. The pressure differential

shall not exceed Δp = Δp * 1,2 for a time period of more than 3 s. This shall be demonstrated in

nom,ul nom
accordance with the test method in 5.4.1.

The kit shall stay in a stable operating condition even in the case of several door closing/opening cycles

in accordance with test method in 5.4.1.

In addition, the following components shall have their own requirements when functioning as a part of

the kit.
4.3.2 Components
4.3.2.1 Natural smoke and heat exhaust ventilators

The characteristics for response delay (response time) in EN 12101-2 shall be met before inclusion in a

kit – see 5.3.2.1.
4.3.2.2 Pressure control damper (e.g. barometric dampers, control dampers)

The overpressure device shall meet the response time characteristics as shown in 4.3.1 when tested as

part of the kit – see 5.3.2.2.
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4.3.2.3 Fans
4.3.2.3.1 Ambient air supply fans

The ambient supply fans shall meet the response time characteristics as shown in 4.3.1 when tested as

part of the kit – see 5.3.2.3.1.
4.3.2.3.2 Smoke control fans (powered smoke and heat exhaust ventilators)

In addition to any response time required by the kit (4.3.1), the characteristics for nominal activation

conditions/sensitivity in EN 12101-3 shall be met before inclusion in a kit – see 5.3.2.3.2.

4.3.2.4 Smoke control ducts

Smoke control ducts have no response delay requirements as they have no moving parts.

4.3.2.5 Smoke control dampers

The characteristics for response delay (response time) in EN 12101-8 shall be met before inclusion in a

kit – see 5.3.2.5.
4.3.2.6 Hot gas control dampers

The characteristics shown in Annex B shall be reported against the listed classifications. The damper

shall meet the requirements in 4.3.1 and move to the required position in less than 3 s (4.3.1) and be

proven that the average operation time as determined in Annex B at temperature is no more than 20 %

of that determined at ambient temperature.
4.4 Operational reliability
4.4.1 Kit

The following proxy characteristics shall be taken into account: the ability of the kit to fulfil the volume

flow rate and pressurization values as part of the functionality test – see 5.4.1.

Complete 10 000 cycles.

In addition, the following components shall have their own requirements when functioning as a part of

the kit.
4.4.2 Components
4.4.2.1 Natural smoke and heat exhaust ventilators

The characteristics for operational reliability in EN 12101-2 shall be met before inclusion in a kit – see

5.4.2.1.

4.4.2.2 Pressure control damper (e.g. barometric dampers, control dampers) dampers

The overpressure device shall meet the operational reliability as shown in 4.4.1 when tested as part of

the kit – see 5.4.2.2.
4.4.2.3 Fans
4.4.2.3.1 Ambient air supply fans

The ambient supply fans shall meet the operational reliability characteristics as shown in 4.4.1 when

tested as
...

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