Equipment for commercial kitchens - Components for ventilation in commercial kitchens - Part 3: Kitchen ventilation ceilings - Design and safety requirements

This standard applies to kitchen ventilation ceilings (hereinafter called "ceilings") in kitchens and other
companiesthe processing foodstuffs intended for commercial use from their nature and finish. It does not
apply to household kitchens.
This standard stipulates the requirements covering the construction and operation, including the technical
safety, ergonomic and hygienic features and their testing.
Unless otherwise specified, the requirements of this standard will be checked by way of inspection and/or
measurement.
Additional or alternative national regulations on installation, appliance requirements and inspection,
maintenance, operation have to be complied with.

Großküchengeräte - Einrichtungen zur Be- und Entlüftung von gewerblichen Küchen - Teil 3: Küchenlüftungsdecken

Diese Norm gilt für Küchenlüftungsdecken (im Weiteren Decken benannt) in Küchen und anderen lebensmittelverarbeitenden Betrieben, die nach Art und Ausführung für den gewerbsmäßigen Gebrauch bestimmt sind. Sie gilt nicht für Haushaltküchen.
Diese Norm legt Anforderungen an die Bau- und Betriebsweise, einschließlich der sicherheitstechnischen, ergonomischen, hygienischen Merkmale und ihre Prüfung fest.
Sofern nicht anders festgelegt werden die Anforderungen durch Besichtigung und/oder Nachmessen geprüft.
Ergänzende oder alternative Nationale Verordnungen für Installation, Anforderungen; Inspektion und Wartung müssen erfüllt werden.

Equipement pour cuisines professionnelles - Eléments de ventilation pour cuisines professionnelles - Partie 3: Plafonds ventilés de cuisine - Conception et exigences de sécurité

La présente norme s'applique aux plafonds ventilés de cuisines (désignés ci-après « plafonds ») installés dans les cuisines et autres installations de transformation des produits alimentaires destinées à un usage commercial de par leur nature et leur finition. Elle ne s'applique pas aux cuisines domestiques.
La présente norme stipule les exigences relatives à la construction et au fonctionnement, y compris les caractéristiques techniques de sécurité, d'ergonomie et d'hygiène, ainsi que les essais correspondants.
Sauf spécification contraire, les exigences de la présente norme seront vérifiées par inspection et/ou mesurage.
Les réglementations nationales complémentaires ou alternatives concernant l'installation, les exigences relatives aux appareils, l'inspection, la maintenance et le fonctionnement doivent être respectées.

Oprema za komercialne kuhinje - Sestavni deli za prezračevanje v komercialnih kuhinjah - 3. del: Prezračevanje kuhinjskih stropov - Projektiranje in varnostne zahteve

General Information

Status
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Current Stage
4098 - Decision to abandon - Enquiry
Due Date
08-Apr-2013
Completion Date
08-Apr-2013

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SLOVENSKI STANDARD
oSIST prEN 16282-3:2011
01-september-2011
2SUHPD]DNRPHUFLDOQHNXKLQMH6HVWDYQLGHOL]DSUH]UDþHYDQMHYNRPHUFLDOQLK
NXKLQMDKGHO3UH]UDþHYDQMHNXKLQMVNLKVWURSRY3URMHNWLUDQMHLQYDUQRVWQH
]DKWHYH

Equipment for commercial kitchens - Components for ventilation in commercial kitchens -

Part 3: Kitchen ventilation ceilings - Design and safety requirements

Großküchengeräte - Einrichtungen zur Be- und Entlüftung von gewerblichen Küchen -

Teil 3: Küchenlüftungsdecken

Equipement pour cuisines professionnelles - Eléments de ventilation pour cuisines

professionnelles - Partie 3: Plafonds ventilés de cuisine - Conception et exigences de

sécurité
Ta slovenski standard je istoveten z: prEN 16282-3
ICS:
91.140.30 3UH]UDþHYDOQLLQNOLPDWVNL Ventilation and air-
VLVWHPL conditioning
97.040.99 Druga kuhinjska oprema Other kitchen equipment
oSIST prEN 16282-3:2011 en,fr,de

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

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oSIST prEN 16282-3:2011
---------------------- Page: 2 ----------------------
oSIST prEN 16282-3:2011
EUROPEAN STANDARD
DRAFT
prEN 16282-3
NORME EUROPÉENNE
EUROPÄISCHE NORM
July 2011
ICS 97.040.99
English Version
Equipment for commercial kitchens - Components for ventilation
in commercial kitchens - Part 3: Kitchen ventilation ceilings -
Design and safety requirements

Equipement pour cuisines professionnelles - Eléments de Großküchengeräte - Einrichtungen zur Be- und Entlüftung

ventilation pour cuisines professionnelles - Partie 3: von gewerblichen Küchen - Teil 3: Küchenlüftungsdecken

Plafonds ventilés de cuisine - Conception et exigences de
sécurité

This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee CEN/TC 156.

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, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland 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
Management Centre: Avenue Marnix 17, B-1000 Brussels

© 2011 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 16282-3:2011: E

worldwide for CEN national Members.
---------------------- Page: 3 ----------------------
oSIST prEN 16282-3:2011
prEN 16282-3:2011 (E)
Contents Page

Foreword ..............................................................................................................................................................3

1 Scope ......................................................................................................................................................4

2 Normative references ............................................................................................................................4

3 Terms and definitions ...........................................................................................................................5

4 Designs of ceilings ................................................................................................................................8

5 Construction and function ....................................................................................................................9

5.1 General remarks.....................................................................................................................................9

5.2 Features of ceiling components ...........................................................................................................9

5.3 Air supply (into the kitchen) .................................................................................................................9

5.4 Air exhaust .......................................................................................................................................... 10

5.5 Materials and their surfaces for ceilings .......................................................................................... 11

5.6 Aerosol separator ............................................................................................................................... 13

5.7 Baffle plates ......................................................................................................................................... 13

5.8 Lighting ................................................................................................................................................ 13

5.9 Integrated cleaning device ................................................................................................................. 14

5.9.1 General remarks.................................................................................................................................. 14

5.9.2 Integrated cleaning device using water ........................................................................................... 15

6 Technical safety requirements .......................................................................................................... 15

6.1 General remarks.................................................................................................................................. 15

6.2 Air chamber, housing and box .......................................................................................................... 15

6.3 Separator – installation, dismantling and maintenance ................................................................. 15

6.4 Special requirements of open-construction ceilings ...................................................................... 15

6.5 Suspension height .............................................................................................................................. 16

6.6 Ceiling installation .............................................................................................................................. 16

6.7 Exhaust air connection ...................................................................................................................... 16

6.8 Air flow control devices ..................................................................................................................... 16

6.9 Electrical equipment ........................................................................................................................... 16

6.10 Earth bonding ...................................................................................................................................... 17

6.11 Fire suppression system ................................................................................................................... 17

6.12 Switching the ventilation system in the event of fire in the kitchen ............................................. 17

6.13 Gas interlock ....................................................................................................................................... 17

7 Ergonomic requirements and testing ............................................................................................... 17

8 Hygienic requirements ....................................................................................................................... 17

8.1 General remarks.................................................................................................................................. 17

8.2 General hygienic requirements ......................................................................................................... 17

8.3 Aerosolate removal elements ............................................................................................................ 18

8.4 Cleaning ............................................................................................................................................... 18

9 Instructions ......................................................................................................................................... 18

9.1 Installation instructions ..................................................................................................................... 18

9.2 Operating instructions ....................................................................................................................... 19

10 Marking ................................................................................................................................................ 20

Bibliography ..................................................................................................................................................... 21

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oSIST prEN 16282-3:2011
prEN 16282-3:2011 (E)
Foreword

This document (prEN 16282-3:2011) has been prepared by Technical Committee CEN/TC 156 “Ventilation for

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

The activities of CEN/TC 156, WG 14, cover the calculation of the air volume and the design and testing of

major components of ventilation equipment for commercial kitchens.
The structure of the standard series is as follows:

prEN 16282 Equipment for commercial kitchens – Components for ventilation in commercial kitchens

 Part 1: General requirements including calculation method
 Part 2: Kitchen ventilation hoods; Design and safety requirements
 Part 4: Air inlets and outlets; Design and safety requirements
 Part 5: Air duct; Design and dimensioning
 Part 6: Aerosol separators; Design and safety requirements
 Part 7: Installation and use of fixed fire suppression systems
 Part 8: Installation for treatment of cooking fumes; Requirements and testing

 Part 9: Ventilation of buildings – capture and containment performance of extraction systems for

commercial kitchen – test methods
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oSIST prEN 16282-3:2011
prEN 16282-3:2011 (E)
1 Scope

This standard applies to kitchen ventilation ceilings (hereinafter called "ceilings") in kitchens and other

companiesthe processing foodstuffs intended for commercial use from their nature and finish. It does not

apply to household kitchens.

This standard stipulates the requirements covering the construction and operation, including the technical

safety, ergonomic and hygienic features and their testing.

Unless otherwise specified, the requirements of this standard will be checked by way of inspection and/or

measurement.

Additional or alternative national regulations on installation, appliance requirements and inspection,

maintenance, operation have to be complied with.
2 Normative references

The following referenced documents are indispensable for the application 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.

prEN 16282-1, Equipment for commercial kitchens – Components for ventilation in commercial kitchens – Part

1: General requirements including calculation method

prEN 16282-2, Equipment for commercial kitchens – Components for ventilation in commercial kitchens –

Part 2: Kitchen ventilation hoods; Design and safety requirements

prEN 16282-4, Equipment for commercial kitchens – Components for ventilation in commercial kitchens – Part

4: Air inlets and outlets; Design and safety requirements

prEN 16282-5, Equipment for commercial kitchens – Components for ventilation in commercial kitchens –

Part 5: Air duct; Design and safety requirements

prEN 16282-6, Equipment for commercial kitchens – Components for ventilation in commercial kitchens –

Part 6: Aerosol separators; Design and safety requirements

prEN 16282-7, Equipment for commercial kitchens – Components for ventilation in commercial kitchens –

Part 7: Installation and use of fixed fire suppression systems

prEN 16282-8, Equipment for commercial kitchens – Components for ventilation in commercial kitchens –

Part 8: Installation for treatment of cooking fumes; Requirements and tests

prEN 16282-9, Ventilation of buildings – capture and containment performance of extraction systems for

commercial kitchen – test methods

EN 573-3, Aluminium and aluminium alloys - Chemical composition and form of wrought products - Part 3:

Chemical composition.

EN 1825-2, Grease separators - Part 2: Selection of nominal size, installation, operation and maintenance

EN 10088-1, Stainless steels - Part 1: List of stainless steels

EN 12464-1, Light and lighting - Lighting of work places - Part 1: Indoor work places

EN 12665, Light and lighting - Basic terms and criteria for specifiying lighting requirements

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oSIST prEN 16282-3:2011
prEN 16282-3:2011 (E)
Standards of the series
EN 50164, Lightning Protection Components (LPC).

EN 50274, Low-voltage switchgear and controlgear assemblies - Protection against electric shock - Protection

against unintentional direct contact with hazardous live parts
EN 60204-1, Electrical equipment of machines - Part 1: General requirements
EN 60529, Degrees of protection provided by enclosures (IP code)

EN ISO 3274, Geometrical Product Specifications (GPS) - Surface texture: Profile method - Nominal

characteristics of contact (stylus) instruments

EN ISO 4287, Geometrical product specification (GPS) - Surface texture: Profile method - Terms, definitions

and surface texture parameters

EN ISO 4288, Geometrical Product Specifications (GPS) - Surface texture: Profile method - Rules and

procedures for the assessment of surface texture

EN ISO 13565-1, Geometrical Product Specifications (GPS) - Surface texture: Profile method - Surfaces

having stratified functional properties - Part 1: Filtering and general measurement conditions

EN ISO 13565-2, Geometric product specifications (GPS) – Surface texture: profile method - surfaces having

stratified functional properties - Part 2: Height characterisation using the linear material ratio curve

HD 22, Rubber insulated cables of rated voltages up to and including 450/750 V

Regulation 1935/2004/EC, Materials and articles intended to come into contact with food and repealing

Directives 80/590/EEC and 89/109/EEC
3 Terms and definitions

For the purposes of this European Standard, the following terms and definitions apply.

3.1
kitchen ventilation ceiling

ventilation system that covers either the entire ceiling or only the active cooking area of a kitchen. This

element incorporates the air inlets, exhaust air outlets (including grease filters), and light fittings. It can be

equipped with integrated hoods in accordance with prEN 16282-2.
3.2
kitchen

rooms and parts of a building in which food is stored, meals are prepared, given out and distributed as well as

where crockery and appliances are being cleaned
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oSIST prEN 16282-3:2011
prEN 16282-3:2011 (E)
3.3
show kitchen area

part of a room in which food is stored, meals are prepared, given out and distributed as well as where

crockery and appliances are being cleaned
3.4
air inlets and outlets
3.4.1
air inlet

terminal element of a ventilation system in commercial kitchens for controlled supplytreated air, through the

opening
3.4.2
air outlet

ceiling installation element without aerosol separation function for flush installation with added air collection

box and air duct connecting branches or for direct installation into existing exhaust air ducts. With easy-to-

operate regulation device. With easy-to-remove front panel for regular cleaning
3.5
ceiling panel

fixed or removable elements of a ceiling installed horizontally, vertically or at any angle on a sub-construction

3.6
aerosolate (cooking fumes)
separated aerosol (in this standard, the separated grease/oil/water mixture)
3.7
aerosolate collection channel system

channel system to take parts separated from the exhaust air and for controlled removal of liquid components

and of cleaning fluid
3.8
removal device

device used to remove aerosolate and cleaning fluid at the lowest point of the channel system. Drain cocks,

stoppers, drawers (pots) or water-removal lines connected firmly with the channel system can be used

3.9
separator

device in accordance with 3.8.1 to 3.8.2 for separation of air-borne solid or liquid particles

3.9.1
aerosol separator

device for efficient separation of air-borne solid or liquid particles. It is based on the effect of forces

(mechanical forces or electric field forces), which lead to a deflection of the particles from the flow path

3.9.2
filter

specific design of storage separators comprising an ordered and/or unordered structure of a number of

individual fibres/wires (e.g. fabric filters) or porous surfaces/bodies (e.g. activated carbon)

3.10
function gap
aerosol separator in the ceiling, frequently as a longitudinal section
3.11
baffle plates

plate used to compensate air volume flows of the individual aerosol separators and the defined arrangement

of aerosol separators (focal points of suction removal)
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oSIST prEN 16282-3:2011
prEN 16282-3:2011 (E)
3.12
supply air field
area in ceilings for insertion of supply air
3.13
exhaust air field
area in ceilings for collection of exhaust air
3.14
air chamber

enclosed area with positiv pressure for distribution of supply air or negative pressure for collection of exhaust

air
3.15
ceiling pressure room

air chamber formed by the ceiling of the building, upper parts of the limiting walls or vertical bulkheads and

ceiling panels or air in-/outlet areas
3.16
air housing

enclosed air chamber formed by horizontal bulkheads, vertical bulkheads and ceiling panels or air in-/outlet

areas
3.17
plenum chamber

enclosed component for supply and exhaust air – integrated into the ceiling – with positiv pressure for

distribution of supply air or negative pressure for collection of exhaust air
3.18
exhaust air connector

connection element of the air chamber or the plenum chamber to the exhaust air line in closed ceiling system

of the ceiling (see 3.21)
3.19
open ceiling system

ceiling system in which the supply and/or exhaust air is guided – totally or partly – via a ceiling pressure room.

3.20
closed ceiling system

ceiling system in which the supply and/or exhaust air is guided via an air housing or a plenum chamber

3.21
area ventilation
ceiling system in which supply and/or exhaust air fields are used
3.22
points of exhaust

concentrated exhaust outlet in ceilings used above catering equipment with significant emissions

3.23
exhaust air connection
connection between the air housing and the ducts
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oSIST prEN 16282-3:2011
prEN 16282-3:2011 (E)
4 Designs of ceilings
Ceiling designs and their classification are shown in Table 1:

The following text shows example of current ceiling configuration and design criteria, but manufacturers are

free to use alternative designs and configuration, provided, that the product/equipment comply with the

essential requirements of the relevant directives and/or national regulations.
Table 1 — Examples for different ceiling design
Design Schematic portrayal Standard designation
EN Classifica
Designations
number tion
exhaust air
Kitchen
Open ceiling system with
supply air ventilation EN 18869 -C1
ceiling pressure room
ceiling
exhaust air
Kitchen
Closed ceiling system
ventilation EN 18869 -C2
with air housing
supply air
ceiling
exhaust air
Kitchen
Closed ceiling system
ventilation EN 18869 -C3
supply air
with plenum chamber
ceiling

EXAMPLE The designation of a kitchen ventilation ceiling on the supply air side in open ceiling system with ceiling

pressure room (supply air C1), on the exhaust air side with closed ceiling system with plenum chamber (exhaust air C3):

Kitchen ventilation ceiling EN XXX - supply air C1 – exhaust air C3
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oSIST prEN 16282-3:2011
prEN 16282-3:2011 (E)
5 Construction and function
5.1 General remarks

Aerosol-loaded exhaust air from kitchens such as cooking areas, rooms for portioning out, meal distribution

areas, meal serving areas (also in the dining hall), crockery and washing-up rooms has to be treated prior to

entering the air duct using effective aerosol separation equipment.

In commercial kitchens, hoods in accordance with prEN 16282-2 or ceilings in accordance with DIN EN XXX-3

are to be used for ventilation.

Ceilings shall be arranged over the entire area of the rooms in question. At leastshow kitchen areas shall be

covered by the ventilated ceiling. For ceilings materials shall be used according to Table 2.

It is recommended, that a secure sensor port which can be easily accessed once installed should be provided

to measurethe differential pressure in the outgoing air area. The default dimension for this port is either an

external diameter of 4 mm or a round sensor aperture with a diameter of 12 mm.
5.2 Features of ceiling components

The flow openings for the exhaust air in the ceiling pressure room are preferably to be arranged horizontally.

Bulkheads shall masmooth-surfaced, pressure-stable, air-tight and also tight against aerosolate for the

exhaust air area.

Supply air housings/plenum chambers and exhaust air housings/plenum chambers shall be provided with

volume flow setting devices on the connections for even distribution/correct collection of exhaust air.

5.3 Air supply (into the kitchen)

Supply air fields have to be equipped with removable air inlets for cleaning and access to duct work.

Air flow adjustment devices have to be provided and shall be accessible after removing air inlets.

The supply air from the ceiling shall be inserted with low induction. Supply air inlets shall be arranged in such

a way that undisturbed collection of the rising thermal flow is ensured. Disturbance of the thermal flow by

supply air shall be avoided prEN 16282-1 has to be fulfilled.
Supply air fields can be arranged within the ceiling or separately.

Air supply fields shall not be located above thermal cooking equipment taking into account the overhang

according to figure 1.
Air velocities at the face of a bellmouth shall not exceed 3 m/s.

An air supply area is limited by a collateral minimum distance of 1.5 m from the thermal appliances.

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oSIST prEN 16282-3:2011
prEN 16282-3:2011 (E)
Key
1 Extract channel
2 Supply channel
3 Supply channel

Figure 1 — Example for a flat exhaust ceiling part with horizontal directional air

5.4 Air exhaust

The arrangement of the exhaust parts of the ceiling has to prevent the condensation on the underside in

proper use.

This requirement can be fulfilled by using concave ceiling elements or ceiling coatings and manifest

aerosolate collection channel systems at low contact points of the aforementioned parts so as to ensure that

aerosolate is discharged efficiently or in another way by a suitable design or construction.

If flat exhaust ceiling elements are used any device (e.g. a horizontal directional air) shall ensure the

prevention of condensation on the underside.

Aerosolate collection channel systems shall be built in such a way that condensation on the underside is

prevented in normal use.

The outer dimensions of ceilings are determined by the dimensions of the devices/device lines to be found

underneath the ceiling.
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oSIST prEN 16282-3:2011
prEN 16282-3:2011 (E)
All dimensions in metres
Key
a installation height H
b height of the equipment
α angel 20°
Figure 2 — Ceiling dimensions

The projections are to be selected in such a way that the flow of thermal air is completely collected and is not

transported back into working areas via the supply air.

Above vapour-intensive devices, there may be concentrated suction removal via focal points.

5.5 Materials and their surfaces for ceilings

The materials used should be rot proof, non porous, wear resistant, inert to foods and beverages as well as to

detergents and disinfectants.

Materials such as e.g. glass wool rock wool, which can be used as components shall never come into contact

with food, and it shall never be possible for kitchen staff to inhale them.
Manufacturers are required to use the materials shown in Table 2:
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oSIST prEN 16282-3:2011
prEN 16282-3:2011 (E)
Table 2 — Materials
Component element/part Material Surface
Fittings stainless steel
aluminium anodised
steel galvanised
Sub-construction stainless steel
steel galvanised
Bulkheads stainless steel
aluminium blank
aluminium anodised or powder-coated
Air chamber stainless steel
aluminium blank
aluminium anodised or powder-coated
steel galvanised
Ceiling pressure room stainless steel
aluminium blank
aluminium anodised or powder-coated
steel galvanised
concrete see 6.4
Installations visible on the room stainless steel brushed or ground or powder-
side such as channel sections, wall coated
sections and other bearing sections aluminium anodised or powder-coated
and bearing heads

Ceiling cassettes, ceiling panels stainless steel brushed, ground or powder-coated

and ceiling coatings anodised or powder-coated
aluminium powder-coated
hot-aluminised steel
a d
Exhaust and supply air boxes stainless steel brushed or ground
steel galvanised
aluminium blank
aluminium anodised or powder-coated
a b
Aerosol separators stainless steel blank
stainless steel brushed
stainless steel polished
stainless steel powder-coated
aluminium anodised or powder-coated
hot-aluminised steel powder-coated
Aerosol collecting channel stainless steel brushed
stainless steel polished
stainless steel powder-coated
aluminium anodised or powder-coated
in the areaattention to problemwith corrosion

in production kitchens, anodised or powder-coated aluminium is not admissible. The exceptions to this rule, are extruded profiles

which, however, must not be used in the form of separating modules (Aerosol separators)

if non-visible area
in use as a source passage, stainless steel is to be used exclusively
Other materials are possible but there is no food hygiene risk.
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oSIST prEN 16282-3:2011
prEN 16282-3:2011 (E)
All national food-hygienic regulations have to be complied with.

As regards stainless steel, material No. 1,4301 as per EN 10088-1 or higher quality stainless steel is to be

used.

Surfaces of stainless steel may only manifest a surface roughness Ra of 1.1 µm measured in accordance with

EN ISO 3274, EN ISO 4287, EN ISO 4288, EN ISO 13565-1 and EN ISO 13565-2. The surface is to be

produced with an even surface picture.

For aluminium blank, material No. 3.3535 (AlMg3) as per EN 573-3 or higher quality aluminium alloys are to

be used.selected.selected

The material is to be strong enough to prevent the ceiling from being warped or distorted. To fulfil that, the

material of all components except the separator should have a minimum thickness of 1.0 mm.

If powder coating is used, it shall have a minimum thickness of 80 µm.
5.6 Aerosol separator

Separators of differing finishes and sizes shall have an identification which ensures that they are inserted into

the ceiling at the planned position after cleaning. The identification of the ceiling side can be done when the

ceiling is put into operation.

The design of the aerosol separator shall result in a self-draining effect of the aerosolate and avoid dripping of

aerosolate onto areas of the kitchen underneath. If required, information shall be included in the installation

instructions if aerosol separators have to be installed at a certain angle to the horizontal in order to ensure this

self-draining effect.

In particular, aerosol separators should be designed in such a way that aerosolate does not remain in the

aerosol separation area, i.e. that the aerosol separator does not have a storage effect.

Aerosolate collection devices can be integrated directly on the aerosol separator. However, the aerosol

collection devices may not lead to a build up of aerosolate into the aerosol separator. If necessary, matching

information shall b
...

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