OBO Bettermann EI30 User manual

OBO Bettermann Holding GmbH & Co. KG
Mounting
instructions
PYROLINE®Con PLC fire protection duct
EI30-EI90 classification according to EN 13501-2

© 2021 OBO Bettermann Holding GmbH & Co. KG
All the personal designations used in the document are to be considered gender-neutral.
PYROLINE® Con is a registered brand of OBO Bettermann Holding GmbH & Co. KG
PYROLINE® Con PLC fire protection duct
Mounting instructions

3 | EN
Mounting instructions, PYROLINE® Con PLC fire protection duct
Table of contents
Table of contents
1 About these instructions . . . . . . . . . . . . . . . . . . . . . 5
1.1 Target group . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.2 Relevance of these instructions . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.3 Types of warning information . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.4 Correct use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.5 Applicable documents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1.6 Basic standards and regulations . . . . . . . . . . . . . . . . . . . . . . . . 6
2 Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
2.1 General safety information . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.2 Personal protective equipment . . . . . . . . . . . . . . . . . . . . . . . . . 7
3 Necessary tools . . . . . . . . . . . . . . . . . . . . . . . . . . 7
4 Product description, PYROLINE® Con PLC fire protection duct . . .8
4.1 Product features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
4.2 Product overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
4.2.1 PYROLINE® Con D PLC for direct wall or ceiling mounting . . . . . . . . . . . . . . . . 9
4.2.2 PYROLINE® Con S PLC for mounting with a support system . . . . . . . . . . . . . . 10
5 Selecting the fire protection duct . . . . . . . . . . . . . . . 12
5.1 Fire protection duct for direct wall/ceiling mounting . . . . . . . . . . . . . . . 12
5.2 Fire protection duct for mounting with a support system . . . . . . . . . . . . 12
6 Planning an installation . . . . . . . . . . . . . . . . . . . . 13
6.1 Structural conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
6.2 Approved fastening materials . . . . . . . . . . . . . . . . . . . . . . . . . . 13
6.3 Approved cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
7 Mounting PYROLINE® Con D PLC on a wall/ceiling . . . . . 15
7.1 Mounting the duct trough . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
7.2 Mounting the duct cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
7.3 Creating a corner connection . . . . . . . . . . . . . . . . . . . . . . . . . . 19
7.3.1 90° internal corner . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
7.3.2 90° external corner . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
7.4 Creating a 90° flat angle . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
7.5 Creating a T connection. . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
7.6 Creating a cross-connection . . . . . . . . . . . . . . . . . . . . . . . . . .27
7.7 Creating other fittings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29
7.8 Mounting an end piece . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30
7.9 Running a cable out of the fire protection duct . . . . . . . . . . . . . . . . . 31
7.10 Creating a wall connection . . . . . . . . . . . . . . . . . . . . . . . . . . .32
8 Mounting PYROLINE® Con S PLC with a support system . . 37
8.1 Mounting the wall bracket . . . . . . . . . . . . . . . . . . . . . . . . . . . .38
8.2 Mounting the suspended support and bracket . . . . . . . . . . . . . . . . .39

4 | EN OBO Bettermann
Table of contents
8.3 Mounting the threaded rod and support rail . . . . . . . . . . . . . . . . . . .40
8.4 Mounting the duct trough . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
8.5 Mounting the duct cover . . . . . . . . . . . . . . . . . . . . . . . . . . . .43
8.6 Mounting fittings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .44
8.6.1 Mounting a vertical bend on a bracket or support rail . . . . . . . . . . . . . . . . . . 46
8.7 Mounting separating retainers . . . . . . . . . . . . . . . . . . . . . . . . . 47
8.8 Mounting an end piece . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
8.9 Running a cable out of the fire protection duct . . . . . . . . . . . . . . . . .48
8.10 Creating a wall connection . . . . . . . . . . . . . . . . . . . . . . . . . . .49
8.11 Combining PYROLINE® Con S PLC with PYROLINE® Con D PLC . . . . . . .57
9 Retrofitting . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
10 Maintenance. . . . . . . . . . . . . . . . . . . . . . . . . . . 58
11 Dismantling PYROLINE® Con PLC . . . . . . . . . . . . . . . 59
11.1 Dismantling PYROLINE® Con D PLC . . . . . . . . . . . . . . . . . . . . . .59
11.2 Dismantling PYROLINE® Con S PLC . . . . . . . . . . . . . . . . . . . . . .59
12 Disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
13 Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . 61

5 | EN
Mounting instructions, PYROLINE® Con PLC fire protection duct
About these instructions
1 About these instructions
1.1 Target group
These instructions are intended for specialists and/or instructed technical
personnel (e.g. engineers, architects, heads of construction, and mount-
ing and installation engineers) who have had fire protection training and
are charged with the installation of the fire protection duct.
1.2 Relevance of these instructions
– These instructions are based on the standards valid at the time of
compilation (February 2021).
– Follow these instructions to ensure correct and safe use.
– Any images are intended merely as examples. Mounting results may
look different.
– We will not accept any warranty claims for damage caused through
non-observance of these instructions.
– In these instructions, cables and lines are referred to simply as
cables.
– These instructions describe standard solutions for mounting the
PYROLINE® Con PLC fire protection duct. Special solutions for special
structural conditions are possible, but must be planned on-site with
the authorities.
– To find out more about planning and mounting the product, we recom-
mend a comprehensive training course.
1.3 Types of warning information
Type of risk!
Shows a risky situation. If the warning information is not observed, then
serious or fatal injuries may occur.
Type of risk!
Shows a risky situation. If the warning information is not observed, then
medium or minor injuries may occur.
Type of risk!
Shows a possibly damaging situation. If the safety instruction is not ob-
served, then damage to the product or the surroundings may occur.
Note! Indicates important information or assistance.
1.4 Correct use
The PYROLINE® Con PLC fire protection duct is used for the installa-
tion and guidance of cables up to a maximum diameter of d = 21 mm in
escape and rescue routes in interior areas of buildings. It protects these
WARNING
CAUTION
ATTENTION

6 | EN OBO Bettermann
About these instructions
emergency and escape routes against the impacts of a cable fire. The
PYROLINE® Con PLC fire protection duct can be mounted on solid walls
and ceilings, either directly or with a support system.
Mounting must take place with fastening material with fire protection test-
ing. Ceiling and walls at the mounting location must be made of masonry,
concrete, reinforced concrete or porous concrete, and have a minimum
thickness of 10 cm (walls) or 15 cm (ceilings). Only then can the correct
function of the fire protection duct be guaranteed.
The PYROLINE® Con PLC fire protection duct is not suitable for any pur-
pose other than that stated here.
The fire protection duct is not designed to support walls in wall penetra-
tions. Ensure that the wall penetrations can support themselves. Mount-
ing of the fire protection duct on dry or lightweight construction walls or
suspended ceilings shall not be considered proper. The use of the fire
protection duct in the maintenance of electrical function is also not per-
mitted.
1.5 Applicable documents
– Classification report K-2400/150/15-MPA BS, 2nd Edition
– European Technical Assessment ETA 11/0458
– Declaration of performance FC-0003
– Safety data sheets of the products (www.obo-bettermann.com)
1.6 Basic standards and regulations
– DIN EN 1363-1: 2012-10
Fire resistance tests – Part 1: General requirements
– DIN EN 1366-5: 2010-06
Fire resistance tests for service installations – Part 5: Service ducts
and shafts
– EN 13501-2, 2007 + A1:2009
Fire classification of construction products and building elements –
Part 2: Classification using data from fire resistance tests, excluding
ventilation services
– DIN EN 13501-2: 2016-12
Fire classification of construction products and building elements –
Part 2: Classification using data from fire resistance tests, excluding
ventilation services
– DIN 4102-4: 2016-05
Fire behaviour of building materials and building components – Part
4: Synopsis and application of classified building materials, compo-
nents and special components
– EU construction products regulation

7 | EN
Mounting instructions, PYROLINE® Con PLC fire protection duct
Safety
2 Safety
2.1 General safety information
Observe the following basic safety information on handling the
PYROLINE® Con PLC fire protection duct:
– All the appropriate regulations and technical regulations of other units,
in particular those for electrical engineering, must be complied with.
– The fire protection duct may not be subjected to heavy weights or
used as a support.
– The maximum permitted cable load should be selected according to
the total weight of the fire protection duct. The approved cable load
may not be exceeded, as otherwise the support and function capabil-
ity is no longer guaranteed.
2.2 Personal protective equipment
List of personal protective equipment to be used:
Wear safety shoes!
The weight of the fire protection duct can lead to contusions. Wear suit-
able safety shoes during transport and mounting, in order to avoid contu-
sions or crushing injuries.
Wear head protection!
The weight of the fire protection duct can lead to head injuries when
working overhead. Wear a safety helmet when performing overhead
work.
Wear breathing protection!
If there is a fire, burning cable insulation can create corrosive gases. When dis-
posing of fire protection ducts which have been subjected to a fire, wear breath-
ing protection.
3 Necessary tools
List of required tools:
– Mounting lift, if the spatial conditions permit it
– Standard hand or coping saw with coarse saw blade, also suitable for
metal, to process the fire protection duct
– Manual machines with the option of connecting a vacuum cleaner for
automatic suction
– Drill

8 | EN OBO Bettermann
Product description, PYROLINE® Con PLC fire protection duct
4 Product description, PYROLINE® Con PLC fire
protection duct
4.1 Product features
The PYROLINE® Con PLC is installed on interior walls and ceilings, to
route cables within. The fire-resistant material of the PYROLINE® Con
PLC fire protection duct fulfils the existing fire protection requirements
and, if there is a fire, prevents toxic smoke gases from spreading in
rooms and escape routes.
The PYROLINE® Con PLC fire protection duct stands out through the
following properties:
– PYROLINE® Con D PLC version for direct wall or ceiling mounting
– PYROLINE® Con S PLC version, for wall and ceiling mounting with a
support system of wall brackets or suspended supports and brackets
or threaded rods and support rails
– Fire load encapsulation up to 90 minutes (EI30–EI90 classification)
– Material made of non-combustible fibre glass lightweight concrete,
water and frost-resistant, non-electrically conductive
– Hard, smooth and anti-friction compacted surface
– PYROLINE® Con D PLC version, primed at the factory, surface refine-
ment possible through plastering, wallpapering, painting
– Processing with standard tools such as hand saw or coping saw
– Fittings for corner connection, T and cross connection for the
PYROLINE® Con S PLC version
– Simple creation of standard and special fittings according to individual
requirements with the PYROLINE® Con D PLC version
– Mounting on OBO support systems
– Simple inspection and retrofitting
– Routing of standard cable types up to a maximum diameter of
d = 21 mm, including fibre-optic cables. This excludes hollow core ca-
bles and wire cables.

9 | EN
Mounting instructions, PYROLINE® Con PLC fire protection duct
Product description, PYROLINE® Con PLC fire protection duct
4.2 Product overview
4.2.1 PYROLINE® Con D PLC for direct wall or ceiling mounting
The PYROLINE® Con D PLC product version is mounted directly on the
wall or ceiling and consists of the following product elements:
Fig. 1:
123
4
5
6
7
A
A
B
8
10
11
12
13
14
9
Product overview, PYROLINE® Con D PLC
No. Product element Function
1
Duct trough made up of duct
walls
A
and duct base
B
Cable seat, connection with wall or
ceiling
2
Sealing strip Sealing of joints and duct cover
3
Duct cover (Straight) connection of the fire protec-
tion duct
4KTM mortar Sealing of connection joints and cracks
5Wall connection collar Doubling on walls for wall penetration
6Doubler Necessary for exits of individual cables
and cable bundles
7
Separating clamp To accept cables for the mounting of the
fire protection duct under ceilings
8Separating bracket To accept cables for the mounting of the
fire protection duct on walls
9Cable fixing device vertical To accept cables for the vertical mount-
ing of the fire protection duct
10 Counter-sunk head screw Fastening of doubler and cover on duct
trough
11 MMS bolt tie for masonry Screwing of the fire protection duct to
wall or ceiling
12 Bolt tie for concrete
13 End piece End closure of the fire protection duct
14
MIW-S mineral wool Sealing of wall penetrations
Tab. 1: Product elements, PYROLINE® Con D PLC

10 | EN OBO Bettermann
Product description, PYROLINE® Con PLC fire protection duct
4.2.2 PYROLINE® Con S PLC for mounting with a support system
The PYROLINE® Con S PLC product version is mounted directly on the
wall or ceiling and consists of the following product elements:
2 3 4 5
6
7
8
9
101112
A
B
C
13
14
1516
18
17
A
D
1
19
20 21 22
Fig. 2: Product overview, PYROLINE® Con S PLC

11 | EN
Mounting instructions, PYROLINE® Con PLC fire protection duct
Product description, PYROLINE® Con PLC fire protection duct
No. Product element Function
1Duct trough made up of
duct walls
A
and duct base
B
Cable seat,
support on support system
With connector
C
Connection of the joints of two fire
protection duct troughs
2Duct cover with side and
joint overlap
D
(Straight) connection of the fire protec-
tion duct
3Sealing strip Sealing of joints and duct cover
490° bend Creation of corner connections
5T piece Creation of cable branches
6Spacer Stiffening of suspended support
7Support rail Support for fire protection duct, mount-
ing with threaded rods
8
Wall bracket and support
bracket
Mounting on wall or on suspended
support, support for fire protection duct
9Support Mounting on ceiling, support of the
bracket
10
Protective cap for support Edge protection
11 Threaded rod Suspension for support rail
12 End piece End closure of the fire protection duct
13 Wall connection collar Doubling for wall penetration
14 Counter-sunk head screw Fastening of doubler
Optional fastening of duct covers
15
MMS bolt tie for masonry Fastening of wall brackets
16
Bolt tie for concrete Fastening of wall brackets, suspended
supports or threaded rods
17 Separating retainer with Separation of cables of different volta-
ges or functions
separating retainer connec-
tor
Connection and stabilisation of the joints
of separating retainers
18 Doubler Necessary for exits of individual cables
and cable bundles
19
KTM mortar Sealing of connection joints and cracks
20 MIW-S mineral wool Sealing of wall penetrations
21 Vertical bend, rising Vertical direction changes
22
Vertical bend, falling Vertical direction changes
Tab. 2: Product elements, PYROLINE® Con S PLC

12 | EN OBO Bettermann
Selecting the fire protection duct
5 Selecting the fire protection duct
Depending on the required classification, fire protection ducts with differ-
ent wall thicknesses and mounting systems are used.
5.1 Fire protection duct for direct wall/ceiling mounting
Direct wall and ceiling mounting is particularly appropriate when no
pipes need to be refitted, buildings refurbished or surface refinement is
required, in order to integrate the duct visually into the appearance of the
room. The duct covers are screwed to the duct trough.
Classification
Duct type
PYROLINE®
Con D PLC
Internal
dimensions
h x w in mm
External
dimensions
h x w in mm
Weight/m in kg
without cable
assignment
EI30–EI60 PLCD D060810 80 x 100 125 x 160 10.0
EI30–EI60 PLCD D061220 120 x 200 165 x 260 15.7
EI90 PLCD D090810 80 x 100 140 x 180 13.7
EI90 PLCD D091220 120 x 200 180 x 280 21.0
Tab. 3: Fire protection ducts for direct wall/ceiling mounting for EI30–EI60 and EI90
classification
5.2 Fire protection duct for mounting with a support system
Mounting with a support system is particularly useful if obstacles such as
heating, ventilation or water pipes or joists must be refitted. The support
system can consist of
– wall supports,
– suspended supports with support brackets and threaded rods
– or threaded rods and support rails.
With wall supports, it is possible to compensate for larger unevenness-
es in walls or avoid vertical cables or pipelines. Support systems with a
suspended support and support bracket are easier to fill with cables. If
suspended with threaded rods, a smaller mounting area under the ceil-
ing is required. The selection of the support system is aligned to the local
conditions.
The duct covers are not screwed to the duct trough, thus allowing rapid
inspection and refilling.
Classification
Duct type
PYROLINE®
Con S PLC
Internal
dimensions
h x w in mm
External
dimensions
h x w in mm
Weight/m in kg
without cable
assignment
EI30–EI60 PLCS D060810 80 x 100 140 x 160 13.7
EI30–EI60 PLCS D061220 120 x 200 180 x 260 19.9
EI90 PLCS D090810 80 x 100 180 x 200 24.6
EI90 PLCS D091220 120 x 200 220 x 300 37. 8
Tab. 4: Fire protection ducts with support system for EI30–EI60 and EI90 classification

13 | EN
Mounting instructions, PYROLINE® Con PLC fire protection duct
Planning an installation
6 Planning an installation
To ensure the functionality of the fire protection duct, installations and
installation locations must fulfil technical and structural requirements.
6.1 Structural conditions
If there are uncertainties about the load capacity of walls and ceilings,
then a structural engineer must be consulted.
– Walls must be made of concrete, reinforced concrete or masonry (e.g.
calcareous sandstone, porous calcareous sandstone, full brick) with a
minimum thickness of 10 cm.
– Ceilings must be made of concrete, reinforced concrete or porous
concrete with a minimum thickness of 15 cm.
– Lightweight walls/partitions and wooden ceilings, as well as steel
structures and trapezoidal roofs, are not suitable for the mounting of
fire protection ducts.
– Walls and ceilings serving as a mounting surface must have at least
the same fire resistance length as the mounted fire protection duct.
– Mounting surfaces must be flat to avoid crack formation in the fire
protection ducts during mounting.
– If various electrical voltage levels are to be separated in a fire pro-
tection duct, the spacing of the various electrical voltage levels must
be at least 10 mm. Choose a fire protection duct with the appropriate
width/height and use separating clamps or brackets.
6.2 Approved fastening materials
Installed fastening materials must be fire protection-tested and certified:
– for direct wall/ceiling mounting, e.g. OBO bolt ties, type MMS-plus P
7.5x80, or similar with a rounded head, to avoid damage to the cables.
– for mounting on support systems, select the fastening material ac-
cording to the substrate and the requirements of the fire protection
duct to be fulfilled.

14 | EN OBO Bettermann
Planning an installation
6.3 Approved cables
PYROLINE® Con PLC fire protection duct for fire encapsulation
(EI30–EI60, EI90)
All standard cable types up to a maximum diameter of d = 21 mm,
including fibre-optic cables, can always be routed. This excludes hollow
core cables and wire cables.
Note! When dimensioning the cables, note that the electrical resistance of the
conductors in the cable is increased through heating. A larger conductor
cross-section may be required.
Comply with the maximum approved cable load (see Table 5). The
approved cable load is independent of the fire resistance class and the
dimension of the fire protection ducts:
Duct type
Wall/ceiling mounting Mounting
with
support
system
Cable load
Cable
directly on
top
Cable mounting
with separating
bracket/separat-
ing clamp
PYROLINE®
Con D PLC
x – – ≤ 10.0 kg/m
PYROLINE®
Con D PLC
– x – ≤ 15.3 kg/m
PYROLINE®
Con S PLC
– – x ≤ 31.5 kg/m
Tab. 5: Maximum approved cable load

15 | EN
Mounting instructions, PYROLINE® Con PLC fire protection duct
Mounting PYROLINE® Con D PLC on a wall/ceiling
7 Mounting PYROLINE® Con D PLC on a wall/
ceiling
The PYROLINE® Con D PLC fire protection duct is mounted directly on
the wall in conjunction with separating brackets or under the ceiling with
separating clamps. The cables are later routed on the separating
brackets and separating clamps.
Danger of heavy components!
Fire protection ducts are very heavy and can cause serious injuries if they fall on
your head or other parts of the body.
Always work with a partner or work with mounting aids, such as scaffolding or
a mounting lift. Wear safety shoes. If mounting on the ceiling, wear protective
helmets.
Danger of cracking!
If the walls/ceilings are uneven, this can cause crack formations in the duct
trough if the fire protection ties are too tight and the duct trough becomes
warped. Eliminate or compensate for unevennesses in the mounting substrate
before mounting.
Note! When shortening or notching out duct sections, take the width of a max.
3 mm joint with sealing strip into account.
7.1 Mounting the duct trough
≤150 mm ≤150 mm
≤ 350 mm ≤ 350 mm
1
Fig. 3: Drill hole spacings for wall/ceiling mounting
1. Drill three holes in the duct trough base along the marking lines
1
. The
diameter of the drill hole is dependent on the selected means of fas-
tening, e.g. Ø 8 mm for the MMS-plus P 7.5x80 bolt tie. Drill the holes
alternately on the top and bottom marking line. Drill a hole halfway
along and the two other holes at a maximum of 150 mm to the end of
the duct section.
WARNING
CAUTION

16 | EN OBO Bettermann
Mounting PYROLINE® Con D PLC on a wall/ceiling
K1 2
2
2
Fig. 4: Duct trough mounting
2. Place the first duct trough K1 directly on the wall at the end of the
room.
3. Draw the drill holes.
4. Drill holes in the wall/ceiling according to the selected means of fas-
tening (dimensions at least M6), e.g. for the MMS-plus P 7.5x80 bolt
tie with Ø 6 mm.
5. Apply sealing strips
2
to the front side of the duct trough K1.
A
3 mm
2
B
3 mm
2
C
3 mm
Fig. 5: Wall mounting with separating brackets
A
, ceiling mounting with separating
clamps
B
, vertical mounting with cable fixing device
C
6. Mount the duct trough in conjunction with the separating bracket
A
/
separating clamp
B
/cable fixing device
C
and MMS bolt tie. During
mounting, compress sealing strips
2
to a maximum of 3 mm.
7. Attach the duct trough to the end of the duct trough
K1
and mount in
the manner described in points 3–6.
8. Shorten the last duct trough to the wall with a hand or coping saw,
removing 3 mm from the residual length for the necessary joints.
9. Apply sealing strips to both front ends of the last duct trough.

17 | EN
Mounting instructions, PYROLINE® Con PLC fire protection duct
Mounting PYROLINE® Con D PLC on a wall/ceiling
10. Mount the last duct trough and ensure a joint of 3 mm to the previous
duct trough.
3
3
3
Fig. 6: Wall connection
11. Fully close the joint to the wall with KTM mortar
3
.
12. Close off joints between two duct troughs which are insufficiently
compressed or tight with KTM mortar.
13. Close off joints between the duct base and the wall with KTM mortar.
The cables can be routed when the duct troughs are fully mounted.
Note! Use cable ties or the slots to fasten cables with the vertical cable fixing
device.

18 | EN OBO Bettermann
Mounting PYROLINE® Con D PLC on a wall/ceiling
7.2 Mounting the duct cover
Before the duct cover is mounted, all the necessary fittings must be cre-
ated and mounted and the cables routed. Mounting of the duct cover can
deviate when fittings are used, see also chapter 7.3 - 7.7.
3 mm
220-230
50-70
220-230 220-230
220-230
1
2
3
50-70
Fig. 7: Duct cover mounting
1. Stick the sealing strip
2
all along the support surface and one front
side
3
of the duct cover.
Risk of damage!
The cover edge may be damaged while screwing it to the duct. Pre-drill
the duct cover before mounting.
2. Mount the duct cover along the marking lines
1
with counter-sunk
head screws on the duct trough. Mount the counter-sunk head screws
at a spacing of 220–230 mm and the spacing of the joints may be a
maximum of 50–70 mm.
3. Fully close joints to the wall
3
with KTM mortar.
4. Close off joints between two duct covers which are insufficiently com-
pressed or tight with KTM mortar.
The fire protection duct is fully mounted. If the fire protection duct is
run through the wall or meets it, then a wall connection collar must be
mounted, see chapter “7.10 Creating a wall connection” on page 32.
ATTENTION

19 | EN
Mounting instructions, PYROLINE® Con PLC fire protection duct
Mounting PYROLINE® Con D PLC on a wall/ceiling
7.3 Creating a corner connection
A
B
Fig. 8:
A
90° internal corner,
B
90° external corner
To run cables round room corners, it is possible to create 90° internal
and external corners with the PYROLINE® Con D PLC product version.
During mounting, proceed as described in “7.1 Mounting the duct trough”
on page 15. The cables must be routed before the duct cover is
mounted.
7.3.1 90° internal corner
A
A + 3 mm
K1 K2
1
K2
2
3
Fig. 9: 90° internal corner duct trough mounting
1. Mount the duct trough K1 with sealing strips
1
bluntly against the wall.
2. Shorten the duct walls of the duct trough
K2
, which is supposed to
continue at a 90° angle, by dimension A plus 3 mm (inner height of
duct walls plus sealing strip).

20 | EN OBO Bettermann
Mounting PYROLINE® Con D PLC on a wall/ceiling
3. Stick sealing strips to the cut areas
2
and front side
2
of the duct
base.
4. Mount the duct trough
K2
on the wall/ceiling, compressing the joint to
the duct trough
K1
to a maximum of 3 mm.
5. Fully close the interior of the created joint with KTM mortar
3
.
A + 3 mm
A
K2
D2
D2
K1
D1
B + 3 mm
B
4
5
Fig. 10: 90° internal corner duct cover mounting
6. Shorten the duct cover D2 for the duct trough K2 by dimension A plus 3
mm (inner height of duct walls plus sealing strip).
7. Stick the sealing strip all along the support surface and shortened
front side
4
of the duct cover D2 .
Risk of damage!
The cover edge may be damaged while screwing it to the duct. Pre-drill
the duct cover before mounting.
8. Mount the duct cover D2 along the marking lines with counter-sunk
head screws on the duct trough K2 .
9. Shorten the duct cover
D1
by dimension B plus 3 mm (width of the
duct plus sealing strip).
10. Stick the sealing strip all along the support surface and the shortened
front side
5
of the duct cover
D1
.
11. Mount the duct cover
D1
along the marking lines with counter-sunk
head screws on the duct trough
K1
.
ATTENTION