Lindab FireProtect Round Smoke Extraction Duct Installation Guide

Validity

This installation guide applies to round smoke extraction ducts made of sheet steel, type Lindab FireProtect, tested according to DIN EN 12101-7:2011-08 and certified according to the performance declaration 0761-CPR-0359.

Classification: According to DIN EN 13501-4 based on EN 1366-9: E600 120 (ho) S - 1500 single.

For use within individual sections. (Must not be routed through components for which a fire resistance period is required.)

All Lindab FireProtect smoke extraction ducts are clearly marked with non-removable CE stickers as smoke extraction ducts without a fire resistance class. Components that do not comply with the performance declaration are also not marked with a sticker.

Mounting Accessories

The following components are necessary for hanging the ducts and are included:

• 1 fire protection tested anchor M8x40 for use in fire-resistant components with concrete strength classes between C 20/25 and C 50/60.
• 2 screws M8
• 2 nuts M8
• 2 washers (M8)
• 1 threaded rod M8
• 1 pipe clamp, two-part

All accessories for vertical mounting and fastening are not included in the scope of delivery and must therefore be ordered separately!

For mounting the anchors, a (site-provided) carbide hammer drill and the corresponding, separately orderable marking expansion tool are required.

Important Notes:

• Protect pipes, fittings, and mounting parts from environmental influences.
• Pipes, fittings, and mounting parts where tightness is reduced due to damage must not be used.
• Only pipes and fittings marked with the CE sticker may be used for smoke extraction. The sticker must not be removed.
• For anchor installation, only use carbide hammer drills and the corresponding marking expansion tool.

Mounting of Pipes and Fittings

The mounting of pipes type SRFP and fittings is carried out as described below:

• Cut the pipe at a right angle and deburr the cut edge carefully.
• Place the fitting with the lip seal onto the pipe.
• Check that the lip seal cannot kink or twist.
• Insert the fitting into the pipe. A slight rotation helps.
• Secure the fitting with self-tapping screws Ø4.2x13 mm.

Hanging of Ducts - Horizontal Mounting

Important Note:

Each pipe and fitting may only be suspended with the supplied parts. The threaded rods may only be loaded with 750 N each when fastened to fire-resistant solid components. The distance between two suspensions must not exceed 2000 mm.

Maximum suspension distance:

[Diagram showing maximum suspension distances of 2000 mm with a flexible connector indicated]

When fastening to fire-resistant clad steel components, form-fitting connecting elements must be used instead of anchors, for which the above-mentioned limitation of the calculated load must be observed. In this case, the cladding of the steel components must be extended to the suspensions over a length of at least 300 mm.

According to expert opinion MPA-BS 6000/242/20, the smoke extraction ducts can also be mounted vertically with a height offset of up to 2500 mm. See instructions for vertical wall mounting.

According to expert opinion MPA-BS 6000/242/20, the smoke extraction ducts can also be mounted vertically with a height offset of up to 2.5 m. See instructions for vertical wall mounting.

Important Note:

For smoke extraction ducts with lengths over 5 m, measured along the duct axis, flexible connectors must be installed at intervals of no more than 10 m. For vertical mounting, the interval is max. 2.5 m.

The connection of smoke extraction ducts to components for which a fire resistance period is required must be carried out with flexible connectors. See attached installation instructions for the flexible connector (WSK).

Hanging of Ducts - Horizontal Mounting (Anchor Installation)

Before installing the anchors, the concrete strength class of the anchoring base must be determined. It must be between C 20/25 and C 50/60.

• The borehole must be made with a carbide hammer drill. If there is a mis-drilled hole, a new borehole must be made at a distance of at least 2x the depth of the mis-drilled hole. The nominal drill diameter and cutting diameter must correspond to the values on the right.
• Remove the drilling dust from the borehole.
• Insert the anchor sleeve into the borehole or drive it in with light hammer blows so that it is flush with the concrete surface.
• Anchor the anchor with the setting tool. The expansion cone must be driven in with an impact tool until the collar of the impact tool rests on the anchor sleeve.

Assembly check:

[Diagram showing anchor installation steps: drilling, cleaning, inserting anchor, anchoring, attaching component, applying torque]

With complete expansion, markings are visible on the expansion sleeve.

Anchoring in uncracked concrete:

Visible marking with complete expansion.

• Screw the threaded rod into the anchor as far as it will go.
• The pipe clamp consists of 2 parts. The upper part has an M8 threaded bush. Screw the upper part onto the threaded rod. Loosely screw the lower part to the upper part on one side with an M8 screw, washers, and M8 nut. Place the pipe between the pipe clamp parts and connect the 2nd side with screw, nut & washers. Screw the connections tightly.
• If necessary, shorten the threaded rods.

[Diagram showing pipe clamp assembly with threaded rod and flexible connector]

Important Note:

The suspensions may only be used for the smoke extraction system. Components that are not part of the smoke extraction duct must not be mounted!

Hanging of Ducts - Vertical Wall Mounting

Bracket Sizes

[Diagrams of different bracket types: Konsole 725/400, Konsole 550/400 gekürzt, Konsole 880/550 ohne Auflageschiene]

Bracket Assignment and Fastening

[Diagram showing bracket dimensions and attachment points]

Table 1: Bracket assignment and fastening

[Diagram showing anchor loads and fastening details]

* Fastening according to Table 1 Fire protection anchor type Bolt anchor BZ

Connecting Components

Preparations:

The materials must be in a clean condition.

Cutting Pipes:

Pipes must be cut at a right angle, and the cut pipe end must be deburred.

Assembly of Individual Parts:

Pipes are connected using nipples. Fittings with nipple dimensions can be connected to the pipe or with fittings with socket dimensions.

• Check that the pipe, fittings & seals are undamaged.
• Insert the spigot end of the fitting into the pipe as far as the stop-ridge. A slight rotation of the fitting during insertion facilitates assembly.
• The fitting is now fastened to the pipe with sheet metal screws.
• According to this table, the following number of screws must be mounted:

• Screws must be evenly distributed over the circumference.
• The screws must be mounted 10-15 mm from the edge of the pipe or fitting socket to avoid damaging the rubber lip.
• In case of incorrect assembly, screw holes must always be sealed.

Mounting of Pipe-in-line Grilles

Cutouts can be made in the spiral ducts SRFP and pipe-in-line grilles type RGS-0 can be installed. The grille is fastened with sheet metal screws (3.9 x 19mm), at a maximum interval of 425 mm from each other. The cutout dimension is equal to the nominal dimension of the grille.

Connection to Flexible Connectors

Pipes and fittings that are connected to round flexible connectors must be provided with a flange connection. The connection is made by a Lindab FL type flange and a loose collar. Alternatively, fittings can be manufactured with a flange, in which case the connection is made by a loose underlying flange of the Lindab FL type.

[Diagram showing connection to flexible connector with flange, steel rivets, and collar]

Mounting of Flexible Connectors

Important Note:

The connection of Lindab FireProtect smoke extraction ducts to components for which a fire resistance period is required must be carried out with flexible connectors (WSK).

For ducts with a length > 5 m between classified walls, a connector must be installed. The maximum distance between connectors must not exceed 10 m. If the duct direction changes, it must be checked whether expansion possibilities or connectors need to be installed at shorter intervals than required by DIN 4102-4.

Mounting of Flexible Connector between 2 Lindab FireProtect Smoke Extraction Ducts:

[Diagram showing flexible connector installation between two ducts with dimensions and connection profiles]

• Before starting assembly, check whether the pipe spacing (installation gap) "LE" is a maximum of 155 mm, so that the connector is not stretched beyond its permissible installation length. Also, check the offset and alignment of the holes. If necessary, consider the factory-applied marking of the installation position before installation.
• The sealing surface of the flange connection must be smooth, flat, and free of burrs. If necessary, clean the mating flanges and repair any scoring in corrosion protection coatings. The welds on the mating flanges must be ground smooth, otherwise leaks may occur.
• Important Note:
• When connecting tested sheet metal smoke extraction ducts on both sides, the installation situation (fixed point/sliding movement) is irrelevant. When mounting directly to a smoke extraction damper, e.g., type RKU, the fixed point side must always be connected to its duct connection profile.
• Important Note:
• The tensioning cords must remain in the connector during assembly. For larger dimensions, they can be tensioned during assembly, which facilitates installation! The tensioning cords can also remain tensioned in the connector after assembly; in case of fire, they will burn through and tension the connector!
• Important Note:
• Connectors are sensitive to external mechanical damage! Therefore, do not handle them with sharp-edged tools or pull them over sharp edges!
• After inserting the connectors into the duct gap, fasten the mounting elements to the connector. The heads of the fastening screws must be placed on the side of the connector bellows so that they are not damaged by protruding screws.
• Any necessary equipotential bonding according to VDE 0100 must be carried out by the customer.

Mounting of Smoke Extraction Dampers Type WXHU

In the spiral ducts SRFP, smoke extraction dampers of type WXHU can be installed as follows:

• Cut the pipe at a right angle and carefully deburr the cut edge.
• Place the damper with the side where the motor protrudes onto the pipe.
• Check that the lip seal cannot kink or twist.
• Insert the damper into the pipe. A slight rotation helps.
• Secure the damper with self-tapping screws Ø4.2x13 mm.
• Provide for fastening with a pipe clamp before and behind the damper.

Technical Data of Actuators

[Diagrams showing wiring connections for BLE24 and BLE230 actuators]

Maintenance Information

Commissioning:

Proper commissioning requires acceptance of the entire smoke extraction system, including volume flows and, if applicable, leakages according to DIN EN 12599.

Regular Inspections:

Regular checks/inspections must be carried out by the system operator at intervals to be determined based on the operating conditions, but at least every 12 months.

Smoke extraction dampers must be inspected at least every six months, taking into account the basic maintenance measures according to EN 13306 in conjunction with DIN 31051. If two consecutive inspections within a 6-month period reveal no functional defects, the smoke extraction damper only needs to be inspected annually.

The inspections, which must be carried out as part of the operating and maintenance requirements of the entire smoke extraction system, include the following checks and require the creation of a report with final confirmation that the duct fulfills its function as part of the smoke extraction system.

• Check the duct for damage.
• Check the connections between the fittings and the connected components.
• Check the seals of penetrations at section boundaries.
• Check the cleanliness of the duct and, if necessary, arrange for cleaning.
• Check the condition of the seals and, if necessary, repair them.
• Check for corrosion.

Good Thinking

Responsible thinking is Lindab's corporate philosophy that guides us in all our actions. We have made it our mission to create a healthy indoor climate – and to make building sustainable buildings easier. We achieve this through the development of innovative and easy-to-use products and solutions, as well as through our efficient delivery and logistics concept. We are also working on ways to reduce negative impacts on the environment and climate. This includes the development of methods with which we manufacture our solutions with the lowest possible energy and raw material consumption and thus reduce environmental impact. We use steel for our products. It is one of the few materials that can be recycled indefinitely without losing its properties. This means that CO2 emissions and energy consumption are significantly reduced.

We simplify construction