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15 Wentworth Place, Banyo Qld 4014
T 1300 858 010 

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 F +61 7 3861 9266  

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 E [email protected] 

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 www.kilargo.com.au

Step 1

Position damper centrally in penetration aperture as per system drawing with 
IBS Backing Rod and temporary supports or packers.

Step 2

Apply Kilargo Intumescent Mastic (supplied separately) to the gaps between 
the damper & building element. Ensure fill depth corresponds with those 

detailed in the system drawing.

Step 3

Fasten mounting angles to damper with steel self-drilling screws or steel pop 
rivets and, if detailed, to the building element with appropriate mechanical 
fixings as per system drawing.

Step 4

Ensure product and certification labels are in a prominent position for easy 
identification during subsequent maintenance inspections.

Step 5

Connect ductwork to the damper casing with AS 1682.2 compliant breaka

-

way joint. 

IFD44-LL Series: Hebel

Installation Instructions:

Ducted

System Notes

Grilles, louvres, IBS backing rod & fixings are to be supplied by others.

Kilargo Intumescent Fire Dampers shall be installed in accordance with this detail,
including the use of Kilargo Intumescent Mastic and in accordance with the
requirements of AS1682.2.

Ensure convenient access is provided for visual inspection and cleaning as necessary. 

2mm Minimum gap allowable between damper and aperture. For gaps between
2-5mm, a fillet of Kilargo Intumescent Mastic shall be applied.

FRL

-/120/-

System No.   WH11 (a)

Building element:

Hebel

Application:

Mounted in casing DD / DG 

in 75SW system hebel wall

Maximum size:

300 x 300 *without build up

FRL

-/120/-

Test reference No. FAS200229

*Max size 1200 x 1200 if wall thickness is built 

up locally with 100mm wide FR plasterboard to 

a minimum thickness of 116mm 

Duct to Duct

Duct to Grille

Casing length 150mm MAX 

from face of the wall

Gaps between damper casing and 

wall system firestopped with Kilargo

 

Intumescent Mastic 50mm deep.

 

Max gap 25mm

Kilargo IFD44-LL fixed 

into ductwork with steel

tek-screws or pop rivets

Casing length on either

 side of wall 150mm MAX

0.7mm or greater

Z275 gal steel casing 

pos

i

tioned centrally

within aperture

IBS Backing Rod

Kilargo Intumescent

fire damper fixed to

steel casing

Kilargo Intumescent

Mastic applied to entire

perimeter of IFD44-LL

damper (on both sides)

Gaps between casing and

wall system firestopped 

with Kilargo Intumescent

Mastic 25mm deep.

 Max gap 25mm

Hebel 75SW Wall

Minimum 0.7mm steel angles at least 

twice the width of the penetration gap,

 

fixed to damper casing with steel screws,

 

bolts or pop rivets and fixed to wall with 

steel fixings at maximum 150mm centre

 

spacing or:

-2 per side for casing lengths up to 250mm

-3 per side for casing lengths 251-400mm

8G x 65mm Coarse Thread Screw

Steel Tek Screw

Kilargo IFD44-LL fixed into

ductwork with steel tek-screws

or pop rivets as follows:

Side Length

 

Qty

 

of

 

Screws

0-100mm

101-250mm

251-400mm

401-600mm

1 set

2 sets

3 sets

4 sets

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