actionair DWFX-3F, Installation Manual

Actionair DWFX-F Installation Guide

8

Swegon reserves the right to alter specifications.       20210408 - LNNN00354 (3.0)                                                                   

Vertical Damper in a Masonry Wall 

with Pattress

Actionair SmokeShield PTC - [AA/F12493]

Installation Method

1. 

Drill clearance holes in the damper flange at 150mm 

centres. 

2. 

Install the damper and fix through flange using fire 

rated fasteners, min ø4mm. 

3. 

Back fill between damper casing and wall, with mine

-

ral/stone wool and pattress over this down to the 

spigot.  Fasten pattress with fire rated fasteners, min 

ø4mm. at 300mm centres.

4. Note: Dampers supplied with cleats welded to top 

flange to assist with installation only.

5. Connecting ductwork omitted for clarity. Ductwork 

must be independently supported. There must be an 

appropriate break-away joint between the damper and 

connecting ductwork on both sides of assembly. Alu-

minium rivets or plastic cleats, clips, clamps and bolts 

etc. should be used for this, unless fire resisting duct-

work is being used where fire resisting fixings should 

be used. A minimum of 200 mm between fire dampers 

installed in separate ducts and 75 mm between fire 

damper and a construction element (wall/floor).

6. For SmokeShield installations, please reference the 

actuator installation information on page 11.

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Comments:

Rev:

Drawn By:

M. Bushell

Approved By:

S. Wehrle

1  of 1 

Reference No:

S. Gore

Date:
Date:

By:

Date:

23/08/18

21/08/18

23/08/18

Date:

.

Checked By:

Sheet

Rev

AAF12493

Description:

If  your proposed installation details differ from

that shown here, please discuss this with the 

Building Control Authority (BCA), referencing 

this documentation, associated fire tests, 

assessments, and other documentation shown

below. Deviation from this drawing requires 

the approval of the relevant authority.

Installation Detail

Connecting ductwork omitted for clarity.  

Ductwork must be independently supported.  

There must be an appropriate break-away 

joint between the damper and connecting 

ductwork on both sides of assembly.  

Aluminium rivets or plastic cleats, clips, 

clamps and bolts etc. should be used for this, 

unless fire resisting ductwork is being used 

where fire resisting fixings should be used.  A 

minimum of 200 mm between fire dampers 

installed in separate ducts and 75 mm 

between fire damper and a construction 

element (wall/floor).

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

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

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





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





³ stone wool

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© Swegon Air Management Limited

South Street, Whitstable, Kent CT5 3DU

Tel:  +44 (0)1227 276100

Fax: +44 (0)1227 264262

www.swegonair.co.uk

Applicable Test Report to 

BS EN1366-2: 

BRE 256493

MINUTES

ES 120

Fire Resistance

Integrity and Leakage

.

EC1879

MJB 23-08-18

Damper Size Range (mm)

VERTICAL APPLICATION

SMOKE  DWFX-F WITH

PATTRESS IN MASONRY WALL

200 X 200 to 1000 x 1000

VERTICAL BLADES;

Damper can be installed with the blades

in the vertical orientation with the

actuator mounted at either the top or

bottom.  For cleat 



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