Swegon actionair DWFX-C - User Manual

INSTALLATION GUIDE
DWFX-C Installation Method
Health and safety
• This process must be undertaken by competent per-
sons. More than one person may be required to ensure
the safe handling of large dampers and other materi-
als. Use must be made of access equipment to ensure
unsafe practices are not used to approach walls or dif-
cult access areas.
• Standard site PPE should be used (minimum steel toe
cap boots, hard hat); together with any protective
eyewear, gloves and masks, when drilling or cutting is
being undertaken. The latter should also be used when
handing the wall construction materials, as dened by
the material suppliers. If loud equipment is being used,
hearing protection should be used.
• All waste materials should be collected and disposed of
as dened by the relevant supplier.
• Actuators: All wiring should be carried out in accor-
dance with the wiring details provided by the IEE and
BS regulations and by a competent person. Care must
be taken when installing and inspecting dampers, as
they are likely to close without warning due to loss of
electrical power or a temperature rise in the ductwork.
This is their prime function. Do not insert any items,
ngers or limbs between the blades. Larger dampers
must be handled in accordance with current regula-
tions and good practice due to weight.
Drawings
Please visit our website to download the installation
drawings, which are located on the relevant product
download section.
Applies to...
• Actionair SmokeShield PTC
• Actionair FireShield
Contents
CE Installation Method Overview ..................... 2
Vertical Damper Installation in a Plasterboard
Wall with Pattress ............................................... 3
Vertical Damper Installation in a Plasterboard
Wall without Pattress ......................................... 4
Vertical Damper Installation in a Plasterboard
Wall against a Floor Slab .................................... 5
Self Latching Removable Release Mechanism
Cassette ..............................................6
Actuators ............................................. 7
Periodic maintenance ..............................8
Control Mode Installation Procedure .............................. 8
DWFX-C Damper Wiring Diagrams .............. 9
Mode 5 ......................................................................... 9
Mode 6 ......................................................................... 9
Mode 5 3P ..................................................................... 9
DWFX-C Damper Dimensional Data ...........10
Troubleshooting ....................................13
Inspection and handover check sheet .........14

Summary

DWFX-C Installation Method

Drawings

Information on downloading installation drawings.

Health and Safety Precautions

Essential health and safety precautions for installation.

CE Installation Method Overview

Vertical Damper Installation in Plasterboard Wall with Pattress

Installation Method

Step-by-step guide for installing dampers in plasterboard walls with pattress.

Vertical Damper Installation in Plasterboard Wall without Pattress

Installation Method

Step-by-step guide for installing dampers in plasterboard walls without pattress.

Vertical Damper Installation Against Floor Slab

Installation Method

Step-by-step guide for installing dampers in plasterboard walls against a floor slab.

Self Latching Removable Release Mechanism Cassette

Manual Operation

Description of manual operation for periodic functional testing.

Thermal Actuator Operation

Explanation of thermal actuator operation at 72°C.

Remote Release Operation

Details on remote release operation using Bowden cable or electrical means.

Reset Operation

Procedure for single-hand reset of damper blades.

Actuators

Control Mode Installation Procedure

Procedure for installing the control mode and interface.

Periodic Maintenance

Manufacturer Recommended Service Intervals

Recommended service intervals for life safety products.

DWFX-C Damper Wiring Diagrams

Mode 5 Wiring

Wiring diagram for Mode 5 dampers.

Mode 6 Wiring

Wiring diagram for Mode 6 dampers.

Mode 5-3 P Wiring

Wiring diagram for Mode 5-3P dampers.

DWFX-C Damper Dimensional Data

Rectangular Dampers Series 501

Dimensional data for rectangular dampers Series 501.

Circular Dampers Series 601

Dimensional data for circular dampers Series 601.

FireShield Damper Dimensional Data

Series 101 Dimensions

Dimensional data for FireShield dampers Series 101.

Series 201 Dimensions

Dimensional data for FireShield dampers Series 201.

Series 301 Dimensions

Dimensional data for FireShield dampers Series 301.

Cleat Dimensions

SmokeShield PTC Cleat Dimensions

Dimensions related to cleats for SmokeShield PTC.

FireShield Cleat Dimensions

Dimensions related to cleats for FireShield.

Troubleshooting

Inspection and Handover Check Sheet

Overview

1. Function Description
2. Usage Features
3. Maintenance Features

The Actionair DWFX-C is a range of fire and smoke dampers designed for installation in various wall constructions, including plasterboard walls with or without pattresses, and against floor slabs. These dampers are crucial components in maintaining fire compartments and controlling smoke in ventilation systems, ensuring the safety of occupants in a building. The installation methods are specifically designed to ensure CE-marked compliance, covering single damper assemblies. For more complex or non-standard installations, consultation with Actionair is recommended early in the project.

Function Description:

The primary function of the DWFX-C dampers is to prevent the spread of fire and smoke through ductwork in fire-separating elements. The SmokeShield PTC models are actuated, fail-safe close dampers with low smoke leakage, often referred to as Fire/Smoke dampers. These are tested to BS EN 1366-2 and classified under BS EN 13501-3, in accordance with the Fire Damper Product standard BS EN 15650. For smoke control applications, the product should be tested to BS EN 12101-8 and typically features a drive open, drive closed mechanism without a fail-safe position, as detailed in the Actionair SmokeCommand smoke control damper documentation.

The dampers incorporate a self-latching removable release mechanism cassette. This cassette is completely removable from the FireShield Damper by manually releasing a retaining clip, allowing for easy replacement without the need for tools. This design enhances the ease and speed of resetting the damper curtain to its fully open and latched position after periodic functional testing.

The thermal actuator, a key component of the release mechanism, is a helical memory metal compression spring made from a special Cu-Zn-Al brass alloy. Upon reaching a temperature of 72 °C, this spring expands, causing the damper blades to release and close. When the temperature cools, the spring reverts to its close-coiled state, enabling repeated operation unless it has been exposed to temperatures exceeding 170 °C, which would cause it to remain extended and prevent resetting. Cassettes are generally available for 72 °C applications. For dampers requiring alternative thermal link temperatures, a chain-link can be offered instead of a cassette. Electrical release is exclusively available with a 72 °C cassette.

The dampers can be controlled in various modes, including Mode 5, Mode 6, and Mode 5-3P, each offering different operational characteristics. In Mode 5 and Mode 6, the damper motors open when power is supplied and the spring closes the damper when power is off, with an electrical thermal release mechanism. Mode 5-3P allows for proportional control (0-10V DC signal) of the actuator motors to position the damper as specified by the control signal. In all modes, if the Electrical Thermal Release (ETR) is activated, or if power supply is lost or removed, the device springs the damper to its fail-safe closed position.

Usage Features:

The DWFX-C dampers are designed for straightforward installation, with detailed instructions provided for various wall types. The installation process involves fitting tracks, suspending the damper from the ceiling using drop rods, framing out the damper with tracks and studs, building the partition, insulating the wall, and sealing the damper to the partition with intumescent sealant. Specific attention is given to maintaining minimum distances between fire dampers in separate ducts (200 mm) and between a fire damper and a construction element (75 mm).

The self-latching removable release mechanism allows for simple hand operation to reset the damper curtain to the fully open position. This feature significantly improves the efficiency of periodic functional testing, which is mandated by standards like BS9999:2008 Code of Practice for fire safety. The remote release operation can be achieved via a Bowden cable with manual action or an Electrical 230V AC or 24V AC/DC Electro Magnet fail-safe action, independent of the thermal actuator. The Bowden outer sleeve can be fitted from either side of the cassette for flexibility.

The actuators are installed by sliding the interface and mode assembly into the shroud, ensuring proper alignment with the drive coupling, and pushing until the retaining pin engages. The control mode can be oriented vertically down, horizontally, or vertically up, depending on height restrictions, by removing and repositioning the interface adapter plate. The Electrical Thermal Release (ETR) should be mounted through the ductwork, ideally in the top half of the duct or above the interface level, using a self-adhesive template for drilling and ensuring both sections of the ETR are fully closed for proper operation.

Maintenance Features:

Periodic maintenance is crucial for ensuring the correct operation of the DWFX-C dampers and maintaining compliance with standards such as BS EN 15650:2010 and BS 9999:2017. Manufacturer-recommended service intervals include regular physical inspections and functional testing. After commissioning and handover, a regular service and inspection program is recommended to ensure correct operation when actuation is required.

Recommended service intervals for life safety products include:

• Every 6 Months:
  • Checking actuator and limit switch wiring for damage.
  • Checking damper cleanliness, and cleaning/lubricating if necessary.
  • Checking the condition of blades and seals, with rectification as needed.
  • Checking for blade obstructions.
  • Checking the damper release mechanism through activation or release of the ETR or Thermal Fuse Device.
  • Confirming the damper is left in its normal operational position after inspection.
• Monthly:
  • Completing actuation of the damper from the control panel (if installed) and checking for all faults. Any reported faults should be investigated by specialist personnel.

The self-latching removable release mechanism facilitates easy resetting of the damper after testing. The actuator control mode installation procedure includes steps for manually resetting and releasing the damper using a winder to ensure correct mechanical operation. It also details checking the unit for correct electrical operation by powering on to reset and powering off to release, and confirming damper release by pushing and holding the test switch on the ETR.

Troubleshooting guidance is provided for common issues such as the interface mode assembly not fitting into the shroud, the control mode not operating electrically, or limited/no movement of damper blades. These issues can often be resolved by gentle adjustment, checking wiring, replacing components, or ensuring correct synchronization and fitment of parts. It is important to note that modifications to the units will invalidate warranties. The ETR cable should not be cut or lengthened, as this will render the unit inoperable and void any warranties due to a built-in safety feature.

Swegon actionair DWFX-C Specifications

General

Type	Fire and Smoke Damper
Model	DWFX-C
Manufacturer	Swegon Actionair
Frame Material	Galvanized steel
Blade Material	Galvanized steel
Actuation	Electric actuator
Standards Compliance	EN 15650, EN 13501-3
Application	Fire and smoke control in HVAC systems