Automated Intumescent Fire Damper - TransShield ACS

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Automated Intumescent Fire Damper - TransShield ACS

Key Features

Slimline non-vision intumescent fire and smoke damper with unique sliding plate smoke control.
Fully automatic open/close operation with Talkpac 2-way communication smoke control system.
Continuous status monitoring and display.
Fail-safe closure for smoke control operation.
Self testing on a 24 hour programme.
Automatic reset to open position when alarm cancelled or power restored.
Low voltage DC supply to dampers.
Up to 16 dampers controlled from one Talkpac panel with simple loop wiring.
Complies to electro magnetic compatibility and low voltage directives.
1 hour fire rating door mounted.
2 hour fire rating wall mounted.



Description

The range of combined intumescent fire and smoke dampers can be used in all applications where cold smoke containment is required. These dampers are connected, via a control panel, to a standard fire alarm system. In event of an alarm condition, or power failure, the dampers shut, preventing the passage of cold smoke. These products have been designed to allow the smoke damper element to be used without the intumescent, in applications where only smoke and/or gas containment is required.

Air transfer products have many applications in new building and refurbishment projects. Ventilation through doors and walls is often a very cost effective means of improving air quality by better air distribution. However, the use of straight forward air transfer grilles often conflicts with the needs of fire safety, particularly where ventilation is required between fire compartments or into corridors and other 'means of escape' routes.

The TransShield ACS-D door mounted damper/air transfer products have been tested in door assemblies under the conditions of BS 476 Pt 22 to determine fire performance, and BS 476 Pt 31.1 to established smoke leakage criteria.

It is worth noting that a fire door illegally jammed open to allow air movement, or a fire door which cannot be opened or closed properly due to differential air pressure, is potentially a major hazard. Ventilation engineers have found the flexibility of the design that the automatic fire and smoke dampers provide, contribute to versatile installations which meet the demands of good air quality and fire safety requirements.

Computer rooms and communications centres are often protected from the spread of fire by the use of halon substitute gases. The nature of these environments demand good air movement but, in the event of a fire, the containment of the fire suppressant gases is imperative. Once the fire is out, it is also important to be able to automatically ventilate the enclosure to allow the earliest human occupancy. The TransShield ACS fire and smoke damper/air transfer grilles will satisfy these needs entirely.

Fire resistant air transfer grilles for a range of applications and fire performance levels are available in the form of intumescent damper/air transfer grilles. These products react to temperatures in excess of 100C, whereupon the swelling of the intumescent material seals the entire aperture area. This system, whilst very effectively preventing the spread of fire through air transfer apertures in fire doors, walls or ducts, does not control the movement of cold smoke or fire extinguishing gases.

To satisfy this requirement the TransShield ACS will, when combined with intumescent damper/air transfer grilles, provide complete fire and smoke protection.

Specification

Specification ACS-D

  1. The TransShield ACS-D shall comprise of an assembly with three slotted plates, two fixed and one sliding plate allowing air transfer when in the open position. This is fail-safe operated, closed by motorised actuator to prevent the passage of cold smoke in the event of an alarm or power failure.
  2. The non-vision grilles each side of the sliding plate assembly are manufactured from P.V.C. slats with an intumescent core. An increase in temperature resulting from either flames or hot gases causes the grille to intumesce, fusing together to provide an effective barrier to the passage of fire and hot smoke. This complies to BS476 Part 20: 1987 for a period of 1 hour and the leakage requirements of BS476 Part 31: Section 31.1.

Specification ACS-W

  1. The TransShield ACS-W shall comprise of an assembly with three slotted plates, two fixed and one sliding plate allowing air transfer when in the open position. This is fail-safe operated, closed by motorised actuator to prevent the passage of cold smoke in the event of an alarm or power failure.
  2. The wall mounted unit incorporates a non combustible housing and intumescent damper: white painted press steel grilles are provided on each side. An increase in temperature resulting from either flames or hot gases causes the damper to intumesce, fusing together to provide an effective barrier to the passage of fire and hot smoke. This complies to BS476 Part 20: 1987 for a period of 2 hours and the leakage requirements of BS476 Part 31: Section 31.1.

Dimensions

TransShield ACS-D are available in 3 sizes, 200mm x 200mm, 300mm x 300mm and 450mm x 450mm having respective effective free area of 0.012m2, 0.027m2 and 0.061m2.

TransShield ACS-W are available in 3 sizes, 200mm x 200mm, 300mm x 300mm and 450mm x 450mm having respective effective free area of 0.012m2, 0.027m2 and 0.061m2..


Product Documents

Title Type Added Link
TransShield 24Volt PSU 4-Way Datasheets about 3 months ago Download >
TransShield Modes 1 and 2 - Stainless Steel Sliding Plate Fire Dampers Datasheets about 3 months ago Download >
Transhield ACS catalogue Brochure about 8 months ago Download >

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