The Flameshield 120 commercial fire shutter was successfully tested at the Warrington Fire Research Establishment and is constructed to WARRES No.145904 – the test is in accordance with clause 8 of BS476 part 22: 1987
Fire relay and key switch (requires maintained supply, battery back up needed if no maintained supply). Fire relay, key switch and fusible link if no fire alarm.
Principally the commonly used means of release, the characteristics mimic the use of the solenoid on the conventional fire shutter, again linked to the fire alarm, the shutter rather than closing manually through the gearbox will of course be powered down. A volt free signal is required from the fire alarm.
Fusible Link Release
On activation, the link which is a soldered link, separates and releases at 64 degrees centigrade, in effect the temperature release of the link creates a signal to the relay which in turn powers the door down.
Audio Visual Warning (FDI)
Principally this unit is designed to delay the closing of the fire shutter: generally the fire alarm is linked to the audio visual unit and from the audio visual unit straight into the key switch. There is no need for a separate relay: there is already a relay in the FDI. On activation from the fire alarm the unit starts to “flash & sound”, this unit contains a programmable timer which effectively delays the signal to the relay in the panel to close the door. 230mm wide x 240mm long x 120mm deep.
The shutter test relates to the 1HR/2HR fire resistance. The shutters are generally intended for protection of a range of openings in masonry / concrete, steel, steel stud or timber partitions. The maximum clear openings are for 4000mm wide x 2500mm high, or in a partition system for 1 hour up to an area of 10sq mtrs, principally this incorporates the BRE test FG 7941N which relates to a tested fire shutter in a stud partition, the opening must be fire rated to suit and be capable of carrying the weight of the shutter.
Where the shutters are used to protect serveries it is assumed that the counter is composed of non-combustible material and the counter is of sufficient width to ensure that the bottom rail movement under heating cannot result in the rail overhanging the counter. Shutters over 3500mm up to 4800mm will be traditional curved 75mm lath construction, based on a maximum area of 10sq mtrs. Shutters under 4000mm clear width will have 50mm guides and shutters over this width will have the traditional 65mm guides.
Battery Back Up Unit
Principally the tube motor fire shutter requires a maintained supply. If this cannot be achieved then effectively the shutter will require a battery back up unit. If under fire conditions there is a power failure, the shutter must have a means of ensuring closure, the unit provided will give the facility for at least one operation under fire conditions. The dimensions of the battery backup are 200mm (wide) x 130mm (long) x 70mm (deep)
Paint Finish Option
To compliment the aesthetics of your application, this product can be power coated to any standard BS or RAL colour