SPECIFICATION FOR COLT STAIRWELL VENTILATOR
Product Reference
Colt Stairwell Ventilator
Description
Where protected stairwells do not have opening windows at each upper storey a stairwell ventilator is required at the top of each protected stairwell.
Clear opening louvred natural extract ventilator, suitable for installation at any angle from vertical to horizontal. Tested to, and in compliance with BS 7346 Part 1 and EN 12101-2. The ventilator shall have an open area of at least 1.0mē in accordance with the requirements of Approved Document B to the Building Regulations and BS 5588.
Operation
The ventilator shall open on loss of power, 240V ac / 24V dc, and shall close automatically when power is reinstated. Operated by a manual break glass switch or fireman's override switch. Switches shall be located at the head of the stairs and at the final exit from the stairs. To avoid the ventilator opening in the case of a power failure, a maintained supply or a battery backup system capable of keeping the ventilator closed for at least 30 minutes is required. The mains supply (by others) shall terminate [select] in the protected stairwell / close to the battery backup panel.
Material
All principal components manufactured from corrosion resistant aluminium alloy grade 3005 in accordance with EN573-3, with stainless steel fixings.
Louvre blades
Single skin aluminium/ Insulated double skin aluminium / Twin wall opaque or clear polycarbonate / Single skin laminated or toughened glass. Fitted with low-loss seals to minimise air leakage when closed.
Controls
24v dc or 230v ac OPV addressable electronic, failsafe open. Thermal release at the ventilator for added security.
Guards
Factory fitted Bird guard / Insect guard / Security guard / Burglar guard
Finish
Mill finish Aluminium/ Polyester Powder Paint Finish/ PVF2.
The design, manufacture, installation, wiring and commissioning of the complete system shall be carried out by one specialist company and their approved sub-contractors. The specialist company shall be responsible for gaining Building Control approval for the system. The specialist company shall be a BSI registered firm for the design, manufacture, installation and commissioning of smoke control systems in accordance with ISO 9000. Proof of certification shall be provided with tender submission.
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