SPECIFICATION FOR THE EXTENDED CORRIDOR SYSTEM
Manufacturer
Colt International Limited
New Lane, Havant, Hampshire. PO9 2LY
Tel. 023 9245 1111
Fax. 023 9245 4220
Product Reference
Colt Extended Corridor System
Description
The Colt Extended Corridor System comprises:
- For extract, duty and standby extract fans rated at 300°C for 2 hours
- For inlet, duty and standby fans rated at 300°C for 2 hours
- Colt Seefire duct termination
- Colt Seefire stairwell ventilator
- Ducting to link builders work shaft to fans and duct termination
- Motorised smoke damper and grille to each lobby (or) Doorman door actuator for each lobby (for a FD30 rated fire door provided by others)
- Main control panel plus mimic panel for fire service use
- MCC/Fan starter panel linked to main control panel
- Smoke detector outside each apartment at each level.
Builders work requirements
The builders work shaft is to be substantially straight, vertical and directly adjacent to the lobbies. The construction is to have a smooth internal face and minimum air leakage. The internal cross section is to be no less than 0.6m² and the aspect ratio no greater than 2:1. Where a fire door is used for connection to the lobby, the shaft is to be wide enough to accept a door of at least 655mm wide and deep enough to allow the door to open 30°. Where a fire door is used an open mesh grille is required in the shaft at each storey to prevent risk of falls down the shaft.
The fire door between the lobby and the accommodation will be fitted with smoke seals (FD30S rating).
Unless otherwise specified the ducting will be constructed from galvanised steel to DW144.
Please note that it is possible that the ducting is in a location that requires fire rated ducting.
System Control (typical specification)
1 central addressable panel to be supplied [per building]. This will then be linked to a central MCC panel which shall operate the relevant supply and exhaust fans.
For means of escape (automatic) mode the heat detection system shall provide initial operation of the smoke control system and set up in automatic mode. Upon activation of the heat detection system it will signal to the smoke control panel which residential floor is in fire mode.
Upon receipt of this initial signal, the smoke control panel will undertake control of the system. The Control Panel will establish which Damper needs to be activated. This will also send a signal to the fan control panels to start the fan operation.
A local override switch will be provided to each AOV.
Both the local heat detection system and local override switch will be connected to the addressable OPV control system, resulting in no local power or data requirements by others.
Design work
A full design report including all calculations and CFD analyses shall be provided for submission to Building Control prior to installation. This shall include a detailed comparison of the performance of the mechanical solution with a standard wall mounted AOV to validate the suitability of the design for the application. The report shall include for CFD animation of both the AOV system and the mechanical system.
Scope of work
The design, manufacture, installation, wiring and commissioning of the complete system, including associated ductwork, shall be carried out by Colt International Ltd and their approved sub-contractors. The specialist company shall be responsible for demonstrating and gaining Building Control approval for the ventilation system.
Colt are 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.
The system will require annual maintenance and testing. The supplier shall include in the tender for a service visit and system test to be carried out one year after the system hand over at no charge to the client.
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