Operation
Electric operation: Doors can be operated by 3-phase or 1-phase geared motor units which come complete with an emergency hand chain facility and a low level push button station. The motors integral controlled descent mechanism allows the door to close at a safe speed upon activation.
Manual operation: Actuation of the door is by manual hand chain. With this type of operation the door should be left open and left to close under activation from a fire.
Modes of activation
Fusible link release: This is a soldered link which melts at a temperature of 72°C and releases the brake allowing the door to close.
Solenoid release unit: This is linked to the fire alarm system and requires a 24V DC signal. Upon activation of the fire alarm the brake is released and the door closes at a controlled rate.
Audio Visual Warning: Upon receipt of the fire alarm signal the unit flashes 'Door Closing' and sounds an alarm to warn occupants that the door is closing. A programmable timer attached to the unit delays the closing of the door.
Finishes
Sitework
Full service from advice to site survey, manufacture, delivery and installation.
Contact
Sales Department - +44 (0) 1142 889464
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