General description
Fire dampers prevent fire and smoke from spreading through ventilation systems. They are equipped with a thermal release mechanism.
Certified high reliable safety systems perform fire detection and the control of fire dampers.
The fire damper monitors fire alarm inputs. The fire alarm will be signalized with the dampers end switches. The dampers end switches are normally closed contacts by default.
Fire damper end switches have usually changeover contacts.
If someone wants to use NO contacts for the damper end switches - see the chapter"programming hints".
Fire dampers may belong to a group or operate in stand-alone mode.