Conventional Accessories

The Zeta magnetic door holder is designed to retain a fire door open against the force of its own closing device. In the event of a fire, the door holder magnet can be turned off by the fire alarm, allowing the door to shut.
The manual release button is changeable from the base side to left or right. Cable entry is possible from rear side by means of enclosed exits from the base side, left or right. An optional bracket is also available for floor or wall mounting (ZT-BR).

The Zeta magnetic door holder is designed to retain a fire door open against the force of its own closing device. In the event of a fire, the door holder magnet can be turned off by the fire alarm, allowing the door to shut.
Cable entry is possible from rear, and top/bottom.
A floor / wall bracket is included as standard.

The Zeta duct unit allows air in a ventilation duct to be monitored for smoke via a smoke detector mounted externally in a sealed chamber.
The unit comes supplied with 2 sampling probes (on in & one out) which are mounted through the duct in the centre of the air flow

Double pole isolation of the mains supply must be provided for all system parts, with lockable facilities located near the equipment, clearly labelled “FIRE ALARM” or “FIRE ALARM, DO NOT SWITCH OFF”, and positioned inaccessible to unauthorised persons or secured with a special tool.