Fireco Dorgard X2, Fitting And Operating Manual

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Introduction and Glossary
Dorgard X
2
is a Battery operated device designed to hold open a fire door safely and legally.
It will automatically release upon receiving a signal from System X. Dorgard X
2
can be used
to hold the fire door in any position between open or closed and can only be used in
conjunction with System X.
Dorgard X
2
can be linked to either a Category A Hardwired System X or a Category B
System X transmitter. Once linked, the Dorgard X
2
will remain and work as a Category A or
Category B fire door retainer.
It is recommended that a fire door is not retained at an angle of less than 65 degrees.
Up to 200 Dorgard X
2
units can be Linked to any one System X transmitter within range. A
Site Survey must be carried out prior to Installation. Contact your supplier or contact the
Technical Advice line if you have any questions.
Glossary of Terms used in this Guide.
CIE - Fire Alarm Control Indicator Equipment.
MAC address - Media Access Control address. Every Dorgard X
2
and System X
transmitter have individual MAC addresses which allows each unit to be controlled
individually and helps prevent cross chatter.
Fail-to-safe
- The activation of the Dorgard to release its door and not allow the Plunger to
remain in the down position and therefore hold open its door.
Link - The association between a Dorgard X
2
and its System X transmitter. Without a Link
the Dorgard X
2
will Fail-to-Safe and not operate as a hold open device.
LCD
- Liquid Crystal Display. The screen which displays the System X’s functions, Clock
etc.
LED - Light Emitting Diode. On the top of the Dorgard is a Tri-Colour LED which
illuminates Red, Green. The LED flashes according to the Dorgard X
2
’s status.
Staged Fire Alarm
- A fire alarm system which does not activate the sounders until the
‘second stage’. A ‘first stage’ allows time to check for false alarms etc., prior to a full
evacuation.
Call-in - The System X transmitter continuously talks to all Linked Dorgard X
2
units. This
Call-in is used as a status check and if Call-ins are missed the Linked Dorgard X
2
will
fail-to-safe.
Door Warping
- Where a fire door loses shape and will therefore not create a tight seal
against the door jamb when closed.
2