Hoyles Dorgard Fire Door Retainer - Manual (Page 4)

Prior to Installation
Prior to installation ensure:
1. That a suitable Automatic Fire Detection
Alarm System is installed.
2. The fire door is self-closing i.e. has a door
closer fitted.
3. The fire door closes tightly against the
door jamb.
4. Where Dorgard is to be fitted, the floor and
door surface is smooth and flat.
5. You have determined the closing force of
the door.
6. The Fire Alarm System is working
correctly, i.e. the sounders work when
activated.
7. There is clearance under the fire door for
fitting of the Floorplate, i.e. 5mm.
8. Dorgard forms part of your Fire Risk
Assessment (as required by the Fire
Precautions [Workplace] Regulations 1997,
also required by the Regulatory Reform
(Fire Safety) Order 2006).
When Dorgard is holding a fire door open, the
Dorgard “listens” continually for the sound of
your fire alarm. When the alarm sounds,
Dorgard will verify the alarm over a 20
second period and then release the fire door.
3