Dorgard™ Fire Door Retainer

Check that your fire alarm sounds for at least 30 seconds and that your fire doors are free to close without any obstacles in the way. Also check that the plunger has a minimum of 10mm of down travel before the ferrule contacts the floor. In order for Dorgard to release the fire door the fire alarm needs to be louder than 65dB where Dorgard is situated. The Dorgard may need to be calibrated, take a look at adjusting the sensitivity of Dorgard in your fitting and operating guide.

As a safety feature, Dorgard has to release to any sound that it hears as being continuous and louder than 65dB as this sound could be obscuring a potential fire alarm. Check that Dorgard is on the side of the door that closes into the door frame and that Dorgard will release if the door is pushed in the direction of opening. Dorgard does release every 7 days as part of its self-testing routine so this may be why the door closed. The Dorgard may need to be calibrated, take a look at adjusting the sensitivity of Dorgard in your fitting and operating guide.

Please check that the ferrule is not worn or damaged and replace this if necessary. Dorgard needs to be positioned low enough that the ferrule makes good contact with the floor when the plunger is depressed. A vertical plunger movement of 10 - 15mm is ideal. You may need to re-position the Dorgard on the door or fit the floor fixing plate supplied. It is recommended that you also check that the overhead door closer does not shut the door with excessive force. If so, fit the floor fixing plate supplied or loosen pressure on the overhead closer. Your floor may also be a bit slippery and the ferrule is finding it hard to make good contact with the floor, you may need to fit the floor fixing plate supplied to stop this happening.

Check that the plunger is depressed while standing side on; also check that the battery compartment is closed and that the batteries are working. Dorgard also needs to be positioned low enough that the ferrule makes good contact with the floor when the plunger is depressed. A vertical plunger movement of 10 - 15mm is ideal. Check that Dorgard is installed on the side of the door that closes into the door frame.

No. Dorgard listens for a continuous sound and will verify the alarm over a 20 second period and then release the fire door. School bells generally last for a couple of seconds so this shouldn’t affect your Dorgard.

Rechargeable batteries are not to be used. Seton recommends the continued use of Duracell Pro-cell batteries which are supplied with the unit.

Yes. Dorgard can definitely be installed on bedroom doors and allows residents to have the door open a little way or fully open as it holds the door open at any angle. Residential care homes may even claim the VAT back on Dorgards that are installed on bedroom doors.