Hoyles Dorgard Fire Door Retainer - Manual (Page 7)

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Night-time Release
Dorgard can be used to hold a fire door open 24 hours
a day. It is recommended however, that fire doors
are closed at night as the chance of a fire spreading
undetected is greater than during daylight hours.
To ensure that fire doors are closed at night, Dorgard
can be set to release at a pre-set time and then will
not operate as a hold open device until later.
Setting Night-time Release:
1. Ensure Dorgard Internal Clock is set to ‘real time’
(see Setting the Time).
2. Turn the Dorgard over to reveal the Dip Switches.
3. Using the small block Plastic Adjustment Tool
supplied to select the required Night-time Release
setting. Flicking the Dip Switch towards the number
will turn the function On.
Note. With all Dip Switches up Night-time
Release will not operate.
Night-time Release warning tone:
It is recommended that the warning tone is NOT
disabled. The warning tone is to alert persons
using the building that the door is about to close and
is a safety feature. It is recognised however, that in
some locations the warning tone at night may cause
a disturbance. It is for this reason alone that the
provision of disabling the night time tone has
been made.
After installing the Batteries, Dorgard sounds a long
tone, followed by a motor sound (Dorgard setting),
then 3 x single tones. These 3 tones indicate the Dip
Switch selection, Low tone = Off, High tone = On. For
example: the Dip Switches are selected; No:1 = On,
No:2 = Off, No:3 = Off. The tones will then sound High,
Low, Low.
Dip
Switch
Release
Time
Reset
Time
1 20:00 08:00
2 21:00 07:00
1 & 2 22:00 06:00
Night-time Release
options are:
Note. Dip Switch 3
disables the Night-time
Release warning tone.
Dip Switch 4 has no
function.