Merlin GDP4
Product Data Sheet
Rev: 05 Date: 08-01-18
5
3.2.7
Reset Button
The reset button is located on the front fascia of the GDP4 and is used to turn the system on.
3.2.8
Mute Button
The mute button is located on the front fascia of the GDP4 and is used to mute the sounder inside the
board when in alarm.
3.3
Using the Emergency Shut Off
The Emergency shut off button is located on the front of the panel. There is also a facility for remote
shut off buttons to be wired in series.
The Emergency shut off button(s) will cut off the gas supply when activated.
To reinstate the system, the Emergency shut off button(s) will need to be reset and the panel restarted.
3.4
BMS Integration
The Merlin GDP4 can be integrated with a BMS to make or break a circuit on gas on/gas off, (valve
open or valve closed). This will tell the BMS whether or not 230V is being sent to the solenoid.
There is a dip-switch located on the inside facia of the Merlin GDP4 labell
ed ‘BMS SEL’. This is factory
set in the ‘off’ position which signals the BMS on gas on/gas off. When switched to the ‘on’ position, the
GDP4 will only signal the BMS on a fault, i.e. gas detected, EM Stop pressed, etc.
3.5
Auto Reset
The Merlin GDP4 has a built-in auto reset feature. There is a dip-switch located on the inside facia of the
Merlin GDP4
labelled “Auto Reset”. This is factory set in the ‘off’ position. When the power is restored
after the power cut, the panel has to be restarted manually. On installation, this can be switched to the
‘on’ position if required. This will instruct the system to restart automatically when power is restored
following a power cut.
3.6
Zones 1-4 dip-switches
There is a set of four dip-switches located on the inside fascia
of the Merlin GDP4 labelled “ZONE 1”,
“ZONE 2”, “ZONE 3” & “ZONE 4”. This is factory set in the ‘enabled’ position. For each of the zones you
are not using please disable.
