AGS Merlin GDP2 Installation Operation & Maintenance - Page 6
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Installation & Operation Manual
Wiring your Detector
Power is supplied to a detector via the GDP terminal [+ / -] and using the panel [GAS DETECTION ZONE] terminal.
If you are using a GDP panel you will need to use the detector [C/L] terminal as an alarm relay.
BMS Switch
The GDP2 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 electrical power is being sent to the solenoid. There is a dip-switch located on
the GDP2 circuit board labelled [BMS]. This is factory set to 'OFF' position which signals the BMS on gas on/gas off.
When switched to 'ON', the GDP2 will only signal the BMS on a fault, i.e. gas detected, EM Stop pressed, etc.
BMS SWITCH
OFF
ON
Auto Reset Switch
The GDP2 has a built-in auto reset feature.
There is a dip-switch located on the GDP2 circuit board labelled [Auto].
This is factory set in the 'Off' position i.e. when power is restored after a power cut or loss, the panel has to be
restarted manually. When switched to 'On', the system will restart automatically when power is restored.
AUTO SWITCH
OFF
ON
Zone 1 - 2 Set-Up Switches
There are dipswitches located on the GDP2 circuit board labelled [ZONE 1] and [ZONE 2].
This is factory set in the 'Off' position. For each of the gas detector zones you are using please ensure that the
relevant zone has being enabled. The zone you are not using should be left disabled.
ZONE 1/2/3/4 SWITCH
OFF
ON
Rev: 8 03-21
BMS SIGNAL
Gas on or off only.
Error condition i.e. gas detected, emergency stop pressed.
CONDITION
GDP2 has to be restarted manually following a power cut/loss.
GDP2 will automatically restart when power is restored.
CONDITION
Gas detection zone disabled.
Gas detection zone enabled.
Merlin GDP2
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