CGS Merlin GDP2 Guide D'installation Et D'utilisation page 7

Installation & Operation Manual
BMS Wiring and Set-Up Switch
Connections are available on the board for Building Management Systems.
These are volt free connections.
[NO] [COM] [NC]
This is a relay that changes state in alarm or when the gas is on/off and can be used in
conjunction with other external relays that affect other devices and controls such as purge fans
and audible alarms etc.
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].
BMS SWITCH
OFF
ON
Auto Reset Set-Up 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 & Zone 2 Set-Up Switch
There are dip-switches located on the GDP2 circuit board labelled [ZONE 1] & [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 zones you are not using should be left
disabled.
ZONE 1/2 SWITCH
OFF
ON
Factory Set Condition
Switch
BMS
AUTO RESET
ZONE 1
ZONE 2
ISSUE: 02 01-22 EN
BMS SIGNAL
Gas on or off only.
Error condition i.e. gas detected, emergency stop pressed.
CONDITION
GDP2 has to be restarted manually following power cut/ loss.
GDP2 will automatically restart when power is restored.
CONDITION
Gas detection zone disabled.
Gas detection zone enabled.
Condition
OFF
OFF
OFF
OFF
Merlin GDP2
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