Installation & Operation Manual Merlin 1000S+
1000S+
IOM
Rev: 9 07-20
11
Test Fail
Under normal working conditions this LED is off.
When the panel detects a gas leak on start-up, the LED will illuminate AMBER. Gas valve will
remain closed.
OFF = OK
ON = gas proving failed.
Pressure Low
Under normal working conditions the LED is off.
The LED will illuminate AMBER when pressure of the gas supply drops below 12mbar for 10 secs.
The gas valve will close.
OFF = OK
ON = gas supply pressure low.
Timeout
Under normal working conditions this LED is off.
This LED will illuminate AMBER when auto-shut down has occurred.
OFF = OK
ON = Auto-shut down activated
EM Stop
If an emergency shut off button (either remote or on the panel) is pressed, the LED will
illuminate AMBER and the gas will be turned off.
The EM Stop button must be reset before restarting the system.
OFF = OK
ON = Emergency Shut-Off button activated.
Gas Detected
Under normal working conditions this LED is off.
If the external Merlin detector connected detects gas this will show RED and the gas valve will
turn off.
OFF = OK
ON = Gas detected.
CO
2
High
Under normal working conditions this LED is off.
If the concentration of CO2 in the air is at alarm level (relevant detector required), the LED will
show RED and the Gas valve will turn off.
OFF = OK
ON = the concentration of CO2 is at alarm level.
