AGS Merlin 1000S+i User & Installation Manual - Page 6

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Merlin 1000S+i
Gas & Electric Utility Controller

ELECTRIC

When Electric service is turned on, the Electric LED will illuminate BLUE.
BLUE = Electric On
FLASHING = Electric Off, Electric button enabled
OFF = Electric Off, Electric button disabled

TIMEOUT

Under normal working conditions this LED is off. This LED will illuminate AMBER when auto-shut
down has occurred.
OFF = OK
AMBER = auto-shut down

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 re-set before
restarting the system.
OFF = OK
AMBER = EM Stop button pressed

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
RED = Gas detected.

CO2 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
RED = the concentration of CO2 is at alarm level.
3.3

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 INTERGRATION

The Merlin panel 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 power is being sent to the
solenoid.
There is a dip-switch located on the inside facia of the panel labelled [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 panel will only signal the BMS on a fault, i.e. CO2 high
level detected, gas detected, EM Stop pressed, etc.
Rev: 04 Date: 22-10-18
User & Installation Manual
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