Merlin 1000V
Product Data Sheet
S&S Northern Ltd
5
Pressure Low LED
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. (The
system will only go to pressure low from gas on).
OFF = OK
AMBER = gas supply pressure low.
Timeout LED
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 LED
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
CO2/Gas Detected LED
Under normal working conditions this LED is off. If the external Merlin detector/ CO2
connected detects gas this will show RED and the Gas valve will turn off.
OFF = OK
RED = Gas detected / high ppm levels of CO2
Fan Fault LED
Under normal working conditions this LED is off. If a fan fault is present for more than 10
seconds, the LED will illuminate RED. The system will only go into fan fault from gas on.
OFF = OK
RED = the gas supply has been shut off due to a ventilation fault.
WHEN A FAULT IS PRESENT YOU WILL NEED TO CONTACT YOUR
SERVICE/MAINTENANCE COMPANY.
YOU SHOULD NOT ATTEMPT TO CARRY OUT A REPAIR OR RECTIFY THE FAULTS
UNLESS YOU ARE QUALIFIED TO DO SO.
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 1000V 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 the room
has use of the gas supply.
There is a dip-switch located on the inside facia of the Merlin 1000V
labelled ‘BMS
Selection’. This is factory set in the ‘off’ position which signals the BMS on gas on/gas
off. When swit
ched to the ‘on’ position, the 1000V will only signal the BMS on a
fault, i.e. CO2 high level detected, gas detected, EM Stop pressed, etc.
