Merlin CT1200S
User Guide
Rev: 03 05-23
6
4
Panel LED Status
•
Power
When the system is connected to the mains
supply, the Power LED will illuminate.
If no power is present, this LED will not light up.
•
Gas on
When the fans are running at the correct
speed and the key switch is turned on, the
CT1200S will open the gas valve and the
green ‘Gas On’ LED will illuminate.
ON = Gas On
OFF = Gas Off
•
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.
OFF = OK
ON = Emergency Stop button pressed
–
De-press the button and reset the system.
•
Supply Fan
Under normal working the LED will illuminate GREEN. If a supply fan fault is present, the LED will
be flashing. If the LED flashes for more than 20 seconds, the gas will be shut off.
ON = OK
FLASHING = the supply fan is not running.
•
Extract Fan
Under normal working the LED will illuminate GREEN. If a supply fan fault is present, the LED will
be flashing. If the LED flashes for more than 20 seconds, the gas will be shut off.
ON = OK
FLASHING = the extract fan is not running.
•
Fan Fault
Under normal working conditions this LED is off. If a fan fault is present for more than 20 seconds,
the LED will illuminate AMBER.
OFF = OK
ON = the gas supply has been shut off due to a ventilation fault.
IF A FAULT IS FOUND YOU WILL NEED TO CONTACT YOUR SERVICE/MAINTENANCE COMPANY.
YOU SHOULD NOT ATTEMPT TO CARRY OUT A REPAIR UNLESS YOU ARE QUALIFIED TO DO SO.
