Installation & Operation Manual Merlin GDPX+
GDPXPLUS - IOM Iss: 8 02-21
14
Diagnostic Screen
Touching the Diagnostic screen (D) will display three characteristics of the GDPX+.
a.
Gas supply pressure monitored by the pressure sensor
connected to the downstream port of the gas valve.
b.
Fire Alarm Bypass (FAB)
(Enable/disable).
c.
Internet connection status.
(Connected/disconnected)
Fire Alarm Bypass
The fire alarm bypass (FAB) feature can be enabled at times where fire alarm tests are required.
To enable the FAB feature select the Diagnostic screen and press the OFF/ON button shown where you
are prompted to confirm the action prior to activation.
The FAB feature will be shown on screen when enabled and timeout at the end of the pre-selected time of
15, 30 or 45 minutes (see settings). You can manually disable the FAB by pressing the blue option box to
OFF on the diagnostic screen.
Alarm Messages
The GDPX+ will display messages when in alarm – the messages are prompted from external devices that
have been connected i.e. heat or pressure sensor.
When the GDPX+ goes in to alarm, the user can silence the audible buzzer by pressing MUTE.
During the alarm, the gas will be shut off and no gas detection details will be available.
After the cause of alarm has been rectified – press the RESET button on the GDPX+ panel.
The cause of alarm will have to be investigated and rectified before resetting the GDPX+!
