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ISOLATED MODE
This mode is selected using the DIP switch located inside the lid of the panel and is generally used to isolate the system
during maintenance. Since the panel has no control of the discharge function in LOP systems this function is not
enabled on LOP installations to avoid possible confusion.
When a MusterWire LHD installation is isolated the panel will not discharge the system on detection of a fire, nor will
it activate the Alarm, Fault or Shutdown relays. It will however continuously monitor all circuits for faults or fire and the
appropriate indicator will light (non latching) enabling a technician to do fault-finding.
When exiting this mode the panel will treat any fire detected within the first 4 seconds as a fault to avoid unintentional
discharge.
TEST FUNCTION: Press and hold this button for 5 seconds to enter a latched relay test mode, the button can be released
at this point. In this mode the three relays will be energised in the following sequence with each successive press of
the test button: FAULT relay - ALARM (fire) relay – SHUTDOWN relay – FAULT relay and so on. When a relay is activated
the appropriate LED (FAULT, FIRE or SHUTDOWN) will blink continuously. To exit this relay test mode press and hold the
TEST button for 2 seconds. The relay test mode will automatically exit if the TEST button is not pressed for 60 seconds.
This mode is useful to test the integrity of the wiring of an installation.
STANDBY MODE (OK MODE)
The OK LED indicates that all systems are functioning correctly and monitoring for fire conditions.
Briefly pressing the TEST button will activate (test) the buzzer and all LEDs.
TEST FUNCTION:
Low Cylinder Pressure (ORANGE)
System OK (GREEN)
Fire Alert (RED)
Isolated Indicator (ORANGE)
Low Battery (ORANGE)
Discharge in Process (ORANGE)
System Fault (ORANGE)
Shutdown Initiated (ORANGE)
Mute Buzzer (GREEN)
Remote Fire (LHD Only)
Test Buzzer
Dual function: LHD or LOP
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