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Operating Instructions
4.2 Indicators
The eight indicators, which are located on the front panel, operate as follows:
AC Power
This is a green indicator which illuminates if AC power is applied to the FACP. A loss of AC
power will turn off this indicator.
Fire Alarm
This red indicator flashes when one or more alarms occur. It illuminates steady when the
Acknowledge/Step or Alarm Silence key is pressed. The Fire Alarm indicator turns off when the
Reset key is pressed. The indicator will remain off if all alarms have been cleared.
Supervisory
This is a yellow indicator that flashes when one or more supervisory conditions occur, such as a
sprinkler valve tamper condition. It illuminates steady when the Acknowledge/Step or Alarm
Silence key is pressed. It turns off when the Reset key is pressed and remains off if all supervisory
alarms have been cleared.
Trouble
This is a yellow indicator that flashes when one or more trouble conditions occur. It stays on steady
when the Acknowledge/Step or Alarm Silence key is pressed. The indicator turns off when all
trouble conditions are cleared. This indicator will also illuminate if the microprocessor watchdog
circuit is activated.
Alarm Silenced
This is a yellow indicator that illuminates after the Alarm Silence key is pressed while an alarm
condition exists. It turns off when the Drill or Reset key is pressed.
Pre-Discharge
Pre-discharge is a yellow indicator that indicates a releasing event has been initiated and the
releasing delay timer has been started.
Discharge
This is a red indicator that illuminates steadily when the agent releasing circuit is activated and a
discharge is taking place.
Abort
This is a yellow indicator that illuminates steadily to indicate that an input Abort circuit has been
activated to interrupt an agent release.
4.3 Normal Operation
With no alarms or troubles in the system, the display message is System All Normal along with the
current time and date as shown below. To set the time and date, refer to the appropriate section in
this manual.
86
SYSTEM ALL NORMAL
10:00A 031106
MRP-2002 & MRP-2002E PN 53049:A1 5/01/2008
Indicators
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