Fire-Lite MS-4E Fire Alarm Control Panel - Manual (Page 40)

40 MS-2 & MS-4 Series Manual — P/N 51512:G2 10/18/2011
Section 4: Operating Instructions
The MS-2 and MS-4 have two modes of operation which are Normal and Walktest modes. Upon
initial power-up, the system will be in Normal Mode. This section discusses operation of the
control panel in the Normal Mode.
4.1 Switch Functions in Normal Mode
4.1.1 ACK - Acknowledge
The Acknowledge button, which is located on the FACP membrane switch panel, silences the
system piezo sounder and changes all flashing system LEDs to on steady. Pressing the
Acknowledge button will have no effect on the Notification Appliance Circuits. To activate, press
and hold the Acknowledge button for a minimum of one second.
4.1.2 Silence
Pressing the Silence button, which is located on the FACP membrane switch panel, silences the
system piezo sounder, turns off the silenceable Notification Appliance Circuits and turns on the
Alarm Silence LED. The Silence button will be ignored for nonsilenceable waterflows and NACs.
Upon the occurrence of a subsequent event (alarm or trouble), Silence is overridden and the control
panel will respond to the new event. To activate, press the Silence button for a minimum of one
second.
4.1.3 Zone Enable/Disable
To disable a zone, press the corresponding Zone Enable/Disable button. The Zone Disable and
system Trouble LEDs will blink, as well as the Trouble LED for the disabled zone. To enable the
zone, press the Zone Enable/Disable button a second time.
4.1.4 Reset/(Lamp Test)
The system Reset button, which is located on the FACP membrane switch panel, resets the system
and any smoke detectors. Each press of the Reset button will cause the following:
 Clear all status LEDs
 Turn off the Notification Appliance Circuits
 Reset all zones by temporarily removing power
 Silence the onboard piezo sounder
 Restore all system relays to normal
 Temporarily remove power from the resettable power output
Any alarm, supervisory or trouble condition that exists after a system reset will resound the system,
reactivating appropriate system activity. Any zones that were disabled before the reset will be
disabled after the reset.
Lamp Test When the Reset button is pressed and then released, the FACP will perform a Lamp
Test. All panel LEDs will be turned on and the piezo will sound for approximately two seconds.
NOTE: If Silence Inhibit has been enabled, NACs cannot be silenced for one minute following
initiation of an alarm.
NOTE: If Silence Inhibit is active, a panel reset cannot occur for one minute.