Release Stages

Operating Instructions

4.13 Release Stages

Outputs programmed as Release Stage NACs indicate the two stages of a release operation:

the activation of an output programmed as a Releasing Circuit will cause the programmed indicating NAC output to turn on steady

upon completion of the release, the programmed indicating NAC output will pulse at a 20 pulse-per-minute rate

4.14Special System Timers

4.14.1 Silence Inhibit Timer

This option, if selected, prevents the Alarm Silence key from functioning for 60 seconds following an alarm. A new alarm during the initial 60 second period will not cause the timer to restart with a new 60 seconds. Silence Inhibit operation requires the approval of the local AHJ.

4.14.2 Autosilence Timer

If Autosilence is selected, the notification appliances, programmed as silenceable, will automatically be silenced after a programmable duration of from 5 to 30 minutes. Pressing the Drill key will restart the timer. Autosilence operation requires the approval of the local AHJ.

4.14.3 Trouble Reminder

If selected, this feature causes a reminding ‘beep’ every 15 seconds during an alarm (after the Alarm Silence key is pressed) and every two minutes during a trouble condition (after the Acknowledge/Step or Alarm Silence key is pressed). The ‘beeps’ from the onboard piezo sounder will occur until the alarm or fault is cleared.

Note that if Trouble Reminder feature is not selected and the trouble is not cleared within 24 hours, the piezo will resound, indicating that the trouble condition still exists.

4.14.4 Soak Timers

Two Soak Timers allow the user to program a time between 10 and 30 minutes for each water releasing circuit to remain active. Soak Timer 1 is used for Releasing Solenoid Circuit 1 and Soak Timer 2 is used for Releasing Solenoid Circuit 2. Following an alarm condition in which the releasing circuit is activated, the water release will stop when the corresponding Soak Timer reaches zero.

4.14.5 Waterflow Delay Timer

If selected, this option will delay the activation of a waterflow type alarm for a programmable time duration from 1 to 90 seconds. This delay is in addition to any time delay inherent in the waterflow device. This feature requires the approval of the local AHJ.

4.15 Walktest

Walktest is a feature which allows one person to test the fire alarm system. An audible walktest will momentarily sound the Notification Appliance Circuits in the building and store the walktest information in a file at the panel. A silent walktest will not sound the NACs but will store the walktest information in a file which can be viewed at the panel. Disabled NAC devices will not activate during walktest. In addition, i3 smoke detectors will enter their own test mode causing their LEDs to flash twice every five seconds (refer to i3 specification document).

MRP-2001 & MRP-2001E PN 53040:A 4/16/2007

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