PREMIER SX USER MANUAL, MAINTENANCE GUIDE & LOG BOOK
8. USING SOUNDER DELAYS
8.1 WHAT IS A SOUNDER DELAY
In certain circumstances it may be desirable to have a delay between the panel detecting a fire, and starting its external sounders, to allow the responsible person to check the cause of the alarm, to stop building evacuation by an obvious false alarm. If the cause of the Alarm is found to be a true fire hazard, the Delay can be overridden and the Alarm Sounders activated immediately. Alternatively, in the case of a false alarm, the Panel can be reset.
8.2 SOUNDER DELAY SETTING
On the Premier SX panel, the sounder delay is global. That is, all zones will be delayed by the same amount. The delay can be set between 1 minute and 9 minutes, by turning the rotary dial to the relevant position, or the delay can be left off (sounders activate immediately), by leaving the dial at the 0 position.
8.3 HOW THE PANEL INDICATES SOUNDER DELAY
If a Delay has been programmed into the Panel, the General Disablement & DEL(AY) LEDs will be lit. When a zone processes an alarm signal, the panel will indicate fire in the usual way, but the sounders will not be active until the delay period has expired. To override this delay, press Delay Override Switch, which will cause the external sounders to energise. If there is no delay programmed, the Delay Override Switch has no function.
8.4 A FIRE ALARM CONDITION ON A DELAYED PANEL
When an alarm occurs on a Delayed Panel, the panel will: -
•Light its General Fire and appropriate Fire Zone light(s)
•Sound its Internal buzzer
•Start the Delay countdown sequence
•Wait until the end of the delay, then start the sounders.
8.5 OVERRIDING A DELAY IN THE EVENT OF A GENUINE FIRE ALARM
If on investigation the cause of the Alarm is found to be a true fire hazard, pressing the Delay Override, will active the Alarm Sounders and Outputs with immediate effect.
8.6 RESET THE SYSTEM IN THE EVENT OF A FALSE ALARM
If, on investigation, the cause of the Alarm is found to be false, turn the Key switch to the “Controls Enabled” position and press reset button.
8.7 TO TURN OFF THE SOUNDER DELAY
There are two ways of turning off the sounder delay:-
1Return the rotary switch to the 0 position.
2Turn key to controls enabled position. Press engineer button (to select disablement mode). Press delay override (the DEL LED will now go off to show that the delay is no longer active). Pressing Delay Override again will toggle the delay back on.
Approved Document No: | PAGE 11 | |
Issue: 1.3 Authorised: GH | Date: 9/6/2004 |
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