•Trouble status LED
•Input status LED
•Output status LED
•Acknowledge button
•Alarm Silence button
•System Reset button
The fire system and panel are tested by the local certified fire system supplier and witnessed and certified by the local Authorities or fire marshal.
The fire system operator panel requires regular maintenance and service. For more information on the fire system operator panel component, see the Operation and Maintenance Manual for the HP Performance Optimized Datacenter 20c.
Fire suppression sequence of operations
There are two initiation sequences for the fire suppression system, automatic (VESDA) initiation and manual initiation. The fire strobe light is activated by either initiation sequence.
Personnel can determine the status of the system by the differences of the alarm horn. The following table describes the fire suppression system status.
Fire suppression | Beats per minute | Description | Personnel actions |
system stages |
|
|
|
|
|
|
|
Warning | 20 | An alarm condition exists | Personnel may investigate |
120 | Countdown to fire suppression | Personnel should evacuate | |
|
| agent has started |
|
Steady | Fire suppression agent is released | Personnel should not enter, | |
|
|
| contact local Authorities |
The fire system operator panel indicates which initiation sequence has begun with indicator lights and a panel alarm. These signals are also available to the site BMS system, if connected.
After the fire suppression system is activated by a VESDA signal or a manual fire button, a
VESDA initiation
The VESDA fire suppression system signal has two levels that the system cycles through when smoke is detected.
•Level
•Level
Press the fire suppression abort button to interrupt the fire suppression release countdown. Pressing the abort button resets the countdown to 10 seconds, regardless of the amount of time elapsed from the original
Life safety systems 23