MANUAL NUMBER 160339
REVISION 09SEPT04 PAGE 3
INTRODUCTION
This manual describes the operation and maintenance of the Kidde Dual Spectrum
®
Automatic Fire Detection and Suppression System (AFSS) as installed for trial purposes on one
Prevost H345 bus (#1304) at Prevost Car Inc, Sainte-Claire, QC, Canada.
SYSTEM OPERATION
When a fire is detected inside the engine compartment, the system sends a fire alarm
signal to the Protection Panel located in the operator's area. The Protection Panel immediately
turns on the fire "ALARM" lamp and sounds the audio alarm. After a 15-second time delay the
engine is automatically shut down. The Fire Extinguisher is discharged simultaneously with
engine shutdown. The Manual Activation Switch is used when immediate discharge of the Fire
Extinguisher and engine shutdown are desired.
The Protection Panel continuously monitors system integrity and displays the
information via the “SYSTEM OK” and fire “TROUBLE” indicators.
A system block diagram is shown in Figure 1.
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