181922 Rev B
3
Controlled by ECCN:EAR99
PROPRIETARY INFORMATION – Refer to the restrictions provided on the Title Page of this document.
EAR DATA - Subject to the export control restrictions on the Title Page of this document or file
INTRODUCTION
This manual describes the operation and maintenance of the Kidde Automatic Fire Detection
and Suppression System (AFSS) and Gas Leak Detection System (GDS) as installed on the
NFI 40ft CNG buses at BC Transit.
The AFSS system is of a 1 Zone, 1 Shot type configuration. The fire detection system provides
fire detection coverage for the engine compartment and consist of:
Three (3) spot thermal detectors in the engine compartment
The suppression system provides extinguisher coverage for the engine compartment and
consist of:
A single fire extinguisher
A four (4) nozzle distribution system
The GDS provides gas leak detection coverage for vehicle. Four (4) gas detectors are installed:
Two (2) in the roof tank area
One (1) in the area above the CNG fill
One (1) in the engine compartment
BLOCK DIAGRAM
A system block diagram is shown in Figure 1.
FIGURE 1 – SYSTEM BLOCK DIAGRAM