181922 Rev B
11
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
FIRE EXTINGUISHER (421220-22)
The Fire Extinguisher is an electrically operated, stored pressure type extinguisher that contains
25 pounds of BC rated ‘Purple K’ dry chemical extinguishing agent pressurized with nitrogen.
A fast opening valve is mounted on a DOT certified cylinder. The extinguisher is installed
horizontally in the bottle-mounting bracket (421222) with the gauge right.
CAUTION! THE EXTINGUISHER WILL NOT FUNCTION AS INTENDED IF ORIENTED
INCORRECTLY
WARNING! THE ANTI-RECOIL PLUG SHALL BE INSTALLED ON THE VALVE OUTLET
PORT AT ALL TIMES EXCEPT WHEN THE EXTINGUISHER IS
CONNECTED TO THE DISTRIBUTION PIPING OR WHILE THE
EXTINGUISHER IS BEING FILLED.
Operating Temperature Range
-65⁰F to 200⁰F (-53⁰C to 93⁰C)
Pressure
360 psi
Mounting Bracket
421222
FIGURE 9 – FIRE EXTINGUISHER
(DEPICTED IN VERTICAL MOUNT ORIENTATION)
ELECTRICAL INTERCONNECTIONS
The vehicle harness connects the components that make up the fire and gas system together.
The vehicle harness also connects the fire and gas system’s vehicle interface outputs to the
vehicle’s multiplex system allowing the activation of features such as HAVC shutdown and
engine shutdown. Refer to the System schematic, 475921, for more information.
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