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TM 9-2350-267-20
LOCATION AND DESCRIPTION OF MAJOR COMPONENTS AND SYSTEMS (CONTINUED)
NBC VENTILATED FACE PIECE SYSTEM
The ventilated face piece system provides clean, filtered air for
the crew and personnel under NBC situations.
The system is comprised of one air precleaner/particulate filter
unit with four outlets, four M3 air heaters, four outlet connectors
and one NBC power control box.
The air pre&aner/particulate filter is located in the lower left
rear of the crew compartment. The air heaters are mounted for-
ward from the precleaned. The NBC power control box is attached
to the vehicle ceiling in the crew compartment on the left side.
When not in use, hoses are connected to outlet connectors which
function as one-way valves allowing system air to escape, and
preventing contaminated air from entering through backflow.
When in use, outlet connecting hoses are disconnected from
outlet connectors and inserted in the canister packs of the face
masks used with the system.
Each of the four filtered air outlets has an M3 air heater
connected in line to allow air temperature to be individually
controlled by the user.
