Bell OH-58A - Page 251

TM 55-1520-228-BD
ENVIRONMENTAL CONTROL SYSTEM
2.
3.
4.
5.
6.
7.
8.
9.
10.
Vent and Defog Control
Heat Control
Heat Control Cable
Bleed Air Tube
Mixing Valve
Plenum
Remote Sensor
Fresh Air Inlet
Post Plenum
Air Distribution Valves
11.
12.
13.
14.
15.
16.
17.
18.
20.
Windshield Defog Nozzle
Plenum Drain
Plenum Valve Assembly
Ventilating and Defogging Blower
Ram Air Intake Grill
Air Distribution Vents
Coupling
Clamp
Noise Filter
Tube
Figure 15-2.
Heating and Ventilating System (Bleed Air) A Model
15-3
1.
19.