Bell OH-58A - Page 252

TM 55-1520-228-BD
ENVIRONMENTAL CONTROL SYSTEM
1. Vent Control
2. Heat Control
3. Heat Control Cable
4. Bleed Air Tube
5. Mixing Valve
6. Plenum
7. Remote Sensor
8. Fresh Air Inlet
9. Center Post Duct
10. Air Distribution
11. Windshield Defog Nozzle
12.
13.
14.
15.
16.
17.
18.
19.
20.
21.
Plenum Drain
Plenum Valve Assembly
Ventilating and Defogging Blower
Ram Air Intake Grill
Air Distribution Valves
Cargo/Passenger Area
Coupling
Clamp
Noise Filter
Blower Inlet Duct
Tee Valve
Figure 15-3.
Heating and Ventilating System (Bleed Air) C Model
15-4