TM 5-4220-227-14 KEY TEXT LEGEND Reference Item Designation Description 1. OGA-028 High Pressure Oxygen (O₂) Gage (Manifold Pressure) 2. OXH-030 High Pressure Oxygen (O₂) Supply Valve (Left Bank) 3. OXH-031 High Pressure Oxygen (O₂) Supply Valve (Left Bank) 4. OXH-032 High Pressure Oxygen (O₂) Supply Valve (Left Bank) 5. OXH-033 High Pressure Oxygen (O₂) Supply Valve (Right Bank) 6. OXH-034 High Pressure Oxygen (O₂) Supply Valve (Right Bank) 7. OXH-035 High Pressure Oxygen (O₂) Supply Valve (Right Bank) 8. OXH-029 High Pressure Oxygen (O₂) Isolation Valve 9. OXH-027 Gage Stop Valve 10. OXH-036 Oxygen (O₂) Manifold Vent Valve 11. OGA-025 Low Pressure Oxygen ((O₂) Gage (Chamber Control Console-Right) 12. OHL-024 Oxygen (O₂) Hand Loader (Regulator) 13. OGA-026 High Pressure Oxygen (O₂) Gage (Chamber Control Console-Left) 14. OXH-037 High Pressure Oxygen (O₂) Isolation Valve (Chamber Control Console Inlet, if installed) 15. OXL-020 Low Pressure Oxygen (O₂) Supply Valve (O/L Right) 16. OBR-023 Exhaust Back Pressure Oxygen (0₂) Regulator (O/L-Top Regulator) 17. OEX-038 Exhaust Oxygen (O₂) Valve (O/L-Upper Muffler) 18. ALP-014 Low Pressure Air Supply Isolation Valve (to O₂ Flow Meter) 19. ALP-040 Low Pressure Air Supply Valve (for O₂ Flow Meter) 20. ------------ Oxygen (O₂) Analyzer Vent 21. AGA-020 Depth Gage O/L (Inside Chamber) 22. AGA-021 Depth Gage I/L (Inside Chamber) 23. ELP-012 Exhaust Air Valve (O/L-Right) 24. ELP-011 Exhaust Air Valve (O/L-Left) 25. ALP-010 Low Pressure Air Supply Valve (O/L-Right) 26 ALP-009 Low Pressure Air Supply Valve (O/L-Left) Figure 1-3.  Flow Diagram (Sheet 2 of 3). 1-12