A7™ Operating Instructions 046-004667-00 D - 3
Pneumatic Diagram Pneumatic Diagram of the A7 System
NO. DESCRIPTION NO. DESCRIPTION
1. O
2
Gas Pipeline Connection 36. Check Valve 3
2. O
2
Gas Cylinder Connection 37. Dual Vaporizer Block
3. N
2
O Gas Pipeline Connection 38. Ventilator
4. N
2
O Gas Cylinder Connection 39. Pressure Relief Valve (37.9 kPa)
5. Air Gas Pipeline Connection 40. Flow Restrictor
6. Air Gas Cylinder Connection 41. Latching Valve
7. Gas Cylinder Pressure Regulator (360
kPa)
42. Electronic ACGO Valve
8. Pressure Relief Valve (758 kPa) 43. Bypass
9. Pressure Relief Valve (Regulator) 44. CO
2
Absorber Canister
10. Drive Gas Inlet Filter 45. Check Valve
11. Gas Pipeline Pressure Gauge 46. Airway Pressure Gauge
12. Gas Cylinder Pressure Gauge 47. Inspiratory Flow Sensor
13. Check Valve 1 48. Expiratory Flow Sensor
14. Pressure Switch (220 kPa) 49. Watertrap
15. Pressure Regulating Valve (200 kPa) 50. Gas Bench
16. Pressure Regulator (200 kPa) 51. Check Valve
17. Inspiratory Flow Control Valve 52. APL Valve
18. Inspiratory Flow Sensor 53. Breathing Bag
19. Safety Valve (110 cmH
2
O) 54. Auto/Manual Bag Switch
20. PEEP Safety Valve 55. Bellows
21. Drive Gas Pressure Switch (140 kPa) 56. Pop-off Valve
22. PEEP Proportional Valve 57. Pressure Relief Valve (1 kPa, 10 cmH
2
O)
23. Flow Restrictor 58. Negative Pressure Check Valve
24. Exhaust Valve 59. Negative Pressure Check Valve (1 cmH
2
O)
25. Electronic Flow Control System 60. Gas Container 1
26. O
2
Flush Valve 61. Gas Container 2
27. System Switch 62. AGSS
28. Needle Valve 63. Auxiliary Air Flowmeter
29. Check Valve 2 64. Auxiliary Flow Needle Valve
30. Flow Sensor 65. Auxiliary O
2
Gas Power Outlet
31. Proportional Valve 66. Suction Regulator
32. 3-way Valve 67. Vacuum Gauge
33. Pressure Sensor 68. Overflow Safety Trap
34. Back Pressure Valve 69. Filter
35. Total Flowmeter 70. Collection Container
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