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33373-001 Version A
Contents
Chapter 1: Introduction ............................................................................................... 1-1
1.1 General Instructions ..................................................................................... 1-1
1.2 Recommended Tools & Equipment ............................................................. 1-1
1.3 Recommended Maintenance Schedules ..................................................... 1-2
Chapter 2: Theory of Operation .................................................................................. 2-1
2.1 General Device Description ......................................................................... 2-1
2.2 Pneumatic System Overview ....................................................................... 2-1
2.3 Oxygen Blending System ............................................................................. 2-2
2.4 Electronic Overview ..................................................................................... 2-2
Chapter 3: Disassembly and Assembly ...................................................................... 3-1
3.1 General Instructions and Warnings .............................................................. 3-1
3.2 Required Tools ............................................................................................ 3-1
3.3 Disassembly and Reassembly Procedures .................................................. 3-2
3.4 Right Panel Containing the Power PCB ....................................................... 3-4
3.5 Front Panel P/N 16345A .............................................................................. 3-5
3.6 Front Panel for VELA ColdFire 2 ................................................................. 3-6
3.7 Main PCB ..................................................................................................... 3-7
3.8 Flow Sensor Receptacle assembly .............................................................. 3-8
3.9 Exhalation Valve Assembly .......................................................................... 3-8
3.10 Blender Assembly ........................................................................................ 3-9
3.11 Turbine and Muffler Assembly ................................................................... 3-10
3.12 Inlet Filter Screen ....................................................................................... 3-11
3.13 Oxygen Sensor .......................................................................................... 3-11
3.14 Rear Panel ................................................................................................. 3-12
3.15 Fan and Filter Assembly ............................................................................ 3-12
3.16 Manifold Base Assembly ............................................................................ 3-13
Chapter 4: Software Download Procedure .................................................................. 4-1
4.1 Prior to Software Download ......................................................................... 4-1
4.2 Software Download ...................................................................................... 4-1
4.3 Ventilator Upgrade Procedure ..................................................................... 4-4
Chapter 5: One-Year P.M. Procedure ......................................................................... 5-1
5.1 Contents of PM kit P/N 11416 ...................................................................... 5-1
5.2 General Instructions and Warnings .............................................................. 5-1
5.3 Required Tools ............................................................................................ 5-2
5.4 Procedure .................................................................................................... 5-2
5.5 Two Year PM ............................................................................................. 5-14
Chapter 6: Calibration Procedure................................................................................ 6-1
6.1 Calibration .................................................................................................... 6-1
6.2 Calibration and Test Kit................................................................................ 6-2
Chapter 7: Operational Verification Procedure ........................................................... 7-1
7.1 UVT Functions Screen ................................................................................. 7-1
7.2 Performance Test ........................................................................................ 7-2
7.3 Operational Verification Procedure Checklist ............................................... 7-7