ResMed Astral™ 100 / 150 — Official Service Manual – PDF DOWNLOAD

Description

ResMed Astral™ 100 / 150 — Official Service Manual – PDF DOWNLOAD

description

This OEM Service Manual is your bench reference for the Astral series ventilators. It explains how the device works, how to test and calibrate it with the ResMed Service Software, and how to safely replace/verify sub-assemblies—all with clearly sequenced checklists.

What’s inside

Foreword & scope

• Intended users, training levels/permissions, and how to use the manual.

• Recommended maintenance schedule & service-center handling/log capture.

1) General instructions

• Power supply, EMC, storage/transport, recycling, ESD precautions with bench, floor, wrist/heel straps, and antistatic handling.

2) Function & operation

• Models covered: Astral 100 and Astral 150 (differences table).

• System/block overview: Main PCB (Power Block, Main Controller, Pneumatic Controller, Hardware Alarm Controller), pneumatic block, UI/top case.

• Sensor map & ranges (PEEP, flows, outlet/proximal/trigger pressures, ambient/barometric, O₂ cell, temps).

• Safe states for faults (main/PEEP blowers off; NRV/PRV activated; I:E deactivated).

• Oxygen management (low-flow O₂ up to 30 L/min; FiO₂ sensor & alarms).

• Power management (AC, internal, external DC, external battery) & shutdown/forced shutdown steps.

3) Test & calibration procedures

• Equipment list (flow analyser accuracy reqs, electrical safety analyser), Service Software kit #19688 contents, connection steps (USB/Ethernet).

• Full test suite (highlights):

  • Learn circuit (single/double circuit), temperature sensors, heated flex (150), leak test, NRV & safety valve tests, PEEP blower test, pressure & flow calibration tests, outlet pressure model test, cooling fan, alarms, max pressure, remote alarm, USB/SpO₂ ports, LCD/LED/keypad, internal battery/super-cap, current consumption, IEC 62353 electrical safety.

• Calibration procedures: Pressure calibration, Flow calibration, Outlet pressure model (must be run after pressure/flow).

4) Preventative maintenance

• Two-year maintenance & verification sequence; torque confirmation and end-of-procedure checks.

5) Corrective maintenance (major replacements)

• Opening/closing unit; battery, top case, cooling fan, motor capacitor, buzzer, pneumatic block, thermistor/inlet, outlet tube, O₂ adapter, heated flex, Main PCB, chassis, O₂ sensor, expiratory flow sensor/membrane/adapter, air filter, external battery; spare parts list.

6) Troubleshooting

• Learn circuit flow, device info & error log, therapy alarms & system failures listings.

7) Technical specifications

• General specs; monitoring; time/volume/flow/pressure params; control accuracies.

Appendices

• Service/maintenance forms (2-year & 35,000-hour), pneumatic block components disassembly/reassembly & parts.

Why this manual matters (practical uses)

• Run factory-specified calibrations (pressure, flow, outlet pressure model) after parts replacement.

• Verify ventilation hours/PEEP hours and decide pneumatic block replacement timing (e.g., 35,000-hour benchmark).

• Perform complete alarm/port/PCB/UI diagnostics and IEC 62353 safety checks post-service.

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