Puritan Bennett 980

Asset Type

Ventilator

Manufacturer

Puritan Bennett

Model

980

Manual Reference

Puritan Bennett 980 Series Ventilator Operator’s Manual, ©2012–2019 Covidien, Chapter 7 — Preventive Maintenance.

Manufacturer Recommendation / AEM Status

The operator’s manual separates routine operator maintenance from preventive maintenance performed by trained service personnel.

Manufacturer-Listed Service Intervals

Every 6 Months

Run the Extended Self Test, test the alarm system, and perform the Service Mode battery test on the primary and extended batteries.

Every 12 Months

Perform an electrical safety test, inspect the entire ventilator for mechanical damage, and inspect labels for illegibility.

After a 1,000-Foot Change in Altitude

Calibrate the atmospheric-pressure transducer when the ventilator’s location changes by 1,000 feet of altitude.

Every 3 Years or Upon Failed Battery Testing

Replace the ventilator primary battery, compressor primary battery when equipped, and ventilator or compressor extended batteries when installed.

Battery replacement may be required sooner when the Service Mode battery test fails, EST indicates exhausted battery life, or battery condition is unreliable. Actual battery life depends on use history and ambient conditions.

Every 10,000 Operational Hours

Replace the internal inspiratory filter, install the BDU 10K PM kit, complete and attach the PM label, and perform the post-installation tests specified in the service manual.

BDU 10K PM kit: P/N 10097275

The internal inspiratory filter must not be autoclaved or reused.

Oxygen Sensor

Replace the oxygen sensor annually from its installation date, or sooner as needed, and calibrate it after replacement. Sensor life may be shortened by higher operating temperatures or higher oxygen concentrations.

The ventilator tracks total operating hours and the hours remaining until the next preventive maintenance. The GUI and status display provide a notification when 500 hours or fewer remain before PM is due.

Important Manual Limitation

The supplied operator’s manual identifies maintenance intervals and general activities, but it does not provide the complete service-level 10,000-hour procedure, component replacement instructions, numerical electrical-safety limits, or all required post-maintenance performance tests. Those procedures are referenced to the Puritan Bennett 980 Series Ventilator Service Manual.

Do not represent this procedure as the complete manufacturer 10,000-hour PM procedure without the applicable service manual, required test equipment, and Puritan Bennett service training.

AEM Status

If the facility performs this PM at a different interval or modifies the manufacturer-listed activities, the change should be managed through the facility’s approved AEM program, documented risk assessment, maintenance history, and applicable regulatory requirements.

What This PM Procedure Covers

This procedure covers review of operating hours and maintenance status, exterior and mechanical inspection, label and power-cord inspection, battery condition and Service Mode testing, EST, alarm-system verification, SST, oxygen-sensor status and calibration, electrical safety testing, functional ventilation checks, review of 10,000-hour maintenance applicability, and service-log and CMMS documentation.

Required Tools and Equipment

Have the following available as applicable to the ventilator configuration and maintenance interval:

• Puritan Bennett 980-compatible air and oxygen supplies
• Approved patient circuit and filters
• Appropriate test lung
• Electrical safety analyzer
• Equipment and credentials required to enter Service Mode and perform EST
• Cleaning materials approved by the operator’s manual
• BDU 10K PM kit, P/N 10097275, when due
• Replacement batteries when due or failed
• Replacement oxygen sensor when due or failed
• Puritan Bennett 980 Series Ventilator Service Manual for service-level procedures

A calibrated ventilator analyzer may be required by the service manual or facility procedure for performance verification. The supplied operator’s manual does not define a complete analyzer-based PM test sequence.

Step-by-Step PM Procedure

1. Remove the Ventilator From Clinical Use

Confirm that the ventilator is not connected to a patient and has been released for maintenance.

Expected outcome: The ventilator can be tested without interrupting patient care.

2. Review Maintenance Status and Operational Hours

Power the ventilator and review:

• Total operational hours
• Hours remaining until scheduled preventive maintenance
• Current service or maintenance notifications
• Whether the 10,000-hour PM is due
• Battery installation or replacement dates, when documented
• Oxygen-sensor installation or replacement date, when documented

Expected outcome: The correct manufacturer-listed maintenance interval is identified.

Do not reset or document completion of a 10,000-hour PM unless the complete applicable procedure and required component replacement have been performed.

3. Review Logs

Enter Service Mode and review available diagnostic, alarm, service, and system logs.

Check for repeated EST or SST failures, battery-test failures, oxygen-sensor faults, gas-supply faults, pressure-transducer faults, ventilator-inoperative events, and unresolved technical alarms.

Expected outcome: No unresolved condition remains that could affect safe operation.

4. Perform Exterior and Mechanical Inspection

Inspect the following:

• GUI and touchscreen
• Breath Delivery Unit
• Base, casters, brakes, handle, and mounting hardware
• Flex arm and accessory brackets
• Power cord, plug, strain relief, and cord retainer
• Air and oxygen hoses and fittings
• Inspiratory and expiratory connections
• Exhalation-filter door and latch
• Battery compartments and covers
• Cooling vents
• Labels, warnings, serial-number label, and control markings

Check for cracks, loose components, contamination, damaged connectors, missing hardware, fluid intrusion, or illegible labels.

Expected outcome: The ventilator is mechanically secure, clean, undamaged, and properly labeled.

Remove the ventilator from service for structural damage, damaged electrical or gas connections, evidence of liquid intrusion, missing safety labels, or any condition that could affect safe operation.

5. Inspect Filters and Patient-Gas-Path Components

Inspect the external components applicable to the ventilator configuration:

• Inspiratory filter
• Exhalation filter
• Exhalation flow-sensor assembly
• Inlet air-filter bowl
• Compressor inlet filter
• Water traps and condensate collection components
• Neonatal door or adapter, when installed

Replace cracked, damaged, visibly contaminated, or expired disposable components.

The operator’s manual lists these additional maintenance intervals:

• Disposable exhalation filter: replace after each patient or after 15 days of continuous use
• Compressor inlet air filter: wash every 250 hours
• Exhalation flow-sensor assembly: replace after 100 disinfection cycles
• Exhalation flow-sensor assembly: disinfect according to institutional policy or when the SST flow-sensor cross-check fails

After exhalation flow-sensor installation or reinstallation, perform flow-sensor calibration and SST.

Expected outcome: Filters and gas-path components are correctly installed and free of damage or obstruction.

6. Check Scheduled Component Replacements

Batteries

Replace applicable batteries when they are three years old, the Service Mode battery test fails, EST indicates exhausted battery life, or physical damage, swelling, leakage, overheating, or unreliable operation is observed.

Oxygen Sensor

Replace the oxygen sensor annually from its installation date or sooner when performance indicates that replacement is required. Calibrate the sensor after replacement.

10,000-Hour Maintenance

When the ventilator reaches 10,000 operational hours:

• Replace the internal inspiratory filter.
• Install BDU 10K PM kit P/N 10097275.
• Complete and attach the PM label.
• Perform all post-installation testing specified in the service manual.

Expected outcome: All components due by age, operating hours, or test result have been replaced.

7. Perform Oxygen-Sensor Calibration

From the ventilator setup screen:

1. Open More Settings.
2. Locate the oxygen-sensor section.
3. Select Calibrate.
4. Allow the calibration to complete.
5. Perform the oxygen-sensor calibration test described by the operator’s manual.

Expected outcome: Oxygen-sensor calibration and calibration testing complete successfully without an oxygen-sensor fault.

8. Run Extended Self Test

Enter Service Mode and run the complete EST according to the ventilator prompts and applicable service instructions.

Do not bypass failed test steps merely to obtain an overall completion.

Document:

EST overall result: Pass / Fail =
Failed test or diagnostic code, if applicable:
Corrective action:

Expected outcome: EST completes with an overall passing result.

9. Perform Battery Test

Confirm that the primary and any installed extended batteries are recognized. Run the battery test through Service Mode as part of EST.

Document each applicable battery separately:

Ventilator primary battery: Pass / Fail =
Ventilator extended battery: Pass / Fail / Not installed =
Compressor primary battery: Pass / Fail / Not applicable =
Compressor extended battery: Pass / Fail / Not installed =

Verify transfer from AC power to battery operation without an unexpected shutdown or ventilator-inoperative condition.

Expected outcome: All installed batteries are recognized, pass testing, and support proper power transfer.

10. Test the Alarm System

Perform the manufacturer alarm-testing procedure.

Verify:

• Audible alarm output
• Visual alarm indicators
• Alarm banner or displayed message
• Alarm priority behavior
• Alarm-reset operation
• Audio-paused operation and indication
• BDU and GUI audible indicators
• Remote alarm or nurse-call output when included in facility PM policy

Document:

Alarm-system test: Pass / Fail =
Audible alarm: Pass / Fail =
Visual alarm indicators: Pass / Fail =
Remote alarm/nurse call: Pass / Fail / Not tested =

Expected outcome: Audible and visual alarm functions operate correctly.

An absent, weak, distorted, or intermittent audible alarm is a remove-from-service condition.

11. Perform SST With the Intended Test Circuit

Install the approved patient circuit, filters, humidification configuration, and test lung required for the intended patient type.

Run SST and verify that the configured breathing system passes:

• Circuit-pressure test
• Circuit-leak test
• Exhalation-filter test
• Exhalation-flow-sensor test
• Circuit-compliance calculation
• Circuit-resistance test
• Safety-valve test
• Oxygen-sensor test when included by the current software configuration

Document:

Circuit type: Adult / Pediatric / Neonatal
SST overall result: Pass / Fail =
Failed step, if applicable:

Expected outcome: SST completes with an overall passing result for the selected patient circuit.

12. Perform Functional Ventilation Check

Connect the ventilator to a test lung and verify basic operation using a facility-approved test configuration.

Check that:

• Ventilation starts and stops normally.
• Mandatory breaths are delivered consistently.
• Spontaneous triggering can be detected when tested.
• Pressure, flow, volume, and oxygen displays remain stable.
• Manual inspiration functions.
• PEEP is maintained.
• No unexplained technical alarms occur.
• The touchscreen, control knob, and hard keys respond correctly.

Use the applicable service manual or facility-approved ventilator-analyzer procedure for measured delivery-accuracy verification. The operator’s manual does not provide a complete scheduled PM analyzer test configuration.

Expected outcome: Ventilation and user controls operate normally without unresolved alarms or abnormal behavior.

Electrical Safety Testing

The manufacturer lists an electrical safety test every 12 months but does not provide numerical acceptance limits in the supplied operator’s manual. Apply the facility’s approved electrical safety procedure and applicable standard.

Ground Resistance

Ground resistance measured in ohms, expected ≤ 0.5 Ω or facility/NFPA 99 criteria if different:
Result =

Leakage Current

Touch/chassis leakage measured in microamps:
Facility limit used =
Result =
Pass / Fail =

Inspect the power cord, plug, strain relief, protective-earth connection, and power-cord retainer as part of the test.

13. Final Inspection and Return-to-Service Review

Confirm:

• EST passed.
• SST passed.
• Alarm testing passed.
• Installed batteries passed.
• Oxygen calibration passed.
• Electrical safety passed.
• No unresolved diagnostic or technical faults remain.
• Covers, filters, batteries, doors, and accessories are securely installed.
• Service Mode has been exited.
• The ventilator starts in normal operating mode.
• Required service and CMMS documentation is complete.

Expected outcome: The ventilator is complete, safe, and ready for clinical setup.

14. Enter the Maintenance Activity in the Ventilator Service Log

The manual instructs qualified service personnel to document the service date, time, and nature of the preventive maintenance in the ventilator’s electronic service log.

1. Enter Service Mode.
2. Select Logs.
3. Select Service Log.
4. Select Add Entry.
5. Enter the maintenance details.
6. Select Accept.

Expected outcome: The PM is documented in both the ventilator service log and the facility CMMS.

Pass / Fail Criteria

Pass

• Manufacturer-listed maintenance due at the current interval is completed.
• EST passes.
• SST passes with the intended circuit configuration.
• Alarm-system testing passes.
• Installed batteries pass testing and power-transfer verification.
• Oxygen-sensor calibration and testing pass.
• Electrical safety testing meets the documented facility criteria.
• No unresolved technical faults or diagnostic conditions remain.
• The ventilator is mechanically intact and properly labeled.
• Required service-log and CMMS entries are completed.

Remove From Service

Remove the ventilator from service when:

• EST or SST does not pass.
• An audible or visual alarm function fails.
• A battery fails testing or causes unreliable power transfer.
• Electrical safety testing fails.
• Oxygen-sensor calibration or testing repeatedly fails.
• A Vent Inop condition, technical fault, unresolved diagnostic code, or safety-valve problem remains.
• Gas fittings, power components, housings, casters, brakes, or structural parts are damaged.
• Fluid intrusion or contamination that cannot be safely corrected is present.
• Required 10,000-hour maintenance cannot be completed according to the service manual.
• Any condition remains that could affect breath delivery, monitoring, or alarm performance.

Use the manufacturer service manual, facility policy, and approved AEM program to determine the final PM interval and return-to-service requirements.