PEIEN ASD Lifecycle Services

When it applies

The system has been operating for some time, but its condition is not fully documented. Airflow, filtration and sampling-pipe condition need to be checked again.

Service scope

• Inspect the detector, sampling pipes, filtration and site operating conditions within the agreed scope.
• Record abnormalities, risks and recommended next steps.

Information needed

• Brand, model, equipment quantity, site location and years in operation.
• Drawings, maintenance and fault records, and available access or work windows.

Implementation process

• Review the available information and agree the inspection scope.
• Inspect on site, document findings and review the results.

Deliverables and acceptance

• An equipment condition list, inspection records and itemised recommendations.
• Acceptance based on the agreed inspection items and completeness of the records.

Limitations and separate assessment

• Work at height, concealed pipes, shutdowns and interlock testing require separate assessment.
• Repairs, parts and modifications are not automatically included in the inspection scope.

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When it applies

Abnormal airflow, recurring faults or unexplained alarms require investigation of the equipment, pipe network and environment together.

Service scope

• Review the reported symptoms, logs, equipment condition and relevant operating conditions.
• Inspect and test where conditions permit, separating confirmed causes from matters still to be verified.

Information needed

• Fault codes, timing, frequency and site photographs.
• Brand, model, operating logs and recent construction or environmental changes.

Implementation process

• Review the symptoms and available information, then agree the diagnostic scope.
• Test on site, analyse causes and review the recommended actions.

Deliverables and acceptance

• Diagnostic records and a list of confirmed and unresolved findings.
• Recommended actions and conditions for further verification, recorded for agreement by both parties.

Limitations and separate assessment

• Available information, access permissions and the ability to reproduce the fault affect the assessment.
• Diagnosis does not establish a fixed repair time or mean that the equipment has been repaired.

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When it applies

A planned approach is needed to check operating condition, filtration and pipework, reducing the accumulation of issues and repeated interventions.

Service scope

• Define inspection, maintenance and testing items using equipment requirements and site conditions.
• Track abnormalities and changes in condition before and after the work.

Information needed

• An equipment register, environmental conditions and operating requirements.
• Maintenance history, manufacturer requirements and available maintenance windows.

Implementation process

• Agree maintenance items and intervals, and confirm the working conditions.
• Carry out the plan, retest and update maintenance records.

Deliverables and acceptance

• A maintenance plan, execution records and a list of unresolved items.
• Check each agreed item and its records; the absence of faults does not replace acceptance checks.

Limitations and separate assessment

• Intervals, test methods and impact on the system require project-specific assessment.
• Unplanned repairs, component replacements and additional equipment are agreed separately.

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When it applies

A fault has been identified in equipment or a component, requiring assessment of the repair route, part compatibility and verification after restoration.

Service scope

• Assess the feasibility of on-site work, workshop repair or component replacement.
• Retest the agreed repair or replacement work.

Information needed

• Model, serial number, fault records and completed diagnostic information.
• Part details, system interfaces, shutdown windows and site access conditions.

Implementation process

• Confirm the repair scope, part compatibility and quotation conditions.
• Arrange the work, record replacements and retest after restoration.

Deliverables and acceptance

• Repair or replacement records, a component list and retest results.
• Completion confirmed against the agreed functional checks and acceptance items.

Limitations and separate assessment

• Supply, manufacturer support, workshop repair conditions and logistics lead times require individual confirmation.
• Charges for parts, consumables, travel and specialist work are agreed for each project.

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When it applies

Ageing equipment, discontinued models or limited spare-part availability require a practical replacement plan.

Service scope

• Verify the status of the existing model and the support documentation available.
• Assess candidate models, pipework, interfaces and implementation requirements.

Information needed

• Existing models, years in operation, and equipment and pipe-network drawings.
• Interface and interlock requirements, local requirements and available modification windows.

Implementation process

• Survey the current system and identify replacement constraints.
• Compare options, confirm the scope and plan implementation and acceptance.

Deliverables and acceptance

• Replacement recommendations, a list of differences and risks, and a proposed phased approach.
• Actual replacement follows separately agreed design, testing and acceptance conditions.

Limitations and separate assessment

• A model name alone is not sufficient to establish direct interchangeability.
• Pipe-network calculations, approvals, interface changes and regulatory review requirements must be checked again.

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When it applies

Changes to the protected area, site layout or operating conditions require reassessment and possible extension of the existing system.

Service scope

• Assess new requirements for expanded areas, layout changes, interfaces and operational management.
• Coordinate candidate solutions, equipment selection and implementation changeovers.

Information needed

• Existing system drawings, equipment parameters and the proposed changes.
• New operating conditions, protection objectives, system interfaces and project stage.

Implementation process

• Review the current system and new requirements, then confirm design inputs.
• Assess the technical options, agree implementation boundaries and arrange retesting and acceptance.

Deliverables and acceptance

• Upgrade recommendations, equipment and interface requirements, and testing and acceptance checklists.
• Delivery confirmed against the design and functional verification agreed for the project.

Limitations and separate assessment

• Design, installation, interlock and approval responsibilities must be allocated for each project.
• Candidate solutions require review against site conditions, pipe-network calculations and official product documentation.

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When it applies

Multiple sites, different equipment and separate service arrangements require consistent responsibilities and record formats.

Service scope

• Create agreed schedules by site, brand, model and service item.
• Coordinate request intake, service records, unresolved items and head-office reporting.

Information needed

• Site and equipment lists, brands and models, current condition and service history.
• Regional distribution, service objectives, responsibility interfaces and procurement requirements.

Implementation process

• Assess scope and responsibilities before onboarding.
• Record intake, actions and acceptance during service, then develop plans through annual review.

Deliverables and acceptance

• Service registers, acceptance records and consolidated reports within the agreed scope.
• Confirm records by site and service item, and track unresolved issues.

Limitations and separate assessment

• Regional organisation, response arrangements and brand support require individual assessment.
• Request acknowledgement, site attendance and repair times are agreed separately, with clear parts and pricing boundaries.

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