Handover With Substituted Devices and Missing Records
A 96-device system is complete and working. During the job, three devices were substituted for a different model because of a supply delay; the as-built drawings still show the original part numbers. Two zone labels on the panel do not match the floor plans, and the gatehouse device address was reused after a swap, so the address list contains a duplicate. The O&M manuals were never issued, and the battery calculation on file predates a panel upgrade. The general contractor wants the handover pack signed Friday to release final payment, and the facility manager can only attend training on Friday morning. The owner's representative says the labels "can be sorted by the next guy."
1. What must be corrected before you sign the handover, and what can legitimately follow as a punch-list item with a date?
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Must be correct before signing:
- Duplicate address - this is a functional defect. Two devices sharing an address means one may not report, and the panel's device count and event text will be wrong. Resolve, re-verify, and re-record.
- Zone labels - a mislabelled zone sends responders to the wrong area. This is a five-minute fix and there is no defence for deferring it.
- As-built device schedule - must show the devices actually installed, with current part numbers, so future maintenance and any code review work from truth.
Can be punch-listed with a firm date:
- O&M manuals, if a written commitment and delivery date is recorded and the owner accepts it.
- Updated battery calculation, once the panel's actual load is re-measured - but the load must be measured, not assumed.
Reasoning: the split is between items that affect how the system performs tonight and items that affect how it is maintained next year. "The next guy" is exactly who relies on the labels.
2. How do you handle the three substituted devices and the stale battery calculation?
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Substituted devices:
- Confirm the substitutes are listed for the application and compatible with the panel - a substitution is only acceptable if it meets the same performance and compatibility requirements.
- Where the substitution was not previously approved, raise it formally with the owner or their representative and the authority having jurisdiction before sign-off, and record the outcome.
- Update the device schedule and drawings to the installed part numbers, with the substitution noted and dated. Do not issue drawings that describe equipment that is not there.
Battery calculation:
- Re-measure standby and alarm current with the current panel and device set; do not carry forward numbers from the pre-upgrade panel.
- Recalculate with the agreed standby and alarm durations plus the aging allowance, and replace the old sheet in the handover pack.
- If the recalculated requirement exceeds the installed capacity, that is a deficiency, not a documentation update - raise it as such.
3. The GC pushes for the signature on Friday and offers to "hold back" the documentation. What is your position, and what does the handover pack contain?
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Position: the functional items are fixed first, then I sign. Holding back documentation does not convert a duplicate address or a wrong zone label into an acceptable condition - those are the things the owner will rely on during a real event. I would rather deliver a complete pack two days late than a signed pack that is wrong.
Handover pack contents:
- As-built drawings and device schedule matching what is installed, including substitutions.
- Test and inspection records with results, dates, and the tester's name.
- Current battery calculation based on measured load.
- O&M manuals, panel programming record, and default/access credentials handed over securely.
- Written deficiency list with agreed close-out dates for anything punch-listed.
- Training record: attendees, topics covered, date, and signature - I would run Friday's session but record it as training on the system as installed, with a short follow-up on the corrected labels once they are done.
- Warranty terms and service contact details.
Reasoning: the certificate and the pack are the owner's only evidence of what they bought. Everything in it should be defensible months later without you in the room.