Cooling-package accepted-service scenario
22 weeks · assumedmodeled
| Value kind | modeled — Interpret this value according to its displayed kind, scope, source, and as-of date. |
|---|---|
| Scope | Assumed cooling-package sequence on one calendar from release. A separate self-powered rig flushes isolated piping; installed CDU startup and tests await utility. Chapter 6.6’s worked case states every input, civil/utility crossover and release owner; Chapter 2.1 owns the network method. No supplier duration range is established. |
| As of | 2026-09-08 |
| Source | GAO Schedule Assessment Guide, December 2015, method reference; guide scenario authored September 8, 2026. Durations are assumptions, not market lead times. · Sequencing activities and identifying the critical path; applied through Chapter 2.1 |
| Derivation | Use the network from Chapter 2.1 . Installation finishes at max(12, 14) + 3 = week 17. The independent rig completes fluid acceptance at 17 + 2 = week 19. Energized startup finishes at max(19, 18) + 1 = week 20; functional and integrated acceptance then finish at 20 + 2 = week 22. Accepted service is max(22, 20) = week 22 . Delivery is the controlling predecessor to installation; civil has two weeks before it reaches that gate. Select the baseline package sequence and protect its cleaning and test windows. The civil flip is explicit. Site readiness at week 18 gives installation at 21, readiness at 24 and accepted service at week 26 . Civil becomes controlling above week 14, so paying to expedite an already-delivered CDU does not recover this slip. In the utility flip, utility at week 24 delays startup until then: max(19, 24) + 1 = week 25, followed by two test weeks, gives accepted service at week 27 . Utility becomes controlling above week 19, when fluid acceptance is otherwise ready. Fix the delayed gate, not the test duration. This is why the concrete can own the finish even on a project famous for electrical lead times. Release each step from its actual record: the GC confirms slab/access and supports; the installing contractor closes joints and installation inspection; the cooling specialist supplies the flush and fluid-quality evidence; the commissioning authority accepts the test scope; the authority grants the required use/occupancy permission. The owner accepts the block only after those gates close. GAO supplies the schedule method, Chapter 2.1 owns the integrated network, Chapter 5.13 owns hydraulic qualification, and Chapter 13.5 owns cooling acceptance. |
| Review | checking…review by 2027-03-08 · standard cadence |
| Recorded changes | last 2026-09-16 |
| Claim id | guide2-t28-cooling-package-scenario |
Where the guide uses it
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