Data Center Lab · Errata and Open Questions · Failure Postmortem

Heat-Rejection Site Was Taken From a Substation Name, Then Reversed

The discrepancy between a substation name and the project's own state was raised as a change candidate at the first revision, and the ruling required the chapter holding the correct state to alter its wording.

Column model height register table listing per-column family, type and model height
Column model-height register: the kind of per-identity table these articles audit (study — not cut lengths).

The heat-rejection chapter still prints the sentence in which it ordered the other chapter to change, and then prints the sentence that reverses it. One upstream chapter had described the summer extreme case by the state the project is actually in. This chapter had recorded the site as a town in a different state, having taken that town's name from a utility substation. The earlier revision declared that it would proceed on the wrong site and registered a change candidate requiring the correct chapter to alter its wording [TARGET]. The later text reverses the candidate: the wrong file was this one.

The Wrong Ruling Was Kept for Traceback, Not Deleted

The shared memory already required a conflict to be registered as a change candidate rather than resolved by picking a side. The predecessor revision knew the two chapters disagreed and still picked a side. That is the document turn. The later text does not delete the wrong ruling. It keeps the original wording for traceback and rewrites the change candidate from "the other chapter must change its place-name" to "this chapter corrects its own site premise and downgrades every weather-derived conclusion."

The errata chapter that proposed the correction is itself a proposal. It did not modify any existing file. Its replacement paragraphs have no force until the overall controller accepts a controlled change.

Four Site-Dependent Chains Take the Wrong Branch Silently

Geography is clarified in one line of the errata chapter: the name appearing in the project text is the proper name of a substation or load point on the utility side, and is not the name of the place the project is in. Four chains run off site geography, and each takes the wrong branch if that name is read as a place [TARGET]. Weather is the first. Second is the fire and authority-approval path. Third is the wind, snow and seismic parameter set, which is selected by coordinates. Fourth is the utility jurisdiction the interconnection is negotiated in. None of the four raises an error at any merge step, the errata records, so they surface together, at record-engineer review or at submission.

Weather-Derived Figures Were Downgraded, Not Deleted

Everything hanging off the weather chain went with it: design dry-bulb and wet-bulb, approach temperature, the annual temperature-frequency distribution, the heat-rejection capacity checks, the margin checks, and the two annual efficiency ratios. Those placeholder values were downgraded to unconfirmed and deletion of the numbers was forbidden. They stay on display, annotated as a wrong chain kept for traceability, on the stated reasoning that deleting them would leave downstream documents unable to recognise what they had cited.

Structure survived because of an earlier drafting rule. Every downstream reference had been required to cite the operating-case code rather than the temperature, so the three case codes remain valid and only the values behind them lapsed, with no site validity [TARGET]. Formulas still hold as formulas and pass criteria still hold as criteria. What they establish is that the arithmetic is reproducible under a set of placeholder inputs, not that the conclusion holds for this project.

Geography Is Closable; Weather Recomputation Has Not Started

Disposition runs on a closed set of four states in that chapter, and the geography item and the recomputation were deliberately split across two of them [TARGET]. Geography is recorded as immediately closable. Recomputation is recorded as a separate segment that has not started. An explicit instruction says the pair may not be booked as closed while only the first half is done. Four chapters are named as carrying the wrong site premise: the heat-rejection chapter itself, the space model, the fire and life-safety basis and the controls basis [TARGET].

Should a named weather source arrive with its station number, dataset version, data years and distance from the site, the placeholder columns are replaced and the argument chain is untouched. Five gate conditions stand before that recomputation may begin, covering confirmed coordinates and elevation, the named source, the chosen design percentile, a full annual hourly series of 8,760 hours [TARGET], and a one-pass synchronisation of every downstream reference. All five are unobtained. The chapter states in its own text that it has not recomputed, has produced no replacement figures, and forbids carrying the old values across on the argument that two climates are close.

An independent check of the later heat-rejection text treated the geography half as closed at item level and the weather half as still open, and forbade reading the geography close as a site-valid efficiency figure.

Limits and open items

Confirmed: the name appearing in the project text is a substation or load-point name, not the name of the place; the predecessor revision proceeded on the wrong site and the later text reversed that candidate. [FACT]

Register figures, not a campaign: four downstream chains; five unobtained gate conditions, including an 8,760-hour annual series; three operating-case codes with no values behind them; four chapters named as carrying the wrong site premise; two segments, only the first of which may be closed on text. [TARGET]

Open: written controller confirmation of the geography half; any of the five weather gates; a named reader for a fifth file; a list of files examined for the wrong site premise and found clean. [HOLD]

Closure evidence named for the first half has three parts, and only one of them is an absence: that those four chapters no longer use the substation name as a site name, that each carries the replacement site premise or an equivalent, and that the overall controller confirms it in writing [TARGET]. None of the three has been recorded. In its own opening the errata chapter states that it did not reopen any file outside its disposition matrix, so those four are the files it knew to examine.

The two halves are not independent. The recomputation segment may not start until the geography item closes, which the entry states directly, so the written confirmation nobody has given is also what holds the five weather gate conditions shut.

Nothing here has been reviewed or sealed by an Engineer of Record. Nothing describes how any installed system behaved.

Written Confirmation Still Holds the Weather Gates Shut

No list exists of which files were examined for the wrong site premise and found clean, and no reader has been named for a fifth. Until that written confirmation exists, the weather chain remains a formula template with no site force.


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Source: K&K Data Service Inc., “Heat-Rejection Site Was Taken From a Substation Name, Then Reversed,” https://www.kkdatasvc.com/lab/errata-and-open-questions/the-site-name-conflict-was-found-and-adjudicated-backwards/.

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