• Fans — 57

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Showing 25–48 of 57

How the model reads against CaptiveAire's data

Fan power through the fan laws, one curve per fan from a US multi-rating table	2 813 cells over 57 fans; 49 withheld by name	every held cell's BHP within 2 % plus the half-hundredth it is printed to (the worst at 0.984 of that band; one cell from 0.5 BHP past a bare 2 %, at 2.4 %) and its speed within 0.95 %, read back by the solver's own fan-law solve; RMS 0.41 % on power over the 1 845 cells from 0.5 BHP up. Withheld: 41 cells at the high-static end of a low-flow row, left of the wheel's pressure peak; 6 off the fan laws; 2 printed slips (a 1 in. cell repeating its row's 0 in. figures, a 2.25 in. cell 168 rpm under the 2 in. one). The stainless copies print 71 of their sizes' cells a second time, all within rounding. The SIF9DD and its copy are not listed: their best static efficiency is under 0.2. Each rating lies on its curve (the curve's static at the design flow within 1.00 % of the design static), and the efficiency a listing states is the curves' read there — DU10HFA's best printed cell, 0.02 BHP, would claim 0.383 on input power where its curve reaches 0.353
R454B's saturation line — the properties every R454B map in the catalog runs on — against a maker's printed pressure–temperature table	40 temperatures × 2 lines, −40 to 155 °F (160–170 °F lie past the top of the backend's R454B line, 71 °C)	one offset, not scatter: at every temperature the backend's dew point is 0.05–0.15 K under the printed one (its dew pressure 0.2–0.5 % over) and its bubble point 0.26–0.33 K under (0.5–1.3 %), so its glide is about 0.2 K wider than the table's. The table does not say whose equation of state it prints, so the offset is held as a bracket on that side, not fitted

From the validation page; every row is held by a test.

Listed from published data with the source named on every entry; a listing's figures are the manufacturer's, the model that runs them is ours. Solver results never depend on who has claimed what.