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FIGURE 4 - SUSPENSION ACCESSORY (HORIZONTAL) - KEU180
TABLE 3: SOUND POWER RATINGS
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| ESP | BLOWER |
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| SOUND POWER (dB | WATTS) |
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UNIT | CFM |
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| OCTAVE BAND CENTERLINE FREQUENCY (HZ) |
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MODEL |
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| IWG | RPM | BHP | 63 | 125 | 250 | 500 | 1,000 | 2,000 | 4,000 |
| 8,000 | SWL dB(a) | @ |
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| 10 FT.1 |
060 | 2,000 | 0.50 | 940 | 0.70 | 88 | 88 | 78 | 71 | 73 | 66 | 61 |
| 56 | 77 | 44 |
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090 | 3,000 | 0.60 | 750 | 1.05 | 88 | 88 | 78 | 73 | 71 | 66 | 61 |
| 56 | 77 | 45 |
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120 | 4,000 | 0.70 | 850 | 1.75 | 91 | 91 | 81 | 74 | 76 | 69 | 64 |
| 59 | 81 | 48 |
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180 | 6,000 | 0.75 | 750 | 2.75 | 95 | 95 | 85 | 80 | 78 | 73 | 68 |
| 63 | 84 | 52 |
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1. At a distance of 10 feet from the blower.
NOTE: | These values have been accessed using a model of sound propagation from a point source into the hemispheric free field. The dBA values provided are |
| for reference only. Calculation of dBA values cover matters of system design and the fan manufacturer has no way of knowing the details of each sys- |
| tem. This constitutes an exception to any specification or guarantee requiring a dBA value or sound data in any other form than sound power level rat- |
| ings. |
6 | Unitary Products Group |
