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Performance Summary For CU-3 <br />Project: Ramsey WTP <br />Prepared By: Tim May <br />Advanced Acoustics Parameters <br />1. Unit height above ground: 1.0 ft <br />2. Horizontal distance from unit to receiver: 20.0 ft <br />3. Receiver height above ground: 5.7 ft <br />4. Height of obstruction: 0.0 ft <br />5. Horizontal dist. from obstruction to receiver: 0.0 ft <br />6. Horizontal dist. from unit to obstruction: 0.0 ft <br />Detailed Acoustics Information <br />/////////////////i <br />10/10/2024 <br />09:24AM <br />0 <br />J Octave Band Center Frequency, Hz 31 63 125 250 500 1 k 2k 4k 8k Overall <br />Sound Power Levels at Unit's Acoustic Center (Lw), dB 85 65 69 71 83 79 74 69 62 88 <br />A-Wgted Sound Power Levels at Unit's Acoustic Center 46 39 53 63 80 79 75 70 61 83 <br />(LwA), dBA <br />Sound Press. Levels at Dist. Specified above (Lp), dB 61 40 45 47 58 55 50 45 38 64 <br />A-Wgted Sound Press. Levels at Dist. Specified above 21 14 28 38 55 55 51 46 36 59 <br />(LpA), dBA <br />Calculation methods used in this program are patterned after the ASHRAE Guide; other ASHRAE Publications and the AHRI <br />Acoustical Standards. While a very significant effort has been made to insure the technical accuracy of this program, it is assumed <br />that the user is knowledgeable in the art of system sound estimation and is aware of the tolerances involved in real world acoustical <br />estimation. This program makes certain assumptions as to the dominant sound sources and sound paths which may not always be <br />appropriate to the real system being estimated. Because of this, no assurances can be offered that this software will always generate <br />an accurate sound prediction from user supplied input data. If in doubt about the estimation of expected sound levels in a space, an <br />Acoustical Engineer or a person with sound prediction expertise should be consulted. <br />Commercial Split Systems Builder 1.67 Page 7 of 15 <br />