Sound Performance - Bryant LEGACY 558J Product Data

Single package rooftop cooling unit 3 to 6 nominal tons
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Table 4 – SOUND PERFORMANCE TABLE
UNIT
A ---Weighted
04
80
05
81
06
78
07
78
LEGEND
dB --- Decibel
OUTDOOR SOUND (dB)
63
125
250
90.6
80.9
80.2
90.9
84.6
79.5
84.0
82.2
76.3
88.8
81.8
76.9
500
1000
2000
76.0
74.6
71.3
77.9
76.5
71.1
74.8
72.5
68.8
74.4
73.3
69.8
NOTES:
1. Outdoor sound data is measure in accordance with ARI
standard 270---95.
2. Measurements are expressed in terms of sound power.
Do not compare these values to sound pressure values
because sound pressure accounts for specific environ-
mental factors which do not match individual applica-
tions. Sound power values are independent of the envir-
onment and therefore more accurate.
3. A ---weighted sound ratings filter out very high and very
low frequencies, to better approximate the response of
"average" human ear. Bryant's A ---weighted measure-
ments are taken in accordance with 270---95.
10
4000
8000
68.5
63.9
66.9
62.5
65.6
61.8
66.3
62.7

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