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40 VAV-PRC003-EN
Acoustics
Table 13. Discharge sound data
Note: NC data based on ARI 885-98 Acoustical transfer functions in Table 11.
Discharge
Size CFM ISP NC
6 in. 375 0.25 —
6 in. 375 0.5 —
6 in. 375 1 18
6 in. 375 2 22
6 in. 300 0.25
6 in. 300 0.5 —
6 in. 300 1 —
6 in. 300 2 19
6 in. 225 0.25 —
6 in. 225 0.5 —
6 in. 225 1 —
6 in. 225 2 16
6 in. 150 0.25 —
6 in. 150 0.5 —
6 in. 150 1 —
6 in. 150 2 16
6 in. 75 0.25 —
6 in. 75 0.5 —
6 in. 75 1 —
6 in. 75 2 16
6 in. 38 0.25 —
6 in. 38 0.5 —
6 in. 38 1 —
6 in. 38 2 15
8 in. 656 0.25 —
8 in. 656 0.5 16
8 in. 656 1 24
8 in. 656 2 30
8 in. 525 0.25 —
8 in. 525 0.5 —
8 in. 525 1 20
8 in. 525 2 25
8 in. 394 0.25 —
8 in. 394 0.5 —
8 in. 394 1 16
8 in. 394 2 22
8 in. 263 0.25 —
8 in. 263 0.5 —
8 in. 263 1 —
8 in. 263 2 23
8 in. 131 0.25 —
8 in. 131 0.5 —
8 in. 131 1 15
8 in. 131 2 24
8 in. 66 0.25 —
8 in. 66 0.5 —
8 in. 66 1 —
8 in. 66 2 20
Discharge
Size CFM ISP NC
10 in. 1031 0.25 —
10 in. 1031 0.5 15
10 in. 1031 1 21
10 in. 1031 2 27
10 in. 825 0.25 —
10 in. 825 0.5 —
10 in. 825 1 17
10 in. 825 2 22
10 in. 619 0.25 —
10 in. 619 0.5 —
10 in. 619 1 —
10 in. 619 2 20
10 in. 413 0.25 —
10 in. 413 0.5 —
10 in. 413 1 —
10 in. 413 2 19
10 in. 206 0.25 —
10 in. 206 0.5 —
10 in. 206 1 —
10 in. 206 2 19
10 in. 103 0.25 —
10 in. 103 0.5 —
10 in. 103 1 —
10 in. 103 2 18
12 in. 1500 0.25 —
12 in. 1500 0.5 15
12 in. 1500 1 21
12 in. 1500 2 29
12 in. 1200 0.25 —
12 in. 1200 0.5 —
12 in. 1200 1 17
12 in. 1200 2 25
12 in. 900 0.25 —
12 in. 900 0.5 —
12 in. 900 1 —
12 in. 900 2 22
12 in. 600 0.25 —
12 in. 600 0.5 —
12 in. 600 1 —
12 in. 600 2 21
12 in. 300 0.25 —
12 in. 300 0.5 —
12 in. 300 1 —
12 in. 300 2 20
12 in. 150 0.25 —
12 in. 150 0.5 —
12 in. 150 1 —
12 in. 150 2 19
Discharge
Size CFM ISP NC
14 in. 2000 0.25 —
14 in. 2000 0.5 17
14 in. 2000 1 24
14 in. 2000 2 30
14 in. 1600 0.25 —
14 in. 1600 0.5 —
14 in. 1600 1 19
14 in. 1600 2 26
14 in. 1200 0.25 —
14 in. 1200 0.5 —
14 in. 1200 1 15
14 in. 1200 2 23
14 in. 800 0.25 —
14 in. 800 0.5 —
14 in. 800 1 —
14 in. 800 2 23
14 in. 400 0.25 —
14 in. 400 0.5 —
14 in. 400 1 —
14 in. 400 2 23
14 in. 200 0.25 —
14 in. 200 0.5 —
14 in. 200 1 —
14 in. 200 2 20
16 in. 2625 0.25 —
16 in. 2625 0.5 17
16 in. 2625 1 25
16 in. 2625 2 32
16 in. 2100 0.25 —
16 in. 2100 0.5 —
16 in. 2100 1 23
16 in. 2100 2 29
16 in. 1575 0.25 —
16 in. 1575 0.5 —
16 in. 1575 1 22
16 in. 1575 2 27
16 in. 1050 0.25 —
16 in. 1050 0.5 —
16 in. 1050 1 —
16 in. 1050 2 22
16 in. 525 0.25 —
16 in. 525 0.5 —
16 in. 525 1 —
16 in. 525 2 23
16 in. 263 0.25 —
16 in. 263 0.5 —
16 in. 263 1 —
16 in. 263 2 23