HIGH STATIC | 51
Ducted High Static
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DUCTED HIGH STATIC
Acoustic Data
Sound Pressure Data for M2 Units
Model
Rating
Fan
speed
E.S.P RPM CFM
Sound pressure level, Lp (dB one reference picopascals)
63Hz 125Hz 250Hz 500Hz 1kHz 2kHz 4kHz 8kHz
ARNU183M2A4
RETURN OPENING
H
0.24
890 673
37
39
39
41
40
33
27
20
M
840 512
36
38
38
41
40
33
26
19
L
820 425
36
38
38
40
39
32
26
19
CASING RADIATED
H
890 673
33
34
38
36
36
30
23
13
M
840 512
31
32
36
35
34
29
21
12
L
820 425
31
32
36
34
34
29
21
12
DUCTED DISCHARGE
H
890 673
46
39
39
42
43
38
31
26
M
840 512
44
38
38
41
41
37
29
24
L
820 425
44
38
37
41
41
36
29
24
ARNU153M2A4
RETURN OPENING
H
0.24
840 512
37
39
38
41
40
33
26
19
M
820 425
36
39
38
41
40
33
26
19
L
800 337
36
38
38
40
40
32
26
19
CASING RADIATED
H
840 512
32
33
37
35
35
30
22
13
M
820 425
31
32
36
35
34
29
21
12
L
800 337
31
32
36
34
34
29
21
12
DUCTED DISCHARGE
H
840 512
45
38
38
41
42
37
30
25
M
820 425
44
38
38
41
41
36
29
24
L
800 337
44
37
37
40
41
36
29
24
ARNU123M2A4
RETURN OPENING
H
0.24
840 512
37
39
39
42
41
33
27
20
M
820 425
37
39
38
41
40
33
27
19
L
800 337
37
39
38
41
40
33
26
19
CASING RADIATED
H
840 512
32
33
37
35
35
30
22
13
M
820 425
32
33
37
35
35
30
22
13
L
800 337
31
32
36
35
34
29
21
12
DUCTED DISCHARGE
H
840 512
45
39
39
42
42
37
30
25
M
820 425
45
38
38
41
42
37
30
25
L
800 337
44
38
38
41
41
36
29
24
ARNU093M2A4
RETURN OPENING
H
0.24
830 468
38
40
39
42
41
34
27
20
M
810 381
37
40
39
42
41
34
27
20
L
790 294
37
39
39
41
40
33
27
20
CASING RADIATED
H
830 468
33
34
38
36
36
30
22
13
M
810 381
32
33
37
35
35
30
22
13
L
790 294
32
33
37
35
35
29
21
12
DUCTED DISCHARGE
H
830 468
46
39
39
42
43
38
31
26
M
810 381
45
39
38
42
42
37
30
25
L
790 294
45
38
38
41
42
37
30
25
ARNU073M2A4
RETURN OPENING
H
0.24
830 468
38
40
40
43
42
35
28
21
M
810 381
38
40
40
42
41
34
28
21
L
790 294
38
40
39
42
41
34
27
20
CASING RADIATED
H
830 468
33
34
38
36
36
31
23
14
M
810 381
33
34
38
36
36
30
23
13
L
790 294
32
33
37
35
35
30
22
13
DUCTED DISCHARGE
H
830 468
46
40
40
43
43
38
31
26
M
810 381
46
39
39
42
43
38
31
26
L
790 294
45
39
39
42
42
37
30
25