HIGH STATIC | 49
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
0.20
840
640
35
40
38
41
39
32
25
17
M
820
520
35
40
38
41
39
32
25
17
L
800
435
34
39
37
40
38
32
25
17
CASING RADIATED
H
840
640
31
35
37
34
33
27
19
12
M
820
520
30
35
37
33
33
27
18
11
L
800
435
30
34
36
33
32
26
18
11
DUCTED DISCHARGE
H
840
640
43
38
40
42
41
36
29
22
M
820
520
42
37
40
41
41
36
28
22
L
800
435
42
36
39
41
40
35
28
21
ARNU153M2A4
RETURN OPENING
H
0.20
820
520
35
40
38
41
39
32
25
17
M
800
435
35
40
38
41
39
32
25
17
L
780
363
35
39
38
41
38
32
25
17
CASING RADIATED
H
820
520
31
35
37
34
33
27
18
12
M
800
435
30
35
37
33
33
27
18
11
L
780
363
30
34
36
33
32
26
17
11
DUCTED DISCHARGE
H
820
520
43
37
40
42
41
36
29
22
M
800
435
42
37
39
41
41
36
28
22
L
780
363
42
36
39
41
40
35
28
21
ARNU123M2A4
RETURN OPENING
H
0.20
820
520
36
40
39
42
39
33
26
18
M
800
435
35
40
38
41
39
32
26
18
L
780
363
35
40
38
41
39
32
25
17
CASING RADIATED
H
820
520
31
36
38
34
34
28
19
12
M
800
435
31
35
37
34
33
27
18
12
L
780
363
30
35
37
33
33
27
18
11
DUCTED DISCHARGE
H
820
520
43
38
40
42
42
37
29
23
M
800
435
43
37
40
42
41
36
29
22
L
780
363
42
37
39
41
41
36
28
22
ARNU093M2A4
RETURN OPENING
H
0.20
810
477
36
41
39
42
40
33
26
18
M
790
399
36
41
39
42
40
33
26
18
L
770
327
36
40
39
42
39
33
26
18
CASING RADIATED
H
810
477
32
36
38
34
34
28
19
12
M
790
399
31
36
38
34
33
28
19
12
L
770
327
31
35
37
34
33
27
18
12
DUCTED DISCHARGE
H
810
477
44
38
41
42
42
37
30
23
M
790
399
43
38
40
42
42
37
29
23
L
770
327
43
37
40
41
41
36
29
22
ARNU073M2A4
RETURN OPENING
H
0.20
810
477
37
41
40
43
41
34
27
19
M
790
399
36
41
39
42
40
34
27
19
L
770
327
36
41
39
42
40
33
26
18
CASING RADIATED
H
810
477
32
37
39
35
34
29
20
13
M
790
399
32
36
38
35
34
28
19
13
L
770
327
31
36
38
34
34
28
19
12
DUCTED DISCHARGE
H
810
477
44
39
41
43
43
38
30
24
M
790
399
44
38
41
42
42
37
30
23
L
770
327
43
38
40
42
42
37
29
23