56 | HIGH STATIC
MUL
TI V Ducted Indoor Unit Engineering Manual
Due to our policy of continuous product innovation, some specifications may change without notification.
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DUCTED HIGH STATIC
Acoustic Data
Sound Pressure Data for M3 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
ARNU543M3A4
RETURN OPENING
H
0.24
1000
1744
33
40
41
44
46
38
33
28
M
960
1614
31
39
39
43
44
36
32
26
L
920
1482
30
37
38
41
41
33
28
20
CASING RADIATED
H
1000
1744
28
37
40
40
38
34
28
21
M
960
1614
26
35
38
38
36
32
27
20
L
920
1482
25
34
36
36
33
29
23
14
DUCTED DISCHARGE
H
1000
1744
43
40
44
49
49
44
41
38
M
960
1614
41
38
42
47
47
42
39
36
L
920
1482
36
36
41
45
44
38
35
28
ARNU483M3A4
RETURN OPENING
H
0.24
920
1482
30
37
39
42
41
33
28
20
M
840
1191
31
35
36
39
38
31
25
16
L
790
918
29
34
34
38
37
29
23
14
CASING RADIATED
H
920
1482
25
34
36
36
33
29
23
14
M
840
1191
28
30
34
35
31
27
20
9
L
790
918
27
28
32
33
29
25
19
8
DUCTED DISCHARGE
H
920
1482
36
36
41
45
45
39
35
28
M
840
1191
31
34
39
43
42
36
32
23
L
790
918
30
32
37
41
40
34
30
22
ARNU423M3A4
RETURN OPENING
H
0.24
910
1449
31
38
40
42
42
34
29
21
M
840
1191
31
36
36
40
39
31
25
16
L
790
918
30
34
35
38
37
29
24
15
CASING RADIATED
H
910
1449
26
35
37
37
34
30
24
14
M
840
1191
29
30
34
35
31
27
20
9
L
790
918
27
28
32
34
30
26
19
8
DUCTED DISCHARGE
H
910
1449
37
37
42
46
46
40
36
29
M
840
1191
32
34
39
43
42
36
32
24
L
790
918
30
32
38
41
40
34
30
22
ARNU363M3A4
RETURN OPENING
H
0.24
910
1449
31
39
40
43
42
34
29
21
M
840
1191
32
36
37
40
39
31
26
17
L
790
918
30
34
35
38
37
29
24
15
CASING RADIATED
H
910
1449
26
35
37
37
34
30
24
15
M
840
1191
29
30
34
35
31
27
21
10
L
790
918
27
29
33
34
30
26
19
8
DUCTED DISCHARGE
H
910
1449
38
37
43
46
46
40
36
29
M
840
1191
32
34
40
43
43
36
32
24
L
790
918
30
32
38
41
41
34
31
22
ARNU283M3A4
RETURN OPENING
H
0.24
850
1250
29
37
38
41
40
33
28
20
M
810
1017
31
36
36
40
39
31
25
16
L
770
837
30
34
35
38
37
29
24
15
CASING RADIATED
H
850
1250
25
34
35
36
32
29
23
13
M
810
1017
29
30
34
35
31
27
20
10
L
770
837
28
29
33
34
30
26
19
8
DUCTED
DISCHARGE
H
850
1250
35
35
41
44
44
38
34
27
M
810
1017
32
34
39
43
42
36
32
24
L
770
837
30
32
38
41
40
34
30
22