70 | 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 Power Data for M3 Units
Model
Rating
Fan
speed E.S.P RPM CFM
Sound power level, Lw (dB one reference picowatt)
63Hz 125Hz 250Hz 500Hz 1kHz 2kHz 4kHz 8kHz
ARNU543M3A4
RETURN OPENING
H
0.20
970
1720
39
49
51
55
55
49
45
39
M
920
1558
39
48
50
54
55
48
44
39
L
880
1424
38
46
48
52
52
45
41
34
CASING RADIATED
H
970
1720
35
45
48
50
48
45
35
35
M
920
1558
34
44
47
49
47
44
39
32
L
880
1424
36
42
44
46
44
41
37
29
DUCTED DISCHARGE
H
970
1720
47
47
53
59
59
55
53
49
M
920
1558
46
46
53
58
58
54
52
49
L
880
1424
47
43
51
55
55
50
48
43
ARNU483M3A4
RETURN OPENING
H
0.20
890
1457
38
46
48
52
52
45
41
34
M
820
1189
36
44
45
49
49
43
39
31
L
760
952
33
41
43
47
47
40
36
29
CASING RADIATED
H
890
1457
36
42
44
47
45
41
36
36
M
820
1189
34
40
42
45
42
39
35
27
L
760
952
32
38
40
43
41
37
33
25
DUCTED DISCHARGE
H
890
1457
48
44
51
55
55
51
49
44
M
820
1189
45
41
48
52
52
48
46
41
L
760
952
42
38
46
50
50
45
43
38
ARNU423M3A4
RETURN OPENING
H
0.20
850
1327
37
45
47
51
51
44
40
33
M
800
1097
35
43
45
49
49
42
38
31
L
760
952
33
41
43
47
47
40
36
29
CASING RADIATED
H
850
1327
35
41
43
45
43
40
35
35
M
800
1097
33
39
41
44
42
38
34
26
L
760
952
32
38
40
43
41
37
33
25
DUCTED DISCHARGE
H
850
1327
46
42
50
54
54
49
47
42
M
800
1097
44
40
48
52
51
47
45
40
L
760
952
42
38
46
50
50
45
43
38
ARNU363M3A4
RETURN OPENING
H
0.20
850
1327
37
45
47
51
51
44
40
33
M
800
1097
35
43
45
49
49
42
38
31
L
760
952
33
41
43
47
47
40
36
29
CASING RADIATED
H
850
1327
35
41
43
45
43
40
35
35
M
800
1097
33
39
41
44
42
38
34
26
L
760
952
32
38
40
43
41
37
33
25
DUCTED DISCHARGE
H
850
1327
46
42
50
54
54
49
47
42
M
800
1097
44
40
48
52
51
47
45
40
L
760
952
42
38
46
50
50
45
43
38
ARNU283M3A4
RETURN OPENING
H
0.20
830
1235
36
44
46
50
50
43
39
32
M
790
1060
35
42
44
48
48
42
37
30
L
750
915
33
41
43
47
47
40
36
29
CASING RADIATED
H
830
1235
34
40
42
45
43
39
34
34
M
790
1060
33
39
41
44
41
38
34
26
L
750
915
32
38
40
43
40
37
33
25
DUCTED DISCHARGE
H
830
1235
45
41
49
53
53
48
46
41
M
790
1060
43
40
47
51
51
46
44
40
L
750
915
42
38
45
49
49
45
43
38