HIGH STATIC | 55
Ducted High Static
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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
0.20
970 1720 31 39 41 44 44 36 31 25
M 920 1558 30 39 40 43 43 35 31 24
L 880 1424 30 37 38 41 40 32 27 19
CASING RADIATED
H 970 1720 26 36 38 39 36 32 21 20
M 920 1558 26 35 38 38 35 31 26 17
L 880 1424 28 33 34 36 33 28 23 15
DUCTED DISCHARGE
H 970 1720 39 38 43 48 47 42 39 35
M 920 1558 38 37 43 47 47 41 39 34
L 880 1424 39 34 41 44 43 38 35 29
ARNU483M3A4
RETURN OPENING
H
0.20
890 1457 30 37 38 41 40 33 28 20
M 820 1189 28 35 36 39 38 30 25 17
L 760 952 25 32 34 37 36 28 23 15
CASING RADIATED
H 890 1457 28 33 34 36 33 29 23 22
M 820 1189 26 31 32 34 31 27 22 13
L 760 952 24 29 30 32 29 25 20 11
DUCTED DISCHARGE
H 890 1457 40 35 42 45 44 38 35 30
M 820 1189 37 32 39 42 41 35 32 27
L 760 952 34 29 36 39 38 33 30 24
ARNU423M3A4
RETURN OPENING
H
0.20
850 1327 29 36 37 40 39 32 27 19
M 800 1097 27 34 35 38 37 30 25 17
L 760 952 26 33 34 37 36 28 23 15
CASING RADIATED
H 850 1327 27 32 33 35 32 28 22 21
M 800 1097 26 31 32 34 31 26 21 13
L 760 952 25 30 31 33 29 25 20 11
DUCTED DISCHARGE
H 850 1327 38 34 40 43 42 37 34 28
M 800 1097 36 31 38 41 40 35 32 26
L 760 952 34 30 36 40 38 33 30 24
ARNU363M3A4
RETURN OPENING
H
0.20
850 1327 29 36 37 41 40 32 27 19
M 800 1097 28 35 36 39 38 30 25 17
L 760 952 26 33 34 37 36 29 24 16
CASING RADIATED
H 850 1327 28 32 34 35 32 28 22 21
M 800 1097 26 31 32 34 31 27 22 13
L 760 952 25 30 31 33 30 26 21 12
DUCTED DISCHARGE
H 850 1327 39 34 41 44 43 37 34 29
M 800 1097 37 32 38 42 40 35 32 26
L 760 952 35 30 37 40 39 33 30 25
ARNU283M3A4
RETURN OPENING
H
0.20
830 1235 29 36 37 40 39 32 27 19
M 790 1060 28 35 36 39 38 30 25 17
L 750 915 26 33 34 37 36 29 24 16
CASING RADIATED
H 830 1235 27 32 34 35 32 28 22 21
M 790 1060 26 31 32 34 31 27 22 13
L 750 915 25 30 31 33 30 26 21 12
DUCTED DISCHARGE
H 830 1235 38 34 40 43 42 37 34 28
M 790 1060 37 32 39 42 41 35 32 27
L 750 915 35 30 37 40 39 33 31 25