34
9.5 - Sound power levels
9.5.1 - Standard insulation
42EM 1.0 - with two discharge spigots
Octave band frequency (Hz)
V Type 125 250 500 1 K 2 K 4K 8K dBA
V1 SUP 57.3 55.1 46.2 43.1 37.1 31.3 26.5 50.3
REP 60 57.8 52 46.8 43.5 38.7 33.4 54.3
RAD 57.6 50.3 45.2 37.6 32.2 24.7 26.1 47.3
V2 SUP 54.8 51.4 42.7 39.4 33.4 26.1 23.3 46.8
REP 57.8 54.1 49 43.3 39.9 34 28.6 51
RAD 54.1 46.8 41.7 34.2 28.4 19.9 22.4 43.8
V3 SUP 51.5 48.8 40.1 36.5 30.4 22.2 22.2 44
REP 55 51.5 46.4 40.8 36.8 29.8 23.4 48.3
RAD 53.2 44.1 37 31 25.6 16.8 20.9 41.1
V4 SUP 48.4 45.2 36.9 33 26.4 18 21.8 40.6
REP 51.9 47.7 43.2 37.1 32.5 23.9 20.6 44.7
RAD 49.9 40.7 33.8 27.4 21.7 14.2 20.3 37.8
V5 SUP 45.4 42.5 34.1 29.7 22.4 15.8 21.6 37.7
REP 48.9 44.6 40.6 33.7 28 19.2 19.9 41.7
RAD 46.2 37.8 30.9 24.2 17.7 13.2 20.1 34.6
V6 SUP 43.1 40.1 32.1 26.9 19 15 21.6 35.4
REP 46.7 42.6 38.6 30.9 24.5 16.9 19.8 39.5
RAD 43.8 35.9 29.1 21.5 15 12.9 20.1 32.6
42EM 2.0 and 3.0 - with 2 discharge spigots
Octave band frequency (Hz)
V Type 125 250 500 1 K 2 K 4K 8K dBA
V1 SUP 57.4 54.3 49.1 40.3 31.8 28.1 22.6 50.3
RET 62.7 60.4 55.9 48.4 44.8 38.6 31.2 57
RAD 54.8 48.5 41.4 34.3 29.3 19.5 21.2 44.4
V2 SUP 54.3 51.1 45.7 36.6 27.7 22.8 19.9 46.8
RET 58.7 56.5 52.8 44.6 40.5 33.2 25.2 53.4
RAD 51.1 45 38.2 30 25.3 14.9 18.6 40.9
V3 SUP 49.5 45.4 40.3 30.3 20.2 14.4 19.0 41.3
RET 53.7 50.9 47.3 38.1 32.9 24.5 19.4 47.6
RAD 47.6 39.3 33.1 23.8 18.2 11.3 18.2 35.9
V4 SUP 44 39.6 34.2 22.9 12 9.9 18.9 35.3
RET 50 46.3 42.7 32.5 26.2 18 18.6 42.9
RAD 44.5 33.7 27.5 16.6 11.1 10.3 18.1 31.5
V5 SUP 40.3 37.3 27.7 17.5 7 9.4 18.9 31.5
RET 43.5 42.2 37.6 27 19.3 14.6 18.6 38
RAD 42 30.9 23.4 12.4 8.2 10.7 18.8 28.8
V6 SUP 39.8 34.4 28.1 15.4 6.1 8 18.5 30.1
RET 43.3 39.2 34.4 22.5 15.8 13.9 17 35.2
RAD 39.4 28.8 21.1 10.6 7.8 10.3 18.1 26.8
42EM 2.1 and 3.1 - with 2 discharge spigots
Octave band frequency (Hz)
V Type 125 250 500 1 K 2 K 4K 8K dBA
V1 SUP 56 51.0 44 38 30 23 21 46.7
RET 58.5 53 48.5 42 36.5 30 26 50.1
RAD 51 43 37 29 25 15 20 39.8
V2 SUP 53.4 47.4 41.1 33.3 25 19 20 43.4
RET 55 50 46 39 32 27 24 47.1
RAD 48 40 34 25.5 20 13 19 36.7
V3 SUP 49.5 44.2 37.9 30 19.7 15 19.8 40
RET 51.9 46.6 42.5 34.8 27.7 23.1 22.4 43.6
RAD 45 36.0 30.6 21.7 16.2 11.3 18.8 33.3
V4 SUP 45.5 41 34.3 25 15 14 19.8 36.4
RET 48.3 43.5 39 30 26 21.5 22 40.2
RAD 41.8 33.6 27.1 17 13.2 11 18.6 30.3
V5 SUP 42.5 38 31.3 21.9 11.8 11.7 19 33.4
RET 45.3 40.5 36 26.8 22.9 19.1 20 37.2
RAD 38.8 30.6 24.1 14 10.2 10 18.3 27.6
V6 SUP
RET Speed not available for 230 V
RAD
Legend:
V - Fan speed
SUP - Supply (dB re = 10
-12
W)
RET - Return (dB re = 10
-12
W)
RAD - Radiated (dB re = 10
-12
W)
NOTE: The measurements are based on ISO standards and
are without supply and return octopus plenums.
The room sound level calculations must take account of the
sound absorption of the duct, the plenum, the room and
ceiling.
For a selected speed the sound level can vary within a
tolerance of ± 2 dB(A), depending on the available static
pressure.
42EM 2.2 and 3.2 - with three discharge spigots
Octave band frequency (Hz)
V Type 125 250 500 1 K 2 K 4K 8K dBA
V1 SUP 62.4 57.6 50.2 44.8 36.3 31.9 26 53.2
RET 64.4 59.9 54.2 48.8 43.8 38.3 33.5 56.5
RAD 55.2 49.3 42.6 36.3 32.2 23.1 23.5 45.5
V2 SUP 61.7 55.8 48.6 42.9 34.4 29.5 24.2 51.7
RET 62.8 58 52.7 47 41.8 35.8 30.8 54.8
RAD 53.9 47.6 41.2 34.5 30.3 20.4 21.8 43.9
V3 SUP 58.6 52.7 46 39.8 30.9 25.1 21.4 48.7
RET 60 55.3 50.2 44.2 38.5 32 27.2 52
RAD 52.2 44.5 38.7 31.5 27.1 16.7 20 41.4
V4 SUP 54.9 48.9 42.6 35.8 26.2 19.7 20.3 45
RET 56.8 51.5 47.1 40.4 34 27.6 24.5 48.5
RAD 49.2 41 35.4 27.5 22.4 13.1 19.1 38
V5 SUP 49.5 44.2 37.9 30 19.7 15 19.8 40
RET 51.9 46.6 42.5 34.8 27.7 23.1 22.4 43.6
RAD 45 36 30.6 21.7 16.2 11.3 18.8 33.3
V6 SUP 43.5 39 32.3 22.9 12.8 12.7 19.5 34.4
RET 46.3 41.5 37 27.8 23.9 20.1 20.9 38.2
RAD 39.8 31.6 25.1 14.9 11.2 10.8 18.6 28.5
42EM 2.3 and 3.3 - with four discharge spigots
Octave band frequency (Hz)
V Type 125 250 500 1 K 2 K 4K 8K dBA
V1 SUP 66.2 63 54.9 50.4 41.6 38.2 33.1 58.2
RET 67 63.8 57.4 52.6 48.2 43.4 39.2 60.1
RAD 57.9 53.6 45.5 40.3 35.3 28.1 29.2 49.1
V2 SUP 66 61.8 54.1 49.5 40.8 37.1 31.8 57.3
RET 66.6 63 56.6 51.8 47.3 42.3 37.9 59.3
RAD 57.1 52.6 44.6 39.4 34.4 26.9 27.8 48.1
V3 SUP 64.5 60.3 52.8 48 39.3 35.2 29.6 55.9
RET 65.4 61.3 55.4 50.5 45.9 40.5 35.8 57.9
RAD 55.9 50.9 43.4 38 33 24.9 25.8 46.7
V4 SUP 62.6 57.6 50.6 45.4 36.6 31.8 26.2 53.5
RET 64.1 58.9 53.6 48.4 43.6 37.6 32.9 55.9
RAD 54.2 48.4 41.3 35.5 30.4 21.4 22.9 44.4
V5 SUP 58.3 52.8 46.2 40.3 31.3 25 21.4 48.8
RET 59.4 53.9 49.3 43.4 37.9 31 26.8 51.1
RAD 49.9 43.6 37.3 30.7 25.9 16 19.6 4
V6 SUP 51.7 47.1 40.6 33.6 23.3 16.6 19.7 42.8
RET 54 47.9 43.8 36.8 30 23.9 23 45.1
RAD 44.3 38.1 31.8 24.1 18.1 11.5 18.6 34.3
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