
Ceiling Concealed Fan Coil Unit
Sound Pressure
Microphone position: 1.4m below the centre of the unit. (GB Standard - GB/D17758)
Measuring Location:
Tested with 2m length duct at the air discharge outlet and air return inlet.
Ext. Static Overall Noise
(mmAq) 125Hz 250Hz 500Hz 1kHz 2kHz 4kHz 8kHz (dBA) Criteria
M5CCWS 010CR 5 High 33 30 30 29 22 16 10 33 27
4 Medium312828262013 8 3024
3 Low 28 25 24 22 16 10 7 26 20
M5CCWS 015CR 5 High 39 36 34 32 27 18 11 37 31
4 Medium353432292314 9 3427
3 Low 32 29 28 25 17 11 8 29 23
M5CCWS 020CR 6.5 High 42 39 36 34 28 22 17 38 33
6 Medium413734312620153630
3.5 Low 40 36 32 29 23 18 13 34 27
M5CCWS 025CR 5.5 High 42 41 37 34 31 29 23 40 33
4 Medium414036332928223932
3 Low 36 35 33 31 26 27 21 36 30
M5CCWS 030CR 21 Super High 54 50 46 45 40 34 30 49 44
17 High 50 45 43 42 37 31 26 46 41
13 Medium 45 40 40 38 32 26 20 42 37
9 Low 42 36 37 33 28 22 15 38 32
M5CCWS 040CR 21 Super High 56 49 49 46 41 37 32 51 45
18 High 54 47 47 45 39 35 29 49 44
13 Medium 49 42 43 41 35 31 24 45 40
9.5 Low 45 39 41 37 30 26 18 41 36
M5CCWS 050CR 18 Super High 56 50 50 49 44 38 33 53 48
16 High 54 49 49 48 43 37 32 52 47
14 Medium 53 47 46 47 40 35 29 50 46
11 Low 514544443632264743
M5CCWS 060CR 18 Super High 57 50 51 51 46 39 35 55 50
16 High 55 49 49 50 44 37 33 53 49
14 Medium 53 46 47 47 39 34 28 50 46
10 Low 514344433530244742
Model Speed
1/1 Octave A-weighted Sound Pressure (dBA), ref 20µPa
Test Unit
2m length test duct 2m length test duct
ir
1.4m
Microphone
37
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