Specifications

21
Sound DaSound Da
Sound DaSound Da
Sound Da
tata
tata
ta
Microphone position: 1 m away from the service panel and 1 m height from the floor level (free return and the discharge air was ducted
to adjacent room). Tested with 2m length duct at the air discharge outlet and air return inlet.
*Microphone position: 1.4 m below the unit, discharge air is ducted to adjacent room, free return.
MDB-BR SERIES
MDB-CR SERIES
Microphone position: 1.4 m below the unit, discharge air is ducted to adjacent room, free return. Tested with 2m length duct at the air
discharge outlet and air return inlet.
SOUND PRESSURE LEVEL
47 68 6366 64 61 56MDB500BR High 69 66
54 45 66 62
44 66 61
MDB400BRHigh6764636359
62 62 59 54MDB350BR High 67 60
54 44 66 60
43 63 58
MDB300BRHigh6660626159
59 59 57 52MDB250BR High 62 57
49 41 61 55
39 59 54
MDB200BRHigh6056585654
53 47
*MDB150BR High 58 56 57 54 52 47
55 49
Low 53 52 51 48 46 41 35
50 48 43 36Medium 54 54 53
45 37 57 51
32 52 46
*MDB100BR
High 56 55 55 52 50
34 54 48
Low 52 50 49 47 45 40
36 56 50
Medium 53 52 52 49 47 42
54 51 49 44
*MDB075BR
High 55 54
Noise Criteria
125Hz 250Hz 500Hz 1kHz 2kHz 4kHz 8kHz
Model Speed
1/1 Octave Sound Pressure Level (dB, ref 20μPa)
Overall A
(dBA)
39 59 5457 54 52 47MDB125CR High 58 56
Noise Criteria
125Hz 250Hz 500Hz 1kHz 2kHz 4kHz 8kHz
Model Speed
1/1 Octave Sound Pressure Level (dB, ref 20μPa)
Overall A
(dBA)