McQuay MWH020B User Manual

Noise Level
SOUND PRESSURE LEVEL (MEASURED IN ANECHOIC ROOM)
Overall Noise
125 Hz 250 Hz 500 Hz 1 kHz 2 kHz 4 kHz 8 kHz A (dBA) Criteria
S.High 48 41 40 37 31 24 14 42 36
High 44 40 40 36 29 23 15 41 35
Medium 46 39 38 35 27 21 13 40 34
Low 44 37 37 33 26 20 13 38 32
S.High 42 40 34 31 24 20 17 37 30
High 41 38 32 30 21 21 18 35 29
Medium 41 36 30 30 21 21 17 34 29
Low 39 34 29 30 18 22 16 33 29
S.High 46 42 39 36 29 24 24 41 35
High 46 42 38 35 29 24 24 40 34
Medium 45 41 38 35 28 24 24 40 34
Low 46 39 36 33 27 23 23 39 32
S.High 52 48 43 39 34 28 23 45 38
High 52 46 42 39 33 27 23 44 38
Medium 51 45 41 37 32 27 22 43 36
Low 51 42 39 36 31 25 22 41 35
S.High 51 51 45 41 35 28 22 47 40
High 54 50 45 39 34 27 20 47 40
Medium 54 49 44 38 32 25 18 46 39
Low 54 48 43 37 29 22 16 44 38
High 35 41 39 40 38 28 19 51 39
Medium 34 37 39 40 35 27 17 49 39
Low 32 37 39 39 35 24 16 48 38
High 44 39 42 40 40 37 30 54 41
Medium 42 38 40 39 39 36 28 52 40
Low 40 37 40 38 37 34 25 51 38
High 42 39 44 42 40 37 30 53 41
Medium 40 38 44 40 39 35 29 52 40
Low 40 36 42 39 38 33 27 51 39
High 42 42 44 43 37 32 22 56 42
Medium 42 41 43 42 37 31 21 55 41
Low 41 40 43 42 35 30 20 54 41
High 35 38 44 44 38 28 19 53 43
Medium 35 38 44 43 37 28 17 53 42
Low 34 36 42 42 33 22 14 51 41
Microphone position:
1.5m below the centre of the unit. (Tested with 2m length duct at the air discharge outlet and 1m duct
at the air return inlet)
Model Speed
1/1 Octave Sound Pressure Level (dB, ref 20
μ
Pa)
MWH011B/BR
MWH012B/BR
MWH025B/BR
MWH015B/BR
MWH020B/BR
MWH070B/BR
MWH030B/BR
MWH040B/BR
MWH050B/BR
MWH060B/BR
9

McQuay MWH020B Specifications

General

Brand	McQuay
Model	MWH020B
Category	Heat Pump
Language	English