Airedale Dry coolers DR10 - Manual (Page 17)

DR10-95
DRY COOLERS
Dry coolers
17
Technical Manual :6877401 V1.1.0 02_2013
Sound Data
METHOD OF SOUND
MEASUREMENT All sound data quoted has been measured in the third-octave band limited values, using
a Real Time Analyser calibrated sound intensity meter in accordance with
BS EN ISO9614 Part 1: 1995.
All Sound Power Levels quoted are calculated from measured sound intensity according
BS EN ISO9614 Part 1: 1995.
SEMI HEMISPHERICAL Sound Pressure Levels are calculated from sound power using the semi-hemispherical
method where the noise source is in junction with 2 boundaries i.e. the floor and 1 wall.
SOUND DATA - STANDARD FAN
IMPORTANT The sound data quoted is based on the unit having the STANDARD FAN running at
FULL SPEED under normal operating conditions.
For sound data of optional fan selections, please contact Airedale.
Horizontal
Sound Overall
dB(A)
Frequency (Hz) dB
Measurement 63 125 250 500 1000 2000 4000 8000
DR10
Power 74 72 83 76 68 68 65 60 50
Pressure @10m 46 44 55 48 40 40 37 32 22
DR12
Power 74 72 83 76 68 68 65 60 50
Pressure @10m 46 44 55 48 40 40 37 32 22
DR15
Power 78 82 87 74 74 73 70 63 62
Pressure @10m 50 54 59 46 46 45 42 35 34
DR20
Power 82 83 80 82 79 78 74 67 59
Pressure @10m 54 55 52 54 51 50 46 39 31
DR25
Power 78 82 87 74 74 73 70 63 62
Pressure @10m 50 54 59 46 46 45 42 35 34
DR30
Power 82 83 80 82 79 78 74 67 59
Pressure @10m 54 55 52 54 51 50 46 39 31
DR35
Power 81 85 90 77 77 76 73 66 65
Pressure @10m 53 57 62 49 49 48 45 38 37
DR45
Power 85 86 83 85 82 81 77 70 62
Pressure @10m 57 58 55 57 54 53 49 42 34
DR40
Power 81 85 90 77 77 76 73 66 65
Pressure @10m 53 57 62 49 49 48 45 38 37
DR50
Power 85 86 83 85 82 81 77 70 62
Pressure @10m 57 58 55 57 54 53 49 42 34
DR55
Power 83 80 90 80 77 79 75 68 67
Pressure @10m 55 52 62 52 49 51 47 40 39
DR70
Power 87 88 85 87 84 83 79 72 64
Pressure @10m 59 60 57 59 56 55 51 44 36
DR75
Power 82 80 90 80 77 79 75 68 67
Pressure @10m 55 52 62 52 49 51 47 40 39
DR95
Power 87 88 85 87 84 83 79 72 64
Pressure @10m 59 60 57 59 56 55 51 44 36