Airwell EDS25 Service Manual page 31

Model: GCN12RC(R22)
Type: Pilot
Outdoor Octave Band Sound Pressure Level, dB
Outdooor
RPM 833
Octave
Cooling Heating
Band
63 57 56
125 57 56
250 55 55
500 55 56
1000 48 50
2000 43 44
4000 39 40
8000 32 35
Outdoor Sound Pressure
Outdoor Sound Power
(cooling)
Outdoor Sound Pressure
Outdoor Sound Power
(heating),
Noise spectrum & NC Curves
90
80
70
60
50
40
30
20
10
0
63 125 250
Octave Band Center Frequencies [Hz]
Outdoor Unit Noise Data Report - Fix RPM
Background Noise,dB(A):
54.9
, dB(A)
(cooling)
, dB(A) 64.0
, dB(A) 56.2
(heating)
dB(A) 64.5
Cooling
NC65
NC60
NC55
NC50
NC45
NC40
NC35
NC30
NC25
NC20
NC15
500 1000 2000 4000 8000
Outdoor
25.1
Drawing of microphon position
Noise spectrum & NC Curves
90
80
70
60
50
40
30
20
10
0
63 125
Octave Band Center Frequencies [Hz]
SEND TO
Outdoor
Unit
1m
Mic.
Ground
Heating
250 500 1000 2000 4000 8000
NC65
NC60
NC55
NC50
NC45
NC40
NC35
NC30
NC25
NC20
NC15