Sanyo Big PACi 18 Series Technical Data & Service Manual page 100

1-8. Noise Criterion Curves
(A) Indoor Units
4-Way Air Discharge Semi-Concealed Type
MODEL
: SPW-XM185H
SOUND LEVEL :
STRONG
WEAK
1.5 m directly below unit
CONDITION :
60
50
40
30
Approximate
minimum audible
20
limit for
continuous noise
10
63 125 250
Overall
Frequency at center of sound pressure band (Hz)
41 dB(A)
33 dB(A)
NC -50
NC -40
NC -30
NC -20
500 1000 2000 4000 8000
1-95
Both 50Hz / 60Hz
Strong
Weak
1