Sanyo Big PACi 18 Series Technical Data & Service Manual page 105

1
1-8. Noise Criterion Curves
Concealed-Duct High Static Pressure Type
MODEL : SPW-D705H
SOUND LEVEL :
CONDITION : WEAK
CONDITION : Under the unit1.5 m
90
80
70
60
50
40
30
Approximate
20
minimum audible
limit for
continuous noise
10
63
Overall
Frequency at center of sound pressure band (Hz)
STRONG 48 dB(A),
45 dB(A),
125 250 500 1000 2000 4000
MODEL
SOUND LEVEL :
CONDITION
CONDITION
90
80
70
NC-70
60
NC-60
50
NC-50
40
NC-40
30
NC-30
Approximate
20
minimum audible
NC-20
limit for
continuous noise
10
8000
Overall
Frequency at center of sound pressure band (Hz)
1-100
: SPW-D905H
STRONG 50 dB(A),
: WEAK 48 dB(A),
: Under the unit1.5 m
63 125 250 500 1000 2000
Strong
Weak
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
4000 8000