Panasonic U-26PE1U6 Technical Data & Service Manual page 85

1-8. Noise Criterion Curves
Low Silhouette Ducted (Type F1)
MODEL : S-26PF1U6
SOUND LEVEL : HIGH 34 dB(A), NC 22 / LOW 27 dB(A), NC 18
: 4.9 ft. directly below unit
CONDITION
SOURCE : 208 - 230 V, 1 Phase, 60 Hz
60
50
40
30
20
APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
10
63 125 250 500 1000 2000 4000 8000
BAND CENTER FREQUENCIES, Hz
MODEL
SOUND LEVEL : HIGH 38 dB(A), NC 30 / LOW 31 dB(A), NC 21
CONDITION
SOURCE
60
50
NC-50
40
NC-40
30
NC-30
20
NC-20
APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
10
1761_U_I
1-77
: S-36PF1U6
: 4.9 ft. directly below unit
: 208 - 230 V, 1 Phase, 60 Hz
63 125 250 500 1000 2000 4000 8000
BAND CENTER FREQUENCIES, Hz
1. Specifications
NC-50
NC-40
NC-30
NC-20
1
1762_U_I