Panasonic Shows U-26PE1U6 Technical Data & Service Manual page 59

1-8 Noise Criterion Curves
Ceiling Type
MODEL : S-26PT1U6
SOUND LEVEL : HIGH 40 dB(A), NC 34
LOW
CONDITION : Distance 3.3 ft., Under the unit 3.3 ft.
SOURCE : 208 - 230 V, 1 Phase, 60 Hz
60
50
40
30
APPROXIMATE
THRESHOLD OF
20
HEARING FOR
CONTINUOUS
NOISE
10
63 125 250
BAND CENTER FREQUENCIES, Hz
MODEL : S-42PT1U6
SOUND LEVEL : HIGH 47 dB(A), NC 40
LOW
CONDITION : Distance 3.3 ft., Under the unit 3.3 ft.
SOURCE : 208 - 230 V, 1 Phase, 60 Hz
60
50
40
30
APPROXIMATE
THRESHOLD OF
20
HEARING FOR
CONTINUOUS
NOISE
10
63 125 250
BAND CENTER FREQUENCIES, Hz
36 dB(A), NC 26
NC-50
NC-40
NC-30
NC-20
500 1000 2000 4000 8000
1221_X_I
38 dB(A), NC 32
NC-50
NC-40
NC-30
NC-20
500 1000 2000 4000 8000
2114_X_I
MODEL : S-36PT1U6
SOUND LEVEL : HIGH 46 dB(A), NC 39
LOW
CONDITION : Distance 3.3 ft., Under the unit 3.3 ft.
SOURCE : 208 - 230 V, 1 Phase, 60 Hz
60
50
40
30
APPROXIMATE
THRESHOLD OF
20
HEARING FOR
CONTINUOUS
NOISE
10
63 125 250
BAND CENTER FREQUENCIES, Hz
1-53
1. Specifications
37 dB(A), NC 31
NC-50
NC-40
NC-30
NC-20
500 1000 2000 4000 8000
2113_X_I
1