Ceiling Mounted Type - Sanyo C4272R Service Manual

1-8 Noise Criterion Curves

Ceiling Mounted Type

MODEL
SOUND LEVEL : HIGH 40 dB(A), NC 34
CONDITION
SOURCE
60
50
40
30
APPROXIMATE
THRESHOLD OF
20
HEARING FOR
1
CONTINUOUS
NOISE
10
63 125
BAND CENTER FREQUENCIES, Hz
2
MODEL
SOUND LEVEL : HIGH 47 dB(A), NC 40
CONDITION
SOURCE
60
3
50
40
4
30
APPROXIMATE
THRESHOLD OF
20
5
HEARING FOR
CONTINUOUS
NOISE
10
63 125
BAND CENTER FREQUENCIES, Hz
6
: TH2672R, THH2672R
LOW 36 dB(A), NC 26
: Distance 3.3 ft., Under the unit 3.3 ft.
: 208 - 230 V, 1 Phase, 60 Hz
250 500 1000 2000 4000 8000
: TH4272R
LOW 38 dB(A), NC 32
: Distance 3.3 ft., Under the unit 3.3 ft.
: 208 - 230 V, 1 Phase, 60 Hz
250 500 1000 2000 4000 8000
MODEL
SOUND LEVEL : HIGH 46 dB(A), NC 39
CONDITION
SOURCE
60
50
NC-50
40
NC-40
30
NC-30
APPROXIMATE
THRESHOLD OF
20
NC-20
HEARING FOR
CONTINUOUS
NOISE
10
63
1221_X_I
NC-50
NC-40
NC-30
NC-20
2114_X_I
I-78
1. Specifications
: TH3672R, THH3672R
LOW 37 dB(A), NC 31
: Distance 3.3 ft., Under the unit 3.3 ft.
: 208 - 230 V, 1 Phase, 60 Hz
125 250 500 1000 2000 4000 8000
BAND CENTER FREQUENCIES, Hz
NC-50
NC-40
NC-30
NC-20
2113_X_I
SM831148