Noise Criterion Curves - Sanyo ECO-i AHX0752 Technical Data Manual

2. 4-Way Air Discharge Semi-concealed Type (X Type)

2-4. Noise Criterion Curves

MODEL : XHX1252, XHX1852
SOUND LEVEL : STRONG
HIGH
LOW
CONDITION : 4.9 ft directly below unit
60
50
40
30
Approximate
20
minimum audible
limit for
continuous noise
10
63 125 250
Overall
Frequency at center of sound pressure band (Hz)
MODEL : XHX3652
SOUND LEVEL : STRONG
HIGH
LOW
CONDITION : 4.9 ft directly below unit
60
50
40
30
Approximate
20
minimum audible
limit for
continuous noise
10
63 125 250
Overall
Frequency at center of sound pressure band (Hz)
MODEL : XMHX1852
SOUND LEVEL : STRONG
WEAK
CONDITION : 1.5 m directly below unit
60
50
40
30
Approximate
20
minimum audible
limit for
continuous noise
10
63 125 250
Overall
Frequency at center of sound pressure band (Hz)
31 dB(A)
29 dB(A)
27 dB(A)
NC-50
NC-40
NC-30
NC-20
500 1000 2000 4000 8000
39 dB(A)
36 dB(A)
33 dB(A)
o
NC-50
NC-40
NC-30
NC-20
500 1000 2000 4000 8000
41 dB(A)
33 dB(A)
NC-50
NC-40
NC-30
NC-20
500 1000 2000 4000 8000
W-3WAY ECO-i SYSTEM Unit Specifi cations
MODEL : XHX2452
SOUND LEVEL : STRONG
HIGH
LOW
CONDITION :
4.9 ft directly below unit
60
50
40
30
Approximate
20 minimum audible
limit for
continuous noise
10
63 125 250
Overall
Frequency at center of sound pressure band (Hz)
MODEL : XMHX1252
SOUND LEVEL : STRONG
WEAK
CONDITION : 1.5 m directly below unit
60
50
40
30
Approximate
20
minimum audible
limit for
continuous noise
10
63 125 250
Overall
Frequency at center of sound pressure band (Hz)
4-27
60Hz
Strong
Weak
34 dB(A)
31 dB(A)
28 dB(A)
o
NC-50
NC-40
NC-30
NC-20
500 1000 2000 4000 8000
32 dB(A)
26 dB(A)
NC-50
NC-40
NC-30
NC-20
500 1000 2000 4000 8000
1
2
3
4
5
6
7
8