6-1
SOUND LEVEL CHARACTERISTICS
SM HAFRPM 1-A.3 GB
6.
SOUND LEVEL CHARACTERISTICS
6.1
Sound Pressure Level
Figure 1. Wall Mounted
Figure 2. Floor Mounted
Figure 3. Ducted
Figure 4. Cassette
6.2
Soud Pressure Level Spectrum
(Measured as Figure 1)
HAF 7
HAF 9
Hz, BAND CENTER FREQUENCIES
APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
-70NC
-60NC
-50NC
-40NC
-30NC
-20NC
MICRO BAR0.002 dB re , OCTAVE BAND SOUND PRESSURE LEVEL
FAN SPEED
LINE
HI
LO
Hz, BAND CENTER FREQUENCIES
APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
-70NC
-60NC
-50NC
-40NC
-30NC
-20NC
MICRO BAR0.002 dB re , OCTAVE BAND SOUND PRESSURE LEVEL
CONTENTS
