Sound Level Characteristics - Electra DNG 100 Service Manual

7.

SOUND LEVEL CHARACTERISTICS

7.1 Indoor Units Test Scheme
7.2 Sound Pressure Level Spectrum (Measured as Figure 1)
DNG 100
APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
BAND CENTER FREQUENCIES, Hz
FAN SPEED LINE
HI
ME
LO
SM OU12HP 2-E.2 GB
SOUND LEVEL CHARACTERISTICS
Figure 1
NC-70
NC-60
NC-50
NC-40
NC-30
APPROXIMATE
THRESHOLD OF
HEARING FOR
NC-20
CONTINUOUS
NOISE
CONTENTS
DNG 125
BAND CENTER FREQUENCIES, Hz
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
7-1