Outdoor Units - Electra DNG 18 Service Manual

7.3

Outdoor units

7.4 Sound Pressure Level Spectrum (Measured as Figure 5)
GC 18 Cooling
APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
BAND CENTER FREQUENCIES, Hz
OU7-24 Cooling
APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
BAND CENTER FREQUENCIES, Hz
Service Manual - DNG Series
Microphone Distance from Unit
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
Revision Y05-01
CONTENT
SOUND LEVEL CHARACTERISTICS
GC 18 Heating
APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
BAND CENTER FREQUENCIES, Hz
OU7-24 Heating
APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
BAND CENTER FREQUENCIES, Hz
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
7-3