Outdoor Units - Electra DELTA 18ST Service Manual

SOUND LEVEL CHARACTERISTICS
6.3

Outdoor units

6.4 Sound Pressure Level Spectrum
GC 18 Cooling
APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
BAND CENTER FREQUENCIES, Hz
GC 22 Cooling
APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
BAND CENTER FREQUENCIES, Hz
6-2
Unit
1m
Mic.
Ground
Figure 2
(Measured as Figure 2)
GC 18 Heating
NC-70
NC-60
NC-50
NC-40
NC- 0
APPROXIMATE
THRESHOLD OF
HEARING FOR
NC-20
CONTINUOUS
NOISE
GC 22 Heating
NC-70
NC-60
NC-50
NC-40
NC- 0
APPROXIMATE
THRESHOLD OF
HEARING FOR
NC-20
CONTINUOUS
NOISE
CONTENTS
BAND CENTER FREQUENCIES, Hz
BAND CENTER FREQUENCIES, Hz
SM DELTA 1-E.0 GB
NC-70
NC-60
NC-50
NC-40
NC- 0
NC-20
NC-70
NC-60
NC-50
NC-40
NC- 0
NC-20