Panasonic Inverter R32 Series Technical Data & Service Manual page 62

1-6. Noise Criterion Curves
(A) Indoor Units:
Ceiling Type
: S-140PT2E5B
MODEL
SOUND LEVEL : High
Low
CONDITION
: 1 m from front of outlet at height of 1 m
SOURCE : 220-230-240V, 1 phase, 50Hz
90
80
70
60
50
40
30
Approximate
20
minimum
audible limit for
continuous noise
10
Overall 63 125 250 500 1000 2000 4000 8000
Frequency at center of sound pressure band (Hz)
47 dB(A)
37 dB(A)
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
1-6-4
1
High
Low