Toshiba Carrier MMC-AP0181H2UL, Engineering Data Book

Page: 202 / 213

6
Indoor unit
201
MMD-AP0124SPH2UL
[Measuring location] Back air intake [External static pressure 20 Pa]
Fan tap H M L
Sound pressure
level (dB(A))
] a P 0 5 e r u s s e r p c i t a t s l a n r e t x E [ ] a P 5 3 e r u s s e r p c i t a t s l a n r e t x E [
L M H p a t n a F L M H p a t n a F
e r u s s e r p d n u o S e r u s s e r p d n u o S
) ) A ( B d ( l e v e l ) ) A ( B d ( l e v e l
31.5 28.5
30 28 2 3 5 . 8 2
32.5
33.5 32.5
10
20
30
40
50
60
70
63 125 250 500 1000 2000 4000 8000
Octave band center frequency (Hz)
Octave band sound pressure level (dB)
L
H
M
NC-50
NC-40
NC-30
NC-20
Approximate threshold of
hearing for continuous noise
10
20
30
40
50
60
70
63 125 250 500 1000 2000 4000 8000
Octave band center frequency (Hz)
Octave band sound pressure level (dB)
NC-50
NC-40
NC-30
NC-20
Approximate threshold of
hearing for continuous noise
L
H
M
10
20
30
40
50
60
70
63 125 250 500 1000 2000 4000 8000
Octave band center frequency (Hz)
Octave band sound pressure level (dB)
Approximate threshold of
hearing for continuous noise
L
H
M
NC-50
NC-40
NC-30
NC-20
6.56 ft
(2 m) 3.28 ft
(1 m)
Microphone
t c u D t c u D
Center
4.92 ft
(1.5 m)
Air discharge Air intake