Airwell YBZ214, Руководство по обслуживанию

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SOUND LEVEL CHARACTERISTICS
7-2 Service Manual – YBZ DCI 1-A.1 GB
HZD012,HYD012 Cooling HZD012,HYD012 Heating
Noise spectrum & NC Curves
NC15
NC20
NC25
NC30
NC35
NC40
NC45
NC50
NC55
NC60
NC65
0
10
20
30
40
50
60
70
80
90
63 125 250 500 1000 2000 4000 8000
Octave Band Center Frequencies [Hz]
O
c
ta
v
e
Ba
nd S
ound
P
ressu
re L
eve
l [d
B
r
e 20 mPa
]
Noise spectrum & NC Curves
NC15
NC20
NC25
NC30
NC35
NC40
NC45
NC50
NC55
NC60
NC65
0
10
20
30
40
50
60
70
80
90
63 125 250 500 1000 2000 4000 8000
Octave Band Center Frequencies [Hz]
O
c
ta
v
e
Ba
nd S
ound
P
ressu
re L
evel
[d
B
r
e 20 mPa
]
FAN SPEED LINE
HI
ME
LO
HZD018,HYD018 Cooling HZD018,HYD018 Heating
Noise spectrum & NC Curves
NC15
NC20
NC25
NC30
NC35
NC40
NC45
NC50
NC55
NC60
NC65
0
10
20
30
40
50
60
70
80
90
63 125 250 500 1000 2000 4000 8000
Octave Band Center Frequencies [Hz]
Oc
tave B
an
d
S
ound
P
re
s
s
u
re
L
evel
[d
B
r
e
20 m
P
a]
Noise spectrum & NC Curves
NC15
NC20
NC25
NC30
NC35
NC40
NC45
NC50
NC55
NC60
NC65
0
10
20
30
40
50
60
70
80
90
63 125 250 500 1000 2000 4000 8000
Octave Band Center Frequencies [Hz]
O
c
ta
v
e
B
a
nd S
o
und P
re
s
s
ur
e
Le
v
e
l
[dB r
e
2
0
m
P
a
]
FAN SPEED LINE
HI
ME
LO