5
NOISE CRITERIA CURVES
3
90
80
70
60
50
40
30
20
10
63
125
250
500
1000
2000
4000
8000
NC-60
NC-50
NC-40
NC-30
NC-20
NC-70
BAND CENTER FREQUENCIES, Hz
Test conditions,
Cooling : Dry-bulb temperature 27
:
Wet-bulb temperature 19
:
APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
43
SPL(dB(A))
LINE
High
FAN SPEED
Heating : Dry-bulb temperature 20
:
Wet-bulb temperature 15.5
:
O
C
T
A
V
E
B
A
N
D
SO
U
N
D
PR
ESSU
R
E
L
E
V
EL
,
d
B
r
e
0
.0
0
0
2
MI
C
R
O
B
A
R
MSZ-A18YV -
E1
MSZ-A24YV -
MSZ-A26YV -
E1
E1
2.5
+
440V
250V 3.15A
MP20/MP20
TNR10V511K410
S201DH1N
3P
INDOOR UNIT
Item
Model
Indoor fan capacitor
Fuse
Vane motor
Varistor
Solid state relay
Terminal block
Indoor fan motor thermal fuse
(C11)
(F11)
(MV1/ MV2)
(NR11)
(SR141)
(TB)
MSZ-A24YV -
E1
MSZ-A18YV -
E1
MSZ-A26YV -
E1
145
:
Specifications and rating conditions of main electric parts
90
80
70
60
50
40
30
20
10
63
125
250
500
1000
2000
4000
8000
O
C
T
A
V
E
B
A
N
D
SO
U
N
D
PR
ESSU
R
E
L
E
V
EL
,
d
B
r
e
0
.0
0
0
2
MI
C
R
O
B
A
R
BAND CENTER FREQUENCIES, Hz
APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
NC-60
NC-50
NC-40
NC-30
NC-20
NC-70
Test conditions,
Cooling : Dry-bulb temperature 27
:
Wet-bulb temperature 19
:
48
SPL(dB(A))
LINE
High
FAN SPEED
Heating : Dry-bulb temperature 20
:
Wet-bulb temperature 15.5
:
INDOORUNIT
WALL
MICROPHONE
0.8m
1m
OB345A
