Noise Criteria Curves - Mitsubishi Electric MSZ-A18YV Service Manual

Specifications and rating conditions of main electric parts
INDOOR UNIT
Item
Indoor fan capacitor
Fuse
(MV1/ MV2)
Vane motor
Varistor
Solid state relay
Terminal block
Indoor fan motor thermal fuse
3

NOISE CRITERIA CURVES

MSZ-A18YV -
E1
Test conditions,
Cooling : Dry-bulb temperature 27: Wet-bulb temperature 19:
Heating : Dry-bulb temperature 20: Wet-bulb temperature 15.5:
90
80
70
60
50
40
30
APPROXIMATE
20
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
10
63 125 250
BAND CENTER FREQUENCIES, Hz
OB345A
Model
MSZ-A18YV -
(C11)
(F11)
(NR11)
(SR141)
(TB)
145:
FAN SPEED
SPL(dB(A)) LINE
High
43
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
500 1000 2000 4000 8000
MSZ-A24YV -
E1
2.5+ 440V
250V 3.15A
MP20/MP20
TNR10V511K410
S201DH1N
3P
MSZ-A24YV -
E1
MSZ-A26YV -
E1
Test conditions,
Cooling : Dry-bulb temperature 27: Wet-bulb temperature 19:
Heating : Dry-bulb temperature 20: Wet-bulb temperature 15.5:
90
80
70
60
50
40
30
APPROXIMATE
20
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
10
63 125
BAND CENTER FREQUENCIES, Hz
5
MSZ-A26YV -
E1
FAN SPEED
SPL(dB(A))
High
48
250 500 1000 2000 4000
INDOORUNIT
1m
0.8m
MICROPHONE
E1
LINE
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
8000
WALL