Service manual

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:
OCTAVE BAND SOUND PRESSURE LEVEL, dB re 0.0002 MICRO BAR
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
OCTAVE BAND SOUND PRESSURE LEVEL, dB re 0.0002 MICRO BAR
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
OB345-1.qxp 04.4.22 11:44 AM Page 5