Mitsubishi Electric PUHZ-W50VHA-BS Service Manual page 24

4
DATA
4-1. NOISE CRITERION CURVES
MICROPHONE
1m
1.5m
PUHZ-W85VHA(-BS)
PUHZ-W85VHAR1(-BS)
90
80
70
60
50
40
30
20 APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
10
63 125 250
BAND CENTER FREQUENCIES, Hz
OCH439H
UNIT
GROUND
SPL(dB)
MODE LINE
COOLING 48
HEATING 48
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
500 1000 2000 4000 8000
PUHZ-W50VHA(-BS)
PUHZ-W50VHAR1(-BS)
PUHZ-W50VHAR2(-BS)
90
80
70
60
50
40
30
20 APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
10
63 125 250
BAND CENTER FREQUENCIES, Hz
PUHZ-HW112YHA(-BS)
PUHZ-HW112YHA2(-BS)
PUHZ-HW112YHA2R1(-BS)
PUHZ-HW112YHA2R3(-BS)
PUHZ-HW140VHA(-BS)
PUHZ-HW140YHA(-BS)
PUHZ-HW140VHA2(-BS)
PUHZ-HW140VHA2R1(-BS)
90
80
70
60
50
40
30
20
APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
10
63 125 250
BAND CENTER FREQUENCIES, Hz
24
SPL(dB)
MODE LINE
COOLING 45
HEATING
46
500 1000 2000 4000 8000
PUHZ-HW140VHA2R2-BS
PUHZ-HW140VHA2R3(-BS)
PUHZ-HW140YHA2(-BS)
PUHZ-HW140YHA2R1-BS
PUHZ-HW140YHA2R3(-BS)
MODE SPL(dB) LINE
COOLING 53
HEATING 53
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
500 1000 2000 4000 8000
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20