Mitsubishi Electric PUMY-P250YBM2-BS, Technical & Service Manual

Page: 21 / 156

21
TCH091
PUMY-P300YBM2 PUMY-P250YBM2
1.5m
1m
MICROPHONE
UNIT
GROUND
4-5. NOISE CRITERION CURVES
OCT
AVE BAND SOUND PRESSURE LEVEL, dB (0 dB = 0.0002 µbar)
BAND CENTER FREQUENCIES, Hz
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
COOLING
MODE
HEATING
55
SPL(dB)
61
LINE
APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
Operation PUMY-P250YBM2 PUMY-P300YBM2
Operating
conditions
Ambient
temperature
Indoor
DB/
WB
27°C/19°C 20°C/ — 27°C/19°C 20°C/—
Outdoor 35°C/24°C 7°C/6°C 35°C/24°C 7°C/6°C
Indoor unit
No. of connected units
Unit
4 5
No. of units in operation 4 5
Model — 63 x 4 63 x 4 + 50 x 1
Piping
Main pipe
m
5 5
Branch pipe 5 5
Total pipe length 25 30
Fan speed — Hi Hi
Amount of refrigerant kg 13.6 14.9
Outdoor unit
Electric current A 12.85 12.30 18.99 14.59
Voltage V 380 380
Compressor frequency Hz 63 76 82 87
Pressure High pressure/Low pressure MPa 3.09/0.98 2.30/0.60 3.40/0.90 2.30/0.61
Temp. of
each section
Outdoor
unit
Discharge
°C
72.3 57.9 81.8 62.4
Heat exchanger outlet 38.9 7.1 40.4 5.9
Accumulator inlet 9.9 − 1.1 8.4 − 2.2
Compressor inlet 12.0 − 1.7 9.3 − 3.0
Indoor unit LEV inlet
26.0 24.8 31.8 20.9
Heat exchanger inlet 13.2 31.1 13.3 25.6
4-6. STANDARD OPERATION DATA (REFERENCE DATA)
OCT
AVE BAND SOUND PRESSURE LEVEL, dB (0 dB = 0.0002 µbar)
BAND CENTER FREQUENCIES, Hz
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
COOLING
MODE
HEATING
57
SPL(dB)
62
LINE
APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE