Noise Criterion Curves; Standard Operation Data (Reference Data) - Mitsubishi Electric PUMY-P250YBM Technical & Service Manual

4-5. NOISE CRITERION CURVES

PUMY-P250YBM
90
80
70
60
50
40
30
20 APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
10
63 125 250
BAND CENTER FREQUENCIES, Hz

4-6. STANDARD OPERATION DATA (REFERENCE DATA)

Operation
Indoor
Ambient
temperature
Outdoor
No. of connected units
Indoor unit No. of units in operation
Model
Operating
conditions
Main pipe
Piping Branch pipe
Total pipe length
Fan speed
Amount of refrigerant
Electric current
Outdoor unit Voltage
Compressor frequency
LEV
Branch box
opening
Pressure High pressure/Low pressure
Discharge
Heat exchanger outlet
Outdoor
unit
Accumulator inlet
Temp. of
each section
Compressor inlet
LEV inlet
Indoor unit
Heat exchanger inlet
OCH760
MODE SPL(dB) LINE
COOLING 55
HEATING 61
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
500 1000 2000 4000 8000
27°C/19°C
DB/
WB
35°C/24°C
Unit
—
m
—
kg
A
12.2
V
Hz
59
Pulse
149
MPa
3.07/0.98
79.4
36.7
13.5
°C
21.5
14.0
13.2
PUMY-P300YBM
90
80
70
60
50
40
30
20 APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
10
63 125
BAND CENTER FREQUENCIES, Hz
MICROPHONE
1m
1.5m
PUMY-P250YBM
20°C/ —
7°C/6°C
4
4
63 x 4
5
5
25
Hi
14.1
11.2
380
73
444
2.12/0.64
53.0
12.1
− 1.1
− 2.2
29.0
47.0
21
MODE SPL(dB)
COOLING 57
HEATING 62
250 500 1000 2000 4000 8000
UNIT
GROUND
PUMY-P300YBM
27°C/19°C 20°C/—
35°C/24°C 7°C/6°C
5
5
63 x 4 + 50 x 1
5
5
30
Hi
15.1
17.8 13.4
380
80
154
3.26/0.90 2.09/0.61
75.0 53.3
38.6
10.5 − 2.0
9.9 − 3.1
15.0 24.8
14.4 49.6
LINE
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
85
155
8.3