21
OCH760
PUMY-P300YBM
PUMY-P250YBM
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-P250YBM
PUMY-P300YBM
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
14.1
15.1
Outdoor unit
Electric current
A
12.2
11.2
17.8
13.4
Voltage
V
380
380
Compressor frequency
Hz
59
73
80
85
LEV
opening
Branch box
Pulse
149
444
154
155
Pressure
High pressure/Low pressure
MPa
3.07/0.98
2.12/0.64
3.26/0.90
2.09/0.61
Temp. of
each section
Outdoor
unit
Discharge
°C
79.4
53.0
75.0
53.3
Heat exchanger outlet
36.7
12.1
38.6
8.3
Accumulator inlet
13.5
− 1.1
10.5
− 2.0
Compressor inlet
21.5
− 2.2
9.9
− 3.1
Indoor unit LEV inlet
14.0
29.0
15.0
24.8
Heat exchanger inlet
13.2
47.0
14.4
49.6
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
