Multi F Outdoor Unit Engineering Manual

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116 | MULTI F OUTDOOR UNIT
Multi F and Multi F MAX Heat Pump System Engineering Manual
MULTI
F
MAX
MULTI
F
Electrical and Acoustic Data
MULTI F OUTDOOR UNIT
Nominal
Tons
Unit Model No. Hertz Voltage
Voltage
Range
(Min. to Max.)
MCA MOP
Compressor
Quantity
Compressor
Motor RLA
Condenser Fan Motor(s)
Condenser
Fan Quantity.
Condenser Fan
Motor FLA
1.5 LMU187HV
60 208 - 230 187 - 253
11.0 15 1 8.2 1 0.40
2 LMU247HV 15.4 25 1 11.6 1 0.40
3 LMU369HV 16.8 25 1 12.1 2 0.55 x 2
Voltage tolerance is ±10%.
Maximum allowable voltage unbalance is 2%.
RLA = Rated Load Amps.
MCA = Minimum Circuit Ampacity.
Maximum Overcurrent Protection (MOP) is calculated as follows:
(Largest motor FLA x 2.25) + (Sum of other motor FLA) rounded down
to the nearest standard fuse size.
Table 110: Electrical Data.
•Measurementtaken4.9′abovefinishedfloor,andatadistanceof
3.3′fromfaceofunit.
•Measurements taken with no attenuation and units operating at full
load normal operating condition.
•Sound level will vary depending on a range of factors such as
construction (acoustic absorption coefficient) of particular area in
which the equipment is installed.
•Sound level may be increased in static pressure mode or if air
guide is used.
•Sound pressure levels are measured in dB(A)±3.
•Tested in anechoic chamber per ISO Standard 3745.
Model No. Sound Pressure Level (dB[A])
LMU187HV 51
LMU247HV 51
LMU369HV 57
Electrical Data
Acoustic Data
4.9 feet
3.3 feet
Microphone
Figure 9: Acoustic Measurement Location.
Sound pressure level (0dB = 20μPa)
Octave band center frequency (Hz)
Sound pressure level (0dB = 20μPa)
Octave band center frequency (Hz)
10
20
30
40
50
60
70
80
63 125 250 500 1000 2000 4000 8000
NC-15
NC-20
NC-25
NC-30
NC-35
NC-40
NC-45
NC-50
NC-55
NC-60
NC-65
Approximate
Hearing
Threshold
10
20
30
40
50
60
70
80
63 125 250 500 1000 2000 4000 8000
NC-15
NC-20
NC-25
NC-30
NC-35
NC-40
NC-45
NC-50
NC-55
NC-60
NC-65
Approximate
Hearing
Threshold
10
20
30
40
50
60
70
80
63 125 250 500 1000 2000 4000 8000
NC-15
NC-20
NC-25
NC-30
NC-35
NC-40
NC-45
NC-50
NC-55
NC-60
NC-65
Approximate
Hear ing
Threshol d
Sound pressure level (0dB = 20μPa)
Octave band center frequency (Hz)
LMU187HV
LMU247HV LMU369HV
Figure 10: Sound Pressure Level Diagrams.
Table 111: Sound Pressure Levels (dB[A]).