Owners Manual

MULTI F OUTDOOR UNIT | 279
Multi F Outdoor Unit Data
Due to our policy of continuous product innovation, some specications may change without notication.
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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
Outdoor Fan Motor
Indoor
Fan Motor
kW FLA FLA
1.5 LMU18CHV
60 208 - 230 187 - 253
13.3 20 1 8.9 0.09 0.59 1.60
2 LMU24CHV 14.3 20 1 9.4 0.09 0.59 2.00
3 LMU36CHV 17.9 25 1 11.2 0.12 0.73 3.20
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.
Indoor Fan Motor (FLA) is based on the maximum combination of
indoor units.
The max combination for each outdoor unit is:
- 18,000 ODU (LMU18CHV): 12,000 IDU x 2
- 24,000 ODU (LMU24CHV): 12,000 IDU x 2 + 9,000 IDU x 1
- 36,000 ODU (LMU36CHV): 12,000 IDU x 4
Table 272: 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])
Cooling Heating
LMU18CHV 49 52
LMU24CHV 49 52
LMU36CHV 52 55
Electrical Data
Acoustic Data
4.9 feet
3.3 feet
Microphone
Figure 9: Acoustic Measurement Location.
Figure 10: Sound Pressure Level Diagrams.
Table 273: Sound Pressure Levels (dB[A]).
Octave Band Center Frequency (Hz)
Octave Band Sound Pressure Level (0dB = 20μPa)
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
Octave Band Center Frequency (Hz)
Octave Band Sound Pressure Level (0dB = 20μPa)
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
Octave Band Center Frequency (Hz)
Octave Band Sound Pressure Level (0dB = 20μPa)
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
LMU18CHV LMU24CHV LMU36CHV
▲Cooling
Heating
▲Cooling
Heating
▲Cooling
Heating