External Static Pressure / Acoustic Data - LG MULTI F Engineering Manual

F
MULTI
F
MULTI MAX
Table 58:Multi F Ceiling-Concealed Duct (High Static) External Static Pressure Setting Values Table.
Static Pressure (in. wg)
Model No. / Nominal Capacity
of Indoor Unit (Btu/h)
LMHN240HV
24,000
LMHN360HV
36,000
• To get the desired air flow and external static pressure combination, use the setting value from the table. Using a setting value other
than that listed in the table will not provide the desired combination.
• Table data is based at 230V. Air flow rate varies according to voltage fluctuation.
Figure 157: Sound Pressure Level Measurement Location.
DISCHARGE
DUCT
6.6 ft.
Figure 158: Sound Pressure Level Diagrams.
LMHN240HV
80
70
60
50
40
30
20
Approximate
Hearing
Threshold
10
63 125 250 500 1000 2000
Octave Band Center Frequency (Hz)
DUCT (HIGH STATIC) INDOOR UNITS
0.1
Airflow Rate / CFM
High 688 82
Mid 618 78
Low 530 73
High 1,130 -
Mid 953 -
Low 706 -
SUCTION
DUCT
3.3 ft.
80
70
NC-65
60
NC-60
NC-55
50
NC-50
NC-45
40
NC-40
NC-35
30
NC-30
NC-25
20
Approximate
NC-20
Hearing
Threshold
NC-15
10
4000 8000 63 125
Octave Band Center Frequency (Hz)
Due to our policy of continuous product innovation, some specifications may change without notification.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. "LG" is a registered trademark of LG Corp.

External Static Pressure / Acoustic Data

0.16 0.23 0.31 0.39
Setting Value (in. wg)
92 103 113 122
89 99 110 119
86 96 107 116
124 133 140 148
112 122 130 137
97 107 117 125
• 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 power levels are measured in dB(A)±3.
• Tested in anechoic chamber per ISO Standard 3745.
Table 59:Sound Pressure Levels (dB[A]).
Sound Pressure Levels (dB[A]) (Cooling and Heating)
Model No.
High Fan Speed
LMHN240HV
LMHN360HV
LMHN360HV
NC-65
NC-60
NC-55
NC-50
NC-45
NC-40
NC-35
NC-30
NC-25
NC-20
NC-15
250 500 1000 2000 4000 8000
0.47 0.55 0.62 0.70
131 140 147
128 137 144
125 134 141
154 160 -
145 152 -
133 141 -
Medium Fan
Low Fan Speed
Speed
37 36
44 42
DUCT (HIGH STATIC) | 117
0.78
154 160
151 157
148 154
- -
- -
- -
35
40