LG ABNW18GBHC0 Engineering Product Data Book page 15

Compact
7. Sound levels
7.1 Sound pressure level
Overall
DISCHARGE
DUCT
2m
Model
ABNW18GBHC0[UB18C NH0]
ABNW24GBHC0[UB24C NH0]
h
indicates values at 'Standard Mode'.
External Static Pressure 2.5(25) [mmAq(Pa)]
ABNW18GBHC0 [UB18C NH0]
80
70
60
50
40
30
20
Approximate
Hearing
Threshold
10
63 125 250 500 1 000 2 000 4 000 8 000
Octave Band Center Frequency (Hz)
Indoor unit
SUCTION
DUCT
1.5m
2m
Sound Pressure Levels (dB(A),H-M-L)
External Static Pressure [mmAq(Pa)]
2.5(25) 4(39)
36-34-32 38-35-33 39-36-34
38-36-34 39-37-35 40-38-36
ABNW24GBHC0 [UB24C NH0]
80
n
High
▲ Mid
l Low
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
63 125
Octave Band Center Frequency (Hz)
Notes:
- Data is valid at nominal operation condition
- Reference accoustic pressure 0dB = 20μPa.
- Sound level will vary depending on a range of factors such as
the construction(acoustic absorption coefficient) of particular
room in which the equipment is installed.
- The operating conditions are assumed to be standard.
6(59) 8(78)
40-37-35
41-39-37
n
High
▲ Mid
l Low
NC-65
NC-60
NC-55
NC-50
NC-45
NC-40
NC-35
NC-30
NC-25
NC-20
NC-15
250 500 1 000 2 000 4 000 8 000
Ceiling concealed duct - Middle static pressure
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