Noise Criteria Curves - Trane NTXWPH A Series Service Manual

NOISE CRITERIA CURVES

4
NTXMMX20A122AA
90
80
70
60
50
40
30
20
APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
10
63 125 250 500
BAND CENTER FREQUENCIES, Hz
NTXMMX30A132AA
90
80
70
60
50
40
30
20
APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
10
63 125 250 500
BAND CENTER FREQUENCIES, Hz
MICROPHONE
OBHT702
FAN SPEED FUNCTION SPL(dB ) LINE
(A)
High Cooling 50
High Heating 54
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
1000 2000 4000 8000
FAN SPEED FUNCTION SPL(dB ) LINE
(A)
52
High Cooling
High Heating 56
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
1000 2000 4000 8000
OUTDOOR UNIT
39.4 in.
NTXMMX24A132AA
90
80
70
60
50
40
30
20
APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
10
63 125
NTXMMX36A142AA
90
80
70
60
50
40
30
20
APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
10
63 125
Test conditions
Cooling: Dry-bulb temperature 95°F Wet-bulb temperature 75°F
Heating: Dry-bulb temperature 45°F Wet-bulb temperature 43°F
14
FAN SPEED FUNCTION SPL(dB )
(A)
High Cooling 51
High Heating 55
250 500 1000 2000 4000 8000
BAND CENTER FREQUENCIES, Hz
FAN SPEED FUNCTION SPL(dB )
(A)
High Cooling 54
High Heating 56
250 500 1000 2000 4000 8000
BAND CENTER FREQUENCIES, Hz
LINE
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
LINE
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20