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TABLE 8:
DY048 INDOOR SOUND POWER LEVELS (HORIZONTAL DUCTED INLET)
UNIT DESCRIPTION / MODEL
CONFIGURATION
Indoor Blower Speed (RPM)
Blower Static Pressure (IWG)
Airflow (CFM)
Blower Motor BHP
Octave Center Freq.
63
125
250
500
1000
2000
4000
8000
1. Tested in accordance with ARI Standard 260. Refer to 2001 Standard for Sound Rating of Ducted Air Moving and Conditioning Equipment .
2. Cooling Operation – ID blower, compressor and outdoor fan operating.
3. Test Duct Dimension: 12 in. wide x 18 in. high x 8 ft. long (0.30m x 0.46m x 2.44m).
4. Test duct termination is flush with reverberation room wall.
5. Duct end (sound reflection) correction: (11, 6, 3, 1, 0, 0, 0, 0) dB at (63, 125, 250, 500, 1k, 4k, 8k) Hz.
TABLE 9:
DY048 INDOOR SOUND POWER LEVELS (HORIZONTAL DUCTED DISCHARGE)
UNIT DESCRIPTION / MODEL
CONFIGURATION
Indoor Blower Speed (RPM)
Blower Static Pressure (IWG)
Airflow (CFM)
Blower Motor BHP
Octave Center Freq.
63
125
250
500
1000
2000
4000
8000
1. Tested in accordance with ARI Standard 260. Refer to 2001 Standard for Sound Rating of Ducted Air Moving and Conditioning Equipment .
2. Cooling Operation – ID blower, compressor and outdoor fan operating.
3. Test Duct Dimension: 12 in. wide x 18 in. high x 8 ft. long (0.30m x 0.46m x 2.44m).
4. Test duct termination is flush with reverberation room wall.
5. Duct end (sound reflection) correction: (11, 6, 3, 1, 0, 0, 0, 0) dB at (63, 125, 250, 500, 1k, 4k, 8k) Hz.
10
766
0.2
1484
0.67
Cooling
ID Blower
ID Blower
2
Operation
Only (dB)
Only (dB)
(dB)
74
97
74
70
86
69
53
58
52
49
55
47
42
42
38
40
44
38
38
44
36
42
43
42
766
0.2
1484
0.67
Cooling
ID Blower
ID Blower
2
Operation
Only (dB)
Only (dB)
(dB)
77
97
75
72
86
69
60
62
57
53
56
49
47
47
42
45
46
40
46
47
40
47
47
45
DY048 / 4 Ton
Horizontal Ducted Inlet
769
1077
0.5
0.4
993
2270
0.54
1.24
Cooling
ID Blower
2
Operation
Only (dB)
(dB)
95
77
86
73
57
60
54
54
39
50
43
48
41
48
44
45
DY048 / 4 Ton
Horizontal Ducted Discharge
769
1077
0.5
0.4
993
2270
0.54
1.24
Cooling
ID Blower
2
Operation
Only (dB)
(dB)
95
84
85
81
59
71
54
60
43
58
43
54
42
57
45
54
343615-YTG-A-0807
1087
1.0
1406
0.90
Cooling
Cooling
ID Blower
2
Operation
Operation
Only (dB)
(dB)
(dB)
90
77
78
72
61
58
56
51
55
45
51
45
52
43
48
44
1087
1.0
1406
0.90
Cooling
Cooling
ID Blower
2
Operation
Operation
Only (dB)
(dB)
(dB)
91
82
83
78
71
66
61
55
59
52
55
50
58
52
54
48
Unitary Products Group
2
90
77
61
53
45
46
45
45
2
91
80
67
56
52
50
52
49
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