Dy048 Indoor Sound Power Levels; Horizontal Ducted Inlet; Horizontal Ducted Discharge - York DY 048 Technical Manual

343615-YTG-B-0308
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.
Johnson Controls Unitary Products
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
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
2
90
77
61
53
45
46
45
45
2
91
80
67
56
52
50
52
49
11