5167821-YTG-K-1118
94
Johnson Controls Ducted Systems
Unit description/model
ZT049 / 4 ton / high static belt drive
Test configuration
Horizontal (side supply) ducted discharge
Indoor blower speed (RPM)
922 - 6 turns open equivalent
1,069 - 4 turns open equivalent
1,165 - 2.5 turns open equivalent
External static pressure (IWG)
1.0
1.6
2.0
Nominal airflow (CFM)
1,600
1,400
1,200
Blower motor BHP
0.86
1.03
1.13
Octave center freq. Hz
ID blower
only (dB)
Cooling operation
1
(dB)
ID blower
only (dB)
Cooling
Operation
1
(dB)
ID blower
only (dB)
Cooling
Operation
1
(dB)
63
80
82
82
83
84
84
125
76
77
76
77
78
79
250
71
72
72
72
74
74
500
69
69
69
69
70
70
1000
65
65
69
69
70
70
2000
64
64
64
64
65
65
4000
63
63
63
63
64
64
8000
58
58
58
58
59
59
1. Cooling operation – ID blower, compressor and outdoor fan operating at 230 VAC.
• Tested in accordance with AHRI Standard 260-2001. Refer to 2001 Standard for Sound Rating of Ducted Air Moving and Conditioning
Equipment.
• Testing datum includes effect of standard inlet air filters.
• Test duct dimension: 18 in. wide x 28 in. high x 8 ft. long, no elbows.
• Test duct termination is flush with reverberant room wall.
• Duct end (sound reflection) corrections included: (7.2, 3.4, 1.2, 0.4, 0.1, 0, 0, 0) dB at (63, 125, 250, 500, 1k, 2k, 4k, 8k) Hz respectively.
Unit description/model
ZT061 / 5 ton / high static belt drive
Test configuration
Horizontal (side supply) ducted discharge
Indoor blower speed (RPM)
1,009- 5.5 turns open equivalent
1,131 - 3 turns open equivalent
1,184 - 2 turns open equivalent
External static pressure (IWG)
1.0
1.6
2.0
Nominal airflow (CFM)
2,000
1,800
1,600
Blower motor BHP
1.04
1.25
1.39
Octave center freq. Hz
ID blower
only (dB)
Cooling
Operation
1
(dB)
ID blower
only (dB)
Cooling
Operation
1
(dB)
ID blower
only (dB)
Cooling
Operation
1
(dB)
63
84
85
82
83
82
83
125
78
79
79
79
78
79
250
75
75
74
75
73
73
500
71
71
70
71
69
69
1000
69
69
71
71
71
72
2000
66
67
67
67
66
66
4000
66
66
66
67
66
66
8000
61
62
61
62
60
60
1. Cooling operation – ID blower, compressor and outdoor fan operating at 230 VAC.
• Tested in accordance with AHRI Standard 260-2001. Refer to 2001 Standard for Sound Rating of Ducted Air Moving and Conditioning
Equipment.
• Testing datum includes effect of standard inlet air filters.
• Test duct dimension: 18 in. wide x 28 in. high x 8 ft. long, no elbows.
• Test duct termination is flush with reverberant room wall.
• Duct end (sound reflection) corrections included: (7.2, 3.4, 1.2, 0.4, 0.1, 0, 0, 0) dB at (63, 125, 250, 500, 1k, 2k, 4k, 8k) Hz respectively.
