5167821-YTG-J-0518
Johnson Controls Ducted Systems
35
Indoor Sound Power Levels (Horizontal Ducted Discharge, Standard Static Belt Drive)
UNIT DESCRIPTION / MODEL
ZT061 / 5 Ton / Standard Static Belt Drive
TEST CONFIGURATION
Horizontal (Side Return) Ducted Inlet
Indoor Blower Speed (RPM)
814 - 3 Turns Open Equivalent
918 - 1 Turn Open Equivalent
External Static Pressure (IWG)
0.6
0.8
Airflow (CFM)
1700
1950
Blower Motor BHP
0.42
0.88
Octave Center Freq. Hz
ID Blower Only (dB)
Cooling Operation
1
(dB)
ID Blower Only (dB)
Cooling Operation
1
(dB)
63
77
81
85
82
125
71
80
68
81
250
63
67
64
68
500
58
60
60
61
1000
56
57
58
59
2000
52
53
55
55
4000
51
51
54
54
8000
47
47
48
48
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
ZT037 / 3 Ton / Standard Static Belt Drive
TEST CONFIGURATION
Horizontal (Side Supply) Ducted Discharge
Indoor Blower Speed (RPM)
610 - 3 Turns Open Equivalent
710 - 1 Turn Open Equivalent
External Static Pressure (IWG)
0.5
0.6
Airflow (CFM)
850
950
Blower Motor BHP
0.37
0.42
Octave Center Freq. Hz
ID Blower Only (dB)
Cooling Operation
1
(dB)
ID Blower Only (dB)
Cooling Operation
1
(dB)
63
77
78
79
79
125
74
75
75
76
250
66
68
70
70
500
61
61
65
64
1000
60
62
65
66
2000
52
52
58
58
4000
52
52
59
60
8000
44
44
50
50
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.
