5167821-YTG-J-0518
Johnson Controls Ducted Systems
45
UNIT DESCRIPTION / MODEL
ZT049 / 4 Ton / High Static Belt Drive
TEST CONFIGURATION
Vertical (Bottom Supply) Ducted Discharge
Indoor Blower Speed (RPM)
962 - 5.5 Turns Open Equivalent
1,092 - 3.5 Turns Open Equivalent
1,190 - 2.0 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
83
84
82
82
83
83
125
80
81
79
80
80
81
250
75
75
74
75
75
75
500
71
72
70
71
71
72
1000
66
67
70
71
72
72
2000
63
64
64
64
65
65
4000
64
64
64
64
65
66
8000
58
59
59
59
60
60
1. Differentials for Cooling Operation (IDB, COMP, & ODF) are logarithmically calculated from the horizontal flow sound test.
• 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
Vertical (Bottom Supply) Ducted Discharge
Indoor Blower Speed (RPM)
1,033 - 5.5 Turns Open Equivalent
1,135 - 3 turns Open Equivalent
1,175 - 2.5 Turns Open Equivalent
External Static Pressure (IWG)
1.0
1.6
2.0
Nominal Airflow (CFM)
2,000
1,135
1,175
Blower Motor BHP
1.11
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
83
83
83
83
85
86
125
84
84
82
82
79
81
250
79
80
77
78
66
66
500
73
73
70
71
65
66
1000
69
70
69
70
61
65
2000
67
67
65
66
60
61
4000
67
68
66
67
61
62
8000
62
63
60
61
54
54
1. Differentials for Cooling Operation (IDB, COMP, & ODF) are logarithmically calculated from the horizontal flow sound test.
• 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.
Outdoor Sound Power Levels ZT037-061
Size
(Tons)
Model
Sound Rating
1
dB (A)
Octave Band Centerline Frequency (Hz)
63
125
250
500
1000
2000
4000
8000
037
(3)
ZT
75
78.5
78.5
74.0
72.0
68.5
65.0
60.5
53.0
049
(4)
ZT
75
83.0
78.5
74.5
72.0
69.5
63.0
58.0
55.5
061
(5)
ZT
75
80.0
78.0
74.5
72.5
69.0
63.0
57.5
52.0
1. Rated in accordance with AHRI 270 standard.
