York Predator ZT037 Technical Manual page 44

5167821-YTG-J-0518
UNIT DESCRIPTION / MODEL
TEST CONFIGURATION
Indoor Blower Speed (RPM)
External Static Pressure (IWG)
Nominal Airflow (CFM)
Blower Motor BHP
Octave Center Freq. Hz
63
125
250
500
1000
2000
4000
8000
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.
Indoor Sound Power Levels (Vertical Ducted Discharge, High Static Belt Drive)
UNIT DESCRIPTION / MODEL
TEST CONFIGURATION
Indoor Blower Speed (RPM)
External Static Pressure (IWG)
Nominal Airflow (CFM)
Blower Motor BHP
Octave Center Freq. Hz
63
125
250
500
1000
2000
4000
8000
1. Requires driven pulley #AK-56, normal high static pulley is an #AK-69.
2. 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.
44
1,039 - 5 Turns Open Equivalent
1.0
2,000
1.11
ID Blower Cooling
1
Only (dB) Operation
79 80
74 75
63 65
62 63
61 61
55 56
52 52
47 47
920 - 3.0 Turns Open Equivalent
1.0
1,200
0.68
ID Blower Cooling
2
Only (dB) Operation
81 82
78 78
69 70
67 68
62 63
60 61
61 61
54 55
ZT061 / 5 Ton / High Static Belt Drive
Vertical (Bottom Return) Ducted Inlet
1,143 - 3 Turns Open Equivalent
1.6
1,800
1.25
ID Blower
(dB) Only (dB) Operation
77
71
63
64
61
55
50
46
ZT037 / 3 Ton / High Static Belt Drive
Vertical (Bottom Supply) Ducted Discharge
1,074 - Fully Closed Equivalent
1.6
1,100
0.93
ID Blower
(dB) Only (dB) Operation
81
78
70
68
67
62
63
57
1,201 - 2 Turns Open Equivalent
Cooling ID Blower
1
(dB) Only (dB)
77 81
73 73
64 63
64 62
61 59
56 54
51 50
46 46
1,189 - 2.0 Turns Open Equivalent
Cooling ID Blower
2
(dB) Only (dB)
81 82
78 81
71 74
69 71
68 70
63 65
63 66
57 60
Johnson Controls Ducted Systems
2.0
1,600
1.39
Cooling
1
Operation (dB)
81
74
65
62
59
55
50
46
1
1
2.0
1,000
1.09
Cooling
2
Operation (dB)
82
81
74
71
71
66
66
61