York Predator ZT037 Technical Manual page 37

Indoor Sound Power Levels (Vertical Ducted Inlet, Standard Static Belt Drive)
UNIT DESCRIPTION / MODEL
TEST CONFIGURATION
Indoor Blower Speed (RPM)
External Static Pressure (IWG)
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.
UNIT DESCRIPTION / MODEL
TEST CONFIGURATION
Indoor Blower Speed (RPM)
External Static Pressure (IWG)
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.
Johnson Controls Ducted Systems
609 - 3 Turns Open Equivalent
0.4
850
0.32
ID Blower Only (dB) Cooling Operation
76
63
55
54
48
44
41
42
609 - 3 Turns Open Equivalent
0.4
850
0.32
ID Blower Only (dB) Cooling Operation
76
63
55
54
48
44
41
42
ZT037 / 3 Ton / Standard Static Belt Drive
Vertical (Bottom Return) Ducted Inlet
1
(dB) ID Blower Only (dB)
76
70
62
55
48
44
44
43
ZT049 / 4 Ton / Standard Static Belt Drive
Vertical (Bottom Return) Ducted Inlet
1
(dB) ID Blower Only (dB)
76
70
62
55
48
44
44
43
5167821-YTG-J-0518
708 - 1 Turn Open Equivalent
0.4
1150
0.38
Cooling Operation
74 76
66 70
59 62
58 59
53 53
48 48
45 46
43 44
708 - 1 Turn Open Equivalent
0.4
1150
0.38
Cooling Operation
74 76
66 70
59 62
58 59
53 53
48 48
45 46
43 44
1
(dB)
1
(dB)
37