528150-YTG-G-1210
Johnson Controls Unitary Products 131
Indoor Sound Power Levels (Vertical Ducted Inlet, High Static Belt Drive)
UNIT DESCRIPTION / MODEL ZH/ZJ/ZR037 / 3 Ton / High Static Belt Drive
TEST CONFIGURATION Vertical (Bottom Return) Ducted Inlet
Indoor Blower Speed (RPM)
927 - 3 Turns Open Equivalent 1,085 - 1/2 Turn Open Equivalent 1,190 - 2.5 Turns Open Equivalent
1
1. Requires driven pulley #AK-56, normal high static pulley is an #AK-69.
External Static Pressure (IWG)
1.0 1.6 2.0
1
Nominal Airflow (CFM) 1,200 1,100 1,000
Blower Motor BHP
0.68 0.93 1.09
Octave Center Freq. Hz
ID Blower
Only (dB)
Cooling
Operation
2
(dB)
2. Differentials for Cooling Operation (IDB, COMP, & ODF) are logarithmically calculated from the horizontal flow sound test.
• Tested in accordance with ARI 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.
ID Blower
Only (dB)
Cooling
Operation
2
(dB)
ID Blower
Only (dB)
Cooling
Operation
2
(dB)
63
77 79 82 83 79 81
125
68 69 70 71 72 73
250
60 67 62 69 64 67
500
58 58 63 63 62 63
1000
54 55 60 60 60 60
2000
48 49 56 56 55 55
4000
43 44 48 49 51 51
8000
44 44 45 46 47 47
UNIT DESCRIPTION / MODEL ZH/ZJ/ZR049 / 4 Ton / High Static Belt Drive
TEST CONFIGURATION Vertical (Bottom Return) Ducted Inlet
Indoor Blower Speed (RPM)
968 - 5.5 Turns Open Equivalent 1,120 - 3.5 Turns Open Equivalent 1,218 - 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
77 79 78 78 81 81
125
69 73 71 73 73 74
250
63 63 63 64 66 66
500
63 64 62 63 64 64
1000
59 59 59 59 61 61
2000
54 54 53 54 56 56
4000
49 49 48 48 50 51
8000
45 46 45 46 47 47
1. Differentials for Cooling Operation (IDB, COMP, & ODF) are logarithmically calculated from the horizontal flow sound test.
• Tested in accordance with ARI 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.
