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251934-YTG-J-0910
ZR300 (25 Ton) Alternate Reheat Mode (Continued)
Air on
Evaporator Coil
Total
1
Capacity
WB
CFM
(MBh)
(°F)
72
152.5
67
140.1
7500
62
127.9
57
123.4
72
156.4
67
143.8
8750
62
131.2
57
126.6
72
160.4
67
147.4
10000
62
134.6
57
129.9
72
162.4
67
149.2
11250
62
136.2
57
131.5
72
164.4
67
151.0
12500
62
137.9
57
133.2
1. These capacities are gross ratings. For net capacity, deduct air blower motor, MBh = 3.415 x kW. Refer to the appropriate
Blower Performance Table for the kW of the supply air blower motor.
2. These ratings include the condenser fan motors (total 1 kW) and the compressor motors but not the supply air blower motor.
No Sensible Cooling Capacity
40
Temperature of Air on Condenser Coil
Sensible Capacity (MBh)
Total
Input
Return Dry Bulb (°F)
2
(kW)
85
80
75
75°F
20.6
36.8
1.1
19.9
47.0
11.4
19.1
99.0
55.0
26.0
16.5
123.4
96.6
60.9
20.7
41.8
29.0
20.0
53.0
42.0
19.2
110.0
90.0
25.0
17.0
126.6
110.0
67.8
20.8
46.7
20.1
59.0
11.0
19.3
116.0
85.0
30.0
17.7
125.0
100.0
50.0
21.9
57.5
2.2
21.2
69.2
13.8
20.4
120.0
99.0
40.0
18.6
131.5
125.0
69.0
23.0
60.0
43.0
22.3
78.0
65.0
21.4
114.0
100.0
40.0
19.6
133.2
128.0
69.0
Total
Total
1
Capacity
Input
(MBh)
(kW)
70
65
139.7
21.9
130.2
21.2
117.3
20.5
25.3
112.3
20.1
143.9
21.9
134.1
21.2
120.8
20.5
25.7
115.7
20.2
148.1
21.9
137.9
21.2
124.3
20.5
23.0
119.0
20.2
151.9
23.1
141.5
22.4
127.5
21.6
12.0
122.1
21.2
155.7
24.2
145.0
23.5
130.7
22.7
9.0
125.1
22.3
Sensible Capacity (MBh)
Return Dry Bulb (°F)
2
85
80
75
70
85°F
33.1
43.3
7.7
108.2
72.6
36.9
1.3
112.3
98.9
63.3
27.6
39.4
25.0
50.4
38.0
112.0
98.0
35.9
115.7
106.3
64.2
22.0
45.6
57.4
8.8
115.0
75.0
15.0
119.0
100.0
47.0
16.5
52.1
65.0
9.6
120.0
91.0
35.7
122.1
119.4
64.0
8.7
58.6
40.0
72.5
60.0
110.0
98.7
36.6
125.1
122.0
63.0
7.0
Johnson Controls Unitary Products
65
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