Technical Guide

862075-XTG-G-0415
18 Johnson Controls Unitary Products
ZF090 (26 kW) Metric
Air on
Evaporator Coil
Temperature of Air on Condenser Coil
Total
Capacity
1,2
(kW)
Total
Input
(kW)
3
Sensible Capacity (kW)
Total
Capacity
1,2
(kW)
Total
Input
(kW)
3
Sensible Capacity (kW)
m
3
/s
WB
(°C)
Return Dry Bulb (°C) Return Dry Bulb (°C)
32 29 27 24 21 18 32 29 27 24 21 18
29°C 35°C
1.06
25 30.8 6.36 13.3 10.6 9.9 - - - 30.0 7.01 13.4 10.6 7.9 - - -
22 28.7 6.35 17.2 14.5 13.3 9.1 - - 27.7 6.99 17.3 14.6 11.8 9.1 - -
19 26.6 6.33 21.1 18.4 16.7 13.1 10.4 - 25.3 6.98 21.2 18.5 15.8 13.0 10.3 -
17 24.3 6.33 23.2 22.5 20.9 17.1 14.4 11.7 23.2 6.97 23.2 22.5 19.8 17.0 14.3 11.6
14 24.2 5.78 23.1 23.1 22.4 18.5 15.8 13.1 23.1 6.96 23.1 23.1 21.2 18.4 15.7 13.0
1.24
25 31.8 6.86 14.1 11.3 10.5 - - - 30.5 7.19 16.9 12.8 8.6 - - -
22 29.6 6.85 18.7 15.8 14.1 10.0 - - 28.1 7.17 18.7 15.8 12.9 9.9 - -
19 27.4 6.84 23.3 20.2 17.8 14.1 11.0 - 25.7 7.16 20.5 18.8 17.1 15.4 13.7 -
17 25.0 6.83 23.6 23.2 22.3 18.3 15.2 12.0 23.6 7.15 23.6 23.2 21.5 18.3 15.2 12.0
14 24.9 6.25 23.5 23.5 23.8 19.8 16.5 13.2 23.5 7.14 23.5 23.5 23.0 19.7 16.4 13.1
1.42
25 32.7 7.42 14.9 12.1 11.1 - - - 31.0 7.42 20.5 14.9 9.3 - - -
22 30.5 7.40 20.1 17.0 15.0 10.8 - - 28.6 7.40 20.2 17.0 13.9 10.8 - -
19 28.2 7.39 25.4 22.0 18.8 15.1 11.6 - 26.2 7.39 19.9 19.2 18.5 17.8 17.1 -
17 25.8 7.38 24.0 24.0 23.6 19.6 16.0 12.3 24.0 7.38 24.0 24.0 23.2 19.6 16.0 12.4
14 25.6 6.77 23.8 23.8 25.2 21.0 17.2 13.4 23.8 7.38 23.8 23.8 24.9 21.0 17.1 13.3
1.57
25 33.1 7.43 17.2 13.1 11.8 - - - 31.4 7.74 20.0 14.5 9.8 - - -
22 30.8 7.41 21.7 18.2 15.9 11.1 - - 29.0 7.73 21.7 18.2 14.6 11.1 - -
19 28.6 7.40 26.2 23.2 20.0 15.8 12.1 - 26.5 7.71 23.4 21.8 19.5 17.2 14.9 -
17 26.1 7.39 24.3 24.3 25.0 20.2 16.4 12.6 24.3 7.70 24.3 24.3 23.9 20.2 16.5 12.7
14 26.0 6.81 24.2 24.2 25.7 20.8 16.9 13.1 24.2 7.70 24.2 24.2 24.7 20.8 16.9 13.1
1.72
25 33.5 7.43 19.6 14.2 12.5 - - - 31.9 8.06 19.4 14.2 10.3 - - -
22 31.2 7.42 23.2 19.3 16.8 11.5 - - 29.4 8.05 23.2 19.3 15.4 11.5 - -
19 28.9 7.41 26.9 24.4 21.2 16.6 12.7 - 26.9 8.03 26.9 24.4 20.5 16.6 12.7 -
17 26.4 7.40 24.7 24.7 26.4 20.7 16.8 12.9 24.7 8.02 24.7 24.7 24.7 20.8 16.9 13.0
14 26.3 6.85 24.5 24.5 26.3 20.6 16.7 12.8 24.5 8.02 24.5 24.5 24.5 20.6 16.7 12.9
41°C 46°C
1.06
25 28.1 7.78 12.5 9.8 7.1 - - - 26.3 8.56 11.6 8.9 6.2 - - -
22 25.9 7.78 16.4 13.7 10.9 8.2 - - 24.1 8.57 15.4 12.8 10.1 7.4 - -
19 23.6 7.78 20.2 17.5 14.8 12.1 9.4 - 21.9 8.57 19.3 16.6 13.9 11.2 8.5 -
17 21.7 7.77 21.7 21.3 18.6 15.9 13.2 10.5 20.1 8.58 20.1 20.1 17.4 14.8 12.1 9.4
14 21.6 7.77 21.6 21.6 19.8 17.0 14.3 11.6 20.0 8.58 20.0 20.0 18.4 15.7 13.0 10.3
1.24
25 28.6 7.96 14.8 11.2 7.7 - - - 26.6 8.74 12.8 9.6 6.9 - - -
22 26.3 7.96 17.8 14.9 12.0 9.1 - - 24.4 8.75 16.8 13.9 11.1 8.2 - -
19 24.0 7.96 20.7 18.6 16.2 13.8 11.5 - 22.2 8.75 20.9 18.3 15.3 12.3 9.2 -
17 22.0 7.95 22.0 21.8 20.4 17.2 14.0 10.9 20.4 8.76 20.4 20.4 19.2 16.0 12.9 9.7
14 21.9 7.95 21.9 21.9 21.6 18.3 15.1 11.8 20.3 8.76 20.3 20.3 20.2 17.0 13.7 10.5
1.42
25 29.0 8.19 17.2 12.6 8.4 - - - 27.0 8.97 13.9 10.2 7.5 - - -
22 26.6 8.19 19.2 16.1 13.0 9.9 - - 24.7 8.98 18.2 15.1 12.1 9.0 - -
19 24.3 8.19 21.2 19.6 17.6 15.6 13.5 - 22.5 8.98 22.5 20.1 16.7 13.3 10.0 -
17 22.3 8.18 22.3 22.3 22.1 18.5 14.9 11.3 20.7 8.99 20.7 20.7 21.0 17.3 13.7 10.1
14 22.2 8.18 22.2 22.2 23.5 19.6 15.8 12.0 20.6 8.99 20.6 20.6 22.1 18.3 14.5 10.7
1.57
25 29.4 8.51 18.1 12.8 8.8 - - - 27.4 9.29 16.3 11.2 7.9 - - -
22 27.0 8.51 20.6 17.1 13.7 10.2 - - 25.1 9.29 19.6 16.1 12.7 9.2 - -
19 24.7 8.51 23.1 21.5 18.5 15.6 12.6 - 22.8 9.30 22.8 21.1 17.5 13.9 10.3 -
17 22.6 8.50 22.6 22.6 22.5 18.8 15.1 11.3 21.0 9.30 21.0 21.0 21.1 17.4 13.6 9.9
14 22.5 8.50 22.5 22.5 23.2 19.3 15.5 11.6 20.9 9.30 20.9 20.9 21.6 17.8 14.0 10.2
1.72
25 29.8 8.83 19.1 13.1 9.3 - - - 27.8 9.61 18.8 12.1 8.2 - - -
22 27.4 8.83 22.1 18.2 14.3 10.5 - - 25.5 9.61 21.0 17.1 13.3 9.4 - -
19 25.0 8.83 25.0 23.3 19.4 15.6 11.7 - 23.2 9.62 23.2 22.2 18.3 14.5 10.6 -
17 23.0 8.82 23.0 23.0 23.0 19.1 15.2 11.4 21.3 9.62 21.3 21.3 21.3 17.4 13.6 9.7
14 22.9 8.82 22.9 22.9 22.9 19.0 15.1 11.3 21.2 9.62 21.2 21.2 21.2 17.3 13.5 9.7