5167821-YTG-K-1118
36 Johnson Controls Ducted Systems
ZT078 (6.5 ton) 2nd stage cooling
Air on evaporator
coil
Temperature of air on condenser coil
Total
capacity
1
(MBh)
Total input
(kW)
2
Sensible capacity (MBh)
Total
capacity
1
(MBh)
Total input
(kW)
2
Sensible capacity (MBh)
CFM
WB
(°F)
Return dry bulb (°F) Return dry bulb (°F)
90 85 80 75 70 65 90 85 80 75 70 65
75°F 85°F
1125
77 66.8 3.3 26.7 22.3 18.7 - - - 62.4 3.4 24.9 21.2 17.2 - - -
72 60.4 3.1 32.5 28.9 25.3 21.7 - - 55.9 3.4 31.8 27.8 23.9 19.9 - -
67 54.0 2.9 38.4 35.6 32.0 28.4 24.8 - 49.3 3.3 38.7 34.5 30.5 26.5 22.6 -
62 46.9 2.8 46.9 46.9 39.7 36.1 32.5 28.9 42.9 3.4 42.9 42.9 36.1 32.1 28.2 24.2
1350
77 72.2 3.0 32.4 27.0 21.6 - - - 66.1 3.3 30.1 24.8 19.5 - - -
72 65.3 2.8 40.2 34.7 29.3 23.9 - - 59.2 3.2 37.6 32.3 27.0 21.7 - -
67 58.3 2.6 47.9 42.5 37.1 31.7 26.2 - 52.2 3.2 45.1 39.8 34.5 29.2 23.9 -
62 50.7 2.5 50.7 50.7 45.9 40.5 35.0 29.6 45.4 3.2 45.4 45.4 40.9 35.6 30.3 25.0
57 47.8 3.0 47.8 47.8 43.2 37.8 32.4 27.0 43.7 3.2 43.7 43.7 39.4 34.1 28.8 23.5
1575
77 77.7 2.7 38.1 31.7 24.5 - - - 69.8 3.1 35.3 28.4 21.8 - - -
72 70.2 2.5 47.8 40.6 33.3 26.1 - - 62.5 3.0 43.4 36.8 30.2 23.5 - -
67 62.7 2.3 57.5 49.4 42.2 34.9 27.7 - 55.1 3.0 51.6 45.2 38.6 31.9 25.3 -
62 54.5 2.2 54.5 54.5 52.1 44.8 37.6 30.4 47.9 3.0 47.9 47.9 45.7 39.0 32.4 25.8
57 51.4 2.7 51.4 51.4 49.1 41.9 34.7 27.4 46.1 3.0 46.1 46.1 44.0 37.3 30.7 24.1
1800
77 83.1 2.4 43.8 36.5 27.4 - - - 73.4 2.9 40.4 32.0 24.1 - - -
72 75.1 2.2 55.4 46.4 37.3 28.3 - - 65.7 2.9 49.2 41.3 33.3 25.4 - -
67 67.0 2.1 67.0 56.3 47.2 38.2 29.1 - 58.1 2.8 58.1 50.6 42.6 34.7 26.7 -
62 58.3 2.0 58.3 58.3 58.3 49.2 40.2 31.1 50.4 2.9 50.4 50.4 50.4 42.5 34.5 26.6
57 55.0 2.4 55.0 55.0 55.0 45.9 36.9 27.9 48.6 2.9 48.6 48.6 48.6 40.6 32.6 24.7
2025
72 75.4 2.4 57.7 48.3 39.0 29.6 - - 66.2 2.9 52.5 43.9 35.3 26.8 - -
67 67.3 2.2 67.3 59.9 49.3 39.9 30.6 - 58.5 2.9 58.5 53.7 45.2 36.6 28.0 -
62 58.5 2.1 58.5 58.5 58.5 49.1 39.8 30.5 50.8 2.9 50.8 50.8 50.8 42.2 33.7 25.1
57 55.2 2.6 55.2 55.2 55.2 45.8 36.5 27.2 48.9 2.9 48.9 48.9 48.9 40.4 31.8 23.2
2250
72 75.6 2.5 59.9 50.3 40.6 31.0 - - 66.7 2.9 55.7 46.5 37.3 28.1 - -
67 67.5 2.4 67.5 63.5 51.3 41.7 32.0 - 58.9 2.9 58.9 56.9 47.7 38.5 29.4 -
62 58.7 2.3 58.7 58.7 58.7 49.1 39.4 29.8 51.2 2.9 51.2 51.2 51.2 42.0 32.8 23.6
57 55.4 2.7 55.4 55.4 55.4 45.7 36.1 26.4 49.3 2.9 49.3 49.3 49.3 40.1 30.9 21.7
95°F 105°F
1125
77 58.0 3.6 23.1 20.1 15.8 - - - 52.8 4.6 19.2 17.3 13.1 - - -
72 51.4 3.7 31.1 26.7 22.4 18.0 - - 46.3 4.7 27.9 23.7 19.5 15.3 - -
67 44.7 3.8 39.0 33.3 29.0 24.6 20.3 - 39.8 4.8 36.6 30.1 25.9 21.7 17.5 -
62 38.8 4.0 38.8 38.8 32.5 28.2 23.8 19.5 35.2 4.8 35.2 35.2 28.8 24.6 20.4 16.2
1350
77 59.9 3.6 27.8 22.6 17.4 - - - 54.7 4.5 24.8 19.8 14.7 - - -
72 53.1 3.7 35.1 29.9 24.7 19.5 - - 47.9 4.6 31.9 26.9 21.8 16.7 - -
67 46.2 3.7 42.4 37.2 32.0 26.8 21.6 - 41.2 4.6 39.1 34.0 28.9 23.9 18.8 -
62 40.1 3.9 40.1 40.1 35.9 30.7 25.5 20.3 36.5 4.6 36.5 36.5 32.2 27.1 22.1 17.0
57 39.6 3.5 39.6 39.6 35.5 30.3 25.1 19.9 36.2 4.2 36.2 36.2 31.9 26.9 21.8 16.7
1575
77 61.8 3.5 32.4 25.1 19.0 - - - 56.5 4.3 30.4 22.2 16.2 - - -
72 54.7 3.6 39.1 33.0 27.0 21.0 - - 49.6 4.4 36.0 30.1 24.1 18.2 - -
67 47.6 3.7 45.7 41.0 35.0 29.0 22.9 - 42.7 4.5 41.6 37.9 32.0 26.1 20.1 -
62 41.3 3.9 41.3 41.3 39.2 33.2 27.2 21.2 37.7 4.5 37.7 37.7 35.6 29.7 23.7 17.8
57 40.9 3.4 40.9 40.9 38.8 32.8 26.7 20.7 37.4 4.1 37.4 37.4 35.3 29.4 23.4 17.5
1800
77 63.7 3.4 37.1 27.5 20.7 - - - 58.4 4.2 36.0 24.6 17.8 - - -
72 56.4 3.5 43.1 36.2 29.3 22.5 - - 51.3 4.2 40.0 33.2 26.4 19.6 - -
67 49.1 3.6 49.1 44.9 38.0 31.1 24.2 - 44.1 4.3 44.1 41.9 35.1 28.3 21.5 -
62 42.6 3.8 42.6 42.6 42.6 35.7 28.9 22.0 39.0 4.3 39.0 39.0 39.0 32.2 25.4 18.6
57 42.1 3.3 42.1 42.1 42.1 35.3 28.4 21.5 38.7 3.9 38.7 38.7 38.7 31.9 25.1 18.3
2025
72 57.1 3.4 47.3 39.5 31.7 23.9 - - 52.0 4.1 43.8 36.1 28.5 20.8 - -
67 49.7 3.5 49.7 47.6 41.0 33.3 25.5 - 44.7 4.2 44.7 43.6 37.8 30.1 22.5 -
62 43.1 3.7 43.1 43.1 43.1 35.3 27.5 19.7 39.6 4.2 39.6 39.6 39.6 31.9 24.3 16.6
57 42.7 3.2 42.7 42.7 42.7 34.9 27.1 19.3 39.3 3.8 39.3 39.3 39.3 31.6 23.9 16.3
2250
72 57.8 3.3 51.5 42.8 34.1 25.3 - - 52.8 4.0 47.6 39.1 30.5 22.0 - -
67 50.3 3.4 50.3 50.3 44.1 35.4 26.7 - 45.4 4.1 45.4 45.4 40.5 32.0 23.5 -
62 43.7 3.6 43.7 43.7 43.7 34.9 26.2 17.5 40.2 4.1 40.2 40.2 40.2 31.6 23.1 14.6
57 43.2 3.2 43.2 43.2 43.2 34.5 25.7 17.0 39.8 3.7 39.8 39.8 39.8 31.3 22.8 14.3
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