Technical Guide
528150-YTG-T-0514
82 Johnson Controls Unitary Products
ZR090 (7.5 Ton) Reheat
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
35°F 45°F
1875
7757.4 4.6 ------ 58.7 4.9 ------
72 54.9 4.4 7.7 6.3 4.9 3.5 - - 54.6 4.7 5.8 4.5 3.2 1.9 - -
67 52.4 4.3 14.9 13.5 12.1 10.7 9.3 - 50.5 4.5 13.7 12.4 11.1 9.9 8.6 -
62 48.7 4.1 21.7 20.3 18.9 17.5 16.1 14.7 46.6 4.3 21.9 20.7 19.4 18.1 16.8 15.5
2250
7762.8 4.5 ------ 62.7 4.8 ------
72 60.0 4.4 11.2 9.1 7.0 4.9 - - 58.3 4.6 8.3 6.4 4.6 2.7 - -
67 57.2 4.2 22.2 20.1 18.0 15.9 13.8 - 53.9 4.4 19.6 17.7 15.9 14.0 12.1 -
62 53.0 4.0 32.6 30.5 28.4 26.3 24.2 22.1 49.8 4.2 31.3 29.4 27.6 25.7 23.8 22.0
57 49.6 4.0 37.1 35.0 32.9 30.8 28.7 26.6 47.9 4.2 36.2 34.3 32.5 30.6 28.8 26.9
2625
77 68.1 4.5 ------ 66.6 4.8 ------
72 65.0 4.3 14.8 12.0 9.2 6.4 - - 62.0 4.6 10.8 8.4 5.9 3.5 - -
67 61.9 4.2 29.5 26.7 23.9 21.1 18.3 - 57.3 4.4 25.4 23.0 20.6 18.1 15.7 -
62 57.4 4.0 43.6 40.8 38.0 35.2 32.4 29.6 53.0 4.2 40.6 38.2 35.8 33.3 30.9 28.5
57 53.7 3.9 47.5 46.4 44.0 41.2 38.4 35.6 50.9 4.1 45.1 44.1 42.1 39.7 37.3 34.8
3000
77 73.4 4.5 ------ 70.6 4.8 ------
72 70.0 4.3 18.4 14.9 11.4 7.9 - - 65.7 4.6 13.3 10.3 7.3 4.3 - -
67 66.6 4.2 36.8 33.3 29.8 26.3 22.8 - 60.8 4.4 31.3 28.3 25.3 22.3 19.3 -
62 61.8 4.0 54.5 51.0 47.5 44.0 40.5 37.0 56.1 4.2 50.0 47.0 44.0 40.9 37.9 34.9
57 57.8 3.9 57.8 57.8 55.1 51.6 48.1 44.6 54.0 4.1 54.0 54.0 51.8 48.8 45.8 42.8
3375
72 71.8 4.3 18.9 15.5 12.1 8.6 - - 67.4 4.6 14.3 11.1 7.9 4.7 - -
67 68.3 4.2 37.5 34.0 30.6 27.2 23.8 - 62.3 4.4 33.7 30.5 27.3 24.1 20.9 -
62 63.3 4.0 58.3 53.2 48.3 44.9 41.4 38.0 57.6 4.2 53.8 50.6 47.4 44.2 41.0 37.8
57 59.3 3.9 59.3 59.3 57.9 54.5 51.1 47.6 55.3 4.1 55.3 55.3 54.3 51.1 47.9 44.7
3750
72 73.5 4.3 19.4 16.1 12.7 9.4 - - 69.1 4.6 15.2 11.8 8.4 5.1 - -
67 69.9 4.2 38.2 34.8 31.4 28.1 24.7 - 63.9 4.4 36.0 32.6 29.3 25.9 22.5 -
62 64.9 4.0 62.1 55.3 49.1 45.7 42.4 39.0 59.0 4.2 57.6 54.3 50.9 47.5 44.1 40.7
57 60.7 3.9 60.7 60.7 60.7 57.4 54.0 50.6 56.7 4.1 56.7 56.7 56.7 53.3 50.0 46.6
55°F 65°F
1875
7759.9 5.1 ------ 57.9 5.4 ------
72 54.2 4.9 3.9 2.7 1.6 - - - 51.6 5.2 1.5 - - - - -
67 48.5 4.7 12.6 11.4 10.2 9.0 7.9 - 45.3 5.0 11.0 10.0 9.0 7.9 6.9 -
62 44.6 4.5 22.2 21.0 19.9 18.7 17.5 16.4 42.1 4.8 22.4 21.4 20.4 19.3 18.3 17.3
2250
7762.6 5.1 ------ 59.7 5.4 ------
72 56.6 4.9 5.4 3.7 2.1 - - - 53.2 5.2 2.2 - - - - -
67 50.7 4.7 17.0 15.4 13.7 12.1 10.5 - 46.6 4.9 14.3 12.9 11.6 10.2 8.9 -
62 46.6 4.5 29.9 28.3 26.7 25.1 23.5 21.8 43.4 4.7 28.8 27.5 26.1 24.7 23.4 22.0
57 46.2 4.4 35.3 33.7 32.1 30.4 28.8 27.2 42.7 4.7 33.5 32.2 30.8 29.4 28.1 26.7
2625
77 65.2 5.1 ------ 61.4 5.4 ------
72 59.0 4.9 6.8 4.7 2.7 - - - 54.7 5.1 2.9 1.2 - - - -
67 52.8 4.6 21.4 19.3 17.3 15.2 13.1 - 48.0 4.9 17.6 15.9 14.2 12.5 10.8 -
62 48.5 4.4 37.7 35.6 33.6 31.5 29.4 27.3 44.7 4.7 35.2 33.5 31.8 30.1 28.4 26.7
57 48.1 4.4 42.7 41.9 40.3 38.2 36.1 34.1 43.9 4.6 39.3 38.7 37.6 35.9 34.2 32.5
3000
77 67.8 5.1 ------ 63.1 5.3 ------
72 61.4 4.8 8.2 5.7 3.2 - - - 56.2 5.1 3.6 1.5 - - - -
67 54.9 4.6 25.8 23.3 20.8 18.3 15.7 - 49.4 4.9 20.9 18.9 16.8 14.7 12.7 -
62 50.5 4.4 45.4 42.9 40.4 37.9 35.4 32.8 45.9 4.7 41.7 39.6 37.6 35.5 33.5 31.4
57 50.1 4.3 50.1 50.1 48.5 46.0 43.4 40.9 45.2 4.6 45.2 45.2 44.4 42.3 40.3 38.2
3375
72 63.0 4.8 9.6 6.6 3.7 - - - 57.9 5.1 4.1 1.5 - - - -
67 56.4 4.6 29.8 26.9 23.9 21.0 18.0 - 50.8 4.9 25.7 23.2 20.6 18.0 15.5 -
62 51.8 4.4 49.3 48.0 46.5 43.6 40.6 37.6 47.3 4.7 45.2 44.1 43.0 40.4 37.9 35.3
57 51.4 4.3 51.4 51.4 50.6 47.6 44.7 41.7 46.5 4.6 46.5 46.5 46.1 43.6 41.0 38.4
3750
72 64.6 4.8 11.0 7.6 4.2 - - - 59.6 5.1 4.6 1.5 - - - -
67 57.9 4.6 33.9 30.5 27.1 23.7 20.3 - 52.3 4.9 30.5 27.5 24.4 21.3 18.2 -
62 53.2 4.4 53.2 53.2 52.7 49.3 45.9 42.5 48.7 4.7 48.7 48.7 48.4 45.3 42.2 39.2
57 52.7 4.3 52.7 52.7 52.7 49.3 45.9 42.5 47.9 4.6 47.9 47.9 47.9 44.8 41.7 38.6