Zt078 (6.5 Ton) 2Nd Stage Cooling - York ZT SERIES Technical Manual

5167821-YTG-K-1118

ZT078 (6.5 ton) 2nd stage cooling

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