13
GROSS COOLING CAPACITIES (cont)
LEGEND
50XCA024 (20 TONS)
Entering
Condenser Air
AIR ENTERING EVAPORATOR — 80 F Edb (F) - CFM
10,000 8,000 6,000
Air Entering Evaporator — Ewb (F)
ECT (F) CFM
57 62 67 75 57 62 67 75 57 62 67 75
BF 0.22 0.06 0.05 0.02 0.36 0.12 0.08 0.06 0.46 0.22 0.11 0.09
55
8,550
TC 283.6 283.9 303.4 343.6 266.0 272.2 294.2 334.0 241.5 256.8 279.6 319.2
SHC 283.6 283.9 235.7 152.1 266.0 252.8 211.8 142.4 241.5 217.7 185.8 132.0
LDB 54.01 54.11 58.63 66.25 49.52 51.19 56.00 63.92 43.11 46.94 51.95 60.18
LWB 45.86 52.02 57.44 65.97 43.68 49.79 55.15 63.77 40.42 46.12 51.44 60.16
kW 12.84 12.85 13.26 14.06 12.50 12.62 13.07 13.86 12.04 12.34 12.78 13.56
11,400
TC 285.9 286.2 307.0 348.6 267.7 274.4 297.3 338.8 242.7 258.5 282.1 323.0
SHC 285.9 286.2 237.3 153.7 267.7 253.9 213.1 144.0 242.7 218.6 186.9 133.4
LDB 53.79 53.90 58.48 66.10 49.33 51.06 55.85 63.74 42.92 46.80 51.79 59.96
LWB 45.75 51.93 57.31 65.82 43.58 49.68 55.01 63.59 40.33 45.99 51.28 59.95
kW 11.73 11.75 12.06 12.72 11.46 11.56 11.91 12.56 11.10 11.33 11.68 12.31
12,700
TC 286.5 287.3 308.0 350.2 268.1 274.9 298.2 340.1 243.0 259.0 282.8 324.1
SHC 286.5 284.4 237.7 154.3 268.1 254.3 213.5 144.5 243.0 218.9 187.2 133.8
LDB 53.74 54.06 58.44 66.05 49.27 51.03 55.81 63.68 42.87 46.77 51.74 59.90
LWB 45.73 51.89 57.28 65.77 43.56 49.65 54.97 63.53 40.30 45.96 51.24 59.89
kW 11.46 11.33 11.60 12.19 11.20 11.30 11.64 12.04 10.85 11.07 11.41 11.82
75
8,550
TC 265.8 266.0 281.2 318.7 249.8 252.9 273.0 310.6 227.4 238.7 260.2 297.4
SHC 265.8 266.0 227.0 143.8 249.8 243.1 203.1 134.2 227.4 209.0 177.2 123.9
LDB 55.64 55.74 59.41 66.99 51.38 52.29 56.98 64.84 45.26 48.26 53.23 61.38
LWB 46.63 52.71 58.20 66.68 44.59 50.76 56.10 64.65 41.53 47.41 52.69 61.33
kW 16.17 16.18 16.52 17.40 15.81 15.88 16.33 17.21 15.33 15.57 16.05 16.90
11,400
TC 267.9 268.2 284.7 323.1 251.4 255.2 275.6 314.5 228.6 240.6 262.3 300.7
SHC 267.9 268.2 228.4 145.2 251.4 244.2 204.1 135.6 228.6 209.9 178.1 125.1
LDB 55.44 55.54 59.28 66.87 51.19 52.16 56.87 64.69 45.08 48.13 53.10 61.20
LWB 46.54 52.63 58.09 66.56 44.50 50.64 55.99 64.50 41.44 47.27 52.56 61.15
kW 14.81 14.82 15.11 15.74 14.54 14.62 14.94 15.60 14.18 14.39 14.72 15.36
12,700
TC 268.8 269.1 285.5 325.1 252.1 255.7 276.8 316.2 229.1 241.1 263.3 302.2
SHC 268.8 269.1 228.8 145.9 252.1 244.6 204.7 136.2 229.1 210.1 178.6 125.6
LDB 55.36 55.46 59.25 66.80 51.11 52.12 56.80 64.62 44.99 48.09 53.03 61.12
LWB 46.50 52.59 58.06 66.50 44.46 50.61 55.93 64.44 41.40 47.24 52.50 61.08
kW 14.47 14.47 14.72 15.36 14.21 14.27 14.59 15.21 13.87 14.05 14.38 14.98
95
8,550
TC 246.1 246.4 256.8 290.7 232.0 231.9 249.7 284.2 212.0 219.1 238.8 273.1
SHC 246.1 246.4 217.3 134.7 232.0 231.9 193.6 125.3 212.0 199.5 168.1 115.1
LDB 57.44 57.53 60.29 67.82 53.42 53.57 58.05 65.84 47.62 49.70 54.61 62.69
LWB 47.47 53.46 59.04 67.48 45.58 51.79 57.13 65.63 42.73 48.77 54.04 62.61
kW 20.12 20.13 20.40 21.30 19.76 19.76 20.22 21.11 19.25 19.43 19.94 20.83
11,400
TC 247.9 248.2 259.7 295.0 233.3 234.0 251.7 287.7 212.8 220.7 240.4 276.1
SHC 247.9 248.2 218.5 136.1 233.3 233.9 194.4 126.5 212.8 200.2 168.7 116.1
LDB 57.27 57.37 60.18 67.70 53.27 53.33 57.97 65.71 47.48 49.59 54.51 62.53
LWB 47.39 53.39 58.94 67.36 45.50 51.69 57.04 65.50 42.66 48.66 53.93 62.46
kW 18.61 18.61 18.83 19.50 18.34 18.35 18.68 19.36 17.97 18.11 18.47 19.14
12,700
TC 248.9 249.2 260.6 297.0 234.2 234.7 253.0 289.5 213.5 221.2 241.5 277.6
SHC 248.9 249.2 218.9 136.8 234.2 233.6 195.0 127.1 213.5 200.5 169.3 116.7
LDB 57.18 57.27 60.15 67.63 53.17 53.37 57.89 65.64 47.38 49.54 54.43 62.45
LWB 47.35 53.35 58.91 67.30 45.46 51.65 56.99 65.43 42.61 48.62 53.87 62.38
kW 18.19 18.19 18.39 19.02 17.94 17.95 18.26 18.89 17.59 17.73 18.07 18.68
105
8,550
TC 235.4 235.7 243.1 275.6 222.1 222.4 236.4 269.4 203.4 208.0 226.5 259.4
SHC 235.4 235.7 211.9 129.9 222.1 222.4 188.5 120.4 203.4 194.1 163.0 110.2
LDB 58.42 58.51 60.78 68.26 54.55 54.65 58.63 66.39 48.93 50.50 55.37 63.41
LWB 47.92 53.86 59.50 67.90 46.11 52.25 57.71 66.16 43.39 49.53 54.79 63.32
kW 22.31 22.32 22.52 23.42 21.95 21.96 22.35 23.25 21.44 21.58 22.08 22.98
11,400
TC 237.0 237.2 246.4 280.4 223.3 223.6 239.3 273.2 204.1 209.9 228.5 262.6
SHC 237.0 237.2 213.1 131.4 223.3 223.6 189.5 121.6 204.1 195.0 163.7 111.3
LDB 58.27 58.37 60.67 68.12 54.42 54.52 58.51 66.26 48.81 50.38 55.26 63.25
LWB 47.85 53.80 59.39 67.77 46.05 52.19 57.59 66.03 43.33 49.39 54.67 63.15
kW 20.77 20.77 20.95 21.63 20.50 20.50 20.81 21.48 20.11 20.22 20.60 21.27
12,700
TC 238.1 238.3 247.2 281.7 224.2 224.5 240.1 274.9 204.8 210.4 229.7 264.1
SHC 238.1 238.3 213.6 131.8 224.2 224.5 189.9 122.2 204.8 195.2 164.3 111.9
LDB 58.17 58.26 60.63 68.08 54.31 54.41 58.47 66.18 48.71 50.34 55.18 63.16
LWB 47.81 53.76 59.36 67.73 46.00 52.15 57.55 65.96 43.28 49.36 54.60 63.07
kW 20.32 20.32 20.48 21.11 20.07 20.07 20.36 20.99 19.72 19.82 20.17 20.79
115
8,550
TC 223.9 224.1 229.1 259.8 211.6 211.8 223.0 254.3 194.2 196.6 213.9 245.2
SHC 223.9 224.1 206.2 124.8 211.6 211.8 183.2 115.4 194.2 188.6 157.8 105.3
LDB 59.48 59.56 61.30 68.71 55.76 55.85 59.23 66.95 50.33 51.34 56.15 64.14
LWB 48.40 54.29 59.96 68.34 46.68 52.76 58.29 66.71 44.08 50.29 55.55 64.03
kW 24.63 24.63 24.78 25.68 24.27 24.28 24.61 25.53 23.76 23.85 24.35 25.26
11,400
TC 225.3 225.5 232.2 264.3 212.6 212.9 225.8 257.7 194.8 198.5 215.8 248.3
SHC 225.3 225.5 207.4 126.2 212.6 212.9 184.2 116.5 194.8 189.3 158.5 106.3
LDB 59.35 59.43 61.19 68.58 55.64 55.74 59.12 66.83 50.24 51.24 56.05 63.99
LWB 48.34 54.24 59.86 68.22 46.63 52.71 58.17 66.59 44.03 50.16 55.44 63.88
kW 23.05 23.05 23.19 23.86 22.79 22.79 23.05 23.73 22.41 22.48 22.85 23.53
12,700
TC 226.4 226.7 233.1 265.6 213.6 213.9 226.5 259.6 195.6 199.0 217.0 249.9
SHC 226.4 226.7 207.8 126.7 213.6 213.9 184.5 117.2 195.6 189.6 159.1 106.9
LDB 59.24 59.33 61.15 68.54 55.52 55.62 59.08 66.75 50.11 51.19 55.97 63.90
LWB 48.30 54.20 59.83 68.18 46.57 52.66 58.14 66.52 43.97 50.13 55.37 63.80
kW 22.59 22.60 22.72 23.33 22.36 22.36 22.60 23.22 22.01 22.08 22.42 23.04
BF — Bypass Factor EWB — Entering Wet Bulb (F) SHC — Sensible Capacity (1000 Btu/hr)
ECT — Entering Condenser Temperature (F) LDB — Leaving Dry Bulb (F) TC — Total Capacity (1000 Btu/hr)
EDB — Entering Dry Bulb (F) LWB — Leaving Wet Bulb (F) kW — Compressor Motor Power Input (kilowatts)
