30
Table 30-1 Gross Cooling Capacities (MBH) 20 Ton Three Phase YC
✱✱
✱✱
✱240B3, B4, BW
Ambient Temperature
85 95 105 115
Enter.
Dry Entering Wet Bulb
CFM Bulb 61 67 73 61 67 73 61 67 73 61 67 73
Airflow (F) MBH SHC MBH SHC MBH SHC MBH SHC MBH SHC MBH SHC MBH SHC MBH SHC MBH SHC MBH SHC MBH SHC MBH SHC
75 228.4 184.9 251.1 137.8 265.2 91.7 217.0 180.4 242.3 133.2 260.3 88.5 203.2 173.7 230.5 127.0 253.3 84.7 187.1 166.6 215.7 120.8 244.2 81.4
80 228.4 221.0 251.1 174.7 265.2 130.4 217.0 213.3 242.3 171.2 260.3 128.0 203.2 202.3 230.5 167.1 253.3 124.8 190.1 190.1 215.7 162.7 244.2 122.1
7200
85 229.9 229.9 251.1 212.0 265.2 174.2 224.5 224.5 242.3 209.5 260.3 172.5 216.6 216.6 230.5 206.9 253.3 169.1 204.1 204.1 215.7 203.7 244.2 166.9
90 238.6 238.6 251.1 244.9 265.2 200.7 235.9 235.9 242.3 239.0 260.3 199.8 220.5 220.5 230.5 229.8 253.3 196.9 218.6 218.6 217.3 217.3 244.2 195.3
75 231.9 193.2 254.9 144.0 269.3 95.9 220.3 188.5 246.0 139.2 264.2 92.5 206.3 181.5 234.0 132.7 257.1 88.5 189.9 174.1 218.9 126.2 247.9 85.1
80 231.9 231.0 254.9 182.5 269.3 136.2 222.9 222.9 246.0 178.8 264.2 133.7 211.4 211.4 234.0 174.6 257.1 130.4 198.7 198.7 218.9 170.0 247.9 127.6
8000
85 240.2 240.2 254.9 221.5 269.3 182.0 234.6 234.6 246.0 218.9 264.2 180.2 226.3 226.3 234.0 216.2 257.1 176.7 213.3 213.3 218.9 212.9 247.9 174.4
90 249.3 249.3 255.9 255.9 269.3 209.8 246.5 246.5 249.7 249.7 264.2 208.8 230.4 230.4 240.1 240.1 257.1 205.7 228.5 228.5 227.0 227.0 247.9 204.1
75 235.1 199.9 258.5 149.1 273.0 99.2 223.4 195.1 249.4 144.1 267.9 95.7 209.2 187.9 237.3 137.3 260.7 91.6 192.6 180.2 222.0 130.6 251.4 88.0
80 239.0 239.0 258.5 188.9 273.0 141.0 230.7 230.7 249.4 185.1 267.9 138.4 218.8 218.8 237.3 180.7 260.7 134.9 205.6 205.6 222.0 176.0 251.4 132.1
8800
85 248.6 248.6 258.5 229.3 273.0 188.4 242.8 242.8 249.4 226.6 267.9 186.5 234.2 234.2 237.3 223.8 260.7 182.8 220.7 220.7 222.0 220.3 251.4 180.5
90 258.0 258.0 264.9 264.9 273.0 217.1 255.1 255.1 258.4 258.4 267.9 216.1 238.4 238.4 248.5 248.5 260.7 212.9 236.5 236.5 235.0 235.0 251.4 211.2
75 238.6 209.8 262.3 156.4 277.1 104.1 226.7 204.8 253.1 151.2 271.9 100.4 212.3 197.1 240.8 144.1 264.6 96.1 195.4 189.0 225.3 137.1 255.1 92.4
80 250.8 250.8 262.3 198.2 277.1 148.0 242.1 242.1 253.1 194.2 271.9 145.2 229.6 229.6 240.8 189.6 264.6 141.6 215.7 215.7 225.3 184.6 255.1 138.6
9600
85 260.9 260.9 262.3 240.6 277.1 197.7 254.8 254.8 253.1 237.8 271.9 195.7 245.8 245.8 240.8 234.8 264.6 191.8 231.6 231.6 231.2 231.2 255.1 189.4
90 270.7 270.7 277.9 277.9 277.1 227.8 267.7 267.7 271.2 271.2 271.9 226.7 250.2 250.2 260.7 260.7 264.6 223.4 248.1 248.1 246.6 246.6 255.1 221.7
NOTES:
1. All capacities shown are gross and have not considered indoor fan heat. To obtain net cooling subtract indoor fan heat.
2. MBH = Total Gross Capacity
3. SHC = Sensible Heat Capacity
Performance 20
,,
,,
, 25 Ton
Data
Standard Efficiency
11000
10500
Table 30-2 Gross Cooling Capacities (MBH) 25 Ton Three Phase YC
✱✱
✱✱
✱300B3, B4, BW
Ambient Temperature
85 95 105 115
Enter.
Dry Entering Wet Bulb
CFM Bulb 61 67 73 61 67 73 61 67 73 61 67 73
Airflow (F) MBH SHC MBH SHC MBH SHC MBH SHC MBH SHC MBH SHC MBH SHC MBH SHC MBH SHC MBH SHC MBH SHC MBH SHC
75 272.0 226.0 299.0 186.0 318.0 117.0 254.0 216.0 285.0 179.0 307.0 110.0 234.0 206.0 267.0 170.0 294.0 103.0 214.0 195.0 246.0 161.0 277.0 95.9
9000 80 275.0 270.0 300.0 214.0 319.0 158.0 257.0 257.0 286.0 208.0 309.0 153.0 241.0 241.0 268.0 199.0 295.0 145.0 224.0 224.0 247.0 189.0 277.0 137.0
85 288.0 288.0 301.0 255.0 322.0 194.0 274.0 274.0 287.0 250.0 310.0 191.0 258.0 258.0 269.0 242.0 296.0 186.0 241.0 241.0 248.0 231.0 278.0 179.0
90 301.0 301.0 304.0 295.0 324.0 230.0 289.0 289.0 289.0 289.0 312.0 229.0 275.0 275.0 275.0 275.0 297.0 226.0 259.0 259.0 259.0 259.0 279.0 220.0
75 277.0 238.0 303.0 196.0 320.0 119.0 259.0 228.0 289.0 189.0 310.0 113.0 239.0 218.0 272.0 180.0 296.0 106.0 218.0 207.0 250.0 171.0 280.0 96.8
10000 80 281.0 281.0 304.0 222.0 322.0 161.0 266.0 266.0 290.0 217.0 311.0 157.0 249.0 249.0 272.0 209.0 298.0 151.0 231.0 231.0 251.0 199.0 280.0 143.0
85 295.0 295.0 306.0 266.0 325.0 199.0 283.0 283.0 291.0 263.0 314.0 197.0 267.0 267.0 274.0 256.0 299.0 193.0 250.0 250.0 254.0 246.0 281.0 188.0
90 308.0 308.0 310.0 309.0 328.0 238.0 297.0 297.0 297.0 297.0 316.0 238.0 283.0 283.0 283.0 283.0 301.0 236.0 267.0 267.0 267.0 267.0 283.0 232.0
75 279.0 244.0 304.0 201.0 321.0 120.0 261.0 234.0 290.0 194.0 311.0 113.0 241.0 224.0 273.0 185.0 297.0 107.0 221.0 213.0 252.0 176.0 281.0 99.4
80 284.0 284.0 306.0 226.0 323.0 163.0 270.0 270.0 292.0 222.0 312.0 159.0 253.0 253.0 274.0 214.0 299.0 153.0 235.0 235.0 253.0 204.0 282.0 146.0
85 298.0 298.0 308.0 271.0 326.0 201.0 286.0 286.0 293.0 269.0 315.0 200.0 271.0 271.0 276.0 263.0 301.0 197.0 254.0 254.0 257.0 254.0 283.0 191.0
90 311.0 311.0 311.0 311.0 329.0 241.0 300.0 300.0 300.0 300.0 317.0 242.0 287.0 287.0 286.0 286.0 302.0 241.0 271.0 271.0 271.0 271.0 284.0 237.0
75 281.0 249.0 305.0 205.0 322.0 121.0 263.0 240.0 292.0 198.0 312.0 114.0 243.0 229.0 275.0 190.0 299.0 108.0 223.0 219.0 254.0 181.0 281.0 104.0
80 287.0 287.0 307.0 230.0 324.0 164.0 273.0 273.0 293.0 226.0 314.0 160.0 256.0 256.0 276.0 219.0 300.0 155.0 238.0 238.0 255.0 210.0 283.0 148.0
85 301.0 301.0 309.0 276.0 327.0 204.0 289.0 289.0 295.0 275.0 316.0 203.0 275.0 275.0 278.0 269.0 302.0 200.0 258.0 258.0 257.0 257.0 284.0 195.0
90 314.0 314.0 314.0 314.0 330.0 244.0 303.0 303.0 303.0 303.0 319.0 246.0 290.0 290.0 289.0 289.0 304.0 245.0 274.0 274.0 274.0 274.0 286.0 243.0
NOTES:
1. All capacities shown are gross and have not considered indoor fan heat. To obtain net cooling subtract indoor fan heat.
2. MBH = Total Gross Capacity
3. SHC = Sensible Heat Capacity
✲Indicates both downflow and horizontal units.
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