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  Trane Company (The)   20 - 80 Ton Self Contained Air Conditioners  

20-80 Ton Self-Contained Air Conditioners - Page 30

   

20 - 80 Ton Self Contained Air Conditioners

SWUD 20 Refrigeration Capacity

TABLE 35-1-Gross Cooling Capacity

8800 CFM

ENT WATER TEMP. F
  65 75 85 95
ENT DB ENT WB GPM TOT MBH SEN MBH LWT TOT MBH SEN MBH LW7 TOT MBH SEN MBH LWT TOT MBH SEN MBH LWT
70 62 41 250 154 79.3 242 150 89.2 232 146 99.1 222 142 109.0
50 252 155 76.8 243 151 86.7 234 147 96.6 224 142 106.5
60 253 156 74.8 244 152 84.8 235 148 94.7 226 143 104.6
70 254 156 73.4 245 152 83.4 236 148 93.3 227 144 103.2
67 41 272 119 80.4 263 115 90.3 253 111 100.1 242 106 110.0
50 274 120 77.7 265 116 87.6 255 112 97.5 244 107 107.4
60 275 120 75.6 266 116 85.5 256 112 95.4 246 108 105.3
70 276 121 74.0 267 117 84.0 257 113 93.9 247 108 103.8
75 62 41 250 188 79.3 241 184 89.2 232 179 99.1 222 175 109.0
50 251 188 76.8 243 184 86.7 234 180 96.6 224 176 106.5
60 253 189 74.8 244 185 84.7 235 181 94.7 225 176 104.6
70 253 189 73.4 245 185 83.3 236 181 93.3 226 177 103.2
67 41 272 152 80.4 262 148 90.3 252 144 100.1 242 140 110.0
50 274 153 77.7 264 149 87.6 255 145 97.5 244 140 107.3
60 275 154 75.6 266 150 85.5 256 146 95.4 246 141 105.3
70 276 154 74.1 267 150 84.0 257 146 93.9 247 142 103.8
72 41 295 116 81.6 285 112 91.4 274 108 101.2 263 104 111.1
50 251 117 78.7 287 113 88.5 276 109 98.4 265 105 108.2
60 252 118 76.4 289 114 86.3 278 110 96.2 267 106 106.0
70 253 118 74.8 290 114 84.7 280 110 94.6 268 106 104.5
80 62 41 250 221 79.3 241 217 89.2 232 212 99.1 222 207 109.0
50 251 222 76.8 243 218 86.7 234 213 96.6 224 208 106.5
60 252 222 74.8 244 218 84.7 235 214 94.7 226 209 104.6
70 253 223 73.4 245 219 83.3 236 214 93.3 226 210 103.2
67 41 272 185 80.4 262 181 90.3 252 177 100.1 242 173 110.0
50 273 186 77.7 264 182 87.6 254 178 97.4 244 173 107.3
60 275 187 75.6 266 183 85.5 256 179 95.4 245 174 105.3
70 276 187 74.1 267 183 84.0 257 179 93.9 247 175 103.8
72 41 295 149 81.6 285 145 91.4 274 141 101.2 262 137 111.1
50 297 150 78.7 287 146 88.5 276 142 98.4 265 138 108.2
60 299 151 76.4 289 147 86.3 278 143 96.1 267 139 106.0
70 300 151 74.8 290 147 84.7 279 143 94.6 268 139 104.4
85 62 41 252 250 79.4 245 244 89.4 237 237 99.3 229 229 109.3
50 254 251 76.9 246 245 86.8 238 238 96.8 230 230 106.8
60 255 252 74.9 247 246 84.8 239 239 94.8 231 231 104.8
70 255 252 73.5 248 247 83.4 240 240 93.4 232 232 103.4
67 41 271 218 80.4 262 214 90.3 252 210 100.1 241 205 110.0
50 273 219 77.7 264 215 87.6 254 211 97.4 244 206 107.3
60 275 220 75.6 265 216 85.5 256 211 95.4 245 207 105.3
70 275 220 74.1 266 216 84.0 257 212 93.9 246 207 103.8
72 41 294 182 81.6 284 178 91.4 274 174 101.2 262 170 111.0
50 297 183 78.7 287 179 88.5 276 175 98.4 265 171 108.2
60 298 184 76.4 288 180 86.3 278 176 96.1 267 171 106.0
70 299 184 74.8 290 180 84.7 279 176 94.6 268 172 104.4

NOTES:

1. Capacities shown are gross and do not account for fan motor heat. To determine net capacities, fan motor heat must be subtracted from the gross MBh. To calculate supply fan motor heat use the following equation:

Fan motor heat (MBh) = 2.8 x fan motor brake horsepower.

2. To determine capacities at other than cfm shown, refer to the capacity correction factors in table.

TABLE 31-2-Capacity Correction Factors

  Cfm Compared To Rated Quantity Cooling Capacity Multiplier Sensible Capacity Multiplier
 

DX Cooling

 - 20% 0.970 0.910
-10% 0.985 0.955
Std 1.000 1.000
+3% 1.005 1.014
+6% 1.009 1.027
Waterside Economizer - 20% 0.920 0.870
-10% 0.960 0.930
Std 1.000 1.000
+3% 1.012 1.018
+6% 1.024 1.036



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