Trane 7½ - 20 Tons Manual page 19

Performance Data
20 Tons Gross Cooling Capacities and Capacity Curves
Table 10. Gross Cooling Capacities (MBh) 20 Tons TWA240B Heat Pump Only
Outdoor
Temp (°F)
Head press PSIG
65 Cap. Btuh/1000
Unit kW
Head press PSIG
75 Cap. Btuh/1000
Unit kW
Head press PSIG
85 Cap. Btuh/1000
Unit kW
Head press PSIG
95 Cap. Btuh/1000
Unit kW
Head press PSIG
105 Cap. Btuh/1000
Unit kW
Head press PSIG
115 Cap. Btuh/1000
Unit kW
Notes:
1. Performance data calculated at 15°F subcooling and 20°F superheat and does not include capacity loss due to refrigerant lines.
Figure 11. Capacity Curves 20 Tons TWA240B Heat Pump Only
SSP-PRC001-EN
Suction Temperature (°F)
30 35
183 190 196
217.4 237.4 258.4
16.09 16.51 16.96
209 216 223
206.8 226 246.3
17.58 18.05 18.56
238 245 253
196 214.4 233.9
19.35 19.88 20.44
269 277 285
185 202.6 221.3
21.39 21.97 22.57
304 312 320
173.8 190.6 208.4
23.68 24.31 24.95
341 349 358
162.4 178.5 195.4
26.23 26.89 27.56
40 45 50
203 211
280.5 303.5
17.44 17.96
231 239
267.6 290
19.11 19.68
261 270
254.5 276
21.03 21.65
294 303
240.9 261.4
23.2 23.83
329 339
227.1 246.5
25.6 26.24
368 378
213 231.2
28.22 28.86
55
219
327.5
18.5
248
313.3
20.28
279
298.3
22.27
313
282.6
24.47
349
266.5
26.87
388
249.9
29.46
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