Trane 7½ - 20 Tons Manual page 16

Table 7. Gross Cooling Capacities (MBh) 7½ Tons TWA090A 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 8. Capacity Curves 7½ Tons TWA090A Heat Pump Only
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7½ Tons Gross Cooling Capacities and Capacity Curves
Suction Temperature (°F)
30 35 40
168 173 179
81 89 97.2
5.56 5.69 5.83
194 199 205
77.8 85.3 93.1
6.09 6.23 6.38
221 227 234
74.1 81.3 88.7
6.71 6.87 7.03
252 258 265
70.3 77.1 84.1
7.43 7.6 7.77
285 292 299
66.1 72.6 79.3
8.23 8.41 8.6
321 328 336
61.8 67.9 74.3
9.12 9.32 9.51
Performance Data
45 50
185 191 197
105.8 114.5 123.4
5.97 6.13 6.28
211 217 224
101.1 109.4 117.8
6.54 6.7 6.87
240 247 254
96.3 104.2 112.3
7.2 7.38 7.56
272 279 286
91.4 98.9 106.7
7.95 8.14 8.33
306 314 322
86.3 93.5 101.1
8.79 8.98 9.18
343 351 360
81 88.1 95.5
9.71 9.91 10.12
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