Lennox HPXA12 SERIES, Unit Information

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Page 18
TABLE 7
NORMAL OPERATING PRESSURES
Cooling Operation
Outdoor Coil
E t i Ai
HPXA12−18
HPXA12−24 HPXA12−30 HPXA12−36 HPXA12−42 HPXA12−48 HPXA12−60
Entering Air
Temp. °F (°C)
Liquid Vapor
Liquid Suction Liquid Vapor Liquid Vapor Liquid Vapor Liquid Vapor Liquid Vapor
65 (18.3)
223 147
254 130 244 136 262 135 260 133 240 126 250 123
75 (23.9)
270 149
290 134 282 139 304 138 300 135 280 130 300 132
85 (29.4)
312 150
335 137 325 141 349 141 345 137 320 134 345 137
95 (35.0)
360 152
382 140 375 143 399 143 397 139 360 136 378 140
105 (40.6)
406 154
433 143 426 145 454 146 452 142 415 137 430 142
115 (46.1)
463 155
490 146 485 147 514 149 510 145 470 139 497 145
Heating Operation
Outdoor Coil
E t i Ai
HPXA12−18
HPXA12−24 HPXA12−30 HPXA12−36 HPXA12−42 HPXA12−48 HPXA12−60
Entering Air
Temp. °F (°C)
Liquid Vapor
Liquid Vapor Liquid Vapor Liquid Vapor Liquid Vapor Liquid Vapor Liquid Vapor
20 (−6.6)
265 63
295 59 340 60 278 59 288 60 315 60 282 57
30 (−1.1)
280 78
315 72 350 75 290 72 297 70 325 74 300 70
40 (4.4)
294 96
335 87 362 90 305 89 310 85 340 90 310 82
50 (10.0)
310 112
350 103 374 110 317 105 325 105 360 106 325 92
60 (15.5)
320 133
375 120 390 132 333 128 344 127 380 128 335 100
TABLE 8
R410A Temperature/Pressure Chart
Temperature
°F
Pressure
Psig
Temperature
°F
Pressure
Psig
Temperature
°F
Pressure
Psig
Temperature
°F
Pressure
Psig
32 100.8 63 178.5 94 290.8 125 445.9
33 102.9 64 181.6 95 295.1 126 451.8
34 105.0 65 184.3 96 299.4 127 457.6
35 107.1 66 187.7 97 303.8 128 463.5
36 109.2 67 190.9 98 308.2 129 469.5
37 111.4 68 194.1 99 312.7 130 475.6
38 113.6 69 197.3 100 317.2 131 481.6
39 115.8 70 200.6 101 321.8 132 487.8
40 118.0 71 203.9 102 326.4 133 494.0
41 120.3 72 207.2 103 331.0 134 500.2
42 122.6 73 210.6 104 335.7 135 506.5
43 125.0 74 214.0 105 340.5 136 512.9
44 127.3 75 217.4 106 345.3 137 519.3
45 129.7 76 220.9 107 350.1 138 525.8
46 132.2 77 224.4 108 355.0 139 532.4
47 134.6 78 228.0 109 360.0 140 539.0
48 137.1 79 231.6 110 365.0 141 545.6
49 139.6 80 235.3 111 370.0 142 552.3
50 142.2 81 239.0 112 375.1 143 559.1
51 144.8 82 242.7 113 380.2 144 565.9
52 147.4 83 246.5 114 385.4 145 572.8
53 150.1 84 250.3 115 390.7 146 579.8
54 152.8 85 254.1 116 396.0 147 586.8
55 155.5 86 258.0 117 401.3 148 593.8
56 158.2 87 262.0 118 406.7 149 601.0
57 161.0 88 266.0 119 412.2 150 608.1
58 163.9 89 270.0 120 417.7 151 615.4
59 166.7 90 274.1 121 423.2 152 622.7
60 169.6 91 278.2 122 428.8 153 630.1
61 172.6 92 282.3 123 434.5 154 637.5
62 195.5 93 286.5 124 440.2 155 645.0