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XP13 SERIES
Table 4. Normal Operating Pressures − Liquid +10 and Vapor +5 PSIG*
IMPORTANT
Use table 4 as a general guide when performing maintenance checks. This is not a procedure for charging the
unit (Refer to Charging / Checking Charge section). Minor variations in these pressures may be expected due
to differences in installations. Significant differences could mean that the system is not properly charged or that
a problem exists with some component in the system.
Model −018 −024 −030 −036 −042 −048 −060
ºF (ºC)** Liquid Line Pressure / Vapor Line Pressure
Cooling Operation
65 (18) 228 / 140 232 / 139 245 / 135 251 / 134 239 / 135 244 / 139 248 / 129
75 (24) 265 / 142 268 / 142 284 / 137 292 / 138 277 / 136 283 / 141 289 / 131
85 (29) 311 / 144 317 / 144 328 / 140 339 / 140 321 / 139 318 / 143 336 / 132
95 (35) 350 / 147 366 / 146 377 / 144 392 / 143 379 / 142 369 / 145 385 / 133
105 (41) 402 / 149 412 / 148 429 / 145 443 / 145 423 / 144 420 / 148 440 / 136
115 (45) 458 / 152 464 / 152 486 / 147 508 / 149 484 / 147 484 / 150 500 / 140
Heating Operation
60 (16) 350 / 135 348 / 130 341 / 123 350 / 131 366 / 129 350 / 120 379 / 127
50 (10) 321 / 116 330 / 109 324 / 107 331 / 111 348 / 107 333 / 106 361 / 109
40 (4.5) 301 / 96 315 / 89 307 / 88 304 / 96 336 / 89 294 / 92 341 / 89
30 (−1) 294 / 81 301 / 77 290 / 76 295 / 77 317 / 70 291 / 73 323 / 72
20 (−7) 278 / 64 286 / 64 274 / 62 290 / 62 295 / 60 283 / 59 305 / 59
*These are most−popular−match−up pressures. Indoor match up, indoor air quality, and indoor load cause pressures to vary.
**Temperature of the air entering the outdoor coil.
Table 5. HFC−410A Temperature (°F) − Pressure (Psig)
°F Psig °F Psig °F Psig °F Psig °F Psig °F Psig °F Psig °F Psig
32 100.8 48 137.1 63 178.5 79 231.6 94 290.8 110 365.0
125 445.9
141 545.6
33 102.9 49 139.6 64 181.6 80 235.3 95 295.1 111 370.0 126 451.8 142 552.3
34 105.0 50 142.2 65 184.3 81 239.0 96 299.4 112 375.1 127 457.6 143 559.1
35 107.1 51 144.8 66 187.7 82 242.7 97 303.8 113 380.2 128 463.5 144 565.9
36 109.2 52 147.4 67 190.9 83 246.5 98 308.2 114 385.4 129 469.5 145 572.8
37 111.4 53 150.1 68 194.1 84 250.3 99 312.7 115 390.7 130 475.6 146 579.8
38 113.6 54 152.8 69 197.3 85 254.1 100 317.2 116 396.0 131 481.6 147 586.8
39 115.8 55 155.5 70 200.6 86 258.0 101 321.8 117 401.3 132 487.8 148 593.8
40 118.0 56 158.2 71 203.9 87 262.0 102 326.4 118 406.7 133 494.0 149 601.0
41 120.3 57 161.0 72 207.2 88 266.0 103 331.0 119 412.2 134 500.2 150 608.1
42 122.6 58 163.9 73 210.6 89 270.0 104 335.7 120 417.7 135 506.5 151 615.4
43 125.0 59 166.7 74 214.0 90 274.1 105 340.5 121 423.2 136 512.9 152 622.7
44 127.3 60 169.6 75 217.4 91 278.2 106 345.3 122 428.8 137 519.3 153 630.1
45 129.7 61 172.6 76 220.9 92 282.3 107 350.1 123 434.5 138 525.8 154 637.5
46 132.2 62 175.4 77 224.4 93 286.5 108 355.0 124 440.2 139 532.4 155 645.0
47 134.6 78 228.0 109 360.0 140 539.0
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