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XP21
Operating and Temperature Pressures (All Builds)
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.
Table 8. Normal Operating Pressure − Liquid +10 and Vapor +5 PSIG*
5F (5C)**
XP21−024−230−ALL XP21−036−230−ALL XP21−048−230−ALL XP21−060−230−01 Only
XP21−060−230−02 and
Later
Liq Vap Liq Vap Liq Vap Liq Vap Liq Vap
Low Stage Heating Operation
40 (4) 319 104 307 99 367 92 371 93 322 96
50 (10) 345 122 331 117 385 113 402 111 352 115
60 (16) 380 144 350 137 415 130 428 128 371 132
Low Stage Cooling Operation
65 (18) 224 149 224 145 229 142 235 138 227 139
70 (21) 241 149 241 147 247 142 253 139 244 141
75 (24) 260 150 261 148 266 143 273 140 263 142
80 (27) 281 150 282 149 288 144 294 141 284 143
85 (29) 303 151 303 150 311 145 317 143 305 144
90 (32) 325 152 326 151 334 146 340 144 328 146
95 (35) 348 154 350 152 358 147 364 145 352 147
100 (38) 372 155 374 153 383 149 390 146 376 148
105 (41) 397 156 400 154 410 150 417 147 402 150
110 (43) 425 159 427 155 438 151 445 149 429 151
115 (46) 453 155 456 157 468 152 476 150 458 153
High Stage Heating Operation
20 (−7) 312 67 293 62 326 63 340 59 305 62
30 (−1) 351 82 309 76 353 76 353 68 320 72
40 (4) 364 98 322 90 375 93 373 89 347 90
50 (10) 390 117 341 109 405 110 404 104 366 105
60 (16) 420 140 357 129 437 127 429 121 387 120
High Stage Cooling Operation
65 (18) 231 144 237 140 240 138 247 131 236 134
70 (21) 250 145 254 141 259 139 268 133 252 135
75 (24) 270 146 275 142 279 140 286 134 272 136
80 (27) 291 147 294 143 299 140 308 137 294 137
85 (29) 312 148 315 146 323 142 327 143 316 139
90 (32) 336 149 338 147 346 143 350 144 339 140
95 (35) 360 150 363 148 371 144 374 146 364 141
100 (38) 387 151 389 150 397 145 401 147 389 142
105 (41) 411 152 415 151 423 146 428 148 416 144
110 (43) 438 153 443 152 451 147 458 149 445 145
115 (46) 467 154 473 153 481 149 489 151 475 146
Table 9. 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