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XC17
Operating and Temperature Pressures
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.
IMPORTANT
Use this table to perform maintenance checks; it is not a procedure for charging the
system. Minor variations in these pressures may be due to differences in installations.
Significant deviations could mean that the system is not properly charged or that a
problem exists with some component in the system.
Table 4. Normal Operating Pressures (Liquid +10 and Suction +5 psig)*
(XC17−XXX−230−01 and −02)
Model −024 −030 −036 −042 −048 −060
F (C)** Liquid Suction Liquid Suction Liquid Suction Liquid Suction Liquid Suction Liquid Suction
65 (18.3) 234 139 236 134 226 134 232 137 232 132 236 131
70 (21.1) 249 140 251 135 245 135 249 139 249 133 254 132
75 (23.9) 268 141 271 138 266 137 270 140 268 134 273 133
80 (26.7) 289 142 291 139 287 138 291 141 288 135 294 135
85 (29.4) 310 142 312 140 310 139 314 142 311 136 317 136
90 (32.2) 334 144 335 142 333 140 338 143 333 137 340 137
95 (35.0) 358 145 358 142 358 141 363 144 357 138 364 139
100 (37.8) 383 146 383 143 383 143 389 145 380 139 389 140
105 (40.6) 408 147 409 144 410 144 419 147 406 140 416 142
110 (43.3) 436 148 436 145 437 145 447 148 433 142 444 143
115 (46.1) 465 150 467 147 464 146 480 149 462 143 475 145
(XC17−XXX−230−03)
65 (18.3) 234 139 236 134 226 134 232 137 232 132 237 136
70 (21.1) 249 140 251 135 245 135 249 139 249 133 255 137
75 (23.9) 268 141 271 138 266 137 270 140 268 134 275 138
80 (26.7) 289 142 291 139 287 138 291 141 288 135 296 139
85 (29.4) 310 142 312 140 310 139 314 142 311 136 320 141
90 (32.2) 334 144 335 142 333 140 338 143 333 137 343 142
95 (35.0) 358 145 358 142 358 141 363 144 357 138 367 143
100 (37.8) 383 146 383 143 383 143 389 145 380 139 391 144
105 (40.6) 408 147 409 144 410 144 419 147 406 140 418 146
110 (43.3) 436 148 436 145 437 145 447 148 433 142 447 147
115 (46.1) 465 150 467 147 464 146 480 149 462 143 478 149
* Typical pressures only, expressed in psig (liquid +/− 10 and vapor+/− 5 psig); indoor match up, indoor air quality, and indoor load will cause the
pressures to vary. These operating pressures are also listed on the unit charging sticker (580005−01) located on the access panel.
** Temperature of air entering outdoor coil.
Table 5. HFC−410A Temperature (°F) − Pressure (Psig)
°F °C Psig °F °C Psig
−40 −40.0 11.6 60 15.6 170
−35 −37.2 14.9 65 18.3 185
−30 −34.4 18.5 70 21.1 201
−25 −31.7 22.5 75 23.9 217
−20 −28.9 26.9 80 26.7 235
−15 −26.1 31.7 85 29.4 254
−10 −23.3 36.8 90 32.2 274
−5 −20.6 42.5 95 35.0 295
0 −17.8 48.6 100 37.8 317
5 −15.0 55.2 105 40.6 340
10 −12.2 62.3 110 43.3 365
15 −9.4 70.0 115 46.1 391
20 −6.7 78.3 120 48.9 418
25 −3.9 87.3
125 51.7 446
30 −1.1 96.8 130 54.4 476
35 1.7 107 135 57.2 507
40 4.4 118 140 60.0 539
45 7.2 130
145 62.8 573
50 10.0 142
150 65.6 608
55 12.8 155
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