Trane Oxbox AC Series Installation Instructions Manual page 18

Cooling
Mode
165
161
157
153
149
145
141
137
133
129
125
121
117
113
109
105
Cooling
Mode
165
161
157
153
149
145
141
137
133
129
125
121
117
113
109
105
5. Adjust refrigerant level to attain proper gage pressure.
Add refrigerant if the design liquid line pressure is lower than the
chart value.
Connect gages to refrigerant bottle and unit as illustrated (Figure
40).
Purge all hoses.
Open bottle.
Stop adding refrigerant when liquid line pressure matches the
Refrigerant Charging Chart.
Recover refrigerant if the design liquid line pressure is lower than
the chart value.
Figure 40
14SEER R410A HP Charge Chart 4 TON(Cooling mode)
55 60 65 70
Liquid Pressure at Small Service Valve(psig)
255 273
253 271
251 269
231 249 267
229 247 265
227 245 263
206 225 243 261
204 223 241 259
204 222 240 258
202 220 238 256
200 218 236 254
198 216 234 252
196 214 232 250
194 212 230 248
192 210 228 246
190 208 226 244
14SEER R410A HP Charge Chart 5 TON(Cooling mode)
55 60 65 70
Liquid Pressure at Small Service Valve(psig)
249 267
247 265
245 263
225 243 261
223 241 259
221 239 257
201 219 237 255
199 217 235 253
197 215 233 251
195 213 231 249
193 211 229 247
191 209 227 245
189 207 225 243
187 205 223 241
185 203 221 239
183 201 219 237
Outdoor Ambient Temperature(
℉
75 80 85 90
291 310 330 351
289 308 328 349
287 306 326 347
285 304 324 345
283 302 322 343
281 300 320 341
279 298 318 339
277 296 316 337
275 294 314 335
273 292 312 333
271 290 310 331
269 288 308 329
267 286 306 327
265 284 304 325
263 282 302 323
261 280 300 321
Outdoor Ambient Temperature(
℉
75 80 85 90
285 303 323 344
283 301 321 342
281 299 319 340
279 297 317 338
277 295 315 336
275 293 313 334
273 291 311 332
271 289 309 330
269 287 307 328
267 285 305 326
265 283 303 324
263 281 301 322
261 279 299 320
259 277 297 318
257 275 295 316
255 273 293 314
6. Stabilize the system.
Wait 20 minutes for the system condition to stabilize between
adjustments.
When the liquid line pressure match the chart, the system is
properly charged.
Remove gages.
Replace service port caps to prevent leaks. Tighten finger tight plus
an additional 1/6 turn.
Figure 41
7. Record system Information for reference (Table 8).
Record system pressures and temperatures after charging is
complete.
Description
Outdoor model number
Measured Outdoor Ambient
Measured Indoor Ambient
Liquid Gage Pressure
Suction Gage Pressure
Table 8
16
)
95 100 105
371 396 420
369 394 418
367 392 416
365 390 414
363 388 412
361 386 410
359 384 408
357 382 406
355 380 404
353 378 402
351 376 400
349 374 398
347 372 396
345 370 394
343 368 392
341 366 390
)
95 100 105
364 392 415
362 391 413
360 389 411
358 387 409
356 385 407
354 383 405
352 381 403
350 379 401
348 377 399
346 375 397
344 373 395
342 371 393
340 369 391
338 367 389
336 365 387
334 363 385
20 MIN.
110 115
445 469
443 467
441 465
439 463
437 461
435 459
433 457
431 455
429 453
427 451
425 449
423 447
421 445
419 443
417 441
415 439
110 115
441 466
439 464
437 462
435 460
433 458
431 456
429 454
427 452
425 450
423 448
421 446
419 444
417 442
415 440
413 438
411 436
Value
°F
°F
PSIG
PSIG