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