Install Instructions

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 Pressure at
Large Service Valve(psig)
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 Pressure at
Large Service Valve(psig)
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