Page 13
TABLE 7
XP13 Normal Operating Pressures
Model
−018
−024
−024−2
−030
−036
−037
−042
−048
−060
Values below are typical pressures; indoor unit match up, indoor air quality equipment, and indoor load will cause the pressures to vary.
Temp ºF (ºC)*
Liquid Line Pressure / Vapor Line Pressure
Cooling Operation
65 (18)
228 / 140
232 / 139
240 / 139
245 / 135
251 / 134
237 / 126
239 / 135
244 / 139
248 / 129
75 (24)
265 / 142
268 / 142
277 / 142
284 / 137
292 / 138
276 / 135
277 / 136
283 / 141
289 / 131
85 (29)
311 / 144
317 / 144
319 / 142
328 / 140
339 / 140
320 / 139
321 / 139
318 / 143
336 / 132
95 (35)
350 / 147
366 / 146
362 / 143
377 / 144
392 / 143
370 / 143
379 / 142
369 / 145
385 / 133
105 (41)
402 / 149
412 / 148
419 / 146
429 / 145
443 / 145
423 / 146
423 / 144
420 / 148
440 / 136
115 (45)
458 / 152
464 / 152
474 / 153
486 / 147
508 / 149
486 / 148
484 / 147
484 / 150
500 / 140
Heating Operation
20 (−7)
278 / 67
267 / 55
285 / 61
278 / 55
285 / 57
316 / 57
309 / 60
277 / 59
305 / 59
30 (−1)
294 / 81
283 / 72
300 / 75
294 / 72
295 / 77
331 / 73
325 / 74
291 / 73
317 / 72
40 (4.5)
310 / 96
299 / 89
312 / 92
307 / 88
304 / 96
342 / 90
336 / 89
294 / 92
328 / 85
50 (10)
328 / 116
315 / 109
329 / 110
324 / 107
331 / 106
355 / 109
355 / 107
323 / 106
348 / 105
60 (16)
350 / 135
331 / 130
342 / 125
341 / 126
361 / 112
376 / 118
376 / 118
350 / 124
370 / 127
*Temperature of the air entering the outdoor coil.
V − SERVICE AND RECOVERY
WARNING
Polyol ester (POE) oils used with R−410A refriger-
ant absorb moisture very quickly. It is very impor-
tant that the refrigerant system be kept closed as
much as possible. DO NOT remove line set caps or
service valve stub caps until you are ready to make
connections.
IMPORTANT
Use recovery machine rated for R410 refrigerant.
If the XP13 system must be opened for any kind of service,
such as compressor or drier replacement, you must take
extra precautions to prevent moisture from entering the
system. The following steps will help to minimize the
amount of moisture that enters the system during recovery
of R−410A.
1 − Use a regulator−equipped nitrogen cylinder to break
the system vacuum. Do not exceed 5 psi. The dry nitro-
gen will fill the system, and will help purge any mois-
ture.
2 − Remove the faulty component and quickly seal the sys-
tem (using tape or some other means) to prevent addi-
tional moisture from entering the system.
3 − Do not remove the tape until you are ready to install
new component. Quickly install the replacement com-
ponent.
4 − Evacuate the system to remove any moisture and other
non−condensables.
The XP13 system MUST be checked for moisture any
time the sealed system is opened.
Any moisture not absorbed by the polyol ester oil can be re-
moved by triple evacuation. Moisture that has been ab-
sorbed by the compressor oil can be removed by replacing
the drier.
IMPORTANT
Evacuation of system only will not remove mois-
ture from oil. Drier must be replaced to eliminate
moisture from POE oil.
