Lennox T?Class TSA*S4 Units Installation Instructions Manual page 24

IMPORTANT
Table 5. HFC−410A Normal Operating Pressures
TSA*S4
F(5C)* Liquid / Suction
65 (18)
70 (21)
75 (24)
80 (27)
85 (29)
90 (32)
95 (35)
100 (38)
105 (41)
110 (43)
115 (45)
*Temperature of the air entering the outside coil.
Table 6. HFC−410A Normal Operating Pressures
TSA*S4
5F(5C)*
65 (18)
70 (21)
75 (24)
80 (27)
85 (29)
90 (32)
95 (35)
100 (38)
105 (41)
110 (43)
115 (45)
*Temperature of the air entering the outside coil.
°F
−40
−35
−30
−25
−20
−15
−10
−5
0
5
10
15
20
25
30
35
40
45
50
55
506663−01 11/10
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.
TSA*S4 50Hz International (1−Phase)
−024 −030
Liquid / Suction
260 / 137 255 / 132
280 / 138 274 / 134
301 / 139 295 / 135
323 / 141 317 / 136
346 / 142 339 / 137
370 / 144 363 / 139
395 / 145 387 / 140
421 / 147 413 / 142
449 / 149 439 / 143
478 / 151 468 / 145
507 / 152 497 / 147
TSA*S4 50Hz International (3−Phase)
−036
Liquid / Suction
269 / 135
290 / 136
311 / 137
334 / 138
357 / 139
382 / 141
407 / 142
433 / 143
460 / 145
490 / 146
520 / 148
Table 7. HFC−410A Temperature (°F) − Pressure (Psig)
°C Psig
−40.0 11.6
−37.2 14.9
−34.4 18.5
−31.7 22.5
−28.9 26.9
−26.1 31.7
−23.3 36.8
−20.6 42.5
−17.8 48.6
−15.0 55.2
−12.2 62.3
−9.4 70.0
−6.7 78.3
−3.9 87.3
−1.1 96.8
1.7 107
4.4 118
7.2 130
10.0 142
12.8 155
Liquid +10 and Suction +5 Psig (1−Phase)
−036
Liquid / Suction
246 / 133
265 / 134
286 / 136
307 / 137
330 / 138
354 / 140
378 / 141
404 / 143
430 / 145
458 / 146
487 / 148
Liquid +10 and Suction +5 Psig (3−Phase)
−048
Liquid / Suction
247 / 132
269 / 134
290 / 136
312 / 138
335 / 139
360 / 140
385 / 142
412 / 144
439 / 145
468 / 147
498 / 149
°F
60
65
70
75
80
85
90
95
100
105
110
115
120
125
130
135
140
145
150
Page 24
−048
Liquid / Suction Liquid / Suction
248 / 133 259 / 143
269 / 134 279 / 144
290 / 136 299 / 146
313 / 137 320 / 147
335 / 138 342 / 148
360 / 140 364 / 150
386 / 142 387 / 151
412 / 143 411 / 153
440 / 145 437 / 154
468 / 147 464 / 156
498 / 149 492 / 157
−060
Liquid / Suction
269 / 136
289 / 137
310 / 139
332 / 140
355 / 142
377 / 143
400 / 144
423 / 146
449 / 148
476 / 149
504 / 151
°C
15.6
18.3
21.1
23.9
26.7
29.4
32.2
35.0
37.8
40.6
43.3
46.1
48.9
51.7
54.4
57.2
60.0
62.8
65.6
−060
Psig
170
185
201
217
235
254
274
295
317
340
365
391
418
446
476
507
539
573
608