Carrier 48SX024-060 User Manual
Page 42

Table 12 — Dry-Coil Air Delivery* — Downflow Discharge at 230 and 460 V — Unit 48SS
(Deduct 10% from Cfm and Watts for 208 V Operation)
UNIT
48SS
MOTOR
SPEED
AIR
DELIVERY
EXTERNAL STATIC PRESSURE (in. wg)
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
018
Low
Watts
†
295
251
223
201
176
149
124
†
†
†
Cfm
†
821
817
753
665
536
343
164
†
†
†
High
Watts
401
376
346
322
294
272
250
229
219
†
†
Cfm
1334
1253
1128
996
816
658
461
246
167
†
†
024,
030
Low
Watts
†
285
284
282
278
274
270
261
251
244
230
Cfm
†
798
761
727
682
634
581
525
450
371
304
Med
Watts
†
378
371
368
362
357
343
332
315
301
283
Cfm
†
1011
982
948
906
858
771
703
597
492
387
High
Watts
†
520
511
487
472
451
431
411
385
362
341
Cfm
†
1342
1309
1237
1181
1106
1007
892
745
610
471
036
Low
Watts
†
460
439
423
398
379
349
322
297
270
246
Cfm
†
1191
1136
1081
1005
907
795
687
579
471
349
Med
Watt
†
511
492
470
450
420
392
364
332
308
275
Cfm
†
1316
1244
1178
1104
1005
891
784
657
535
389
High
Watts
†
655
631
603
584
552
522
492
459
433
398
Cfm
†
1541
1458
1367
1292
1178
1053
920
806
662
509
042
Low
Watts
†
637
612
587
560
526
493
455
†
†
†
Cfm
†
1500
1450
1405
1350
1290
1200
1105
†
†
†
High
Watts
†
790
750
700
679
639
608
574
547
†
†
Cfm
†
1750
1675
1604
1509
1421
1323
1221
1094
†
†
048
Low
Watts
†
847
784
746
708
646
609
563
516
†
†
Cfm
†
1995
1901
1822
1730
1580
1477
1319
1178
†
†
High
Watts
†
†
909
852
820
801
751
687
639
†
†
Cfm
†
†
2018
1896
1814
1729
1582
1380
1270
†
†
060
Low
Watts
†
983
950
923
885
845
804
751
697
665
633
Cfm
†
1838
1808
1755
1702
1628
1553
1446
1339
1257
1175
Med
Watts
†
1115
1083
1045
1006
964
921
872
823
783
742
Cfm
†
2067
2023
1957
1891
1807
1723
1612
1501
1392
1282
High
Watts
†
1284
1201
1166
1131
1092
1053
1001
950
907
864
Cfm
†
2167
2108
2038
1968
1882
1796
1676
1555
1437
1318
*Air delivery values are without air filter and are for dry coil. See Table 17
for wet coil pressure drop. Deduct field-supplied air filter pressure drop
and wet coil pressure drop to obtain external static pressure available for
ducting.
†Unit air delivery is outside of operating range.
NOTE: Do not operate the unit at a cooling airflow that is less than
350 cfm for each 12,000 Btuh of rated cooling capacity. Evaporator-coil
icing may occur at airflows below this point. Water blow-off may occur at
airflows above 450 cfm per 12,000 Btuh of rated cooling capacity.
Table 13 — Dry-Coil Air Delivery* — Horizontal Discharge at 230 and 460 V — Unit 48SX
(Deduct 10% from Cfm and Watts for 208 V Operation)
UNIT
48SX
MOTOR
SPEED
AIR
DELIVERY
EXTERNAL STATIC PRESSURE (in. wg)
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
024,
030
Low
Watts
280
275
265
255
250
245
240
†
†
†
†
Cfm
820
810
755
700
660
600
560
†
†
†
†
Med
Watts
365
360
350
345
340
330
320
310
300
†
†
Cfm
1025
1010
975
940
900
850
800
720
630
†
†
High
Watts
†
†
490
480
470
460
445
430
410
390
380
Cfm
†
†
1300
1255
1200
1150
1080
1005
915
790
620
036
Low
Watts
520
495
474
458
445
425
†
†
†
†
†
Cfm
1375
1335
1290
1240
1200
1140
†
†
†
†
†
Med
Watts
575
560
535
510
480
460
440
425
†
†
†
Cfm
1520
1490
1450
1400
1380
1300
1200
1080
†
†
†
High
Watts
†
†
†
†
650
614
575
540
510
480
†
Cfm
†
†
†
†
1560
1500
1380
1280
1170
1060
†
042
Low
Watts
490
480
470
460
450
430
410
390
†
†
†
Cfm
1400
1380
1340
1300
1250
1200
1140
1070
†
†
†
Med
Watts
590
580
560
545
525
505
480
450
420
†
†
Cfm
1600
1560
1540
1470
1430
1360
1300
1220
1120
†
†
High
Watts
†
†
†
†
†
700
670
640
600
560
500
Cfm
†
†
†
†
†
1780
1670
1600
1480
1340
1100
048**
Low
Watts
1050
1000
970
930
870
810
750
680
600
†
†
Cfm
1850
1830
1800
1785
1750
1700
1640
1500
1330
†
†
High
Watts
†
†
†
1050
1000
930
870
810
740
665
†
Cfm
†
†
†
2000
1940
1850
1750
1635
1500
1300
†
*Air delivery values are without air filter and are for dry coil. See Table 17
for wet coil pressure drop. Deduct field-supplied air filter pressure drop
and wet coil pressure drop to obtain external static pressure available for
ducting.
†Unit air delivery is outside of operating range.
**For 460 v units only.
NOTE: Do not operate the unit at a cooling airflow that is less than
350 cfm for each 12,000 Btuh of rated cooling capacity. Evaporator-coil
icing may occur at airflows below this point. Water blow-off may occur at
airflows above 450 cfm per 12,000 Btuh of rated cooling capacity.
42