Fan Performance 48Tj004 — Horizontal Discharge Units, High-Static Motor - Carrier 48TJD Installation, Start-Up And Service Instructions Manual

Single-package rooftop heating/cooling units
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Table 21 — Fan Performance 48TJ004 — Horizontal Discharge Units, High-Static Motor
48TJ004 (3 TONS) — HIGH-STATIC MOTOR (BELT DRIVE)*
Airflow
0.2
(Cfm)
Rpm
Bhp
900
584
0.08
1000
627
0.13
1100
670
0.16
1200
710
0.23
1300
752
0.27
1400
776
0.31
1500
816
0.38
48TJ004 (3 TONS) — HIGH-STATIC MOTOR (BELT DRIVE)* (cont)
Airflow
1.2
(Cfm)
Rpm
Bhp
900
1120
0.54
1000
1185
0.60
1100
1225
0.65
1200
1266
0.72
1300
1306
0.79
1400
1347
0.87
1500
1385
0.96
LEGEND
Bhp
— Brake Horsepower Input to Fan
FIOP
— Factory-Installed Option
Watts — Input Watts to Motor
*Motor drive range is 1075 to 1455 rpm. All other rpms require a field-
supplied drive.
NOTES:
1. Boldface indicates field-supplied drive is required.
2. Values include losses for filters, unit casing, and wet coils. See
Table 7 for accessory/FIOP static pressure information.
External Static Pressure (in. wg)
0.4
Watts
Rpm
Bhp
Watts
99
734
0.22
219
149
800
0.26
259
189
812
0.29
288
229
840
0.32
318
269
868
0.37
368
308
891
0.42
418
378
924
0.48
477
External Static Pressure (in. wg)
1.4
Watts
Rpm
Bhp
Watts
537
1155
0.59
589
597
1222
0.66
655
647
1263
0.71
709
716
1306
0.79
786
786
1347
0.87
862
865
1389
0.95
950
955
1428
1.05
1048
0.6
Rpm
Bhp
Watts
Rpm
875
0.27
269
953
895
0.31
308
977
914
0.35
348
1005
938
0.40
398
1038
963
0.45
448
1061
983
0.51
507
1071
1014
0.58
577
1097
1.6
Rpm
Bhp
Watts
Rpm
1186
0.64
639
1215
1255
0.71
709
1285
1298
0.77
769
1328
1341
0.86
851
1373
1383
0.94
934
1416
1427
1.03
1029
1461
1467
1.14
1135
1502
3. Maximum continuous bhp is 2.4 and maximum continuous watts
are 2120. Extensive motor and electrical testing on these units
ensures that the full range of the motor can be utilized with confi-
dence. Using your fan motors up to the wattage ratings shown will
not result in nuisance tripping or premature motor failure. Unit war-
ranty will not be affected. See Table 6 — Motor Data for additional
information.
4. Use of a field-supplied motor may affect wire sizing. Contact your
Carrier representative for details.
5. Interpolation is permissible. Do not extrapolate.
30
0.8
1.0
Bhp
Watts
Rpm
Bhp
0.36
348
1028
0.42
0.39
388
1064
0.48
0.43
428
1000
0.52
0.50
497
1136
0.59
0.56
557
1172
0.65
0.60
597
1208
0.70
0.68
676
1245
0.74
1.8
2.0
Bhp
Watts
Rpm
Bhp
0.69
685
1240
0.73
0.77
761
1312
0.82
0.83
825
1357
0.88
0.92
914
1402
0.98
1.01
1003
1446
1.07
1.11
1104
1492
1.18
1.22
1218
1534
1.30
Watts
438
477
527
577
647
706
776
Watts
730
811
879
973
1068
1176
1298

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