Carrier 50PG20-28 Controls, Start-Up, Operation, Service And Troubleshooting Instructions page 16

AIRFLOW
(Cfm)
5000
5500
6000
6500
7000
7500
8000
8500
9000
Rpm
533
571
610
650
691
732
775
817
860
Table 12 -- Fan Performance -- 50PG20 --Vertical Supply/Return Units
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
0.2 0.4 0.6 0.8
Bhp
1.27
1.57
1.92
2.31
275
324
379
4.40
5.06
Rpm
611
643
676
712
748
A
788
824
863
904
Bhp
1.54
1.86
2.21
261
308
357
412
4.74
5.41
Rpm
682
711
74O
772
8O5
839
874
911
948
Bhp
1.82
215
252
293
339
391
4.47
5.09
577
Rpm
748
773
8OO
A
829
859
891
924
B 958
C 993 C
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
1.4 1.6 1.8
Bhp
210
244
282 A
325
373
425
4.83 B
546
C
615
1.0
Rpm
8O8
832
857
883
911
941
972
1003
1036
Bhp
237
273
313
358
407
4.61
519
584
654
AIRFLOW
(Cfm)
5000
5500
6000
6500
7000
7500
8000
8500
9000
B
C
Rpm
865
886
910
935
961
989
1018
1048
1079
1.2
Bhp
264
302
344
390
440
496
556
622
693
Rprn Bhp
A 918 291
938 331
960 374
B 984 422
1008 474
1035 531
1062 593
C 1091 660
1121 732
Rpm
969
988
1008
1030
1054
1079
1105
1133
1161
Bhp
317
359
405
454
508
566
629 C
698
771 D
Rpm
1018
1035
B 1054
1075
1098
1122
1147
1173
1201
Bhp
344
387
435 B
486
541
601 C
666
736 D
811
2.0
Rpm
1065
1081
1099
1118
1140
1163
1187
1212
1239
Bhp
370
416
465
518
575
636
702
773
850
LEGEND
Bhp -- Brake Horsepower input to Fan
Boldface indicates fieId-supplied drive required.
NOTES:
1. Motor drive ranges:
(A) Low Range: 685-939, 4.26 Bhp (208/230 and 460-v), 751-954,
575 Bhp 4 (575-v)
(B) Mid-Low Range: 949-1206, 575 Bhp
(C) Mid-High Range: 941-1176, 863 Bhp
(D) High Range: 1014-1297, 11.50 Bhp
All other rpms require field-supplied drive.
2. See page 30 for general fan performance notes
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