Carrier 50PG20-28 Controls, Start-Up, Operation, Service And Troubleshooting Instructions page 21

AIRFLOW
(Cfm)
5000
5500
6000
6500
7000
7500
8000
8500
9000
Table 17 -- Fan Performance -- 48PGF20 -- Horizontal Supply and Return Units
Rpm
875
952
F
1029
1106
G 1184
H 1262
1341
0.2
Bhp
2.74
338
374
4.67
575
700
8.41
Rpm
931
F 1003
1077
G 1151
1226
H
1302
1378
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
0.4
Bhp Rpm
3.04 984
F
3.32 1053
4.15 1123
G
5.11 1194
6.23 H 1266
7.50 1340
8.95
0.6 0.8
Bhp Rpm
3.34 1035
F
3.70 1100
4.56 G 1167
5.56 1236
H
6.71 1306
8.01 1377
Bhp
333 F
409
G
498
601 H
719
8.53
1.0
Rpm Bhp
1083 369
1145 449
1210 541
1276 647
1344 7.68
AIRFLOW
(Cfm)
5000
5500
6000
6500
7000
7500
8000
8500
9000
Rpm Bhp
F 1130 407
G 1189 490
1251 585
H
1315 694
1381 8.18
1.2
Rpm
1174
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
1.4 1.6 1.8
Bhp Rpm Bhp Rpm
4.45 1218 4.84 G 1259
G
1273
H 1331
1391
5.72
6.74
7.89
H 1313
1369
Bhp Rpm
523 G 1300
1352
G
1232
H 1292
1354
m
m
m
m
m
m
m
5.31
6.29
7.41
615
7.19
2.0
Bhp
563
6.58
LEGEND
Bhp -- Brake Horsepower Input to Fan
Boldface indicates field-supplied motor/drive required
NOTES:
1 Motor drive ranges:
(E) Low Range: Not Used
(F) Mid-Low Range: 896-1227, 4.26 Bhp (208/230 and 460-v), 873-1108,575 Bhp (575-v)
(G) Mid-High Range: 1113-1414, 5.75 Bhp
(H) High Range: 1096-1339, 8.63 Bhp
All other rpms require field-supplied motor or drive
2 See page 30 for general fan performance notes.
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