28
Table 14 — Fan Performance — 48PGD20 — Horizontal Supply and Return Units
LEGEND
Boldface indicates field-supplied motor/drive required.
NOTES:
1. Motor drive ranges:
(E) Low Range: Not Used
(F) Mid-Low Range: 896-1227 rpm, 4.26 bhp (208/230 and 460-v), 873-1108 rpm, 5.75 bhp (575-v)
(G) Mid-High Range: 1113-1414 rpm, 5.75 bhp
(H) High Range: 1096-1339 rpm, 8.63 bhp
All other rpms require field-supplied motor or drive.
2. See page 36 for general fan performance notes.
AIRFLOW
(Cfm)
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
0.20.40.60.8 1.0
Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp
5000 862 2.65 917 2.93 969 3.21 1019 3.17 1066 3.52
5500 937 3.26 988 3.56 1036 3.53 1083 3.90 1127 4.28
6000 1013 3.58 1060 3.96 1105 4.35 1149 4.75 1191 5.16
6500 1089 4.48 1133 4.89 1175 5.31 1216 5.73 1256 6.17
7000 1166 5.52 1207 5.96 1247 6.41 1285 6.86 1323 7.32
7500 1243 6.71 1282 7.18 1319 7.66 1355 8.14 1391 8.63
8000 1320 8.07 1356 8.57 1392 9.08 ——— —
8500 1398 9.60 ——————— —
9000 ————————— —
AIRFLOW
(Cfm)
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
1.21.41.61.82.0
Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp
5000 1112 3.88 1156 4.25 1199 4.63 1240 5.02 1280 5.42
5500 1171 4.67 1212 5.06 1253 5.47 1292 5.88 1331 6.30
6000 1232 5.57 1271 6.00 1310 6.43 1348 6.87 1384 7.31
6500 1295 6.61 1333 7.06 1369 7.52 ————
7000 1360 7.80 1396 8.27 ——————
7500 ——————————
8000 ——————————
8500 ——————————
9000 ——————————
Bhp — Brake Horsepower Input to Fan
F
F
F
F
F
G
G
G
G
G
H
H
H
H
H
H
H
H
H
H
G
G
G
G
G
F
F
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