42
Table 25—Fan Performance 551B 036, 551C 036 — Horizontal Discharge Units; Standard Motor
(Belt Drive)*
A
I
R
F
L
O
W
EXTERNAL STATIC PRESSURE (in. wg)
AIRFLOW
C
F
M
0.2 0.4 0.6 0.8 1.0
C
F
M
Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts
900 554 0.14 134 681 0.22 222 783 0.32 316 870 0.42 416 947 0.53 523
1000 583 0.16 163 707 0.26 257 808 0.36 358 894 0.47 465 971 0.58 578
1100 612 0.20 195 735 0.30 298 834 0.41 406 919 0.52 519 995 0.64 638
1200 643 0.23 233 762 0.35 344 860 0.46 459 944 0.58 579 1020 0.71 705
1300 674 0.28 276 791 0.40 395 887 0.52 517 970 0.65 645 1045 0.78 777
1400 706 0.33 324 820 0.45 451 914 0.59 582 997 0.72 717 1071 0.86 857
1500 738 0.38 379 849 0.52 515 942 0.66 653 1024 0.80 796 1097 0.95 942
A
I
R
F
L
O
W
EXTERNAL STATIC PRESSURE (in. wg)
AIRFLOW
C
F
M
1.2 1.4 1.6 1.8 2.0
C
F
M
Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts
900 1017 0.64 635 1082 0.76 753 1143 0.88 876 1200 1.01 1004 1254 1.14 1136
1000 1041 0.70 696 1105 0.82 820 1166 0.95 948 1223 1.09 1081 — — —
1100 1065 0.77 763 1129 0.90 892 1189 1.03 1026 1245 1.17 1165 — — —
1200 1089 0.84 835 1153 0.98 971 1212 1.12 1111 — — — — — —
1300 1114 0.92 915 1177 1.06 1056 — — — — — — — — —
1400 1139 1.01 1000 1202 1.15 1149 — — — — — — — — —
1500 1164 1.10 1093 — — — — — — — — — — — —
NOTES:
1. Bold cells indicate field-supplied drive is requi red.
2. Maximum continuous bhp is 1.20.
3. See general fan performance notes.
LEGEND
Bhp — Brake Horsepower
Watts — Input Watts to Motor
*Motor drive ran ge: 680 to 1044 rpm. All other rpms require field-supplied
drive.
Table 26—Fan Performance 551B 036, 551C 036 — Horizontal Discharge Units; High-Static Motor (Belt Drive)*
A
I
R
F
L
O
W
EXTERNAL STATIC PRESSURE (in. wg)
AIRFLOW
C
F
M
0.2 0.4 0.6 0.8 1.0
C
F
M
Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts
900 554 0.14 134 681 0.22 222 783 0.32 316 870 0.42 416 947 0.53 523
1000 583 0.16 163 707 0.26 257 808 0.36 358 894 0.47 465 971 0.58 578
1100 612 0.20 195 735 0.30 298 834 0.41 406 919 0.52 519 995 0.64 638
1200 643 0.23 233 762 0.35 344 860 0.46 459 944 0.58 579 1020 0.71 705
1300 674 0.28 276 791 0.40 395 887 0.52 517 970 0.65 645 1045 0.78 777
1400 706 0.33 324 820 0.45 451 914 0.59 582 997 0.72 717 1071 0.86 857
1500 738 0.38 379 849 0.52 515 942 0.66 653 1024 0.80 796 1097 0.95 942
A
I
R
F
L
O
W
EXTERNAL STATIC PRESSURE (in. wg)
A
I
R
F
L
O
W
C
F
M
1.2 1.4 1.6 1.8 2.0
C
F
M
Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts
900 1017 0.64 635 1082 0.76 753 1143 0.88 876 1200 1.01 1004 1254 1.14 1136
1000 1041 0.70 696 1105 0.82 820 1166 0.95 948 1223 1.09 1081 1276 1.23 1219
1100 1065 0.77 763 1129 0.90 892 1189 1.03 1026 1245 1.17 1165 1299 1.32 1308
1200 1089 0.84 835 1153 0.98 971 1212 1.12 1111 1269 1.26 1256 1322 1.41 1404
1300 1114 0.92 915 1177 1.06 1056 1236 1.21 1202 1292 1.36 1353 1346 1.52 1508
1400 1139 1.01 1000 1202 1.15 1149 1261 1.31 1301 1316 1.47 1457 1369 1.63 1618
1500 1164 1.10 1093 1227 1.25 1248 1285 1.41 1407 1341 1.58 1570 1394 1.75 1736
NOTES:
1. Bold cells indicate field-supplied drive is requi red.
2. Maximum continuous bhp is 2.40.
3. See general fan performance notes.
LEGEND
Bhp — Brake Horsepower
Watts — Input Watts to Motor
*Motor drive ran ge: 1075 to 1455 rpm. All other rpms require field-supplied
drive.
551B,C