Bryant 551B Installation Instructions Manual page 32

Single-package rooftop electric cooling units with optional electric heat
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0.35
0.3
0.25
0.2
0.15
0.1
0.05
0
1000
0
Fig. 39 --- Perfect Humidityt Adaptive Dehumidification System Static Pressure Drop (in. wg)
Fig. 40 --- Belt Drive Motor Mounting
Table 8—551B, 551C Fan Rpm at Motor Pulley Setting With Standard Motor*
UNIT
551B
551B
0
551C
024
936
036
1044
048
1185
060
1460
072
1585
*Approximate fan rpm shown (standard motor/drive).
Table 9—551B, 551C Fan Rpm at Motor Pulley Setting With High-Static Motor*
UNIT
UNIT
1
0
/
2
036
1455
1423
048
1455
1423
060
1685
1589
072
1685
1589
*Approximate fan rpm shown (high-static motor/drive).
2000
3000
C06134
1
1
/
1
1
/
2
2
906
876
846
816
1008
971
935
898
1144
1102
1061
1019
1425
1389
1354
1318
1538
1492
1445
1399
MOTOR PULLEY TURNS OPEN
1
1
1
/
2
2
2
1392
1360
1328
1297
1392
1360
1328
1297
1557
1525
1493
1460
1557
1525
1493
1460
4000
Fig. 41 --- Evaporator- -Fan Pulley Adjustment
MOTOR PULLEY TURNS OPEN
1
1
2
2
/
3
3
/
2
2
786
756
726
862
826
789
978
936
895
1283
1248
1212
1352
1305
1259
1
1
/
3
3
/
4
2
2
1265
1233
1202
1265
1233
1202
1428
1396
1364
1428
1396
1364
32
4 & 5 ton
6 ton
3 ton
5000
6000
1
1
4
4
/
5
5
2
696
666
639
753
716
680
853
812
770
1177
1141
1106
1070
1212
1166
1119
1
1
4
/
5
5
/
2
2
1170
1138
1107
1170
1138
1107
1332
1300
1332
1300
C06133
C06041
/
6
2
1035
6
1075
1075

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