87 performance data (cont), Fan performance — vertical discharge units (cont) – Bryant DURAPAC 551B User Manual
Page 87

87
PERFORMANCE DATA (cont)
FAN PERFORMANCE — VERTICAL DISCHARGE UNITS (cont)
LEGEND
NOTES:
1.
Boldface indicates a field-supplied drive is required. (See Note 4.)
2.
indicates field-supplied motor and drive are required.
3.
Maximum continuous bhp is 2.40 for standard motors; 2.90 for high-static motors.
4.
Motor drive range: 1120 to 1585 rpm for standard motors; 1300 to 1685 rpm for high-
static motors. All other rpms require field-supplied drive.
5.
See page 93 for general fan performance notes.
LEGEND
NOTES:
1.
Boldface indicates a field-supplied drive is required. (See Note 6.)
2.
indicates a high-static motor and drive is required.
3.
Maximum continuous bhp is 2.90 for standard motors; 4.20 for high-static motors.
4.
Standard motor drive range: 840 to 1085 rpm. High-static motor drive range is 860 to
1080 rpm. All other rpms require field-supplied drive.
5.
See page 93 for general fan performance notes.
LEGEND
NOTES:
1.
Boldface indicates a field-supplied drive is required. (See Note 4.)
2.
indicates a high-static motor and drive is required.
3.
Maximum continuous bhp is 2.90 for standard motors; 4.20 for high-static motors.
4.
Standard motor drive range: 840 to 1085 rpm. High-static motor drive range is 860 to
1080 rpm. All other rpms require field-supplied drive.
5.
See page 93 for general fan performance notes.
551B072 (6 TONS) — STANDARD MOTOR (BELT DRIVE)
Airflow
(Cfm)
External Static Pressure (in. wg)
0.1
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
Rpm
Bhp
Rpm
Bhp
Rpm
Bhp
Rpm
Bhp
Rpm
Bhp
Rpm
Bhp
Rpm
Bhp
Rpm
Bhp
Rpm
Bhp
1800
852
0.55
905
0.62
1002
0.78
1084
0.93
1163
1.10
1235
1.29
1303
1.48
1371
1.69
1433
1.90
1900
894
0.64
945
0.72
1037
0.88
1119
1.04
1194
1.21
1266
1.40
1330
1.59
1396
1.81
1460
2.03
2000
936
0.74
984
0.82
1072
0.98
1154
1.16
1226
1.33
1297
1.53
1362
1.73
1422
1.94
1485
2.16
2100
978
0.85
1024
0.93
1108
1.10
1190
1.29
1259
1.47
1327
1.66
1393
1.87
1452
2.08
1510
2.31
2200
1021
0.97
1064
1.05
1145
1.22
1225
1.43
1294
1.62
1359
1.81
1423
2.02
1483
2.24
1538
2.46
2300
1064
1.10
1104
1.18
1183
1.36
1260
1.57
1330
1.78
1392
1.97
1454
2.18
1515
2.41
1569
2.64
2400
1107
1.24
1145
1.32
1222
1.52
1296
1.73
1365
1.94
1426
2.15
1485
2.36
1544
2.59
1601
2.84
2500
1150
1.39
1186
1.48
1262
1.68
1331
1.89
1400
2.12
1461
2.34
1518
2.55
1575
2.78
—
—
2600
1193
1.56
1228
1.65
1301
1.86
1367
2.07
1435
2.31
1497
2.54
1552
2.76
—
—
—
—
2700
1237
1.74
1269
1.83
1341
2.05
1404
2.26
1471
2.51
1532
2.75
—
—
—
—
—
—
2800
1280
1.94
1311
2.03
1381
2.25
1442
2.47
1506
2.72
—
—
—
—
—
—
—
—
2900
1324
2.15
1354
2.24
1420
2.47
1481
2.69
1542
2.94
—
—
—
—
—
—
—
—
3000
1368
2.37
1396
2.46
1460
2.69
1521
2.93
—
—
—
—
—
—
—
—
—
—
551B072 (6 TONS) — HIGH-STATIC MOTOR (BELT DRIVE)
Airflow
(Cfm)
External Static Pressure (in. wg)
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
2.0
Rpm
Bhp
Rpm
Bhp
Rpm
Bhp
Rpm
Bhp
Rpm
Bhp
Rpm
Bhp
Rpm
Bhp
Rpm
Bhp
Rpm
Bhp
Rpm
Bhp
1800
906
0.62
1002
0.78
1084
0.93
1163
1.10
1235
1.29
1303
1.48
1371
1.69
1433
1.90
1481
2.10
1525
2.29
1900
945
0.72
1037
0.88
1119
1.04
1194
1.21
1266
1.40
1330
1.59
1396
1.81
1460
2.03
1509
2.24
1554
2.45
2000
984
0.82
1072
0.98
1154
1.16
1226
1.33
1297
1.63
1362
1.73
1422
1.94
1485
2.16
1535
2.38
1581
2.61
2100
1024
0.93
1108
1.10
1190
1.29
1259
1.47
1327
1.66
1393
1.87
1452
2.08
1510
2.31
1561
2.65
1607
2.79
2200
1064
1.05
1145
1.22
1225
1.43
1294
1.62
1359
1.81
1423
2.02
1483
2.24
1538
2.46
1590
2.72
1637
2.97
2300
1104
1.18
1183
1.36
1260
1.57
1330
1.78
1392
1.97
1454
2.18
1515
2.41
1569
2.64
1622
2.91
1670
3.18
2400
1145
1.32
1222
1.52
1296
1.73
1365
1.94
1426
2.15
1485
2.36
1544
2.59
1601
2.84
1655
3.14
1704
3.43
2500
1186
1.48
1262
1.68
1331
1.89
1400
2.12
1461
2.34
1518
2.55
1575
2.78
1635
3.11
1690
3.43
1740
3.75
2600
1228
1.66
1301
1.86
1367
2.07
1435
2.31
1497
2.54
1552
2.76
1620
3.14
1662
3.51
1739
3.88
1791
4.24
2700
1269
1.83
1341
2.05
1404
2.26
1471
2.51
1532
2.75
1612
3.21
1683
3.65
1747
4.08
—
—
—
—
2800
1311
2.03
1381
2.25
1442
2.47
1506
2.72
1603
3.28
1687
3.82
1761
4.36
—
—
—
—
—
—
2900
1354
2.24
1420
2.47
1481
2.69
1542
2.94
1641
3.55
1727
4.13
—
—
—
—
—
—
—
—
3000
1396
2.46
1460
2.69
1521
2.93
1649
3.73
1755
4.50
—
—
—
—
—
—
—
—
—
—
Bhp
—
Brake Horsepower Input to Fan
551B090 (7
1
/
2
TONS) — STANDARD AND HIGH-STATIC MOTOR (BELT DRIVE)
Airflow
(Cfm)
External Static Pressure (in. wg)
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
2.0
Rpm
Bhp
Rpm
Bhp
Rpm
Bhp
Rpm
Bhp
Rpm
Bhp
Rpm
Bhp
Rpm
Bhp
Rpm
Bhp
Rpm
Bhp
Rpm
Bhp
2250
511
0.52
592
0.74
659
0.95
722
1.19
778
1.43
829
1.68
884
1.97
937
2.33
947
2.66
1022
3.10
2300
518
0.55
599
0.77
665
0.98
727
1.22
783
1.47
834
1.72
885
2.00
939
2.36
979
2.69
1025
3.12
2400
534
0.61
613
0.84
677
1.06
738
1.30
794
1.55
844
1.81
892
2.08
944
2.40
987
2.76
1039
3.20
2500
549
0.67
627
0.90
690
1.14
750
1.38
805
1.64
855
1.91
902
2.18
949
2.48
1002
2.84
1041
3.25
2550
557
0.71
633
0.94
697
1.18
756
1.42
811
1.69
861
1.96
908
2.24
953
2.53
1003
2.87
1045
3.28
2600
565
0.74
639
0.97
703
1.22
761
1.46
816
1.74
866
2.01
913
2.29
957
2.58
1004
2.91
1050
3.31
2700
581
0.81
652
1.04
717
1.31
773
1.55
827
1.83
878
2.12
924
2.40
967
2.70
1010
3.01
1056
3.37
2800
597
0.89
665
1.12
733
1.40
786
1.66
839
1.93
889
2.23
935
2.52
978
2.62
1019
3.13
1061
3.47
2900
613
0.97
679
1.20
745
1.50
799
1.76
850
2.04
900
2.34
946
2.65
989
2.96
1030
3.27
—
—
3000
629
1.06
694
1.29
759
1.59
812
1.88
862
2.15
911
2.46
957
2.78
1000
3.09
1040
3.41
—
—
3100
646
1.15
709
1.39
772
1.70
825
1.99
875
2.28
923
2.58
968
2.91
1011
3.24
—
—
—
—
3200
662
1.25
724
1.50
785
1.80
840
2.11
887
2.41
934
2.71
980
3.04
1022
3.38
—
—
—
—
3300
679
1.35
740
1.61
798
1.91
854
2.24
900
2.54
946
2.85
991
3.18
—
—
—
—
—
—
3400
696
1.46
756
1.73
811
2.02
868
2.37
914
2.69
959
3.00
1003
3.32
—
—
—
—
—
—
3500
712
1.57
771
1.85
824
2.14
881
2.50
928
2.84
971
3.16
1014
3.48
—
—
—
—
—
—
3600
729
1.69
787
1.98
839
2.21
894
2.64
942
2.99
984
3.22
—
—
—
—
—
—
—
—
3700
746
1.85
803
2.12
854
2.42
907
2.78
956
3.15
997
3.49
—
—
—
—
—
—
—
—
3750
755
1.89
811
2.20
862
2.49
914
2.85
963
3.23
—
—
—
—
—
—
—
—
—
—
Bhp
—
Brake Horsepower Input to Fan
551B102 (8
1
/
2
TONS) — STANDARD AND HIGH-STATIC MOTOR (BELT DRIVE)
Airflow
(Cfm)
External Static Pressure (in. wg)
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
2.0
Rpm
Bhp
Rpm
Bhp
Rpm
Bhp
Rpm
Bhp
Rpm
Bhp
Rpm
Bhp
Rpm
Bhp
Rpm
Bhp
Rpm
Bhp
Rpm
Bhp
2550
557
0.71
633
0.94
697
1.18
756
1.42
811
1.69
861
1.96
908
2.24
953
2.53
1003
2.87
1045
3.28
2600
565
0.74
639
0.97
703
1.22
761
1.46
816
1.74
866
2.01
913
2.29
957
2.58
1004
2.91
1050
3.31
2700
581
0.81
652
1.04
717
1.31
773
1.55
827
1.83
878
2.12
924
2.40
967
2.70
1010
3.01
1056
3.37
2800
597
0.89
665
1.12
733
1.40
786
1.66
839
1.93
889
2.23
935
2.52
978
2.62
1019
3.13
1061
3.41
2900
613
0.97
679
1.20
745
1.50
799
1.76
850
2.04
900
2.34
946
2.65
989
2.96
1030
3.27
—
—
3000
629
1.06
694
1.29
759
1.59
812
1.88
862
2.15
911
2.46
957
2.78
1000
3.09
1040
3.41
—
—
3100
646
1.15
709
1.39
772
1.70
825
1.99
875
2.28
923
2.58
968
2.91
1011
3.24
—
—
—
—
3200
662
1.25
724
1.50
785
1.80
840
2.11
887
2.41
934
2.71
980
3.04
1022
3.38
—
—
—
—
3300
679
1.35
740
1.61
798
1.91
854
2.24
900
2.54
946
2.85
991
3.18
—
—
—
—
—
—
3400
696
1.46
756
1.73
811
2.02
868
2.37
914
2.69
959
3.00
1003
3.52
—
—
—
—
—
—
3500
712
1.57
771
1.85
824
2.14
881
2.50
928
2.84
971
3.16
1014
3.48
—
—
—
—
—
—
3600
729
1.69
787
1.98
839
2.27
894
2.64
942
2.99
984
3.32
—
—
—
—
—
—
—
—
3700
746
1.82
803
2.12
854
2.42
907
2.78
956
3.15
997
3.49
—
—
—
—
—
—
—
—
3750
755
1.89
811
2.20
862
2.49
914
2.85
963
3.23
—
—
—
—
—
—
—
—
—
—
3800
763
1.95
819
2.27
869
2.56
920
2.92
970
3.31
—
—
—
—
—
—
—
—
—
—
3900
780
2.09
835
2.42
884
2.72
933
3.07
983
3.48
—
—
—
—
—
—
—
—
—
—
4000
796
2.23
851
2.56
900
2.89
946
3.23
—
—
—
—
—
—
—
—
—
—
—
—
4100
813
2.39
867
2.74
915
3.06
960
3.40
—
—
—
—
—
—
—
—
—
—
—
—
4200
830
2.55
883
2.91
931
3.24
—
—
—
—
—
—
—
—
—
—
—
—
—
—
4250
839
2.63
892
3.00
939
3.34
—
—
—
—
—
—
—
—
—
—
—
—
—
—
Bhp
—
Brake Horsepower Input to Fan
0TF
Q
0
04-
01
2
5
5
1
B
03
6-
15
0