Bryant 581C Manual De Usuario

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249
PERFORMANCE DATA (cont)
FAN PERFORMANCE — VERTICAL DISCHARGE UNITS
LEGEND
*Standard low-medium static drive range is 895 to 1147 rpm. Other rpms require a
field-supplied drive.
Refer to page 262 for general Fan Performance Data notes.
NOTES:
1.
Field-supplied motor required.
2. Maximum continuous bhp for the standard motor is 3.13 (for 208/230 and
460-v units) or 3.38 (for 575-v units). The maximum continuous watts is
2700 (for 208/230 and 460-v units) or 3065 (for 575-v units). Do not adjust
motor rpm such that motor maximum bhp and/or watts is exceeded at the
maximum operating cfm. See Evaporator Fan Motor Data tables for more
information.
3. Fan performance is identical for horizontal discharge applications using
Bryant horizontal adapter curb.
LEGEND
*Alternate high-static drive range is 1040 to 1315 (for 208/230 and 460-v
units). The alternate high-static drive is not available for 575-v units. Other
rpms require a field-supplied drive.
Refer to page 262 for general Fan Performance Data notes.
NOTES: 
1.
 Field-supplied motor required.
2. Maximum continuous bhp for the optional motor is 4.26. Maximum continuous
watts for the optional motor is 3610. Do not adjust motor rpm such that motor
maximum bhp and/or watts is exceeded at the maximum operating cfm. See
Evaporator Fan Motor Data tables for more information.
3. Fan performance is identical for horizontal discharge applications using
Bryant horizontal adapter curb.
581A155 (12 TONS) WITH STANDARD MOTOR (Low Heat Units)*
Airflow
(Cfm)
Available External Static Pressure (in. wg)
0.2
0.4
0.6
0.8
1.0
Rpm
Watts
Bhp
Rpm
Watts
Bhp
Rpm
Watts
Bhp
Rpm
Watts
Bhp
Rpm
Watts
Bhp
3750
597
895
0.84
692
967
1.07
781
1150
1.33
858
1342
1.59
928
1527
1.85
4000
625
1014
0.98
714
1097
1.21
800
1292
1.48
876
1495
1.75
945
1689
2.03
4250
653
1141
1.13
737
1236
1.36
820
1442
1.64
895
1656
1.93
963
1859
2.22
4500
682
1274
1.29
761
1382
1.54
840
1599
1.82
914
1824
2.11
982
2037
2.42
4750
711
1415
1.48
786
1538
1.73
861
1765
2.01
934
2001
2.32
1001
2224
2.63
5000
740
1563
1.68
812
1702
1.94
884
1940
2.22
954
2188
2.53
1020
2419
2.86
5250
769
1719
1.89
839
1875
2.16
907
2125
2.45
974
2384
2.77
1039
2625
3.10
5500
799
1884
2.13
867
2060
2.41
931
2321
2.70
996
2592
3.02
1059
2841
3.36
5750
828
2058
2.38
894
2256
2.67
956
2528
2.97
1018
2810
3.29
1080
3069
3.64
6000
857
2243
2.64
923
2464
2.96
982
2748
3.26
1041
3042
3.59
1101
3308
3.94
6250
885
2438
2.93
951
2687
3.27
1008
2981
3.58
1065
3286
3.91
1122
3559
4.26
581A155 (12 TONS) WITH STANDARD MOTOR (Low Heat Units)* (cont)
Airflow
(Cfm)
Available External Static Pressure (in. wg)
1.2
1.4
1.6
1.8
2.0
Rpm
Watts
Bhp
Rpm
Watts
Bhp
Rpm
Watts
Bhp
Rpm
Watts
Bhp
Rpm
Watts
Bhp
3750
992
1756
2.12
1053
1988
2.40
1112
2236
2.68
1169
2497
2.97
1224
2769
3.27
4000
1009
1931
2.31
1069
2173
2.59
1126
2431
2.88
1181
2702
3.18
1234
2984
3.48
4250
1026
2114
2.51
1085
2366
2.80
1141
2634
3.10
1194
2914
3.40
1246
3206
3.72
4500
1044
2304
2.72
1102
2566
3.02
1157
2844
3.33
1209
3133
3.65
1260
3433
3.97
4750
1062
2504
2.95
1120
2775
3.26
1174
3062
3.58
1226
3360
3.91
1275
3666
4.23
5000
1081
2712
3.19
1138
2993
3.52
1191
3288
3.85
1242
3592
4.18
1291
3905
4.52
5250
1100
2931
3.44
1156
3220
3.79
1209
3523
4.13
1260
3832
4.47
1308
4148
4.82
5500
1119
3160
3.72
1175
3457
4.07
1228
3765
4.43
1278
4077
4.78
1326
4395
5.14
5750
1138
3399
4.00
1194
3702
4.37
1246
4014
4.74
1296
4328
5.11
1343
4644
5.48
6000
1158
3649
4.31
1213
3957
4.69
1265
4270
5.07
1315
4581
5.45
6250
1179
3910
4.64
1233
4219
5.02
1284
4531
5.41
Bhp
Brake Horsepower
Watts
Input Watts to Motor
581A155 (12 TONS) WITH OPTIONAL MOTOR (Low Heat Units)*
Airflow
(Cfm)
Available External Static Pressure (in. wg)
0.2
0.4
0.6
0.8
1.0
Rpm
Watts
Bhp
Rpm
Watts
Bhp
Rpm
Watts
Bhp
Rpm
Watts
Bhp
Rpm
Watts
Bhp
3750
597
895
0.84
692
967
1.07
781
1150
1.33
858
1342
1.59
928
1527
1.85
4000
625
1014
0.98
714
1097
1.21
800
1292
1.48
876
1495
1.75
945
1689
2.03
4250
653
1141
1.13
737
1236
1.36
820
1442
1.64
895
1656
1.93
963
1859
2.22
4500
682
1274
1.29
761
1382
1.54
840
1599
1.82
914
1824
2.11
982
2037
2.42
4750
711
1415
1.48
786
1538
1.73
861
1765
2.01
934
2001
2.32
1001
2224
2.63
5000
740
1563
1.68
812
1702
1.94
884
1940
2.22
954
2188
2.53
1020
2419
2.86
5250
769
1719
1.89
839
1875
2.16
907
2125
2.45
974
2384
2.77
1039
2625
3.10
5500
799
1884
2.13
867
2060
2.41
931
2321
2.70
996
2592
3.02
1059
2841
3.36
5750
828
2058
2.38
894
2256
2.67
956
2528
2.97
1018
2810
3.29
1080
3069
3.64
6000
857
2243
2.64
923
2464
2.96
982
2748
3.26
1041
3042
3.59
1101
3308
3.94
6250
885
2438
2.93
951
2687
3.27
1008
2981
3.58
1065
3286
3.91
1122
3559
4.26
581A155 (12 TONS) WITH OPTIONAL MOTOR (Low Heat Units)* (cont)
Airflow
(Cfm)
Available External Static Pressure (in. wg)
1.2
1.4
1.6
1.8
2.0
Rpm
Watts
Bhp
Rpm
Watts
Bhp
Rpm
Watts
Bhp
Rpm
Watts
Bhp
Rpm
Watts
Bhp
3750
992
1756
2.12
1053
1988
2.40
1112
2236
2.68
1169
2497
2.97
1224
2769
3.27
4000
1009
1931
2.31
1069
2173
2.59
1126
2431
2.88
1181
2702
3.18
1234
2984
3.48
4250
1026
2114
2.51
1085
2366
2.80
1141
2634
3.10
1194
2914
3.40
1246
3206
3.72
4500
1044
2304
2.72
1102
2566
3.02
1157
2844
3.33
1209
3133
3.65
1260
3433
3.97
4750
1062
2504
2.95
1120
2775
3.26
1174
3062
3.58
1226
3360
3.91
1275
3666
4.23
5000
1081
2712
3.19
1138
2993
3.52
1191
3288
3.85
1242
3592
4.18
1291
3905
4.52
5250
1100
2931
3.44
1156
3220
3.79
1209
3523
4.13
1260
3832
4.47
1308
4148
4.82
5500
1119
3160
3.72
1175
3457
4.07
1228
3765
4.43
1278
4077
4.78
1326
4395
5.14
5750
1138
3399
4.00
1194
3702
4.37
1246
4014
4.74
1296
4328
5.11
1343
4644
5.48
6000
1158
3649
4.31
1213
3957
4.69
1265
4270
5.07
1315
4581
5.45
6250
1179
3910
4.64
1233
4219
5.02
1284
4531
5.41
Bhp
— Brake Horsepower
Watts
— Input Watts to Motor
581
A1
55
-30
0