Bryant 581C Manual De Usuario

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262
PERFORMANCE DATA (cont)
FAN PERFORMANCE — HORIZONTAL DISCHARGE UNITS (cont)
                        LEGEND
*Motor drive ranges:
Low Range: 896-1227 (208/230 and 460-v), 863-1141 (575-v)
High Range: 1113-1414 (208/230 and 460-v), 1042-1285 (575-v)
All other rpms require field-supplied drive.
Refer to page 261 for general Fan Performance Data notes.
NOTE: Maximum continuous bhp is:
Low Range: 4.25 (208/230 and 460-v), 3.45 (575-v)
High Range: 5.75
581A210 (18 TONS) (Low Heat Units)*
Airflow
(Cfm)
External Static Pressure (in. wg)
0.2
0.4
0.6
0.8
1.0
Rpm
Bhp
Watts
Rpm
Bhp
Watts
Rpm
Bhp
Watts
Rpm
Bhp
Watts
Rpm
Bhp
Watts
3,500
635
1064
1.22
709
1278
1.47
776
1492
1.72
838
1708
1.96
896
1924
2.21
4,000
707
1402
1.61
773
1627
1.87
835
1853
2.13
892
2080
2.39
947
2307
2.65
4,500
780
1802
2.07
840
2037
2.34
897
2273
2.61
950
2510
2.89
1001
2465
2.84
5,000
853
2264
2.60
909
2510
2.89
961
2756
3.17
1011
2710
3.12
1059
3015
3.47
5,500
928
2794
3.21
979
3049
3.51
1028
3012
3.46
1075
3333
3.83
1120
3661
4.21
6,000
1003
3047
3.50
1051
3376
3.88
1096
3714
4.27
1140
4059
4.67
1182
4411
5.07
6,500
1079
3812
4.38
1123
4166
4.79
1166
4529
5.21
1207
4898
5.63
1247
5274
6.07
7,000
1155
4697
5.40
1196
5078
5.84
1236
5465
6.29
1275
5859
6.74
1313
6260
7.20
7,500
1231
5714
6.57
1270
6120
7.04
1308
6533
7.51
1345
6952
8.00
1381
7378
8.49
8,000
1308
6871
7.90
1344
7303
8.40
1380
7741
8.90
8,500
1385
8177
9.40
9,000
9,500
10,000
581A210 (18 TONS) (Low Heat Units)* (cont)
Airflow
(Cfm)
External Static Pressure (in. wg)
1.2
1.4
1.6
1.8
2.0
Rpm
Bhp
Watts
Rpm
Bhp
Watts
Rpm
Bhp
Watts
Rpm
Bhp
Watts
Rpm
Bhp
Watts
3,500
951
2143
2.46
1003
2120
2.44
1052
2387
2.75
1100
2662
3.06
1146
2944
3.39
4,000
998
2535
2.92
1048
2548
2.93
1095
2835
3.26
1141
3129
3.60
1184
3432
3.95
4,500
1050
2756
3.17
1097
3055
3.51
1142
3363
3.87
1185
3678
4.23
1227
4001
4.60
5,000
1105
3329
3.83
1150
3651
4.20
1192
3979
4.58
1234
4315
4.96
1274
4658
5.36
5,500
1163
3997
4.60
1205
4342
4.99
1246
4692
5.40
1286
5051
5.81
1324
5415
6.23
6,000
1224
4771
5.49
1263
5138
5.91
1302
5511
6.34
1340
5892
6.78
1377
6278
7.22
6,500
1286
5658
6.51
1324
6048
6.96
1361
6445
7.41
1397
6847
7.87
7,000
1350
6668
7.67
1386
7081
8.14
7,500
8,000
8,500
9,000
9,500
10,000
Bhp
— Brake Horsepower Input to Fan
Watts — Input Watts to Motor