255
PERFORMANCE DATA (cont)
FAN PERFORMANCE — VERTICAL DISCHARGE UNITS (cont)
LEGEND
*Motor drive ranges:
Low Range: 647-886 (208/230 and 460-v), 810-1072 (575-v)
High Range: 897-1139 (208/230 and 460-v), 873-1108 (575-v)
All other rpms require field-supplied drive.
Refer to page 262 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) (High 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
3500
470
611
0.70
556
791
0.91
630
967
1.11
697
1141
1.31
760
1314
1.51
4000
511
802
0.92
591
1001
1.15
661
1194
1.37
725
1383
1.59
784
1572
1.81
4500
553
1029
1.18
629
1248
1.44
695
1458
1.68
756
1663
1.91
812
1866
2.15
5000
597
1297
1.49
669
1534
1.76
732
1761
2.03
789
1982
2.28
843
2201
2.53
5500
641
1606
1.85
709
1862
2.14
770
2106
2.42
825
2343
2.70
876
2577
2.96
6000
686
1961
2.26
751
2234
2.57
809
2495
2.87
862
2749
3.16
911
2997
3.45
6500
732
2363
2.72
794
2653
3.05
849
2931
3.37
900
3201
3.68
948
3465
3.99
7000
779
2815
3.24
837
3122
3.59
891
3416
3.93
940
3702
4.26
986
3981
4.58
7500
826
3320
3.82
882
3642
4.19
933
3953
4.55
980
4254
4.89
1025
4549
5.23
8000
873
3879
4.46
926
4217
4.85
975
4542
5.22
1021
4860
5.59
1065
5169
5.95
8500
921
4495
5.17
972
4847
5.57
1019
5189
5.97
1063
5521
6.35
1105
5846
6.72
581A210 (18 TONS) (High 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
3500
818
1488
1.71
874
1661
1.91
927
1835
2.11
978
2008
2.31
1026
2182
2.51
4000
840
1760
2.02
893
1948
2.24
943
2136
2.46
992
2324
2.67
1039
2512
2.89
4500
865
2068
2.38
915
2270
2.61
964
2472
2.84
1011
2673
3.07
1056
2876
3.31
5000
893
2417
2.78
942
2632
3.03
988
2848
3.28
1033
3063
3.52
1076
3278
3.77
5500
925
2808
3.23
971
3037
3.49
1016
3266
3.76
1059
3494
4.02
1100
3721
4.28
6000
958
3243
3.73
1003
3486
4.01
1045
3728
4.29
1087
3970
4.57
1127
4210
4.84
6500
993
3725
4.28
1036
3982
4.58
1077
4238
4.87
1117
4492
5.17
1156
4745
5.46
7000
1029
4256
4.90
1071
4528
5.21
1111
4797
5.52
1150
5064
5.82
1187
5330
6.13
7500
1067
4838
5.56
1107
5124
5.89
1146
5407
6.22
1184
5688
6.54
1220
5967
6.86
8000
1106
5474
6.30
1145
5774
6.64
1182
6071
6.98
1219
6365
7.32
1254
6657
7.66
8500
1145
6165
7.09
1183
6479
7.45
1220
6790
7.81
1255
7098
8.16
1290
7403
8.51
Bhp
—
Brake Horsepower Input to Fan
Watts —
Input Watts to Motor
581
A1
55
-30
0
Summary of Contents for 581A
Page 30: ...30 BASE UNIT DIMENSIONS 580F036 072 a48 8195 580F036 151 ...
Page 31: ...31 BASE UNIT DIMENSIONS 580F073 a48 8196 580F036 151 ...
Page 32: ...32 BASE UNIT DIMENSIONS 580F090 120 150 a48 8197 580F036 151 ...
Page 33: ...33 BASE UNIT DIMENSIONS 580F091 103 121 151 a48 8198 580F036 151 ...
Page 91: ...91 BASE UNIT DIMENSIONS 581B036 072 a48 8199 581B036 150 ...
Page 93: ...93 ACCESSORY DIMENSIONS 581B036 072 a48 8201 581B036 150 ...
Page 94: ...94 ACCESSORY DIMENSIONS 581B090 150 a48 8202 581B036 150 ...
Page 150: ...150 BASE UNIT DIMENSIONS 581C024 060 581C024 060 ...
Page 198: ...198 TYPICAL WIRING SCHEMATICS 579F 579F240 208 230 V Shown a48 7929 ...
Page 205: ...205 BASE UNIT DIMENSIONS 580F180 210 a48 8203 580F180 300 ...
Page 206: ...206 BASE UNIT DIMENSIONS 580F240 a48 8204 ...
Page 207: ...207 BASE UNIT DIMENSIONS 580F300 a48 8205 580F180 300 ...
Page 209: ...209 ACCESSORY DIMENSIONS 580F300 Vertical Roof Curbs 580F300 a48 7456 580F180 300 ...
Page 233: ...233 BASE UNIT DIMENSIONS 581A210 300 a48 8206 581A155 180 ...
Page 237: ...237 ACCESSORY DIMENSIONS 581A210 300 a48 8234 581A155 180 ...
Page 280: ...280 TYPICAL PIPING AND WIRING 581A 581A155 Shown LEGEND NEC National Electrical Code b48 1258 ...
Page 297: ...297 ...