154
PERFORMANCE DATA — 581C
LEGEND
*Motor drive range: 1075 to 1455 rpm. All other rpms require field-
supplied drive.
Refer to page 107 for general Fan Performance Data notes.
NOTES:
1.
Boldface
indicates field-supplied drive is required.
2. Maximum continuous bhp is 2.40.
FAN PERFORMANCE — VERTICAL DISCHARGE UNITS (cont)
LEGEND
*Motor drive range: 770 to 1185 rpm. All other rpms require field-
supplied drive.
Refer to page 107 for general Fan Performance Data notes.
NOTES:
1.
Boldface
indicates field-supplied drive is required.
2. Maximum continuous bhp is 1.20.
581C036 (3 TONS) — HIGH-STATIC MOTOR (BELT DRIVE)* (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
900
1016
0.51
505
1080
0.57
572
1139
0.64
637
1195
0.71
702
1249
0.77
765
1000
1041
0.59
587
1104
0.67
662
1163
0.74
737
1219
0.81
811
1272
0.89
883
1100
1066
0.68
674
1129
0.76
759
1188
0.85
843
1243
0.93
925
1296
1.01
1007
1200
1093
0.77
767
1155
0.87
861
1213
0.96
955
1268
1.05
1047
1321
1.14
1137
1300
1119
0.87
866
1181
0.98
970
1239
1.08
1073
1294
1.18
1175
1346
1.28
1275
1400
1147
0.98
972
1208
1.09
1086
1265
1.21
1199
1320
1.32
1310
1371
1.43
1419
1500
1175
1.09
1086
1235
1.22
1209
1292
1.34
1332
1346
1.46
1452
1397
1.58
1572
Bhp
—
Brake Horsepower
Watts
—
Input Watts to Motor
581C048 (4 TONS) — STANDARD MOTOR (BELT DRIVE)*
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
1200
666
0.26
257
778
0.37
367
871
0.47
471
952
0.57
572
1025
0.67
670
1300
701
0.31
306
810
0.43
426
901
0.54
540
981
0.65
651
1053
0.76
760
1400
737
0.36
361
842
0.49
491
931
0.62
616
1010
0.74
738
1081
0.86
856
1500
773
0.42
422
875
0.57
564
963
0.70
699
1040
0.84
831
1110
0.96
960
1600
810
0.49
491
909
0.65
643
994
0.79
790
1070
0.94
932
1140
1.08
1070
1700
847
0.57
567
943
0.73
730
1027
0.89
888
1101
1.05
1040
1170
1.20
1189
1800
885
0.66
652
978
0.83
826
1060
1.00
994
1133
1.16
1157
—
—
—
1900
923
0.75
745
1014
0.94
930
1093
1.11
1109
—
—
—
—
—
—
2000
962
0.85
847
1049
1.05
1043
—
—
—
—
—
—
—
—
—
581C048 (4 TONS) — STANDARD MOTOR (BELT DRIVE)* (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
1200
1093
0.77
767
1155
0.87
861
1213
0.96
955
1268
1.05
1047
1321
1.14
1137
1300
1119
0.87
866
1181
0.98
970
1239
1.08
1073
1294
1.18
1175
—
—
—
1400
1147
0.98
972
1208
1.09
1086
—
—
—
—
—
—
—
—
—
1500
1175
1.09
1086
—
—
—
—
—
—
—
—
—
—
—
—
1600
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
1700
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
1800
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
1900
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
2000
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
Bhp
—
Brake Horsepower
Watts
—
Input Watts to Motor
581C048 (4 TONS) — HIGH-STATIC MOTOR (BELT DRIVE)*
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
1200
666
0.26
257
778
0.37
367
871
0.47
471
952
0.57
572
1025
0.67
670
1300
701
0.31
306
810
0.43
426
901
0.54
540
981
0.65
651
1053
0.76
760
1400
737
0.36
361
842
0.49
491
931
0.62
616
1010
0.74
738
1081
0.86
856
1500
773
0.42
422
875
0.57
564
963
0.70
699
1040
0.84
831
1110
0.96
960
1600
810
0.49
491
909
0.65
643
994
0.79
790
1070
0.94
932
1140
1.08
1070
1700
847
0.57
567
943
0.73
730
1027
0.89
888
1101
1.05
1040
1170
1.20
1189
1800
885
0.66
652
978
0.83
826
1060
1.00
994
1133
1.16
1157
1200
1.32
1316
1900
923
0.75
745
1014
0.94
930
1093
1.11
1109
1165
1.29
1283
1231
1.46
1453
2000
962
0.85
847
1049
1.05
1043
1127
1.24
1233
1198
1.42
1417
1263
1.61
1598
58
1C02
4-
060
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 ...