269
PERFORMANCE DATA (cont)
FAN PERFORMANCE — HORIZONTAL DISCHARGE UNITS (cont)
LEGEND
*Motor drive ranges:
Low Range: 805-1007
High Range: 941-1176
All other rpms require field-supplied drive.
Refer to page 261 for general Fan Performance Data notes.
NOTE:
Maximum continuous bhp is:
Low Range: 5.75
High Range: 8.63
581A300 (25 TONS) (Medium 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
6,500
799
2,730
3.14
833
2,914
3.35
872
3,135
3.61
914
3,392
3.90
958
3,687
4.24
7,000
856
3,294
3.79
887
3,481
4.00
921
3,699
4.25
958
3,950
4.54
999
4,235
4.87
7,500
913
3,929
4.52
941
4,118
4.74
972
4,335
4.99
1006
4,582
5.27
1042
4,860
5.59
8,000
971
4,637
5.33
996
4,829
5.55
1024
5,046
5.80
1055
5,290
6.08
1088
5,562
6.40
8,500
1029
5,421
6.24
1052
5,617
6.46
1078
5,835
6.71
1106
6,077
6.99
1136
6,345
7.30
9,000
1087
6,285
7.23
1108
6,484
7.46
1132
6,703
7.71
1158
6,946
7.99
1185
7,211
8.29
9,500
1145
7,231
8.32
1165
7,433
8.55
1187
7,655
8.80
1211
7,898
9.08
1236
8,161
9.39
10,000
1203
8,262
9.50
1222
8,468
9.74
1243
8,693
10.00
1265
8,936
10.28
1288
9,199
10.58
10,500
1261
9,381
10.79
1279
9,592
11.03
1299
9,820
11.29
1319
10,065
11.58
1341
10,327
11.88
11,000
1320
10,592
12.18
1337
10,807
12.43
1355
11,038
12.70
1374
11,284
12.98
1394
11,547
13.28
11,500
1378
11,896
13.68
—
—
—
—
—
—
—
—
—
—
—
—
12,000
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
12,500
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
581A300 (25 TONS) (Medium 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
6,500
1005
4,020
4.62
1052
4,390
5.05
1100
4,791
5.51
1148
5,221
6.00
1195
5673
6.52
7,000
1041
4,555
5.24
1084
4,908
5.64
1128
5,294
6.09
1172
5,710
6.57
1217
6153
7.08
7,500
1080
5,168
5.94
1119
5,508
6.33
1160
5,878
6.76
1201
6,279
7.22
1242
6708
7.71
8,000
1122
5,862
6.74
1158
6,190
7.12
1195
6,548
7.53
1233
6,934
7.97
1272
7347
8.45
8,500
1167
6,638
7.63
1200
6,959
8.00
1234
7,305
8.40
1269
7,677
8.83
1304
8076
9.29
9,000
1214
7,499
8.63
1244
7,813
8.99
1275
8,149
9.37
1308
8,511
9.79
1340
8896
10.23
9,500
1262
8,447
9.72
1290
8,754
10.07
1319
9,084
10.45
1349
9,437
10.85
1379
9812
11.28
10,000
1312
9,482
10.91
1338
9,785
11.25
1365
10,110
11.63
1392
10,454
12.02
—
—
—
10,500
1363
10,608
12.20
1387
10,909
12.55
—
—
—
—
—
—
—
—
—
11,000
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
11,500
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
12,000
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
12,500
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
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 ...