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FAN RPM AT MOTOR PULLEY SETTINGS*
UNIT
MOTOR PULLEY TURNS OPEN
0
1
⁄
2
11
1
⁄
2
22
1
⁄
2
33
1
⁄
2
44
1
⁄
2
55
1
⁄
2
6
558D036† 1000 976 952 928 904 880 856 832 808 784 760 — —
558D048† 1185 1150 1115 1080 1045 1010 975 940 905 870 835 — —
558D060† 1300 1260 1220 1180 1140 1100 1060 1020 980 940 900 — —
558D072** 1460 1420 1380 1345 1305 1265 1225 1185 1150 1110 1070 — —
558D090** 840 815 790 765 740 715 690 665 635 615 590 — —
558D090†† 935 910 885 860 835 810 785 760 735 710 685 — —
558D102** 935 910 885 860 835 810 785 760 735 710 685 — —
558D120** 935 910 885 860 835 810 785 760 735 710 685 — —
558D120† 1085 1060 1035 1010 985 960 935 910 885 860 835 — —
558D150** 1080 1060 1035 1015 990 970 950 925 905 880 860 — —
558D150† 1260 1220 1185 1155 1130 1100 1075 1045 1015 990 960 930 900
559F180,
208/230,
460 V**
1559 1524 1491 1458 1425 1392 1359 1326 1293 1260 1227 — —
559F180,
575 V**
1462 1436 1410 1384 1358 1332 1305 1279 1253 1227 1201 — —
559F216** 1251 1234 1217 1200 1183 1166 1149 1132 1115 1098 1081 1064 1047
559F240** 1494 1473 1451 1430 1409 1387 1366 1345 1323 1302 1281 1259 1238
559F300** 1536 1515 1494 1472 1451 1430 1408 1387 1366 1344 1323
*Approximate fan rpm shown.
†Indicates alternate motor and drive package.
**Indicates standard motor and drive package.
††Indicates alternate drive package only.
Do not run this fan at less than 1 full turn open, as it will exceed the maximum allowable rpm of 1550.
OUTDOOR SOUND DATA (Total Unit)
UNIT
SOUND RATING
(Bels)
A — WEIGHTED
(db)
SOUND POWER (db)
Octave Bands
63 125 250 500 1000 2000 4000 8000
558D036-060 8.2 80.5 56.8 75.8 72.4 72.9 74.8 75.4 71.3 69.1
558D072 8.4 82.4 56.0 69.8 72.9 75.9 78.3 76.5 72.6 67.9
558D090,102 8.6 86.4 83.2 87.4 83.5 82.8 83.0 77.7 71.8 67.0
558D120 8.8 87.6 97.6 90.4 85.7 84.8 83.9 77.5 71.3 65.8
558D150 8.8 86.4 83.7 87.2 83.4 82.8 83.0 77.7 71.8 67.0
559F180 8.8 87.3 87.1 89.9 86.4 84.0 82.7 79.0 73.9 68.6
559F216 9.0 89.5 95.7 88.9 87.2 85.2 81.9 79.5 72.7 65.0
559F240 9.5 94.1 98.7 92.3 93.8 90.9 89.6 85.9 80.3 74.3
559F300 9.5 94.1 98.7 92.3 93.8 90.9 89.6 85.9 80.3 74.3
Bels — Sound Levels (1 bel = 10 decibels)
db — Decibels
ELECTRIC HEAT MULTIPLICATION FACTORS
HEATER
VOLTAGE
ACTUAL HEATER VOLTAGE
200 208 230 240 280 440 460 480 550 575 600
240 0.694 0.751 0.918 1.000 ———————
480 ————0.626 0.840 0.918 1.000 — — —
575 ————————0.915 1.000 1.089
NOTE: The following equation converts kW of heat energy to Btuh:
kW × 3.412 = Btuh.
EXAMPLE: 32.0 kW (at 240 v) heater on 208 v = 32.0 (.751 mult factor)
= 24.0 kW capacity at 208 v.
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