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AIR DELIVERY — 559F180-300 UNITS (cont)
559F240 (20 TON)
Airflow
(Cfm)
Standard Belt-Drive Motor
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
6000 702 1.60 1428 796 1.90 1723 884 2.30 2025 965 2.60 2339 1041 3.00 2669
6500 747 2.00 1757 835 2.30 2073 919 2.70 2394 997 3.10 2725 1070 3.40 3069
7000 792 2.40 2138 877 2.80 2476 957 3.20 2816 1031 3.50 3165 1102 3.90 3525
7500 838 2.90 2571 918 3.30 2929 996 3.70 3290 1067 4.10 3658 1135 4.50 4035
8000 885 3.40 3060 962 3.90 3440 1036 4.30 3822 1105 4.70 4209 1170 5.20 4604
8500 932 4.00 3610 1005 4.50 4011 1077 4.90 4414 1143 5.40 4821 1206 5.90 5234
9000 980 4.70 4223 1050 5.20 4647 1119 5.70 5071 1183 6.20 5498 1244 6.60 5930
9500 1028 5.50 4904 1096 6.00 5350 1162 6.50 5796 1224 7.00 6243 1283 7.50 6695
10000 1077 6.30 5655 1141 6.90 6123 1205 7.40 6591 1266 7.90 7059 1323 8.40 7531
559F240 (20 TON) (cont)
Airflow
(Cfm)
Standard Belt-Drive Motor
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
6000 1115 3.40 3018 1186 3.80 3385 1255 4.20 3771 1322 4.70 4175 1389 5.20 4579
6500 1140 3.80 3429 1208 4.30 3805 1274 4.70 4198 1338 5.20 4609 1402 5.70 5020
7000 1169 4.40 3898 1233 4.80 4285 1296 5.20 4687 1358 5.70 5106 1420 6.20 5525
7500 1199 4.90 4422 1262 5.40 4822 1322 5.90 5235 1381 6.30 5662 1440 6.70 6089
8000 1232 5.60 5008 1292 6.10 5422 1350 6.50 5847 1407 7.00 6286 1464 7.50 6725
8500 1266 6.30 5655 1324 6.80 6085 1380 7.30 6524 1435 7.80 6975 1490 8.30 7426
9000 1302 7.10 6369 1359 7.60 6816 1413 8.10 7270 1466 8.70 7735 1519 9.30 8200
9500 1340 8.00 7152 1394 8.50 7616 1447 9.10 8088 1508 9.40 8428 —— —
10000 1378 9.00 8007 1431 9.50 8489 — — — — — — — — —
LEGEND
Bhp — Brake Horsepower Input to Fan
FIOP — Factory-Installed Option
Watts — Input Watts to Motor
NOTES:
1. Boldface indicates field-supplied drive is required. (See Note 3.)
2. indicates additional capability of 460 v motor.
3. Factory-shipped motor drive range is 1238 to 1494 rpm. Other rpms
require a field-supplied drive.
4. Maximum continuous bhp is 8.7 (208/230, 575 v) or 9.5 (460 v)
and maximum continuous watts are 7915 (208/230, 575 v) or
8640 (460 v). Do notadjust motor rpm such that motor maximum bhp
and/or watts is exceeded at the maximum operating cfm.
5. Static pressure losses (i.e., economizer) must be added to external
static pressure before entering Air Delivery table.
6. Interpolation is permissible. Do not extrapolate.
7. Fan performance is based on wet coils, clean filters, and
casing losses. See page 47 for accessory/FIOP static pressure
information.
8. Extensive motor and drive testing on these units ensures that the
full horsepower range of the motor can be utilized with confidence.
Using your fan motors up to the watts or bhp rating shown will not
result in nuisance tripping or premature motor failure. Unit warranty
will not be affected.
9. Minimum allowable cfm is 300 cfm/ton.
10. Use of a field-supplied motor may affect wire sizing. Contact your
local representative for details. For additional information on motor
performance, refer to Evaporator-Fan Motor Performance table on
page 62.
45