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mild detergent-and-water-solution. Rinse coils with clear water,
using a garden hose. Be careful not to splash water on motors,
insulation, wiring or air filter(s). For best results, spray outdoor-
coil fins from inside to outside the unit. On units with an outer and
inner outdoor coil, be sure to clean between the coils. Be sure to
flush all dirt and debris from the unit base.
Inspect the drain pan and condensate drain line when inspecting
the coils. Clean the drain pan and condensate drain by removing all
foreign matter from the pan. Flush the pan and drain tube with
clear water. Do not splash water on the insulation, motor, wiring,
or air filter(s). If the drain tube is restricted, clear it with a
‘‘plumbers snake’’ or similar probe device. Ensure that the
auxiliary drain port above the drain tube is also clear.
Step 5—Outdoor Fan
Keep the Outdoor fan free from all obstructions to ensure
proper cooling operation. Never place articles on top of the
unit. Damage to unit may result.
1. Shut off unit power supply and install lockout tag.
2. Remove outdoor-fan assembly (grille, motor, motor cover,
and fan) by removing screws and flipping assembly onto unit
top cover.
3. Loosen fan hub setscrews.
4. Adjust fan height as shown in Fig. 21 or 22.
5. Tighten setscrews.
6. Replace outdoor-fan assembly.
Table 4—Dry Coil Air Delivery* Horizontal Discharge
(Deduct 10 percent for 208 Volt Operation)
230 AND 460 VOLT
Unit Motor Speed Watts/CFM
External Static Pressure (in. wg)
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9
024
Low
Watts 288 285 282 279 274 268 261 - -
Cfm 875 820 802 734 668 582 478 - -
Med
Watts 390 383 378 369 360 350 340 - -
Cfm 1131 1090 1038 978 917 830 721 - -
High
Watts 528 520 510 495 480 460 450 - -
Cfm 1391 1338 1285 1200 1115 1018 920 - -
030
Low
Watts 288 285 282 279 274 268 261 - -
Cfm 875 820 802 734 668 582 478 - -
Med
Watts 390 383 378 369 360 350 340 - -
Cfm 1131 1090 1038 978 917 830 721 - -
High
Watts 528 520 510 495 480 460 450 - -
Cfm 1891 1338 1285 1200 1115 1018 920 - -
036
Low
Watts 450 435 420 400 380 335 326 311 -
Cfm 1231 1218 1204 1120 1008 950 863 751 -
Med
Watts 470 450 445 410 388 359 338 321 -
Cfm 1302 1264 1205 1163 1081 940 873 783 -
High
Watts 660 635 610 575 540 505 485 460 -
Cfm 1700 1660 1581 1450 1297 1190 1095 999 -
042 †
Low
Watts 478 458 440 411 378 350 327 317 -
Cfm 1303 1270 1224 1179 1126 1022 911 816 -
Med
Watts 481 468 450 438 404 370 338 320 -
Cfm 1310 1280 1241 1181 1110 1022 943 811 -
High
Watts - 798 678 647 618 578 540 500 460
Cfm - 1736 1688 1618 1510 1421 1309 1187 1060
048 †
Low
Watts - - 801 760 730 688 650 600 570
Cfm - - 1898 1841 1757 1682 1564 1429 1333
Med
Watts ---------
Cfm ---------
High
Watts - - 870 842 818 782 696 632 628
Cfm - - 2000 1903 1799 1718 1625 1446 1365
060 †
Low
Watts 890 850 810 790 735 680 580 480 422
Cfm 1834 1820 1791 1762 1703 1640 1415 1159 950
Med
Watts 1040 1018 1000 950 890 835 790 650 580
Cfm 2230 2102 2025 1960 1901 1855 1752 1468 1121
High
Watts 1073 1038 1001 958 896 840 800 691 575
Cfm 2230 2202 2160 2122 2052 1926 1791 1588 1202
† 460-v motors are 2-speed.
Air delivery values are based on operating voltage of 230-v. or 460-v., dry coil, without filter or electric heater. Deduct wet coil, filter, and electric heater pressure drops
to obtain external static pressure availabe for ducting.
Do not operate the unit at a cooling airflow that is less than 350 cfm for each 12,000 Btuh of rated cooling capacity. Evaporator coil frosting may occur at airflows below
this point.
Dashes indicate portions of the table that are beyond the blower motor capacity or are not recommended.
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