Table 4--Dry Coil Air Delivery* Horizontal Discharge
(Deduct 10 percent for 208 Volt Operation)
Unit
030
036
042 t
048 t
080 t
Motor Speed
Low
Med
High
Low
Med
High
Low
Med
High
Low
Med
High
Low
Med
High
230 AND 460 VOLT
External Static Pressure (in. wg)
Watts/CFM
0,1 0.2 0.3 0,4 0.5 0.8 0.7 0.8
Watts 288 285 282 279 274 268 261
Cfm 875 820 802 734 668 582 478
Watts 390 383 378 369 360 350 340
Cfm 1131 1090 1038 978 917 830 721
Watts 528 520 510 495 480 460 450
Cfm 1891 1338 1285 1200 1115 1018 920
Watts 450 435 420 400 380 335 326 311
Cfm 1231 1218 1204 1120 1008 950 863 751
Watts 470 450 445 410 388 359 338 321
Cfm 1302 1264 1205 1163 1081 940 873 783
Watts 660 635 610 575 540 505 485 460
Cfm 1700 1660 1581 1450 1297 1190 1095 999
Watts 478 458 440 411 378 350 327 317
Cfm 1303 1270 1224 1179 1126 1022 911 816
Watts 481 468 450 438 404 370 338 320
Cfm 1310 1280 1241 1181 1110 1022 943 811
Watts 798 678 647 618 578 540 500
Cfm 1736 1688 1618 1510 1421 1309 1187
Watts 801 760 730 688 650 600
Cfm 1898 1841 1757 1682 1564 1429
Watts
Cfm
Watts 870 842 818 782 696 632
Cfm 2000 1903 1799 1718 1625 1446
Watts 890 850 810 790 735 680 580 480
Cfm 1834 1820 1791 1762 1703 1640 1415 1159
Watts 1040 1018 1000 950 890 835 790 650
Cfm 2230 2102 2025 1960 1901 1855 1752 1468
Watts 1073 1038 1001 958 898 840 800 691
Cfm 2230 2202 2160 2122 2052 1926 1791 1588
0.9
460
1060
570
1333
828
1385
422
950
58O
1121
575
1202
t 480-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.
Table 5--Wet Coil Pressure Drop Table 6--Filter Pressure Drop (In. wg)
UNIT SIZE UNiT FILTER CFM
5OZH SiZE SIZE
50ZH (IN.) 500 600 700 800 900 1000 1100 1200
030 080-042 24x24 0.06 0.07 0.08 0.08 0.09 0.09 0.09 0.10
048, 060 24 x 30
038
042
048
060
AIRFLOW
(CFM)
900
1000
1200
1000
1200
1400
1600
1000
1200
1400
1600
1400
1600
1800
1700
1800
2100
2300
PRESSURE DROP
(IN. WG)
0.08
0.08
0.08
0.07
0.09
0.11
0.12
0.04
0.08
0.08
0.09
0.07
0.08
0.09
0.07
0.08
0.09
0.10
18
1300 1400
0.11 0.12
0.08 0.09
UNiT FILTER CFM
SIZE SiZE
50ZH (IN.) 1500 1600 1700 1800 1900 2000 2100 2200 2300
030-042 24 x 24 0.14 0.15
048,060 24 x 30 0.10 0.11 0.12 0.13 0.14 0.15 0.18 0.17 0.18
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 1o 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
lk_reign matter from the pan. Flush the pan and drain tube with
clear water. Do not splash water on the insulation, motor, wiring,
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