13
AIRFLOW PERFORMANCE—RRKA- SERIES
INDOOR AIRFLOW PERFORMANCE—208 VOLTS
Nominal
Cooling
Capacity
Tons [kW]
Motor Speed
from
Factory
Heating
Input
BTU/HR [kW]
Blower Size/
Motor HP [W] &
# of Speeds
Motor
Speed
External Static Pressure—Inches W.C. [kPa]
CFM [L/s] Air Delivery/RPM/Watts—208 Volts
Side Discharge—Wet Coil
Cool 0.1 [.02] 0.2 [.05] 0.3 [.07] 0.4 [.10] 0.5 [.12] 0.6 [.15] 0.7 [.17]Heat
RPM 734 810
3.0 [10.55] LowMed
886
Med
CFM 1222 [577] 1197 [565] 1179 [556] 1162 [548] 1137 [537] 1097 [518] 1033 [488]
923
RPM 765 810 855 890 920 960 995
959
Watts 423 415 407 397 386 370 351
988
RPM 895 930 965 985 1005 1025 1045
1016
Watts 538 514 493 473 454 434 412
Watts 476 468 450 427 403 380 363
Med
CFM 1674 [790] 1620 [765] 1566 [739] 1511 [713] 1451 [685] 1384 [653] 1305 [616]
RPM
3.5 [12.31] LowHigh
997 1019
High
CFM 1514 [715] 1461 [670] 1415 [668] 1370 [647] 1322 [624] 1266 [597] 1197 [565]
1040 1058 1076 1088 1100
4.0 [14.07] Low
High
See
Note
Below
All
Inputs
60,000 [17.58]
80,000 [23.45]
100,000 [29.31]
10 x 9
3/4 HP
3 Speed Motor
Low
CFM 1204 [568] 1202 [567] 1191 [562] 1171 [553] 1143 [539] 1107 [522] 1065 [503]
Watts 625 596 567 539 512 484 455
RPM 1085 1094 1102 1110 1118 1126 1134
Watts
699 663 632 604 576 548 517
High
CFM
1843 [870] 1763 [832]
1693 [799] 1627 [768] 1560 [736] 1485 [701] 1398 [660]
RPM 674 707 793 841 896 938 977
Watts 501 489 471 463 446 427 406
Med
CFM 1741 [821] 1721 [811] 1693 [798] 1645 [775] 1583 [746] 1521 [717] 1437 [677]
RPM 891 943 978 1004 1029 1047 1070
5.0 [17.59] LowHigh 100,000 [29.31]
10 x 9
3/4 HP
3 Speed Motor
Low
CFM 1187 [560] 1174 [553] 1161 [547] 1148 [541] 1135 [535] 1105 [521] 1065 [502]
Watts 743 709 674 640 602 566 531
RPM 1036 1050 1064 1083 1092 1102 1116
Watts 831 801 754 716 682 640 605
High
CFM 2062 [972] 1988 [937] 1926 [908] 1832 [864] 1773 [836] 1684 [794] 1578 [744]
10 x 9
1/2 HP
3 Speed Motor
All
Inputs
40,000 [11.72]
60,000 [17.58]
80,000 [23.45]
100,000 [29.31]
NOTE: On 4 ton models, switch to medium speed for cooling if external static pressure is less than 0.4" W.C. at 230 volts or less than 0.3" W.C. at 208 volts.
WARNING: Observe airflow operating limits if operating in area of airflow table shown in bold.
DOWN DISCHARGE PRESSURE DROP (ADD TO EXTERNAL STATIC PRESSURE)
Pressure Drop—Inches W.C. [kPa] .00 .01 [.002] .02 [.005] .03 [.007] .05 [.012] .07 [.017] .08 [.019] .09 [.022]
Nominal Cooling Capacity Tons [kW] 1.5 [5.28] 2.0 [7.03] 2.5 [8.79] – 4.0 [14.07] 5.0 [17.59]
Minimum Filter Size—Inches [mm] 16 x 20 x 1 [406 x 508 x 25] 20 x 20 x 1 [508 x 508 x 25] 24 x 24 x 1 [610 x 610 x 25] 24 x 30 x 1 [610 x 762 x 1]
CFM [L/s] 600 [283] 800 [378] 1000 [472] 1200 [566] 1400 [661] 1800 [850]1600 [755] 2000 [944]
MINIMUM RECOMMENDED FILTER SIZES
[ ] Designates Metric Conversions
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