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AIR-FLOW PERFORMANCE – 8.5 TON MODELS
56
AIRFLOW PERFORMANCE—RKKB/RKMB-
AIRFLOW PERFORMANCE—8.5 TON [29.9 kW]
1060 2350 10893400 [1605]
— — — —
681 1244 710 1306 739 1368 769 1430 798 1491 827 1553 856 1615 886 1677 913 1923 943 2008 972 2094 1001 2179 1031 2264
3500 [1652]
— —
673 1270 690 1304 719 1366 748 1428 777 1490 807 1552 836 1613 865 1675 894 1737 920 1987 950 2072 979 2158 1009 2243
2435
1038 2328
3600 [1699]
— —
686 1352 698 1364 728 1426 757 1488 786 1550 815 1612 844 1674 874 1735 903 1797 928 2051 957 2136 986 2222 1016 2307 1045 2393
3700 [1746] 672 1361 700 1435 727 1510 755 1584 782 1659 810 1733
RPM W RPM W RPM W RPM W RPM W RPM W RPM W RPM W RPM W RPM W RPM W RPM W RPM W RPM W RPM W
2700 [1274]
— — — — — — — — — —
708 1009 737 1070 766 1132 796 1194 825 1256 854 1318 883 1380 921 1645 950 1730 980 1816
2800 [1321]
— — — — — — — — — —
717 1069 748 1131 775 1192 804 1254 834 1316 863 1378 892 1440 928 1709 958 1794 987 1880
2900 [1369]
— — — — — — — — — —
725 1129 755 1191 784 1253 813 1315 842 1376 872 1438 906 1688 936 1773 965 1858 994 1944
3000 [1416]
— — — — — — — —
705 1127 734 1189 763 1251 792 1313 822 1375 851 1437 880 1498 913 1752 943 1837 972 1923 1002 2008
3100 [1463]
— — — — — — — —
713 1187 743 1249 772 1311 801 1373 830 1435 860 1497 889 1559 921 1816 950 1961 979 987 1009 2072
3200 [1510]
— — — — — —
693 1185 722 1247 761 1309 781 1371 810 1433 839 1495 868 1557 898 1619 928 1880 937 1965 987 2051 1018 2136
3300 [1557]
— — — — — —
701 1246 731 1307 760 1369 789 1431 818 1493 848 1555 877 1617 906 1856 935 1944 968 2029 994 2115 1023 2200
3800 [1793] 686 1443 713 1518 741 1592 768 1667 796 1741 823 1816 851 1890 878 1965 940 2003 960 2075 981 2189 1001 2302 1016 2416 1043 2529 1062 2643
837 1808 865 1882 933 1896 953 1956 973 2070 993 2183 1002 2297 1030 2410 1054 2524
4000 [1888] 713 1609 740 1683 768 1758 795 1832 823 1907 850 1981 878 2056 935 2085 955 2199 975 2312 996 2426 1016 2539 1043 2653 1070 2767 1077 2880
1119 2521
1067 2414 1097 2499 1126 2585
1071 2478 1104 2563 1133 2649
RPM W RPM W RPM W
1009 1901 1038 1966 1068 2072
1016 1965 1046 2050 1075 2136
1024 2029 1053 2115 1082 2200
1031 2093 1060 2179 1090 2264
1038 2157 1068 2243 1097 2328
1045 2222 1075 2307 1104 2392
1053 2286 1082 2371 1111 2456
1082 2756 1119 2870 1147 2983
1075 2637 1111 2751 1140 2864
1097 2994 1135 3107 — —
Capacity 8.5 Ton [29.9 kW]
3900 [1841] 699 1526 727 1601 754 1675 782 1750 809 1824 837 1899 864 1973 927 2015 948 2080 968 2194 988 2307 1008 2421 1029 2534 1057 2648 1069 2761 1090 2875 1127 2988 — —
4100 [1935] 726 1692 754 1766 781 1841 809 1915 836 1990 864 2064 922 2091 942 2204 963 2318 983 2431 1003 2545 1024 2658 1056 2772 1084 2885 1084 2999 1105 3112 1144 3226 — —
Air
Flow
CFM [L/s]
1148 2606 — —
— — — —
— — — —
RPM W RPM W
1097 2157 1127 2243
1104 2221 1134 2307
1112 2285 1141 2371
1119 2350 1148 2435
1126 2414 — —
1134 2478 — —
1141 2542 — —
— — — —
— — — —
— — — —
— — — —
— — — —
0.1 [.02] 0.2 [.05] 0.3 [.07] 0.4 [.10] 0.5 [.12] 0.6 [.15] 0.7 [.17] 0.8 [.20] 0.9 [.22] 1.0 [.25] 1.1 [.27] 1.2 [.30] 1.3 [.32] 1.4 [.35] 1.5 [.37] 1.6 [.40] 1.7 [.42] 1.8 [.45] 1.9 [.47] 2.0 [.50]
External Static Pressure—Inches of Water [kPa]
Drive Package L M
Motor H.P. [W] 2.0 [1491.4] 3.0 [2237.1]
Blower Sheave BK90 BK65
Motor Sheave 1VP-44 1VP-44
Turns Open 1 2 3 4 5 6 1 2 3 4 5 6
RPM 860 824 791 757 723 690 1148 1098 1049 999 949 899
NOTES: 1. Factory sheave settings are shown in bold print.
2. Re-adjustment of sheave required to achieve rated airflow at ARI minimum E.S.P.
3. Do not operate above blower RPM shown as motor overloading will occur.
4. Do not set motor sheave below one turn open.
NOTE: L-Drive left of bold line, M-Drive right of bold line.
AIRFLOW CORRECTION FACTORS
8.5 TON [29.9 kW]
0.98 0.99TOTAL MBH 0.96
1.00
0.97
0.97
3200
[1510]
1.00 1.01
1.010.99
1.03
3600
[1699]
POWER kW 0.99 1.000.99
1.00
3400
[1605]
1.03
1.02
1.07
4000
[1888]
1.04
1.03
0.94 1.09
4200
[1982]
SENSIBLE MBH
1.02
1.01
1.050.88
3800
[1793]
0.91
3000
[1416]
ACTUAL—CFM
[L/s]
2600
[1227]
2800
[1321]
COMPONENT AIR RESISTANCE, IWC
8.5 TON [29.9 kW]
Component
Standard Indoor Airflow—CFM [L/s]
Concentric Diffuser RXRN-FA65 or
FA75 & Transition RXMC-CD04
0.17
[0.042]
0.20
[0.050]
0.25
[0.062]
0.31
[0.077]
0.37
[0.092]
DNA DNA
Concentric Diffuser RXRN-AA61 or
AA71 & Transition RXMC-CE05
DNA
2600
[1227]
2800
[1321]
3000
[1416]
3200
[1510]
3400
[1604]
3600
[1699]
3800
[1793]
DNA DNA DNA DNA
Resistance—Inches Water [kPa]
0.17
[0.042]
0.18
[0.045]
Horizontal Economizer
100% O.A. Damper Open
0.08
[0.020]
0.08
[0.020]
0.10
[0.024]
0.11
[0.027]
0.12
[0.030]
0.13
[0.032]
Wet Coil
0.051
[0.013]
0.055
[0.014]
0.060
[0.015]
0.065
[0.016]
0.071
[0.018]
0.076
[0.019]
0.082
[0.020]
0.15
[0.036]
Economizer
100% R.A. Damper Open
0.06
[0.015]
0.07
[0.017]
0.08
[0.020]
0.09
[0.022]
0.10
[0.025]
0.11
[0.027]
0.12
[0.030]
Horizontal Economizer
100% R.A. Damper Open
0.04
[0.009]
0.04
[0.010]
0.05
[0.011]
0.05
[0.012]
0.06
[0.014]
0.06
[0.015]
0.07
[0.017]
DNA
4000
[1888]
0.21
[0.052]
0.087
[0.022]
0.16
[0.040]
0.13
[0.032]
0.08
[0.020]
DNA
4200
[1982]
0.24
[0.060]
0.093
[0.023]
0.18
[0.044]
0.14
[0.035]
0.09
[0.021]
NOTE: Add component resistance to duct resistance to determine total external static pressure.
DNA = Data not Available.
NOTES: 1. Multiply correction factor times gross performance data.
2. Resulting sensible capacity cannot exceed total capacity.
[ ] Designates Metric Conversions
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