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XVIII. AIRFLOW DATA TABLES
AIR-FLOW PERFORMANCE – 6 TON MODELS
1800 [849]
1900 [897]
2000 [944]
2100 [991]
2200 [1038]
2300 [1085]
2400 [1133]
2500 [1180]
2600 [1227]
2700 [1274]
2800 [1321]
Air Flow
CFM [L/s]
Model 6 Ton
Voltage 208/230, 460, 575 — 3 phase
External Static Pressure — Inches of Water [kPa]
0.1 [.02]
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
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]
— — — — — — — — 835 631 880 686 924 740 965 794 1005 847 1043 898 1079 949 1113 999 1146 1048 1177 1096 1206 1144
— — — — — — 808 622 854 681 899 739 941 795 982 851 1021 906 1058 960 1093 1013 1127 1065 1159 1117 1189 1167 1217 1217
— — — — — — 828 673 874 734 918 794 959 853 999 911 1037 968 1074 1025 1108 1080 1141 1135 1172 1189 1201 1242 1228 1293
— — — — 803 663 850 727 894 790 937 853 978 914 1017 974 1055 1034 1090 1093 1124 1151 1156 1208 1186 1264 1214 1319 1241 1373
— — — — 826 718 871 784 915 850 957 914 997 978 1036 1041 1072 1103 1107 1164 1140 1224 1171 1283 1201 1342 1228 1399 1254 1456
— — 802 706 849 775 894 844 937 912 978 979 1017 1045 1055 1110 1091 1174 1125 1238 1157 1300 1187 1362 1216 1423 1242 1482 1267 1541
— — 826 764 872 836 916 907 959 977 999 1047 1038 1115 1075 1183 1110 1249 1143 1315 1174 1380 1204 1444 1231 1507 1257 1569 1282 1630
805 751 852 826 897 900 940 973 981 1046 1021 1118 1059 1188 1095 1258 1129 1327 1162 1395 1192 1462 1221 1529 1248 1594 1273 1658 — —
831 813 877 890 922 967 964 1043 1005 1118 1044 1191 1081 1265 1116 1337 1149 1408 1181 1478 1211 1548 1239 1616 1265 1684 — — — —
858 878 904 958 947 1037 989 1115 1029 1192 1067 1268 1103 1344 1137 1418 1170 1492 1201 1565 1230 1637 1257 1708 1282 1778 — — — —
886 947 931 1029 973 1110 1014 1190 1053 1270 1091 1349 1126 1426 1160 1503 1191 1579 1221 1654 1250 1728 1276 1802 — — — — — —
NOTE: L-Drive left of bold line, M-Drive right of bold line.
NOTES: 1. Factory sheave settings are shown in bold type.
2. Do not set motor sheave below minimum turns open shown.
3. Re-adjustment of sheave required to achieve rated airflow at ARI minimum E.S.P.
4. Drive data shown is for horizontal airflow with dry coil. add component resistance to duct
resistance to determine total E.S.P.
Drive Package
Motor H.P. [W]
Blower Sheave
Motor sheave
Turns Open
RPM
L
M
1.5 [1118.6]
AK66
1VP-50
1.5 [1118.6]
AK66
1VP-44
0 1 2 3 4 5
1119 1072 1019 967 915 859
0 1 2 3 4 5
1267 1215 1163 1113 1064 1015
AIRFLOW CORRECTION FACTORS
6 TONS [21.10 kW]
Actual CFM [L/s]
1800
2000
2200
2400 2600
2800
Total MBH
Sensible MBH
Power KW
[849]
[944]
[1038]
[1133] [1227]
[1321]
0.97 0.98 0.99 1.00 1.01 1.02
0.91 0.94 0.97 1.00 1.02 1.05
0.99 0.99 0.99 1.00 1.00 1.01
[ ] Designates Metric Conversions
CCoommppoonneenntt
Wet Coil
Concentric Diffuser RXRN-FA65 or
FA75 & Transition RXMC-CE05
Concentric Diffuser RXRN-AA61 or
AA71 & Transition RXMC-CE05
Economizer
100% R.A. Damper Open
Horizontal Economiser
100% R.A. Open
Horizontal Economiser
100% O.A. Damper Open
Standard Indoor Airflow-CFM [L/s]
Resistance-Inches Water [Kpa]
1800
[849]
0.031 0.036 0.041 0.047 0.051 0.055
[0.008] [0.009] [0.01] [0.012] [0.013] [0.014]
DNA DNA DNA DNA 0.017 0.02
[0.042] [0.050]
DNA DNA DNA DNA DNA DNA
0.02 0.03 0.04 0.05 0.06 0.07
[0.005] [0.007] [0.01] [0.012] [0.015] [0.017]
0.02 0.02 0.03 0.03 0.04 0.04
[0.005] [0.005] [0.007] [0.007] [0.01] [0.01]
0.07 0.07 0.07 0.08 0.08 0.08
[0.017] [0.017] [0.017] [0.02] [0.02] [0.02]
2000
[944]
2200
[1038]
2400
[1133]
2600
[1227]
2800
[1321]
COMPONENT AIR RESISTANCE, IWC
6 TONS [21.10 kW]
19