Lennox LCH074 User Manual

Page 36
BLOWER DATA - LCH BELT DRIVE - 5 TON - HIGH EFFICIENCY
BLOWER TABLE INCLUDES RESISTANCE FOR BASE UNIT ONLY WITH DRY INDOOR COIL AND AIR FILTERS IN PLACE.
FOR ALL UNITS ADD:
1 - Any factory installed options air resistance (heat section, economizer, etc.).
2 - Any eld installed accessories air resistance (duct resistance, diffuser, etc.).
See Page 45 for blower motors and drives and wet coil and options/accessory air resistance data.
DOWNFLOW
Air
Volume
(cfm)
External Static (in.w.g.)
0.10 0.20 0.30 0.40 0.50 0.60 0.70 0.80 0.9 1.0
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
1100 512 0.15 571 0.19 630 0.23 690 0.26 770 0.26 854 0.26 922 0.27 970 0.30 1006 0.35 1045 0.39
1200 535 0.18 593 0.22 651 0.26 710 0.29 788 0.30 868 0.30 933 0.31 978 0.34 1013 0.38 1053 0.42
1300 559 0.22 616 0.26 674 0.29 732 0.32 807 0.34 883 0.34 944 0.35 987 0.38 1022 0.42 1062 0.46
1400 584 0.26 641 0.29 698 0.33 755 0.36 827 0.37 899 0.38 956 0.40 997 0.43 1033 0.47 1072 0.51
1500 615 0.29 671 0.33 726 0.36 782 0.39 850 0.41 917 0.42 970 0.44 1009 0.47 1045 0.52 1085 0.56
1600 665 0.30 716 0.34 768 0.38 819 0.41 879 0.44 937 0.46 985 0.49 1022 0.52 1059 0.57 1098 0.61
1700 723 0.31 768 0.35 814 0.39 860 0.43 910 0.47 959 0.50 1001 0.54 1037 0.58 1074 0.62 1113 0.66
1800 779 0.32 818 0.37 857 0.41 897 0.46 939 0.50 980 0.55 1018 0.59 1054 0.64 1091 0.68 1129 0.72
1900 826 0.36 859 0.41 894 0.45 928 0.50 964 0.56 1000 0.61 1036 0.66 1072 0.70 1109 0.75 1146 0.79
2000 857 0.42 889 0.47 920 0.52 952 0.57 986 0.62 1020 0.68 1055 0.73 1091 0.77 1128 0.82 1164 0.86
2100 878 0.49 909 0.54 940 0.59 973 0.64 1006 0.70 1041 0.75 1076 0.80 1112 0.85 1148 0.89 1185 0.93
2200 897 0.55 929 0.61 961 0.66 994 0.72 1028 0.78 1063 0.83 1099 0.89 1134 0.93 1170 0.97 1206 1.01
2300 918 0.62 950 0.68 983 0.74 1017 0.80 1052 0.86 1087 0.92 1122 0.97 1157 1.02 1193 1.06 1228 1.09
2400 941 0.70 974 0.77 1008 0.83 1042 0.90 1077 0.96 1111 1.01 1146 1.06 1181 1.11 1216 1.15 1250 1.19
Air
Volume
(cfm)
External Static (in.w.g.)
1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 2.0
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
1100 1089 0.43 1134 0.46 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
1200 1095 0.46
1139 0.50 1186 0.53 1230 0.57 1266 0.60 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
1300 1104 0.50 1146 0.54 1192 0.57 1234 0.60 1269 0.64 1301 0.68 1334 0.71 1367 0.75 - - - - - - - - - - - -
1400 1114 0.55 1155 0.58 1199 0.61 1240 0.65 1275 0.68 1305 0.72 1338 0.76 1372 0.80 1406 0.83 1440 0.87
1500 1125 0.60 1165 0.63 1208 0.66 1248 0.69 1281 0.73 1311 0.77 1344 0.81 1378 0.85 1412 0.89 1446 0.92
1600 1138 0.65 1177 0.68 1218 0.71 1257 0.75 1290 0.79 1319 0.83 1352 0.87 1385 0.91 1418 0.95 1452 0.98
1700 1152 0.70 1190 0.74 1231 0.77 1268 0.80 1299 0.84 1328 0.89 1360 0.93 1393 0.97 1426 1.01 1459 1.05
1800 1167 0.76 1205 0.80 1244 0.83 1280 0.87 1310 0.91 1338 0.95 1370 0.99 1402 1.04 1434 1.08 1466 1.11
1900 1183 0.82 1221 0.86 1260 0.90 1294 0.94 1323 0.98 1349 1.02 1380 1.07 1412 1.11 1443 1.15 1475 1.19
2000 1201 0.89 1239 0.93 1276 0.97 1310 1.01 1336 1.06 1362 1.10 1392 1.15 1423 1.19 1454 1.23 1485 1.27
2100 1221 0.97 1258 1.01 1294 1.05 1325 1.09 1351 1.14 1376 1.19 1406 1.23 1436 1.27 1466 1.31 1497 1.35
2200 1242 1.05 1277 1.09 1311 1.14 1341 1.18 1365 1.23 1390 1.28 1420 1.32 1450 1.36 1480 1.41 1510 1.45
2300 1262 1.14 1295 1.19 1327 1.24 1355 1.29 1380 1.33 1406 1.37 1435 1.42 1465 1.46 1494 1.50 1524 1.54
2400 1282 1.24 1313 1.30 1343 1.36 1371 1.40 1396 1.44 1423 1.48 1452 1.52 1481 1.56 1510 1.60 1540 1.64

Lennox LCH074 Specifications

General

Brand	Lennox
Model	LCH074
Category	Accessories
Language	English