Lennox KGA Series Service Literature page 9

BLOWER DATA
150 BELT DRIVE BLOWER − BASE UNIT
BLOWER TABLE INCLUDES RESISTANCE FOR BASE UNIT ONLY (NO HEAT SECTION) WITH DRY INDOOR COIL AND AIR
FILTERS IN PLACE. FOR ALL UNITS ADD:
1 − Wet indoor coil air resistance of selected unit.
2 − Any factory installed options air resistance (heat section, economizer, etc.)
3 − Any field installed accessories air resistance (duct resistance, diffuser, etc.)
Then determine from blower table blower motor output required.
See page 10 for blower motors and drives.
See page 10 for wet coil and option/accessory air resistance data.
MAXIMUM STATIC PRESSURE WITH GAS HEAT - 2.0 in. w.g.
Total
Air
0.2 0.4
Volume
cfm
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
3750 689 0.68 731 0.97 775 1.27 820 1.56 865 1.81 911 2.02 957 2.19 1004 2.35 1051 2.53 1100 2.74 1151 2.99 1204 3.29 1258 3.61
4000 706 0.92 748 1.22 792 1.51 836 1.78 881 2.02 926 2.22 972 2.39 1018 2.57 1065 2.76 1113 2.98 1163 3.25 1217 3.55 1271 3.87
4250 725 1.18 766 1.47 810 1.75 854 2.02 899 2.25 943 2.44 988 2.61 1033 2.81 1079 3.01 1127 3.25 1178 3.52 1230 3.82 1284 4.14
4500 744 1.45 786 1.73 829 2.01 873 2.27 917 2.49 961 2.67 1005 2.87 1050 3.07 1096 3.29 1143 3.53 1193 3.81 1245 4.11 1298 4.43
4750 764 1.73 806 2.01 849 2.28 893 2.53 936 2.74 980 2.94 1023 3.15 1068 3.37 1113 3.60 1160 3.84 1210 4.12 1261 4.42 1314 4.74
5000 785 2.02 827 2.30 870 2.57 914 2.81 957 3.02 1000 3.23 1043 3.46 1087 3.69 1131 3.92 1178 4.17 1227 4.44 1278 4.74 1330 5.05
5250 807 2.33 850 2.61 893 2.87 937 3.11 979 3.33 1021 3.55 1064 3.80 1107 4.03 1151 4.27 1197 4.51 1245 4.78 1295 5.08 1347 5.38
5500 831 2.66 874 2.94 917 3.2 960 3.43 1002 3.67 1043 3.91 1085 4.16 1127 4.39 1171 4.63 1216 4.87 1264 5.14 1313 5.42 1364 5.72
5750 856 3.00 899 3.29 943 3.55 985 3.79 1026 4.04 1066 4.30 1107 4.55 1149 4.78 1192 5.00 1237 5.24 1284 5.50 - - - - - - - - - - - -
6000 883 3.38 927 3.66 970 3.93 1010 4.19 1050 4.46 1089 4.72 1129 4.95 1171 5.17 1213 5.40 1257 5.63 - - - - - - - - - - - - - - - - - -
6250 912 3.78 956 4.07 997 4.35 1036 4.63 1074 4.90 1113 5.15 1152 5.37 1193 5.58 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Total Static Pressure − in. w.g.
0.6 0.8 1.0 1.2 1.4 1.6
Page 9
1.8 2.0 2.2 2.4 2.6