Lennox ALLIED Commercial TCA180S2B Standard Manual page 6

BLOWER DATA
BLOWER TABLE INCLUDES RESISTANCE FOR BASE UNIT WITH WET INDOOR COIL & AIR FILTERS IN PLACE.
FOR ALL UNITS ADD:
1 − Any factory installed options air resistance (electric heat, economizer, etc.). See table below
2 − Any field installed accessories air resistance (duct resistance, diffuser, etc.). See page 17
Then determine from table the blower motor output and drive required.
0.30 to 1.30 in. w.g.
Air
Volume
cfm
0.30 0.40
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
Low Static − 5 HP, Drive Kit 2
6400 648 1.99 688 2.22
7000 675 2.35 715 2.63
7500
700 2.75 738 3.03
8000 725 3.20 763 3.50
8500 750 3.65 788 3.98
9000 780 4.20 815 4.53
9600 811 4.87 845 5.22
1.40 to 2.50 in. w.g.
Air
Volume
cfm
1.40 1.50
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
Standard Static
6400 1008 4.53 1035 4.75 1060 4.98 1085 5.22 1110 5.45 1135 5.68 1157 5.91 1180 6.15 1202 6.40 1225 6.65 1246 6.88 1268 7.11
7000 1030 5.18 1055 5.40 1080 5.68 1105 5.95 1130 6.20 1155 6.45 1178 6.70 1200 6.95 1220 7.20 1240 7.45 1263 7.73 1285 8.00
7500 1048 5.78 1075 6.05 1100 6.33 1125 6.60 1148 6.88 1170 7.15 1193 7.40 1215 7.65 1238 7.95 1260 8.25 1280 8.50 1300 8.75
8000 1065 6.40 1090 6.70 1115 6.98 1140 7.25 1163 7.55 1185 7.85 1208 8.13 1230 8.40 1253 8.70 1275 9.00 1295 9.30 1315 9.60
8500 1085 7.10 1110 7.40 1135 7.73 1160 8.05 1183 8.35 1205 8.65 1228 8.95 1250 9.25 1270 9.55 1290 9.85 1310 10.15 1330 10.45
9000 1105 7.83 1130 8.15 1153 8.45 1175 8.75 1198 9.08 1220 9.40 1243 9.75 1265 10.10 1288 10.45 1310 10.80 1330 11.10 1350 11.40
9600 1129 8.77 1154 9.13 1177 9.46 1199 9.78 1222 10.14 1244 10.50 1267 10.87 1289 11.23
NOTE − italics − field furnished drive.
AIR RESISTANCE (in. w.g.) − Factory Installed Options
Air Volume − cfm
6400
7000
7500
8000
8500
9000
9600
External Static (in. w.g.) Covered By Drive At Nominal Air
With Economizer, Standard Filters And Wet Indoor Coil
0.50 0.60 0.70
727 2.46 764 2.69 801 2.92
755 2.90 790 3.15 825 3.40
775 3.30 810 3.58 845 3.85
800 3.80 833 4.08 865 4.35
825 4.30 858 4.60 890 4.90
850 4.85 880 5.18 910 5.50
879 5.57 910 5.94 941 6.31
External Static (in. w.g.) Covered By Drive At Nominal Air
With Economizer, Standard Filters And Wet Indoor Coil
1.60 1.70 1.80
High Static − 10 HP, Drive Kit 6
Electric Heat
.01
.01
.01
.02
.02
.04
.05
0.80 0.90
Standard Static − 7.5 HP, Drive Kit 7
834 3.15 866 3.39
858 3.68 890 3.95
878 4.15 910 4.45
898 4.65 930 4.95
920 5.23 950 5.55
940 5.83 970 6.15
970 6.67 999 7.02 1027 7.38 1054 7.74 1079 8.08 1104 8.41
1.90 2.00 2.10
Economizer
.02
.04
.06
.09
.11
.14
.16
Page 6
1.00 1.10 1.20
896 3.62 926 3.85 954 4.08
920 4.20 950 4.45 978 4.70 1005 4.95
938 4.70 965 4.95 993 5.23 1020 5.50
958 5.23 985 5.50 1013 5.80 1040 6.10
978 5.85 1005 6.15 1033 6.48 1060 6.80
998 6.48 1025 6.80 1053 7.15 1080 7.50
2.20 2.30
− − − − − −
Horizontal MERV 11
Roof Curb
.13
.15
.17
.19
.21
.24
.26
20 TON
TCA240
1.30
981 4.30
TCA240
2.40 2.50
− − − − − −
Filter
.02
.03
.03
.04
.04
.04
.05