Page 6
BLOWER DATA
20 TON
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.
TCA240
Air
Volume
cfm
External Static (in. w.g.) Covered By Drive At Nominal Air
With Economizer, Standard Filters And Wet Indoor Coil
0.30
0.40
0.50
0.60
0.70
0.80
0.90
1.00
1.10
1.20
1.30
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
Standard Static
−
7.5 HP, Drive Kit 7
6400
648
1.99
688
2.22
727
2.46
764
2.69
801
2.92
834
3.15
866
3.39
896
3.62
926
3.85
954
4.08
981
4.30
7000
675
2.35
715
2.63
755
2.90
790
3.15
825
3.40
858
3.68
890
3.95
920
4.20
950
4.45
978
4.70 1005 4.95
7500
700
2.75
738
3.03
775
3.30
810
3.58
845
3.85
878
4.15
910
4.45
938
4.70
965
4.95
993
5.23 1020 5.50
8000
725
3.20
763
3.50
800
3.80
833
4.08
865
4.35
898
4.65
930
4.95
958
5.23
985
5.50 1013 5.80 1040 6.10
8500
750
3.65
788
3.98
825
4.30
858
4.60
890
4.90
920
5.23
950
5.55
978
5.85 1005 6.15 1033 6.48 1060 6.80
9000
780
4.20
815
4.53
850
4.85
880
5.18
910
5.50
940
5.83
970
6.15
998
6.48 1025 6.80 1053 7.15 1080 7.50
9600
811
4.87
845
5.22
879
5.57
910
5.94
941
6.31
970
6.67
999
7.02 1027 7.38 1054 7.74 1079 8.08
1104 8.41
1.40 to 2.50 in. w.g.
TCA240
Air
Volume
cfm
External Static (in. w.g.) Covered By Drive At Nominal Air
With Economizer, Standard Filters And Wet Indoor Coil
1.40
1.50
1.60
1.70
1.80
1.90
2.00
2.10
2.20
2.30
2.40
2.50
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
High Static
−
10 HP, Drive Kit 6
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
Electric Heat
Economizer
Horizontal
Roof Curb
MERV 11
Filter
6400
.01
.02
.13
.02
7000
.01
.04
.15
.03
7500
.01
.06
.17
.03
8000
.02
.09
.19
.04
8500
.02
.11
.21
.04
9000
.04
.14
.24
.04
9600
.05
.16
.26
.05
