6021980-UIM-A-1120
54 Johnson Controls Ducted Systems
Table 20: Airflow performance - bottom duct application
ZT078 (6.5 Ton) bottom duct
Air flow
(CFM)
Available external static pressure - IWG
1
1. Blower performance includes gas heat exchangers and 2 in. filters. See the static resistance table for additional applications.
2. See the RPM selection table to determine the required motor sheave setting and to determine the maximum continuous BHP.
3. kW = BHP x 0.932.
0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
Field supplied drive Standard 1.5 HP and drive High static 2 HP and drive
1800 580
0.29 652 0.49 722 0.70 791 0.90 855 1.09 917 1.27 973 1.44 1024 1.58 1069 1.70 1108 1.79
2000 599
0.41 671 0.61 741 0.81 809 1.02 874 1.21 935 1.39 992 1.56 1043 1.70 1088 1.82 1127 1.90
2200 618
0.53 690 0.74 760 0.94 829 1.14 894 1.34 955 1.52 1011 1.68 1062 1.83 1108 1.94 1146 2.03
2400 639
0.67 711 0.87 781 1.08 849 1.28 914 1.47 975 1.66 1032 1.82 1083 1.96 1128 2.08 1166 2.17
2600 661
0.82 733 1.02 803 1.23 871 1.43 936 1.62 998 1.80 1054 1.97 1105 2.11 1150 2.23 1189 2.32
2800 685
0.98 757 1.18 828 1.38 896 1.59 961 1.78 1022 1.96 1078 2.13 1130 2.27 1175 2.39 1213 2.47
3000 712
1.15 784 1.35 854 1.55 922 1.76 987 1.95 1048 2.13 1105 2.30 1156 2.44 1201 2.56 1240 2.64
3200 741
1.33 813 1.53 883 1.73 951 1.94 1016 2.13 1077 2.31 1134 2.48 1185 2.62 1230 2.74 1269 2.82
3400 772
1.52 844 1.72 915 1.92 983 2.13 1048 2.32 1109 2.50 1165 2.67 1216 2.81 1262 2.93 1300 3.01
2 HP and field supplied drive
ZT090 (7.5 Ton) bottom duct
Air flow
(CFM)
Available external static pressure - IWG
1
1. Blower performance includes gas heat exchangers and 2 in. filters. See the static resistance table for additional applications.
2. See the RPM selection table to determine the required motor sheave setting and to determine the maximum continuous BHP.
3. kW = BHP x 0.932.
0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
Field supplied drive Standard 2 HP and drive High static 3 HP and drive
2000 647
0.50 702 0.69 760 0.86 820 1.00 880 1.15 939 1.29 997 1.45 1053 1.64 1104 1.85 1151 2.11
2200 659
0.63 715 0.82 772 0.98 832 1.13 892 1.27 952 1.42 1010 1.58 1065 1.76 1117 1.98 1163 2.23
2400 675
0.76 730 0.95 788 1.12 847 1.26 907 1.41 967 1.55 1025 1.71 1081 1.90 1132 2.11 1179 2.37
2600 694
0.91 749 1.10 807 1.27 866 1.41 926 1.56 986 1.70 1044 1.86 1100 2.05 1151 2.26 1198 2.52
2800 717
1.08 772 1.26 830 1.43 889 1.58 949 1.72 1009 1.87 1067 2.03 1122 2.21 1174 2.42 1221 2.68
3000 744
1.25 799 1.44 857 1.60 916 1.75 976 1.89 1036 2.04 1094 2.20 1149 2.38 1201 2.60 1248 2.86
3200 775
1.43 830 1.62 888 1.78 947 1.93 1008 2.07 1067 2.22 1125 2.38 1181 2.56 1232 2.78 1279 3.04
3400 810
1.62 865 1.81 923 1.98 983 2.12 1043 2.27 1102 2.41 1160 2.57 1216 2.76 1267 2.97 1314 3.23
3600 849
1.83 905 2.01 962 2.18 1022 2.33 1082 2.47 1142 2.62 1200 2.78 1255 2.96 1307 3.18 1353 3.43
3800 893
2.04 948 2.23 1006 2.39 1065 2.54 1125 2.68 1185 2.83 1243 2.99 1299 3.17 1350 3.39 1397 3.64
3 HP and field supplied drive
ZT102 (8.5 Ton) bottom duct
Air flow
(CFM)
Available external static pressure - IWG
1
1. Blower performance includes gas heat exchangers and 2 in. filters. See the static resistance table for additional applications.
2. See the RPM selection table to determine the required motor sheave setting and to determine the maximum continuous BHP.
3. kW = BHP x 0.932.
0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
Field supplied drive Standard 2 HP and drive High static 3 HP and drive
2200 686
0.77 732 0.90 782 1.04 837 1.17 895 1.30 953 1.42 1011 1.53 1067 1.63 1120 1.72 1169 1.80
2400 703
0.88 749 1.02 800 1.15 854 1.28 912 1.41 970 1.53 1028 1.64 1084 1.74 1138 1.83 1186 1.91
2600 722
1.00 768 1.14 819 1.28 873 1.41 931 1.53 989 1.65 1047 1.77 1104 1.87 1157 1.96 1205 2.04
2800 744
1.14 789 1.28 840 1.42 895 1.55 952 1.67 1011 1.79 1069 1.91 1125 2.01 1178 2.10 1227 2.18
3000 767
1.30 813 1.43 863 1.57 918 1.70 976 1.83 1034 1.95 1092 2.06 1148 2.16 1202 2.25 1250 2.33
3200 793
1.47 838 1.60 889 1.74 944 1.87 1002 2.00 1060 2.12 1118 2.23 1174 2.33 1227 2.42 1276 2.50
3400 821
1.65 867 1.79 918 1.92 972 2.05 1030 2.18 1088 2.30 1146 2.41 1203 2.52 1256 2.61 1304 2.68
3600 852
1.85 897 1.99 948 2.12 1003 2.25 1060 2.38 1119 2.50 1177 2.61 1233 2.71 1286 2.81 1335 2.88
3800 884
2.06 930 2.20 981 2.33 1036 2.46 1093 2.59 1151 2.71 1209 2.82 1266 2.93 1319 3.02 1367 3.10
4000 919
2.29 965 2.42 1016 2.56 1071 2.69 1128 2.82 1186 2.94 1244 3.05 1301 3.15 1354 3.24 1402 3.32
4200 956
2.53 1002 2.66 1053 2.80 1108 2.93 1165 3.06 1223 3.18 1282 3.29 1338 3.39 - ---
3 HP and field supplied drive
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