349218-JIM-F-0512
Johnson Controls Unitary Products 41
J20ZJ (20 Ton) Bottom Duct
Air Flow
(CFM)
Available External Static Pressure - IWG
1
1. Blower performance includes gas heat exchangers and 2” filters. See STATIC RESISTANCE table for additional applications.
2. See RPM SELECTION table to determine desired motor sheave setting and to determine the maximum continuous BHP.
3. kW = BHP x 0.838.
0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4 2.6
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 5
HP & Field
Supplied
Drive
Standard 5 HP & Drive High Static 7.5 HP & Drive
5200 694 1.43 730 1.89 766 2.32 801 2.72 836 3.09 871 3.42 904 3.71 937 3.95 968 4.14 997 4.28 1025 4.35 1051 4.37
5600 713 1.82 749 2.27 785 2.71 820 3.11 856 3.48 890 3.81 923 4.10 956 4.34 987 4.53 1017 4.67 1045 4.74 1071 4.75
6000 734 2.25 770 2.70 806 3.13 841 3.53 877 3.90 911 4.23 944 4.52 977 4.77 1008 4.96 1038 5.09 1066 5.17 1092 5.18
6400 757 2.71 793 3.17 829 3.60 864 4.00 899 4.37 934 4.70 967 4.99 1000 5.23 1031 5.42 1060 5.56 1088 5.64 1114 5.65
6800 781 3.22 817 3.68 853 4.11 888 4.51 923 4.88 958 5.21 991 5.50 1024 5.74 1055 5.94 1085 6.07 1112 6.15 1139 6.16
7200 807 3.78 843 4.23 878 4.66 914 5.07 949 5.44 983 5.77 1017 6.06 1049 6.30 1081 6.49 1110 6.63 1138 6.70 1164 6.71
7600 834 4.38 870 4.83 905 5.26 941 5.67 976 6.04 1010 6.37 1044 6.66 1076 6.90 1108 7.09 1137 7.23 1165 7.30 1191 7.31
8000 862 5.02 898 5.48 934 5.91 969 6.31 1004 6.68 1039 7.01 1072 7.30 1105 7.55 1136 7.74 1166 7.87 1194 7.95 1220 7.96
8400 892 5.71 928 6.17 963 6.60 999 7.00 1034 7.37 1069 7.70 1102 7.99 1134 8.24 1166 8.43 1195 8.56 - - - -
8800 923 6.45 959 6.91 994 7.34 1030 7.74 1065 8.11 1099 8.44 - - - - - - - - - - - -
9200 955 7.23 991 7.68 1026 8.11 1062 8.52 - - --------------
9600 988 8.05 1024 8.51 - - - - - - --------------
7.5 HP & Field Supplied Drive
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