86
Boldface indicates alternate standard static drive package is required.
Italics indicate high static drive package with different motor pulley is
required (all voltages).
Underscore
indicates operation point is covered by factory package.
Confirm max BHP based on unit voltage selected.
Table I — 48TCF*20 Vertical Supply (17.5 tons)
CFM
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
0.2 0.4 0.6 0.8 1.0
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
5250 547 1.10
626 1.45 700 1.84 766 2.24 828 2.67
5700 581 1.35
655 1.72 724 2.12 789 2.55 849 3.00
6150 615 1.63 684 2.02 750 2.44 812 2.90 871 3.37
6550 646 1.92 711 2.32 774 2.77 834 3.24 891 3.73
7000
682 2.28 743 2.71 803 3.17 860 3.66 915 4.17
7450 718 2.70 775 3.14 832 3.62 887 4.13 940 4.67
7900
755 3.16 809 3.62 863 4.12 915 4.65 966 5.21
8300
787 3.62 839 4.09 891 4.61 941 5.16 990 5.73
8750 825 4.18 874 4.68 923 5.22 971 5.78 1018 6.38
CFM
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
1.2 1.4 1.6 1.8 2.0
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
5250
885 3.11 939 3.57 990 4.05 1038 4.54 1084 5.04
5700
905 3.47 958 3.95 1008 4.45 1055 4.96 1100 5.48
6150 925 3.86 977 4.36 1026 4.88 1073 5.42 1118 5.96
6550
945 4.24 995 4.76 1043 5.30 1090 5.86 1134 6.42
7000
967 4.71 1017 5.26 1064 5.82 1109 6.39 1153 6.98
7450 991 5.22 1039 5.79 1085 6.38 1130 6.98 1172 7.59
7900
1015 5.78 1062 6.38 1107 6.99 1151 7.61 — —
8300 1038 6.33 1084 6.94 1128 7.57 1171 8.21 — —
8750 1064
6.99 1109 7.63 1152 8.28 — — — —
Standard static: 622-822 rpm, 3.7 max BHP
Medium static: 713-879 rpm
Voltage: 208v / 230v / 460v / 575v
Max BHP: 6.5 / 6.9 / 7.0 / 8.3
High static: 882-1078 rpm
Voltage: 208v / 230v / 460v / 575v
Max BHP: 6.5 / 6.9 / 7.0 / 8.3
High static drive with different motor pulley. Confirm max BHP
coverage based on unit voltage selected.
APPENDIX C — FAN PERFORMANCE
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