26 SSP-PRC001-EN
Table PD-28: Evaporator Fan Performance 20 Ton TWE240B - Air Handler
Note:
1 Field Supplied Low Static Drive (use Table PD-30)
Data includes pressure drop due to wet coil and 2" filter.
Fan motor heat (MBh) = 3.15 x BHP.
Trane’s factory supplied motors, in commercial equipment, are definite purpose motors, specifically designed and tested to operate reliably and
continuously at all cataloged conditions. Using the full horsepower range of our fan motors as shown in our tabular data will not result in nuisance trip-
ping or premature motor failure. Our product’s warranty will not be affected.
Table PD-28: (Continued)
External Static Pressure (Inches of Water Gauge)
.10" .20" .30" .40" .50" .60" .70" .80" .90" 1.00" 1.20"
CFM RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
5 HP Standard Motor and Field
Supplied Low STatic Drive
1
5 HP Standard Motor and Low Static Drive Kit
6400 — — — — 570 1.41 612 1.57 654 1.7 696 1.83 743 2.06 781 2.25 808 2.4 835 2.55 883 2.86
6800 — — — — 593 1.58 635 1.74 677 1.90 722 2.08 762 2.29 794 2.46 820 2.61 846 2.76 894 3.07
7200 — — 573 1.58 615 1.75 657 1.92 700 2.09 747 2.33 781 2.52 806 2.66 831 2.81 856 2.96 904 3.29
7600 — — 603 1.84 651 1.98 694 2.15 731 2.38 766 2.57 795 2.74 819 2.88 844 3.02 869 3.17 919 3.55
8000 585 1.97 633 2.11 686 2.21 730 2.39 761 2.66 785 2.81 809 2.95 832 3.09 857 3.23 882 3.37 933 3.8
8400 619 2.2 657 2.35 710 2.54 752 2.73 778 2.94 801 3.09 823 3.23 848 3.39 873 3.55 899 3.71 947 4.14
8800 652 2.43 680 2.60 733 2.86 773 3.07 794 3.22 816 3.36 837 3.50 863 3.68 889 3.86 915 4.04 960 4.47
9200 682 2.76 723 2.98 760 3.19 790 3.37 811 3.52 834 3.68 858 3.84 884 4.01 909 4.2 932 4.4 975 4.83
9600 711 3.08 766 3.36 787 3.52 807 3.67 828 3.82 852 3.99 878 4.17 904 4.35 929 4.53 949 4.75 990 5.2
5 HP Standard Motor and Sheaves
7.5 HP Oversized
Motor and Sheaves
External Static Pressure (Inches of Water Gauge)
1.40" 1.60" 1.80" 2.00" 2.20" 2.40" 2.60"
CFM RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
5 HP Standard Motor and Sheaves 7.5 HP Oversized Motor and Sheaves
6400 930 3.16 976 3.52 1021 3.89 1066 4.26 1111 4.62 1156 4.99 1201 5.36
6800 941 3.4 986 3.78 1030 4.16 1075 4.55 1119 4.93 1164 5.31 — —
7200 951 3.65 995 4.04 1039 4.44 1083 4.84 1127 5.23 1171 5.63 — —
7600 963 3.94 1007 4.34 1050 4.75 1093 5.16 1136 5.57 1179 5.98 — —
8000 975 4.23 1018 4.65 1060 5.07 1103 5.49 1145 5.91 1187 6.34 — —
8400 989 4.57 1032 5.01 1074 5.44 1117 5.87 1159 6.31 1200 6.73 — —
8800 1002 4.92 1045 5.36 1087 5.81 1130 6.26 1172 6.70 — — — —
9200 1016 5.28 1058 5.73 1099 6.17 1141 6.62 1182 7.07 — — — —
9600 1030 5.65 1071 6.09 1111 6.54 1152 6.99 1192 7.43 — — — —
Table PD-29: Low Static Fan Drive
Kit 20 Ton TWE240B Air
Handler
Table PD-30: Low Static Fan Drive 20
Ton TWE240B Air
Handler
1
Motor Sheave
Turns Open
Nominal
RPM
Motor Sheave
Turns Open
Nominal
RPM
0 857 0 712
1 831 1 686
2 805 2 660
3 779 3 634
4 753 4 609
5 727 5 583
6 701 6 557
Performance Data
20 Ton
Note:
1 Field supplied components required:
Motor Sheave: Variable Pitch (4.3-5.5 inch
Pitch Diameter),
1.125 inch Bore, Single Groove, "B" Belt.
Blower Sheave: Fixed Pitch (13.4 inch
Pitch Diameter),
1.4375 inch Bore, Single Groove, "B" Belt.
Belt: B67
