Trane 7½ - 20 Tons - Performance Data - Evaporator Fan Performance (20 Tons)

SSP-PRC001-EN 27
Performance Data
Evaporator Fan Performance, Low Static Fan Drive, 20 Tons
Table 25. Evaporator Fan Performance 20 Ton TWE240B - Air Handler
External Static Pressure (Inches of Water Gauge)
.10" .20" .30" .40" .50" .60" .70" .80" .90" 1.00"
CFM RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
5 HP Standard Motor & Field Supplied Low Static Drive
(i)
(i)
Field Supplied Low Static Drive (use Table 26)
5 HP Standard Motor & 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
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
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
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
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
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
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
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
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
5 HP Standard Motor & Sheaves
External Static Pressure (Inches of Water Gauge)
1.20" 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 RPM BHP
5 HP Standard Motor & Sheaves 7.5 HP Oversized Motor & Sheaves
6400 883 2.86 930 3.16 976 3.52 1021 3.89 1066 4.26 1111 4.62 1156 4.99 1201 5.36
6800 894 3.07 941 3.4 986 3.78 1030 4.16 1075 4.55 1119 4.93 1164 5.31 — —
7200 904 3.29 951 3.65 995 4.04 1039 4.44 1083 4.84 1127 5.23 1171 5.63 — —
7600 919 3.55 963 3.94 1007 4.34 1050 4.75 1093 5.16 1136 5.57 1179 5.98 — —
8000 933 3.8 975 4.23 1018 4.65 1060 5.07 1103 5.49 1145 5.91 1187 6.34 — —
8400 947 4.14 989 4.57 1032 5.01 1074 5.44 1117 5.87 1159 6.31 1200 6.73 — —
8800 960 4.47 1002 4.92 1045 5.36 1087 5.81 1130 6.26 1172 6.70 ————
9200 975 4.83 1016 5.28 1058 5.73 1099 6.17 1141 6.62 1182 7.07 ————
9600 990 5.2 1030 5.65 1071 6.09 1111 6.54 1152 6.99 1192 7.43 ————
Notes:
1. Data includes pressure drop due to wet coil and 2" filter.
2. Fan motor heat (MBh) = 3.15 x BHP.
3. 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
tripping or premature motor failure. Our product’s warranty will not be affected.
Table 26. Low Static Fan Drive 20 Tons TWE240B/TWE240E Air Handler
Field Supplied Low Static Fan Drive
20 Tons TWE240B/TWE240E Air Handler
(i)
(i)
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
Low Static Fan Drive Accessory Kit
20 Tons TWE240B/TWE240E Air Handler
Motor Sheave
Turns Open
Nominal
RPM
Motor Sheave
Turns Open
Nominal
RPM
0 712 0 857
1 686 1 831
2 660 2 805
3 634 3 779
4 609 4 753
5 583 5 727
6 557 6 701