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Performance
Data (20 Ton)
Table PD-9 — Evaporator Fan Performance — 20 Ton — WC*240B
External Static Pressure (Inches of Water)
.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 (1) 5 HP Standard Motor & Drive
6400 — — 531 1.80 556 1.97 582 2.14 610 2.28 634 2.44 658 2.61 681 2.79 705 2.98 729 3.19
7200 552 2.23 576 2.16 605 2.60 631 2.81 655 3.00 678 3.18 701 3.36 722 3.55 743 3.74 763 3.94
8000 605 3.01 627 3.16 655 3.39 679 3.63 702 3.86 724 4.07 745 4.28 766 4.48 786 4.68 805 4.90
8800 648 3.83 678 4.10 705 4.34 729 4.61 751 4.87 771 5.12 791 5.36 811 5.59 830 5.81 848 6.03
9600 702 4.91 729 5.21 755 5.49 779 5.77 800 6.06 820 6.34 839 6.61 857 6.88 875 7.13 893 7.37
(2) 7.5 HP Oversized Motor & Drive
Notes:
Fan motor heat (MBH) = 3.15 x Fan BHP.
Data includes pressure drop due to wet coils and filters.
No accessories or options are included in pressure drop data.
Refer to Table PD-13 to determine add’l static pressure drop due to other options/accessories.
Notes:
1. Field supplied fan sheave BK190 required. Field supplied belt may be necessary.
2. 7.5 HP oversize motor with field supplied motor sheave 1VP50 required. Field supplied belt may be necessary.
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 tabulated data will not result in nuisance tripping or premature motor failure. Our product's warranty will not be affected.
Table PD-9 — Evaporator Fan Performance — 20 Ton — WC*240B — Continued
External Static Pressure (Inches of Water)
1.10 1.20 1.30 1.40 1.50 1.60 1.70 1.80 1.90 2.00
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 & Drive 5 HP Standard Motor & High Static Drive Accessory
6400 753 3.39 776 3.59 799 3.80 822 4.02 844 4.24 865 4.47 886 4.69 906 4.92 925 5.16 944 5.40
7200 784 4.15 806 4.38 827 4.61 848 4.84 869 5.07 889 5.30 910 5.54 930 5.79 950 6.04 969 6.29
8000 824 5.11 842 5.32 860 5.55 880 5.80 899 6.06 918 6.31 937 6.56 956 6.81 974 7.07 993 7.33
8800 866 6.26 884 6.49 901 6.73 917 6.96 934 7.20 951 7.46 969 7.74 986 8.02 1004 8.30 — —
9600 910 7.61 927 7.85 943 8.10 960 8.35 975 8.61 — — ————————
7.5 HP Oversized Motor & Drive