62 RT-PRC024-EN
Performance Data
(20 Tons High Efficiency)
Table 44. Evaporator Fan Performance 20 Tons TC*241C Standard or TXV Refrigeration System Downflow or Horizontal
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 Extra Low Static Drive
(i)
(i)
Field Supplied Fan Sheave B5V200 and Field Supplied Motor Sheave 1VP34 Required. Field Supplied Belt may be necessary.
5-HP Standard Motor & Field Supplied Low Static Drive
(ii)
(ii)
Field Supplied Fan Sheave BK190 Required. Field Supplied Belt may be necessary.
4000* — — — — 428 0.69 467 0.82 504 0.95 538 1.08 572 1.23 603 1.38 632 1.55 660 1.71
5200* 426 0.94 463 1.09 494 1.22 524 1.35 555 1.51 585 1.67 614 1.83 642 2.00 670 2.17 696 2.35
6400 506 1.64 540 1.84 570 2.03 595 2.19 620 2.34 644 2.51 669 2.69 693 2.89 717 3.09 741 3.29
7200 560 2.28 592 2.50 620 2.72 646 2.92 668 3.10 690 3.27 711 3.45 733 3.65 755 3.86 777 4.08
8000 616 3.07 645 3.31 672 3.56 696 3.80 719 4.02 739 4.22 759 4.41 778 4.60 797 4.81 817 5.03
8800 671 4.04 698 4.29 724 4.55 747 4.83 769 5.10 790 5.34 808 5.56 826 5.77 844 5.98 861 6.20
9600 728 5.19 753 5.46 776 5.74 799 6.04 820 6.34 840 6.63 859 6.90 876 7.14 893 7.37 909 7.59
5-HP Standard Motor & Drive 7.5-HP Standard Motor w/Field Supplied
Motor Sheave
(iii)
(iii)
7.5 Standard Motor with Field Supplied Motor Sheave IVP50 required. Field Supplied Belt may be necessary.
7.5-HP Oversized Motor & Drive
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
4000* 688 1.87 714 2.03 739 2.20 764 2.36 787 2.53 810 2.70 831 2.87 852 3.05 873 3.23 892 3.41
5200* 722 2.54 747 2.73 771 2.93 795 3.14 817 3.35 839 3.56 861 3.77 882 3.98 902 4.19 923 4.41
6400 765 3.49 788 3.70 810 3.91 832 4.12 854 4.34 875 4.57 896 4.80 916 5.04 936 5.29 955 5.54
7200 799 4.31 820 4.53 841 4.76 862 4.99 883 5.22 902 5.46 922 5.69 942 5.94 961 6.19 980 6.44
8000 837 5.26 857 5.51 876 5.76 896 6.01 915 6.26 934 6.52 953 6.77 971 7.03 989 7.29 — —
8800 879 6.43 897 6.67 915 6.93 933 7.19 951 7.46 969 7.74 986 8.01 — — — — — —
9600 925 7.83 941 8.07 958 8.32 974 8.58 — — — — — — — — — — — —
7.5-HP Oversized Motor & Drive
For Standard Evaporator Fan Speed (RPM), reference Table 50.
For Standard Motor & Low Static Drive Accessory Fan Speed (RPM), reference Table 51.
For Oversized Evaporator Fan Speed (RPM), reference Table 53.
Fan motor heat (MBH) = 3.15 x Fan BHP.
Notes:
Data includes pressure drop due to standard filters and wet coils. No accessories or options are included in pressure drop data.
Refer to Table 54 to determine additional static pressure drop due to other options/accessories.
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.
*For 4000 and 5200 CFM, unit applications below 320 CFM/Ton are only applicable to TCD models only (No Gas Heat). See below for restrictions.
• Electric heaters restricted on applications below 320 CFM/Ton.
• Dehumidification (Hot Gas Reheat) or TXV with Frostat and Crankcase Heaters are required on applications below 320 CFM/Ton.
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