42
RT-PRC002-EN
Performance
Data
(20 Ton)
High Efficiency
For Standard Evaporator Fan Speed (RPM), reference Table PD-31.
For Standard Motor & High Static Drive Accessory Fan Speed (RPM), reference Table PD-32.
For Oversized Evaporator Fan Speed (RPM), reference Table PD-33.
*Unit applications below 6400 CFM
• Electric heaters restricted on applications below 6400 CFM.
• Dehumidification (Hot Gas Reheat) or TXV with Frostat and Crankcase Heaters
are required on applications below 6400 CFM.
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-35 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 Standard Motor with Field Supplied Motor Sheave 1VP50 Required. Field Supplied Belt
may be necessary.
3. Field Supplied Fan Sheave B5V200 and Motor Sheave IVP34 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 tabular data will not result in nuisance tripping or
premature motor failure. Our product’s warranty will not be
affected.
*Indicates both downflow and horizontal units.
Table PD-28 — Evaporator Fan Performance — 20 Ton — TC*241C — Standard or TXV Refrigeration System
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 5 HP Standard Motor & Field
Extra Low Static Drive (3) Supplied Low Static Drive (1)
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 (2) 7.5 HP Oversized Motor & Drive
Table PD-28 — Evaporator Fan Performance — 20 Ton — TC*241C — 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
