RT-PRC024-EN 47
Performance Data
(20 Tons Standard Efficiency)
Table 29. Evaporator Fan Performance 20 Tons with Gas Heat YC*240B 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 Low Static Drive
(i)
(i)
Field Supplied Fan Sheave BK190 required. Field Supplied Belt may be necessary.
5-HP Standard Motor & Drive
6400 511 1.56 538 1.72 564 1.99 590 2.16 615 2.31 639 2.47 663 2.65 688 2.84 711 3.04 735 3.23
7200 555 2.25 587 2.46 614 2.67 640 2.88 663 3.06 685 3.23 706 3.41 728 3.60 749 3.80 771 4.01
8000 609 3.03 639 3.26 665 3.50 690 3.73 712 3.96 733 4.16 753 4.35 772 4.55 792 4.75 811 4.96
8800 664 3.98 692 4.23 717 4.49 740 4.75 762 5.01 782 5.25 801 5.48 820 5.69 838 5.90 855 6.12
9600 719 5.11 745 5.38 770 5.66 792 5.94 813 6.23 832 6.51 851 6.78 869 7.03 886 7.27 902 7.50
7.5-HP Oversized Motor & Sheave
(ii)
(ii)
7.5 HP Standard Motor with Field Supplied Motor Sheave IVP50 required. Field Supplied Belt may be necessary.
*For 380V/60 Hz units, the oversized motor is used as the standard motor. Refer to "Motor & Sheave/Fan Speed" tables to determine operating range.
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
6400 758 3.4 781 3.64 804 3.85 827 4.07 848 4.29 869 4.51 890 4.73 910 4.97 929 5.21 949 5.45
7200 792 4.24 813 4.46 834 4.68 854 4.90 875 5.13 895 5.37 916 5.62 936 5.86 955 6.11 973 6.35
8000 830 5.18 850 5.42 869 5.66 888 5.91 907 6.16 925 6.40 944 6.65 962 6.90 981 7.16 1000 7.44
8800 873 6.34 890 6.58 908 6.82 925 7.08 943 7.34 961 7.61 978 7.88 995 8.16 — — — —
9600 919 7.73 935 7.97 951 8.21 967 8.46 — — — — — — — — — — — —
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.
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