RT-PRC024-EN 49
Performance Data
(25 Tons Standard Efficiency)
Table 31. Evaporator Fan Performance 25 Tons with Gas Heat YC*300B 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
7.5-HP Standard Motor & Low Static Drive Accessory 7.5-HP Standard Motor & Drive
7000 — — — — 614 2.59 639 2.77 662 2.94 684 3.11 706 3.30 728 3.49 750 3.70 773 3.92
7500 — — 621 2.85 647 3.08 671 3.29 693 3.48 715 3.66 736 3.85 756 4.05 777 4.26 797 4.47
8000 627 3.16 655 3.39 680 3.64 704 3.87 725 4.09 746 4.28 766 4.48 785 4.68 805 4.89 824 5.11
8500 662 3.76 689 4.00 714 4.26 737 4.52 758 4.76 778 4.98 797 5.18 815 5.39 834 5.61 852 5.83
9000 698 4.43 724 4.69 747 4.96 770 5.24 790 5.50 810 5.74 828 5.97 846 6.18 864 6.41 881 6.63
9500 734 5.18 758 5.45 781 5.73 803 6.02 823 6.31 842 6.58 860 6.83 878 7.06 895 7.29 911 7.53
10000 770 6.00 793 6.29 816 6.59 837 6.89 856 7.20 875 7.49 893 7.77 910 8.02 926 8.27 942 8.51
10500 806 6.92 829 7.22 850 7.53 870 7.85 890 8.17 908 8.48 — — — — — — — —
11000 842 7.92 864 8.24 885 8.56 — — — — — — — — — — — — — —
7.5-HP Standard Motor & High Static Drive Accessory
Continued
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 380V/60 Hz units, the oversized motor is used as the
standard motor. Refer to "Motor & Sheave/Fan Speed" tables to
determine operating range.
External Static Pressure (Inches of Water)
1.10 1.20 1.30 1.40 1.50
CFM RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
7.5-HP Standard Motor & Drive
7000 795 4.14 816 4.36 837 4.58 858 4.80 879 5.03
7500 818 4.70 839 4.94 859 5.18 879 5.41 899 5.65
8000 843 5.34 862 5.58 882 5.83 901 6.09 920 6.34
8500 870 6.06 888 6.30 906 6.55 924 6.81 943 7.08
9000 898 6.87 916 8.11 933 7.36 950 7.62 967 7.89
9500 928 7.77 944 8.01 960 8.27 977 8.53 — —
10000 — — — — — — — — — —
10500 — — — — — — — — — —
11000 — — — — — — — — — —
7.5-HP Standard Motor & High Static Drive Accessory
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