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37RT-PRC001-EN
Performance
Data
(12½ Ton)
High Efficiency
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 Standard Evaporator Fan Speed (RPM), reference Table PD-31.
For Standard Motor & High Static Drive Accessory/Fan Speed (RPM), reference Table PD-32.
For Oversize Evaporator Fan Speed (RPM), reference Table PD-33.
Data includes pressure drop due to filters and wet coils.
No accessories or options are included in pressure drop data.
Refer to Table PD-36 to determine add’l static pressure drop due to other options/accessories
Fan motor heat (MBH) = 3.15 x Fan Bhp.
Notes:
1. Field Supplied Fan Sheave BK115 required. Field Supplied Belt may be necessary.
Table PD-24 — Evaporator Fan Performance — 12½ Ton — YCH151C— Standard 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
3 HP Standard Motor & Field Supplied Low Static Drive (1) 3 HP Standard Motor & Drive
4000 — — — — 520 1.01 550 1.13 580 1.25 610 1.38 638 1.51 666 1.65 693 1.80 720 1.95
4500 502 1.10 533 1.21 562 1.34 590 1.47 617 1.60 644 1.73 671 1.88 696 2.03 721 2.18 746 2.33
5000 551 1.47 579 1.61 606 1.74 632 1.87 657 2.02 682 2.17 706 2.31 730 2.46 754 2.63 777 2.80
5500 600 2.92 627 2.08 651 2.22 675 237 699 2.52 722 2.68 744 2.85 766 3.00 788 3.16 810 3.34
6000 649 2.46 675 2.64 698 2.79 720 2.94 742 3.11 764 3.28 785 3.46 805 3.64 825 3.81 845 3.98
3 HP Standard Motor & Drive 5 HP Oversized Motor & Drive
Table PD-24 — Evaporator Fan Performance — 12½ Ton— YCH151C — 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
3 HP Standard Motor & Drive 3 HP Standard Motor & High Static Drive
4000 746 2.10 771 2.26 795 2.41 819 2.57 842 2.72 864 2.89 886 3.05 908 3.22 929 3.40 951 3.58
4500 770 2.49 794 2.66 818 2.83 841 3.01 863 3.18 885 3.35 906 3.53 927 3.70 947 3.88 967 4.06
5000 799 2.96 821 3.13 843 3.31 965 3.49 887 3.68 908 3.87 929 4.07 949 4.26 969 4.45 988 4.64
5500 831 3.52 852 3.70 873 3.89 893 4.07 913 4.26 933 4.46 953 4.66 972 4.87 992 5.08 1011 5.29
6000 865 4.15 885 4.35 905 4.55 924 4.75 943 4.95 962 5.15 980 5.35 999 5.56 — — — —
5 HP Oversized Motor & Drive