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31RT-PRC001-EN
Performance
Data
(12½ Ton)
Standard 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 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 BK90 Required. Field Supplied Belt may be necessary.
2 3 HP Standard Motor with Field Supplied Motor Sheave 1VP44 Required. Field Supplied Belt may be necessary.
3. 5 HP Oversize Motor with Field Supplied Motor Sheave 1VP50 Required. Field Supplied Belt may be necessary.
4. For 380V/60 Hz units, the oversized motor is used as the standard motor, Refer to “Motor and Sheave/Fan Speed” tables to
determine operating range.
Table PD-17 — Evaporator Fan Performance — 12½ Ton— YC*150D — 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 Accessory (2)
4000 799 1.75 829 1.87 856 1.99 884 2.11 911 2.24 937 2.35 962 2.47 987 2.59 1010 2.70 1034 2.82
4500 820 2.12 847 2.24 873 2.36 900 2.50 927 2.64 952 2.77 978 2.91 1003 3.05 1025 3.18 1049 3.32
5000 847 2.56 873 2.70 897 2.83 921 2.96 945 3.09 970 3.24 993 3.38 1017 3.53 1041 3.69 1064 3.85
5500 881 3.06 903 3.22 926 3.37 948 3.52 971 3.67 993 3.80 1015 3.95 1036 4.09 1058 4.25 1081 4.41
6000 916 3.61 938 3.78 959 3.96 980 4.13 1001 4.31 1021 4.46 1042 4.62 1062 4.78 1082 4.93 1103 5.09
5 HP Oversized Motor & Drive (3) 5 HP Oversized Motor & Drive (3)
5 HP Oversized Motor & FieldSupplied High Static Drive (3)
Table PD-17 — Evaporator Fan Performance — 12½ Ton — YC*150D
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 & Drive (2)
4000 — — — — — — 581 0.97 614 1.08 646 1.20 677 1.31 707 1.41 738 1.52 768 1.63
4500 — — — — 588 1.15 622 1.27 652 1.38 682 1.50 711 1.63 738 1.76 766 1.88 793 2.00
5000 571 1.26 602 1.37 631 1.46 663 1.63 693 1.75 720 1.87 747 2.00 773 2.15 798 2.29 823 2.43
5500 621 1.65 650 1.79 678 1.87 704 2.01 734 2.19 760 2.33 786 2.45 810 2.59 834 2.74 858 2.91
6000 674 2.10 699 2.28 727 2.37 749 2.48 775 2.66 802 2.86 826 3.00 849 3.13 872 3.28 894 3.44
3 HP Standard Motor & Field Supplied Low Static Drive (1)