64
APPENDIX III. FAN PERFORMANCE (CONT)
Table 19 – 50TC*D18 HORIZONTAL SUPPLY / RETURN 15 TON
CFM
Available External Static Pressure (in. wg)
0.2 0.4 0.6 0.8 1.0
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
4500 451 0.84 533 1.21 605 1.63 668 2.12 726 2.67
4900 476 1.01 554 1.40 623 1.84 685 2.34 742 2.89
5250 498 1.18 573 1.60 640 2.05 701 2.55 756 3.11
5600 520 1.37 593 1.82 658 2.28 717 2.79 771 3.35
6000 546 1.61 616 2.10 679 2.58 736 3.10 789 3.67
6400 572 1.88 640 2.41 700 2.91 756 3.45 808 4.03
6750 595 2.13 661 2.70 720 3.23 774 3.79 825 4.38
7100 619 2.41 683 3.02 740 3.59 793 4.16 842 4.76
7500 646 2.75 708 3.42 764 4.02 815 4.62 863 5.23
CFM
Available External Static Pressure (in. wg)
1.2 1.4 1.6 1.8 2.0
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
4500 778 3.25 826 3.86 871 4.49 913 5.15 ‐ ‐
4900 794 3.49 842 4.12 887 4.78 ‐ ‐ ‐ ‐
5250 808 3.72 856 4.36 900 5.04 ‐ ‐ ‐ ‐
5600 822 3.97 870 4.62 ‐ ‐ ‐ ‐ ‐ ‐
6000 839 4.29 886 4.96 ‐ ‐ ‐ ‐ ‐ ‐
6400 857 4.65 ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐
6750 873 5.01 ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐
7100 ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐
7500 ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐
Standard Static Motor and Drive – 514 – 680 RPM, Max BHP 2.2 Medium Static Motor and Drive – 614 – 780 RPM, Max BHP 3.3
High Static Motor and Drive – 746 – 912 RPM, Max BHP 4.9 – Outside operating range
Boldface - Field Supplied Drive ITALIC - Field Supplied Motor and Drive
ITALIC Boldface - Field Supplied Drive with Medium Static Motor
Table 20 – 50TC*D21 HORIZONTAL SUPPLY / RETURN 17.5 TON
CFM
Available External Static Pressure (in. wg)
0.2 0.4 0.6 0.8 1.0
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
5250 498 1.18 573 1.60 640 2.05 701 2.55 756 3.11
5700 526 1.43 599 1.89 663 2.35 721 2.86 776 3.43
6100 552 1.67 622 2.17 684 2.66 741 3.18 794 3.76
6500 579 1.95 646 2.49 706 3.00 761 3.54 813 4.12
7000 612 2.33 677 2.93 734 3.48 788 4.05 837 4.64
7500 646 2.75 708 3.42 764 4.02 815 4.62 863 5.23
7900 673 3.13 734 3.86 788 4.50 838 5.12 884 5.75
8300 700 3.53 760 4.33 812 5.01 861 5.66 906 6.32
8750 731 4.03 789 4.90 840 5.63 887 6.33 932 7.02
CFM
Available External Static Pressure (in. wg)
1.2 1.4 1.6 1.8 2.0
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
5250 808 3.72 856 4.36 901 5.04 943 5.75 983 6.48
5700 826 4.05 874 4.71 918 5.40 960 6.13 1000 6.89
6100 843 4.38 890 5.05 934 5.75 976 6.50 1016 7.27
6500 861 4.75 907 5.43 951 6.14 992 6.90 1032 7.69
7000 885 5.28 929 5.96 972 6.69 1013 7.45 ‐ ‐
7500 909 5.88 953 6.58 994 7.31 ‐ ‐ ‐ ‐
7900 929 6.42 972 7.12 ‐ ‐ ‐ ‐ ‐ ‐
8300 950 7.01 992 7.72 ‐ ‐ ‐ ‐ ‐ ‐
8750 ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐
Standard Static Motor and Drive – 622 – 822 RPM, Max BHP 3.3 Medium Static Motor and Drive – 713 – 879 RPM, Max BHP 4.9
High Static Motor and Drive – 882 – 1078 RPM, Max BHP 6.5 – Outside operating range
Boldface - Field Supplied Drive ITALIC - Field Supplied Motor and Drive
ITALIC Boldface - Field Supplied Drive with Medium Static Motor Underscore - Field Supplied Drive with High Static Motor
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