Table 14 — Fan Performance (Air Foil) — 48/50MP70M*
AIRFLOW
(Cfm)
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
0.50 0.75 1.00 1.25 1.50 1.75 2.00 2.25 2.50 2.75
Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp
18,000 668 5.1 702 5.9 735 6.7 767 7.5 801 8.4 833 9.3 863 10.3 893 11.2 924 12.2 954 13.3
20,000 725 6.6 756 7.4 787 8.3 816 9.1 844 10.0 875 11.0 905 12.0 933 13.1 961 14.1 987 15.2
22,000 781 8.2 809 9.1 838 10.0 865 10.9 892 11.9 917 12.8 945 13.9 973 15.0 999 16.2 1025 17.3
24,000 837 10.0 864 11.0 890 12.1 916 13.1 941 14.1 966 15.1 989 16.2 1013 17.3 1039 18.5 1065 19.7
26,000 898 12.3 923 13.4 947 14.5 971 15.6 995 16.7 1018 17.8 1041 19.0 1063 20.1 1084 21.2 1108 22.5
28,000 955 14.8 979 16.0 1002 17.2 1025 18.4 1047 19.6 1069 20.8 1091 21.9 1112 23.1 1133 24.3 1153 25.6
30,000 1011 17.4 1034 18.8 1056 20.0 1078 21.3 1098 22.6 1119 23.9 1140 25.2 1160 26.5 1180 27.7 1200 29.0
32,000 1071 20.7 1093 22.1 1114 23.5 1135 24.9 1154 26.2 1174 27.6 1193 29.0 1213 30.4 1232 31.7 1251 33.1
34,000 1129 24.3 1150 25.7 1171 27.2 1190 28.7 1210 30.1 1228 31.6 1246 33.1 1264 34.6 1283 36.0 1301 37.4
36,000 1186 28.1 1207 29.6 1226 31.2 1245 32.8 1264 34.3 1282 35.9 1299 37.4 1317 39.0 1334 40.5 1351 42.1
AIRFLOW
(Cfm)
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
3.00 3.25 3.50 3.75 4.00 4.25 4.50 4.75 5.00
Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp
18,000 983 14.3 1011 15.4 1039 16.4 1065 17.5 1091 18.6 ————————
20,000 1014 16.3 1042 17.4 1069 18.6 1095 19.7 1120 20.9 1145 22.1 1169 23.3 1193 24.5 1216 25.8
22,000 1050 18.5 1074 19.6 1098 20.8 1124 22.1 1149 23.3 1173 24.6 1197 25.9 1220 27.2 1243 28.5
24,000 1089 20.9 1113 22.2 1136 23.4 1158 24.7 1180 26.0 1202 27.3 1226 28.6 1249 30.0 1271 31.4
26,000 1132 23.8 1155 25.1 1177 26.4 1199 27.8 1221 29.1 1242 30.5 1262 31.9 1282 33.3 1303 34.7
28,000 1172 26.8 1195 28.2 1217 29.6 1239 31.0 1260 32.5 1280 33.9 1300 35.4 1320 36.8 1340 38.3
30,000 1219 30.3 1238 31.6 1256 32.9 1277 34.4 1298 35.9 1318 37.5 1338 39.0 1357 40.5 1376 42.1
32,000 1270 34.4 1288 35.8 1305 37.2 1323 38.6 1340 40.0 1360 41.6 1379 43.2 1398 44.8 1417 46.4
34,000 1319 38.9 1337 40.3 1354 41.8 1371 43.2 1388 44.7 1404 46.2 1420 47.7 1439 49.3 1457 51.0
36,000 1369 43.6 1386 45.1 1403 46.6 1419 48.2 1435 49.7 1451 51.3 1467 52.8 1483 54.4 1498 55.9
LEGEND
Bhp — Brake Horsepower
*Refer toFan Performance, 48MPUnits section, forcorrect procedure on
48MP units.
NOTES:
1. Fan performance is based on wet coils and clean 2-in. filters.
2. Conversion — Bhp to kW:
Bhp × .746
kW =
Motor efficiency
See Table 1 for motor efficiency.
Table 15 — Fan Performance (Air Foil) — 48/50MP82N*
AIRFLOW
(Cfm)
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
0.50 0.75 1.00 1.25 1.50 1.75 2.00 2.25 2.50 2.75
Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp
20,000 4494.14855.05196.05517.05838.16169.4————————
22,000 477 4.9 511 5.9 543 7.0 574 8.1 602 9.2 631 10.3 661 11.7 ——————
24,000 505 5.9 538 7.0 568 8.1 598 9.2 626 10.4 652 11.6 677 12.9 706 14.3 733 15.8 — —
26,000 535 7.0 565 8.1 594 9.3 622 10.5 649 11.7 675 13.0 699 14.4 723 15.7 748 17.2 773 18.7
28,000 563 8.1 591 9.3 619 10.6 646 11.9 671 13.2 697 14.5 721 15.9 744 17.3 766 18.8 787 20.2
30,000 595 9.6 621 10.8 647 12.1 673 13.5 698 14.9 721 16.3 745 17.8 767 19.3 789 20.8 810 22.3
32,000 624 11.0 649 12.3 673 13.7 698 15.2 722 16.6 745 18.1 767 19.6 789 21.2 811 22.8 831 24.4
34,000 655 12.7 679 14.1 702 15.6 725 17.1 748 18.7 770 20.2 792 21.8 813 23.4 834 25.0 854 26.7
36,000 685 14.6 709 16.1 731 17.6 752 19.2 771 20.8 796 22.4 817 24.1 838 25.8 857 27.5 877 29.2
38,000 717 16.7 739 18.3 761 19.9 781 21.5 801 23.2 822 24.9 843 26.6 863 28.4 882 30.1 901 31.9
40,000 748 18.9 769 20.5 789 22.2 809 24.0 829 25.7 848 27.4 868 29.3 888 31.1 907 32.9 925 34.8
42,000 779 21.3 799 23.1 819 24.8 838 26.6 857 28.4 875 30.3 894 32.1 913 34.0 931 35.9 950 37.9
AIRFLOW
(Cfm)
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
3.00 3.25 3.50 3.75 4.00 4.25 4.50 4.75 5.00
Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp
20,000 ——————————————————
22,000 ——————————————————
24,000 ——————————————————
26,000 798 20.3 — ———————————————
28,000 812 21.9 835 23.6 858 25.3 ————————————
30,000 831 23.8 851 25.4 874 27.2 896 29.1 917 30.9 ————————
32,000 851 26.0 871 27.6 890 29.3 910 31.0 931 32.9 952 34.9 972 36.8 992 38.8 — —
34,000 874 28.4 893 30.1 912 31.8 930 33.6 948 35.3 966 37.2 986 39.2 1006 41.3 1025 43.4
36,000 896 31.0 915 32.7 934 34.5 952 36.3 969 38.2 986 40.0 1003 41.9 1021 43.8 1039 46.0
38,000 920 33.7 938 35.6 956 37.5 974 39.4 991 41.3 1008 43.2 1025 45.1 1041 47.1 1057 49.0
40,000 943 36.6 961 38.5 978 40.5 996 42.4 1013 44.4 1030 46.4 1046 48.4 1062 50.4 1078 52.5
42,000 967 39.8 984 41.8 1001 43.7 1018 45.8 1035 47.8 1052 49.9 1068 52.0 1084 54.0 1099 56.2
LEGEND
Bhp — Brake Horsepower
*Refer toFan Performance, 48MPUnits section, forcorrect procedure on
48MP units.
NOTES:
1. Fan performance is based on wet coils and clean 2-in. filters.
2. Conversion — Bhp to kW:
Bhp × .746
kW =
Motor efficiency
See Table 1 for motor efficiency.
33