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PERFORMANCE DATA (cont)
FAN PERFORMANCE — HORIZONTAL DISCHARGE UNITS
LEGEND
Refer to page 87 for general Fan Performance notes.
NOTES:
1.
Boldface
indicates a field-supplied drive is required. (See Note 3.)
2. Maximum continuous bhp is 1.20.
3. Motor drive range: 760 to 1090 rpm. All other rpms require field-
supplied drive.
LEGEND
Refer to page 87 for general Fan Performance notes.
NOTES:
1.
Boldface
indicates a field-supplied drive is required. (See Note 4.)
2. indicates field-supplied motor and drive are required.
3. Maximum continuous bhp is 1.20.
4. Motor drive range: 840 to 1185 rpm. All other rpms require field-
supplied drive.
549B036 (3 TONS) — STANDARD MOTOR (BELT DRIVE)
Airflow
(Cfm)
External Static Pressure (in. wg)
0.1 0.2 0.3 0.4 0.5 0.6
Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp
900 526 0.06 584 0.08 656 0.12 734 0.22
818 0.25 875 0.27
1000 570 0.09 627 0.13 738 0.19
800 0.26 848 0.29 895 0.31
1100 614 0.13 670 0.16 758 0.23
812 0.29 863 0.32 914 0.35
1200 658 0.16 710 0.23
780 0.28 840 0.32 889 0.36 938 0.40
1300 703 0.20 752 0.27
808 0.32 868 0.37 916 0.41 963 0.45
1400 725 0.29
776 0.31 845 0.38 891 0.42 937 0.47 983 0.51
1500 755 0.33
816 0.38 870 0.43 924 0.48 969 0.53 1014 0.58
549B036 (3 TONS) — STANDARD MOTOR (BELT DRIVE) (cont)
Airflow
(Cfm)
External Static Pressure (in. wg)
0.7 0.8 0.9 1.0 1.1 1.2
Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp
900
924 0.32 953 0.35 989 0.38 1028 0.42 1074 0.49
1120 0.54
1000
936 0.35 977 0.39 1020 0.44 1064 0.48
1124 0.54 1185 0.60
1100
960 0.39 1005 0.43 1052 0.49
1100 0.52 1163 0.59 1225 0.65
1200
960 0.45 1038 0.50 1076 0.53
1136 0.59 1201 0.65 1266 0.72
1300
1012 0.51 1061 0.56 1090 0.61
1172 0.65 1239 0.72 1306 0.79
1400
1027 0.56 1071 0.60
1108 0.67 1208 0.70 1278 0.79 1347 0.87
1500
1056 0.63
1097 0.68 1117 0.70 1245 0.74 1315 0.87 1385 0.96
Bhp —
Brake Horsepower Input to Fan
549B048 (4 TONS) — STANDARD MOTOR (BELT DRIVE)
Airflow
(Cfm)
External Static Pressure (in. wg)
0.1 0.2 0.3 0.4 0.6 0.7 0.8
Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp
1200 514 0.15 590 0.20 657 0.25 723 0.30 828 0.42
876 0.49 924 0.55
1300 545 0.18 615 0.23 680 0.29 744 0.35
849 0.47 895 0.54 940 0.60
1400 577 0.21 642 0.27 704 0.33 766 0.39
870 0.52 915 0.59 959 0.66
1500 609 0.26 670 0.31 729 0.38 788 0.44
892 0.58 936 0.65 980 0.72
1600 642 0.30 699 0.36 755 0.43 811 0.49
913 0.64 957 0.72 1001 0.79
1700 675 0.36 728 0.42 782 0.49 836 0.55
935 0.71 979 0.79 1023 0.86
1800 709 0.41 759 0.48 810 0.55
860 0.62 957 0.78 1001 0.86 1044 0.94
1900 743 0.48 790 0.55 838 0.62
886 0.69 980 0.86 1023 0.95 1066 1.03
2000 778 0.55 836 0.62
875 0.70 913 0.77 1004 0.94 1046 1.03 1088 1.12
549B048 (4 TONS) — STANDARD MOTOR (BELT DRIVE) (cont)
Airflow
(Cfm)
External Static Pressure (in. wg)
1.0 1.1 1.2 1.4 1.6 1.8
Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp
1200
999 0.66 1018 0.67 1036 0.68 1073 0.71 1109 0.75 1138 0.79
1300
1025 0.74 1058 0.79 1090 0.84 1121 0.87 1159 0.90
1193 0.95
1400
1042 0.81 1080 0.88 1118 0.95 1175 1.06
1206 1.09 1244 1.12
1500
1060 0.88 1098 0.96 1136 1.04
1205 1.19
1258 1.30 1289 1.34
1600
1080 0.95 1117 1.04 1153 1.12
1224 1.29 1287 1.45 1337 1.56
1700
1101 1.03 1137 1.12 1172 1.20
1241 1.38 1307 1.56 1366 1.73
1800
1122 1.11 1157 1.20
1192 1.29 1258 1.48 1323 1.67 1385 1.86
1900
1143 1.21 1179 1.30 1214 1.39 1279 1.58 1341 1.78 1402 1.98
2000
1165 1.31 1200 1.40 1235 1.49 1300 1.69 1361 1.90 1419 2.10
Bhp —
Brake Horsepower Input to Fan
50TFQ004-012
549B036-120