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PERFORMANCE DATA (cont)
FAN PERFORMANCE — VERTICAL 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
900 581 0.12 673 0.18 736 0.22
805 0.25 865 0.29 911 0.34
1000 644 0.19 709 0.22
782 0.28 835 0.30 900 0.35 937 0.38
1100 687 0.22 746 0.26
806 0.30 867 0.35 929 0.40 964 0.40
1200 733 0.26
785 0.32 843 0.35 903 0.41 960 0.47 994 0.50
1300 754 0.29
826 0.38 891 0.43 942 0.48 991 0.53 1047 0.60
1400
810 0.35 868 0.45 937 0.51 984 0.57 1032 0.62 1067 0.67
1500
841 0.42 911 0.53 985 0.61 1029 0.66 1073 0.72
1109 0.77
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
957 0.39 988 0.43 1039 0.45 1061 0.47 1083 0.53
1105 0.57
1000
992 0.44 1039 0.49 1061 0.51 1086 0.55
1111 0.59 1136 0.63
1100
1013 0.49 1068 0.55 1090 0.58
1109 0.61 1127 0.64 1145 0.67
1200
1045 0.56 1090 0.64
1109 0.64 1156 0.68 1203 0.71 1250 0.74
1300
1075 0.64
1122 0.70 1152 0.72 1190 0.76 1228 0.80 1266 0.84
1400 1110 0.73 1160 0.84 1181 0.81 1237 0.85 1293 0.89 1349 0.93
1500 1150 0.82 1190 1.00 1225 0.90 1271 0.95 1317 1.00 1363 1.05
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 542 0.16 616 0.21 678 0.27 739 0.32
842 0.44 886 0.50 929 0.56
1300 576 0.20 644 0.25 704 0.31 764 0.37
867 0.50 910 0.56 952 0.62
1400 610 0.24 673 0.30 732 0.36 791 0.42
889 0.55 933 0.62 976 0.69
1500 646 0.28 704 0.35 761 0.42 818 0.48
912 0.61 957 0.69 1001 0.76
1600 681 0.33 735 0.40 790 0.47
845 0.54 920 0.68 931 0.76 1023 0.83
1700 718 0.39 768 0.46 836 0.54
873 0.61 965 0.76 1005 0.84 1045 0.91
1800 754 0.45 801 0.53
851 0.61 900 0.69 992 0.84 1032 0.92 1071 1.00
1900 791 0.52 836 0.60
832 0.69 828 0.77 1019 0.93 1058 1.02 1097 1.10
2000 828 0.60
870 0.68 864 0.77 858 0.86 1046 1.03 1085 1.12
1124 1.21
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
1008 0.67 1052 0.73 1096 0.78 1134 0.89
1203 1.00
——
1300
1029 0.75 1065 0.81 1101 0.86 1174 1.01
1229 1.15
1277 1.27
1400
1052 0.83 1087 0.90 1121 0.96 1183 1.09
1255 1.22 1305 1.38
1500
1076 0.91 1111 0.99 1145 1.06
1208 1.20 1274 1.33 1337 1.47
1600
1100 1.00 1134 1.08 1168 1.15
1232 1.31 1291 1.46 1350 1.60
1700
1124 1.09 1158 1.17
1192 1.25 1255 1.42 1314 1.58 1370 1.77
1800
1147 1.18
1182 1.27 1217 1.36 1279 1.54 1381 1.71 1393 1.89
1900
1169 1.27 1205 1.37 1240 1.47 1303 1.66 1408 1.85 1417 2.03
2000
1194 1.38 1228 1.48 1262 1.58 1327 1.78 1436 1.98 1440 2.18
Bhp —
Brake Horsepower Input to Fan
50TFQ004-012
549B036-120