Evaporator Fan Performance - Trane Precedent TSC090H Service Facts

Evaporator Fan Performance

Table 7. Belt drive evaporator fan performance - 7.5 tons standard efficiency - TSC090H3,4,W downflow airflow
.10 .20
cfm rpm bhp rpm bhp rpm bhp rpm bhp rpm bhp rpm bhp rpm bhp rpm bhp rpm
1-hp Standard Motor & Field Supplied Low Static Drive
2400 613 0.42 668 0.50
2700 676 0.56 733 0.69
3000 741 0.75 793 0.89
3300 807 0.98 849 1.10
3600 874 1.25 909 1.36
continued
1.10 1.20
cfm rpm bhp rpm bhp rpm bhp rpm bhp rpm bhp rpm bhp rpm bhp rpm bhp rpm
1-hp Standard Motor & High Static Drive Kit (or 2-hp Oversized Motor & Drive)
2400 1011 1.20 1041 1.28 1070 1.36 1099 1.44 1127 1.52 1153 1.60 1178 1.68 1203 1.76 1229
2700 1051 1.45 1082 1.54 1111 1.63 1139 1.72 1166 1.81 1192 1.90 1217 1.98 1243 2.08 1268
3000 1096 1.73 1124 1.83 1153 1.93 1180 2.03 1207 2.13 1233 2.23 1258 2.33 1283 2.43 1308
3300 1142 2.05 1170 2.16 1197 2.27 1223 2.37 1249 2.48 1275 2.59 1300 2.71 1324 2.82 1347
3600 1191 2.41 1218 2.53 1244 2.65 1269 2.77 1294 2.89 1319 3.01 1342 3.12 1366 3.24 1389
Notes:
1. For standard evaporator fan speed (rpm), reference the standard motor and sheave/fan speed applicable table in the fan performance section.
2. Data includes pressure drop due to standard filters and wet coils. No accessories or options are included in pressure drop data.
3. 1-hp Fan Motor Heat (MBh) = 2.829 x Fan bhp+.4024. 3-hp Fan Motor Heat (MBh) = 2.900 x Fan bhp+.4750
4. 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.
(a) Field Supplied Fan Sheave AK74 and Belt AX35
(b) Field Supplied Fan Sheave BK52 and Belt BX30
RT-SVF55F-EN
External Static Pressure (Inches of Water)
.30 .40 .50
711 0.57 756 0.65 798
767 0.74 808 0.83 848
832 0.98 863 1.04 901
897 1.26 925 1.32 954
957 1.55 990 1.67 1015 1.73 1042 1.82 1074 1.95 1104 2.07 1134
External Static Pressure (Inches of Water)
1.30 1.40 1.50
.60 .70
(a)
0.72 838 0.80 875 0.88
0.91 886 1.00 922 1.09
1.14 936 1.24 971 1.33 1003 1.43 1036
1.40 989 1.51 1022 1.62 1053 1.73 1084
3-hp Oversized Motor & Drive
1.60 1.70
3-hp Oversized Motor & Field Supplied High Static Drive
Performance Data
.80 .90
bhp rpm
1-hp Standard Motor & Drive
911 0.96 945 1.04
956 1.18 989 1.27 1021
1.53 1067
1.83 1113
2.18 1163
1.80 1.90
bhp rpm
1.84 1252
2.17 1291
2.53 1331
2.92 1371
3.36
1.00
bhp
978 1.12
1.36
1.63
1.94
2.30
2.00
bhp
1.92
2.25
2.63
3.03
— —
(b)
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