Trane Precedent TSC090H Service Facts page 9

Table 9. Belt drive evaporator fan performance - 7.5 tons standard efficiency with gas heat - YSC090H3,4,W low &
medium gas heat 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 655 0.47 707 0.55
2700 724 0.64 770 0.73
3000 794 0.86 837 0.96
3300 865 1.12 905 1.23
3600 937 1.43 973 1.55 1008 1.67 1042 1.79 1077 1.91 1112 2.05 1144 2.18 1174 2.30 1203
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 & Drive
2400 1060 1.30 1091 1.39 1120 1.48 1150 1.57 1178 1.65 1204 1.74 1231 1.83 1256 1.91 1281
2700 1109 1.58 1139 1.68 1167 1.77 1195 1.86 1223 1.96 1249 2.06 1275 2.16 1301 2.26 1325
3000 1158 1.90 1188 2.00 1216 2.11 1244 2.21 1271 2.32 1296 2.42 1321 2.53 1346 2.64 1371
3300 1209 2.26 1238 2.37 1265 2.49 1293 2.61 1319 2.72 1344 2.84 1369 2.95 1393 3.07 1416
3600 1261 2.67 1289 2.80 1316 2.92 1342 3.04 1368 3.17 1393 3.30 1419 3.43
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
758 0.64 802 0.72 845
817 0.83 861 0.92 900
878 1.06 920 1.17 958
942 1.34 980 1.45 1018 1.57 1053 1.69 1085 1.80 1117 1.92 1148
External Static Pressure (Inches of Water)
1.30 1.40 1.50
3-hp Oversized Motor & Field Supplied High Static Drive
.60 .70
(a)
1-hp Standard Motor & Drive
0.80 886 0.88 925 0.97
1.02 939 1.11 976 1.20 1011 1.30 1045
1.27 994 1.38 1029 1.48 1063 1.58 1096
3-hp Oversized Motor & Drive
1.60 1.70
Performance Data
.80 .90
bhp rpm
961 1.05 997 1.14 1028
1.39 1077
1.69 1128
2.03 1179
2.42 1232
1.80 1.90
bhp rpm
2.00 1304
2.35 1349
2.75 1393
3.18 1441
— — — — —
(b)
1.00
bhp
1.22
1.49
1.79
2.14
2.55
2.00
bhp
2.09
2.45
2.85
3.30
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