Evaporator Fan Performance
RT-SVF25C-EN
9
Table 5.
Belt drive evaporator fan performance - 6 tons standard efficiency with gas heat - YSC072F3,4,W*L,M low &
medium heat horizontal airflow
External Static Pressure (Inches of Water)
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.90
1.00
cfm rpm bhp rpm bhp rpm bhp rpm bhp rpm bhp rpm bhp rpm bhp rpm bhp rpm bhp
rpm
bhp
1-hp Standard Motor & Field Supplied Low Static Drive
(a)
1-hp Standard Motor & Drive
1920
—
—
591 0.34 649
0.42
699 0.48 745 0.56 789 0.64 834 0.72 877
0.81
918
0.89
957
0.97
2160
587 0.38 633 0.44 690
0.52
740 0.61 784 0.68 825 0.76 865 0.85 904
0.95
943
1.04
981
1.13
2400
643 0.51 682 0.58 732
0.65
781 0.75 825 0.84 864 0.92 902 1.01 938
1.11
974
1.21
1010 1.32
(b)
2640
700 0.66 736 0.74 775
0.81
822 0.90 866 1.01 906 1.11 942 1.20 976
1.29 1009
1.40
1042
1.51
2880
756 0.84 790 0.93 823
1.01
864 1.09 907 1.20 947 1.32 983 1.43 1017 1.53 1048
1.62
1080
1.73
2-hp Oversized Motor & Drive
Continued
External Static Pressure (Inches of Water)
1.10
1.20
1.30
1.40
1.50
1.60
1.70
1.80
1.90
2.00
cfm rpm bhp rpm bhp rpm bhp rpm bhp rpm bhp rpm bhp rpm bhp rpm bhp rpm bhp
rpm
bhp
1-hp Standard Motor & Drive
1-hp Standard Motor & High Static Drive Kit (or 2-hp Oversized Motor & Drive)
1920
996 1.06 1033 1.16 1067 1.25 1102 1.35 1134 1.44 1165 1.53 1195 1.63 1223 1.72 1251
1.82
1277
1.91
2160 1018 1.23 1054 1.32 1090 1.42 1123 1.52 1156 1.63 1188 1.73 1218 1.84 1247 1.94 1276
2.05
1304
2.16
2400 1044 1.42 1079 1.52 1112 1.62 1145 1.73 1177 1.83 1208 1.94 1240 2.06 1268 2.17 1298
2.29
—
—
2640 1075 1.62 1107 1.74 1139 1.85 1170 1.96 1201 2.08 1232 2.19
—
—
—
—
—
—
—
—
2880 1111 1.85 1140 1.97 1169 2.09 1200 2.22
—
—
—
—
—
—
—
—
—
—
—
—
2-hp Oversized Motor & Drive
2-hp Oversized Motor & Field Supplied High Static Drive
(c)
Notes:
1. For Standard Evaporator Fan Speed (rpm), reference
.
2. Data includes pressure drop due to standard filters and wet coils. No accessories or options are included in pressure drop data.
3. Refer to
to determine additional static pressure drop due to other options/accessories.
4. 1-hp Fan Motor Heat (MBh) = 2.829 x Fan bhp + .4024. 2-hp Fan Motor Heat (MBh) = 3.000 x Fan bhp + .5000.
5. 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 AK84 and Belt AX36 required.
(b) 1-hp Standard Motor & High Static Drive (or 2-hp Oversized Motor)
(c) Field Supplied Fan Sheave AK56 and Belt AX30 required.