Evaporator Fan Performance
10
RT-SVF25C-EN
Table 6.
Belt drive evaporator fan performance - 6 tons standard efficiency with gas heat - YSC072F3,4,W*H high heat
downflow 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
—
—
574 0.34
631
0.41
681
0.48
727 0.55 771
0.63
814
0.71
853
0.79
892
0.87
928
0.95
2160
562 0.36 616 0.44
671
0.52
719
0.60
763 0.68 805
0.76
845
0.84
884
0.93
921
1.02
957
1.11
2400
612 0.48 662 0.56
711
0.65
759
0.74
802 0.83 842
0.91
879
1.00
916
1.09
951
1.19
986
1.29
2640
663 0.63 709 0.71
754
0.80
798
0.90
842 1.00 881
1.10
917
1.19
951
1.29
986
1.39
1018 1.49
(b)
2880
715 0.80 758 0.88
799
0.98
840
1.08
880 1.19 920
1.30
955
1.41
990
1.51 1022
1.62
1053
1.72
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
963 1.04 997 1.12 1028 1.20 1061 1.28 1090 1.36 1119 1.45 1149 1.54 1177 1.63 1203
1.71
1229
1.80
2160
990 1.21 1023 1.30 1055 1.39 1086 1.48 1115 1.57 1144 1.66 1173 1.76 1200 1.85 1227
1.95
1253
2.04
2400 1019 1.39 1051 1.49 1083 1.60 1113 1.70 1141 1.80 1171 1.90 1199 2.01 1225 2.10 1252
2.20
—
—
2640 1050 1.59 1081 1.70 1111 1.81 1141 1.93 1170 2.04 1198 2.15 1226 2.27
—
—
—
—
—
—
2880 1084 1.83 1114 1.94 1143 2.06 1172 2.18 1199 2.30
—
—
—
—
—
—
—
—
—
—
2-hp Oversized Motor & Drive
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 Kit (or 2-hp Oversized Motor)