SSP-PRC001-EN
23
Performance Data
Evaporator Fan Performance, Low Static Fan Drive, 7½ Tons
Table 17.
Evaporator Fan Performance 7 1/2 Ton TWE090A, TWE090B - Air Handler
External Static Pressure (Inches of Water Gauge)
.10"
.20"
.30"
.40"
.50"
.60"
.70"
.80"
.90"
1.00"
CFM
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
1.5 HP Standard Motor & Field Supplied
Low Static Drive
(i)
(i)
Field Supplied Low Static Drive (use
Table 18
)
1.5 HP Standard Motor & Low Static Drive Kit
1.5 HP Standard Motor &
Sheaves
2400
429
0.45
475
0.51
522
0.58
569
0.65
615
0.71
662
0.78
708
0.84
755
0.91
783
0.98
811
1.05
2550
453
0.48
496
0.55
539
0.61
582
0.68
626
0.74
669
0.81
712
0.87
756
0.94
785
1
814
1.08
2700
476
0.52
516
0.58
556
0.65
596
0.71
636
0.77
676
0.83
716
0.9
758
0.96
787
1.02
816
1.11
2850
500
0.55
537
0.62
573
0.68
610
0.74
646
0.8
683
0.86
720
0.92
759
0.99
788
1.05
819
1.14
3000
524
0.59
557
0.65
590
0.71
624
0.77
657
0.83
690
0.89
723
0.95
760
1.01
790
1.07
821
1.17
3150
546
0.62
577
0.68
609
0.75
640
0.81
672
0.87
703
0.94
735
1.00
768
1.07
798
1.15
829
1.25
3300
568
0.65
598
0.72
628
0.79
657
0.85
687
0.92
717
0.99
746
1.05
776
1.12
807
1.22
837
1.33
3450
589
0.67
618
0.75
647
0.83
676
0.91
705
0.99
733
1.07
762
1.15
791
1.23
820
1.33
849
1.42
3600
611
0.69
639
0.79
666
0.88
694
0.97
722
1.06
750
1.16
778
1.25
806
1.34
834
1.43
862
1.51
External Static Pressure (Inches of Water Gauge)
1.10"
1.20"
1.30"
1.40"
1.50"
1.60"
1.70"
1.80"
CFM
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
1.5 HP Standard Motor & Sheaves
2400
840
1.11
868
1.18
896
1.25
924
1.32
952
1.39
890
1.46 1009 1.52 1037 1.59
2550
843
1.15
872
1.23
901
1.31
930
1.38
959
1.46
988
1.54 1016 1.61 1045 1.69
2700
846
1.19
876
1.28
905
1.36
935
1.45
965
1.53
995
1.62 1024
1.7
1054 1.79
2850
849
1.23
880
1.33
910
1.42
941
1.51
971
1.6
1002
1.7
1032 1.79 1063 1.88
3000
853
1.27
884
1.37
915
1.48
946
1.58
978
1.68 1009 1.78 1040 1.88 1071 1.98
3150
860
1.35
891
1.45
922
1.56
958
1.66
984
1.76 1014 1.86 1044 1.94
—
—
3300
868
1.43
898
1.54
929
1.64
959
1.74
990
1.85 1020 1.95 1049 2.01
—
—
3450
879
1.52
908
1.61
937
1.71
966
1.8
995
1.9
1025
2
—
—
—
—
3600
890
1.6
918
1.69
945
1.78
973
1.87 1001 1.96
—
—
—
—
—
—
2 HP Oversized Motor & Sheaves
Notes:
1.
Data includes pressure drop due to wet coil and 1" filter.
2.
Fan motor heat (MBh) = 3.15 x BHP.
3.
Trane’s 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.
Table 18. Low Static Fan Drive 7½ Tons TWE090A, B Air Handler
Field Supplied Low Static Fan Drive
7½ Tons TWE090A, B Air Handler
(i)
(i)
Field supplied components required:
Blower Sheave: Fixed Pitch (9.8 inch Pitch Diameter), Blower Sheave: 1.00 inch Bore,
Single Groove, "A" Belt. Belt: A55
Low Static Fan Drive Accessory Kit
7½ Tons TWE090A, B Air Handler
Motor Sheave
Turns Open
Nominal
RPM
Motor Sheave
Turns Open
Nominal
RPM
0
598
0
733
1
563
1
690
2
528
2
647
3
493
3
604
4
458
4
561
5
422
5
518
