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