CFM
0.2
RPM
568
5250
604
5700
642
6150
676
6550
714
7000
753
7450
792
7900
827
8300
867
8750
CFM
1.2
RPM
848
5250
875
5700
902
6150
927
6550
955
7000
—
7450
—
7900
—
8300
—
8750
BLACK
indicates an operation point covered by high static. Confirm
max BHP coverage based on the unit voltage.
APPENDIX C — FAN PERFORMANCE
Table E — 581J 20 Horizontal Supply (17.5 Tons)
AVAILABLE EXTERNAL STATIC PRESSURE (IN. WG)
0.4
BHP
RPM
BHP
1.78
635
2.35
2.17
668
2.78
2.63
702
3.27
3.09
733
3.76
3.67
769
4.38
4.33
805
5.08
5.06
841
5.85
5.78
874
6.61
6.69
912
7.55
AVAILABLE EXTERNAL STATIC PRESSURE (IN. WG)
1.4
BHP
RPM
BHP
4.99
893
5.72
5.56
918
6.33
6.20
944
7.00
6.82
968
7.65
7.58
—
—
—
—
—
—
—
—
—
—
—
—
—
—
0.6
RPM
BHP
RPM
695
2.96
750
726
3.43
779
758
3.95
809
786
4.48
836
820
5.14
868
854
5.87
900
888
6.68
933
920
7.47
—
—
—
—
1.6
RPM
BHP
RPM
934
6.47
974
959
7.12
998
985
7.83
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
Standard static 622-822 RPM, 3.7 BHP max
Medium static 713-879 RPM, 4.9 BHP max
High static 835-1021 RPM
Voltage 208v / 230v / 460v / 575v
Max BHP 6.5 / 6.9 / 7.0 / 8.3
NOTE: Fan tables include highest gas heat.
76
0.8
1.0
BHP
RPM
3.61
801
4.11
829
4.67
857
5.23
883
5.92
913
6.69
944
7.54
—
—
—
—
—
1.8
2.0
BHP
RPM
7.25
1012
7.93
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
BHP
4.29
4.82
5.42
6.01
6.74
7.54
—
—
—
BHP
8.05
—
—
—
—
—
—
—
—