Greenheck Fan Greenheck Centrifugal Inline Fans SQ/BSQ - Manual (Page 10)

10
The side discharge option helps to reduce system
effect. It will increase performance and reduce
installation labor. The most notable is reducing system
effects. Note: The figure 1 example shows the air
being discharged into the corner. It will take several
duct lengths before the airflow becomes laminar or
smooth again after making the turn.
In figure 2, the fan is placed in the corner using a side
discharge. In this configuration the air flow pattern at
discharge is smooth and supports a more predictable
system. Remember the duct length on the discharge
side, should be approximately two to three wheel
diameters to achieve catalog performance. Discharge Configuration
Fan performance will change with different discharge
positions. Catalog data is based on an inline
discharge. Right side discharge will give you 108%
of cataloged performance and left side will give you
109% of cataloged performance. Use figure 3 to
locate the orientation to fit your application. Figures 4
and 5 on page 11 illustrate the proper side discharge
definitions. Refer to Greenheck’s CAPS (Computer
Aided Product Selection) program or consult factory
for performance modifications.
Figure 1
Fan
Figure 2
Fan
Discharge Configurations
Left Discharge
Right Discharge
Left, Right & Inline Discharge
Left & Right Discharge
Figure 3