Greenheck ERCH-20 Installation, Operation And Maintenance Manual page 72

Prepare the fan
Power Assembly
If power assembly (motor, wheel, and scroll) is not
installed in housing, insert the electrical plug into fan
socket, then slide scroll end of power assembly into
fan housing. Attach by using two sheet metal screws
provided.
B Model
Fan Rotation
To rotate from horizontal to vertical discharge
A-Models Only
A-50-500, 710, 780 Models
Remove the two screws holding the power assembly
in and pull power assembly out. Rotate power
assembly 180 degrees and put back into fan. Use
the same screws to reattach power assembly to fan
housing. Flip fan over and remove the four screws
holding the discharge duct and damper assembly.
Exchange the assembly with plate mounted on top of
fan, as shown in these illustrations.
A-700, 900-1500 Models
Remove the eight screws
holding the access panel or
collar as shown in picture.
Rotate the fan housing so
the discharge is facing up.
Replace access panel or
collar and screws.
2 Ceiling Exhaust and Inline Fans
Remove Wiring Knockout
Remove either top or side wiring knockout,
depending on wiring
direction, by
bending it back
and forth to
break tabs.
A Model
Ductwork
Check ductwork to see if the fan's discharge requires
rotation from horizontal to vertical discharge.
Access
Panel
E lectrical
A ccess
P anel
Airflow
Access
Panel
K nockouts
®