new wheel/motor
assembly
notch
Set the new wheel/motor assembly on a flat surface with the motor facing up. Orient the new motor plate so that the specification label faces up and the motor body fits into the wide notch in the motor plate.
CAUTION: The motor lead wires must be routed through
the motor plate as shown. Wires routed differently will become pinched or cut when the motor plate is installed into the housing. Electrical shock may result.
2 nuts wrench
Place the new motor plate onto the motor bracket studs. Fasten parts together securely using two nuts and wrench provided.
new
motor plate (“690” Series)
caution:
route motor wires
as shown
new
wheel/motor
assembly
notch
Attach the new motor plate to the new wheel/
motor assembly.new
motor plate
(“d” Housing)
6.
model 690NT
Page
7. Insert the new scroll band into the existing fan housing.
Note: Skip this step if the existing fan housing already con- tains a scroll band (plastic or metal).
| new |
| scroll |
| band |
double | single |
tab | |
tabs |
|
| double |
| tabs |
Bend it into a crescent shape and align one of the small slots in the scroll band with the single tab in the fan hous- ing. Place the ends of the scroll band behind the double tabs in the fan housing, and release the scroll band.
-- D-Housing fan only --
8.Install new blower assembly into existing fan housing.
2 tabs
&
slots
tab 
Insert two motor plate tabs into slots in housing and pivot blower assembly up until the third motor plate tab snaps into matching slot in housing. Make sure tabs hold blower assembly securely in place. Plug in motor.