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4. The blade flanges have an interlocking feature that
must be fully engaged before tightening the screw.
Make sure all the flanges are properly engaged
and then tighten the flange screws. If one of the
flanges does not seat properly on the motor hub,
loosen the adjacent flange screws, re-engage and
reseat the flanges, then tighten the screws again.
REMOVE ONE M4 x 10mm
SERRATED PAN HEAD
SCREW AND LOOSEN THE
OTHER TWO SCREWS
ADAPTER PLATE
M6 x 14mm CAPTIVE PAN
HEAD SCREW (2 per
blade/flange assembly)
Figure 3
5. Remove and retain one of the three M4 x 10 mm
serrated pan head screws from the adapter plate
(Figure 3). Loosen the other two serrated head
screws, three or four turns.
6. Position the bracket switch housing assembly on
the adapter plate so that the two screws mate with
the two keyhole slots in the bracket switch housing
assembly with rubber cover.
7. Turn the bracket switch housing assembly
clockwise and tighten both screws (Figure 4).
Reinstall the other serrated head screw in the
remaining hole in the bracket switch housing
assembly.
ROTATE SWITCH HOUSING ADAPTER
REINSTALL ONE M4
CLOCKWISE TO ENGAGE TWO KEYHOLE
x 10mm SERRATED
SCREWS
PAN HEAD SCREW
Figure 4
8. Engage the connector of the switch housing
assembly with the motor connector (Figure 5). The
two connectors are keyed and color-coded and
must be mated correctly (color-to-color) before
they can be engaged. Make sure the
connector latch closes properly.
9. Remove the three mounting screws from the
bracket switch housing assembly (Figure 5).
SWITCH HOUSING
ASSEMBLY
BLADE/FLANGE
ASSEMBLY
Figure 5
10. Position the switch housing assembly on the
switch housing plate and align the holes in the
switch housing assembly with the holes in the
plate. Secure the switch housing assembly by
installing the three M4 x 12mm flat head screws
(supplied) (Figure 6).
To avoid possible fire or shock, do not pinch wires
between the switch housing assembly and the
bracket switch housing assembly.
TIGHTEN TWO
M4 x 10mm
SERRATED PAN
HEAD SCREWS
Figure 6
11. Carefully turn partially assembled fan upside
down and place in styrofoam form carton, in
preparation for final installation.
5
SWITCH HOUSING
CONNECTOR
MOTOR CONNECTOR
SWITCH HOUSING
WARNING
!
SWITCH HOUSING
ASSEMBLY
M4 x 12mm FLAT HEAD
SCREW (3)
U.L. Model No.: CF552
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