Segment Replacement - 900-15,000 Wheel Cfm; Unlock The Segment Retainers - Trane CSAA Installation, Operation And Maintenance Manual

Routine Maintenance
6. Slowly rotate the wheel by hand 180 degrees and
repeat the process to remove the second segment.
7. Rotate the wheel 90 degrees by hand and remove the
third segment.
8. Rotate the wheel 180 degrees by hand and remove the
fourth segment. Rotating the wheel in this manner
keeps the wheel balanced while removing the
segments.
9. Continue this procedure to remove all the segments.

Segment Replacement - 900-15,000 wheel cfm

WARNING
Hazardous Voltage!
Failure to disconnect power before servicing could
result in death or serious injury. Disconnect all electric
power, including remote disconnects before servicing.
Follow proper lockout/tagout procedures to ensure the
power can not be inadvertently energized.
1. Disconnect all electrical power.
2. Unlock the two segment retainers, one for each side of
the selected segment opening (see
3. With the embedded stiffener facing the motor side,
insert the nose of the segment between the hub plates
(see Figure 197).
4. Holding the segment by the two outer corners, press
the segment toward the center of the wheel and inward
against the spoke flanges. If hand pressure does not
fully seat the segment, insert the flat tip of a
screwdriver between the wheel rim and outer corners
of the segment and apply downward force while
guiding the segment into place.
5. Close and latch each segment retainer under the
segment retaining catch.
6. Slowly rotate the wheel 180 degrees by hand. Install
the second segment opposite the first for
counterbalance.
7. Rotate the two installed segments 90 degrees by hand
to balance the wheel while the third segment is
installed.
8. Rotate the wheel 180 degrees by hand to install the
fourth segment opposite the third.
9. Repeat this sequence with the remaining four
segments.
Replacing the segments with a spare set can be
accomplished more quickly. Remove the dirty segment,
replace it with a clean segment, then move to the next
segment. The 180/90/180-degree rotation procedure is not
necessary.
156
Figure 195. Unlock the segment retainers
Figure 196. Pull the segment up and out of the wheel
Figure 195).
Figure 197. Insert nose of segment between hub plates
frame to remove
to install
CLCH-SVX07K-EN