Trane CSAA User Manual

Routine Maintenance
CLCH-SVX07K-EN 157
Segment Removal - 17,500 and higher wheel
cfm
For energy wheel applications requiring 17,500 cfm and
higher, wheel segments with satellite sections are used
(see Figure 198).
Removal Procedure for Outer Segments
Note: Install and remove all segments at location
indicated by arrow in Figure 198.
1. Disconnect all electrical power.
2. Align outer segment with wheel drive pulley. Secure
pulley and belt with vise grip to prevent rotation (see
Figure 199).
3. Insert flat tipped screwdriver between rim and
segment retainer latch. Rotate screwdriver to release
latch from under catch.
4. Rotate latch 90 degrees from rim. Remove forked
segment retainers.
5. Insert screwdriver tip between corners of segment and
spoke. Gently pry ends of segment part way out. Grasp
one end of segment and lift straight out.
6. Remove vise grip. Repeat steps 1 through 5 for each
segment in the order shown in Figure 198.
Removal Procedure for Inner Segments
Remove inner segments in the order shown in Figure 198
as follows:
1. Align inner segment with wheel drive pulley. Secure
pulley and belt with vise grip to prevent rotation (see
Figure 199).
2. Support segment with one hand while removing 1/4-20
flat head retaining screw in hub with 5/32 inch Allen
wrench.
3. With weight of segment resting on lower spoke,
carefully slide segment out from between hub plates.
4. Being careful to balance segment on lower spoke with
one hand, grasp nose of segment with other hand and
remove from wheel.
5. Reinsert 1/4-20 screws in segment nose bracket to
avoid loss.
6. Remove vise grip. Repeat steps 1 through 5 for each
segment in the order shown in Figure 198.
Segment Replacement - 17,500 and higher
wheel cfm
Installation Procedure for Inner Segments
Note: Note: Install and remove all segments at location
indicated by arrow in Figure 198.
1. Rotate the wheel clockwise to align the center of a
spoke opening with the pulley. Secure pulley and belt
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.
Figure 198. Install and remove segments in the order
shown
9
14
15
12 11
16
10
13
1
7
4
5
2
8
3
6
Rotate Clockwise
Install
here
Figure 199. Secure pulley and belt with vise grip to
prevent wheel rotation

Trane CSAA Specifications

General

Brand	Trane
Model	CSAA
Category	Air Handlers
Language	English