Sharp Edges - Trane SEHJ090-162 Installation, Operation And Maintenance Manual

Commercial single-zone rooftop air conditioners with cv, vav, szvav, or rr controls
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Inner Segment Removal Procedure:
1. Disconnect all electrical power.
2. Secure wheel from rotation.
CAUTION

Sharp Edges!

The service procedure described in this document
involves working around sharp edges. To avoid being
cut, technicians MUST put on all necessary Personal
Protective Equipment (PPE), including gloves and arm
guards. Protect hands and the belt from possible sharp
edges of the hole in the bearing support beam. Failure
to follow recommendations could result in minor to
moderate injury or product damage.
CAUTION
Added Support Required!
Before laying across the energy wheel, place a rigid
board across the span of the energy wheel cassette.
Failure to do so could result in personal injury and/or
damage to the energy wheel.
3. Support segment with one hand while removing ¼ - 20
flat head retaining screw in the wheel hub with 5/32"
Allen wrench, see
Figure
Figure 108. Inner Segment Removal
4. Carefully slide the segment out from between the hub
plates, and remove from the wheel.
5. Reinsert the ¼ - 20 screw in the removed segment nose
to avoid loss.
6. Rotate the wheel and continue this procedure to
remove all segments.
RT-SVX24J-EN
108.
Segment Replacement
WARNING
Hazardous Voltage!
Disconnect all electric power, including remote
disconnects before servicing. Follow proper lockout/
tagout procedures to ensure the power can not be
inadvertently energized. Do not open the service access
doors while the unit is operating. Failure to disconnect
power before servicing could result in death or serious
injury.
Inner Segment Replacement
1. Disconnect all electrical power.
2. Secure wheel from rotation.
CAUTION
Sharp Edges!
The service procedure described in this document
involves working around sharp edges. To avoid being
cut, technicians MUST put on all necessary Personal
Protective Equipment (PPE), including gloves and arm
guards. Protect hands and the belt from possible sharp
edges of the hole in the bearing support beam. Failure
to follow recommendations could result in minor to
moderate injury or product damage.
CAUTION
Added Support Required!
Before laying across the energy wheel, place a rigid
board across the span of the energy wheel cassette.
Failure to do so could result in personal injury and/or
damage to the energy wheel.
3. Remove ¼ - 20 flat head retaining screw from the inner
segment nose with 5/32" Allen wrench.
4. Rest the edge of the segment on the support flange on
one wheel spoke and slide it until the segment nose is
fitted firmly in the wheel hub and the segment screw
hole is aligned with the hub slot.
5. Reinsert ¼ - 20 screw into the hub / inner segment and
tighten until the screw is firmly seated, see
Unit Startup
Figure
108.
155

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