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RLC-SVN005B-EN
RTHB Units with A515 (or Wye-Delta) Starters
Removal of Existing Starter
WARNING
Hazardous Voltage w/Capacitors!
Disconnect all electric power, including remote
disconnects and discharge all motor start/run
capacitors before servicing. Follow proper lockout/
tagout procedures to ensure the power cannot be
inadvertently energized. For variable frequency drives
or other energy storing components provided by Trane
or others, refer to the appropriate manufacturer’s
literature for allowable waiting periods for discharge of
capacitors. Verify with an appropriate voltmeter that all
capacitors have discharged. Failure to disconnect power
and discharge capacitors before servicing could result
in death or serious injury.
For additional information regarding the safe discharge
of capacitors, see PROD-SVB06A-EN.
The following components of an A515 Cutler Hammer SSS
need to be removed prior to installing the RediStart
starter:
•
Power poles
•
CFR mounted on 2TB3
•
2TRTimer
•
MOV behind the 2U1 module
•
2CR1 control relay
For units with wye-delta starters, remove the associated
contactors and resistors. See
for an example.
shows the basic layout of the A515 starter
with the components that need to be removed
highlighted.
Figure 11. Remove the highlighted components (A515 starter) — RTHB
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