20
RLC-SVN005B-EN
RTHC Units with EasySTART (or Wye-Delta) Starter
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.
For units with an Easy Start Cutler Hammer SSS, remove
the following components, location shown in
:
•
1U11, EasySTART SSS
•
1K300 (replace)
•
1K400 (replace)
•
1TB1 terminal block
For units with wye-delta starters, remove the associated
contactors and resistors. See
for an example.
Figure 18.
Remove highlighted components (EasySTART) — RTHC
%ASY3TART
3OLID3TATE3TARTER
4ERMINAL"LOCK