Rthc Units With Easystart (Or Wye-Delta) Starter; Removal Of Existing Starter - Trane RTHA Installation, Operation And Maintenance Manual

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.
Figure 18. Remove highlighted components (EasySTART) — RTHC
20
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
Starters," p. 8 for an example.
Figure 18:
"RTHA Units with Wye-Delta
RLC-SVN005B-EN