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APPENDIX “B”
THOMSON TECHNOLOGY
©
INSTRUCTIONS TO CHANGE SYSTEM
VOLTAGE ON TS 870 SERIES TRANSFER
SWITCHES WITH TSC 80 CONTROLLER
9087A - 198
th
Street, Langley, B.C. Canada V1M 3B1 • Telephone (604) 888-0110 • Telefax (604) 888-3370
DANGER!!!!
Arc Flash and Shock Hazard. Will cause severe injury or death.
Do not open equipment until ALL power sources are disconnected
This equipment must be installed and serviced only by qualified electrical personnel
utilizing safe work practices and appropriate Personal Protective Equipment (PPE).
Failure to do so may cause personal injury or death
1. Ensure all power sources are de-energized prior to opening the transfer switch enclosure door.
2. Disconnect “Control Circuit Isolation Plug”
3. Change voltage transformer primary taps settings to match new system voltage on all potential
transformers. (Refer to wiring schematic diagram Figure 1). Ensure all electrical connections are
tight.
4. Remove rear cover on door mounted TSC 80 transfer controller.
5. Change voltage jumper setting to desired system voltage (Refer to Figure 2).
Note: 208V systems do not require a jumper on any pins.
6. Re-install rear cover for TSC 80 transfer controller.
7. Record new programmed voltage on calibration label on TSC 80 rear cover
8. Re-connect “Control Circuit Isolation Plug”.
9. Remove all tools and close transfer switch enclosure door.