NOTE
The following commissioning procedures are provided for general
information only pertaining to typical site installation and
applications. Contact Thomson Power Systems for further
information as may be required.
A) Pre-Energization Checks
1. Verify the generator and utility supply voltages match the model of the ATS ordered. If a different
voltage is required, refer to procedure in Appendix B for voltage change programming procedure.
2. Confirm power cable size is correct for the lugs supplied in the transfer switch (line, load, and neutral)
and are properly torqued.
3. Confirm transfer switch has been adequately grounded per NEC/CEC requirements.
4. Confirm power cables have been Insulation Resistance Tested to ensure no cross phase connections
or conduction to ground.
5. Check to ensure there is no mechanical damage.
6. Check to ensure no packaging materials or tools are left inside the transfer switch.
7. Verify control wiring connected to terminal blocks are properly installed (i.e. no frayed ends, screws
are tight, no damage, etc.).
8. Ensure ATS Power Chassis & Voltage Sensing Isolation Plugs (PL12 & PL15) are inserted and all
TSC 900 Controller plugs are inserted prior to operation.
9. Visually verify the transfer switch unit is closed in the utility position as indicated on the power
contactor unit front cover.
10. Verify correct control wire interconnects have been installed to the generator set auto start/stop
controls.
NOTE: The ATS Engine Start contact closes to start the engine and opens to stop the engine.
11. Ensure the inside of the transfer switch is clean from all dust, and other foreign materials.
12. Close ATS enclosure door and tighten all door screws.
13. Visually verify on the transfer switch enclosure that there are no gaps, holes, or potential for water
ingress.
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