Global Power Technologies START-UP AND OPERATION
302842 Rev0 | Sentinel Page 27 of 61
Figure 17 - Fuel System Assembly
Refer to Figure 3, Figure 16 and Figure 17 and follow these steps to start the Sentinel TEG:
1. Remove the electronics enclosure cover plate.
2. Locate the OCV/RUN mode switch, SW200, at the top left of the main electronics board and
confirm that the switch is set to OCV.
3. Check that the manual shut-off valve from the fuel supply line to the fuel filter is open.
4. Open the manual shut-off valve located below the Sentinel TEG’s regulator. Check the Sentinel
TEG pressure gauge, located inside the instrumentation enclosure to ensure that fuel pressure is
present.
NOTE: Close this manual shut-off valve if the Sentinel TEG needs to be shut down.
5. Press the red Preheat Cycle button located on the bottom right corner of the main electronics
board. The red Preheater status indicator LED located above the Preheat Cycle button should
turn on.
6. Wait 3 minutes for the catalytic pad in the catalytic cartridge to preheat. The red Preheater
status light on the electronics board will blink for 10 seconds after 3 minutes to indicate that it is
time to supply fuel.
7. Press and hold the manual plunger on top of the safety shut-off valve. Hold the plunger down
until the red Preheater status indicator LED light turns off. A tool is provided by GPT to be
wedged between the plunger and the battery bracket, see Figure 18. It is designed such that it
cannot be left in place to close the Instrumentation Cabinet door.
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