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Global Power Technologies
ASSEMBLY AND INSTALLATION
302842 Rev0 | Sentinel
Page 20 of 61
3.7
CONNECTING THE FUEL SUPPLY
WARNING!
Use only natural gas to fuel the Sentinel TEG. The inlet pressure to the Sentinel TEG
must never exceed 25 psig [172.4 kPag].
Before connecting the fuel supply to the fuel filter, review
Section 2.3 and ensure that the supply fuel complies with
the Sentinel TEG’s standard specifications as outlined in
Section 2.4. Use only natural gas as fuel and ensure that inlet
pressure will not exceed 25 psig [172.4 kPag].
The fuel supply line connects to the manual shut-off valve on
the fuel filter, which is equipped with a 1/4” NPT connector.
Fuel line and fittings from the fuel supply to the fuel filter’s
inlet valve are not included with the TEG.
NOTE: Follow local regulations when installing fuel
piping.
Connect the fuel supply to the Sentinel TEG as follows:
Inspect fuel lines and fittings to ensure that they are
free of foreign materials.
Apply thread sealant to the fuel line threads as
illustrated in Figure 10 to minimize fuel line
contamination.
Connect the fuel line to the ball valve at the inlet to the
fuel filter, below the flow arrow.
Check all joints for leaks using a commercial leak
detector fluid such as Snoop®.
Purge fuel lines of all air.
NOTE:
Use thread sealant that is approved for use with gaseous fuels. Tape is not
recommended.
CAUTION!
Check all fuel system fittings for leaks before starting the Sentinel TEG. Check all
fittings downstream of the shut-off valve again after start-up when the unit is
running.
CAUTION!
The Sentinel TEG and its manual shut-off valve must be disconnected from the gas
supply piping system during any pressure testing of that system at test pressures
more than 0.5psig [3.5 kPag].
Figure 10 – Applying Thread Sealant
Figure 9 – Fuel Filter Connections
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