Rheem RESIDENTIAL GENERATOR SYSTEM GEN12S - Manual (Page 18)

16
For a 15kW Generator:
4. Remove cap from LP inlet on T-valve (Figure 13).
5. Remove fuel line from NG inlet.
6. Place cap from LP inlet onto NG inlet.
7. From oil fill access area, pull fuel line out of top hole.
8. Remove and reverse fuel hose bushing and plug in
sheet metal bulkhead. (Plug in top hole, bushing in
bottom hole.)
9. Insert fuel hose in bottom hole towards fuel regulator.
IMPORTANT: Failure to route fuel line through bottom hole
may cause the fuel line to kink. When tightening fuel hose
fittings make certain the fuel hose does not twist or kink. If
the fuel line kinks, the generator may start but will not
operate properly.
10. Connect fuel line to LP inlet.
11. Reinstall 15 Amp fuse in control panel.
12. Set generator's system switch to AUTO.
13. Close control panel and oil fill access doors.
The system is now ready to operate automatically using
LP fuel.
Initial Start-Up (No Load)
Begin testing the system without any electrical loads
connected, as follows:
1. Set generator’s main circuit breaker to its ON (closed)
position.
2. Install 15 Amp fuse in control panel.
3. Set generator’s system switch to AUTO.
4. Push MANUAL OVER-RIDE switch on generator control
panel.
NOTE: When the generator system is started for the very
first time, it will require that air in the gaseous fuel lines be
purged. This may take a few minutes.
5. DO NOT crank engine for more than 10 seconds, then
pause for 10 seconds to reduce heat in the starter.
6. Repeat process until engine starts.
7. Listen for unusual noises, vibration or other indications
of abnormal operation. Check for oil leaks while engine
runs.
8. Let engine warm up for about five minutes to allow
internal temperatures to stabilize.
9. Connect an accurate AC voltmeter and a frequency
meter to check generator output at load side of circuit
breaker. Voltage should be 239-262 Volts, frequency
should be 62.0 - 62.5 Hz.
NOTE: If either parameter is outside these ranges, perform
the Engine Adjustments described below.
10. Check generator output between one of the generator
connection lugs and the neutral lug, then between the
other generator connection lug and the neutral lug. In
both cases, voltage reading should be between
121-131 Volts.
11. Push and hold MANUAL OVER-RIDE switch on
generator control panel again until engine stops.
IMPORTANT: DO NOT proceed until you are certain that
generator AC voltage and frequency are correct and within
the stated limits. To obtain the proper generator frequency,
see Engine Adjustments.
Figure 13 — T - Valve