Briggs & Stratton 40204 - Manual (Page 16)

INSTALLATION
16
For a 15kW Home Generator System:
4. Remove cap from LP inlet on T-valve.
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 and
route it through bottom hole.
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.
8. Connect fuel line to LP inlet (Figure 13).
9. Reinstall 15 Amp fuse in control panel.
10. Set generator's system switch to AUTO.
11. 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 control panel.
NOTE: When the Home 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 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.
Engine Adjustment
There are regional variances in the composition of natural
gas. Each HGS unit is adjusted at the factory for NG
operation. If the generator output voltage or frequency
measured during Initial Start-Up (paragraph #9) is outside
the listed ranges, the combustibility of the gas supplied at the
installation site may be substantially different.
To adjust the engine for this difference, proceed as follows.
1.
Open the oil drain and control panel access doors.
2. Remove the four screws that hold the circuit breaker
cover to the air intake guard (Figure 14).
Figure 14 — Accessing Back of Circuit Breaker
Figure 13 — T - Valve