Owner`s manual

Page 6
HIGH TEMPERATURE OPERATION
Be sure airflow to and from generator is not obstructed. Keep the
generator as free from dirt as possible. Engine housing must be
properly installed and undamaged.
LOW TEMPERATURE OPERATION
To aid in cold weather starting, use the correct SAE oil. Use only fresh
unleaded gasoline. Diesel engine use No2 diesel in normal weather
and No1 in cold weather. If possible, keep the generator set in a warm
location until needed and they move the unit outside and immediately
start the engine.
IDLER OPERATION
All LR Contractor units feature an easy idle that slows the engine
speed down when there is no electrical load on the generator. Diesel
powered units, medium duty A, LA and LR units and three phase units
do not have a low idling system. The generator set should be started
with the idler switch in the off position. After the engine has warmed
up (2-3 minutes), turn the idler switch to the on position. The engine
speed will decrease if there is no load on the generator. On some
models there is a time delay of about 10 to 12 seconds before the
engine will idle down. When an electrical load is applied, the engine
speed will automatically return to normal operation and produce the
rated voltage. A battery MUST be connected to the engine for the idler
to work on all 7000, 8000, 10000, 12000, 15000 and 18000 watt
models.
OPERATING SAFE GENS
Start the engine and verify that the volt meter
reads 240 volts. The ground fault sensing module on the control panel
should have a green light illuminated. All receptacles 120 and 240
volts will be operating. If a ground fault occurs on any receptacles, a
red light will be illuminated on the ground fault sensing module and the
main circuit breaker will trip showing a red switch with all the power to
all receptacles cut off. To correct the ground fault, with the engine
running, remove all loads to all receptacles, push reset on the ground
fault sensing module and push the main circuit breaker to ON (red
should not be showing on the main circuit breaker). If the ground fault
continues with no load on the generator, consult an authorized service
station. If the ground fault occurs again with a load plugged into any
receptacle, disconnect the load, reset the ground fault sensing module
and the main circuit breaker and try a different load into any
receptacle. With this other load and no ground fault occurring the
ground fault is in the original extension cord or load and must be
corrected or replaced before using this generator set.
It is recommended to regularly, at least once a month, start the
engine, press test on the ground fault sensing module and then press
reset and push the main circuit breaker to ON.
LP AND NG OPERATION
Liquid propane(LP) and natural
gas(NG)operation OUTDOOR OPERATION
ONLY, all installations must be done by a qualified electrician or
contractor and MUST comply with all national and local codes,
standards and regulations. This is not a do it yourself project!
All units have a special vapor fuel carburetor for LP or NG operation
with a vacuum safety shut down and an electric solenoid fuel shut
down. All incoming fuel supplies, both LP and NG must have a
primary fuel regulator with output of 11 inches of water column
pressure. The regulator on the generator is a secondary regulator.
Fuel pressures too high or too low will cause problems with the
generator set. There must be a manual fuel shut off valve within sight
of the generator set. The flexible fuel line included with the generator
set MUST be used as vibration occurs and will cause solid fuel pipe
connections to break if the flexible fuel line is not used. The incoming
fuel line is recommended to be 1.0 inches. The actual fuel connections
on the generator set are 3/4” NPT. Do not have the incoming fuel line
near the engine muffler or manifold for safety.
After all fuel line connections have been made but before the flexible
fuel connection is connected to the hard fuel pipe connections,
ventilate the area, be sure there are no open flames, no smoking, no
pilot lights and turn on the fuel line for about 5 to 10 seconds to blow
out any pipe tape or pipe dope out of the lines. Be sure to wear
protective glasses. This will prevent dirt from entering the fuel
regulator on the generator set. Do not remove the cover from the
solenoid valve until you are ready to make pipe connections.
The mounting of the LP and NG generators are identical to the
gasoline units.
There is no need to use a choke to start either the LP or NG units. DO
NOT adjust the KN regulator as it has been preset. Be sure to check
all connections for leaks with soap and water and stop any leaks. All
LP and NG units are derated as the LP or NG fuel reduces engine out
put slightly versus gasoline.
Operate only in well ventilated area. LP gas is heavier than air and
may settle in low places. Avoid cutting or welding near fuel lines or
tanks. When servicing shut off all fuel lines, eliminate all possible
outside sources of ignition and utilize qualified LP and or NG
personnel. See connection drawing for the location for the flexible fuel
line.
INSTALLATION
Indoor installations are prohibited. The
generator does not have output capacity to power your entire home.
Most home utility commercial electric service is in excess of 100 amps
at 240 volts, which is in excess of the generator set. Because of this,
only key items can be powered during a utility power outage up to the
ampere rating of the generator. Installing and wiring a stand by
generator is NOT a do it yourself project. Consult a licensed
electrician or electrical contractor.
GENERATOR AND UTILITY POWER ISOLATION METHODS
If utilizing existing home circuits to power the
emergency load provide a positive means of
insuring that the commercial power and portable
generator is never fed to the load at the same time. Never connect the
generator output to any live home electric circuit(s). The usual means
of providing this isolation is to incorporate a suitably rated double pole
double throw manual transfer switch UL listed. Figure 3 The National
Electrical Code, the state of California, most state and local codes and
Canadian Hydro requires an isolation switch between the generator
and the utility line. A potential hazard exists during a power outage if
the generator output is connected to the dead home circuits and no
means is provided to isolate the home circuits from the commercial
DANGER
!
FROM MAIN
POWER LINE
TO MAIN
FUSE PANEL
WHITE
RED
BLACK
WHITE
RED
BLACK
NORMAL
OFF
GENERATOR
BLACK
RED
WHITE
FROM
GENERATOR
TYPICAL MANUAL TRANSFORMER SWITCH
(CUSTOMER SUPPLIED)
FIGURE 3
CAUTION
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CAUTION
!
CAUTION
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CAUTION
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CAUTION
!
CAUTION
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