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General Information
Only qualified service personnel may install, operate and maintain this equipment.
Failure to follow proper installation requirements could result in death, serious injury,
ELECTROCUTION. VERIFY ELECTRICAL SYSTEM IS PROPERLY GROUNDED
BEFORE APPLYING POWER. FAILURE TO DO SO WILL RESULT IN DEATH OR
DUAL FUEL SYSTEM
This unit is equipped with a dual fuel system. This type of fuel system allows the unit to run on either natural gas
(primary) or LP liquid (secondary). In the event that the primary source becomes unavailable, the unit will automatically
switch to the secondary source. It can do so while in operation.
Natural Gas (Well Gas) Fuel System
Natural gas is supplied from a utility supply line or well site in its vapor state through in-ground piping. The vapor
enters the large fuel inlet located on the right side of the unit frame.
LP Liquid Withdrawal Fuel System
LP is supplied as a liquid in pressurized tanks. The liquid must be converted to its gaseous state before it is introduced
into the engine carburetor. The unit is equipped with a vaporizer converter to accomplish this. The LP liquid enters
the fuel system through the small fuel inlet located on the right side of the frame. As the liquid passes through the
vaporizer, heated engine coolant is passed through the vaporizer to provide the necessary heat for conversion of
the fuel from a liquid to a gaseous state.
EXPLOSION AND FIRE. FUEL AND VAPORS ARE EXTREMELY FLAMMABLE AND
EXPLOSIVE. ADD FUEL IN A WELL VENTILATED AREA. KEEP FIRE AND SPARK
AWAY. FAILURE TO DO SO WILL RESULT IN DEATH OR SERIOUS INJURY. (000105)
IMPORTANT: THIS UNIT IS NOT DESIGNED TO OPERATE ON LP VAPOR. If your LP supply tank does
not have a liquid withdrawal system, a licensed LP supply company will need to install the correct fitting to
allow for it. For special fuel system configurations, contact Generac Mobile Products Technical Support.
DC FUSES
Located inside the control panel, the fuses protect the control panel wiring and components from damaging overload.
For fuse location and identification, see
GENERATOR AND LOAD COMPATIBILITY
This unit is a revolving field, alternating current type generator set. The generator is designed to supply electrical
power for the operation of compatible electrical loads.
The generator must be fully compatible with the rated voltage, phase rotation, and frequency of the connected
electrical loads. The generator, connected electrical devices, or both, can be damaged if voltage, phase, and frequency
are not compatible.
See the data label affixed to the unit for rated AC voltage, wattage, amperage, number of phases, etc.
20
WARNING
and damage to equipment or property. (000182)
DANGER
SERIOUS INJURY. (000152)
DANGER
Figure
7.
MGG155/210 Operating Manual
35319 C
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Troubleshooting
