![Generac Power Systems MGG155 Operating Manual Download Page 29](http://html.mh-extra.com/html/generac-power-systems/mgg155/mgg155_operating-manual_2209224029.webp)
35319 C
MGG155/210 Operating Manual
23
Section 3 - Operation
The operation of this unit should only be performed by an authorized operator; that is, someone who has been
properly trained by an Independent Authorized Service Dealer. Contact your local Independent Authorized Service
Dealer for assistance in training authorized operators. Read the operating manual thoroughly and understand all
instructions before operating the equipment.
The following instructions assume that the unit has been properly set up, serviced, tested, adjusted, and otherwise
prepared for use by an Independent Authorized Service Dealer. Read the safety information carefully before
attempting to operate this equipment.
PRESTART CHECKLIST
When the initial installation is complete, these checks must be performed before starting the engine. These checks
are not required before each start, only after the initial installation.
CAUTION
Do not apply high voltage to windings in moisture-saturated conditions. Serious damage to
genset and property can result. (000153)
Note:
These precautions are extremely critical in locations such as seaboard installations and other high humidity
areas. Some installations will be in environments that are much more corrosive than others.
Verify battery disconnect switch is turned ON.
Verify unit is positioned in a stable manner.
Verify proper clearance on all sides and top of enclosure.
Verify unit is a safe distance from any flammable or combustible material.
Verify no load is connected to unit.
Inspect the engine and genset and verify there are no loose wires or components. Tighten if
necessary.
Verify engine oil level is correct. See
Verify engine coolant level is correct. See
.
Verify the controller is in STOP mode by pressing the STOP button.
Verify the fuel valve is open and the pressure and flow rate are correct.
Remove all tools, rags, etc. from inside the unit enclosure. Close and secure all enclosure doors prior
to starting the unit.
MANUALLY STARTING THE UNIT
This unit is designed to operate on Natural Gas (NG)/well gas or LP liquid. At oil well sites, LP liquid is typically used
to start the unit until the pump jack brings the well gas (natural gas) up to the surface. The unit fuel system will detect
when there is sufficient pressure to switch to natural gas as the primary fuel source.
Natural Gas (Well Gas) Start Up
If there is sufficient pressure in the well gas fuel line (10-20 psi [69-138 kPa]), the unit can be started directly on well
gas. Follow the steps below:
1. Open the manual ball fuel valve located just inside the frame. See
2.
Check for fuel leaks.
3.
Press the START on the digital controller. The controller will sense the type of fuel entering the system and
will display “ALI NG Fuel Select”.
Note:
If the unit will not start, verify the Fuel Select switch is set to NG or AUTO. See
.
Discount-Equipment.com