Operating instructions

3210-10
8
60706-237
Two (2) Regulator System (L.P. Vapor only)
12 3 4
UNIT TANK 10-15 lbs 7-11 in 7-11 in
OFF PSI 4-6 oz 4-6 oz
STARTING TANK 10-15 lbs 7-11 in 7-11 in
PSI 4-6 oz 4-6 oz
NO LOAD TANK 10-15 lbs 7-11 in 7-11 in
PSI 4-6 oz 4-6 oz
FULL TANK 10-15 lbs 7-11 in 7-11 in
LOAD PSI 4-6 oz 4-6 oz
Natural Gas
134
UNIT OFF LINE PSI 7-11 in 7-11 in
4-6 oz 4-6 oz
STARTING LINE PSI 7-11 in 7-11 in
4-6 oz 4-6 oz
NO LOAD LINE PSI 7-11 in 7-11 in
4-6 oz 4-6 oz
FULL LOAD LINE PSI 7-11 in 7-11 in
4-6 oz 4-6 oz
Remember that whichever fuel delivery system or
type of vapor fuel used, the fuel pressure at the
demand regulator installed on the engine generator
must be between 4 and 6 oz. (7-11 inches of water
column). Any lower pressure and the unit will starve
for fuel under load. Any higher and the unit will ‘fl ood’
when attempting to start.
LP TANK SIZING
Once above the minimum acceptable size, the size
of L.P. tank used will generally depend on how long
you want the unit to run without refi lling. The tank
sizes shown below are the smallest recommended
tank sizes based on the outside temperature. Keep
in mind the colder it gets the slower L.P. will vaporize.
This is the reason for the larger tanks at low tempera-
ture. Minimum sizing is not based on running time.
Temp f. 60 deg 30 deg 0 deg -20 deg
150 gal 250 gal 500 gal 1000 gal
CHANGING FUEL TYPES
These engine generator sets are designed to run
on three different fuels; gasoline, natural gas or LP
vapor. They may be easily changed from one fuel to
another.
FROM GASOLINE TO LP/NG
1. With the engine running turn off the gasoline
fuel valve.
2. Run the engine until it runs out of fuel.
3. Remove the pipe plug from the demand
regulator.
4. Install locally approved fl exible fuel line.
5. Connect the LP/NG vapor fuel line.
6. This unit have two different hose fi ttings on
the top of the demand requlator. One is for
LP and one is for Natural Gas. Make sure the
hose is attached to the proper fi tting.
7. Turn on the vapor fuel.
8. Start the engine.
9 . Apply the load to the generator.