Gillette Generators SPP-180 - Manual (Page 15)

PAGE 15
A flexible LPG fuel line is furnished for
installation between the LPG fuel line & generator fuel
input.
CAUTION: Make sure this flexible fuel line is
installed in a horizontal position, without bends.
A bend of any kind, in this flexible line could lead
to an eventual crack in the bend, causing a
possible fuel leak. See Figure 6 for recommended
installation.
Make sure fuel line installation includes an on/off
manual gas valve at both the LPG tank and at
connection point of generator.
All new installations, plus any future repair or
troubleshooting procedures must include an LPG
manometer test. This test should be conducted after
all other LPG appliances are turned on. After all
appliances are working, start the generator. If
manometer stays within 10 to 12 inches water column
with full load applied to generator, it’s a good
installation. (See Figure 6) If manometer reading
falls below 10 inches water column while generator is
cranking or running, it may indicate the primary
regulator on LPG tank is wrong or the LPG tank is too
low to produce the vapors required to operate
generator.
If manometer reading stays within 10 to 12 inches
water column, but generator will not run properly, it
may indicate fuel line length is too long or fuel line
diameter is too small to deliver proper volume of fuel.
Check calculations from charts in Figure 4 and 5.
Figure 6
NOTE: After completion of all gas tests, remove
manometer and replace blank plug, using fresh pipe
sealant.
Climates that have snow and ice build-up, along
with sub-zero temperatures should have LPG fuel
pipe protection against freezing. The generator end
of the hard piping installation should include a
sediment trap to drain any condensation and a line
filter. (See Figure 6)
Best installations happen when electric utility
meter and LPG tank are reasonably close (20 Ft. to 50
Ft.), as it results in short runs for both electric wires
and LPG fuel lines. When these two identities are far
apart, always choose to locate generator as close to
the LPG tank as possible, because installation costs
are lower when increased wire size must be used for
longer runs rather than increased fuel pipe dia.
GENERATOR PERFORMANCE
When matching a generator to a specific application,
whether gross intermitted or gross continuous power
is used, it is important to derate this power output for
the following adverse conditions:
Engine power rating after “break-in” is usually
within 3% of engine published rating.
Temperature and altitude directly derate
generator power. Derate 3½% for each 1,000 feet
above 326 feet, over sea level. Derate 1% for every
10º F (5.6º C) over 77º F (25º C).
Generator location is important. If it is located
too far from fuel source, fuel line may not deliver
adequate fuel. If it is located too far from electric
distribution box, the electric power lines may not
deliver adequate electric power. Both examples will
directly affect
generator power.
Read section
“The Gaseous
Fuel System
Installation” on
page 12 & 14 for
full details.
All
generator
access doors are
locked,
and are
opened with a common key for
all locks. Notice the door lock (in the locked position)
has matching dot system in alignment. Insert the key
into lock and turn counterclockwise. Remove the key
and note, the dots are now out of alignment. Re-insert
PREPARE THE GENERATOR
FOR OPERATION
Stationary Dot
Dot-aligned,
Locked
Position
Un-Locked
Position
Raised
Finger
Hold
ACCESS TO HOUSING INTERIOR
Sediment Trap
Dedicated LPG
Fuel Line from
LPG Tank
Manometer
Reading
Must Be 6”
to 7” Water
Column
Gas Fuel To
Generator
On/Off Valve
Furnished
Flexible
Gas Pipe
(without
bends or
angles)
Manometer Port: Remove
Blank Plug And Insert
Manometer Plug
Line Filter