Gillette SPH-120 Operation And Installation Manual Download Page 15

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PAGE 15

A flexible LPG fuel line is furnished for installa-

tion between the LPG fuel line & generator fuel input.

CAUTION:

Make sure this flexible fuel line is in-

stalled 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 connec-
tion point of generator.

All new installations, plus any future repair or

troubleshooting procedures must include an LPG ma-
nometer test. This test should be conducted after all

other LPG appliances are turned on. After all appli-
ances 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 wa-

ter 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 ma-

nometer 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 sedi-
ment trap to drain any condensation and a line filter.
(See Figure 6)

Best installations happen when electric utility me-

ter 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 genera-

tor 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 ade-
quate fuel. If it is located too far from electric distri-

bution 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 ac-
cess doors are

locked, and are
opened with a
common key for
all locks. Notice

the door lock (in
the locked posi-
tion) has matching
dot system in align-

ment. Insert the

key into lock and turn counter-

clockwise. Remove the key and note, the dots are

now out of alignment. Re-insert the key, turn clock-
wise until dots align, and it’s in the locked position.
All doors are hinged, and once unlocked, will swing

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