Firman The Ultimate 4550, Owner'S Manual, Page: 20 / 44

English Page 17 6XSSRUWVXSSRUW#DUFDXJXVWDFRP
3-Permanent Connection to a large
Propane supply tank:
In the instance that you would need to connect
your generator to a large propane Supply tank,
larger than 20 or 30 lb DOT cylinder, it is
recommended to contact your Gas Equipment
Company. Various equipment for use with LPG,
is required for proper conformance to all NFPA
regulations. Your Gas Equipment Company can
help you select and install the proper regulator,
fittings and connections to meet all the Codes
and manufacturer regulations. Each installation
may be different and will required proper equipment.
Contact your Gas Equipment Company to assure
that you are meeting all NFPA 58 (Liquefied
Petroleum Gas Code) and NFPA 54 (National Fuel
Gas) Codes.
Operation at High Altitude
At altitudes over 5,000 feet(1524 meters), a
minimum 85 octane / 85 AKI (89 RON) gasoline
is acceptable.
The density of air at high altitude is lower
than at sea level . Engine power is reduced
as the air mass and air-fuel ratio decrease .
Engine power and generator output will be
reduced approximately 3.5% for every 1000 feet
of elevation above sea level . This is a
natural trend and cannot be changed by
adjusting the engine
.
At high altitudes
increased exhaust emissions can also result
due to the increased enrichment of the air
fuel ratio
.
Other high altitude issues can include hard
starting
,
increased fuel consumption and
spark plug fouling
.
To alleviate high
altitude issues other than the natural
power loss
,
FIRMAN can provide a high
altitude carburetor main jet
.
The alternative
The part number and recommended minimum
altitude for the application of the high
altitude carburetor main jet is listed in the
table below.
main jet and installation instructions can be
obtained by contacting Customer Support.
Installation instructions are also available in the
Technical Bulletin area of the FIRMAN internet site.
Altitude main jet 1
Altitude main jet 2
208cc
335717004
335717005
Altitude
3000-6000Feet
6000-8000Feet
OPEN
WARNING
When transporting and storing, turn off the
cylinder valve and fuel selector switch, and
disconnect the cylinder.
Contact with liquid contents of the cylinder
will cause freeze burns to the skin.
•
An LPG cylinder not connected for use shall
not be stored in the vicinity of the generator.
•
•
•
Always keep the LPG cylinder in an upright
position.
Do not subject LPG cylinder to excessive heat.
•
In the event of an LPG fire, flames should not
be extinguished unless by doing so the fuel
supply valve can be turned off. If the fire is
extinguished and a supply of fuel is not turned
off, an explosion hazard greater than the fire
•
hazard could be created.
•
Keep a fire extinguisher near the generator
all the time.
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