Winco PSS6HEE - Manual (Page 7)

Page 5 60707-116 8201-00
OPERATING LOCATION
The engine-generator models covered in this manual
were designed for portable use. DO NOT INSTALL OR
OPERATE THESE UNITS INDOORS. The unit should
be stored in a dry location. During a power outage
move the unit outdoors to a flat dry location such as a
driveway, concrete pad or sidewalk. We recommend
installing the optional wheel kit provided or equivalent
for ease of handling.
The fuel source should be as close as possible to the
outdoor operating location. This will reduce the
installation cost of fuel runs. Connect the fuel supply
line to the inlet of the fuel demand regulator on the unit
using a locally approved flexible fuel line (see table for
recommended line size). The pressure supplied to
the demand regulator must be FOUR TO SIX
OUNCES or 7 to 11 INCHES W.C. (water column).
The primary regulator at the fuel supply must be
capable of delivering the proper volume of fuel at this
pressure.
Have your local fuel supplier install a protected fuel
connection at the outside operating location. He should
also install a lockable fuel shutoff valve at the
connection point. Have your fuel supplier permanently
install a flexible fuel line to the demand regulator on the
engine generator set.
INSTALLING THE FUEL LINE
DANGER: PERSONAL INJURY
Units that are intended to be run unattended MUST
have an electric fuel solenoid installed. This solenoid
MUST be wired to AUTOMATICALLY turn off the fuel
whenever the engine stops. See page 9 for additional
information.
Unit location will determine the size of fuel line that is
required to supply the engine with a constant fuel
pressure. Refer to the tables below for fuel line size,
and recommended tank size. For distances of 100 feet
and over, a two regulator fuel system is recommended.
This system consisting of a primary 10-15# regulator at
the tank and a 6 ounce secondary regulator installed
about 10 feet from the generator. You need to run a 3/4
inch line or larger from the secondary regulator to the
engine-generator set. When a two (2) regulator fuel
system is used, a fuel line size of 3/8 inch is generally
adequate for distances up to 300 feet. The line size
from the following table applies to the distance from the
second regulator to the fuel solenoid valve.
The fuel line used to connect the supply line to the
fuel solenoid must be a locally approved flexible fuel
line. Products used will vary in different regions
depending on availability and local codes. Consult with
your local fuel supplier to insure complete compliance
with ALL codes.
1. Remove the pipe plug from the solenoid valve.
2. Connect the flex fuel line to the solenoid valve.
DANGER: PERSONAL INJURY
Do not use galvanized pipe in the fuel line runs. The
galvanized coating will become eroded and flake off,
causing possible obstruction or damage to the regulator
or fuel valve. The obstruction could cause an inopera-
tive engine or an explosive fuel leak.
Size of pipe required for generators operating on
natural gas/LP gas.
Length of Fuel Line* Fuel Line Size
less than 25 feet 3/4 inch black pipe
25 to 100 feet 1 inch black pipe
over 100 feet not recommended
*allow an additional 3 feet for each standard elbow.
Do not use ‘street ells’ (restrictive)
DANGER! - FIRE - PERSONAL INJURY -
Be careful when sealing gas joints. Excessive sealing
compound can be drawn into the solenoid, regulator or
carburetor causing an engine malfunction or dangerous
fuel leak.
FUEL PRESSURE
Correct fuel pressure cannot be stressed enough.
The most common cause for inoperative systems is an
inadequate or incorrect fuel pressure. Power and
performance of the engine is in direct relation to the
correctness of the fuel system. Shown below is a block
diagram of a typical L.P. or N.G. installation.
Reference numbers 1 through 3 in the block
diagrams above are fuel lines supplied by customer.
Reference number 4 & 5 are already installed on your
engine generator set.