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and generator ratings. The nameplate rating can be
obtained through a single receptacle as long as the
receptacle amperage rating is not exceeded.
GROUNDING
All units must be grounded. Drive a 3/4 or 1” cop-
per pipe or rod into the ground close to the engine-
generator set. The pipe must penetrate moist earth.
Connect an approved ground clamp to the pipe.
Run a no. 10 Awg wire from clamp to the generator
ground lug on the receptacle panel. Do not connect
to a water pipe or to a ground used by a radio sys-
tem. The engine-generators covered in this manual
were designed primarily for portable use. If you
are connecting into a building wiring system that is
already grounded using the L14-30, 4 wire plug, you
do not have to ground the unit.
WARNING: PERSONAL DANGER
DO NOT OPERATE THIS GENERATOR INDOORS.
The unit should be stored in a warm dry location.
During a power outage, move the unit outdoors to a
fl at dry location such as a driveway or sidewalk.
WIRING
Plug your tools such as drills, saws, blowers, sump
pump and other items to be powered directly into
the generator receptacles. Before plugging in all
the tools and cord sets, recheck the rating of the
generator set. Be sure it can handle the intended
load and is compatible with the voltage, phase, and
current ratings. ‘Hard Wiring’ this unit directly into
a home or a temporary construction site electrical
system is
NOT A SIMPLE DO-IT-YOURSELF JOB.
For your safety, all wiring must be done by a quali-
fi ed electrician and conform to the National Electric
Code and comply with all state and local codes and
regulations. Check with local authorities before
proceeding.
WARNING: PERSONAL DANGER
A fully isolated, double pole double throw manual
transfer switch must be installed any time a genera-
tor is being connected to an existing distribution
system.
1. These engine generator sets are designed for
portable use. Receptacles are provided on the con-
trol panel to permit 120 volt portable appliances and
tools to be plugged directly into them. Please note
that the 4-wire 120/240 volt receptacle on these units
are designed to power both 120 or 240 volt loads.
The plug for this receptacle can be wired for either
120 volt, 240 volt, or a combination of 120 and 240
volt loads depending on how the plug is wired.
A 4-wire receptacle (two hot, one ground, and one
neutral) has been provided on the control panel
for use in temporary power applications requiring
120/240 volt power. Consult a licensed electrician
for wiring the TemPower plug and connecting it as
temporary service. To connect these units directly to
an un-powered, isolated construction site TemPower
panel, have your electrician connect to the control
panel using a 120/240 volt, 4-wire twist-lock plug
(L14-30P).
2. If the generator set is be connected to an existing
distribution system, a fully isolated manual trans-
fer switch must be installed. The transfer switch
prevents damage to the generator and other circuit
components if main line power is restored while the
generator is connected. Installing a transfer switch
also permits the use of normal fusing.
3. Many homes and construction sites are wired
for at least 60 to 100 Amp entrance service, much
greater than the capacity of this portable genera-
tor. When installing the generator at these sites, a
secondary emergency distribution panel may have to
be installed, such as the Emergency Transfer/Service
(ET/S) system available through your WINCO dealer.
The emergency distribution panel must be installed
by a licensed electrician according to all applicable
codes. The electrician will move the critical circuits
to be powered during the outage to the emergency
panel. Keep in mind only a limited amount of amper-
age is available from the generator set. Some circuit
breakers may still have to be turned off to prevent an
overload on the generator during the initial start up.
See the nameplate on your generator for the amper-
age capabilities of your unit.
CAUTION: EQUIPMENT DAMAGE
Failure to properly limit and balance the load ap-
plied to the generator will cause the generator to
produce low voltage and may damage the engine
generator set. It may also cause severe damage to
the loads connected to the generator at that time. Im-
proper loading of the generator set constitutes abuse
and will not be covered by warranty.
