10
OPM-138/B
them. Please note that the 3-wire 240 Volt receptacle(s)
on these units are designed to power only 240 Volt
tools. There are two hot leads and a ground wire, but
no neutral connection, in the 3-wire 240Volt receptacle.
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 (14-60P).
NOTE:
Never attempt to use the 240 Volt 3-wire
receptacle to wire into a building. This is a GFCI circuit
and is designed for 240 Volt output only. It has no neutral
connection. If you attempt to draw 120 Volt from this
receptacle, the GFCI breaker will trip.
2. If the generator set is connected to an existing
distribution system, a fully isolated manual transfer
switch must be installed. The transfer switch prevents
damage to the generator and the 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 generator. When
installing the generator at these sites, a secondary
emergency distribution panel may have to be installed.
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 amperage 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 amperage
capabilities of your unit.
CAUTION: EQUIPMENT DAMAGE
Failure to properly limit and balance the load applied 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. Improper loading of the generator
set constitutes abuse and will not be covered by warranty.
YOURGEN
The WINCO YourGen meter allows you to see useful
information about your generator from the front panel
by displaying RPMs, Voltage, frequency, load, hours, and
maintenance reminders. It also has the ability to display
warnings if any parameter gets outside of normal operation
range.
Cycle Button ( ) -
During normal operation, the display will toggle through
on fixed delay. If you want to see any specific item, you
can press the cycle button to move it to that setting. Once
the display is selected, the delay before it starts toggling is
approximately 5 seconds. This button is also used to reset
maintenance reminders.
RPM -
The meter will display the RPMs of the engine. This number
is calculated based upon frequency and is not directly
measured from the engine. The engine-generator must be
run at the correct speed in order to produce the proper
electrical voltage and frequency.
CAUTION: EQUIPMENT DAMAGE
The output voltage should be checked to ensure the
generator is working properly prior to connecting a load to
the generator. Failure to do so could result in damage to
equipment plugged into the unit and possible injury to the
individual.
Operating Speed
All engines have a tendency to slow down when a load
is applied. When the electrical load is connected to the
generator, the engine is more heavily loaded, and as a
result, the speed drops slightly. This slight decrease in
speed, together with the voltage drop within the generator
itself, results in a slightly lower voltage when the generator
is loaded to its full capacity than when running no load.
The slight variation in speed also affects the frequency
of the output current. This frequency variation has no
appreciable effect in the operation of motors, lights, and
most appliances. However, electronic equipment and clocks
will be affected if correct RPM is not maintained. See Load
vs. Output chart.
