Winco EC22000/A - Manual (Page 9)

7 60706-23 224-00
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 equip-
ment and clocks will be affected if correct RPM is not
maintained. See Load vs. Output chart.
Although individual units and models vary slightly,
the normal voltage and frequency of the engine-gen-
erator described in this manual are approximately as
follows, under varying loads:
LOAD VS. OUTPUT
Generator
Load
Speed
(RPM)
Frequency
(Hz)
Voltage
None 3690 61.5 125V
Half 3600 60.0 120V
Full 3510 58.5 115V
The speed of the engine was carefully adjusted at
the factory so that the generator produces the proper
voltage and frequency. For normal usage, the speed
setting should not be changed. If the generator
is being run continuously on a very light load, it is
often advisable to lower the operating speed slightly.
Whenever making any speed adjustments check the
unit with a voltmeter or tachometer and be sure the
speed is correct.
Lower voltage may damage both the generator and
any load connected to it. Running the engine at ex-
cessively high speeds results in high voltage, which
may significantly shorten the life of appliances being
used.
Output voltage should be checked periodically to
ensure continued proper operation of the generat-
ing plant and appliances. If the generator is not
equipped with a voltmeter, it can be checked with a
portable meter. Frequency can be checked by using
an electric clock with a sweep second hand. Timed
against a wrist watch or a stop watch, the clock
should be correct within +/- 2 seconds per minute.
CONNECTING THE LOADS
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.
A 60 amp receptacle (NEMA 14-60) has been pro-
vided to allow the connection of loads to the gen-
erator on the EC8000. This receptacle is a 4 wire
full load receptacle protected by a 60 amp breaker
mounted in the control box on top of the generator.
On the EC22000 the load wiring must be wired
directly in the 80 amp breaker mounted in the control
box on the top of the generator When wiring directly
to the circuit breaker in the box be sure to connect a
neutral wire and ground wire to the appropriate loca-
tions in the control box.
Your individual loads must be protected by individual
circuit breakers mounted in some type of distribution
panel. This location will also be where you will in-
stall your neutral to ground bond. You must wire four
separate wires from the generator (2 -hot,- neutral
and 1-ground) to the distribution panel.
APPLYING THE LOADS
Allow the engine to warm up for two or three minutes
before applying any load. This will allow the engine
to reach normal operating temperature and oil to
circulate throughout the engine. A short warm-up
time will permit the engine to work more efficiently
when the load is applied and will reduce the wear in
the engine, extending its life.
If a large motor is being started or multiple motors
are being started, they should be started individually
and the largest should be started first.
CAUTION: EQUIPMENT OVERLOAD
Keep the generator load within the generator and
receptacle nameplate rating. Overloading may
cause damage to the generator and/or the loads .
Most electric tools and appliances will have the volt-
age and amperage requirements on their individual