9
REV D
60706-231
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 charged. If the generator is
being run continuously on a very light load, it is often advisable to lower
the operating speed slightly.
CAUTION: EQUIPMENT DAMAGE
SPEED ADJUSTMENTS SHOULD ONLY BE MADE BY A QUALIFIED
SERVICE TECH.
Whenever making any speed adjustments, check the
unit with a voltmeter and a frequency meter or a tachometer and be
sure the voltage and speed are correct.
Lower voltage may damage both the generator and any load connected
to it. Running the engine at excessively 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 generating 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 /- 2 seconds per minute.
CONNECTING THE LOADS
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 the 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 provided to allow
the connection of loads to the generator on the EC18000VE. 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.
With the EC22000VE, the load wiring must be wired directly in the 80
Amp breaker mounted in the control box on 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 locations 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 install your neutral to ground bond. You must wire four
separate wires from the generator (2-hot, 1- 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 shot 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.
Receptacles have been provided to allow loads to be connected to the
generator. The loads should be added one at a time. 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 in 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 voltage and amperage
requirements on their individual nameplates. When in doubt, consult
the manufacturer or a local electrician. The nameplate amperage rating
for electric motors can be misleading. See “Starting Electric Motors” in
the Unit Capabilities.
These engine-generator sets are inherently self regulating based on
engine speed. The engine governor will automatically adjust itself to
the load. No harm to the generator will result if it is operated with no
load connected. The generator is a limited source of electrical power,
therefore, pay special attention to the receptacle and generator ratings.
GROUNDING
All units must be grounded. Different installations will require different
grounding requirements. Depending on your installation, ensure that
the ground meets your governing codes.
WIRING
For your safety, all wiring must be done by a qualified electrician
and conform to the National Electric Code and comply with all state
and local codes and regulations. Check with local authorities before
proceeding.
CAUTION: EQUIPMENT DAMAGE
Failure to properly limit and balance the load a[[lied 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.
