Product Manual

Activation and Startup
14 Owner’s Manual for Spark-Ignited Stationary Generators
IMPORTANT NOTE: Do not proceed unless genera-
tor AC voltage and frequency are correct and within
stated limits.
Testing Generator Under Load
Proceed as follows to test generator set with electrical
loads applied:
1. Verify generator is in OFF mode. A red LED on
control panel illuminates to verify system is off.
2. Turn off all breakers/electrical loads to be supplied
by generator.
3. Turn off utility power supply to transfer switch,
using the means provided (such as a utility MLCB).
4. Manually set transfer switch to STANDBY, i.e., load
terminals connected to generator’s E1, E2, and E3
(if three-phase) terminals.
5. Press MANUAL on control panel. Engine will crank
and start.
6. Allow engine to warm up for a few minutes.
7. Set generator MLCB (generator disconnect) to ON
(CLOSED). The transfer switch is now powered by
standby generator.
8. Turn on circuit breaker/electrical loads supplied by
generator.
9. Connect a calibrated AC voltmeter and a frequency
meter across terminal lugs E1, E2, and E3 (if three-
phase). Voltage should be approximately unit rated
voltage. Verify with clamp on amp meter to verify
unit is not overloaded.
10. Allow generator run at full rated load for 20–30
minutes. Listen for unusual noises, vibration, or
other indications of abnormal operation. Inspect for
oil leaks, evidence of overheating, etc.
11. Turn off electrical loads when testing under load is
complete.
12. Set generator MLCB (generator disconnect) to
OFF (OPEN).
13. Allow engine to run at no-load for 2–5 minutes.
14. Press OFF on control panel to shut engine down. A
red LED illuminates to verify system is OFF.
Testing Auxiliary Shutdown Switch Operation
The generator is equipped with an independent means of
shutting down prime mover (engine) for use in emer-
gency situations. The shutdown mechanism, when acti-
vated, requires a mechanical reset.
See Figure 3-6. Generators 15 kW and larger are
equipped with two auxiliary shutdown switches. One aux-
iliary shutdown switch (A) is located on the generator roof
above and to the right of the viewing window. The second
auxiliary shutdown switch (B) is inside the control panel
enclosure.
Figure 3-6. Auxiliary Shutdown Switches
Proceed as follows to test auxiliary shutdown switches
after installation to verify correct operation:
1. Verify auxiliary shutdown switches are ON (I).
2. Press MANUAL on control panel to start engine.
3. With engine running, set one auxiliary shutdown
switch to OFF (O). Engine should shut down imme-
diately.
• If engine stops, set auxiliary shutdown switch to
ON (I), clear alarm on controller, and restart engine
to verify generator is operating normally. After veri-
fying normal operation of first auxiliary switch, ver-
ify operation of second auxiliary switch.
• If engine does not stop, auxiliary shutdown
switch is not functioning correctly. Contact an
IASD.
NOTE: Auxiliary shutdown switches are not intended to
be a primary means to shut down generator under nor-
mal operating conditions. Accidental activation of an aux-
iliary shutdown switch will prevent generator from
operating during a power outage.
(000132)
Electrocution. Do not manually transfer under load.
Disconnect transfer switch from all power sources
prior to manual transfer. Failure to do so will result in
death or serious injury, and equipment damage.
DANGER
004900
ON
OFF
ENGINE
SHUTDOWN
004890
A
B