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Control Panel Startup / Testing
9. Turn on circuit breaker/electrical loads to be sup-
plied by generator. Loads are now powered by
standby generator.
10. Connect a calibrated AC voltmeter and a frequency
meter across terminal lugs E1 and E2 (and E3 if
three-phase). Voltage should be approximately unit
rated voltage.
11. Allow generator to 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.
12. Turn off electrical loads when utility supply voltage
is compatible with transfer switch and load circuit
ratings.
13. Set generator MLCB (generator disconnect) to
OFF (OPEN).
14. Allow engine to run at no-load for 2–5 minutes.
15. Press OFF on control panel to shut engine down.
Testing Auxiliary Shutdown Switch Operation
CAUTION
Equipment Damage. The auxiliary shutdown switch is
not to be used to power down the unit under normal
operating circumstances. Doing so will result in
equipment damage.
Proceed as follows to test auxiliary shutdown switches to
verify correct operation:
1. Verify auxiliary shutdown switches (A, B) are ON
(I).
Figure 6-3. Auxiliary Shutdown Switch Locations
2. Press MANUAL on control panel to start engine.
3. With engine running, set one auxiliary shutdown
switch to OFF (O). Engine will shut down immedi-
ately.
• 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 shutdown
switch, verify operation of second auxiliary shut-
down switch.
40
(000399)
A
B
004900
• If engine does not stop, auxiliary shutdown switch
is not functioning correctly. Stop generator through
control panel, and inspect wiring installation. Con-
tact Generac Technical Support if problem cannot
be identified or if assistance is needed.
Auxiliary shutdown switches are not intended to be a pri-
mary means to shut down generator under normal oper-
ating conditions. Accidental activation of an auxiliary
shutdown switch will prevent generator from operating
during a power outage.
Checking Automatic Operation
Proceed as follows to check system for correct automatic
operation:
1. Verify generator is in OFF mode. Red LED above
OFF on control panel illuminates to verify system is
OFF.
2. Install front cover over transfer switch.
3. Turn on utility power supply to transfer switch,
using the means provided (such as a utility MLCB).
NOTE: Transfer switch will transfer to utility position.
4. Set generator MLCB (generator disconnect) to ON
(CLOSED).
5. Verify both auxiliary shutdown switches are ON (I).
6. Press AUTO on control panel. System is now
ready for automatic operation.
7. Turn off utility power supply to transfer switch.
With generator ready for automatic operation, engine will
crank and start when utility source power is turned OFF
after a 10 second delay (factory default setting). After
starting, transfer switch connects load circuits to standby
side. Allow system to operate through entire automatic
sequence of operation.
With generator running and loads powered by generator
AC output, turn ON utility power supply to transfer switch.
System transfers to UTILITY, and then runs through the
cool down cycle and shuts down.
Installation Summary
1. Verify installation has been performed correctly as
outlined by the manufacturer and that it meets all
applicable laws and codes.
2. Test and verify correct operation of the system as
outlined in the appropriate installation and owner's
manuals.
3. Educate end-user on correct operation, mainte-
nance, and service call procedures.
Installation Guidelines For Spark-Ignited Stationary Generators
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