Protection Systems.10; Low Oil Pressure Switch.10; High Temperature Switch.10; Overcrank.10 - Generac Power Systems GUARDIAN 04077-2 Owner's Manual

OPERATION
Section 2 - Operation
Guardian Air-cooled 6 kW, 8 kW and 10 kW Generators
L>-
A switch on the control panel (see Figure 3.1) allows
you to select the day and time for system exercise.
To select the desired day and time of day, proceed
as follows:
1. Verify that the Auto/Off/Manual switch is set
to AUTO.
2. Hold down the set timer switch until the gener¬
ator starts (approximately 10 seconds) and
then release.
3. The generator will start and run for approxi¬
mately seven minutes and then shut down on
its own. The exerciser will then be set to run at
that time of day every week.
NOTE:
The exerciser will only work in the AUTO mode
and will not work unless this procedure
is performed. The exerciser will need to be reset
every time the 12-volt battery is disconnected
and then reconnected. The exerciser WILL NOT
work if dip switch 2 (Remote Not Auto) is ON.
2,6 PROTECTION SYSTEMS
♦ 2.6.1 LOW OIL PRESSURE SWITCH_
This switch (Figure 2.3) has normally closed contacts
that are held open by engine oil pressure during
cranking and operating. Should oil pressure drop
below the 8 psi range, switch contacts close, and the
engine shuts down. The unit should not be restarted
until oil is added, and the Auto/Off/Manual switch
must be turned to OFF and then back to AUTO.
♦ 2.6.2 HIGH TEMPERATURE SWITCH_
This switch's (Figure 2.3) contacts close if the tem¬
perature should exceed approximately 140° C (284°
F), initiating an engine shutdown. Your generator
will automatically restart and the LED will reset
once the temperature has returned to a safe oper¬
ating level.
Figure 2.3 - Low Oil Pressure and
High Temperature Switches
HIGH
♦ 2.6.3 OVERCRANK_
This feature prevents the generator from damaging
itself when it continually attempts to start and
another problem, such as no fuel supply, prevents
it from starting. The unit will crank and rest for a
preset time limit. Then, it will stop cranking, and
the LED will light indicating an overcrank failure.
The Auto/Off/Manual switch will need to be set to
OFF and then back to AUTO to reset the generator
control board.
NOTE:
If the fault is not repaired, the overcrank fea¬
ture will continue to activate.
2.6.3.1 Approximate Crank Cycle Times
• 15 seconds ON
• 15 seconds OFF
• 7 seconds ON
• 7 seconds OFF
® Repeat for 45 seconds
Approximately 90 seconds total
• 2.6.4
OVERSPEED ____
This feature protects the generator from damage by
shutting it down if it happens to run faster than the
preset limit. This protection also prevents the gener¬
ator from supplying an output that could potentially
damage appliances connected to the generator cir¬
cuit. Contact your nearest Generac/Guardian
Authorized Dealer if this failure occurs.
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Generac* Power Systems, Inc.