Cold Smart Start; Load Transfer; Shutting Generator Down While Under Load Or During A Utility Outage - Generac Power Systems G0071411 Owner's Manual

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Operation

Cold Smart Start

The generator will monitor ambient temperature when
Cold Smart Start is enabled. The warm-up delay will be
adjusted based on prevailing conditions. The Cold Smart
Start feature is enabled at the factory, but can be disabled
in the EDIT menu.
The generator will warm up for 30 seconds if ambient
temperature is below a fixed temperature (based on
model) upon startup in AUTO mode. This allows the
engine to warm before a load is applied. The generator
will startup with the normal warm-up delay of five
seconds if ambient temperature is at or above the fixed
temperature.
A check for proper output voltage build up will be
performed when the generator engine is started.
If some condition impedes normal voltage creation, such
as frost crystals or dust/dirt preventing a good electrical
connection, the start sequence will be interrupted so that
a cleaning cycle of the internal electrical connections can
be attempted.
NOTE: The cleaning cycle is an extended warming up
period which lasts for several minutes while normal
generator voltage output is determined to be low. During
this cycle, the generator controller will display "Warming
Up" on the display screen.
The generator controller display will show "Under
Voltage" if the cleaning cycle fails to clear the obstruction.
After several minutes, the alarm message can be
cleared, and the generator restarted.
If the problem persists, make no further attempts to start.
Contact an IASD.
Table 3-2. Cold Smart Start Set Points
Generator Size
Fixed Temperature

Load Transfer

The transfer of load when the generator is running is
dependent upon the operating mode.
22
16 kW
22 kW
50 °F (10 °C)
20 °F (-7 °C)
Shutting Generator Down While
Under Load Or During A Utility
Outage
DANGER
Automatic start-up. Disconnect utility power and
render unit inoperable before working on unit.
Failure to do so will result in death or serious injury.
IMPORTANT NOTE: To avoid equipment damage, follow
these steps, in order, during utility outages. Shutdowns
may be required during utility outages to perform routine
maintenance or to conserve fuel.
To turn the generator OFF:
1. Set the main utility disconnect to OFF (OPEN).
2. Set the generator MLCB (generator disconnect) to
OFF (OPEN).
3. Allow the generator to run for a cool-down period of
approximately one minute.
4. At the controller, set the generator to OFF.
5. Remove the 7.5A fuse from the controller.
To turn the generator back ON:
1. Install 7.5A fuse in controller.
2. Confirm the generator MLCB (generator discon-
nect) is OFF (OPEN).
3. At the controller, set the generator to AUTO mode.
4. Generator will start and run. Allow generator to run
and warm up for a few minutes.
5. Set the MLCB (generator disconnect) to ON
(CLOSED).
6. Set the main utility disconnect to ON (CLOSED).
The system now operates in automatic mode.
Owner's Manual for 60 Hz Air-Cooled Generators
(000191)

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