Automatic Sequence Of Operation; Utility Failure; Cranking; Cold Smart Start - Generac Power Systems PowerPact G0069981 Owner's Manual

Automatic Sequence of Operation

Utility Failure

With the generator set to AUTO, when utility fails (below
65% of nominal) a five second line interrupt delay time is
started. If utility is still gone when the timer expires, the
engine will crank and start. Once started, a six second
engine warm-up timer will be initiated

Cold Smart Start

warm-up timer; refer to
up time expires, the control panel will transfer the load to
the generator. If the utility power is restored (above 80%
nominal) at any time from the initiation of the engine start
until the generator is ready to accept load (warm-up time
has not elapsed), the control panel will complete the start
cycle and run the generator through its normal cool down
cycle, however, the load will remain on the utility source.

Cranking

The system will control cyclic cranking cycles as follows:
16 second crank, seven (7) second rest, 16 second
crank, seven (7) second rest, followed by three (3)
additional cycles of seven (7) second cranks followed by
seven (7) second rests. An alarm will be triggered if the
generator does not start after five attempts.
Cold Smart Start
The Cold Smart Start feature enables the generator to
monitor ambient temperature. The warm-up delay will be
adjusted based on prevailing conditions.
On a startup in AUTO mode, if the ambient temperature is
below a fixed temperature (based on model) the generator
will warm up for 30 seconds. This allows the engine to
warm before a load is applied. If the ambient temperature
is at or above the fixed temperature, the generator will
start up with the normal warm-up delay of six seconds.

Load Transfer

The transfer of load when the generator is running is
dependent upon the operating mode.
Owner's Manual for 7.5 kW PowerPact™
Shutting Generator Down While
Under Load Or During A Utility
Outage
(or a 30 second
When the warm-
).
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
3. Allow the generator to run for a cool-down period of
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
3. At the controller, set the generator to AUTO mode.
4. Generator will start and run. Allow generator to run
5. Set the MLCB (generator disconnect) to ON
6. Set the main utility disconnect to ON (CLOSED).
The system now operates in automatic mode.
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.
OFF (OPEN).
approximately one minute.
the generator
disconnect) is OFF (OPEN).
and warm up for a few minutes.
(CLOSED).
Operation
(000191)
MLCB (generator
15