Operating Guide

Operation
Owner’s Manual for 60 Hz Air-Cooled Generators 23
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. Cold Smart Start
is enabled at the factory, but can be disabled in the EDIT
menu.
See Table 3-2. If the ambient temperature is below a
fixed temperature (based on model) upon startup in
AUTO mode, the generator will warm up for 30 seconds.
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 the ambient temperature is at or above
the fixed temperature.
A check for proper output voltage buildup 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 a
cleaning cycle of the internal electrical connections can
be attempted.
The cleaning cycle is an extended warming up period
which lasts for several minutes while the 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.
Load Transfer
The transfer of load when the generator is running is
dependent upon the operating mode.
Shutting Generator Down While
Under Load Or During A Utility
Outage
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
disconnect) 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.
Table 3-2. Cold Smart Start Set Points
Generator Size 9 kW–20 kW 22 kW
Fixed Temperature 50 °F (10 °C) 20 °F (-7 °C)
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.
(000191)
DANGER