Manual Transfer Operation (If Equipped); Transfer To Generator Power Source; Transfer To Utility Power Source; Automatic Transfer Operation - Generac Power Systems EcoGen 15 kW Owner's Manual

Operation
Manual Transfer Operation
(if equipped)
DANGER
Electrocution. Do not manually transfer under load.
Disconnect transfer switch from all power sources
prior to manual transfer. Failure to do so will result in
death or serious injury, and equipment damage.
Prior to automatic operation, manually exercise the trans-
fer switch to verify there is no interference with correct
operation of the mechanism. Manual operation of the
transfer switch is required if electronic operation should
fail.

Transfer to Generator Power Source

Proceed as follows to transfer to generator power source:
1. Verify generator is OFF.
2. Set generator MLCB (generator disconnect) to
OFF (OPEN).
3. Turn OFF utility power supply to the transfer switch
using the means provided (such as a utility MLCB).
4. See Figure 3-11. Use the manual transfer handle
(A) inside the transfer switch to set main contacts
to STANDBY (loads connected to the standby
power source).
A
Figure 3-11. Typical Manual Transfer Switch
Operation
5. Press MANUAL button on generator to crank and
start engine.
6. Allow engine to stabilize and warm up for a few
minutes.
7. Set generator MLCB (generator disconnect) to ON
(CLOSED). The standby power source now pow-
ers the loads.
20

Transfer to Utility Power Source

Shut down generator and transfer to utility source after
utility power has been restored. Proceed as follows to
manually transfer to utility power and shut down the gen-
erator:
1. Set generator MLCB (generator disconnect) to
OFF (OPEN).
2. Run engine for one minute at no-load to stabilize
(000132)
the internal temperature.
3. Press OFF mode button on the control panel. The
engine will shut down.
4. Verify utility power supply to the transfer switch is
turned OFF.
5. Set main contacts to UTILITY (loads connected to
the utility power source) using the manual transfer
handle inside the transfer switch.
6. Turn on utility power supply to transfer switch using
the means provided (such as a utility MLCB).
7. Press AUTO button on the control panel.
8. Set generator MLCB (generator disconnect) to ON
(CLOSED).
9. Close and lock the lid.

Automatic Transfer Operation

Proceed as follows to select automatic operation:
1. Verify transfer switch main contacts are set to
UTILITY (loads connected to the utility power
source).
2. Verify normal utility power source voltage is avail-
able to loads connected to the transfer switch.
3. Press AUTO button on the generator control panel.
4. Set generator MLCB (generator disconnect) to ON
(CLOSED).
The generator will start automatically when utility source
voltage drops below a preset level. Loads are transferred
to standby power source after the unit starts.

Automatic Sequence of Operation

Utility Failure (if equipped with Transfer Switch
and Off-Grid Mode Disabled)
If generator is set to AUTO and equipped with a transfer
002565
switch, a five second (dealer-programmable) line inter-
rupt delay timer begins when utility fails (below 65% of
nominal). Engine cranks and starts if utility power is still
unavailable when timer expires. An engine warm-up
timer will be initiated once the engine is started. Timer
duration varies depending on whether or not
Start is enabled. The controller will transfer load to the
generator when the warm-up time expires. If utility power
is restored (above 80% nominal) at any time from the ini-
tiation of the engine start until generator is ready to
accept load (warm-up time has not elapsed), the control-
Owner's Manual for 60 Hz EcoGen™ Generators
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