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26 Owner’s Manual for Stationary Emergency Generators
IMPORTANT NOTE: Always use the applicable transfer switch owner's manual for actual manual transfer
switch operation instructions. The information presented here describes a transfer switch, which is not used
for three phase applications. See specific manual for three phase transfer switch.
4.10.1— Transfer to Generator Power
When utility power fails, manually transfer to standby power and start the generator as follows:
1. Press OFF on the control panel. A red LED illuminates to confirm that the system is in the OFF mode.
2. Move the Main Circuit Breaker switch down to the OFF (Open) position.
3. Turn off the utility power supply to the transfer switch using the means provided (such as a utility main line circuit
breaker).
4. Use the manual transfer handle inside the transfer switch to move the main contacts to the STANDBY position
(loads connected to the standby power source).
5. Press MANUAL on the control panel. The engine cranks and starts.
6. Allow the engine to run for two minutes to bring it up to normal operating temperature.
7. Move the Main Circuit Breaker switch up to the ON (Closed) position.
Figure 4-4. Manual Transfer Switch Operation (Typical)
4.10.2— Transfer Back to Utility Power
When utility power is restored, manually transfer back to utility power and shut down the generator as follows:
NOTE: Verify that utility voltage has returned and is at the proper value.
1. Move the Main Circuit Breaker switch down to the OFF (Open) position.
2. Allow the engine to run for two minutes at no-load to bring it up to normal operating temperature.
3. Press OFF on the control panel to shut down the engine.
4. Verify that utility power supply to the transfer switch is turned off.
5. Use the manual transfer handle inside the transfer switch to move the main contacts to the UTILITY position
(loads connected to the utility power source).
6. Turn on the utility power supply to the transfer switch using the means provided.
7. Press AUTO on the control panel. A green LED illuminates to confirm that the system is in the AUTO mode.
Manual Transfer
Handle
Transfer Switch
Operating Lever
Load Connected to Utility
Load Connected to Standby
NOTE: V-style transfer switch not used for three phase applications.