Product Manual

Operation
22 Owner’s Manual for Spark-Ignited Stationary Generators
Transfer Switch Manual Operation
Prior to automatic operation, manually exercise transfer
switch to verify there is no binding or interference with
correct operation of the mechanism. Manual operation of
transfer switch is required if automatic operation fails.
IMPORTANT NOTE: Always use applicable transfer
switch owner's manual for actual manual transfer
switch operation instructions. The information pre-
sented here describes a typical V-style transfer
switch, which is not used for three-phase applica-
tions. See specific manual for three-phase transfer
switch.
Transfer to Generator Power
Proceed as follows to manually transfer to standby power
and start the generator when utility power fails:
1. Press OFF on control panel. A red LED illuminates
to verify system is OFF.
2. Set generator MLCB (generator disconnect) to
OFF (OPEN).
3. Turn off utility power supply to transfer switch using
the means provided (such as a utility MLCB).
4. See Figure 4-3. Use the manual transfer handle
(A) inside the transfer switch to set main contacts
to STANDBY (loads connected to standby power
source) (C).
Figure 4-3. Manual Transfer Switch Operation
(Typical)
5. Press MANUAL on control panel. Engine cranks
and starts.
6. Allow engine to run for two minutes to bring it up to
normal operating temperature.
7. Set generator MLCB (generator disconnect) to ON
(CLOSED).
Transfer Back to Utility Power
Proceed as follows to manually transfer back to utility
power and shut down generator when utility power is
restored:
NOTE: Verify utility voltage has returned and is at the
correct value.
1. Set generator MLCB (generator disconnect) to
OFF (OPEN).
2. Allow engine to run for two minutes at no-load to
bring it up to normal operating temperature.
3. Press OFF on control panel to shut down engine.
4. Verify utility power supply to transfer switch is
turned off.
5. See Figure 4-3. Use the manual transfer handle
inside the transfer switch to set main contacts to
UTILITY (loads connected to utility power source)
(B).
6. Turn on utility power supply to transfer switch using
the means provided (such as a utility MLCB).
7. Press AUTO on control panel. A green LED illumi-
nates to verify system is in AUTO.
(000132)
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.
DANGER
006375
A
B
C