Use and Care Manual

Operation
22 Owner’s Manual for Spark-Ignited Stationary Generators
Transfer Switch Manual Operation
(000132)
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 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
sw
itch owner's manual for actual manual transfer
switch operation instructions. The information pre-
sented here describes a typical V-style transfer
s
witch, which is not used for three-phase applica-
tions. See specific manual for three-phase transfer
sw
itch.
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. T
urn 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).
006375
A
B
C
Figure 4-3. Manual Transfer Switch Operation
(Typical)
5. Pr
ess MANUAL on control panel. Engine cranks
and starts.
6. Allo
w 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. Pre
ss OFF on control panel to shut down engine.
4. V
erify 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. T
urn 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.
