Winco ULPSS8B4W/E - Manual (Page 14)

045-00 4 60706-20
** NOTICE **
If for any reason during the check out procedures
the voltage and frequency are not correct, move the
toggle switch to the “STOP” position and correct the
trouble before proceeding.
After verifying the voltage and frequency are cor-
rect, move the right hand toggle switch to the AUTO
position. The unit should shut off with no time delay.
The right hand toggle switch must be left in the
AUTO position for proper operation of the gen-
erator. If you leave it in the RUN position the fuel
solenoid will remain open and it will not shutdown
properly after the next exercise period.
Transfer Switch & Engine Generator
This procedure checks the electrical operation of
the automatic transfer switch. If the actual operation
does not follow this procedure, consult the trou-
blshooting section in the transfer switch manual.
. Move the left hand toggle switch from the OFF
position to the ON position. The alarm light should
go out. The unit is now ready to be operated from
the Automatic Transfer Switch.
******************
***** WARNING *****
******************
PERSONAL INJURY HAZARD - Install front cover
in transfer switch before operation. An electrical sys-
tem fault could cause a flash and severe personal
injury.
2. Turn on the preferred source (utility) circuit
breaker. The utility source acceptable light should
now come on as well as the transfer switch on utility
light. If these lights fail to come on recheck your
incoming power to insure you have 240 volts nomi-
nal. If not, troubleshoot your utility source before
continuing.
3. Turn on the altenate source (generator) curcuit
breaker.
4. Press and hold the Push to Test button until
the generator (alternate source) acceptable light
comes on and stays on. Then release the button.
This will start up your generator set.
This light indicates that the generator is running and
the output voltage and frequency are within accept-
able limits. Under normal conditions this light should
come on in 5 to 0 seconds. If the light does not
come on and stay on a malfunction has occurred.
Either the unit didn’t start or the voltage or frequency
is incorrect. Correct the problem before continuing.
5. About 5 seconds after the generator (alter-
nate source) acceptable light comes on, the auto-
matic transfer switch should transfer the load from
the utility to the generator. At that time the Transfer
Switch on generator light should come on.
6. The generator will stay connected to the load
for about 5 minutes at which time the transfer switch
will transfer the load back to the utility. At the time it
transfers back to utility the Transfer Switch on Utility
light should come on and the Transfer Switch on
generator light should go out. To bypass this five
minute time delay you can press and release the
Push to Test button again at any time.
7. After the load retransfer to the utility, the gen-
erator will continue to run for about  minute (without
a load) and then shut down. The Generator accept-
able light will go off indicating the generator set has
shut down. This completes the functional test of the
transfer switch and the generator set. If you want to
leave the generator in the Automatic Start mode you
can leave the left hand toggle switch on the genera-
tor in the ON position. If you have additional work to
do or don’t want to leave the engine generator set in
the automatic position start mode move the toggle
switch to the OFF position. In the OFF postion the
alarm light will come on and the engine generator
set will not start or run.
GENERATOR EXERCISER CIRCUIT
The automatic generator exerciser is configured to
automatically exercise the generator for 20 minutes
once every 4 days.