Winco ULPSS12H2W/E - Manual (Page 14)

075-00 4 60706-209
. 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.
******************
***** 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. Press and release the Auto button on the
engine control module (ECM). The auto mode icon
will appear on the screen. The unit is now ready to
be operated from the Automatic Transfer Switch.
3. Turn on the altenate source (generator) curcuit
breaker.
There are two ways to test your transfer switch
operation: WITHOUT a load transfer or WITH a
load transfer.
WITHOUT load transfer (normal exercise)
. Press and release the Push to Test button.
The generator set should start immediately. About
5 seconds the generator (alternate source) accept-
able light comes on and stays on.
2. The generator set runs for 20 minutes. The
Transfer Switch does not transfer the load to the
generator set. The Transfer Switch on utility (pre-
ferred source) light stays on.
3. To bypass the time delay or cancel the test,
press and release the Push to Test button again.
4. The generator set stops and the Generator
acceptacle light goes off.
WITH Load Transfer
. 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.
2. 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 generator acceptable light should come on.
3. 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.
4. 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 the gen-
erator to automatically start press the Auto button
on the engine control module of the generator set. If
you have additional work to do or don’t want to leave
the engine generator set in the automatic start mode
press and release the stop/reset button on the gen-
erator set. In the off mode the engine generator set
will not start or run automatically.
GENERATOR EXERCISER CIRCUIT
The automatic generator exerciser is configured to
automatically exercise the generator for 20 minutes
once every 4 days.