Winco ULPSS20B4W/A - Manual (Page 14)

20-00 4 60706-228
With the engine running smoothly, check the no load
voltage and frequency at wire #  and # 4 (L2 and
L6 in the ASCO ATS) on the generator terminal block
in the ATS. The voltage should be 240 volts plus or
minus nominal. The frequency should be between
6.5 to 62 hertz (Hz). The voltage should also be
checked between the hot terminals (L2 and L6) and
the neutral to be certain of a balanced voltage output
and a solid neutral connection. The voltage should
be about one half of the line to line voltage.
** 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. SEE PAGE 24 FOR
PICTORIAL INSTRUCTIONS FOR SETTING THE
FREQUENCY.
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 trouble-
shooting 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.
INITIAL START UP
******************
***** WARNING *****
******************
DO NOT jump start these generator sets. Starting
these units on a low battery by jump starting them
will cause damage to the engine control module.
Use the following checklist to verify correct in-
stallation before starting the engine:
� Engine oil. Check level & fill as required with
proper grade/quantity. Refer to engine owners
manual for proper levels and types.
� Unit mounting base properly bolted down.
� Clearance for service and maintenance on all
sides.
� Proper fuel line material and size.
� All fuel line connections tight.
� Fuel line protected and a moisture trap in
stalled (may be required for NG).
� LP/NG pressure OK. 4-6 oz. (7- in. WC).
� Battery connections clean and tight.
� Battery fully charged.
� All AC and DC wiring installed and properly
protected.
After completing the above checklist, the generator
set is ready for the initial start-up test.
START UP PROCEDURE
Engine Generator Set only
Move the left hand toggle switch from OFF to the
ON position. The alarm light should go out. Next
move the right hand toggle switch from the AUTO to
the RUN position. You should hear the fuel solenoid
engage at this time. Next lift the toggle switch to the
START position and hold. The engine starter should
engage and the engine will start. As soon as the
engine starts, release the toggle switch and it will
return to the RUN position. If the engine does not
start after 5 seconds, release the switch and let the
starter rest for 5 seconds and re-attempt to start. If
the unit still will not start, consult the troubleshooting
guide in the back of this manual.