Winco PSS15B2W-18/A - Manual (Page 8)

PAGE 6 60706-170 4190-10
LP/NG FUEL CONVERSION
The PSS15B2W-XX/A generator systems have been
tested on NATURAL GAS prior to shipment. If you are
going to use them on LP vapor, follow the procedures
outlined below to change the fuel type.
1. Connect your LP supply to the unit, making sure
that you have the correct fuel pressure.
2. Locate the vapor fuel adapter mounted between
the air filter and the carburetor body.
3. Using an end wrench loosen the locking ring on the
adjustment screw.
4. Start the unit up and lean out the fuel to air mixture
by turning the adjustment screw in (clockwise). Keep
adjusting until the engine is running smooth. If you
lean it out too far the engine will start to hunt in speed
at no-load..
5. Check the unit to make sure it is still operating at
the proper speed (61.5 to 62 Hz). If it is correct
retighten the locking ring.
6. Test the unit under load to make sure it will work
properly.
If it should become necessary to change back to NG
from LP, just turn the adjustment out (counter clockwise)
until the engine is running smooth.
LUBRICATION
Before starting the engine, check the oil level and fill the
crankcase with the proper weight/grade of oil, as recom-
mended by the engine manufacturer’s maintenance
instructions. The necessity of using the correct oil, and
keeping the crankcase full cannot be over emphasized.
INSTALLING THE BATTERY
**** CAUTION ****
In the following battery installation procedure, check to be
sure the righ hand toggle switch is in the disabled position
and the left hand toggle switch in the off position. This
should be your last step before initial start-up.
A customer supplied twelve-volt battery is required to
complete the installation. Installation of the highest CCA
rated battery, within the correct BCI group, will increase
cold weather starting performance. Gel batteries should
not be used with the battery tender installed in the
generator enclosure.
MINIMUM
Model BCI Group CCA Rating
PSS15B2W 26 500*
* 650 CCA Recommended for cold weather starting.
*****CAUTION*****
EQUIPMENT DAMAGE - Always connect the positive
cable first and the negative cable last, when disconnect-
ing, it is negative cable first and positive last. Failure to
connect and disconnect in the proper sequence can
cause equipment damage.
Observe polarities: connect the positive (+) battery
terminal to the (+) cable from the control panel; the
negative (-) battery terminal is connected to the negative
cable (ground) from the engine generator assembly.
All connections must be clean and tight. Check the
electrolyte (fluid) in the battery periodically to be sure it is
above the plates. Never allow the battery to remain in a
discharged condition.
*****CAUTION*****
EQUIPMENT DAMAGE - NEVER JUMP START these
units. Doing so will destroy the engine control module
rendering the unit non-operational. Remove and fully
recharge the battery before attempting to start.
CONNECTING THE BATTERY CHARGER
A two-stage battery tender is provided on all PSS series
generators. This battery tender charges at a rate of 750
mA until the battery is fully charged and then automati-
cally switches to a 13.2 VDC float charger. The charger
has an indicator light on it, red indicates it is charging, and
green indicates it is in the storage mode (float charge).
This charger is mounted on the engine generator set in
the same location as the other AC and DC connections.
This battery tender requires a circuit breaker protected
AC circuit from your distribution panel be run out to the
engine generator set. These AC wires can be run in the
same conduit as the other AC leads from the generator. It
is suggested that this circuit be fused for 15 amps.
A 120 volt receptacle is mounted in the generator
connection box. The receptacle is prewired with black,
white and green leads attached to it, this is where you
will connect your 120 volt fused power feed. This
receptacle can also be used when installing the oil heater
kit and the battery warmer.
** NOTICE **
The battery tender is not intended to recharge a battery
which has become completely discharged. It is designed
to produce enough current to recharge a slightly low
battery, maintaining it fully charged.
MOUNTING THE AUTOMATIC
TRANSFER SWITCH (A.T.S.)
*************
***** WARNING *****
*************
EQUIPMENT DAMAGE- Protect the switch from con-
struction grit and metal chips to prevent a malfunction or
shortened life of the switch. Contactors returned for
warranty consideration with foreign material inside of them
will not be warranted.