PACKAGE
STANDBY
SYSTEMS
PSS50LS-*/A
PSS65LS-*/A
PSS50LS-*/B
PSS65LS-*/B
INSTALLATION AND
OPERATIONS MANUAL
Automatic Transfer
Switch
Engine Generator Set
225 SOUTH CORDOVA AVE
LE CENTER MN 56057
507-357-6831
Read and understand all instructions in the
manual before starting and operating the generator set.
USING THIS MANUAL
Congratulations on your choice of a Winco generator
set. You have selected a high-quality, precision-engineered
generator set designed and tested to give you years of satisfactory portable service.
To get the best performance from your new engine generator set, it is important that you carefully read and follow
the operating instructions in this manual.
Should you experience a problem please follow the
“Things To Check” near the end of this manual. The warranty listed in this manual describes what you can expect
from WINCO should you need service assistance in the future
COPY YOUR MODEL AND SERIAL NUMBER
HERE
No other WINCO generator has the same serial number as
yours. It is important that you record the number and other
vital information here. If you should ever need to contact us
on this unit it will help us to respond to your needs faster.
MODEL_____________________________________
SERIAL NUMBER____________________________
PURCHASE DATE____________________________
DEALER____________________________________
TABLE OF CONTENTS
INTRODUCTION i
GUIDE TO PRODUCT SAFETY 1
BASIC INFORMATION 2
Description 2
Specification Table 3
PREPARING THE UNIT 3
Unpacking the unit 3
ENGINE GENERATOR INSTALLATION 4
Installation 4
Fuel Line Installation 4
Fuel Pressure Tables 5
Lubrication 6
Coolant 6
Battery Installation 6
BATTERY TNDER & BLOCK HEATER WIRING 6
TRANSFER SWITCH INSTALLATION 7
AC Electrical Connections 7
DC Electrical Connections 9
INITIAL START-UP 9
EXERCISER CLOCK 10
TROUBLESHOOTING INFORMATION 11
LP/NG ADJUSTMENT 12
FUEL TYPE CONVERSION 12
WIRING DIAGRAMS 14
12 MONTH WARRANTY 20
PROPER USE AND INSTALLATION
You must be sure your new engine generator set is:
* Properly serviced before starting
* Operated in a well ventilated area
* Properly exhausted and gases safely dispersed
* Wired by a qualified electrician
* Operated only for its designed purposes
* Used only by operators who understand its operation
* Properly maintained
Page i
SAFETY INFORMATION
This engine generator set has been designed and
manufactured to allow safe, reliable performance. Poor
maintenance, improper or careless use can result in potential deadly hazards; from electrical shock, exhaust gas
asphyxiation, or fire. Please read all safety instructions
carefully before installation or use. Keep these instructions handy for future reference. Take special note and
follow all warnings on the unit labels and in the manuals.
ANSI SAFETY DEFINITIONS
2. FIRE HAZARD - Natural gas and L.P. present a hazard
of possible explosion and/or fire.
a. Do not smoke or use open flame near the generator
set.
b. Keep a fire extinguisher nearby and know its proper
use. Fire extinguishers rated ABC by NFPA are
appropriate.
3. DEADLY EXHAUST GAS - Exhaust fumes from any
gasoline engine contain carbon monoxide, an invisible,
odorless and deadly gas that must be mixed with fresh
air.
************************************************************
DANGER:
DANGER indicates an imminently hazardous situation
which, if not avoided, will result in death or serious injury.
This signal word is to be limited to the most extreme situations.
***********************************************************
************************************************************
WARNING:
WARNING indicates a potentially hazardous situation
which, if not avoided, could result in death or serious injury.
***********************************************************
***********************************************************
CAUTION:
CAUTION indicates a potentially hazardous situation
which, if not avoided, may result in minor or moderate injury. It may also be used to alert against unsafe practices.
************************************************************
NOTE:
CAUTION is also used on the unit labels and in this
manual to indicate a situation that could result in serious
damage or destruction of the equipment and possible personal injury.
1. ELECTRIC SHOCK - The output voltage present in
this equipment can cause a fatal electric shock. This
equipment must be operated by a responsible person.
a. Do not allow anyone to operate the generator with
out proper instruction.
b. Guard against electric shock.
c. Avoid contact with live terminals or receptacles.
d. Use extreme care if operating this unit in rain or
snow.
e. Use only three-prong grounded receptacles and
extension cords.
f. Be sure the unit is properly grounded to an external
ground rod driven into the earth.
a. Operate only in well ventilated areas.
b. Never operate indoors without adequate ventilation
and fresh air.
c. Never operate the unit in such a way as to allow
exhaust gases to seep back into closed rooms (i.e.
through windows, walls or floors).
4. NOISE HAZARD - Excessive noise is not only tiring,
but continual exposure can lead to loss of hearing.
a. Use hearing protection equipment when working
around this equipment for long periods of time.
b. Keep your neighbors in mind when permanently
installing this equipment.
5. CLEANLINESS - Keep the generator and surrounding
area clean.
a. Remove all grease, ice, snow or materials that
create slippery conditions around the unit.
b. Remove any rags or other material that could create
potential fire hazards.
c. Carefully wipe up any gas or oil spills before starting
theunit.
d. Never allow leaves or other flammable material to
build up around the engine exhaust area.
6. SERVICING EQUIPMENT - All service, including the
installation or replacement of service parts, should be
performed only by a qualified technician.
a. Use only factory approved repair parts.
b. Do not work on this equipment when fatigued.
c. Never remove the protective guards, cover, or
receptacle panels while the engine is running.
d. Use extreme caution when working on electrical
components. High output voltages from this
equipment can cause serious injury or death.
e. Always avoid hot mufflers, exhaust manifolds, and
engine parts. They all can cause severe burns
instantly.
f. Installing a generator set is not a “do-it-yourself”
project. Consult a qualified, licensed electrician or
contractor. The installation must comply with all
national, state, and local codes.
60706-144 Page 1 1017-10
TESTING POLICY:
Before any generator is shipped from the factory, it is
fully checked for performance. The generator is loaded to
its full capacity, and the voltage, current, and frequency
are carefully checked.
Rated output of generators is based on engineering tests
of typical units, and is subject to, and limited by, the temperature, altitude, fuel, and other conditions specified by
the manufacturer of the applicable engines.
INTRODUCTION AND DESCRIPTION
The package standby engine-generator set includes all
items necessary for a completely automatic standby power
system as standard equipment. The entire package is
then tested to insure proper operation of all components
and the total systems performance and reliability.
DESCRIPTION
This packaged power system is designed to automatically provide standby power to unattended loads during
electrical outages. Upon an interruption of normal electrical service this packaged power system electrical control
circuits will automatically start the engine. The generator
will produce electrical power and the Automatic Transfer
Switch (A.T.S.) will automatically transfer the electrical
loads to the engine-generator set. Upon restoration of normal electrical service the emergency transfer switch will
sense return of the normal commercial power. The Automatic Transfer Switch will retransfer the load back to normal commercial power source. The engine control circuits
will begin a 3 minute cool-down cycle, after which the fuel
supply will be shut off and the engine ignition system disabled.
These packaged power systems consist of two major
components:
1) AUTOMATIC TRANSFER SWITCH
The table below shows the different Automatic Switch
sizes shipped with each unit.
CONTACTOR RATING
MODEL VOLTAGE LINE GENERATOR
PSS50000-3 120/240 400 320
PSS50000-4 120/208 230 230
PSS50000-17 120/240 230 230
PSS50000-18 277/480 100 100
PSS65000-3 120/240 400 320
PSS65000-4 120/208 230 230
PSS65000-17 120/240 230 230
PSS65000-18 277/480 225 225
These Automatic Transfer Switchs (A.T.S.) are wall
mount switches designed for inside installation. The
A.T.S. consists of a line side contactor and a generator
side contactor. The contactors are both electrically and
mechanically interlocked. A seven day electronic exerciser clock are installed in the A.T.S. as standard equipment. The A.T.S. also contains the power failure sensing
circuitry necessary to send a start/stop signal to the engine
generator set.
2) ENGINE/GENERATOR
PSS50000 - The engine generator set consists of a GM
Industrial, eight cylinder, liquid cooled , 5.7L engine
equipped to run on L.P. or N.G. fuel. The engine operates
at 1800 rpm and frequency regulation is maintained by the
engine governor within .5 cycles variation, from no load to
rated load. The 50,000 watt (50kW) generator is a single
bearing, direct drive, rotating field design. The generator is
connected to the engine flywheel via flexible drive disks.
The engine generator is mounted in a drip proof enclosure
for outside installation. Connection boxes are provided to
all customer connections (both AC output and DC control).
A customer supplied 12 Volt, 650 CCA (BCI group 24)
battery is required to complete the installation. Engine operation is controlled by an Electronic Engine Control Module (E.C.M.) mounted in the engine generator enclosure.
The E.C.M. is equipped standard with a 3 second start delay, 3 minute cool down delay and cycle cranking consisting of five, 12 second on/12 second off cycles. The ECM
has both oil pressure and high water temperature delays
built into the starting circuit. During initial start up the oil
pressure delay is 12 seconds, to allow the engine time to
build oil pressure, before a shutdown will occur. The high
water temperature shutdown has a 60 to 90 second lockout, allowing the engine time to clear the hot water out of
the block in case of a hot restart. In addition if the generator should lose output during a run cycle the engine will
continue to run for about 60 seconds and then shutdown
and display an overcrank light. The starter will not reengage during this time or until the generator selector switch
has been cycled off and back on. This is the only way to
clear a fault light.
PSS65000 - The engine generator set consists of a GM
Industrial, eight cylinder, liquid cooled , 7.4L engine
equipped to run on L.P. or N.G. fuel. The engine operates
at 1800 rpm and frequency regulation is maintained by the
engine governor within .5 cycles variation, from no load to
rated load. The 65,000 watt (65kW) generator is a single
bearing, direct drive, rotating field design. The generator is
connected to the engine flywheel via flexible drive disks.
The engine generator is mounted in a drip proof enclosure
for outside installation. Connection boxes are provided to
all customer connections (both AC output and DC control).
A customer supplied 12 Volt, 650 CCA (BCI group 24)
battery is required to complete the installation. Engine operation is controlled by an Electronic Engine Control Module (E.C.M.) mounted in the engine generator enclosure.
The E.C.M. is equipped standard with a 3 second start delay, 3 minute cool down delay and cycle cranking consisting of five, 12 second on/12 second off cycles. The ECM
has both oil pressure and high water temperature delays
built into the starting circuit. During initial start up the oil
pressure delay is 12 seconds, to allow the engine time to
build oil pressure, before a shutdown will occur. The high
Page 21017-10 60706-144
water temperature shutdown has a 60 to 90 second lockout, allowing the engine time to clear the hot water out of
the block in case of a hot restart. In addition if the generator should lose output during a run cycle the engine will
continue to run for about 60 seconds and then shutdown
and display an overcrank light. The starter will not reengage during this time or until the generator selector switch
has been cycled off and back on. This is the only way to
clear a fault light.
** NOTICE **
These units will automatically transfer if a power outage
occurs while running in an exercise mode.
SPECIFICATIONS
GENERATOR
MODEL WATTS VOLTS AMP HZ PH RPM
PSS50000 50,000 120/240 208 60 1 1800
PSS50000-4 50,000 120/208 174 60 3 1800
PSS50000-17 50,000 120/240 151 60 3 1800
PSS50000-18 50,000 277/480 72 60 3 1800
PSS65000 65,000 120/240 271 60 1 1800
PSS65000-4 65,000 120/208 226 60 3 1800
PSS65000-17 65,000 120/240 196 60 3 1800
PSS65000-18 65,000 277/480 98 60 3 1800
*Derate 10% for Natural Gas operation. Derate 3.5% per
1000 feet elevation above sea level.
FUEL CONSUMPTION
NG (1,000 BTU/CU FT) L.P. VAPOR (2,520 BTU/CU FT)
MODEL CF/HR BTU/HR #/HR GAL/HR CF/HR BTU/HR
PSS50000 725 725,000 42.3 10.0 353 889,560
PSS65000 940 940,000 48.7 11.5 406 1,024,000
L.P. TANK SIZING
Minimum required L.P. Tank size for L.P. Vapor withdrawal operating at various outside temperatures given in
degrees Fahrenheit (Celsius)
TANK TEMPERATURE
MODEL 60 F(16 C) 30 F(0 C) 0 F(-18 C) -20 F(-29 C)
PSS50000 500 Gal. 1000 Gal. 1500 Gal.* 9000 Gal.*
PSS65000 500 Gal. 1000 Gal. 2500 Gal.* 9000 Gal.*
*Recommend liquid withdrawal at these temperatures.
ENGINE SPECIFICATIONS:
Refer to engine operating and maintenance instructions
** NOTICE **
Regarding Engines - This manual covers the generator
portion of these units. See the separate engine instruction
manual for engine-related problems, detailed engine information and engine warranty.
The engine manufacturer has established an excellent
world-wide engine service organization; engine service is
available from a nearby authorized dealer or distributor;
check the yellow pages of the telephone directory under
“engines,” or ask the dealer from whom you purchased the
power plant.
The rated power of each engine-generator is limited by
the temperature, altitude and all other ambient conditions
specified by the engine manufacturer. Engine power will
decrease 3-1/2% for each 1000 ft. above sea level, and
will decrease an additional 1% for each 10 degrees Fahrenheit above 60 degrees Fahrenheit.
UNPACKING INSTRUCTIONS
** NOTICE **
When unpacking the generator set, be sure to inspect it
carefully for freight loss or damage. If loss or damage is
noted at the time of delivery, require that the person making the delivery make note of the loss or damage on the
freight bill, or affix his signature under the consigner’s
memo of the loss or damage. Contact the carrier for claim
procedures.
When loss or damage is noted after delivery, segregate
the damaged material, and contact the carrier for claim
procedures.
“Concealed Damage” is understood to mean damage to
the contents of a package which is not in evidence at the
time of delivery by the carrier, but which is discovered
later. The carrier or carriers are responsible for merchandise lost or damaged in transit. The title to goods rests
with the consignee when generators are shipped FOB factory, and only the consignee can legally file a claim.
**** CAUTION ****
EQUIPMENT DAMAGE - The PSS50000 and the
PSS65000 are shipped with oil, and a 50/50 mix of cool-
ant. Be sure to check all fluid levels before operating. See
engine manufacturer’s instruction manual for recommended oil requirements before initial starting.
UNPACKING:
1. Carefully remove the carton.
2. After inspecting the engine-generator for external
physical damage, check for the following items packed
inside the carton.
a. Owner’s manual, wiring diagram, and parts list.
b. Engine manufacturer’s instruction manual.
3. Remove main frame hold down bolts (4).
4. Unit can now be lifted from shipping rails.
** CAUTION **
EQUIPMENT DAMAGE - Be sure to check the engine oil
level frequently as specified in the engine manual.
60706-144 Page 3 1017-10
INSTALLATION
FUEL INSTALLATION
General Information
*************
***** WARNING ****
*************
PERSONAL INJURY - Before proceeding with the installation, be sure the operation selector switch is in the "stop"
position.
These engine/generator sets are available as a skid
mounted unit for indoor installation or a skid mounted unit
with a standard or accoustical housing for outdoor installation. All versions of these units must be bolted solidly to a
concrete pad. The transfer switch is mounted next to your
distribution panel inside the building. Consult a qualified,
licensed electrician or contractor to install and wire the
transfer switch. The installation must comply with all national, state, and local codes.
***** CAUTION ****
EQUIPMENT DAMAGE - These units must be mounted
on a solid concrete pad to prevent air from exiting under
the unit. Allowing air to exit under the unit may cause the
unit to overheat from lack of proper air flow.
Before beginning the installation process recheck the
rating of the generator set and its transfer switch rating.
Be certain they can handle the intended load and are compatible with the entrance voltage, phase and current ratings. Plans for installation should be prepared with proper
attention to mechanical and electrical engineering detail to
assure a satisfactory system installation. The information
in this manual is offered only as a guide to finalizing your
installation plans. For full service switching the A.T.S.
should have a service entrance installed before the switch
to protect the contacts.
ENGINE GENERATOR SET MOUNTING
The fuel supply should be as close as possible to the
engine. This will reduce the installation cost of fuel runs.
The information in this manual is offered to assist you in
providing the proper fuel for your engine. However, this
information is only provided to inform you of the engine’s
requirements and assist in making you aware of the decisions you must make. In no case should the instructions
or information provided be interpreted to conflict with any
local, state or national codes. If in doubt, always consult
your local fire marshal or gas supplier.
*************
***** WARNING ****
*************
FIRE HAZARD - All fuel runs should be installed by a
licensed fuel supplier.
Connect the fuel supply to the inlet of the fuel solenoid
(see table for recommended line size). The pressure at
the secondary demand regulator must be four to six
ounces psi (per square inch) or 7 to 11 inches W.C. (Water
column) for vapor withdrawal units. On units equipped
with liquid withdrawal fuel systems full tank pressure is
plumbed to the fuel lock strainer mounted on the generator
rails. The fuel converter mounted on the unit will handle
both vaporization of the fuel and pressure reduction. These
fuel pressures are critical, failure to provide the proper fuel
pressure can cause many problems ranging from a unit
that will not start to causing damage to the fuel system.
INSTALLING THE FUEL LINE
** NOTICE **
The engine generator sets are properly adjusted before
they leave the factory. A tag is attached to the unit that
specifies the fuel, natural gas (NG) or propane vapor (LP)
that the unit was set up and tested on. A slight adjustment
may be necessary on NG depending on local BTU content.
This adjustment will be discussed later.
The unit’s main frame should be bolted solidly to a 4 to 6
inch thick cement pad. The engine-generator is mounted
on a sub-frame which is attached with special shock
mounts on the main frame. This allows the engine-generator free movement without affecting the control panel which
is mounted on the main frame.
Do not shock mount the main frame. Engine vibration
will be transmitted to the control panel causing erroneous
start/stop cycles and premature control failure.
The unit should be mounted to allow for ample working
room around it. A general rule to follow is three (3) feet
clearance on all sides.
Page 41017-10 60706-144
Line Size (vapor system)
Unit location will determine the size of fuel line that is
required to supply the engine with a constant fuel pressure. Refer to the tables below for fuel line size, fuel
consumption and recommended tank size. For distances
of 50 feet and over, a two regulator fuel system is recommended. This is accomplished by installing a primary
regulator at the tank which will reduce the tank pressure
down to 10 to 15 lbs. A secondary regulator is installed to
further reduce the fuel pressure to the required six (6) oz
operating pressure. This secondary regulator must be at
least 10 feet from the engine generator set. Any closer
installation will require a larger line be installed to provide
a fuel reservoir. If this is not done, the demand regulator
on the unit and the pressure regulator in the fuel line will
interfere with each other. When this two (2) stage regulator system is used, a fuel line size of 3/4 to 1 inch is
generally adequate for distances up to 300 feet from the
primary to the secondary regulator. (Consult your local
fuel supplier for your exact requirements). The appropriate
line size from the table below is then installed from the
second regulator to the generator set.
*************
***** WARNING ****
*************
PERSONAL DANGER - Do not use galvanized pipe in
fuel line runs. The galvanized coating can become eroded
and flake off, causing possible obstructions in the regulator
or fuel valve. The results could range from inoperative engine start to hazardous fuel leaks.
Size of pipe normally required for generators operating
on NATURAL/LP gas.
up to 25 feet* over 25 feet*
PSS50000 1-1/4" pipe Not recommended use
PSS65000 1-1/4" pipe a two regulator
system
* Allow an additional 3 feet for each standard elbow.
Do not use ‘street ells’ (restrictive)*
**** CAUTION ****
EQUIPMENT DAMAGE - Be careful when sealing gas
joints. Excessive sealing compound can be drawn into the
solenoid, regulator or carburetor causing an engine malfunction.
FUEL PRESSURE (vapor system)
Correct fuel pressure cannot be stressed enough. The
most common cause for inoperative systems is an inadequate or incorrect fuel pressure. Performance of the engine is in direct relation to the correctness of the fuel system. Shown below is a block diagram of a typical L.P. or
N.G. Installation.
Supply Primary Secondary Generator
Tank Regulator Regulator Set
1 2 3 4
TWO (2) REGULATOR FUEL SYSTEM
Supply Primary Generator
Tank Regulator Set
1 2 4
SINGLE REGULATOR FUEL SYSTEM
Reference numbers 1 through 3 in the block diagrams
above are fuel lines supplied by customer.
Reference number 4 is the engine generator set.
Below is a table of the fuel pressure reading at each reference in the system.
Fuel Pressure Table
Single Regulator (L.P. Vapor only)
123
UNIT OFF TANK PSI 7-11 in 7-11 in
4-6 oz 4-6 oz
STARTING TANK PSI 7-11 in 7-11 in
4-6 oz 4-6 oz
NO LOAD TANK PSI 7-11 in 7-11 in
4-6 oz 4-6 oz
FULL LOAD TANK PSI 7-11 in 7-11 in
4-6 oz 4-6 oz
Two (2) Regulator System (L.P. Vapor only)
1234
UNIT OFF TANK PSI 10-15 lbs 7-11 in 7-11 in
4-6 oz 4-6oz
STARTING TANK PSI 10-15 lbs 7-11 in 7-11 in
4-6 oz 4-6 oz
NO LOAD TANK PSI 10-15 lbs 7-11 in 7-11 in
4-6 oz 4-6 oz
FULL LOAD TANK PSI 10-15 lbs 7-11 in 7-11 in
4-6 oz 4-6 oz
Natural Gas
13 4
UNIT OFF LINE PSI 7-11 in 7-11 in
4-6 oz 4-6 oz
STARTING LINE PSI 7-11 in 7-11 in
4-6 oz 4-6 oz
NO LOAD LINE PSI 7-11 in 7-11 in
4-6 oz 4-6 oz
FULL LOAD LINE PSI 7-11 in. 7-11 in
4-6 oz 4-6 oz
Notice the preceding tables give two (2) different units
of measuring fuel pressure. The first is with a pressure
gauge calibrated in ounces per square inch. The second
and most accurate is the use of a simple water manometer. A manometer is calibrated in inches of water column.
LP LIQUID WITHDRAWAL SYSTEMS
When installing a unit equipped the LP liquid withdrawal
a primary regulator is not required on the supply tank.
The supply line is connected to a liquid withdrawal valve
on the supply tank and run directly to the fuellock strainer
mounted on the engine generator set. Normally a 3/8 inch
copper line is acceptable for this type of fuel installation.
You must be sure that the valve you have connected to on
the supply tank is in fact a liquid supply valve and has a
drop tube inside the tank that is pulling fuel from the bottom of the supply tank. Before starting the unit you must
confirm that you have a good liquid supply at the unit. En-
gine generator sets equipped for liquid withdrawal will
not run properly when supplied with high pressure vapor fuel.
The following is a block diagram of a typical L/P Liquid
Withdrawal fuel system.
60706-144 Page 5 1017-10
Tank Fuel Solenoid Converter Engine
1 2 3 4
Reference number 1 is the fuel tank. No regulator is required but the tank must have a liquid withdrawal drop tube
installed in it and a liquid valve on the tank.
Reference number 2 through 4 are installed on the engine generator set.
LUBRICATION
Before starting the engine, check the oil level in the
crankcase. If it is low, refill to the full mark with the proper
weight/grade of oil as recommended by the engine manufacturer’s maintenance instructions. The necessity of using the correct oil, and keeping the crankcase full cannot
be over emphasized. Failure to use the proper oil and
keep the crankcase properly filled will cause excessive
engine wear and shorten its useful life.
NOTE: Alway make sure that a new battery is fully
charged before installing it on a generator set. Failure to
do so can cause damage to the engine control module in
the generator set.
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.
CONNECTING THE BATTERY CHARGER &
BLOCKHEATER
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 automatically
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 just below
the engine control panel. .
COOLANT
Before starting the engine, check the coolant level in radiator. If it is low, refill as specified in the engine manufacturer’s maintenance instructions. The radiator should be
filled to about 1 inch below the filler neck.For additional
information on engine coolant requirements see engine
manufacturer’s maintenance instructions.
INSTALLING THE BATTERY
**** CAUTION ****
EQUIPMENT DAMAGE - In the following battery installation procedure, check to be sure the selector switch remains in the “stop” position.
A customer supplied twelve-volt BCI group 24 battery
rated 650 CCA (minimum) is required to complete the installation. Install the highest CCA rated battery available
for best cold weather starting performance. Use only Main-
tenance Free batteries, this will reduce the need to refill
the battery with water. Gel batteries should not be used
with the battery tender installed in the generator enclosure.
****WARNING*****
EQUIPMENT DAMAGE - Always connect the positive
battery cable first and the negative cable last. When disconnecting a battery always disconnect the negative cable
first and the positive cable last. Failure to follow these
steps can cause arcing at the battery post which can
cause damage to both the engine and the engine control
module.
Observe polarities: Connect the positive (+) battery terminal to the (+) cable from the starter; the negative (-) battery terminal is connected to the negative cable (ground)
from the engine generator assembly.
** NOTICE **
The trickle charger is not intended to recharge a battery
which has become completely discharged. It is designed
to produce just enough current to maintain a fully charged
battery.
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, then
both the battery charger and the block heater can be connected to the same circuit. A 120 volt duplex receptacle is
mounted on the generator just below the engine control
panel, the battery tender is shipped already plugged into
the receptacle.
The engine blockheater has been prewired with a 120
volt plug which can be plugged into the other side of the
duplex receptacle after wiring 120 power feed to the receptacle. The blockheater is a 1000 watt, tank type heater with
an internal thermostat that will turn the heater on when the
water temperature drops to 60 degrees F. and off when
the water temperature reaches 80 Degrees F.
MOUNTING THE AUTOMATIC TRANSFER
SWITCH (A.T.S.)
*************
***** WARNING *****
*************
EQUIPMENT DAMAGE- Protect the switch from construction grit and metal chips to prevent a malfunction or
shortened life of the switch. Contactors returned for warranty consideration wilth foreign material inside of them will
not be warranted.
Page 61017-10 60706-144
FIGURE 5
sufficient to handle your complete service. (I.E. your main
line breaker rating does not exceed the line side contactor
rating.) See Figure 5. If you have a larger main line
breaker, you will not be able to transfer the complete electrical system. In this case it will be necessary to install a
secondary emergency distribution panel
PSS65000 - The Automatic Transfer Switch shipped
with the PSS65000 single phase units have 400 Amp line
side contactors installed to handle your normal power
needs and a 320 Amp generator side contactor to handle
the emergency generator output. For the three phase 240
volt and 208 volt units the Automatic Transfer Switches
come with 230 Amp line side and generator side contactors. If you are installing a 480 volt system check the
Transfer Switch for its contact rating. Before installing the
A.T.S. you must first ensure that the line side contactor will
be sufficient to handle your complete service. (I.E. your
main line breaker rating does not exceed the line side contactor rating.) See Figure 5. If you have a larger main line
breaker, you will not be able to transfer the complete electrical system. In this case it will be necessary to install a
secondary emergency distribution panel
*****NOTE*****
EQUIPMENT DAMAGE- The standard single phase
Winco ATS does not protect against undervoltage. If you
are in an area that is susceptible to brown outs (low voltage) you may want to consider adding an undervoltage
sensor to standard ATS panel.
Three phase unit shown, for single phase wir-
ing disregard L-2, T-2, G-2.
The automatic transfer switch connects the load (lights,
furnace, outlets, etc.) to the normal power line. When normal power fails, the A.T.S. starts the engine generator set,
disconnects the power line and then connects the load to
the standby generator set. When normal power is restored, the automatic switch retransfers the electrical load
to the normal service and stops the engine. The A.T.S.
panel should be mounted as close to the distribution panel
as possible.
*************
***** WARNING *****
*************
FIRE HAZARD - All wiring must be done by a licensed
electrician, and must conform to the national electrical
code and comply with all state and local codes and regulations. Check with the authorities before proceeding!
PSS50000 - The Automatic Transfer Switch shipped with
the PSS50000 single phase units have 400 Amp line side
contactors installed to handle your normal power needs
and a 320 Amp generator side contactor to handle the
emergency generator output. For the three phase 240 volt
and 208 volt units the Automatic Transfer Switches come
with 230 Amp line side and generator side contactors. If
you are installing a 480 volt system check the Transfer
Switch for its contact rating. Before installing the A.T.S.
you must first ensure that the line side contactor will be
*************
***** WARNING *****
*************
PERSONAL INJURY - Be certain the operation selector
switch on the front of the A.T.S. Control is in the “stop” position and the main power switch “off”. For your own protection, verify these important safety precautions yourself
with reliable instruments before proceeding.
A.C. ELECTRICAL CONNECTIONS
Single Phase
*************
***** WARNING *****
*************
A FUSED DISCONNECT OR CIRCUIT BREAKER
MUST BE INSTALLED BETWEEN THE GENERATOR
AND THE A.T.S. PANEL TO PREVENT OVERLOADING
AND BURNING OUT THE GENERATOR. FAILURE TO
PROVIDE A FUSED DISCONNECT OR CIRCUIT
BREAKER, RATED AT GENERATOR RATING WILL VOID
YOUR WARRANTY IN CASE OF GENERATOR FAILURE.
The standby generator terminals in the A.T.S are marked
“GENERATOR - G1, G-N, G3”. The “hot” leads G1 and G3
wire directly to the lugs on the generator side contactor,
terminals G1 and G3. The G-N connection is made at the
neutral bar on the standoffs on the floor of the A.T.S.
60706-144 Page 7 1017-10
The line terminals in the A.T.S. are marked “LINE - L1, LN, L3”. The “hot” leads L1 and L3 will wire directly to the
top lugs on the line side contactor. The L-N connection will
be made at the neutral bar on the standoffs on the floor of
the A.T.S.
The load terminals in the A.T.S. are marked “LOAD - T1,
T-N, T3”. The “hot” leads T1 and T3 will wire directly to the
load lugs between the contactors. s. The T-N connection
will be made at the neutral bar on the standoffs on the
floor of the A.T.S.
An equipment grounding lug is provided beside the neutral bar for your use in grounding the transfer switch.
Three Phase
*************
***** WARNING *****
*************
EQUUIPMENT DAMAGE - When installing a Three
Phase 240 volt system be sure you know which lead is the
high voltage "wild" leg (208Volt line to neutral). The generator normally carries the high voltage on the G3 lead.
INSTALLATION NOTES:
The load current carrying wires (L) and (T) must be sized
to handle the maximum load current without excessive
voltage drop. By code, the wire must be heavy enough to
handle the full current rating of the main line circuitbreaker (or fuse) in the entrance (or sub-panel) protecting
the contactor switch.
The standby generator terminals in the A.T.S. are
marked “GENERATOR - G1, G2, G3 and G-N. The “hot”
leads G1 G2 and G3 wire directly to the generator side
contactor, terminals G1, G2 and G3. The G-N connection
is made at the neutral bar on the standoffs on the floor of
the A.T.S.
The line terminals in the A.T.S. are marked “LINE - L1,
L2, L3 and L-N”. The “hot” leads L1, L2 and L3 will wire
directly to the top lugs on the line side contactor. The L-N
connection will be made at the neutral bar on the standoffs on the floor of the A.T.S.
The load terminals in the A.T.S. are marked “LOAD - T1,
T2, T3 and T-N”. The “hot” leads T1, T2 and T3 will wire
directly to the load lugs between the contactors. The T-N
connection will be made at the neutral bar on the standoffs on the floor of the A.T.S.
An equipment grounding lug is provided just above the TN connection for your use in grounding the transfer switch.
All the neutral leads (G-N, L-N and T-N) must be carried
through the A.T.S. These leads are all bonded together
within the A.T.S. and are bonded to GROUND at one common point. If your system requires an isolated neutral, this
neutral to ground bond can be isolated by removing the
copper strap located between the LINE terminal L-N and
the ground lug in the panel. This action, along with lifting
the Neutral to Ground bond in the generator connection
cabinet, will effectively change this unit to a fully isolated
neutral system.
The generator output leads in the generator connection
box follow the same marking pattern. i.e. G1, G-N and G3
on the single phase and G1, G2, G3 and G-N on the three
phase units.
A fused disconnect (circuit breaker or fuses) must be
installed between the engine generator and the A.T.S.
panel. See the generator specifications table on page 2
for disconnect sizing. Failure to install a proper fused disconnect will void any warranty on the generator end. All
wiring from the engine-generator to the transfer switch
must be of sufficient size to handle the appropriate fused
disconnect amperage.
All wires should be installed in rigid or flexible conduit.
(Knockouts are provided in the control box)
Because of the many different types of service, feeder,
and distribution equipment, no specific wiring instructions
can be provided. It is recommended that only copper wire
be used. In all cases it is essential that while the load is
connected to the generator, there can be absolutely no
feedback from the generator to the power line or the power
line to the generator. When properly installed, the normal
A.T.S. Control and safety systems will eliminate all paths
for feedback.
To wire the automatic transfer switch into the existing
wiring, first determine which circuits will be on the emergency load circuit. If the entire load is to be transferred,
the transfer switch can be wired in directly after the service
entrance, providing the service entrance ampere rating is
within the transfer switch’s rated capability.
If only specific circuits are to be powered under emergency power failure conditions, an additional distribution
panel designated “emergency distribution panel” must be
installed.
All selected emergency circuits are removed from main
distribution panels and reinstalled in the emergency distribution panel. Suggested circuits: freezer, refrigerator, furnace, emergency lights, sump pump, emergency outlet
circuits, etc. Total running load must not exceed generator rating.
Page 81017-10 60706-144
D.C. ELECTRICAL INTERCONNECTION
INITIAL START UP
PSS50000 and PSS65000
Two control wires are required between the A.T.S. panel
and the generator control terminal box. Depending on the
distance, 14 to 16 gauge stranded wire should be used.
These wires will be labeled S1 and S23.
*************
***** WARNING *****
*************
Be sure both the mode switch on the Engine Generator
and the mode switch in the Automatic Transfer Switch are
in the "OFF" postition before you make any DC interconnections.
The connections to the engine control will be made in a
2" X 4" connection box mounted on the back side of the
generator control box just above the engine control. The
wiring from the engine control has already been stubbed
into this connection box for your convenience. The wires
are labeled as follows:
Battery Negative #1 Yellow Wire S1
Start Signal #23 Yellow Wire S23
Battery Positive* #5 Yellow Wire #5
*Used for a stand alone battery charger only.
The connections in the automatic transfer switch will be
made on a terminal block. This terminal block is located in
the lower right hand corner on the back wall of the switch.
The terminals are labeled S1, and S23.
*************
***** WARNING *****
*************
EQUIPMENT DAMAGE - DO NOT jump start these engine generator sets. Starting these units on a low battery
or jump starting them will cause damage to the engine
control module.
Use the following check list to verify correct installation
before starting the engine:
1. Engine oil. Fill as required with proper grade/qty.
2. Engine coolant. Fill as required with proper
mixture.
3. Unit mounting base properly bolted down.
4. Clearance for service and maintenance on all
sides.
5. Proper fuel line material and size.
6. All fuel line connections tight.
7. Fuel line protected and a moisture trap installed
(may be required for N.G.).
8. LP/NG pressure O.K. 4-6 Oz. (7-11" Wc).
9. Battery connections clean and tight.
10. Battery fully charged.
11. All A.C. and D.C. wiring installed and properly
protected.
After completing the above checklist, the engine-gen-
erator set is ready for the initial start-up test.
PROCEDURE
These control wires MUST NOT be run in the same conduit as the AC power leads coming from the generator or
the 120 volt circuit for the battery charger and block heater.
*************
***** WARNING *****
*************
EQUIPMENT DAMAGE - DC connections between
Winco engine generators and other makes of Automatic
Transfer Switches will vary. The Winco engine generator
sets require a relay closure between Battery Negative
(wire S1) and Start ( wire S23) to operate. The Battery
Positive is not used in the A.T.S. panels. Connecting Battery Positive in any switch can cause permanent damage
to the engine control module
*************
***** WARNING *****
*************
EQUIPMENT DAMAGE - Because these tank heaters
are connected to the water in the engine it is imperative
that you inspect the heater hoses routinely to insure they
are not leaking or deteriorating. A broken heater hose will
drain the coolant out of the engine which could lead to
catastrophal engine failure.
Move the selector switch on the engine generator to the
“RUN” position. The engine-generator will crank and start
automatically. If the engine fails to start, return selector
switch to the “stop” position and correct the trouble before
proceeding.
With the engine running smoothly check the no load voltage and frequency at meters on the front panel. The voltage should be 240 A.C. and a frequency of 60 (Hz). If you
have the proper voltage at the generator the next step is to
check the voltage at the generator terminals in the Automatic Transfer Switch. The voltage between the G1 and
the G3 terminals should be the same as it was on the front
panel. The voltage should also be checked between the
hot terminals (G1 and G3) and the G-N to be certain of a
balanced voltage output and a solid neutral connection.
The voltage between G1 and G-N should be about one
half of the line to line (G1 to G3) voltage or approximately
120 volts AC. The same approximate voltage should be
found between terminals G3 and G-N (120 volts AC). On
three phase panels the G2 voltage level should also be
checked. ON 240 VOLT (DELTA) SYSTEMS BE SURE
YOU KNOW WHERE THE HIGH VOLTAGE "WILD" LEG
IS. IT MUST BE IN THE SAME LOCATION ON THE LINE
SIDE AS IT IS ON THE GENERATOR SIDE. (i.e. if it's on
L-3 on the line side it must be on G-3 on the generator
side.
60706-144 Page 9 1017-10
** Notice **
If for any reason during the check out procedure the voltage and frequency are not correct, turn the selector switch
to the “STOP” position and correct the trouble before proceeding.
After verifying the that voltage and frequency are correct,
turn the selector switch to the “STOP” position. The unit
should shut off with no time delay. You are now ready to
test the automatic start function.
3.Push the "Hour Select Button" until the display indi
cates the correct time in hours. Note: In the afternoon
you should push the button until a "P" is displayed be
side the correct hour.
4.Push the "Minute Select Button" until the display indi
cates the correct time in minutes.
5.Position the top right hand (RUN) slide switch to the
center position. The correct time and date should now
be displayed.
Move the selector switch on the engine generator set to
the “AUTO” position. Next move the selector switch on the
A.T.S. panel to the “START” position. The unit will go into
a 10 second start delay and then start up. If it fails to start
at this time, the DC interconnection wiring is incorrect.
Now when the selector switch on the A.T.S. is moved to
the “DISABLE” position the unit will go into a 3 minute cool
down and then shut off. As long as line power is still applied to the transfer switch during this test period the
A.T.S. will not transfer the load to the generator.
Next you need to test the complete system. To accomplish this you will have to fail the incoming line power to the
A.T.S. panel. First move both selector switches to the automatic position. Then fail the incoming power. All the
loads connected to the A.T.S. should now be dead. The
engine generator set will go into a 10 second start delay.
At the end of the start delay the unit will start-up. As soon
as the engine generator set reaches operating speed the
generator side contactor will close and the load will be applied to the engine generator.
Restoring the line power will cause the generator side
contactor in the A.T.S. to open and the line side to close as
soon as the generator side is open. This sequence is controlled by the electrical and mechanical interlocks in between the two contactors in the A.T.S. panel. These interlocks ensure that you get a clean 'break before make' action in the transfer switch.
The restoration of line power also sends a stop signal to
the engine generator set. This stop signal will activate the
3 minute timer circuit and shutdown the unit 3 minutes
later.
This completes your installation and unit testing. ALWAYS leave the system in standby mode unless servicing
the unit. For standby operation, keep both the generator
set and transfer selector switches in the “AUTOMATIC”
position.
Setting the Exerciser Program:
NOTE: The programs on this clock are grouped. i.e. 1
and 2, 3 and 4, etc. The start time is programed on the
odd number and the stop time is programed on the even
number in each program set.
1.Position the top right hand (RUN) slide switch to the
right hand position.
2.Position the top left hand (AUTO) slide switch to the
center postion.
3.Press the "Program Select Button" until No 1 is dis
played on the clock to the right of the time.
4.Push the "Day Select Button" to select the day you
want the engine generator set to start up and run.
Note: You can get more than one triangle displayed
on the clock. If this happens just keep pressing the
button and it will work back through the cycle and dis
play only one traingle under whichever day you desire.
5.With the "Hour" and "Minute" buttons select the time of
day you want the engine to start up.
6.Press the "Program Select Button" until number 2 is
displayed on the clock.
7.Push the "Day Select Button" to select the day you
want the engine to stop. This must be the same day
you selected in step 4 above.
8.With the "Hour" and "Minute" buttons, select the time
you want the engine to stop. It is recommended you
let the engine run at least 15 minutes during any exer
cise period.
9.Position the top right hand (RUN) slide switch to the
center (RUN) position.
CLOCK NOTES:
SETTING THE EXERCISER CLOCK
Setting the current time and date.
1.Position the top right hand (RUN) slide switch to the
left position.
2.Push the clock's "Day Select Button" until the clock
displays a triangle under the number corresponding to
the current day of the week. (Monday is day 1, Sunday
is day 7)
This seven day exerciser clock has seven additional program cycles available. Always keep in mind the odd number turns the unit on and the even number shuts the unit
off. (i.e. (3 on, 4 off) (5 on, 6 off) etc.
The relay in the clock will not work unless the transfer
switch is installed and powered up. The clock relay needs
120 volts AC to operate.
Page 101017-10 60706-144
If, when you finish programing the clock, you get an
EEEE on the display, it stands for error. The most common error is that the day of operation has not been properly set at each step or a progam has been turned on and
not turned off. i.e. programs not properly grouped 1& 2, 3 &
4, 5 & 6, etc.
On the face of the clock is a small button marked "R".
This is a reset switch. Depressing this switch will remove
all programing in the clock including the time, Use a small
screwdriver or the tip of a pencil to depress this button.
This should be used only as a last resort.
TROUBLESHOOTING TABLES
UNIT WILL NOT CRANK WHEN THE POWER
FAILS.
1. Generator control switch not in "AUTOMATIC"
position.
2. Transfer control switch not in "AUTOMATIC"
position.
3. Incorrect wiring between transfer switch and
generator.
4. Defective start stop relay in the transfer
switch.
5. Circuit breaker tripped on engine control.
6. 3/4 amp fuse blown inside engine control.
7. Defective engine control module.
8. Loose or dirty battery terminals.
9. Defective "Run/Auto" switch on generator or
transfer switch.
10. Defective starter.
11. Defective start solenoid.
12. Defective remote start solenoid.
ENGINE WILL NOT CRANK WITH GENERATOR
SELECTOR SWITCH IN THE RUN POSITION.
1. Battery dead.
2. DC circuit breaker on control panel tripped.
3. 3/4 amp fuse blown inside control module.
4. Defective engine controller.
5. Circuit breaker tripped on engine control.
6. Loose or dirty battery terminals.
7. Defective "Run/Auto" switch on generator.
8. Defective starter.
9. Defective start solenoid.
10. Defective remote start solenoid.
11. Locked up engine genset.
ENGINE CRANKS BUT WILL NOT START
ENGINE STARTS AND THEN STOPS AND FAULT
LIGHT COMES ON
1. Engine is low on oil.
2. Engine has high water temperature.
3. Engine has oversped.
4. Engine has gone into overcrank.
5. No output from engine alternator to engage
stop crank circuit.
ENGINE WILL NOT COME UP TO SPEED AFTER
IT STARTS
1. Insufficent fuel volume getting to the unit.
a. Too small of fuel line.
b. Fuel pressure too low/high.
2. Fuel load block needs to be adjusted.
3. Governor is out of adjustment.
4. AC short in generator components.
ATS PANEL WILL NOT TRANSFER TO EMERGENCY SUPPLY (GENERATOR)
1. No AC generator output from generator.
2. Broken or defective mechanical/electrical
interlocks.
3. Defective holding coil in the generator side
contactor.
4. Wiring error between generator and transfer
switch.
ATS PANEL WILL NOT RETRANSFER TO NORMAL POWER
1. Proper normal line power not available at line
terminals in ATS panel.
2. Defective holding coil in line side contactor.
3. Broken or defective mechanical/electrical
interlocks.
NO AC OUTPUT FROM GENERATOR
1. Defective rectifier.
2. Defective surge suppressor.
3. Defective voltage regulator.
4. Defective rotor.
5. Defective stator.
6. Defective excitor rotor.
7. Defective excitor stator.
8. AC short in the output leads.
9. Defective field circuit breaker.
1. Improper fuel pressure being delivered to
unit.
2. Fuel supply shut off.
3. Fuel tank empty.
4. Defective spark plug.
5. Defective engine ignition module.
6. Dirty air cleaner filter.
7. Defective fuel solenoid valve.
60706-144 Page 11 1017-10
LP/NG FUEL ADJUSTMENTS
FUEL TYPE CONVERSION
**** CAUTION ****
EQUIPMENT DAMAGE - Do not make any fuel adjustments or governor adjustments until all pressure readings
are in compliance with specification. See fuel pressure
charts (tables 1, 2, and 3).
NATURAL GAS (NG)
Due to variations in NG fuel characteristics and BTU levels throughout the country, it may be necessary to readjust
the fuel mixture once the engine has been installed and
serviced.
**** CAUTION ****
EQUIPMENT DAMAGE - Never make a fuel mixture adjustment on a unit when it is stopped or running no load. A
mixture adjustment is only effective when the engine is
operating under load.
Adjustment Procedure
1.Ensure the unit is operating under an 80 to 100% load
or at the highest anticipated load.
Note: On these units the mixture adjustment is located on
the bottom of the fuel inlet housing on the carburetor. This
mixture adjustment is a partial turn, lean to rich, load block.
2.Begin making a mixture adjustment, listen to how the
engine is running. You want to get the engine running as
smoothly as possible under load. If the fuel is too rich or
too lean, the engine will start to struggle to maintain the
proper loaded RPM.
3.Because this engine generator set is equipped with an
electronic governor the frequency should remain correct,
but it is a good idea to check the frequency after making a
fuel adjustment just to be sure.
4. If it should become necessary to adjust the governor,
the control module is mounted on the left side of the control panel support brackets.
**** CAUTION ****
EQUIPMENT DAMAGE - Under full load do not adjust
the Hz above 60. If a higher Hz reading is used, as the
load is decreased the Hz will go out of upper limits (61 to
62 Hz).
PROPANE (LP)
If it should be necessary to change the type of fuel being
used after the unit has been shipped from the factory it will
be necessary to change the air gas valve assembly in the
vapor fuel carburetor. The following conversion procedures are provided.
AIR GAS VALVE ASSEMBLY PART NUMBERS
Natural Gas P/N 98754-700
LP P/N 98754-701
NOTE: For conversion to/from liquid withdrawal LP consult the factory. Additional parts will be required for this
conversion.
NATURAL GAS TO PROPANE VAPOR
1. Turn off fuel supply.
2. Remove the fuel line from the carburetor at the
demand regulator.
3. Remove the cap on the upright column of the
regulator. This will expose the pressure spring
adjusting screw. Back off the spring adjusting screw
so there is just enough room to replace the cover.
Replace the cover.
4. Invert the regulator so it is positioned with the
column pointing down.
5. Remove the Air Cleaner to expose the top of
carburetor.
6. Remove the six screws holding the top on the
carburetor and remover the air gas valve assembly.
7. Install the new air gas valve assembly part number
98574-701. Replace the top of the carburetor and
tighten all six screws uniformly and reinstall the air
filter.
8. Reconnect the fuel line at the regulator.
9. Remove the 1/8 NPT plug (the one closest to fuel
solenoid) located on what is now the top of the
regulator. Connect a fuel pressure meter or a
monometer where the plug has been removed. Move
the generator control switch to the run position. As
the unit starts to crank the fuel solenoid will open
and you should get a pressure reading of between 4
to 6 ounces (7 to 11 inches of water column).
A generator set factory tested on LP will normally require
no adjustment. If for some unforeseen reason the machine
should require adjustment, follow the above procedure.
Page 121017-10 60706-144
10. If the pressure is correct, remove the meter and reinstall the pipe plug.
11. You are now ready to make the final fuel mixture
adjustment. Refer to adjustment section in this
manual.
PROPANE VAPOR TO NATURAL GAS
1. Turn off fuel supply.
2. Remove the fuel line from the carburetor at the
demand regulator.
3. Invert the regulator so the column is in the upright
position. Remove the cap on the upright column of
the regulator. This will expose the pressure spring
adjusting screw. Turn the screw all the way out
(CCW) and then back in (CW) about 8 turns. The
plug should be approximately half way down for
initial starting.
4. Remove the Air Cleaner to expose the top of
carburetor.
5. Remove the six screws holding the top on the
carburetor and remover the air gas valve assembly.
6. Install the new air gas valve assembly part number
98574-700. Replace the top of the carburetor and
tighten all six screws uniformly and reinstall the air
filter.
7. Reconnect the fuel line at the regulator.
8. Remove the 1/8 NPT plug (the one closest to fuel
solenoid) located on what is now the bottom of the
regulator. Connect a fuel pressure meter or a
monometer where the plug has been removed. Move
the generator control switch to the "run" position. As
the unit starts to crank the fuel solenoid will open
and you should get a pressure reading of between 4
to 6 ounces (7 to 11 inches of water column).
9. If the pressure is correct, remove the meter and reinstall the pipe plug. Next remove the 1/8 inch NPT
plug on the carburetor side of the regulator and
install the pressure meter. Move the generator
switch to the run position. As soon as the solenoid
opens the pressure should rise to 2.5 to 3 oz. just as
the engine starts to crank. If it is within this range
replace the cap on the column. If not, adjust the
screw down to increase and up to decrease and retest.
10. You are now ready to make the final fuel mixture
adjustment. Refer to adjustment section in this
manual.
60706-144 Page 13 1017-10
U6 - T10
U2 - T4
U5 - T7
U1 - T1
N = N
W =L3
V =L2
U =L1
Ref.
Lead Cross
THREE PHASE-HIGH WYE
277/480 VOLTS
W6 - T12
W2 - T6
W5 - T9
U6 - T10
U2 - T4
U5 - T7
W1- T3
U1 - T1
N = N
V6- T11
V2 - T5
V5 - T8
W =L3
V =L2
V1 - T2
U =L1
Ref.
Lead Cross
HIGH AND LOW WYE
THREE PHASE AC WIRING
W6 - T12
W2 - T6
W5 - T9
V6- T11
W1- T3
V1 - T2
V2 - T5
V5 - T8
THREE PHASE-LOW WYE
120/208 VOLTS
Page 141017-10 60706-144
THREE PHASE -DELTA
120/240 VOLTS
V1 - T2
V2 - T5
V5 - T8
W1- T3
V6- T11
W2 - T6
W5 - T9
W6 - T12
SINGLE PHASE
120/240 VOLTS
Ref.
V =L2
U =L1
Lead Cross
N = N
W =L3
U1 - T1
U2 - T4
U5 - T7
U6 - T10
60706-144
THREE PHASE AC WIRING - DELTA
SINGLE PHASE AC WIRING
Page 15
Ref.
U1 =L1
U6 =L3
Lead Cross
N = N
U1 - T1
U2 - T2
U5 - T3
1017-10
U6- T4
VOLTAGE REGULATOR WIRING
THREE PHASE AND SINGLE PHASE
CONTROL PANEL WIRING
THREE PHASE AND SINGLE PHASE
THREE
SINGLE
PHASE
PHASE
Page 161017-10 60706-144
DC SCHEMATIC
60706-144
Page 17
1017-10
CONTROL PANEL WIRING THREE PHASE
CONTROL PANEL WIRING SINGLE PHASE
Page 181017-10 60706-144
CONTROL PANEL
60706-144
Page 19
1017-10
12 MONTH LIMITED WARRANTY
WINCO, Incorporated warrants to the original purchaser for 12 months that goods manufactured or
supplied by it will be free from defects in workmanship and material, provided such goods are installed, operated and maintained in accordance with Winco written instructions.
WINCO’s sole liability, and Purchaser’s sole remedy for a failure under this warranty, shall be limited
to the repair of the product. At WINCO’s option, material found to be defective in material or workmanship under normal use and service will be repaired or replaced. For warranty service, return the
product within 12 months from the date of purchase, transportation charges prepaid, to your nearest
WINCO Authorized Service Center or to WINCO, Inc. at Le Center Minnesota.
THERE IS NO OTHER EXPRESS WARRANTY.
To the extent permitted by law, any and all warranties, including those of merchantability and fitness
for a particular purpose, are limited to 12 months from date of purchase. In no event is WINCO liable
for incidental or consequential damages.
Note: Some states do not allow limitation on the duration of implied warranty and some states do
not allow the exclusion or limitation of incidental or consequential damages, so the above limitations
may not apply in every instance. This warranty gives you specific legal rights which may vary from
state to state.
WINCO reserves the right to change or improve its products without incurring any obligations to
make such changes or improvement on products purchased previously.
EXCLUSIONS:
WINCO does not warrant engines, batteries, or other component parts that are warranted by their
respective manufacturers.
WINCO does not warrant modifications or alterations which were not made by WINCO, Inc.
WINCO does not warrant products which have been subjected to misuse and/or negligence or have
been involved in an accident.
1017-10
60706-144
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