Winco PSS20B2W/D Setup guide

PSS20B2W/D
GENERATOR
INSTALLATION AND
OPERATORS MANUAL
16200-009

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60706-259/A
TABLE OF CONTENTS
SAVE THESE INSTRUCTIONS 3
SAFETY 4
SPECIFICATIONS 5
GENERATOR
ENGINE
INTRODUCTION 6
TESTING POLICY
PRODUCT DESCRIPTION
PREPARING THE UNIT 7
UNPACKING
LUBRICATION
OIL RECOMMENDATIONS
INSTALLATION 8
GENERATOR CLEARANCES
ENGINE-GENERATOR SET MOUNTING
FUEL INSTALLATION 8
LIQUID PROPANE VAPOR (LP)
NATURAL GAS (NG)
FUEL PRESSURE
FUEL PRESSURE TABLES
NG/LP FUEL CONVERSION
BATTERY INSTALLATION 11
SERVICING BATTERIES
BATTERY CHARGING
CONNECTING BATTERY CHARGER
GENERATOR CONNECTIONS
WINCO UL ATS (ASCO 185)
AC ELECTRICAL CONNECTIONS 13
ASCO 185 UL SWITCH
DC ELECTRICAL INTERCONNECTION 15
INITIAL START UP 16
START UP PROCEDURE
DSE 3110 20
FRONT PANEL CONFIGURATION
ACCESSING THE FRONT PANEL
EDITING A PARAMETER
DSE 3110 FAULT CODES
DSE 3110 ENGINE CONTROL
MODULE DISPLAY
AUTOMATIC TRANSFER SWITCH
ENGINE-GENERATOR SET
PREVENTATIVE MAINTENANCE 22
TROUBLESHOOTING 23
OUTLINE DRAWING 24
PAD LAYOUT 25
AC AND DC GENERATOR SCHEMATIC 26
AC WIRING SCHEMATIC 27
24 MONTH LIMITED WARRANTY 28

360706-259/A
SAVE THESE INSTRUCTIONS
This manual contains important instructions that should
be followed during installation and maintenance of the
generator. Read and understand all instructions in the
manual before starting and operating the generator.
USING THIS MANUAL
Congratulations on your choice of a WINCO generator.
You have selected a high-quality, precision-engineered
generator designed and tested to give you years of
satisfactory service.
To get the best performance from your new generator, it is
important that you carefully read and follow the operating
instructions in this manual.
Should you experience a problem please follow the
“Troubleshooting Tables” near the end of this manual.
The warranty listed in the 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. 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 NAME ______________________________________
DEALER PHONE # ____________________________________

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SAFETY
IMPORTANT SAFETY INSTRUCTIONS
This engine generator set has been designed and
manufactured to allow safe, reliable performance. Poor
maintenance, improper or careless use can result in
potentially 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.
SAFETY DEFINITIONS
DANGER
Indicates an imminently hazardous situation
which, if not avoided, will result in death or
serious injury.
WARNING
Indicates a potentially hazardous situation
which, if not avoided, could result in death
or serious injury.
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.
CALIFORNIA PROPOSITION 65
WARNING: This product contains crude oil,
gasoline, diesel fuel and other petroleum
products, Antifreeze to which can expose you
to chemicals including toluene and benzene,
Ethylene glycol (ingested) which are known to the
State of California to cause cancer, birth defects or other
reproductive harm and developmental issues.
For more information go to www.P65Warning.ca.gov.
DANGER: ELECTRICAL SHOCK
The output voltage present in this equipment can cause
fatal electric shock. This equipment must be operated by a
responsible person.
A. Do not allow anyone to operate the generator
without 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-pronged grounded receptacles
and extension cords.
F. Be sure the unit is properly grounded for your
application.
DANGER: 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.
A. Operate only in well ventilated areas.
B. Never operate indoors including attached
garages
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, floors).
WARNING: FIRE HAZARD
Gasoline and other fuels present a hazard of possible
explosion and/or fire.
A. Do not refuel when the engine is running or hot.
B. Keep fuel containers out of reach of children.
C. Do not smoke or use open flame near the
generator set or fuel tank.
D. Keep a fire extinguisher nearby and know its
proper use. Fire extinguishers rated ABC by
NFPA are appropriate.
E. Store fuel only in an approved container, and
only in a well ventilated area.
F. Follow local codes for closeness to combustible
material.
CAUTION: PERSONAL INJURY
The muffler becomes very hot during operation and for a
period after the unit has been turned off. Do not touch the
muffler until it has completely cooled off.
CAUTION: NOISE HAZARD
Excessive noise is not only tiring, but continual exposure
can lead to loss of hearing.
A. Use hearing protection when working around
this equipment for long periods of time.
B. Keep your neighbors in mind when using this
equipment.
CAUTION
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 materials that could
create a potential fire hazard.
C. Carefully clean up any gas or oil spills before
starting the unit.
CAUTION
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, covers, or
receptacle panels while the engine is running.
D. Use extreme caution when working on electrical
components. High output voltage from this
equipment can cause serious injury or death.
E. Always avoid hot mufflers, exhaust manifolds,
and engine parts. They can cause severe burns
instantly.
F. The use of the engine-generator set must comply
with all national, state, and local codes.

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SPECIFICATIONS
GENERATOR
Fuel Watts* Volts Amps HZ PH RPM
LP 17,000 120/240 70.8 60 13600
NG 15,000 120/240 62.5 60 13600
*Continuous rating.
Derate 3.5% per 1000 feet elevation above sea level.
FUEL CONSUMPTION
Natural Gas
1000 BTU/FT³
LP Vapor
2520 BTU/FT³
CF/HR* 328 130.5
BTU/HR* 328,000 329,000
GAL/HR* N/A 3.61
*Based on full load operation.
LP TANK SIZING
Tank Temperature Tank Size
60° F (16° C) 150 Gallons
32° F (0° C) 250 Gallons
0° F (18° C) 500 Gallons
-20° F (-29° C) 1000 Gallons
ENGINE
Make Briggs & Stratton
Model Vanguard
Displacement 993CC/OHV
Cylinders/Sleeves V-Twin/Cast Iron
Ignition Electronic
Governor Mechanical
Exhaust Critical Grade, Glass-pack
See engine manual for additional information

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INTRODUCTION
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 generator 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 applicable engines.
PRODUCT DESCRIPTION
The package standby system is designed to automatically
provide standby power to unattended loads during
electrical outages. Upon interruption of normal electrical
service, the packaged standby system electrical control
circuits will automatically start the engine. The generator
will produce electrical power and the Automatic Transfer
Switch (ATS) 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 transfer the load back to the normal
commercial power source. The engine control circuits will
begin a cool-down cycle, after which the fuel supply will be
shut off and the engine ignition system disabled.
These packaged standby systems consist of two major
components:
1. AUTOMATIC TRANSFER SWITCH
A wall mounted ASCO 185 Automatic Transfer Switch
(ATS) designed for inside or outside installation. The
transfer switch is UL1008 approved. A fourteen day
electronic exerciser circuit is installed in the ATS as standard
equipment. The ATS also contains the power failure sensing
circuitry necessary to start and stop the engine generator
set. The transfer switch is also equipped standard with a 3
second start delay, and a 15 second transfer delay to allow
the engine to warm up before transferring the load to the
generator. When the line power is restored the ATS has
a 5 minute transfer delay to allow the incoming utility to
stabilize before transferring back to line power and then
an additional 1 minute engine cool down delay before the
engine shuts down. Read and understand the ATS owners
manual before installing, servicing or operating the transfer
switch.
UL Automatic Transfer Switch Sizes
LINE SIDE GENERATOR
UNIT CONTACTOR SIDE CONTACTOR
ULPSS20BW 100 AMPS 100 AMPS
200 AMPS 200 AMPS
Both the 100 amp and the 200 amp UL Switches are
available in single phase only.
2. ENGINE / GENERATOR
The engine generator set consists of a Briggs & Stratton
Vanguard, twin cylinder, four cycle air cooled engine,
model 613277-0161-B1. The engine is factory equipped
to run on LP or NG fuel. The engine operates at 3600 rpm
and frequency regulation is maintained by the engine
governor within 4 cycles variation (62.5 Hz - 58.5 Hz) from
no load to rated load. The generator is a brushless, single
bearing, direct drive, rotating field design. The generator
is connected to the engine’s tapered (quill) crankshaft
extension. The engine generator is mounted in a drip-proof
enclosure for outside installation. Connection boxes and
terminal blocks are provided for all customer connections
(both AC output and DC control). A customer supplied 12
volt 500 CCA (BCI group 26) battery is required to complete
the installation.
NOTICE
This unit will automatically transfer if a power outage
occurs while running in an exercise mode.

760706-259/A
PREPARING THE UNIT
UNPACKING
CAUTION: EQUIPMENT DAMAGE
When you unpack your new generator, be sure to remove
all of the information sheets and manual from the carton.
1. As you receive your unit, it is critical to check it for any
damage. If any damage is noted, it is always easiest to
refuse the shipment and let WINCO take care of the freight
claim. If you sign for the unit, the transfer of the ownership
requires that you file the freight claim
2. Before proceeding with the preparations of your new
generator for operation, take a couple of minutes to ensure
the unit you have received is the correct model and review
the specification pages in this manual to ensure that this
unit meets your job requirements.
CAUTION
These units are shipped with oil. Be sure to check oil levels
before operating. See engine manufacturer’s instruction
manual for recommended oil requirements before initial
starting.
LUBRICATION
Before starting the engine, fill the crankcase to the proper
level with a good quality oil. The recommended grade oil
and quantity of oil required is listed in the engine operator’s
manual and under the service tab in this manual. This unit
was shipped with most of the oil removed.
The engine normally holds 80 ounces (2.5 quarts) of oil.
Since there is some trapped in the engine, when filling the
crankcase the first time, use the dipstick (‘A’ in following
image) to ensure that you do not over fill the crankcase. The
full oil level mark on the dipstick is depicted in the following
image as ‘B’.
Oil is added to the engine by removing the oil cap and
adding oil at this point. After filling the crankcase to the
proper level, be sure you properly tighten the oil fill cap (‘C’).
NOTE: This engine generator must be on a level surface
before you check or add oil to the system.
The necessity of using the correct oil and keeping the
crankcase full cannot be overemphasized. Engine failures
resulting from inadequate or improper lubricant are
considered abuse and not covered by the generator or
engine manufacturer’s warranty.
OIL RECOMMENDATIONS
Outdoor temperatures determine the proper oil viscosity for
the engines. Winco recommends our 5W-30 fully synthetic
oil to give you excellent protection in cold temperatures
while maintaining excellent performance in warmer
weather.

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INSTALLATION
GENERATOR CLEARANCES
These units should be mounted a minimum of 24” from
a structure. This will allow for ample room to maintain
and work on the generator set. Units must be installed in
accordance with all local, state, and national codes. Consult
your local agency for specific requirements.
DANGER: DEADLY EXHAUST GAS
Carbon monoxide (CO) is an orderless, deadly gas. Keep
genset exhaust a minimum of 60 inches away from vents,
windows, doors, soffit, and other openings to the building.
Check with local codes for more information about
generator clearances. Failure to safely install your genset
can result in serious personal injury and/or death.
ENGINE-GENERATOR SET MOUNTING
WARNING
Before proceeding with installation, be sure the operation
selector switch is in the stop position.
These engine generator sets are designed to be mounted
on a pad outdoors only. The transfer switch is mounted
next to your electrical entrance or distribution panel
inside or outside 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. Before beginning the installation process
check 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.
WARNING: PERSONAL INJURY
The enclosures on these units can become very hot
adjacent to the exhaust areas. Special care must be taken
when installing these units to insure that the risk of contact
by people is minimized.
The unit’s main frame should be bolted to a pad that meets
local code. Various materials, including concrete and
composites, are acceptable as long as they are structurally
sound supporting the weight of the unit and preventing
movement during operation. The mounting holes on the
base of this unit is 0.563” in diameter. The engine-generator
is mounted on a sub-frame which is isolated with special
shock mounts on the main frame. This allows the engine-
generator to vibrate without affecting the control panel on
the main frame.
Do not install any shock mounts between the base frame
and the pad. Engine vibration will be transmitted to the
control panel causing erroneous start/stop cycles and
premature control failure.
FUEL INSTALLATION
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
and information provided be interpreted to conflict with
any local, state or national codes. If in doubt, always consult
your local fire marshal, gas supplier or building inspector.
WARNING: FIRE HAZARD
All fuel runs should be installed by a licensed fuel supplier.
60” Minimum
60” Minimum
60” Minimum
24” Minimum
24” Minimum

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To connect the fuel line to the generator set you will
connect your incoming fuel line to the 3/4 inch NPT fitting
located on the left side of the engine-generator set. This
fitting is shipped with a plastic plug installed to insure
the fuel system stays clean. For all vapor fuel systems the
delivery pressure of the fuel to the fuel solenoid on the unit
must be four to six ounces psi (per square inch) or 7 to 11
inches W.C. (water column). These fuel pressures are critical;
failure to provide the proper pressure can cause many
problems ranging from a unit that will not start to causing
damage to the fuel system.
These units are normally tested on both fuels and usually
shipped ready to run on LP. If you have to change fuel
types at any time, see information on page 10 on NG/LP
CONVERSION. INSTALLING THE FUEL LINE
NATURAL GAS or LP VAPOR PIPE SIZE
Size of pipe normally required for generators operating on
natural gas or LP vapor. Unit location will determine the
size of fuel line that is required to supply the engine with a
constant fuel pressure and volume.
LIQUID PROPANE VAPOR (LP)
Refer to the tables on the following pages for fuel line size
and recommended tank size. For distances of 100 feet or
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 low pressure regulator is installed to further reduce
the fuel pressure to the required four (4) to six (6) oz.
operating pressure. This low pressure 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. This is also true for the single low pressure
regulator, it should also be a minimum of 10 feet from the
unit. 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 the two (2) regulator system is
used on LP, a fuel line size of 1/2 to 5/8 inch is generally
adequate for distances up to 300 feet from the primary to
the low pressure regulator. Consult your local fuel supplier
for your exact requirements . The appropriate line size from
the following table is then installed from the low pressure
regulator to the generator set.
Feet* Size of pipe
10 - 25 ft ¾” pipe
25 - 100 ft 1” pipe
Over 100 ft Use a two regulator system
*Allow an additional 3 feet for each standard elbow. DO
NOT use ‘street ells’ (restrictive).
LP TANK SIZING
Tank Temperature Tank Size
60° F (16° C) 150 Gallons
32° F (0° C) 250 Gallons
0° F (18° C) 500 Gallons
-20° F (-29° C) 1000 Gallons
NATURAL GAS (NG)
The primary regulator (fuel meter) on the building should
deliver the correct volume and pressure to the generator
set. This regulator must be sized to deliver the required
BTU’s to the generator set and all other appliances in the
building. If the primary regulator (fuel meter) is a high
pressure regulator, then a low pressure regulator must be
installed to bring the pressure down to 4-6 oz. (7-11 inches
water column) of pressure. This low pressure 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. This regulator must be sized to
accommodate the demand of the generator set and any
other appliance connected to it. See the following table for
the correct size of pipe to be installed.
Feet* Size of pipe
10 - 25 ft ¾” pipe
25 - 100 ft 1” pipe
Over 100 ft Use a two regulator system
*Allow an additional 3 feet for each standard elbow. DO
NOT use ‘street ells’ (restrictive).
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 to
hazardous fuel leaks.
CAUTION
Be careful when sealing gas joints. Excessive sealing
compound can be drawn into the solenoid, regulator or
carburetor causing an engine malfunction.
FUEL PRESSURE
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 diagram of a typical LP vapor fuel installation.
Notice the following tables give two different units of
measuring fuel pressure. The first and most accurate is
the use of a simple water manometer. A manometer is
calibrated in inches of water column . The second is with a
pressure gauge calibrated in ounces per square inch.

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Reference numbers 1 through 3 in the diagrams above are
system parts supplied by the customer. Reference number 4
is on the generator.
The following diagram is of a natural gas (NG) installation.
Reference numbers 2 through 4 in the previous diagram
are system parts supplied by the customer. Reference
number 4 is on the generator.
FUEL PRESSURE TABLES
The following tables are the fuel pressure readings at each
reference in the system.
Single low pressure regulator (LP vapor only)
Ref# 134
Unit off Line PSI 7-11 in
4-6 oz
7-11 in
4-6 oz
Starting Line PSI 7-11 in
4-6 oz
7-11 in
4-6 oz
No load Line PSI 7-11 in
4-6 oz
7-11 in
4-6 oz
Full load Line PSI 7-11 in
4-6 oz
7-11 in
4-6 oz
Two regulator system (LP vapor only)
Ref# 1 2 3 4
Unit off Line PSI 10-15 lbs 7-11 in
4-6 oz
7-11 in
4-6 oz
Starting Line PSI 10-15 lbs 7-11 in
4-6 oz
7-11 in
4-6 oz
No load Line PSI 10-15 lbs 7-11 in
4-6 oz
7-11 in
4-6 oz
Full load Line PSI 10-15 lbs 7-11 in
4-6 oz
7-11 in
4-6 oz
Natural gas
Ref# 234
Unit off 2 PSI 7-11 in
4-6 oz
7-11 in
4-6 oz
Starting 2 PSI 7-11 in
4-6 oz
7-11 in
4-6 oz
No load 2 PSI 7-11 in
4-6 oz
7-11 in
4-6 oz
Full load 2 PSI 7-11 in
4-6 oz
7-11 in
4-6 oz
NG/LP FUEL CONVERSION
These units are normally tested on both fuels and usually
shipped ready to run on LP. The carburetion system has
been preset and anti-tamper plugs have been installed in
the carburetor as required by the EPA.
To make a fuel conversion you will have to first remove the
front louver panel and locate the fuel regulator. Turn the
knob to the appropriate fuel source. Re-install the louver
panel.
No other modifications to the unit are necessary.

11 60706-259/A
WARNING
The electrolyte is a diluted sulfuric acid that is harmful to
the skin and eyes. It is electrically conductive and corrosive,
The following precautions must always be taken:
1. Always wear full eye protection and protective clothing.
2. Where electrolyte contacts skin, wash off immediately
with water.
3. If electrolyte contacts the eyes, flush immediately and
thoroughly with water. Seek immediate medical
attention.
4. Spilled electrolyte is to be washed down with an acid
neutralizing agent. A common practice is to use a
solution of one pound of biocarbonate of soda (baking
soda) to one gallon of water. The biocarbonate of soda
is to be added until the evidence of reaction, foaming,
has ceased the resulting liquid is to be flushed with
water and the area dried.
DANGER: EXPLOSIVE FIRE RISK
Never smoke near batteries
Do not cause a flame or spark in the battery area.
Always discharge static electricity from your body before
touching batteries by first touching a ground metal
surface.
SERVICING BATTERIES
Batteries used on these units may over time lose water.
This is especially true if you are using a trickle charger to
maintain your battery. When refilling the battery with
water, use only distilled water. Tap water will shorten the
service life of the battery.
Never fill the battery above the fill line. Over filling above
the upper level line may cause electrolyte to overflow,
resulting in corrosion to the engine or nearby parts.
Immediately wash off any spilled electrolyte following the
procedure above.
BATTERY CHARGING
Units equipped with electric start have a small charging
coil built into the engine flywheel assembly for recharging
the starting battery. This flywheel charger generates a
small AC current that passes through a rectifier/regulator
assembly on the engine to produce a DC charging current.
This circuit is not designed to be used as a battery charging
circuit to recharge dead batteries.
CAUTION: EQUIPMENT DAMAGE
Always connect the positive cable first and the negative
cable last. When disconnecting, remove the negative cable
first and the positive cable 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 engine starter; the
negative (-) battery terminal is connected to the negative
BATTERY INSTALLATION
CAUTION
In the following battery installation procedure, check to
be sure the control panel remains ‘off’. 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 (size), will
increase cold weather starting performance. Gel batteries
should not be used with the battery tender installed in the
generator enclosure.
Votlage BCI Group MIN. CCA Rating
12 26 500
Installation and servicing of batteries must be performed
or supervised only by persons knowledgeable of batteries
and the required precautions. Keep unauthorized persons
away from batteries. When installing or replacing batteries,
use the proper group/size starting battery. The battery
should be a maintenance free lead acid design. Deep cycle
batteries will not work for this application.
CAUTION: PERSONAL DANGER
NEVER dispose of a battery in a fire. The battery is capable
of exploding.
DO NOT open or mutilate the battery. Released electrolyte
is known to be harmful to the skin and eyes and to be
very toxic.
These generator sets are all NEGATIVE ground. Be very
careful not to connect the battery in reverse polarity, as
this may short circuit the battery charging system on the
engine.
CAUTION
A battery presents a risk of electrical shock and high
short circuit current. The following precautions must be
observed when working with batteries:
1. Remove watches, rings, and other metal objects.
2. Use tools with insulated handles.
3. Check both the battery cable ends and the battery posts
to be sure they are free of corrosion.
4. Always connect the battery positive cable first and then
connect the battery negative cable. When removing the
battery cables from the battery, reverse the procedure
and disconnect the negative cable first and then the
positive cable.
5. Be sure all connections are tight and coat the terminals
and cable ends with dielectric grease.

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60706-259/A
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 discharge
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 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 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 storage mode (float charge). This charger is
mounted on the generator set which is located behind an
access cover in the rear of the unit.
The battery tender receptacle is to be powered by a GFCI
circuit and installed in accordance with the United States
National Electric Code. 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. Terminal
block connections have been provided in the customer
connection area of the engine-generator set. See following
diagram.
CUSTOMER CONNECTION AREA
TORQUE SCREWS TO
9.6 IN LBS. 14 TO 16
AWG COPPER WITH LUGS
CUSTOMER TO CONNECT TO
120 VOLT UTILITY LINE TO
POWER BATTERY TENDER
AND OPTIONAL ENGINE
HEATER
CUSTOMER GENERATOR
OUTPUT CONNECTIONS TO
EMERGENCY TRANSFER
SWITCH
TORQUE TO 16 IN LBS
RATED FOR 4 TO 10 AWG
COPPER - 85 AMPS
EMERGENCY STOP CONTACTS PROVIDED
FOR REMOTE EMERGENCY STOP SWITCH
UNIT WILL NOT RUN IF JUMPER IS REMOVED
2-WIRE CONNECTOR
THIS IS PLUGGED INTO
MATCHING CONNECTOR
BELOW THE CONTROL MODULE
CUSTOMER DC CONNECTIONS
TO 2-WIRE AUTOMATIC
TRANSFER SWITCH 1 & 22/23
CUSTOMER EARTH
GROUND CONNECTED HERE
AS REQUIRED
ENGINE CONTROL
MODULE ASSEMBLY
BATTERY
TENDER
START & FUEL
RELAYS
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
and maintain a fully charged battery.

13 60706-259/A
NOTICE:
CLASS 1 WIRING METHODS ARE TO BE USED FOR ALL
FIELD WIRING CONNECTIONS TO TERMINAL OF A CLASS
2 CIRCUIT.
WARNING
A mainline circuit breaker has been provided inside the
generator housing. During all wiring installation, make
sure the breaker is in the off position and the generator
operators switch is in the off position.
Note: This symbol always indicates ground where
used.
GENERATOR CONNECTIONS
WIRE TEMPERATURE RATING
CU Connector Quantity per Lug
75° C #8 AWG 2
90° C #4 AWG 1
The previous table shows the minimum conductor sizes
between the generator and the ATS, based on wire type
and temperature rating. Wire has been derated for 40° C
ambient temperatures.
To gain access to the customer connections, remove
the end door panel opposite the muffler. All AC and DC
connections to the ATS, 120 Volt power connection for
battery charger, and battery installation are made behind
this panel. See drawings for generator set and pad layout
featured within this manual.
Two hot leads, one neutral, and one ground lead are
required between the generator and the ATS or distribution
panel. The two power leads from the generator are marked
G1 and G3. Next install the two leads, one neutral, and one
ground from the generator set to the ATS or distribution
panel.
In addition to the power leads, run wiring through the
AC conduit to supply 120V to the 15 amp GFCI customer
connection terminals shown in the diagram on page 12.
This circuit will be used to power the battery charger,
optional block heater, and optional battery heater.
The last four wires you will install are the DC control leads
(14 or 16 gauge) for the start circuit in the ATS. These
connections will be discussed later in more detail.
WINCO UL ATS (ASCO 185)
See the ASCO installation manual for additional details on
proper wiring of the Automatic Transfer Switch.
The standby generator terminals in the ATS are marked
“ALTERNATE L2 & L6”. The “hot” leads G1 and G3 from
the generator are connected to the terminals L2 & L6.
The normal line power terminals in the ATS are marked
“PREFERRED - L1 & L5”. The “hot” line power leads are L1
and L3 from the utility power supply. They are connected to
AC ELECTRICAL CONNECTIONS
terminals L1 and L5.
The load terminals in the ATS are marked “LOAD - L3 & L7”.
The leads to the load distribution panel are connected to
terminals L3 & L7.The neutral leads from all three locations
are connected to the isolated terminal lugs on the sidewall
of the cabinet. This terminal block is labeled “NEUTRAL” and
the terminal lugs are mounted on red isolation standoffs.
The ground leads from all locations are connected to the
grounded terminal lugs also located on the side wall. This
set of terminals is labeled “GROUND”.
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 circuit
breaker (or fuse) in the entrance (or sub-panel) protecting
the contactor switch. All wires should be installed in
rigid or flexible conduit. Because of the many different
types of service, feeder, and distribution equipment, no
specific wiring instructions can be provided. It is, however,
recommended that 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 ATS control and safety
systems will eliminate all paths for feedback. Check with
your local electrical inspector on applicable local, state and
federal codes.
WARNING
A service disconnect must be installed in front of the
ATS panel if the ATS is not service entrance rated. This
will allow you to test the generator under load. Should
you ever have to work on the switch, you will be able
to disconnect the power and work on the switch cold
without having the power company pull your meter.
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 watt-
hour meter and 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.

14
60706-259/A
CAUTION
Never run the AC and DC wiring in the same conduit.
ASCO 185 UL SWITCH
Your DC connection points in the ASCO 185 UL ATS are on
the terminal block on the bottom of the controller in the
lower left hand corner of the ATS panel. The terminal block
(TB7) is numbered 1 through 9. These terminals will accept
# 22 - # 14 AWG stranded wire. It is recommended that you
use # 16 AWG for distances up to 200 feet. You need to run
two (2) wires from the engine generator set to the transfer
switch. You will be using terminals 4 and 5, wire Start # 23
will connect to terminal # 5 and wire Battery Negative #
1 will connect to terminal # 4. See the following table and
illustration.
Wire # Purpose
#23 Start
#1 Battery negative
DC ELECTRICAL INTERCONNECTION

15 60706-259/A
INITIAL START UP
WARNING
DO NOT jump start these engine generator sets. Starting
these units on a low battery of jump starting them will
cause damage to the engine control module.
Use the following checklist to verify correct installation
before starting the engine:
□Engine oil.* Check level & fill as required with proper
grade/quantity.
□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 installed
(may be required for NG).
□LP/NG pressure OK. 4-6 oz. (7-11 in. WC).
□Battery connections clean and tight.
□Battery fully charged.
□All AC and DC wiring installed and properly
protected.
*Refer to engine owners manual for proper levels and
types. After completing the above checklist, the engine
generator set is ready for the initial start-up test.
START UP PROCEDURE
ENGINE-GENERATOR SET ONLY
The engine control module (ECM) is manufactured by Deep
Sea Electronics. Model 3110 is used on this generator set.
See following picture and look for more information stated
within this manual.
MANUAL OPERATION
Press and release the red Stop/Reset button. Then press
and release the green Start Engine button. The engine-
generator will crank and start automatically. If the engine
fails to start, reference the fault codes to correct the problem
before proceeding.
10 REV B
60706-229
DC ELECTRICAL INTERCONNECTION
CAUTION:
Never run the AC and DC wiring on the same conduit.
ASCO 185 UL SWITCH
Your DC connection points in the ASCO 185 UL ATS are on the
terminal block on the bottom of the controller in the lower left hand
corner of the ATS panel. The terminal block (TB7) is numbered 1
through 9. These terminals will accept # 22 - # 14 AWG stranded wire.
It is recommended that you use # 16 AWG for distances up to 200
feet. You need to run two (2) wires from the engine generator set to the
transfer switch. You will be using terminals 4 and 5, wire Start # 23 will
connect to terminal # 5 and wire Battery Negative # 1 will connect to
terminal # 4. See the following table and illustration.
Wire # Purpose Recommended Color
#23 Start Black
#1 Battery negative White
INITIAL START UP
WARNING:
DO NOT jump start these engine generator sets. Starting these units
on a low battery of jump starting them will cause damage to the engine
control module.
Use the following checklist to verify correct installation before starting
the engine:
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grade/quantity.
 Ƒ8QLWPRXQWLQJEDVHSURSHUO\EROWHGGRZQ
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required for NG).
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* Refer to engine owners manual for proper levels and types.
After completing the above checklist, the engine generator set is ready
for the initial start-up test.
START UP PROCEDURE
ENGINE-GENERATOR SET ONLY
The engine control module (ECM) is manufactured by Deep Sea
Electronics. Model 3110 is used on this generator set.
See following picture and look for more information stated within this
manual.
MANUAL OPERATION
Press and release the red Stop/Reset button. Then press and release
the green Start Engine button. The engine-generator will crank and
start automatically. If the engine fails to start, reference the fault codes
to correct the problem before proceeding.
generator under load. Should you ever have to work on the switch,
you will be able to disconnect the power and work on the switch cold
without having the power company pull your meter.
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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 watt-hour meter and the service entrance, providing
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capability.
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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.
STOP/RESET (red button) - This button places
the module into its Stop/Reset mode. This
will clear any alarm conditions for which the
triggering criteria have been removed. The
fuel supply de-energizes and the engine comes
to a standstill. Should a remote start signal be
present while operating in this mode, a remote
start WILL NOT occur.
AUTO (white button) - This button places the
module into its Automatic mode. This mode
allows the module to control the function of
the generator automatically. The module will
monitor the remote start input and once a start
request is made, the set will be automatically
started and placed on load. The module will
then wait until the next start event.
START (green button) - Pressing this button
from STOP/RESET will start the engine and run
the load.
PAGE - Pressing this button scrolls the display to
show the various instruments.
With the engine running soothly, check the no load voltage
and frequency wire #1 and #4 on the generator terminal
block in the ATS (L2 and L6 in the ASCO ATS). The voltage
should be 240 Volts plus or minus nominal. The frequency
should be between 61.5 to 62 Hertz (Hz). The Voltage
should also be checked between the hot terminals (L2 and
L6) and the neutral connection. The Voltage should be
about one half of the line to line Voltage. See the following
picture to frequency adjustments.
NOTICE
If for any reason during the check out procedures the
Voltage and frequency are not correct, press the red Stop/
Reset button and correct the trouble before proceeding.
After verifying the Voltage and frequency are correct,
press the Stop/Reset button. This will shut off the engine
immediately.
Bend this tab to change the engine speed (frequency).
Stretching the spring increases the frequency (increases
engine speed). Relaxing spring decreases the frequency
(decreases engine speed). Different units will vary.

16
60706-259/A
TRANSFER SWITCH & ENGINE-GENERATOR
Automatic (remote) Operation
This procedure checks the electrical operation of the
automatic transfer switch. If the actual operation does not
follow procedure, consult the trouble-shooting section in
the transfer switch manual.
1. Turn on the preferred source (utility) circuit breaker.
The Utility Acceptable Light should now come on, as
well as the Load on Utility Light. If those lights fail to
come on, recheck your incoming power to ensure you
have 240 Volts nominal. If not, troubleshoot your utility
source before continuing.
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 alternate source (generator) circuit
breaker.
WARNING: PERSONAL INJURY HAZARD
Install front cover in transfer switch before operation.
An electrical system fault could cause a flash and severe
personal injury.
The digital controller provides sensing, timing, and control
functions for the ATS. This micro-processor-based controller
includes built-in control buttons and status lights for control
of the ATS and the generator.
PUSH BUTTONS
On the front control display are the three push buttons that
control the operation of the generator and the ATS.
CAUTION
Before using the transfer test button, be sure that
conditions are safe for running the generator and for load
tester.
TRANSFER TEST
Use this button to test the system. This operation starts the
generator and transfers the load. Be sure that conditions
are safe to do this operation.
BYPASS TIME DELAY
Use this button to cancel the active time delay or exercise
period (stops the generator after cool-down).
SET ENGINE EXERCISER
Use this button to set the automatic exerciser.
INDICATOR LIGHTS
On the front control display are five lights that indicate the
status of the sources and the ATS.
UTILITY ACCEPTABLE
This light indicates that tehe utility voltage is acceptable for
connection to the loads.
GENERATOR ACCEPTABLE
This light indicates that the generator voltage and
frequency is acceptable for connection to the load.
LOAD ON UTILITY
This light indicates that the generator voltage is acceptable
for connection to the load.
AUTOMATIC GENERATOR EXERCISER
This light indicates the status of the generator exerciser:
• Blinks during the exercise period (including cool down)
• Stays on when the exerciser has been set.
• Is off when the exerciser has not been set.
GENERATOR STARTING CONTACTS
Disconnect the generator battery. Connect the generator
starting wires #1 (battery -) to terminal 4; wire #23 (start) to
terminal 5 of the TB7 terminal block. This is removable for
convenient connections.
GENERATOR EXERCISER CIRCUIT
The automatic generator exerciser is configured to
automatically exercise the generator for 20 minutes once
every week.
In order to set and test the exercise circuit the AUTO button
on the generator control panel must be on.
EXERCISE WITH OR WITHOUT LOAD
The transfer switch can be set up to exercise the generator
with or without a load transfer. Normally, WINCO
generators exercise without a load transfer. This is because

17 60706-259/A
you may prefer not to have a momentary interruption of
power. Turn the exerciser dip switch on. Then set the “with
load” or “without load”. See the following table.
Function Factory
Setting
Dip
Switch
Dip
Actuator
Actuator
Position
Clock
Battery
Off S2 10 On (up)
Off (down)
Exerciser Off S1 7On (up)
Off (down)
With load
or without
load
Without
Load
S1 8With (up)
Without (down)
SETTING THE EXERCISER
Press and hold (5 seconds) the Set Engine Exerciser button.
The exercise period occurs immediately and at the same
time weekly thereafter. The status light below the button
blinks during the exercise period (including cool down). The
light stays on to indicate that the exerciser has been set. If
the light is off, the exerciser has not been set.
CANCELING AN ACTIVE EXERCISE PERIOD
Press the Bypass Time Delay button to stop an exercising
generator. If exercise with load is set, the ATS retransfers the
load to the utility, then stops the generator after cooldown.
WARNING
With a total power failure (utility power fails and the
generator fails to start and run), the exerciser must be
resest after the power is restored.
The ASCO 185 has settings that can be changed for various
applications. The dipswitch options are explained in the
ASCO 185 Operator’s Manual.
This completes your installation and unit testing. ALWAYS
leave the system in automatic mode unless servicing the
unit. For automatic operation, the auto mode icon must be
displayed on the engine control module display.

18
60706-259/A

19 60706-259/A
DSE 3110
FRONT PANEL CONFIGURATION
ACCEPT DECREASE VALUE/
BUTTON NEXT ITEM BUTTON
NEXT PAGE INCREASE VALUE/
BUTTON NEXT ITEM BUTTON
This configuration mode allows the operator limited
customizing of the way the module operates. Use the
module’s navigation buttons to traverse the menu and
make value changes to the parameters.
ACCESSING THE FRONT PANEL
Press and simultaneously. This display shows the
configuration icon: The first parameter is also displayed.
EDITING A PARAMETER
1. Press to select the required ‘page’ as detailed below.
2. Press to select the next parameter or to select
the previous parameter within the current page.
3. When viewing the parameter to be changed, press .
The value begins to flash.
4. Press or to adjust the value to the requested
setting.
5. Press to save the current value. The value stops
flashing.
6. Press and hold the button to exit the editor, the is
removed from the display.
NOTE:
Values representing pressure will be displayed in Bar.
Values representing temperature are displayed in degrees
Celsius.
When adjusting values in the front panel editor, a “press
and hold” of the increment button will cover the full
range of the item being adjusted (min to max) in under 20
seconds.
When the editor is visible, it will exit after 5 minutes of
inactivity for security.
DSE 3110 FAULT CODES
Auxiliary inputs can be user configured and will
display he message as written by the user.
Fail to Start. The engine has not fired after the
preset number of start attempts.
Fail to Stop. The module has detected a condition
that indicates that the engine is running when it
has been instructed to stop.
NOTE:- ‘Fail to Stop’ could indicate a faulty oil
pressure sensor - If engine is at rest, check oil
sensor wiring and configuration.
Low Oil Pressure. The module detects that the
engine oil pressure has fallen below the low oil
pressure pre-alarm setting level after the Safety
On timer has expired.
Engine High Oil Temperature. The module
detects that the engine oil temperature has
exceeded the high engine temperature pre-alarm
setting level after the Safety On timer has expired.
Underspeed - The engine speed has fallen below
the underspeed pre-alarm setting.
Overspeed - The engine speed has risen above
the overspeed pre-alarm setting.
Battery Under/Over Voltage. The DC supply has
fallen bleow or risen above the low/high Volts
setting level.
Generator Under Voltage - The generator output
voltage has fallen below the pre-set pre-alarm
setting level.
Generator Over Voltage - The generator output
voltage has risen above the pre-set pre-alarm
setting after the Safety On timer has expired.
Generator Under Frequency - The generator
frequency has fallen below the pre-set pre-alarm
setting after the Safety On timer has expired.
Generator Over Frequency - The generator
output frequency has risen above the pre-set pre-
alarm setting

20
60706-259/A
DSE 3110 ENGINE CONTROL
PROTECTIONS
When an alarm is present, the Common alarm LED (if
configured) will illuminate. The LCD display will show an icon
to indicate the failure.
WARNINGS
Warnings are non-critical alarm conditions and do not affect
the operation of the generator system; they serve to draw the
operator’s attention to an undesirable condition. Warning
alarms are self-resetting when the fault condition is removed.
The icon will appear steady in the display.
SHUTDOWNS
Shutdowns are critical alarm conditions that stop the
engine and draw the operator’s attention to an undesirable
condition. Shutdown alarms are latching. The fault must be
removed and the Stop/Reset button pressed to reset the
module. The icon will appear flashing in the display.
MODULE DISPLAY
TIMER ICON
When the module is controlling the engine (starting and
stopping), an animated timer icon will be displayed in the
icon area to indicate that a timer is active. For example,
cranking time, crank test, etc.
STOPPED ICON
When there are no alarms present, an icon will be displayed
to indicate the engine is stopped and what mode the unit is
in Stop mode, Auto mode, or Manual mode.
RUNNING ICON
When there are no alarms present, an animated icon is
displayed to indicate the engine is running.
USB CONNECTION
When a USB connection is made to the module, the USB
icon is displayed.
MEMORY CORRUPTION
If either the config file or engine file becomes corrupted, the
unit will display the memory corruption icon.