Winco PSS70000 User Manual
PACKAGE
STANDBY
SYSTEMS
PSS20000LS
PSS35000
PSS70000
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 5
Coolant 5
Battery Installation 6
TRANSFER SWITCH INSTALLATION 6
AC Electrical Connections 7
DC Electrical Connections 8
BLOCK HEATER WIRING 8
INITIAL START-UP 8
EXERCISOR CLOCK 9
TROUBLESHOOTING INFORMATION 10
LP/NG ADJUSTMENT 11
FUEL TYPE CONVERSION 11
CONTROL PANEL LAYOUT 13
AC WIRING - THREE PHASE
277/480 Volt 14
120/208 Volt 14
120/240 Volt 15
AC WIRING - SINGLE PHASE
120/240 Volt 15
VOLTAGE REGULATOR WIRING 16
DC SCHEMATIC - WIRING DIAGRAM
PSS35000/A 17
PSS70000 18
PSS35000/B & PSS20LS/A 19
PSS35000/C 20
PSS20LS/B 21
PSS35000/D 22
12 MONTH WARRANTY 24
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
2. FIRE HAZARD - Natural gas and L.P. present a hazard of
possible explosion and/or fire.
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
************************************************************
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.
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.
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 install-
ing 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 the
unit.
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.
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 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-prong grounded receptacles and
extension cords.
f. Be sure the unit is properly grounded to an external
ground rod driven into the earth.
60706-124
Page 1
a. Use only factory approved repair parts.
b. Do not work on this equipment when fatigued.
c. Never remove the protective guards, cover, or recep-
tacle panels while the engine is running.
d. Use extreme caution when working on electrical compo
nents. 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.
60541
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 systems 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.
a line side contactor and a generator side contactor. The
contactors are both electrically and mechanically interlocked. An
automatic taper battery trickle charger (40 MA max) and 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
PSS20000LS- The engine generator set consists of a Ford
Industrial, four cylinder, liquid cooled engine equipped to run on
L.P./N.G. fuel. The engine operates at 1800 rpm and frequency
regulation is maintained by the electronic governor within .5
cycles varation, from no load to rated load. The 20,000 watt
(20kW) 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 10 second start delay, 3 minute cool
down delay and cycle cranking, featuring 5 cycles of 12 seconds
on/12 seconds off.
PSS35000 - The engine generator set consists of a Ford Industrial, four cylinder, liquid cooled engine equipped to run on L.P./
N.G. fuel. The engine operates at 3600 rpm and frequency
regulation is maintained by the engine governor within .5 cycles
variation, no load to rated load. The 35,000 watt (35kW) 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 10 second start delay, 3 minute cool
down delay and cycle cranking, featuring 5 cycles of 12 seconds
on/12 seconds off.
CONTACTOR RATING
MODEL VOLTAGE LINE GENERATOR
PSS20000LS-3 120/240 225 100
PSS2000OLS-17 120/240 2 2 5 100
PSS20000LS-4 120/208 225 100
PSS20000LS-18 120/240 1 0 0 100
PSS35000-3 120/240 2 2 5 225
PSS35000-4 120/208 2 2 5 225
PSS35000-17 120/240 2 2 5 225
PSS35000-18 277/480 1 0 0 100
PSS70000-3 120/240 4 0 0 320
PSS70000-4 120/208 4 0 0 320
PSS70000-17 120/240 4 0 0 320
PSS70000-18 277/480 2 2 5 225
These Automatic Transfer Switchs (A.T.S.) are wall mount
switches designed for inside installation. The A.T.S. consists of
Page 260541 60706-124
PSS70000 - The engine generator set consists of a Ford
Industrial, eight cylinder, liquid cooled engine equipped to run
on L.P./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 70,000 watt
(70kW) 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 10 second start delay, 3 minute cool
down delay and cycle cranking, featuring 5 cycles of 12 seconds
on/12 seconds off.
** NOTICE **
These unit will automatically transfer if a power outage occurs
while running in an exercise mode.
SPECIFICATIONS
GENERATOR
MODEL WATTS VOLTS AMP H Z PH RPM
PSS20000LS 20,000 120/240 83 60 1 1800
PSS20000LS-4 20,000 120/208 69 60 3 1800
PSS20000LS-17 20,000 120/240 60 60 3 180 0
PSS20000LS-18 20,000 277/480 30 60 3 180 0
PSS35000 30,000 120/240 125 60 1 3600
PSS35000-4 35,000 120/208 121 60 3 3600
PSS35000-17 35,000 120/240 105 60 3 3600
PSS35000-18 35,000 277/480 53 60 3 3600
PSS70000 65,000 120/240 271 60 1 1800
PSS70000-4 70,000 120/208 243 60 3 1800
PSS70000-17 70,000 120/240 210 60 3 1800
PSS70000-18 70,000 277/480 105 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
PSS20000 365 365,00 13.7 3.3 117 295,200
PSS35000 540 540,000 28.5 6.7 243 612,000
PSS70000 940 940,000 48.9 11.5 417 1,005,222
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)
PSS20000 100 Gal 150 Gal 500 Gal* 1500 Gal*
PSS35000 160 Gal. 300 Gal. 1000 Gal.* 2000 Gal.*
PSS70000 500 Gal. 1000 Gal. 2500 Gal.* 9000 Gal.*
*Recommend liquid withdrawal at these temperatures.
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 PSS20000LS, P SS35000 and the
PSS70000 are shipped with oil, and a 50/50 mix of coolant. Be
sure to check all fluid levels before operating. See engine
manufacturer’s instruction manual for recommended oil requirements before initial starting.
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.
** CAUTION **
EQUIPMENT DAMAGE - Be sure to check the engine oil level
frequently as specified in the engine manual.
60706-124
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.
Page 3
60541
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 ****
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 convertor mounted on the unit will
handle both vaporization of the fuel and pressure reduction.
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 it’s 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 fuseable disconnect installed before the switch to protect the contacts.
ENGINE GENERATOR SET MOUNTING
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 subframe which is attacted 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.
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.
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.
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
Page 460541 60706-124
*************
***** 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*
PSS20000 1" pipe not recommended
PSS35000 1" pipe use a
PSS70000 2" pipe 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
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
134
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.
1 2 3 4
TWO (2) REGULATOR FUEL SYSTEM
Supply Primary Generator
Tank Regulator Se t
123
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
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 ran 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. Engine
generators sets equipped for liquid withdrawal will not run
properly when supplied with high pressure vapor fuel.
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.
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 additonal information on engine coolant
requirements see engine manufacturer’s maintenance instructions.
60706-124
Page 5
60541
INSTALLING THE BATTERY
**** CAUTION ****
EQUIPMENT DAMAGE - In the following battery installation
procedure, check to be sure the selector switch remains in the
“stop” position.
*************
***** 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!
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.
****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 control panel; the negative
(-) battery terminal is connected to the negative cable (ground)
from the engine generator assembly.
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.
A self tapering trickle charger, producing up to 40 MA is built into
the Automatic Transfer Switch panel to keep the battery in top
condition during standby periods. A small green light on the
Transfer Switch cover is illuminated to indicate the proper
operation of the charger. Since the charger has an automatic
charge regulation circuit, the charger has no control knob and
requires no adjustment.
** 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.
MOUNTING THE AUTOMATIC TRANSFER
SWITCH (A.T.S.)
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.
PSS20000LS - The Automatic Transfer Switch shipped with the
PSS20000LS system has a 225 Amp line side contactor (the 277/
480 volt transfer switch has 100 Amp contactor instead of the 225
Amp) installed to handle your normal power needs and a 100
Amp generator side contactor to handle the emergency generator
output. Before installing the A.T.S. you must first ensure that the
225 Amp line side contactor will be sufficient to handle your
complete service. See Figure 5. (i.e. the main line breaker must
not be larger than 225 Amps) If you have 250, 300 Amp or larger
system, 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.
PSS35000 - The Automatic Transfer Switch shipped with the
PSS35000 system has a 225 Amp line side contactor (the 277/
480 volt transfer switch has 100 Amp contactor instead of the
225 Amp) installed to handle your normal power needs and a
225 Amp generator side contactor to handle the emergency
generator output. Before installing the A.T.S. you must first
ensure that the 225 Amp line side contactor will be sufficient to
handle your complete service. See Figure 5. (i.e. the main line
breaker must not be larger than 225 Amps) If you have 250, 300
Amp or larger system, 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.
PSS70000 - The Automatic Transfer Switch shipped with the
PSS70000 system has a 400 Amp line side contactor (the 277/
480 volt transfer switch has 225 Amp contactor instead of the
400 Amp) installed to handle your normal power needs and a
400 Amp generator side contactor to handle the emergency
generator output. Before installing the A.T.S. you must first
ensure that the 400 Amp line side contactor will be sufficient to
handle your complete service. See Figure 5. (i.e. the main line
breaker must not be larger than 400 Amps). 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.
*************
***** 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.
Page 660541 60706-124
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