71009
Installation &
Operator’s Manual
Guide d'Installation
et d'Utilisation
Manual
de Instalación
y del Operario
Questions? Help is just a moment away!
Preguntas? La ayuda es justa
un momento lejos!
Vous avez des questions? Vous n'avez pas
besoin d'aller loin pour trouver de l'aide!
Call: Transfer Switch Helpline
Llamada:Línea Directa de
Interruptor de Transferencia
Appelez: Ligne Directe de
Commutateur de Transfert
1-800-743-4115 M-F 8-5 CT
Web: www.briggsandstratton.com
Models 071008, 071009, 071010 & 071011
Pa
rt No. 195740GS Rev. C (03/31/06)
100 AMP/200 AMP
Automatic Transfer Switch
2
TABLE OF CONTENTS
TABLE OF CONTENTS
TABLE OF CONTENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
IMPORTANT SAFETY INSTRUCTIONS . . . . . . . . . . . . . . 3
INTRODUCTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
For the Home Owner: . . . . . . . . . . . . . . . . . . . . . . . . 4
For the Installing Dealer/Contractor: . . . . . . . . . . . . . 4
Owner Orientation . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Installer Responsibilities . . . . . . . . . . . . . . . . . . . . . . . . 5
Equipment Description. . . . . . . . . . . . . . . . . . . . . . . . . 5
INSTALLATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Unpacking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Delivery Inspection . . . . . . . . . . . . . . . . . . . . . . . . 6
Shipment Contents . . . . . . . . . . . . . . . . . . . . . . . . 6
Mounting Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . 6-7
Power Wiring Interconnections . . . . . . . . . . . . . . . . . . 8
Supervisory Control Wiring. . . . . . . . . . . . . . . . . . . . . 8
System Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
SYSTEM OPERATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
TESTING THE AUTOMATIC TRANSFER SWITCH . . . 10
Automatic Sequence. . . . . . . . . . . . . . . . . . . . . . . . . . 10
Utility Fail. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Engine Warm-Up . . . . . . . . . . . . . . . . . . . . . . . . . 10
Transfer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Utility Pickup . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Retransfer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Engine Cool Down . . . . . . . . . . . . . . . . . . . . . . . 10
When Calling The Factory . . . . . . . . . . . . . . . . . . . . . 10
SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Model 071008 . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Model 071009 . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Model 071010 . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Model 071011 . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
NOTES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 & 20
DIAGRAMS, EXPLODED VIEWS, PARTS LISTS . . . . . 14-19
WARRANTY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Copyright © 2006 Briggs & Stratton Power Products Group, LLC. All rights reserved. No part of this material may be
reproduced or transmitted in any form by any means without the express written permission of Briggs & Stratton Power
Products Group, LLC.
3
IMPORTANT SAFETY
INSTRUCTIONS
This is the safety alert symbol. It is used to
alert you to potential personal injury
hazards. Obey all safety messages that follow
this symbol to avoid possible injury or death.
The safety alert symbol ( ) is used with a signal word
(DANGER, CAUTION,WARNING), a pictorial and/or a
safety message to alert you to hazards. DANGER indicates
a hazard which, if not avoided, will result in death or
serious injury. WARNING indicates a hazard which, if not
avoided, could result in death or serious injury.
CAUTION indicates a hazard which, if not avoided, might
result in minor or moderate injury. CAUTION, when
used without the alert symbol, indicates a situation that
could result in equipment damage. Follow safety messages
to avoid or reduce the risk of injury or death.
The manufacturer cannot possibly anticipate every possible
circumstance that might involve a hazard.The warnings in
this manual, and the tags and decals affixed to the unit are,
therefore, not all-inclusive. If you use a procedure, work
method or operating technique that the manufacturer does
not specifically recommend, you must satisfy yourself that it
is safe for you and others.You must also make sure that the
procedure, work method or operating technique that you
choose does not render the transfer switch unsafe.
• DO NOT touch bare wires or receptacles.
• DO NOT use transfer switch with worn, frayed, bare or
otherwise damaged wiring.
• DO NOT handle electrical cords while standing in water,
while barefoot, or while hands or feet are wet.
• If you must work around a unit while it is operating, stand on
an insulated dry surface to reduce shock hazard.
• DO NOT allow unqualified persons or children to operate or
service transfer switch.
• In case of an accident caused by electrical shock, immediately
shut down the source of electrical power and contact local
authorities. Avoid direct contact with the victim.
Failure to properly ground transfer switch can
result in electrocution.
WARNING
Only qualified electricians should attempt installation
of this system, which must strictly comply with
applicable codes, standards and regulations.
WARNING
• Use transfer switch only for intended uses.
• If you have questions about intended use, ask dealer or
contact Briggs and Stratton Power Products.
• DO NOT expose transfer switch to excessive moisture, dust,
dirt, or corrosive vapors.
• Remain alert at all times while working on this equipment.
NEVER work on the equipment when you are physically or
mentally fatigued.
• If connected devices overheat,turn them off and turn off their
circuit breaker/fuse.
Improper treatment of transfer switch can damage it
and shorten its life.
CAUTION
SAFETY INSTRUCTIONS
SAVE THESE INSTRUCTIONS
• Despite the safe design of the transfer switch, operating this
equipment imprudently, neglecting its maintenance or being
careless can cause possible injury or death.
Transfer Switch contains high voltage that can
cause personal injury or death.
WARNING
• Failure to follow above warning could cause personal injury,
damage and/or malfunction of equipment.
Low voltage wire cannot be installed in same
conduit as power voltage wiring.
WARNING
4
INTRODUCTION
INTRODUCTION
Thank you for your purchase of this Briggs & Stratton
Power Products Automatic Transfer Switch.This product is
intended for use with Briggs & Stratton Home Standby
Generator sets ONLY.This is an optional home standby
system which provides an alternate source of electric
power and to serve loads such as a gas furnace,
refrigeration and communication systems that, when
stopped during any power outage, could cause discomfort,
or the like.This product DOES NOT qualify for emergency
standby as defined by NFPA 70 (NEC).
Briggs and Stratton Power Products (BSPP) has made every
effort to provide for a safe, streamlined and cost-effective
installation. Each installation is unique, it is impossible to
know of and advise of all conceivable procedures and
methods by which installation might be achieved.We do
not know all possible hazards and/or the results of each
method or procedure. For these reasons,
Only licensed electrical contractors should
install transfer switches. Installations must
strictly comply with all applicable federal,
state and local codes, standards and
regulations.
Your BSPP Transfer Switch is supplied with this combined
“Installation and Operator’s Manual”.This is an important
document and should be retained by the owner after the
installation has been completed.
Every effort has been expended to make sure that the
information in this manual is both accurate and current.
However, the manufacturer reserves the right to change,
alter or otherwise improve the system at any time without
prior notice.
For the Home Owner
To help you make informed choices and communicate
effectively with your installation contractor(s),
Read and understand the
Owner Orientation Section of this manual
BEFORE
contracting or starting
your transfer switch installation.
To arrange for proper installation, contact the store at
which you purchased your BSPP Transfer Switch, your
dealer, or your utility power provider.
The Transfer Switch Warranty is V
OID unless the
system is installed by a licensed electrical professional.
For the Installing Dealer/Contractor
Check federal, state and local codes for questions on
installation.
If you need more information about the transfer switch,
call 1-800-743-4115, between 8:00 AM and 5:00 PM CT.
5
INTRODUCTION
Owner Orientation
The illustrations are for typical circumstances and are
meant to familiarize you with the installation options
available with your transfer switch.
Local codes, appearance, and distances are the factors that
must be considered when negotiating with an installation
professional.As the distance from the existing electrical
service increases, compensation in wiring materials must be
allowed for.This is necessary to comply with local codes
and overcome electrical voltage drops.
The factors mentioned above will have a direct
effect on the overall price of your transfer switch
installation.
NOTE:Your installer must check local codes AND obtain
permits before installing the system.
• Read and follow the instructions given in this manual.
• Follow a regular schedule in caring for and using your
transfer switch, as specified in the manual.
Installer Responsibilities
• Read and observe the safety rules.
• Read and follow the instructions given in this manual.
• Check federal, state and local codes.
• Ensure generator is not overloaded with selected loads.
Equipment Description
The transfer switches are intended to transfer the entire
load of normal residential installations when used with the
supervisory contacts provided.The load is connected either
to utility power (normal) or home standby power
(generator).The transfer switch monitors utility and
generator voltages and will automatically connect to the
appropriate source of power.
Major components of the transfer switch are a 2 pole
utility disconnect circuit breaker (models 071010 & 071011
only), a 2 pole double throw transfer switch, control circuit
board, fused utility terminals and interconnecting wiring.
The control board also has two inputs for current
transformers that sense generator current.
The transfer switch is solenoid-operated from utility or
generator inputs and contain suitable mechanical and
electrical interlock switches to eliminate the possibility of
connecting the utility service to the generator output. It
has ratings capable of switching full utility power into the
residence. In addition, a manual override lever is provided
for the transfer function.
The control circuit board has active circuits sensing utility
and generator voltages. It creates a signal for the generator
start-up, switch transfer and retransfer when utility is
restored.The control board also contains red and green
LED’s indicating the power sources available and two relay
operated contacts that provide supervisory control of
external loads.
6
INSTALLATION
Figure 1 — A Typical Transfer Switch Mounting for Models 071008 and 071009
Main
Breaker
Panel
Transfer
Switch
Hot
Water
Heater
Air
Conditioner
Contactor
Service Disconnect
Generator
Watt -
Hourmeter
Branch Circuits
— — — — — — Control Wiring
INSTALLATION
Unpacking
Delivery Inspection
After removing the carton, carefully inspect the transfer
switch components for any damage that may have occurred
during shipment.
IMPORTANT: If loss or damage is noted at time of
delivery, have the person(s) making delivery note all damage
on the freight bill and affix his signature under the
consignor's memo of loss or damage. If loss or damage is
noted after delivery, contact the carrier for claim
procedures. Missing or damaged parts are not warranted.
Shipment Contents
• Automatic Power Transfer Switch
• Installation and Operator’s Manual
Mounting Guidelines
The Automatic Transfer Switch is enclosed in a NEMA Type
3R enclosure suitable for indoor/outdoor use. Guidelines
for mounting the Automatic Transfer Switch include:
• Install the switch on a firm, sturdy supporting structure.
• The switch must be installed with minimum NEMA 3R
hardware for conduit connections.
• To prevent switch contact distortion, level and plumb the
enclosure.This can be done by placing washers between
the switch enclosure and the mounting surface.
• NEVER install the switch where any corrosive substance
might drip onto the enclosure.
• Protect the switch at all times against excessive moisture,
dust, dirt, lint, construction grit and corrosive vapors.
A typical installation of the Automatic Power Transfer Switch
for Models 071008 and 071009 is depicted in Figure 1.A
typical installation of the Automatic Power Transfer Switch
for Models 071010 and 071011 is depicted in Figure 2.An
alternative installation of the Automatic Power Transfer
Switch is depicted in Figure 3. It is best if it is mounted near
the utility meter, either inside or outside. Discuss layout
suggestions/changes with the owner before beginning the
system installation process.
Disconnect Switch
7
INSTALLATION
Figure 3 — An Alternate Transfer Switch Mounting
Main
Breaker
Panel
Transfer
Switch
Hot
Water
Heater
Air
Conditioner
Contactor
Disconnect Switch
Generator
Watt -
Hourmeter
Branch Circuits
— — — — — — Control Wiring
Emergency
Load Center
Figure 2 — A Typical Transfer Switch Mounting for Models 071010 and 071011
Main
Breaker
Panel
Transfer
Switch
w/Utility
Disconnect
Circuit
Breaker
Hot
Water
Heater
Air
Conditioner
Contactor
Service Disconnect
Generator
Watt -
Hourmeter
Branch Circuits
— — — — — — Control Wiring
Disconnect Switch
8
INSTALLATION
Power Wiring Interconnections
All wiring must be the proper size, properly supported and
protected by conduit.
Complete the following connections between the transfer
switch, main distribution panel, utility power and generator
(Figure 4, on next page).
1. Ensure utility power is turned OFF. Connect utility
power supply leads to transfer switch terminals
marked “UTILITY CONNECTION”.
2. Connect utility neutral to the transfer switch
“NEUTRAL” terminal.
3. Connect main distribution panel power leads to transfer
switch terminals marked “LOAD CONNECTION”.
4. Connect main distribution panel neutral lead to
transfer switch “NEUTRAL” terminal.
5. Connect generator power supply leads from the
generator’s control panel to transfer switch terminals
marked “GENERATOR CONNECTION”. Each lead
should pass through hole of current transformer
before connection to contactor.
6. Plug in current transformer leads into “CT1” and
“CT2” on control module.
7. Connect generator Neutral from the control panel to
the transfer switch “NEUTRAL” terminal.
8. Connect generator “GND” from the control panel to
the transfer switch “GND” terminal.
9. Connect main distribution panel “GND” to the
transfer switch “GND” terminal.
NOTE:Assure grounding electrode conductor is
connected and bonded per applicable federal, state and
local codes, standards and regulations.
10. Connect generator utility 240 VAC terminals to
transfer switch utility 240 VAC terminals.
11. Tighten all wire connections/fasteners to proper
torque. See inside transfer switch enclosure for proper
torque values.
Supervisory Control Wiring
1. Terminal strip on control module in transfer switch has
four connections for customer use.There are two sets
of “Normally Closed” contacts available.They will be
activated when generator power is required.These can
be used for supervisory control of large connected
loads on generator. Example: air conditioner, hot water
heater, etc.. Loads will be allowed to operate if there is
enough generator power available.
NOTE:There are two wireways provided to keep the
supervisory loads separated from each other.
2. Terminals “A-A” on control module are for air
conditioner contactor control. Contacts are connected
in series with the air conditioner contactor control
circuit (Figure 5).
3. Terminals “B-B” on control module are for installer
supplied contactor to control a large load. Example:
electric hot water heater. Contacts are connected in
series with the contactor control circuit (Figure 6).
4. Tighten all wire connections/fasteners to proper
torque. See inside transfer switch enclosure for proper
torque values.
• Failure to follow above warning could cause personal injury,
damage and/or malfunction of equipment.
Low voltage wire cannot be installed in same
conduit as power voltage wiring.
WARNING
Figure 5 — Terminals “A-A”
A
A
Air Conditioner
Contactor
Supply
Figure 6 — Terminals “B-B”
B
B
Contactor
Neutral
120 VAC
9
Figure 4 — A Typical Installation Diagram for Transfer Switch
Main
Main Distribution Panel
Ground Bus
Neutral
Bus
To Generator
Neutral
Terminal
To Utility Power
Supervisory
Contacts
Load
Connection
Ground
Terminal
Generator
Connection
Utility
Connection
INSTALLATION
System Setup
You must perform the following before operating the
system:
• Place the 2 position sliding switch on the control module
in the NG or LP position (Figure 7), whichever is
appropriate for your system.
• Place the 3 position sliding switch on the control module
to match the KW rating of the Home Standby Generator
set (Figure 7).
Figure 7 — Control Module
2 Position
Switch
3 Position
Switch
NOTE:Models 071010 and 071011 have a utility disconnect
circuit breaker built into the transfer switch enclosure.
Wireways
CT 1
CT 2
10
OPERATION
SYSTEM OPERATION
To select automatic transfer operation, do the following:
1A. For models 071008 & 071009, set service disconnect
switch that sends utility power to transfer switch
contactor to “On” position.
B. For models 071010 & 071011, set service disconnect
switch that sends utility power to transfer switch utility
disconnect circuit breaker to “On” position.
2. For models 071010 & 071011, set transfer switch
utility disconnect circuit breaker to “On” position.
3. Set generator’s main circuit breaker to its “On”
position.
4. Install 15 Amp fuse in control panel on generator.
5A. If generator is equipped with a system ON/OFF
switch, set switch to “On” position.
B. If generator is equipped with a AUTO/OFF/MANUAL
switch, set switch to “AUTO” position.
The system will now be in automatic operation mode.
When the generator is providing power to the transfer
switch, the controller is constantly monitoring generator
power. If the air conditioner is called to run, and there is
sufficient generator power available, the controller will
close contacts “A-A” to air conditioner contactor. Contacts
“B-B” will open before contacts A-A close. Should loads be
too great for generator, contacts A-A and/or B-B will open.
When air conditioning is not needed,A-A will open. If
enough power is available, B-B will close.
TESTING THE
AUTOMATIC TRANSFER
SWITCH
Turn the service disconnect feeding the transfer switch
contactor to the “Off” position.The Automatic Sequence
of the system will follow.To go back to utility power, turn
the service disconnect to the “On” position.
Automatic Sequence
Utility Fail
The Home Standby Generator set senses when utility
voltage is below 70 percent of nominal. Engine start
sequence is initiated after 6 second time delay.
Engine Warm-Up
Time delay to allow for engine warm-up before transfer
fixed at 20 seconds or 50 seconds with removal of jumper
on control board.
Transfer
Transfer from utility to standby supply occurs after standby
voltage is above set levels. Minimum engine run time is
5 minutes after transfer.
Utility Pickup
Voltage pickup level is 80 percent of nominal voltage.
Retransfer
Retransfer from standby to utility supply is approximately
10 seconds after utility voltage supply is above pickup level
and minimum run time is completed.
Engine Cool Down
Engine will run for 60 seconds after retransfer.
When Calling the Factory
Before contacting Briggs and Stratton Power Products
regarding service or repair of this transfer switch, obtain
the Model Number and Serial Number from the unit data
decal located on or inside the enclosure.
To contact Briggs and Stratton Power Products call
1-800-743-4115, between 8:00 AM and 5:00 PM CT.
11
SPECIFICATIONS
SPECIFICATIONS
UL® 1008 Listed Transfer Switch
Model 071008
Maximum Load Current . . . . . . . 100 Amps
Rated AC Voltage. . . . . . . . . . . . . 250 Volts
Poles . . . . . . . . . . . . . . . . . . . . . . 2
Frequency . . . . . . . . . . . . . . . . . . 50/60 Hz
Fault Current Rating . . . . . . . . . . 22,000 RMS Symmetrical
Amperes
Supervisory Contacts Rating . . . 1 Amp, 125 Volt AC, Pilot
Duty
Weight . . . . . . . . . . . . . . . . . . . . . 21 lbs.
Model 071009
Maximum Load Current . . . . . . . 200 Amps
Rated AC Voltage. . . . . . . . . . . . . 250 Volts
Poles . . . . . . . . . . . . . . . . . . . . . . 2
Frequency . . . . . . . . . . . . . . . . . . 50/60 Hz
Fault Current Rating . . . . . . . . . . 25,000 RMS Symmetrical
Amperes
Supervisory Contacts Rating . . . 1 Amp, 125 Volt AC, Pilot
Duty
Weight . . . . . . . . . . . . . . . . . . . . . 34 lbs.
Model 071010
Maximum Load Current . . . . . . . 100 Amps
Rated AC Voltage. . . . . . . . . . . . . 250 Volts
Poles . . . . . . . . . . . . . . . . . . . . . . 2
Frequency . . . . . . . . . . . . . . . . . . 50/60 Hz
Fault Current Rating . . . . . . . . . . 22,000 RMS Symmetrical
Amperes
Supervisory Contacts Rating . . . 1 Amp, 125 Volt AC, Pilot
Duty
Weight . . . . . . . . . . . . . . . . . . . . . 32 lbs.
Model 071011
Maximum Load Current . . . . . . . 200 Amps
Rated AC Voltage. . . . . . . . . . . . . 250 Volts
Poles . . . . . . . . . . . . . . . . . . . . . . 2
Frequency . . . . . . . . . . . . . . . . . . 50/60 Hz
Fault Current Rating . . . . . . . . . . 25,000 RMS Symmetrical
Amperes
Supervisory Contacts Rating . . . 1 Amp, 125 Volt AC, Pilot
Duty
Weight . . . . . . . . . . . . . . . . . . . . . 44 lbs.
12
TROUBLESHOOTING
TROUBLESHOOTING
Problem Cause Correction
Automatic transfer switch does
not transfer to generator
1. Generator breaker open.
2. Generator voltage not acceptable.
1. Reset generator circuit breaker.
2. Refer to generator manual.
Automatic transfer switch does
not transfer to utility
1. Utility disconnect breaker open
(Models 071010 & 071011 only).
2. Service disconnect breaker open.
3. Utility voltage not acceptable.
1. Reset utility disconnect breaker
(Models 071010 & 071011 only).
2. Reset service disconnect breaker.
3. Wait for utility voltage to return to
normal.
Generator is still running after
switch transfers to utility power
Engine cool down period. Engine should stop after 1 minute.
Supervised loads (air conditioner,
etc.) are not operating when
generator is supplying power
1. A-A or B-B contacts not operating
correctly.
2. Too much load on generator.
3. Current transformer not
connected.
4. Broken current transformer.
1. Check A-A or B-B contacts for
proper operation and/or check
control wiring to external load.
2. Decrease load to generator.
3. Contact local Briggs & Stratton
Power Products service center.
4. Contact local Briggs & Stratton
Power Products service center.
Generator is still running after
utility power is restored
1. Minimum engine run time has not
elapsed.
2. Fuse(s) in transfer switch is
defective.
1. Wait five minutes for transfer
switch to retransfer to utility
power.
2. Check fuse(s) and replace if
necessary.
13
NOTES
NOTES
14
SCHEMATIC AND WIRING DIAGRAM
SCHEMATIC AND WIRING DIAGRAM
MODELS 071008 & 071009
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