Briggs & Stratton 100 AMP AUTOMATIC TRANSFER SWITCH Le manuel du propriétaire

Taper
Le manuel du propriétaire

Ce manuel convient également à

100/200 Amp Automatic
Transfer Switch
with Service Disconnect and
Symphony™ II Power Management System
Installation & Operator’s Manual
Questions?
Help is just a moment away!
Call: Transfer Switch Helpline
800-743-4115 M-F 8-5 CT
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Thank you for your purchase of this Briggs & Stratton® Power Products automatic transfer switch. This product is designed
for use with specific home standby generators and may not function with generators or remote modules produced by other
manufacturers. Seek a qualified electrical professional to determine applicability of this equipment to equipment manufactured
by others. When operated and maintained according to the instructions in this manual, your system will provide many years of
dependable service.
This manual contains safety information to make you aware of the hazards and risks associated with this system and how to
avoid them. We have made every effort to provide for a safe, streamlined and cost-effective installation. As 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 possible method or procedure. It is important that
you read and understand these instructions thoroughly before attempting to install or operate this equipment. Save these
original instructions for future reference.
This transfer switch and optional remote modules require professional installation before use. Refer to the Installation section
of this manual and the installation instructions packaged with the remote modules for instructions on installation procedures.
Only licensed electrical contractors should install transfer switches and remote modules. Installations must strictly comply with
all applicable federal, state and local codes, standards and regulations. Your installer should follow the instructions completely.
Where to Find Us
You never have to look far to find Briggs & Stratton support and service for your system. Consult your Yellow Pages. There
are many authorized service dealers who provide quality service. You can also contact Technical Service by phone at
800-743-4115 between 8:00 AM and 5:00 PM CT, or click on Find a Dealer at BRIGGSandSTRATTON.COM, which provides
a list of authorized dealers.
For Future Reference
Please fill out the information below and keep with your receipt to assist in unit identification for future purchase issues.
Transfer Switch Remote Module Remote Module Remote Module Remote Module
Model Number
Revision
Serial Number
Date Purchased
PRIORITY N/A
Remote Module Remote Module Remote Module Remote Module Remote Module Remote Module
Copyright © 2011. Briggs & Stratton Power Products Group, LLC
Milwaukee, WI, USA. All rights reserved.
Briggs & Stratton Power Products is a registered
trademark of Briggs & Stratton Corporation
Milwaukee, WI, USA
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Table of Contents
Important Safety Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Home Owner Responsibilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Owner Orientation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Installing Dealer/Contractor Responsibilities . . . . . . . . . . . . . . . . . . . . . . . . . 5
Equipment Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Delivery Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Mounting Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Power Wiring Interconnections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Supervisory Control Terminals. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
System Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Remote Module Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Testing the Automatic Transfer Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Te sting the Symphony™ II Power Management System . . . . . . . . . . . . . . 14
Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
Symphony™ II Power Monitor (Optional) . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Enclosure Door . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Status LED’s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Remote Module LED Status Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Maintenance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
Transfer Switch Schematic Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Transfer Switch Wiring Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Warranty. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
Product Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
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Important Safety Instructions
SAVE THESE INSTRUCTIONS - This manual contains
important instructions that should be followed during
installation and maintenance of the equipment.
Safety Symbols and Meanings
The safety alert symbol indicates a potential personal
injury hazard. A signal word (DANGER, WARNING, or
CAUTION) is used with the alert symbol to designate a
degree or level of hazard seriousness. A safety symbol
may be used to represent the type of hazard. The signal
word NOTICE is used to address practices not related to
personal injury.
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, could
result in minor or moderate injury.
NOTICE addresses practices not related to personal injury.
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 equipment unsafe.
Electrical Shock Read Manual
Save These Instructions
NOTICE Only qualified electricians should attempt
installation of this equipment, which must strictly comply
with applicable codes, standards and regulations.
WARNING Certain components in this product and
related accessories contain chemicals known to the
State of California to cause cancer, birth defects, or other
reproductive harm. Wash hands after handling.
WARNING Shock Hazard. Installing low and high
voltage wire in same conduit could result in death,
serious injury and/or property damage.
Do not run low and high voltage wire in the same conduit
unless the insulation rating on ALL wiring is rated for
600V. See NEC for more information.
WARNING Failure to properly ground equipment
could cause electrocution resulting in death or
serious injury.
Do not touch bare wires.
Do not use equipment 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 equipment.
In case of an accident caused by electrical shock,
immediately shut down all sources of electrical power
and contact local authorities. Avoid direct contact with
the victim.
WARNING Equipment contains high voltage that
could cause electrocution resulting in death or
serious injury.
Despite the safe design of the system, operating this
equipment imprudently, neglecting its maintenance or
being careless could result in death or serious injury.
NOTICE Improper treatment of equipment could damage
it and shorten its life.
Use equipment only for intended uses.
If you have questions about intended use, ask dealer or
contact Briggs & Stratton Power Products.
Do not expose equipment 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.
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Installation
We sincerely appreciate your patronage and have made
significant effort to provide for a safe, streamlined and cost-
effective installation. Because each installation is unique, it is
impossible to know of and advise the trade of all conceivable
procedures and methods by which installation might be
achieved. Neither could we know of possible hazards and/or
the results of each method or procedure.
For these reasons, only current licensed electrical
professionals should attempt system installations.
Installations must strictly comply with all applicable
codes, industry standards and regulations.
Your equipment 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 made 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.
Home Owner Responsibilities
To help you make informed choices and communicate
effectively with your installation contractor(s), read and
understand Owner Orientation before contracting or
starting your equipment installation.
To arrange for proper installation, contact the store at which
you purchased your equipment, your dealer, or your utility
power provider.
The equipment warranty is VOID unless the system is
installed by licensed electrical professionals.
Owner Orientation
The illustrations provided are for typical circumstances and
are meant to familiarize you with the installation options
available with your system.
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.
These factors will have a direct effect on the overall
price of your equipment installation.
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
equipment, as specified in this manual.
Installing Dealer/Contractor Responsibilities
• Read and observe the Important Safety Instructions.
• Read and follow the instructions given in this manual.
• The installer may need to provide appropriate rated
contactors based on loads to be controlled.
• Discuss with owner their load priority preferences to
decide on remote module priority settings.
• Check federal, state and local codes and authority
having jurisdiction, for questions on installation.
• Ensure generator is not overloaded with selected loads.
If you need more information about the transfer switch, call
800-743-4115, between 8:00 AM and 5:00 PM CT.
Equipment Description
The transfer switch is designed to transfer selected loads
found in normal residential installations to standby power in
the event of a primary power outage. 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 loads to the
appropriate source of power.
The Symphony™ II Power Management System is highly
flexible and utilizes individual high and low voltage modules
that can be mounted anywhere between the home’s main
distribution panel and the managed appliance. Designed
to communicate via your home’s existing power wiring, the
power demand and priority sequence of up to 8 appliance
loads are relayed back to the standby generator, effectively
preventing generator overload while expanding power range
and performance. The system is scalable and additional
relays can be added as a homeowner’s power management
needs change over time.
Only a licensed electrician should complete a home standby
installation. Service conduit and conductors can be wired
directly from the watt-hour meter to the transfer switch. A
separate service entrance disconnect and associated wiring
is not required when installed per applicable federal, state
and local codes, standards and regulations.
Major components of the transfer switch are a 2 pole utility
disconnect circuit breaker, a 2 pole generator disconnect
circuit breaker, a 2 pole double throw transfer switch, transfer
switch control circuit board, Symphony II power management
system control circuit board, fused utility terminals and
interconnecting wiring. All of these components are housed
in a NEMA 3R enclosure that is suitable for both indoor and
outdoor installations.
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.
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The transfer switch control board has active circuits sensing
utility and generator voltages. It creates a signal for generator
start-up, switch transfer and retransfer when utility is
restored. The transfer switch control board provides status
LED’s to indicate the power source available.
The Symphony™ II power management system control
board contains a test button, a status LED and eight priority
load LED’s. It creates and sends signals to optional remote
modules, instructing them when to add (turn power on) or
shed (turn power off) the managed load.
The Symphony II system power line carrier technology has
been rigorously tested and has proven to be very robust.
However, certain types of devices and appliances in the
home generate ‘noise’ on the power line. Such devices
may include non-residential fluorescent ballasts, dimmers,
speed controls (lighting and fans), bathroom equipment,
kitchen equipment, power tools, phone chargers, and power
supplies. These types of devices have the greatest impact on
power line communication when located close to a remote
module.
AM broadcast radio, X10, power line carrier (PLC),
uninterrupted power supply (UPS), transient voltage surge
suppression (TVSS) systems, and power filter technology
may also cause the Symphony II system to not operate as
intended. They may cause interference with the Symphony II
system during standby power operation.
If it is determined that power line noise is causing a
communication issue with the Symphony II system, the
following changes may remedy the issue.
• Have commercial (non consumer use) fluorescent
ballasts replaced with residential use ballasts.
• Have a EMI/RFI filter installed in series and near the
problematic device.
• Have the remote module rewired to the opposite power
line (Line 1 or Line 2) from that of the problematic
device.
Refer to Troubleshooting section.
The optional 50 Amp remote module is designed for control
by the Symphony II system to add or shed appliance loads
connected to it based on a user-defined priority setting.
This remote module manages 120VAC or 240VAC, single
or double pole loads up to 50 amperes. The remote
module’s relay state is normally open. Its components are
housed in a NEMA 4 enclosure suitable for indoor and
outdoor installations.
The optional low voltage remote module is designed for
control by the Symphony II system to add or shed an air
conditioner, heat pump, or low voltage contactor controlled
loads based on a user-defined priority setting. The remote
module is housed in a NEMA 4 enclosure suitable for indoor
and outdoor installations.
Delivery Inspection
After opening the carton, carefully inspect the transfer
switch components for any damage that may have occurred
during shipment.
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 transfer switch
• Installation and operator’s manual
• Current transformers (2)
Optional components:
• 50 Amp module
• Low voltage module (single or dual models)
• Symphony™ II power monitor
To be supplied by installer:
• Connecting wire and conduit
• Various specialty tools/equipment
Mounting Guidelines
The transfer switch system circuitry is enclosed in a
NEMA Type 3R enclosure suitable for indoor/outdoor use.
Guidelines for mounting the enclosure include:
• Install enclosure on a firm, sturdy supporting structure.
• The transfer switch enclosure 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 enclosure and the mounting surface.
• NEVER install the switch or remote modules 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 automatic transfer switch installation is depicted on
the next page. Examples of remote module installations are
also shown. It is best if the transfer switch is mounted near
the utility meter, either inside or outside. The remote module
can be located anywhere between the main distribution panel
and its connected load, either inside or outside. The remote
module must be accessible for service. Discuss layout
suggestions/ changes with the owner before beginning the
system installation process.
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Main
Distribution
Panel
Transfer Switch
w/ Service
Disconnect
and Symphony
System
Hot Water
Heater
Air
Conditioner
Generator
Watt -
Hourmeter
Service Disconnect
Optional
50A Remote
Module
Optional
LV Remote
Module
Branch
Circuits
A/C
Thermostat
Example of 240VAC air
conditioner load controlled by
thermostat. Thermostat controlled
by low voltage remote module.
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G
N
Distribution Panel
L2
L1 IN
L2
L1 IN
G
N
N
L
Dual Low
Voltage Module
#1
#2
Thermostat
#1
#2
Low Voltage
Control Wiring
Example of two 240VAC air
conditioner loads controlled by
thermostat. Thermostats controlled
by dual low voltage remote module.
Example of 240VAC heat pump
load controlled by a dual low
voltage remote module.
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L2 IN
L2 OUT
L1 IN
L1 OUT
Neutral IN
Neutral OUT
L2 IN
L2 OUT
L1 IN
L1 OUT
Neutral IN
Neutral OUT
Example of two 120VAC loads
controlled by 50 Amp remote
module.
Example of one 240VAC load
controlled by 50 Amp remote
module.
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Power Wiring Interconnections
NOTICE Improper installation could cause damage to the
circuit boards and shorten their life. Installing circuit boards
in live circuits will damage the board and is not covered by
warranty. ALWAYS disconnect ALL sources of power prior
to servicing.
Remove all power prior to installing this equipment. Failure
to do so could cause internal damage to the board when
making electrical connections.
Turn generator to OFF position.
Turn off utility power to the standby generator and
transfer switch.
All wiring must be the proper gauge, properly supported
and protected by conduit. All wiring should be done per
applicable federal, state and local codes, standards and
regulations. Obey wire type and torque specifications printed
on the terminal blocks, neutral/ground connectors, and
installation instructions.
Use installer supplied 300VAC or greater copper wire of a
gauge that complies with the latest version of the National
Electric Code to complete the following connections between
utility power, transfer switch, generator, main distribution
panel, and optional remote modules. Apply the necessary
correction factors and wire size calculations.
1. Set generator’s circuit breaker to OFF (open) position.
2. Set generator’s system switch to OFF position.
3. Remove 15 Amp fuse from generator control panel.
4. Turn off utility power to the standby generator and
transfer switch.
5. Connect utility service to transfer switch’s utility
service disconnect circuit breaker terminals marked
“UTILITY CONNECTION”.
6. Connect utility service neutral to transfer switch
neutral terminal.
7. Connect main distribution panel feeder
conductors to transfer switch terminals marked
“LOAD CONNECTION”.
8. NOTICE Connect main distribution panel neutral to
transfer switch neutral terminal.
9. Connect main distribution panel ground to transfer
switch “GND” terminal.
Assure grounding electrode conductor is connected
and bonded per applicable federal, state and local
codes, standards and regulations.
10. Connect feeder conductors from transfer switch
breaker “GENERATOR CONNECTION” terminals to
generator circuit breaker LINE1 and LINE2 terminals.
Each conductor must pass through hole of current
transformer before making connection.
11. Plug current transformer leads into “CT1” and “CT2”
terminals (C) on transfer switch control board.
11
22
44
0
Neutral
Ground
To Transfer Switch
Line 1 Neutral
Ground
Line 2
Generator
Circuit
Breaker
C
WARNING Shock Hazard. Installing low and high
voltage wire in same conduit could result in death,
serious injury and/or property damage.
Do not run low and high voltage wire in the same conduit
unless the insulation rating on ALL wiring is rated for
600V. See NEC for more information.
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12. Connect conductor from transfer switch neutral terminal
to generator NEUTRAL terminal. Observe generator
control panel labeling for terminal identification.
13. Connect conductor from transfer switch “GND” terminal
to generator control panel “GROUND” terminal.
Assure generator equipment grounding conductor is
connected per applicable federal, state and local codes,
standards and regulations.
14. Using minimum #14 AWG conductors, connect
the transfer switch “UTILITY 240 VAC” terminals to
generator’s “240 VAC” terminals via two-pole connector
supplied with generator.
NOTICE TxRx and TxRx GND communication wiring
must be connected for the Synphony II System to operate
properly.
15. Using #18 AWG twisted pair copper conductors, no
greater than 200 ft. in length, 300 volt 75°C-90°C,
connect “T/R” and “GND” terminals on transfer switch
control board (B) to the generator’s control panel (A)
“TxRx” and “TxRx GND” terminals via ten pin connector
supplied with generator. Count down to the proper pin
location on the generator control board since visual
alignment with its decal can be misleading:
16. Install optional remote modules using the installation
instructions provided with each module. Set each
module to the agreed-upon priority setting.
17. Tighten all wire connections/fasteners to proper torque.
See label inside transfer switch enclosure or values
listed in remote module installation instructions for
proper torque values.
Supervisory Control Terminals
To avoid undesirable operation, we recommend loads be
managed only with low voltage or 50 Amp remote modules.
Do not use the transfer switch control board supervisory
control terminals (if present).
The illustration on the following page shows a completed
transfer switch installation. Your actual layout will vary.
Illustration callouts are:
A - From utility watt-hour meter
B - Current transformers
C - Transfer switch
D - Symphony™ II system control board
E - T/R and GND to Generator
F - Transfer switch control board
G - Neutral terminal
H - Neutral bus
J - Ground bus
K - Main distribution panel
L - UTILITY 240VAC to Generator
M - Two pin connector
N - Ten pin connector
P - Generator circuit breaker
R - Generator
S - Generator Neutral terminal
T - Generator Ground terminal
U - Transfer switch ground terminal
V - Load connection to distribution panel
W - Generator disconnect circuit breaker
X - Utility disconnect circuit breaker
Y - Utility connection
Z - Generator connection
A
B
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G
LINE1
LINE2
N
240
VAC
L1
L2
N
G
L1
L2
N
A D
E
F
G
T
S
H
U
M
Y
P
N
Z
K
W
J
V
R
C
B
L
X
Typical Transfer Switch shown
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System Setup
You must perform the following before operating the system:
• If generator is installed in an area regularly subjected
to temperatures below 40°F (4°C), select a 50 second
warm up time by moving jumper JP2 (C) installed
on transfer switch control board from ‘20’ position to
‘50’ position.
• Set the DPSW1 (A) and DPSW2 (B) dipswitches on
the transfer switch control board to match the kW
rating of the home standby generator, as described in
Setting Dipswitches.
Setting Dipswitches
Dipswitches are used to adjust control board operation
based on generator capacity. DPSW1 and DPSW2 switches
are set to correspond to total system kW rating. Dipswitch
DPSW1 (A) has units of 1,000 watts; Dipswitch DPSW2 (B)
has units of 10,000 watts.
The “On” position for the dipswitches is the switch number ON
THE TRANSFER SWITCH CONTROL BOARD, not on the
switch. For example, for an 18,000 watt generator, set DPSW2
dipswitch 10 to “On” position. Set DPSW1 dipswitch 8 to “On”
position. 10,000 plus 8000 equals 18,000 watts.
Set only one
switch to “On” position on DPSW1 and DPSW2.
NOTICE
Air density is less at high altitudes, resulting in
less available engine power. Specifically, engine power will
decrease 3.5% for each 1,000 feet (300 meters) above sea
level and 1% for each 10° F (5.6°C) above 77°F (25°C).
Generators located in these conditions must have the transfer
switch programmed appropriately for this power decrease.
Remote Module Setup
Each remote module features a priority selector (D) that
permits control of load-add or load-shed sequence. Priority
number is identified on clear protective barrier. Diagrams of
each module are shown in Status LED’s, later in this manual.
Priority 1 is the highest priority - devices set to this priority
will be the first load(s) added or last load(s) shed in a load
management situation. Priority 8 is the lowest priority.
Priority 9 and 10 are lockouts. Remote module(s) set to
these priorities will remain unpowered during any utility
power outage. An unlimited amount of remote modules can
be assigned to priority 9 or 10.
In consultation with the homeowner, set each remote
module’s priority selector switch to the desired priority
position. Assign a different priority to each remote module for
optimum operation.
NOTICE Use extreme caution when setting dipswitches or
damage to control board will result.
Use a pencil or small piece of plastic to set the dipswitch.
NEVER use a screwdriver or any type of metal object to
set dipswitches.
CA
B
D
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Testing the Automatic Transfer Switch
Turn the utility service disconnect circuit breaker feeding the
transfer switch contactor to the “OFF” position. The system’s
automatic sequence described below will initiate. To return to
utility power, turn the utility service disconnect circuit breaker
to the “ON” position.
Utility Fail
The generator 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. Use
jumper on transfer switch control board to select delay of
20 seconds or 50 seconds.
Transfer
Transfer from utility to generator supply occurs after voltage
is above set levels. The transfer switch control board LED
lights will change from green (utility) to red (generator)
and the Symphony II status light will change blink status
from Blink Blink_Pause_Blink Blink to Blink_Pause_Blink.
Minimum engine run time is 5 minutes after transfer.
Load Management
Five minutes after transfer to generator power, the remote
modules energize connected load(s) if generator power is
available, starting with the highest priority (1) through the
lowest priority (8). There is a 10 second delay between each
sequential activation.
The P1 through P8 LED’s (A) on the Symphony II control
board will illuminate to show loads being added.
Loads connected to remote modules set to priorities 9 and
10 remain off for the duration of a utility power outage.
Utility Pickup
Voltage pickup level is 80 percent of nominal voltage.
Retransfer
Retransfer from generator to utility power is approximately 10
seconds after utility voltage supply is above pickup level and
minimum run time is completed. All remote module(s) will
remain OFF for five minutes after the power transfer.
Engine Cool Down
Engine will run for 60 seconds after retransfer.
Te sting the Symphony™ II Power
Management System
The Symphony II system can be tested under either utility
power or generator power. Only one priority LED and
associated remote module will be powered (ON) at a time
during test mode.
• If TEST is not pressed again within 4 minutes AND
testing is being done under utility power, all managed
loads will resume operation under utility power after a
five minute delay.
• If TEST is not pressed again within 4 minutes AND
testing is being done under generator power, managed
loads will be added in the priority order set for
each load.
The test procedure in generator mode is as follows:
1. Turn the utility service disconnect circuit breaker
feeding the transfer switch contactor to the
“OFF” position.
2. After transfer to generator power, verify communication
LED is green on each remote module.
3. Press the TEST button (B) on the Symphony II system
control board. The Symphony II system control board
priority 1 LED (C) and load connected to remote
module set to priority 1 will turn ON.
WARNING Testing must only be performed by
qualified personnel. Equipment contains high
voltage that can cause personal injury or death.
Despite the safe design of the system, operating this
equipment imprudently, neglecting its maintenance or
being careless can cause possible injury or death.
LED
LED
LED
LED
LED
LED
LED
LED
LED
B
D
C
A
WARNING Testing must only be performed by
qualified personnel. Equipment contains high
voltage that can cause personal injury or death.
Despite the safe design of the system, operating this
equipment imprudently, neglecting its maintenance or
being careless can cause possible injury or death.
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4. Verify signal was received by remote module set to
priority one. Follow the test guidelines for each module:
50 Amp Module: Relay contacts will be closed. Relay
and communication LED’s will be green. Appliance/load
will have power.
Low Voltage Module (Single or Dual): Verify
continuity across low voltage control wiring contacts
(A). Communication LED will be green. Appliance/load
will have power.
5. Press the TEST button on the Symphony II system
control board. The priority 1 LED and load connected to
remote module set to priority 1 will turn OFF.
50 Amp Module: If off, relay LED status is off.
Communication LED status is green.
Low Voltage Module (Single or Dual): If off, low
voltage communication LED status is green. Continuity
will not be measured across low voltage contacts.
The priority 2 LED (D) and load connected to remote
module set to priority 2 will turn ON. Repeat step 4 for
each priority number being managed.
6. Each subsequent press of the TEST button cycles to
the next lower priority, through priority 8. After priority
8, press TEST button one time to exit test mode.
The system will reset and be ready to add loads in 5
minutes.
7. To return to utility power, turn the utility disconnect
circuit breaker to the “ON” position. All managed loads
will be turned off and turn back on after 5 minutes.
Closed Open
A
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Controls
Other than a Manual Override lever, there are no operator
controls because this is an automatic transfer switch. The
manual override is to be used only by licensed professionals.
Information on handle use can be obtained by calling
Technical Service at 800-743-4115.
Operation
To select automatic transfer operation, do the following:
1. In transfer switch, set utility disconnect circuit breaker to
“ON” position.
2. In transfer switch, set generator disconnect circuit
breaker to “ON” position.
3. Install 15 Amp fuse in generator’s control panel.
4. Set generator’s circuit breaker to “ON” position.
5. Set generator’s system switch to “AUTO” position.
The system will now be in automatic operation mode.
When the generator is providing power to the transfer switch,
the transfer switch control board is constantly monitoring
generator power and communicating with the Symphony II
system control board.
The Symphony II system will control up to 8 priorities, with
priority 9 and 10 as lockouts. When total generator load
meets a preset value, the Symphony II system control board
will start shedding loads, starting with the lowest priority
(highest number) load. The Symphony II system will add or
shed managed loads based on the generator output capacity
and priority settings.
The Symphony II system waits 10 seconds between adding
or shedding each load to permit the system to stabilize. If
too much load demand is seen, the Symphony II system will
shed all managed loads quickly to prevent the generator
from overloading. Once the load demand has stabilized,
the Symphony II system will re-load the generator after a
5 minute delay, as described above.
There is a minimum five minute delay between the time
utility power is lost and priority 1 loads are energized by the
Symphony II system.
Be aware that managed heating element energy loads
(such as electric range burners, oven, or space heaters)
that were ON when utility power was lost, will be ON when
the generator begins supplying power. It is advised that the
owner check all such managed devices to ensure they are
turned OFF before generator power appears.
Managed devices like clothes dryers that require pressing a
START button will not resume operation unless the START
button is pressed after generator power begins.
Symphony™ II Power Monitor (Optional)
For your convenience, a Symphony II Power Monitor is
available, which provides a visual “on/off” status of each
managed appliance/load. A series of LED lights are ON
when an appliance has generator power and OFF when the
appliance is in a shed mode or does not have power. When
on generator power, the consumer can see which appliances
are being managed.
A decal is provided that can be labeled with the managed
appliances/loads and placed next to each priority LED.
The monitor is plugged into any convenient standard outlet
within the home and constantly receives system status via
the power line communication technology utilized by the
Symphony II Power Management System during generator
power.
Enclosure Door
To open transfer switch door, press the spring-load door lock
to the right and pull down on the door.
To close and latch door, push door closed against enclosure.
While in this position, push door upwards. This will cause
spring-load door lock to engage and latch door in place.
Enclosure door MUST be closed and latched at all times
except when system is being serviced.
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Status LED’s
Described below are the system’s LED indicators and the
conditions each LED color represents:
Transfer Switch Control Board
STATUS LED
RED (A) means GENERATOR power is present.
GREEN (B) means UTILITY power is present.
Symphony II System Control Board
STATUS LED (C)
Single Blink-Pause means unit is operating on
GENERATOR power.
Double Blink–Pause means unit is operating on
UTILITY power.
PRIORITY LIGHTS/LED’s (D & G)
When green LED is lit, indicates that optional remote module
set to that priority is supplying power to connected load
during generator power.
When not lit, indicates that optional remote module set to
that priority is set to OFF (being managed and Symphony II
System is not allowing power to the unit).
All lights/LED’s are OFF when utility power is present.
Symphony II Power Monitor (Optional)
POWER LIGHT (E)
When lit, indicates that monitor
detects outlet power.
When not lit, indicates that no
power is present at outlet.
COMM (communication
status) LIGHT (F)
When lit, indicates that unit
is receiving signals from the
Symphony II controller.
When not lit, indicates that
utility power is present or a
fault in Symphony II controller.
A
B
E
F
G
312113
LED
LED
LED
LED
LED
LED
LED
LED
LED
C
D
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Remote Module LED Status Indicators
Symphony II System does not communicate or manage
appliances/loads when utility power is present.
NOTICE When looking at LED’s, make sure you look
straight on and not at an angle.
Low Voltage (Single and Dual) Models
LED is for signal communication status (C).
Utility power present:
Normal State
- Orange LED - No communication and appliances/
loads cannot be managed by Symphony II System
• Problem State (see Troubleshooting)
- No LED - No power to low voltage control board;
verify correct wiring
- Green LED - Broken LED; replace low voltage
module
- Red LED - Fault in system; verify current
transformer connections, verify terminations on
orange and yellow communication wires
Generator power present:
Normal State
- Green LED - Signal communication detected and
appliances/loads can be managed after 5 minute
delay
• Problem State (see Troubleshooting)
- No LED - No power to low voltage control board;
verify correct wiring
- Orange LED - Signal communication not detected;
verify correct wiring
- Red LED - Fault in system; verify current
transformer connections, verify terminations on
orange and yellow communication wires
A
C
DE
B
A - Low Voltage Control Wiring Terminal Contacts
B - Priority Selector
C - Communication LED
D - Neutral Connection
E - Power/Line Connection
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50 Amp Model
LED’s are for signal communication status and relay position
status.
Utility power present:
Normal State
Relay Position Status LED (C)
- Green LED - Relay is closed; power available to
appliance/load
Signal Communication Status LED (D)
- Orange LED - No communication and appliances/
loads cannot be managed by Symphony II System
• Problem State (see Troubleshooting)
Relay Position Status LED (C)
- No LED - Power not available to managed
appliance/load; 5 minute delay has not expired,
verify correct wiring
- Red LED - 50 Amp relay contacts in incorrect state;
replace 50 Amp module
Signal Communication Status LED (D)
- No LED - No power to 50 Amp control board; verify
correct wiring
- Green LED - Broken LED; replace 50 Amp module
- Red LED - Fault in system; verify current
transformer connections, verify terminations on
orange and yellow communication wires
Generator power present:
Normal State
Relay Position Status LED (C)
- Green LED - Relay is closed; power available to
appliance/load
- No LED - Relay open, no power, Symphony II is
managing load
Signal Communication Status LED (D)
- Green LED - Signal communication detected and
appliances/loads are being managed after 5 minute
delay
• Problem State (see Troubleshooting)
Relay Position Status LED (C)
- No LED - Power not available to managed
appliance/load; 5 minute delay has not expired,
verify correct wiring
- Red LED - 50 Amp relay contacts in incorrect state;
replace 50 Amp module
Signal Communication Status LED (D)
- No LED - No power to 50 Amp control board; verify
correct wiring
- Orange LED - Signal communication not detected;
verify correct wiring
- Red LED - Fault in system; verify current
transformer connections, verify terminations on
orange and yellow communication wires
A
D
B
C
E
G
F
A - Priority Selector
B - 50 Amp Relay
C - Relay Status LED
D - Signal Communication LED
E - Neutral Connection
F - Load Connection
G - Power/Line Connection
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Maintenance
The transfer switch is designed to be maintenance free under
normal usage. However, inspection and maintenance checks
should be made on a regular basis. Maintenance will consist
mainly of keeping the transfer switch clean.
Visual inspections should be done at least three times each
year. Access to the transfer switch and optional remote
modules must not be obstructed. Keep 3 feet (92 cm)
clearance around transfer switch. Check for an accumulation
of dirt, moisture and/or corrosion on and around the
enclosure, loose parts/hardware, cracks and/or discoloration
to insulation, and damaged or discolored components.
Exercise the transfer switch and Symphony II system at
least once every three months as described in Testing the
Automatic Transfer Switch and in Testing the Symphony II
Power Management System unless a power outage occurs
and the entire home generator system has gone through
an automatic sequence. Allow generator to run for at least
10 minutes during exercise cycle.
Contact a licensed electrical professional to inspect and
clean the inside of the enclosure and other components of
your home generator system at least once a year.
When Calling for Assistance
You must have the Model Number and Serial Number from
each transfer switch or remote module ID label at hand if it is
necessary to contact a local service center regarding service
or repair. Obtain this information from the unit ID labels
located on or inside device. For convenience, record the
information on the inside front cover of this manual.
To contact Briggs & Stratton call 800-743-4115, between
8:00 AM and 5:00 PM CT.
Installation Inspection
Before placing the system into service, inspect the entire
installation carefully.
Complete the ”Installation Checklist” supplied with the
generator as you make the inspection. Ensure all items have
been filled-in and all signatures have been obtained. Instruct
the owner to mail the white copy to the address shown on
the checklist.
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