Simplicity 071057-02 Guide d'installation

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071057-01

Dual 200 Amp - Split 400 Amp

Automatic Transfer Switch

with Service Disconnect and

Symphony™ II Power Management System

Installation and Operators Manual

Questions?

Help is just a moment away!

Call: Transfer Switch Helpline

800-743-4115

Monday - Friday 8:00 AM - 5:00 PM Central Standard Time

80011076 Revision A

2 BRIGGSandSTRATTON.COM

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 /

Appliance

Name*

N/A Priority 1 Priority 2 Priority 3 Priority 4

Remote Module Remote Module Remote Module Remote Module Remote Module Remote Module

Priority 5 Priority 6 Priority 7 Priority 8 Lock Out Lock Out

*Appliance name and priority number should be listed in the spaces provided. Example: Electric Stove / 2

Table of Contents

Important Safety Instructions .............................4

Installation..........................................5

Owner Responsibilities ...............................................5

Owner Orientation ...................................................5

Installing Dealer/Contractor Responsibilities...............................5

Equipment Description ...............................................5

Delivery Inspection ..................................................6

Mounting Guidelines .................................................6

Power Wiring Interconnections ........................................11

Supervisory Control Terminals ........................................13

Interconnection Diagram.............................................13

System Setup .....................................................16

Remote Module Setup...............................................17

Testing the Automatic Transfer Switch ..................................17

Te sting the Symphony™ II Power ManagementSystem.....................18

Controls ...........................................19

Operation..........................................19

Enclosure Door ....................................................19

Symphony™ II Power Monitor (Optional) ................................20

Status LED’s ......................................................20

Remote Module LED Status Indicators ..................................21

Troubleshooting .....................................23

Transfer Switch Wiring Diagram .......................................24

Transfer Switch Schematic Diagram ....................................25

Product Specfications .................................26

4 BRIGGSandSTRATTON.COM

Save These Instructions

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.

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.

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.

Electrical Shock Read Manual

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 Shock hazard. Equipment contains high voltage

that could result in death, serious injury and/or

property damage.

• DO NOT operate this equipment imprudently or neglect its

maintenance.

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 Installation Manual and a

separate Operator’s Manual. These are important documents 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.

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 planning an installation. 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 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 buildings’s main distribution

panel and the managed appliance. Designed to communicate via

the buildings’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

flexible and additional relays can be added as an owner’s power

management needs change over time.

Only a licensed electrician should complete a 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 three, 2-pole

circuit breakers (one for generator disconnect and two for utility

disconnect), two, 2 pole double throw transfer switches, 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.

6 BRIGGSandSTRATTON.COM

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 remove (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 building 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 remove 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 remove 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 their

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 manuals

• 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(s) 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.

NOTICE Before drilling conduit entry holes, or any other holes,

cover and protect the switch and electronics to prevent dirt and

metal fragments from entering the mechanical and electrical

components. Failure to do so may result in damage or malfunction

of the switch.

NOTICE Use a vacuum to clean any dirt or metal shavings inside

the transfer switch. Do not use a blower or compressed air to clean

the inside of the transfer switch because debris may become lodged

in the electrical and mechanical components causing damage or

malfunction.

Optional

Remote

Module

A/C

Themostat

Service

Disconnect

Hot

Water

Heater

Air

Conditioner

Distribution

Panel #1

Distribution

Panel #2

Transfer

Switch

Appliance

Generator

Appliance

Optional

Remote

Module

Optional

Remote

Module

Optional

Remote

Module

Branch

Circuits

Branch

Circuits

200 Amp

Utility

200 Amp

Utility

400 Amp

Watt / Hourmeter

BUS

NOTICE: The load outputs of the transfer switch can supply one 200 Amp panel each. These outputs MUST NOT be combined, or used

individually to supply a panel larger than 200 Amps.

text text

200A 200A

Dual 200 Amp

Transfer

Switch

Correct

Dual 200 Amp

Transfer

Switch

text

400A

Dual 200 Amp

Transfer

Switch

text

400A

Incorrect

ncorrect!

8 BRIGGSandSTRATTON.COM

To thermostat and heat pump

or air handler, or air conditioner,

or furnace, or HVAC.

Example of 240VAC heat pump load

controlled by a dual low voltage

remote module.

To thermostat and heat pump

or air handler, or air conditioner,

or furnace, or HVAC.

Example of 240VAC air conditioner

load controlled by thermostat.

Thermostat controlled by low voltage

remote module.

{

Example of thermostat controlled by low voltage

remote module. Power can be supplied from a

120VAC and neutral source powered by

the generator.

Distribution Panel

L1 IN

Dual Low

Voltage Module

Low Voltage

Control Wiring

To thermostat and heat pump

or air handler, or air conditioner,

or furnace, or HVAC.

Example of two 240VAC air conditioner

loads controlled by thermostat.

Thermostats controlled by dual low

voltage remote module.

L2 IN

L2 OUT

L1 IN

L1 OUT

Neutral IN

Neutral OUT

Example of two 120VAC loads

controlled by 50Amp remote

module.

10 BRIGGSandSTRATTON.COM

L2 IN

L2 OUT

L1 IN

L1 OUT

Neutral IN

Neutral OUT

Distribution Panel

Example of one 240VAC load controlled

by 50Amp remote module using a 3-wire

installation procedure.

L2 IN

L2 OUT

L1 IN

L1 OUT

Neutral IN

Neutral OUT

Example of one 240VAC load controlled

by 50Amp remote module.

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. Approved

for copper and aluminum conductors.

Use installer supplied 600VAC or greater 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. Refer to the illustration on pages 14 and 15

for component location.

1. Set generator’s circuit breaker to OFF 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. Locate both 200 Amp utility line circuits coming from the

utility meter.

6. Connect one 200 Amp utility service line circuit to one

transfer switch service disconnect circuit breaker. The

terminal is marked “Utility Connection” (Z1). Repeat for

second 200 Amp utility service line circuit (Z2).

NOTICE: DO NOT wire 400 Amp utility line to this Automatic

Transfer Switch.

7. Connect utility service neutral to transfer switch

neutralterminal (H1 or H2).

8. Connect main distribution panel feeder from first distribution

panel conductors (R1) to transfer switch terminals marked

“LOADCONNECTION (V1)”.

9. Connect main distribution panel feeder from second

distribution panel conductors (R2) to transfer switch

terminals marked “LOADCONNECTION (V2)”.

NOTICE The two individual transfer switch terminals marked

“Load Connection” (V1 and V2) must be connected to separate

distribution panels.

NOTICE Connect the neutrals from both main distribution panels

(S1 and S2) to the transfer switch neutral terminal (H1 and H2).

10. Connect two main distribution panel grounds to transfer

switch “GND” terminal.

Assure grounding electrode conductor is connected and

bonded per applicable federal, state and local codes,

standards and regulations.

11. 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.

CT1

CT2

DPSW2

DPSW1

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.

240V

120V

Neutral

Ground Line 1 Neutral

Ground

Line 2

Generator

Circuit

Breaker

*Some generator models will have wires 22 and 33 going to neutral.

To Transfer Switch

12 BRIGGSandSTRATTON.COM

12. Plug current transformer leads into “CT1” and “CT2”

terminals (E1 and E2) on transfer switch control board.

13. Connect conductor from transfer switch neutral terminal (H1

or H2) to generator NEUTRAL terminal. Observe generator

control panel labeling for terminalidentification.

14. Connect conductor from transfer switch “GND” terminal

(U1 and U2) to generator control panel “GROUND” terminal.

Assure generator equipment grounding conductor (G) is

connected per applicable federal, state and local codes,

standards and regulations.

15. 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 (P).

16. Using #18 AWG twisted pair conductors, no greater than

200 ft. in length, 300 volt 75°C-90°C, connect “T/R” and

“GND” terminals (B) on transfer switch control board to the

generator’s control panel “TxRx” and “TxRx GND” terminals

via ten pin connector (A) supplied with generator. Count

down to the proper pin location on the generator control

board since visual alignment with its decal can bemisleading:

NOTICE TxRx and TxRx GND communication wiring must be

connected for the Symphony II System to operate properly.

17. Install optional remote modules using the installation

instructions provided with each module. Set each module to

the agreed-upon priority setting that was confirmed with

the customer.

18. 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 on

transfer switch control board (if present).

Interconnection Diagram

The illustration on the following pages shows a completed transfer

switch installation. Your actual layout may vary.

Illustration callouts are:

A1 - From Utility to First Service Panel

A2 - From Utility to Second Service Panel

B1 - Current Transformer

B2 - Current Transformer

C - Symphony™ II System Control Board

D - T/R and GND to Generator

E - CT Terminals

F - Transfer Switch Contactors

G - UTILITY 240VAC to Generator

H1 - Transfer Switch Neutral Terminal

H2 - Transfer Switch Neutral Terminal

J - Generator

K - Generator Ground Terminal

L - Generator Neutral Terminal

M - Generator Circuit Breaker

N - Ten pin Connector or Ten pin terminal block

P - Two pin Connector or Two pin terminal block

R1 - Main Distribution Panel 1

R2 - Main Distribution Panel 2

S1 - Distribution Panel Neutral Bus

S2 - Distribution Panel Neutral Bus

T1 - Distribution Panel Ground Bus

T2 - Distribution Panel Ground Bus

U1 - Transfer Switch Ground Terminal

U2 - Transfer Switch Ground Terminal

V1 - Load Connections to Distribution Panel

V2 - Load Connections to Distribution Panel

W1 - Service Entrance Breaker - UTILITY 1

W2 - Service Entrance Breaker - UTILITY 2

Y - Generator Connection

Z1 - Utility Connection

Z2 - Utility Connection

14 BRIGGSandSTRATTON.COM

{

FROM

UTILITY

FROM

UTILITY

FROM

GENERATOR

{

LINE2

LINE1

}

FROM

UTILITY

SUPPLY

A1 B1 B2

{

FROM

UTILITY

FROM

UTILITY

FROM

GENERATOR

{

LINE2

LINE1

}

FROM

UTILITY

SUPPLY

R1 R2

16 BRIGGSandSTRATTON.COM

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

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.

Set dipswitches with utility and generator power removed from

the transfer switch to ensure proper control system operation.

If dipswitches are set when power is present at transfer switch,

a power reset needs to be performed before the new dipswitch

settings will take effect. Power reset is when all power is removed

from the transfer switch and then reintroduced after 30 seconds.

NOTICE Transfer switch fault message will occur on standby

generator control board if dipswitches are not properly established

as noted above.

To properly establish the dipswitches, make sure that only one

dipswitch is set to “ON” position for DPSW1 and one dipswitch for

DPSW2. For example a 20kW generator, set DPSW2 dipswitch

20 to “ON” position and DPSW1 dipswitch 0 to “ON” position.

20,000 plus 0 equal 20,000 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.

Refer to following chart for proper switch selection(s).

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.

DPSW

DPSW2

JP2

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.

kW Rating

Generator

DPSW

#1 “ON”

Position

DPSW

#2 “ON”

Position

7kW 7 0

8kW 8 0

9kW 9 0

10kW* 0 10

11kW* 1 10

12kW 2 10

13kW* 3 10

14kW 4 10

15kW 5 10

16kW 6 10

17kW 7 10

18kW 8 10

19kW 9 10

20kW 0 20

30kW 0 30

45kW 5 40

48kW 8 40

50kW 0 50

60kW 0 60

* For generators with a rating that includes 500 Watts, round down to

next lowest rating

(example: 13.5 kW set to 13kW)

Remote Module Setup

Each remote module features a priority selector (A) 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.

NOTICE When setting priorities, use the number on the clear

protective barrier. DO NOT use the number printed on the

control board.

NOTICE When using multiple modules, it is required that separate

priorities (1-8) be used. DO NOT set the same priority level in

multiple modules.

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 owner, set each remote module’s priority

selector switch to the desired priority position. Assign a different

priority to each remote module for optimum operation.

Testing the Automatic Transfer Switch

Turn both of the utility service disconnect circuit breakers feeding

the transfer switch contactors to the OFF position. The system’s

automatic sequence described below will initiate. To return to utility

power, turn the utility service disconnect circuit breakers 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

There is a 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 and after the initial warm-up period. 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

will 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 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.

NOTICE Any time the remote module is turned off, even under

utility power, there is a 5 minute delay in power being restored to

the module.

Engine Cool Down

Engine will run for 60 seconds after retransfer.

WARNING Shock Hazard. Equipment contains high voltage

that could result in death, serious injury and/or

property damage.

• Testing must only be performed by qualified personnel.

• DO NOT operate this equipment imprudently or neglect its

maintenance.

18 BRIGGSandSTRATTON.COM

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 both of the utility service disconnect circuit breakers

feeding the transfer switch contactors 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

turn ON.

4. Verify signal was received by remote module set to priority

one. Follow the test guidelines for each module:

4a. 50 Amp Module: Relay contacts will be closed. Relay and

communication LED’s will be green. Appliance/load will

have power.

4b. Low Voltage Module (Single or Dual): Verify continuity

across low voltage control wiring contacts (E).

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. The priority 2 LED and

load connected to remote module set to priority 2 will turn

ON. Repeat step 4 for each priority number being managed.

5a. 50 Amp Module: If off, relay LED status is off.

Communication LED status is green.

5b. Low Voltage Module (Single or Dual): If off, low voltage

communication LED status is green. Continuity will not be

measured across low voltage contacts.

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

breakers to the ON position. All managed loads will be

turned off and turn back on after 5 minutes.

LED

Closed

Open

WARNING Shock Hazard. Equipment contains high voltage

that could result in death, serious injury and/or

property damage.

• Testing must only be performed by qualified personnel.

• DO NOT operate this equipment imprudently or neglect its

maintenance.

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 the transfer switch, set both utility disconnect circuit

breakers

to ON position.

2. In the 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 the total generator load meets a preset

value, the Symphony II system control board will start removing

loads, starting with the lowest priority (highest number) load. The

Symphony II system will add or remove managed loads based on

the generator output capacity and priority settings.

The Symphony II system waits 10 seconds between adding or

removing each load to permit the system to stabilize. If too much

load demand is seen, the Symphony II system will remove all

managed loads quickly to prevent the generator from overloading.

Once the load demand has stabilized, the Symphony II system will

determine when power is available and then add the remote module

loads to the generator after a 5 minute delay.

There is a minimum five minute delay between the time utility

power is lost and priority 1 loads may be 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.

Enclosure Door

To open the transfer switch door, remove the two exterior thumb

screws (A) and carefully lift off door.

To close and secure the door, push door closed against enclosure.

While in this position, the door can rest on the tab (B) at the

bottom of the enclosure. Reinstall both thumb screws to finger

tight. Enclosure door MUST be closed and secured at all times

except when system is being serviced.

20 BRIGGSandSTRATTON.COM

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 removal 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 that will

receive generator power within the building and constantly receives

system status via the power line communication technology utilized

by the Symphony II Power Management System during generator

power.

POWER LIGHT (A)

When lit, indicates that monitor

detects outlet power.

When not lit, indicates that no

power is present at outlet.

COMM (communication status)

LIGHT (B)

When lit, indicates that unit

is receiving signals from the

Symphony II controller.

When not lit, indicates that utility

power is present, or possibly

power line noise causing a

communication issue, or a fault

in Symphony II controller.

PRIORITY LIGHTS/LED’s (C)

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.

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 (D) means GENERATOR power is present.

GREEN (E) means UTILITY power is present.

Symphony II System Control Board

STATUS LED (F)

Single Blink-Pause means unit is operating on GENERATORpower.

Double Blink–Pause means unit is operating on UTILITYpower.

PRIORITY LIGHTS/LED’s (C & 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.

CT1

CT2

DPSW2

DPSW1

D E

312113

LED

F G

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