Briggs & Stratton 50A NEMA 3R User Manual

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: Home Generator Helpline

Llamada: Línea Directa de Generador de Hogar

Appelez: Ligne Directe de Génératrice la

Maison - 1-800-743-4115 M-F 8-5 CT

Web: www.homegeneratorsystems.com

Models 071004 & 071005 Part No. 198581GS Rev.- (03/30/06)

5500AA NNEEMMAA 11 // NNEEMMAA 33RR MMaannuuaall TTrraannssffeerr SSwwiittcchh

TABLE OF CONTENTS

TABLE OF CONTENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

SAFETY RULES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 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

ESSENTIAL CIRCUIT ISOLATION . . . . . . . . . . . . . . . . . . 7

Power Wiring Interconnections . . . . . . . . . . . . . . . . . . 8

SYSTEM OPERATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Model 071004 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Model 071005 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

When Calling The Factory . . . . . . . . . . . . . . . . . . . . . . 9

SERVICE PARTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

WARRANTY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

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.

IMPORTANT SAFETY INSTRUCTIONS

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.

SAVE THESE INSTRUCTIONS

• 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

• 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

• 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

• Licensed electrician must perform installation of transfer switch.

• Follow all applicable federal,state and local codes, standards and regulations.

Contact with live parts can cause electric shock or burn.

WARNING

INTRODUCTION

Thank you for your purchase of this Briggs & Stratton

Manual Transfer Switch.This product is intended for use with Briggs & Stratton Home Generator Systems ONLY. This is for use with optional home standby systems which provide 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).

IMPORTANT: DO NOT use with generator’s protected by Ground Fault Circuit Interruptors.

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 electricians

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.

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, standards and regulations.

• Ensure generator is not overloaded with selected loads.

Equipment Description

These transfer switches are intended to operate compatible electrical loads of normal residential installations.The load is connected either to utility power (normal) or home standby power (generator).

These manual transfer switches are equipped with two circuit breakers (“GENERATOR SUPPLY” and “UTILITY SUPPLY”) and a mechanical interlock.The “GENERATOR SUPPLY” circuit breaker provides power from the generator to the load devices wired to the manual transfer switch.The “UTILITY SUPPLY” circuit breaker provides utility power from the distribution panel to the load devices wired to the manual transfer switch.

The mechanical interlock allows the circuit breakers for either the generator power “GENERATOR SUPPLY” or the utility power “UTILITY SUPPLY” to be turned on to provide power to the selected house loads.These manual transfer switches will not allow utility line power and generator power to be connected to a load device at the same time.

If utility line power is restored while generator power is being used, there will be no affect on the generator or transfer switch components.When utility power is restored, follow the instructions in the section “System Operation”.

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. Freight damaged parts are not warranted.

Shipment Contents

• Manual Power Transfer Switch

• Installation and Operator’s Manual

Mounting Guidelines

The Model 071004 Manual Transfer Switch is enclosed in a NEMA Type 1 enclosure suitable for indoor use only.

The Model 071005 Manual Transfer Switch is enclosed in a NEMA Type 3R enclosure suitable for indoor/outdoor use.

Guidelines for mounting the Manual Transfer Switch include:

• Model 071005 Manual Transfer Switch must be installed with minimum NEMA 3R hardware for conduit connections.

• Install switch on a firm, sturdy supporting structure.

• To assure easy insertion or removal of circuit breakers, level and plumb enclosure.This can be done by placing washers between switch enclosure and mounting surface.

• NEVER install switch where any corrosive substance might drip onto enclosure.

• Protect switch at all times against excessive moisture, dust, dirt, lint, construction grit and corrosive vapors.

The typical installation of the Manual Power Transfer Switch is depicted in Figure 1. Discuss layout suggestions/changes with the owner before beginning the system installation process.

Manual

Transfer Switch

Main

Distribution

Panel

Figure 1 — Typical Switch Mounting

Model 071004 shown

INSTALLATION

ESSENTIAL CIRCUIT

ISOLATION

Essential electrical loads are loads that will be powered by the Home Generator System. Essential loads are grouped together and wired into the transfer switch.

TO THE INSTALLER: Consult with Home Generator System owner(s) to discuss their “Selection of Essential Circuits”, described in operator’s manual.

Ensure that the total of the selected load circuits fed by this transfer switch are within the generator's rated capacity.

The following requirements apply to this type of isolation system:

• The Manual Transfer Switch is installed after the main distribution panel.

• The Manual Transfer Switch has a load rating of 50 Amps. This is the maximum load rating of the essential loads.

All wiring must conform to national, state and local codes. The illustration in Figure 2 depicts the Home Generator

System and assumes the utility is supplying 120/240 Volt, single-phase electrical service.

Figure 2 — Typical System Diagram with Essential Circuits

To Utility Power

Watt Meter

Main Distribution Panel

To Air Conditioner (240V)

To Other Circuits (120V)

To Range

To Water Heater

240V

To Briggs & Stratton

Standby Generator

120V To Microwave 120 V To Bathroom

240V To Well Pump

120V To Sump Pump

120V

To Furnace Blower

To Lights

To Refrigerator

120V To Freezer

Manual Transfer Switch

(in utility position)

Neutral

Utility Supply

Generator Supply

Equipment Ground Bus

INSTALLATION

Figure 3 — A Typical Installation Diagram for Transfer Switch

Main Distribution Panel

Ground Bus

Neutral

Bus

To Generator

Generator

Connection

Utility

Connection

Neutral

Bus

Power Wiring Interconnections

All wiring must be the proper size, properly supported, of approved insulation qualities,and protected by NEC approved conduit.

Complete the following connections between the generator, transfer switch and main distribution panel (Figure 3).

1. Connect utility power supply leads from two pole breaker installed in main distribution panel to transfer switch two pole breaker marked “UTILITY SUPPLY”. A 50 Amp circuit breaker is provided. Ensure breaker is turned OFF.

2. Connect main distribution panel ground to transfer switch “GND” bus.

3. Connect main distribution panel neutral lead to transfer switch “NEUTRAL” terminal.

4. Connect generator power supply leads from generator’s control panel to transfer switch two pole breaker marked “GENERATOR SUPPLY”.

5. Connect generator “GND” from control panel to transfer switch “GND” terminal.

6. Connect generator Neutral from control panel to transfer switch “NEUTRAL” terminal.

7. Tighten all wire connections/fasteners to proper torque.

OPERATION AND SPECIFICATIONS

SYSTEM OPERATION

To transfer from utility power to generator power:

1. Turn OFF main breaker labeled “UTILITY SUPPLY”.

2. Turn OFF all branch circuit breakers in transfer switch.

3. Slide mechanical interlock and turn “GENERATOR SUPPLY” breaker to ON position.

4. Turn ON branch circuit breakers one at a time.

To transfer from generator power back to utility power:

1. Turn OFF main breaker labeled “GENERATOR SUPPLY”.

2. Turn OFF all branch circuit breakers in transfer switch.

3. Slide mechanical interlock and turn “UTILITY SUPPLY” breaker to ON position.

4. Turn ON branch circuit breakers one at a time.

Specifications

UL® 1008 Listed Transfer Switch Model 071004

Enclosure. . . . . . . . . . . . . . . . . . . NEMA 1

Maximum Load/Circuit:

from Load Center . . . . . . . . . . 50 Amps

Rated AC Voltage. . . . . . . . . . . . . 250 Volts

Poles . . . . . . . . . . . . . . . . . . . . . . 2

Fault Current Rating . . . . . . . . . . 10,000 RMS Symmetrical

Amperes

Weight . . . . . . . . . . . . . . . . . . . . . 27 lbs.

Model 071005

Enclosure. . . . . . . . . . . . . . . . . . . NEMA 3R

Maximum Load/Circuit:

from Load Center . . . . . . . . . . 50 Amps

Rated AC Voltage. . . . . . . . . . . . . 250 Volts

Poles . . . . . . . . . . . . . . . . . . . . . . 2

Fault Current Rating . . . . . . . . . . 10,000 RMS Symmetrical

Amperes

Weight . . . . . . . . . . . . . . . . . . . . . 34 lbs.

When Calling the Factory

Before contacting Briggs and Stratton Power Products regarding service or repair of this transfer switch, obtain the Model Number from the unit data decal located on or inside the case.

To contact Briggs and Stratton Power Products call 1-800-743-4115, between 8:00 AM and 5:00 PM CT.

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