Simplicity 040255-0 Manuel utilisateur

Marque: Simplicity

Modèle: 040255-0

Catégorie: Groupes électrogènes

Taper: Manuel utilisateur

12000 / 15000 Watt

Residential Generator

System

Operator’s Manual

GEN12S, GEN15S, GEN20B & GEN25B

Manual No. 202114GS Rev. - (01/03/07)

Questions?

Help is just a moment away!

Call: Home Generator Helpline

(877) 369-9400 M-F 8-5 CT

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Thank you for purchasing this quality-built Rheem / Ruud home standby generator. We are pleased that you’ve placed your

confidence in the Rheem or Ruud brand. When operated and maintained according to the instructions in this manual, your

Rheem / Ruud generator will provide many years of dependable service.

This manual contains safety information to make you aware of the hazards and risks associated with home standby

generators and how to avoid them. Because Rheem does not necessarily know all the applications this equipment could be

used for, it is important that you read and understand these instructions thoroughly before attempting to start or operate this

equipment. Save these instructions for future reference.

This home standby generator requires professional installation before use. Refer to the separate Installation manual for

instructions on safe installation procedures. Your installer should follow the instructions completely.

Where to Find Us

You never have to look far to find support and service for your home standby generator equipment. Consult your Yellow

Pages. There are many Rheem and Ruud authorized service dealers who provide quality service. You can also contact

Rheem/Ruud Customer Service by phone at (877) 369-9400.

Home Standby Generator

Model Number

Revision

Serial Number

Engine

Model Number

Type Number

Code Number

Date Purchased

Rheem Manufacturing Company

Randleman, NC 27317

(877) 369-9400

reserved. No part of this material may be reproduced or

transmitted in any form by any means without the express

written permission of Rheem Manufacturing Company.

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Table of Contents

Important Safety Rules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

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

Fuel Factors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Generator Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Home Generator System Location. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Essential Circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Unpacking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Shipment Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Before Initial Start-Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Engine Oil. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Battery Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Gaseous Fuel System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Controls and Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

System Control Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Access Doors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Checking Automatic Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Servicing the System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Setting Exercise Timer. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Fault Detection System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Changing Engine Oil. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Cleaning the Generator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

When Calling the Factory. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

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Important Safety Rules

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. NOTICE indicates a situation that could result in

equipment damage. Follow safety message instructions 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 generator unsafe.

NOTE: Your generator is equipped with a spark arrester

muffler. The spark arrester must be maintained in effective

working order by the owner/operator. In the State of

California, a spark arrester is required by law (Section 4442

of the California Public Resources Code). Other states may

have similar laws. Federal laws apply on federal lands.

Hazard Symbols and Meanings

Save These Instructions

Explosion

Fire

Electrical Shock

Rotating Parts

Hot Surface

Toxic Fumes

Chemical BurnExplosive PressureAuto Start

• Operate generator ONLY outdoors.

• Install a battery operated carbon monoxide alarm near the

bedrooms.

• Keep exhaust gas from entering a confined area through

windows, doors, ventilation intakes, or other openings.

WARNING

Running engine gives off carbon monoxide, an

odorless, colorless, poison gas.

Breathing carbon monoxide can cause headache,

fatigue, dizziness, vomiting, confusion, seizures,

nausea, fainting or death.

• DO NOT dispose of battery in a fire.

• Do not allow any open flame, spark, heat, or lit cigarette during

and for several minutes after charging a battery.

• DO NOT open or mutilate the battery.

• Wear protective goggles, rubber apron, and rubber gloves.

• Remove watches, rings, or other metal objects.

• Use tools with insulated handles.

WARNING

Storage batteries give off explosive hydrogen gas

during recharging.

Slightest spark will ignite hydrogen and cause

explosion.

Battery electrolyte fluid contains acid and is

extremely caustic.

Contact with battery contents will cause severe

chemical burns.

A battery presents a risk of electrical shock and

high short circuit current.

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• When using generator for backup power, notify utility company.

• Do not touch bare wires or receptacles.

• Do not use generator with electrical cords which are worn,

frayed, bare or otherwise damaged.

• Do not handle generator or 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 generator.

• In case of an accident caused by electrical shock, immediately

shut down the source of electrical power and contact the local

authorities. Avoid direct contact with the victim.

• Despite the safe design of the Home Generator System,

operating this equipment imprudently, neglecting its

maintenance or being careless can cause possible injury or

death.

• Remain alert at all times while working on this equipment. Never

work on the equipment when you are physically or mentally

fatigued.

• Before performing any maintenance on the generator, disconnect

the battery cable indicated by a NEGATIVE, NEG or (-) first.

When finished, reconnect that cable last.

• After your Home Generator System is installed, the generator

may crank and start without warning any time there is a power

failure. To prevent possible injury, always set the generator’s

system switch to OFF, remove the service disconnect from the

disconnect box AND remove the 15 Amp fuse BEFORE working

on the equipment.

WARNING

Generator produces hazardous voltage.

Failure to properly ground generator can result in

electrocution.

Failure to isolate generator from power utility can

result in death or injury to electric utility workers

due to backfeed of electrical energy.

• DO NOT touch hot parts and AVOID hot exhaust gases.

• Allow equipment to cool before touching.

• DO NOT install the generator closer than 5 feet (1.5m) from any

combustibles or structures with combustible walls having a fire

resistance rating of less than 1 hour.

• Keep at least 3 ft. (91 cm) clearance on all sides of generator

including overhead.

• Code of Federal Regulation (CFR) Title 36 Parks, Forests, and

Public Property require equipment powered by an internal

combustion engine to have a spark arrester, maintained in

effective working order, complying to USDA Forest service

standard 5100-1C or later revision. In the State of California a

spark arrester is required under section 4442 of the California

Public resources code. Other states may have similar laws.

WARNING

Contact with muffler area can result in serious

burns.

Exhaust heat/gases can ignite combustibles or

structures causing a fire.

• Install the fuel supply system according to applicable fuel-gas

codes.

• Before placing the Home Generator System into service, the fuel

system lines must be properly purged and leak tested.

• After the generator is installed, you should inspect the fuel

system periodically.

• NO leakage is permitted.

• DO NOT operate engine if smell of fuel is present or other

explosive conditions exist.

• DO NOT smoke around the generator. Wipe up any oil spills

immediately. Ensure that no combustible materials are left in the

generator compartment. Keep the area near the generator clean

and free of debris.

WARNING

Propane and Natural Gas are extremely flammable

and explosive.

Fire or explosion can cause severe burns or

death.

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• Use generator only for intended uses.

• If you have questions about intended use, ask dealer or contact

Rheem.

• Operate generator only on level surfaces.

• Adequate, unobstructed flow of cooling and ventilating air is

critical to correct generator operation.

• The Oil Fiil, Oil Drain and the Control Panel doors must be

installed whenever the unit is running.

• DO NOT expose generator to excessive moisture, dust, dirt, or

corrosive vapors.

• Despite the safe design of the Home Generator System, operating

this equipment imprudently, neglecting its maintenance or being

careless can cause possible injury or death.

• Remain alert at all times while working on this equipment.

NEVER work on the equipment when you are physically or

mentally fatigued.

• DO NOT start engine with air cleaner or air cleaner cover

removed.

• DO NOT insert any objects through cooling slots.

• DO NOT use the generator or any of its parts as a step. Stepping

on the unit can cause stress and break parts. This may result in

dangerous operating conditions from leaking exhaust gases, fuel

leakage, oil leakage, etc..

• If connected devices overheat, turn them off and disconnect

them from generator.

• Shut off generator if:

-electrical output is lost;

-equipment sparks, smokes, or emits flames;

-unit vibrates excessively.

NOTICE

Improper treatment of generator can damage it and shorten

its life.

• See “Essential Circuits”.

• Start generator and let engine stabilize before connecting

electrical loads.

NOTICE

Exceeding generators wattage/amperage capacity can

damage generator and/or electrical devices connected to it.

• Observe that the 15 Amp fuse has been removed from the

control panel for shipping.

• DO NOT install this fuse until all plumbing and wiring has been

completed and inspected.

CAUTION

Installing the 15A fuse could cause the engine to

start.

• DO NOT tamper with governed speed. Generator supplies correct

rated frequency and voltage when running at governed speed.

• DO NOT modify generator in any way.

CAUTION

Excessively high operating speeds increase risk of injury

and damage to generator.

Excessively low speeds impose a heavy load.

• NEVER operate generator without protective housing or covers.

• DO NOT wear loose clothing, jewelry or anything that may be

caught in the starter or other rotating parts.

• Tie up long hair and remove jewelry.

WARNING

Starter and other rotating parts can entangle

hands, hair, clothing, or accessories.

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Introduction

Thank you for your purchase of a Rheem / Ruud Home

Generator System (HGS). This product is intended for use as

an optional home standby system which provides an

alternate source of electric power and to serve loads such as

heating, refrigeration systems, 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).

Rheem has made every 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 and plumbing contractors

should attempt HGS installations. Installations must

strictly comply with all applicable codes, industry

standards and regulations.

Your Rheem / Ruud Home Generator System is supplied with

this “Operator’s Manual” and a separate “Installation

Manual”. These are important documents and should be

retained by the owner after the installation has been

completed.

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 HGS installation.

To arrange for proper installation, contact your Rheem /

Ruud Home Generator System authorized dealer, a licensed

electrician or your utility power provider.

The HGS Warranty is VOID unless the system is installed

by licensed electrical and plumbing professionals.

The Emission Control System for this generator is warranted

for standards set by the U.S. Environmental Protection

Agency and by the California Air Resources Board (CARB).

Owner Orientation

This section provides Home Generator System owners with

the information necessary to achieve the most satisfactory

and cost effective installation possible.

Illustrations herein are for typical circumstances and are

meant to familiarize you with the installation options

available with your Home Generator System. A thorough

understanding of these options will provide fundamental

control over the cost of your installation, as well as ensure

your final satisfaction and security.

Federal and local codes, appearance, noise levels, fuel types,

and distances are the factors that must be considered when

negotiating with an installation professional. Remember that

as the distance from the existing electrical service and

gaseous fuel supply increases, equal compensations in

piping and wiring materials must be allowed for. This is

necessary to comply with local codes and overcome

electrical voltage drops and gaseous fuel pressure drops.

The factors mentioned above will have a direct affect on

the overall price of your Home Generator System

installation.

NOTE: Electrical permits for installing the Home Generator

System, building permits for installing gas lines, and permits

for noise allowances may be required. Your installer should

check your local codes AND obtain the permits before

installing the system.

Fuel Factors

An important consideration affecting the entire installation is

the type of fuel used by your Home Generator System. The

system was factory tested and adjusted using natural gas as

a fuel. Liquid propane (LP) may also be used as a fuel (see

the Installation Manual).

Although there are specific factors that are inherent to each

of these fuels, your location and the duration of possible

utility interruptions should guide your selection of fuel type.

For urban installations, Natural Gas (if available) should be

your fuel of choice. For remote installations, a Liquefied

Petroleum (LP) tank might better meet your needs.

For proper engine function, the following fuel guidelines are

recommended:

• Use clean, dry fuel, free of moisture or any particulate

material. Using fuels outside the following

recommended values may cause performance

problems.

In engines set up to run on propane (LP) gas,

commercial grade HD5 propane with a minimum fuel

energy of 2500 BTUs/ft3 with maximum propylene

content of 5% and butane and heavier gas content of

2.5% and minimum propane content of 90%.

• The Home Generator System is equipped with an automatic

safety gas “fuel shut-off” valve.

• DO NOT operate the equipment if the “fuel shut-off” valve is

missing or inoperative.

WARNING

Propane and Natural Gas are extremely flammable

and explosive.

Fire or explosion can cause severe burns or

death.

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Power Decrease at High Altitude or High Temperature

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). Make sure you and

your installer consider these factors when determining total

generator load.

Generator Location

The actual physical location of your HGS has a direct affect

on:

1. The amount of plumbing required to fuel your

generator.

2. The amount of wiring required to control and connect

your generator.

NOTE: Specific location guidelines are discussed in the

Installation Manual. Acquaint yourself with that information

and confer with your installer. Be sure to ask how your site

might affect installation costs and compliance with local

codes and standards.

Home Generator System Location

Before installing generator, consult with homeowner and

convey the following guidelines which may affect the desired

location.

Generator Clearances

Install generator outdoors in an area which will not

accumulate deadly exhaust gas. DO NOT install generator

where exhaust gas could accumulate and enter inside or be

drawn into a potentially occupied building. Ensure exhaust

gas is kept away from any windows, doors, ventilation

intakes or other openings that can allow exhaust gas to

collect in a confined area (Figure 1). Prevailing winds and air

currents should be taken into consideration when positioning

generator.

Figure 1 — Home Generator System Location

General Location Guidelines

• Install the unit outdoors ONLY.

• Place the unit in a prepared location that is flat and has

provisions for water drainage.

• Install the unit in a location where sump pump

discharge, rain gutter down spouts, roof run-off,

landscape irrigation, or water sprinklers will not flood

the unit or spray the enclosure and enter any air inlet

our outlet openings.

• Install the unit where the location of any services such

as phone, electrical, fuel, air conditioning, irrigation,

including covered, concealed and underground services

will not be affected or obstructed.

• Install the unit where air inlet and outlet openings will

not become obstructed by leaves, grass, snow, etc. If

prevailing winds will cause blowing or drifting, you may

need to construct a windbreak to protect the unit.

• Install the generator as close as possible to the Transfer

Switch to reduce the length of wiring and conduit.

• Install the generator as close as possible to the fuel

supply to reduce length of pipes.

• Operate generator ONLY outdoors.

• Install a battery operated carbon monoxide alarm near the

bedrooms.

• Keep exhaust gas from entering a confined area through

windows, doors, ventilation intakes, or other openings.

WARNING

Running engine gives off carbon monoxide, an

odorless, colorless, poison gas.

Breathing carbon monoxide can cause headache,

fatigue, dizziness, vomiting, confusion, seizures,

nausea, fainting or death.

• DO NOT install the generator closer than 5 feet (1.5m) from any

combustibles or structures with combustible walls having a fire

resistance rating of less than 1 hour.

• Keep at least 3 ft. (91 cm) clearance on all sides of generator

including overhead.

WARNING

Exhaust heat/gases can ignite combustibles or

structures causing a fire.

Exhaust Port

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IMPORTANT: Laws or local codes may regulate the distance

to the fuel supply.

The Home Generator System is shipped already attached to

its mounting pad. Unless mandated by local code, a concrete

slab is not required.

If mandated by local code, construct a concrete slab at least

3 inches thick and 6 inches longer and wider than the unit.

Attach unit to slab with 1/4” diameter (minimum) masonry

anchor bolts long enough to retain the unit.

Essential Circuits

As a Home Generator System owner, it is important that you

clearly identify the circuits in your building that are "essential"

to you.

It is important that your installer understand which circuits

you want to include as "Essential Circuits". Depending on the

power consumed by these circuits, most or all of them can

be switched to the Home Generator System for the duration

of normal power interruption.

The wattage reference guide shown in Figure 2 will assist you

with your decision-making process. It provides the wattage

used by many ordinary household devices. Use it as a guide

when selecting your essential circuits. Review this

information with your installer and ask about any technical

considerations that might affect the cost of your installation.

Figure 2 — Wattage Reference Guide

*Allow three (3) times listed watts for starting device

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Essential Circuit Selection

When selecting the essential circuits that will be switched to

“Standby Power,” it is important that the sum of the combined

circuit loads does not exceed the wattage/amperage capacity of

the generator. To help you with your selection of essential

circuits, please consider the following:

Add up the total wattage of all electrical devices to be

connected at one time. This total should NOT be greater

than the generator’s wattage capacity.

The rated wattage of lights can be taken from light

bulbs. The rated wattage of tools, appliances and

motors can usually be found on a data plate or decal

affixed to the device.

If the appliance, tool or motor nameplate does not list

wattage, multiply volts times the ampere rating to

determine watts (Volts x Amps = Watts).

Some electric motors (induction types) require about

three times more watts of power for starting than for

running. This surge lasts for only a few seconds. Be

sure you allow for this high starting wattage when

selecting electrical devices that will be energized by the

Home Generator System:

• Figure the watts required to start the largest motor.

• Add that to the total running watts of all other

connected loads.

This Rheem / Ruud Home Generator System complies with

the following “stationary standby power rating”:

The standby power rating is applicable for supplying

power for the duration of normal power interruption.

No sustained overload capability is available for this

rating.

This rating is applicable to installations served by a

reliable normal utility source. This rating is only

applicable to variable loads with an average load factor

of 80% of the standby rating. The standby rating is only

applicable for optional standby power where the

generator set serves as the backup to the normal utility

source.

Use the “Wattage Reference Guide” provided and mark those

circuits you consider “critical” or “essential”. Make sure you

and your installer consider the system’s altitude above sea

level and the ambient temperature range when determining

total generator load.

IMPORTANT: When using the 100 Amp or 200 Amp transfer

switch with the Home Generator System, you must turn off

any non essential loads. Failure to turn off non essential

loads could overload the generator causing it to shut down.

Some examples of non essential loads are:

• Pool pump

• Hot tub

• Electric hot tub and/or pool heaters

• Non-essential air conditioners

• Electric hot water heaters

• Electric range and/or oven

• Arc welder

• Non essential electric heaters

Assembly

Unpacking

Refer to the Installation Manual for detailed unpacking

instructions, if desired.

Delivery Inspection

After removing the carton, carefully inspect the Home

Generator System 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, separate the damaged materials and contact the

carrier for claim procedures. Missing or damaged parts are

not warranted.

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Shipment Contents

The Home Generator System is supplied with:

• Home Generator System

• Pre-attached mounting pad

• One flexible fuel hook-up hose

• Installation and start-up manual

• Operator’s manual

• Illustrated parts list manual

• Installation checklist

• Two access door keys

• Four lifting hole plugs

• Oil fill spout

• One spare 15A fuse

• 2 Pole connector (for 240V from house)

• 10 Pole connector (for sensing and control wires)

• Air intake engine cover

• Alternator cover

• Diagnostic LED kit (red LED/plate/screws (2))

Before Initial Start-Up

Engine Oil

This engine is shipped from the factory filled with the

recommended oil. Before starting the engine, check oil level

and ensure that engine is serviced as described in the engine

operator’s manual.

Oil Considerations

Your Home Generator System is equipped with an engine

that has been pre-run at the factory and does not require the

traditional “break-in” procedure.

The system is filled with synthetic oil (API SJ/CF 5W-30W).

This allows for system operation in the widest range of

temperature and climate conditions.

NOTE: The use of synthetic oil DOES NOT alter the required

oil change intervals described in the engine operator’s

manual.

Battery Connection

The Home Generator System is supplied with a 12 Volt DC

55 Amp-Hour, valve regulated battery. It is a sealed, lead-

acid rechargeable battery. It is installed in the unit and the

battery cables are connected at the factory. The generator’s

15 Amp fuse has been removed to prevent the unit from

starting during shipping.

NOTE: With the battery installed, all wiring to transfer switch

and Home Generator System completed, utility power

supplied to the Automatic Transfer Switch, and the unit in

AUTO mode, the battery receives a trickle charge while the

engine is not running. The trickle charger cannot be used to

recharge a battery that is completely discharged.

Gaseous Fuel System

• Ensure that all fuel connections are tight, secure and

without leaks.

• Ensure that all shutoff valves are OPEN and that

adequate pressure is available (see installation manual).

• Refer to engine manual for oil fill information.

• Damage to equipment resulting from failure to follow this

instruction will void warranty.

NOTICE

Any attempt to crank or start the engine before it has been

properly serviced with the recommended oil will result in

equipment failure.

• DO NOT install this fuse until all plumbing and wiring has been

completed and inspected.

CAUTION

Installing the 15A fuse could cause the engine to

start.

• DO NOT operate engine if smell of fuel is present or other

explosive conditions exist.

• If you smell ‘raw’ gaseous fuel (natural or LP) near the unit,

immediately turn off the gas supply to the Home Generator

System.

• Contact your gas utility or the system installer for assistance in

determining the source of the smell.

WARNING

Propane and Natural Gas are extremely flammable

and explosive.

Fire or explosion can cause severe burns or

death.

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Controls and Features

Read this Operator’s Manual and safety rules before operating your generator.

Compare the illustrations with your generator to familiarize yourself with the locations of various controls and

adjustments. Save this manual for future reference.

15 Amp Fuse — Protects the DC control circuits.

Air Cleaner — Protects engine by filtering dust and debris

out of intake air.

Battery — 12 Volt DC, 55 Amp-Hour sealed battery provides

power to start the engine. Battery receives trickle charge

whenever generator is not running.

Control Panel — Used for various test, operation and

maintenance functions. See the next page.

Engine Label — Identifies engine model and type.

Exhaust Port — High-performance muffler lowers engine

noise to comply with most residential codes.

Oil Dip Stick — Used to check the engine oil level.

Oil Drain Hose — Provided to facilitate oil changing.

Oil Fill Cap — Remove to service the engine with

recommended oil.

Oil Filter — Filters engine oil to prolong system life.

Unit Data Decal (located on base) — Identifies unit by serial

number.

Air Cleaner

Oil Filter

Control Panel Door Opening

Oil Fill Door Opening

Unit Data Decal

Oil Drain Door Opening

Exhaust Port

Oil Dip Stick

Fuel Inlet

Control Panel

(see page 11)

Battery

Oil Drain Hose

Oil Fill Cap

15 Amp Fuse

Engine Label

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15 Amp Fuse — Protects the Home Generator System DC

control circuits. If the fuse has ‘blown’ (melted open) or was

removed, the engine cannot crank or start. Replace the fuse

using only an identical ATO 15A fuse.

Circuit Breaker — Protects the system from shorts and

other over-current conditions. Must be ON to supply power

to the Automatic Transfer Switch.

Digital Display — Displays the total number of hours the

generator has been running and fault codes. Used to

schedule maintenance tasks and troubleshooting operational

problems with the Home Generator System. All fault

conditions are described in the section “Fault Detection

System”.

Manual Over-Ride Switch — With system switch in AUTO

position, push the manual over-ride switch to start the

generator. To turn off the generator, push and hold the

manual over-ride switch again until engine stops.

Service Tool — For use by qualified service personnel ONLY.

Set Exercise Switch — Used to set the exercise cycle start

time and day-of-the-week. Exercise cycle only occurs in

AUTO mode.

System Switch — This two-position switch is the most

important control on the system and is used as follows:

•“AUTO” position is the normal operating position. If a

utility power outage is sensed, the system will start the

generator. When utility power is restored, it lets the

engine stabilize internal temperatures, shuts off the

generator, and waits for the next utility power outage.

•“OFF” position turns off running generator, prevents

unit from starting and resets any detected faults.

System Control Panel

Compare this Control Panel illustration with your generator to familiarize yourself with the location of these important controls:

Manual Over-Ride

Switch

Set Exercise

Switch

System Switch

Digital Display

15 Amp Fuse

Service Tool

Circuit

Breaker

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Access Doors

The Home Generator System is equipped with an enclosure

that has three access doors (Figure 3). The doors are named

for a significant component located behind them. Starting

with the side that has the fuel connection and proceeding

clockwise, the doors are named:

• Oil Fill door

• Control Panel door

• Oil Drain door

Each Home Generator System is equipped with two identical

keys. These keys fit the locks that secure the access doors.

To Open an Access Door:

1. Insert key into lock of access door you wish to open

and turn one quarter turn counterclockwise.

2. Grasp door’s handle and turn one quarter turn

counterclockwise to open. Remove key.

To Close an Access Door:

1. Close door and turn doors handle one quarter of a turn

clockwise.

2. Insert key into lock of access door and turn one quarter

turn clockwise. Remove key.

Oil Fill Door

Fuel Inlet

Exhaust

Port

Control Panel Door

Oil Drain Door

Exhaust Bulkhead

Figure 3 — Enclosure Access Doors

• DO NOT touch hot parts and AVOID hot exhaust gases.

• Allow equipment to cool before touching.

WARNING

Contact with muffler area can result in serious

burns.

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Operation

To select automatic operation, do the following:

1. Set the service disconnect or main distribution panel

circuit breaker that sends utility voltage to the transfer

switch to ON.

2. Set the generator’s main circuit breaker to its ON

position.

3. Set the system switch to AUTO.

Checking Automatic Operation

To check the system for proper automatic operation, proceed

as follows:

1. Turn OFF the service disconnect or main distribution

panel circuit breaker sending power to the automatic

transfer switch.

The engine will crank and start when the utility voltage drops

out and the sensor has timed out. Let the system go through

its entire automatic operation sequence.

2. With the generator output supplying its loads, turn ON

the service disconnect or main distribution panel circuit

breaker that supplies utility power to the Automatic

Transfer Switch.

3. The automatic transfer switch will transfer loads back

to the utility power after 5 minute minimum run time

and utility is restored.

4. The generator will run for an additional one minute for

engine cool down, then shut down.

NOTE: If utility is restored and generator does not shut down

after 10 minutes, set system switch to OFF and contact your

installer or local service center.

This completes the test procedures for automatic operation.

The Home Generator System will now start automatically

when utility power is lost and will supply power to the

transfer switch.

Servicing the System

To service system:

1. Set the system switch to OFF.

2. Set the generator’s main circuit breaker to its OFF

position.

3. Utility voltage is present. Disconnect power before

servicing by removing the two 2 Amp fuses from the

transfer switch.

Setting Exercise Timer

The Home Generator System is equipped with an exercise

timer that will start and exercise the system once every

seven days. During this exercise period, the unit runs for

approximately 20 minutes and then shuts down. Electrical

load transfer DOES NOT occur during the exercise cycle

(unless an utility power outage occurs).

A switch on the control panel is labeled “Set Exercise” (see

page 11). The specific day and the specific time of day this

switch is pressed is programmed into the control board

memory. This date and time is then used to automatically

initiate the system exercise cycle. The LED on the control

panel will flash until the set exercise is set.

To perform the Set Exercise procedure:

1. Choose the day and time you want your Home

Generator System to exercise.

2. On that day and time, press and hold down the “Set

Exercise” switch for three seconds.

NOTE: The LED will flash until the switch is pressed for three

seconds, then the LED will illuminate for 5 seconds and turn

off.

For example, if you press the “Set Exercise” switch on

Sunday morning at 10:00 AM, the unit will run an exercise

cycle the following Sunday at 10:00 AM (+/- 1/2 hour).

NOTE: “Set Exercise” will only work if the unit is in the

Automatic mode and this exact procedure is followed. The

exerciser will need to be re-set if the 15 Amp fuse is

removed or changed, or if the 12 Volt DC battery is

disconnected.

If you want to change the day and time the unit exercises,

simply perform the “Set Exercise” procedure at the exact

weekday and time you want it to take place.

• To prevent possible injury that might be caused by such sudden

starts, always set the system switch to OFF.

• Remove the 15 Amp fuse before working on or around the

generator or transfer switch.

CAUTION

With the switch set to AUTO, the engine may

crank and start at any time without warning. Such

automatic starting normally occurs when utility

source voltage drops below a preset level or

during the normal exercise cycle.

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Fault Detection System

The generator may have to run for long periods of time with

no operator present. For that reason, the system is equipped

with sensors that automatically shut down the generator in

the event of potentially damaging conditions, such as low oil

pressure, high oil temperature, over speed, and other

conditions.

The generator's control panel has a digital display to show

fault codes. An extra LED indicator is installed at a

convenient inside location. The LED will turn on and off in a

series of blinks if certain problems are detected in your HGS.

The blink pattern is repeated with a brief pause between each

series. The fault code as shown on the control panel, and the

number of blinks on the mounting plate, indicates the

detected fault and as follows:

Fault Codes / LED Flashes Fault Description

FC_1 / 1 Low battery voltage

FC_2 / 2 Low oil pressure

FC_3 / 3 Low voltage

FC_4 / 4 Engine fail to start

FC_5 / 5 Low frequency

FC_6 / 6 Engine overspeed

FC_7 / 7 Oil temperature high

FC_8 / 8 Transfer switch fault

Reset Fault Detection System

The operator must reset the fault detection system each time

it activates. To do so, place the system switch in the OFF

position for 5 seconds or more. Return the Home Generator

System to service after correcting the problem by placing the

system switch in the AUTO position.

A description of each fault and suggested remedies are as

follows:

No LED - Discharged Battery

This condition is caused by a completely discharged battery.

To remedy the problem, remove the 15 Amp fuse and

disconnect the battery from the generator. Take the battery to

a local battery store for analysis.

Replace the battery after it has been fully recharged,

connecting the NEGATIVE cable last. Install the 15 Amp fuse.

Low Battery Voltage

This fault is indicated by fault code FC_1 and one blink on

the LED indicator. This condition occurs if the generator

cannot start because the starting battery output power is

below that needed to crank the engine. Causes for this

problem may be a faulty battery or trickle charger circuit.

To remedy the problem, contact your local service center to

check the battery trickle charge output. Remove the 15 Amp

fuse and disconnect the battery from the generator. Take the

battery to a local battery store for analysis.

Replace the battery after it has been fully recharged,

connecting the NEGATIVE cable last. Install the 15 Amp fuse.

Low Oil Pressure

This fault is indicated by fault code FC_2 and two blinks on

the LED indicator. The unit is equipped with an oil pressure

switch (Figure 4) using normally closed contacts that are

held open by engine oil pressure during operation. Should oil

pressure drop below the 8 psi range, switch contacts close

and the engine is shut down.

To remedy the low oil pressure condition, add the

recommended oil to the FULL mark on the dipstick.

If low oil pressure condition still exists, engine will start,

then shut down after about 20 seconds and diagnostic LED

will flash. In this case, contact an authorized service facility.

Figure 4 — Low Oil Pressure & High Temp. Switches

High

Temperature

Switch

Oil Drain

Fitting

Oil

Pressure

Switch

High

Temperature

Switch

Oil Drain

Fitting

Oil

Pressure

Switch

15kW

12kW

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Low Voltage (Generator)

This fault is indicated by fault code FC_3 and three blinks on

the LED indicator. This condition is caused by a restriction in

the fuel flow, a broken or disconnected signal lead, a failed

alternator winding, the control panel circuit breaker is open,

or Home Generator System is overloaded.

To remedy the problem, contact your local service center.

Engine Fail To Start

This fault is indicated by fault code FC_4 and four blinks on

the LED indicator. This feature prevents the generator from

damaging itself if it continually attempts to start in spite of

another problem, such as no fuel supply. Each time the

system is directed to start, the unit will crank for

10 seconds, pause for 10 seconds, crank for 10 seconds,

pause for 10 seconds, and repeat. If the system does not

begin producing electricity after approximately 2 minutes,

the unit will stop cranking and the LED will blink.

Check to make sure the generator’s main circuit breaker is in

the ON (closed) position in order for the sensing leads to

verify that the unit is running.

The most likely cause of this problem is no fuel supply.

Check the inside and outside fuel shut off valves to ensure

they are fully open. Other causes could be failed spark

plug(s), failed engine ignition, or the engine air filter is

clogged. You may need to contact your installer for

assistance if you can’t remedy these problems.

Low Frequency

This fault is indicated by fault code FC_5 and five blinks on

the LED indicator. This feature protects devices connected to

the transfer switch by shutting the generator down if the

engine runs slower than the preset limit.

• If the generator output frequency is below 55 Hz for

three seconds, the generator will shut down.

This condition is caused by a failed engine governor or by

excessive loads on the generator. To remedy the problem,

you may need to contact your installer or local service center

for assistance.

Engine Overspeed

This fault is indicated by fault code FC_6 and six blinks on

the LED indicator. This feature protects devices connected to

the transfer switch by shutting the generator down if the

engine happens to run faster than the preset limit. The

overspeed fault is detected as follows:

• If the generator output frequency is 65-70 Hz, after

three seconds, the generator will shut down.

• If the generator output frequency is greater than 70 Hz,

the generator will shut down instantly.

This condition is caused by a failed engine governor. To

remedy the problem, you should contact your installer or

local service center for assistance.

Oil Temperature High

This fault is indicated by fault code FC_7 and seven blinks on

the LED indicator. The contacts of the temperature switch

(Figure 4) are normally open. If the engine oil temperature

exceeds approximately 140°C (284°F), the fault is detected

and the engine shuts down.

Common causes for this condition include running the unit

with all access doors removed, obstructed air inlet or

exhaust port, low oil level, or debris in the engine cylinder

cooling fins.

To resolve the problem, remove any accumulated debris and

obstructions and let the engine cool down. Ensure that the

Oil Service door and/or the Control Panel door is installed

whenever the unit is running.

Transfer Switch Fault

This fault is indicated by fault code FC_8 and eight blinks on

the LED indicator (if transfer switch is equipped with fault

detection).

To remedy the problem, you should contact your installer or

local service center for assistance.

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Maintenance

The generator warranty does not cover items that have been

subjected to operator abuse or neglect. To receive full value

from the warranty, the operator must maintain the system as

instructed in the engine operator’s manual.

All adjustments should be made at least once each season.

Follow the requirements in the engine operator’s manual.

Generator maintenance consists of keeping the unit clean.

Operate the unit in an environment where it will not be

exposed to excessive dust, dirt, moisture or any corrosive

vapors. Cooling air louvers on the enclosure must not

become clogged with snow, leaves, or any other foreign

material.

Check the cleanliness of the unit frequently and clean when

dust, dirt, oil, moisture or other foreign substances are

visible on its exterior/interior surface.

NOTE: DO NOT use direct spray from a garden hose to clean

generator. Water can enter the engine and generator and

cause problems.

Changing Engine Oil

• Place the oil drain tube into an approved container.

• Push in and rotate the oil drain fitting 1/4 turn

counterclockwise. Slowly pull outward until oil starts

draining (Figure 5). Do Not pull the oil drain fitting off

the engine.

• When the oil has drained, push the oil drain fitting in

and rotate 1/4 turn clockwise until it locks in place.

• Slide the oil drain tube up into the clamp on the

generator panel.

To fill your engine with oil:

• Follow the synthetic oil grade recommendation and oil

fill instructions given in the engine operator’s manual.

Cleaning the Generator

• Use a damp cloth to wipe exterior surfaces clean.

• Use a soft, bristle brush to loosen caked on dirt, oil,

etc.

• Use a vacuum cleaner to pick up loose dirt and debris.

• Use low pressure air (not to exceed 25 psi) to blow

away dirt. Inspect cooling air slots and openings on the

generator. These openings must be kept clean and

unobstructed.

When Calling the Factory

You must have the following information at hand if it is

necessary to contact a local service center regarding service

or repair of this unit:

1. Obtain the unit Model Number and Serial Number from

the unit data decal. See Controls for location.

2. Obtain the engine Model/Type/Code numbers from the

engine label. See Controls for location. Please note that

the model number may vary slightly from that

presented herein.

Storage

The Rheem / Ruud Home Generator System is designed for

continuous backup operational duty. As such, there is no

need to take any storage precautions. However, if it becomes

necessary to take the system out of service for an extended

period, call Technical Services at (877) 369-9400, between

8:00 AM and 5:00 PM CT for specific recommendations.

• Refer to engine manual for oil fill information.

• Damage to equipment resulting from failure to follow this

instruction will void warranty.

NOTICE

Any attempt to crank or start the engine before it has been

properly serviced with the recommended oil will result in

equipment failure.

• Do not expose generator to excessive moisture, dust, dirt, or

corrosive vapors.

• Do not insert any objects through cooling slots.

NOTICE

Improper treatment of generator can damage it and shorten

its life.

Figure 5 — Oil Drain Fitting

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Troubleshooting

Problem Cause Correction

Engine is running, but no AC output is

available.

1. Circuit breaker open or defective.

2. Fault in generator.

3. Poor wiring connections or

defective transfer switch.

1. Reset or replace circuit breaker.

2. Contact local service facility.

3. Check and repair.

Engine runs good at no-load but "bogs

down" when loads are connected.

1. Short circuit in a connected load.

2. Generator is overloaded.

3. Shorted generator circuit.

4. Fuel Pressure is incorrect.

5. Natural gas fuel mixture is

incorrect.

1. Disconnect shorted electrical load.

2. See Essential Circuits.

3. Contact local service facility.

4. See The Gaseous Fuel System in

the Installation Manual.

5. See The Gaseous Fuel System in

the Installation Manual.

Engine will not start; or starts and runs

rough.

1. 15 Amp fuse missing or blown.

2. Out of fuel.

3. Failed battery.

1. Install (new) 15 Amp fuse. See

Controls.

2. Open fuel valve(s); check propane

tank.

3. Replace battery.

Engine shuts down during operation.

1. Out of fuel.

2. Fault indicator blinking.

1. Check fuel valves, fill propane tank.

2. Count blinks and refer to Fault

Detection System.

Loss of power on essential circuits.

1. Generator circuit breaker is open.

2. Transfer switch problems.

1. Reset circuit breaker.

2. See the transfer switch manual.

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Warranty

PROTECH™ Residential Standby Generators

Models: GEN12S GEN15S GEN20B GEN25B GEN30B

SCOPE of WARRANTY:

· This Limited Warranty provides that a replacement will be furnished for any part of the product which fails in normal use and service during the

Applicable Warranty Period specified, in accordance with the warranty’s terms. The replacement part is warranted for only the unexpired portion of the

original Applicable Warranty Period.

EXCEPTIONS:

· Commercial applications are not covered.

· Units installed as prime power source are not covered.

· Installations for the purpose of life support situations are not covered.

EFFECTIVE DATE of WARRANTY COVERAGE:

The Effective Date is the date of installation if properly documented; otherwise it is the date of manufacture plus six (6) months.

APPLICABLE WARRANTY PERIODS for VARIOUS PARTS:

All Residential Standby Generator Parts are warranted for an Applicable Warranty Period of Four (4) YEARS or 1500 operating hours, whichever occurs

first, after the Effective Date, except for the following specified product parts.

Transfer Switches - Transfer Switches (TS-100 and TS-200)carry a 3 year warranty for all parts.

Engine - The Briggs & Stratton engine warranty is covered by the manufacturer. Refer to Vanguard manual MS-3235

STANDARD PROVISIONS and CONDITIONS:

EXCLUSIONS - THIS WARRANTY WILL NOT APPLY: a) to damages, malfunctions or failures resulting from failure to properly install, operate or maintain the

unit in accordance with the manufacturer’s instructions provided; b) to damages, malfunctions or failures resulting from abuse, accident, fire, flood and

the like; c) to parts used in connection with normal maintenance, such as adjustments, fuel system cleaning and obstruction due to chemical, dirt,

carbon, lime and so forth; d) to units which are not installed in the United States of America or Canada; e) to units which are not installed in accordance

with applicable local codes, ordinances and good trade practices; f) to damages, malfunctions or failures caused by the use of any attachment,

accessory or component not authorized by the manufacturer; g) to wear items such as oil gauges, o-rings, filters fuses, or spark plugs etc.

SHIPPING COSTS: This Warranty does NOT cover shipping costs. You will be responsible for the cost of shipping warranty replacement parts from our factory

to our distributor and from the distributor to the location of your product. You also are responsible for any shipping cost of returning the failed part to

the distributor.

SERVICE LABOR RESPONSIBILITY: This Warranty does NOT cover any labor expenses for service, NOR for removing or reinstalling parts. All such expenses

are your responsibility, unless a service labor agreement exists between you and your contractor.

HOW TO OBTAIN WARRANTY PERFORMANCE: You must promptly report any failure covered by this warranty to the installing contractor or distributor.

Normally, the installing contractor from whom the unit was purchased will be able to take the necessary corrective action by obtaining through his

distributor any replacement parts. If the contractor is not available, simply contact any other local contractor handling RHEEM, RUUD or PROTECH air

conditioning products. The name and location of a local contractor can usually be found in your telephone directory or by contacting a RHEEM, RUUD

or PROTECH air conditioning distributor. If necessary, the following office can advise you of the nearest distributor:

4744 Island Ford Road, Randleman, NC 27317

HOWEVER, ANY REPLACEMENTS ARE MADE SUBJECT TO VALIDATION OF IN-WARRANTY COVERAGE. An item to be replaced must be made available

in exchange for the replacement.

EXCLUSIVE WARRANTY - LIMITATION OF LIABILITY:

This Limited Warranty is the ONLY warranty for the unit given by the manufacturer. No one is authorized to make any warranties on their behalf. ANY

IMPLIED WARRANTIES, INCLUDING MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, SHALL NOT EXTEND BEYOND THE

APPLICABLE WARRANTY PERIODS SPECIFIED ABOVE. RHEEM’S SOLE LIABILITY WITH RESPECT TO DEFECTIVE PARTS OR FAILURES SHALL BE AS

SET FORTH IN THIS LIMITED WARRANTY, AND ANY CLAIMS FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES ARE EXPRESSLY EXCLUDED. Some

states do not allow limitations on how long an implied warranty lasts, or for the exclusion of incidental or consequential damages, so the above

limitation or exclusion may not apply to you. This Limited Warranty gives you specific legal rights, and you may also have other rights which vary from

state to state. 202249E, Rev. -, 12/20/2006

RHEEM SALES COMPANY

Randleman NC

“In the spirit of continuous improvement, we reserve the right to make changes without notice.”

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