Simplicity OPERATOR'S MANUAL RHEEM 12'15'18'20KW STANDBY MODELS- 040254A 040255A 040267A 040268A Manuel utilisateur

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Taper
Manuel utilisateur

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Help is just a moment away!
Call: Generator Helpline
877-369-9400 M-F 8-5 CT
Residential
Generator Systems
Operator’s Manual
GEN12AD, GEN15AD, GEN20AD
Not for
Reproduction
Thank you for purchasing this quality-built Rheem / Ruud 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 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 original instructions for future reference.
This 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 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.
Generator and engine model and serial numbers should be recorded in the installation manual.
Rheem Manufacturing Company
Randleman, NC 27317
877-369-9400
Copyright © 2010 Rheem Manufacturing Company. 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
Rheem Manufacturing Company.
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Table of Contents
Important Safety Instructions........................4
Installation ....................................7
Owner Orientation ............................................7
Fuel Factors .................................................8
Delivery Inspection............................................9
Controls ..................................... 10
Residential Generator.........................................10
System Control Panel.........................................11
Access Ports ...............................................12
Operation .................................... 12
Engine Oil..................................................12
Battery ....................................................12
15 Amp Fuse ...............................................13
Automatic Operation .........................................13
Setting Exercise Timer ........................................13
Maintenance .................................. 14
Fault Detection System .......................................14
Engine Oil..................................................16
Battery ....................................................16
Cleaning the Generator........................................17
Troubleshooting................................ 18
Warranty..................................... 19
Product Specifications ........................... 20
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Important Safety Instructions
SAVE THESE INSTRUCTIONS - This manual contains
important instructions that should be followed during
installation and maintenance of the generator and batteries.
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 generator system unsafe.
Explosion
Fire
Electrical Shock
Rotating Parts
Hot Surface
Toxic Fumes
Chemical BurnExplosive PressureAuto Start
Lift Hazard
Read Manual
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.
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 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.
DO NOT dispose of battery in a fire. Recycle battery.•
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, rubber boots and •
rubber gloves.
Remove watches, rings, or other metal objects.•
Use tools having insulated handles.•
WARNING The engine exhaust from this product
contains chemicals known to the State of California to
cause cancer, birth defects, or other reproductive harm.
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.
Save These Instructions
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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.
When using generator for backup power, notify •
utility company.
DO NOT touch bare wires or bare 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 the risk of a
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 generator, 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 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 Propane and Natural Gas are extremely
flammable and explosive.
Fire or explosion can cause severe burns
or death.
Install the fuel supply system according to NFPA 37 and •
other applicable fuel-gas codes.
Before placing the generator 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 Contact with muffler area can result in
serious burns.
Exhaust heat/gases can ignite combustibles
or structures causing a fire.
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 minimum distances shown in • General
Location Guidelines to insure for proper generator cooling
and maintenance clearances.
It is a violation of California Public Resource Code, •
Section 4442, to use or operate the engine on any forest-
covered, brush-covered, or grass-covered land unless
the exhaust system is equipped with a spark arrester, as
defined in Section 4442, maintained in effective working
order. Other states or federal jurisdictions may have
similar laws.
Contact the original equipment manufacturer, retailer, or
dealer to obtain a spark arrester designed for the exhaust
system installed on this engine.
Replacement parts must be the same and installed in the •
same position as the original parts.
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NOTICE Improper treatment of generator can damage it
and shorten its life.
Use generator only for intended uses.•
If you have questions about intended use, contact your •
authorized dealer.
Operate generator only on level surfaces.•
Adequate, unobstructed flow of cooling and ventilating air •
is critical to correct generator operation.
The Oil Fill, 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 generator, 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 Exceeding generators wattage/amperage
capacity can damage generator and/or electrical devices
connected to it.
Start generator and let engine stabilize before connecting •
electrical loads.
WARNING Starter and other rotating parts can
entangle hands, hair, clothing, or accessories.
NEVER operate generator without protective housings, •
covers, or guards in place.
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.•
Before servicing, remove 15 Amp fuse from control panel •
and disconnect Negative (NEG or -) battery cable.
CAUTION Installing the 15A fuse could cause the
engine to start.
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 Excessively high operating speeds increase
risk of injury and damage to generator.
Excessively low speeds impose a heavy load on generator.
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.•
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7
Installation
We sincerely appreciate your patronage. For this reason, we
have 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 professionals should attempt residential
generator system installations. Installations must strictly
comply with all applicable codes, industry standards
and regulations.
Your residential generator 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 Owner Orientation in this manual before
contracting or starting your generator installation.
To arrange for proper installation, contact the store at which
you purchased your residential generator, your dealer, a
licensed electrician or your utility power provider.
The residential generator warranty is VOID unless
the system is installed by licensed electrical and
plumbing professionals.
Every effort has been made to ensure that information in this
manual is accurate and current. However, we reserve the
right to change, alter, or otherwise improve the product and
this document at any time without prior notice.
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).
For the Installing Dealer/Contractor:
For most applications, the installation manual contains all
the information required to properly install and start the
residential generator. This operator’s manual describes
routine operation and owner maintenance procedures.
If you need more information in this matter, please call at
877-369-9400 between 8:00 AM and 5:00 PM CT.
Owner Orientation
This section provides residential generator owners with the
information necessary to achieve the most satisfactory and
cost effective installation possible.
The illustrations are for typical circumstances and are meant
to familiarize you with the installation options available with
your residential generator. 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, and the number of 90 degree
bends in the fuel supply increases, compensations in piping
and wiring materials must be made. 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 residential generator installation.
In some areas you may need to acquire electrical permits
for installing the residential generator, building permits for
installing gas lines, and permits for noise allowances. Your
installer should check your local codes AND obtain the
permits before installing the system.
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Fuel Factors
An important consideration affecting the entire installation
is the type of fuel used by your residential generator.
The system was factory tested and adjusted using either
natural gas or liquid propane (LP vapor). For proper engine
function, factors that are inherent to each of these fuels, your
location and the duration of possible utility interruptions are
important considerations in the following fuel guidelines:
 • 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),commercial
grade HD5 propane with a minimum fuel energy of
2500 BTUs/ft
3
with maximum propylene content of
5% and butane and heavier gas content of 2.5% and
minimum propane content of 90%.
Natural gas rating will depend on specific fuel but typical
derates are between 10 to 20% off the LP gas rating.
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 residential generator 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.
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.
The generator must be installed outdoors. 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. Prevailing winds and air
currents should be taken into consideration when positioning
generator. See the installation manual for full details on safe
generator location.
WARNING Exhaust heat/gases can ignite
combustibles or structures causing a fire.
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.
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.
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 Propane and Natural Gas are extremely
flammable and explosive.
Fire or explosion can cause severe burns
or death.
The generator 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.
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Delivery Inspection
Carefully inspect the residential generator for any damage
that may have occurred during shipment.
If loss or damage is noted at time of delivery, have the
person(s) making delivery note all damage on the freight
bill and affix his signature under the consignor’s memo of
loss or damage. If loss or damage is noted after delivery,
separate the damaged materials and contact the carrier and
your installer for claim procedures. Missing or damaged
parts are not warranted.
The residential generator is supplied with:
 • Pre-attachedmountingpad
 • Fully-servicedoil/lubricatingsystem
 • Flexiblefuelhook-uphose
 • Installationandstart-upmanual
 • Operator’smanual
 • Engineoperator’smanual
 • Installationchecklist
 • Spareaccessdoorkeys
 • Spare15Afuse
 • Twopinconnectorplug
 • Tenpinconnectorplug
 • Touchuppaint
 • RemoteLEDindicatorkit(LED/plate/screws)
To be supplied by Installer:
 • Startingbattery
 • Connectingwireandconduit
 • Fuelsupplyvalves/plumbing
 • Variousspecialtytools/equipment
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Controls
Residential Generator
Read this Operator’s Manual and Important Safety Instructions 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.
Generator is shown with access covers removed for clarity.
Features are similar in location for all generators.
A - Exhaust Port High-performance muffler lowers engine
noise to comply with most residential codes.
B - Oil Dip Stick — Used to check the engine oil level.
C - Oil Fill Cap — Remove to service the engine with
recommended oil.
D - Air Cleaner Protects engine by filtering dust and
debris out of intake air.
E - Oil FilterFilters engine oil to prolong system life.
F - Oil Drain Hose — Provided to facilitate oil changing.
G - Oil Drain Door opening — Provides access for
engine servicing.
H - Oil Fill Door opening — Provides access for
engine servicing.
J - Engine Label Identifies engine model and type.
K - Fuel InletFuel supply is connected here.
L - Control Panel Door opening — Provides access to
control panel and battery.
M - Unit ID Label (located on base) — Identifies unit by
serial number.
N - Battery (installer-supplied) 12 Volt DC sealed battery
provides power to start the engine.
P - Control Panel Used for various test, operation and
maintenance functions. See System Control Panel.
B
A
C
D E F
M
G
HJKLN
P
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System Control Panel
Compare this control panel illustration with your generator to familiarize yourself with the location of these important controls:
A - SET EXERCISE Used to set the exercise cycle start
time and day-of-the-week. Exercise cycle only occurs in
AUTO mode.
B - MANUAL OVER-RIDE 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.
C - 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, AUTO lets
the engine stabilize internal temperatures, shuts off the
generator, and waits for the next utility power outage.
•OFFposition turns off running generator, prevents
unit from starting and resets any detected faults.
D - 15 Amp Fuse — Protects the residential generator 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.
E - Digital Display Displays the total number of hours
the generator has been running and fault codes. Used
to schedule maintenance tasks and for troubleshooting
operational problems with the residential generator. A
constant number displayed indicates the total hours of
operation. Fault conditions will flash “FC” followed by a
fault code number. All fault conditions are described in
Fault Detection System.
F - Circuit Breaker Protects the system from shorts and
other over-current conditions. Must be ON to supply
power to the Automatic Transfer Switch.
B
A
C
D
E
F
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Access Ports
The residential generator is equipped with an enclosure
that has several access doors. The doors are named for a
significant component located behind them, as follows:
A Control Panel door
B Fuel Inlet Port (shown for reference)
C Oil Drain door
D Oil Fill door
E Exhaust Port (shown for reference)
The oil and control panel doors must be installed whenever
the unit is running to assure proper cooling, reduce noise,
and for added safety.
Each residential generator is suppied with a set of identical
keys. These keys fit the locks that secure the access doors.
To open access door:
1. Insert key into lock of access door handle and turn key
one quarter turn counterclockwise.
2. Grasp door’s handle and turn one quarter turn
counterclockwise to open. Remove key.
To close access door:
1. Close door and turn door’s handle one quarter
turn clockwise.
2. Insert key into lock of door handle and turn key one
quarter turn clockwise. Remove key.
Operation
Important Owner’s Considerations
Engine Oil
The engine is shipped from the factory pre-run and filled
with synthetic oil (API SJ/CF 5W-30). This allows for system
operation in a wide range of temperature and climate
conditions. Before starting the engine, check oil level and
ensure that engine is serviced as described in the engine
operator’s manual.
Battery
The installer must supply a valve-regulated, rechargeable
12 volt DC starting battery. See Battery in Final Installation
Considerations in the installation manual. Installer
must connect battery charge wire (wire #13) to positive
battery terminal!
With the battery installed, all wiring to transfer switch and
generator 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 charge cannot be used to recharge a battery that is
completely discharged.
WARNING Contact with muffler and engine parts can
result in serious burns.
DO NOT touch hot parts and AVOID hot exhaust gases.•
Allow equipment to cool before touching.•
NOTICE Any attempt to crank or start the engine before
it has been properly serviced with the recommended oil
will result in equipment failure.
Refer to • Maintenance in the Operator’s Manual and engine
manual for oil fill information.
Damage to equipment resulting from failure to follow this •
instruction will void engine and generator warranty.
B
A C D E
WARNING Battery posts, terminals and related
accessories contain lead and lead compounds,
chemicals known to the State of California to
cause cancer and reproductive harm. Wash hands
after handling.
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15 Amp Fuse
The generator’s 15 Amp fuse is critical to correct system
operation. The 15 Amp fuse was removed at the factory to
prevent the unit from starting during shipping. Your installer
will ensure the fuse is properly installed upon completion of
the installation.
Automatic Operation
To select automatic operation, do the following:
1. Confirm 15 Amp fuse is installed in control panel.
2. Set the main distribution panel circuit breaker that
sends utility voltage to the transfer switch to ON.
3. Set the generator’s circuit breaker to its ON position.
4. Set the control panel 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.
When utility voltage is lost and the sensor has timed
out, the engine will crank and start. 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 utility power after a 5 minute minimum run time and
utility power is available.
4. The generator will run for an additional one minute for
engine cool down, then shut down.
If utility power 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 residential generator will now start automatically and
will supply power to the transfer switch when utility power
is lost.
Setting Exercise Timer
The residential generator 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 during the cycle).
A button on the control panel is labeled “SET EXERCISE”
(see System Control Panel). The specific day and the
specific time of day this button is pressed is programmed
into the control board memory. This date and time is then
used to automatically initiate the system exercise cycle. The
“SET EXERCISE” legend on the control panel will flash until
the set exercise cycle is set.
To perform the Set Exercise procedure:
1. Choose the day and time you want your residential
generator to exercise.
2. On that day and time, press and hold down
“SET EXERCISE” for three seconds.
“SET EXERCISE” will flash until the button is pressed
for three seconds, then “SET EXERCISE” will illuminate
for 5 seconds, and finally turn off. The SET EXERCISE
date and time are now ‘locked-in’ (registered in
system memory).
3. Certain models will immediately start and run their
20 minute exercise cycle. Other models will initiate
the 20 minute exercise cycle seven days after the
SET EXERCISE date and time is ‘locked-in’.
For example, if you press SET EXERCISE on Sunday morning
at 10:00 AM, the unit is set to run an exercise cycle every
Sunday at 10:00 AM (+/- 1/2 hour).
“Set Exercise” will only work if the unit is in the AUTO 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 starting 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.
CAUTION With the system switch set to AUTO,
the engine may crank and start at any time
without warning.
To prevent possible injury that may be caused by such •
sudden starts, always set the system switch to OFF if
performing maintenance on the system.
Remove the 15 Amp fuse before working on or around •
the generator or transfer switch.
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Maintenance
Servicing the System
Before performing any generator maintenance, always
perform the following steps:
1. Set generator’s circuit breaker to its OFF position.
2. Set control panel system switch to OFF.
3. Remove 15 Amp fuse from control panel.
4. Utility voltage is present at generator control panel.
Disconnect power before servicing control panel by
removing the fuses from the transfer switch.
5. After all servicing has been completed, replace fuses in
transfer switch, replace 15 Amp fuse in control panel,
set system switch and circuit breaker ON and reset
exercise timer. See Setting Exercise Timer.
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 temperature, over speed, and
other conditions.
The generator’s control panel has a digital display that shows
fault codes, like “FC_1”. The table below lists the detected
fault, the fault code as displayed on the control panel, and
the number of LED flashes (also described as ‘blinks’) seen
on the remote LED indicator.
Fault Description Fault Codes LED Flashes
Low battery voltage FC_1 1
Low oil pressure FC_2 2
Low voltage FC_3 3
Engine does not start FC_4 4
Low frequency FC_5 5
Engine overspeed FC_6 6
High temperature FC_7 7
Transfer switch fault FC_8 8
The remote LED indicator is installed at a convenient inside
location. The LED will remain lit when the generator is in
AUTO. Should a system fault be detected, the LED will turn
on and off in a series of blinks that identify the problem. The
blink pattern is repeated with a brief pause between each
series of blinks.
Reset Fault Detection System
The operator must reset the fault detection system each
time it activates. To do so, place the control panel system
switch in the OFF position for 30 seconds or more. Remedy
the fault condition, then return the residential generator to
service by placing the system switch in the AUTO position,
installing the 15 Amp fuse, and resetting the exercise timer.
See Setting Exercise Timer in Operation.
A description of each fault and suggested remedies are
as follows:
No LED - Discharged Battery
If there is a detected fault condition but the LED is
not blinking, this is because the battery is completely
discharged. 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. Reinstall
battery after it has been fully recharged, connecting the
NEGATIVE cable last. Then reset the fault detection system,
as described earlier.
Low Battery Voltage (FC_1)
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 battery charge circuit.
To remedy the problem, contact your local service center to
check the battery charge output. Remove the 15 Amp fuse
and disconnect the battery from the generator. Take the
battery to a local battery store for analysis.
Reinstall the battery (replace if necessary - see Battery in
Final Installation Considerations in the installation manual).
Then reset the fault detection system, as described earlier.
Low Oil Pressure (FC_2)
This fault is indicated by fault code FC_2 and two blinks on
the remote LED indicator. The unit is equipped with an oil
pressure switch that uses normally closed contacts 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 the low oil pressure condition still exists, the engine will
start, then shut down again. The fault code will appear and
the LED will flash. In this case, contact an authorized dealer.
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15
Low Voltage (Generator, FC_3)
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 the generator is overloaded.
To remedy the problem, contact your installer or an
authorized dealer.
Engine Does Not Start (FC_4)
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, 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 circuit breaker is in the
ON 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 internal and external 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 (FC_5)
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 55 Hz for three seconds.
This condition is caused by a failed engine component or by
excessive loads on the generator. To remedy the problem,
contact your installer or an authorized dealer.
Engine Overspeed (FC_6)
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 immediately.
This condition is caused by a failed engine component.
To remedy the problem, contact your installer or an
authorized dealer.
High Temperature (FC_7)
This fault is indicated by fault code FC_7 and seven blinks
on the LED indicator. The contacts of the temperature
switch are normally open. If the engine temperature exceeds
approximately 149°C (300°F), the fault is detected and the
engine shuts down.
Common causes for this condition include running the
unit with access doors removed, obstructed air inlet or
exhaust port, low oil level, or debris in the engine cylinder
cooling fins.
To resolve the problem, let the engine cool down and remove
any accumulated debris and obstructions. Ensure that all
access doors are installed whenever the unit is running.
Transfer Switch Fault (FC_8)
This fault is indicated by fault code FC_8 and eight blinks
on the LED indicator (if transfer switch is equipped with
fault detection).
The most likely cause of this fault is a blown fuse in the
transfer switch. To remedy the problem, contact your
installer or an authorized dealer.
Generator 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. To prevent generator damage caused by
overheating, keep the enclosure cooling inlets and outlets
clean and unobstructed at all times.
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. Inspect the air inlet
and outlet openings inside and outside the enclosure to
ensure air flow is not blocked.
DO NOT use direct spray from a garden hose to clean
generator. Water can enter the engine and generator and
cause problems.
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16
Engine Oil
The engine is filled with synthetic oil (API SJ/CF 5W-30).
This allows for system operation in the widest range of
temperature and climate conditions.
The use of synthetic oil does not alter the required oil change
intervals described in the engine operator’s manual.
Changing Engine Oil
KEEP OUT OF REACH OF CHILDREN. DON’T
POLLUTE. CONSERVE RESOURCES. RETURN USED
OIL TO COLLECTION CENTERS.
1. Set control board system switch to OFF.
2. Remove 15 Amp fuse from control panel.
3. Place oil drain hose into an approved container.
4. Remove brass fitting from end of drain hose.
Shown here is the oil drain hose (B) and the oil filter location
(A) for the 12 kW generator:
Shown here is the oil drain hose (B) and the oil filter location
(A) for the 15 kW, 18 kW & 20kW generators:
Change oil while the engine is still warm from running, as
described in the engine operator’s manual.
5. When oil has drained, replace brass fitting on hose.
6. Add oil. See next section.
To fill your engine with oil:
Follow the synthetic oil grade recommendation and oil fill
instructions given in the engine operator’s manual.
If all engine servicing is complete, replace 15 Amp fuse in
control panel and reset exercise timer. See Setting Exercise
Timer in Operation.
Battery
Servicing of batteries is to be performed or supervised
by personnel knowledgeable of batteries and the
required precautions. Keep unauthorized personnel away
from batteries.
Servicing the Battery
If it is necessary to service the battery, proceed as follows:
1. Set control board system switch to OFF.
2. Remove 15 Amp fuse from control panel.
3. Service or replace battery as required. See Battery
in Final Installation Considerations in the installation
manual for specific battery needed.
4. Connect red battery cable to battery positive terminal
(indicated by POSITIVE, POS, or (+)).
5. Connect the battery charge wire (wire #13) shown
as (C) to the battery positive terminal (indicated by
POSITIVE, POS, or (+):
CAUTION Avoid prolonged or repeated skin contact
with used motor oil.
Used motor oil has been shown to cause skin cancer in •
certain laboratory animals.
Thoroughly wash exposed areas with soap and water.•
WARNING Battery posts, terminals and related
accessories contain lead and lead compounds,
chemicals known to the State of California to
cause cancer and reproductive harm. Wash hands
after handling.
NOTICE Any attempt to crank or start the engine before
it has been properly serviced with the recommended oil
will result in equipment failure.
Refer to • Maintenance in the Operator’s Manual and engine
manual for oil fill information.
Damage to equipment resulting from failure to follow this •
instruction will void engine and generator warranty.
A
B
C
A
B
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17
6. Connect black negative battery cable to negative battery
terminal (indicated by NEGATIVE, NEG, or (-).
7. Ensure hardware on both positive and negative battery
terminals is secure.
8. Reinstall 15 Amp fuse in control panel.
9. Set generator’s system switch to AUTO.
10. Reset exercise timer. See Setting Exercise Timer.
DON’T POLLUTE. CONSERVE RESOURCES,
RETURN USED BATTERY TO RECYCLING
COLLECTION CENTER.
Charging the Battery
If it is necessary to charge the battery, proceed as follows:
1. Set control board system switch to OFF.
2. Remove 15 Amp fuse from control panel.
3. Disconnect negative battery cable from negative battery
terminal (indicated by NEGATIVE, NEG, or (-).
4. Charge battery with battery charger at 2 Amps until
battery holds 12 Volts. DO NOT exceed 13.7 volts
when charging.
5. Connect negative battery cable to negative battery
terminal (indicated by NEGATIVE, NEG, or (-)).
6. Ensure hardware on both positive and negative battery
terminals is secure.
7. Reinstall 15 Amp fuse in control panel.
8. Set generator’s system switch to AUTO.
9. Reset exercise timer. See Setting Exercise Timer.
Cleaning the Generator
1. Set control board system switch to OFF.
2. Remove 15 Amp fuse from control panel.
3. Clean generator as desired.
 • Useadampclothtowipeexteriorsurfacesclean.
 • Useasoft,bristlebrushtoloosencakedondirt,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.
4. Reinstall 15 Amp fuse in control panel.
5. Set generator’s system switch to AUTO.
6. Reset exercise timer. See Setting Exercise Timer.
NOTICE Failure to disconnect negative battery cable will
result in equipment failure.
DO NOT attempt to jump start the generator.•
Damage to equipment resulting from failure to follow this •
instruction will void engine and generator warranty.
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.
DO NOT dispose of battery in a fire. Recycle battery.•
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, rubber boots and •
rubber gloves.
Remove watches, rings, or other metal objects.•
Use tools having insulated handles.•
NOTICE Improper treatment of generator can damage it
and shorten its life.
DO NOT expose generator to excessive moisture, dust, •
dirt, or corrosive vapors.
DO NOT insert any objects through cooling slots.•
CAUTION With the system switch set to AUTO,
the engine may crank and start at any time
without warning.
To prevent possible injury that may be caused by such •
sudden starts, always set the system switch to OFF if
performing maintenance on the system.
Remove the 15 Amp fuse before working on or around •
the generator or transfer switch.
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Problem Cause Correction
En gine 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.
En gine 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.
6. Kinked fuel line between regulator
and engine.
1. Disconnect shorted electrical load.
2. Turn off one or more loads.
3. Contact local service facility.
4. See Gaseous Fuel System in the
Installation Manual.
5. See Gaseous Fuel System in the
Installation Manual.
6. Remove kink in fuel line. Replace
if necessary.
En gine will not start; or starts and
runs rough.
1. 15 Amp fuse missing or blown.
2. Fuel supply turned off or depleted.
3. Failed battery.
1. Install (new) 15 Amp fuse. See
System Control Panel.
2. Open fuel valve(s); check
propane tank.
3. Replace battery.
Engine shuts down during operation.
1. Fuel supply turned off or depleted.
2. Fault indicator blinking.
1. Check fuel valves, fill propane tank.
2. Count blinks and refer to Fault
Detection System.
Loss of power on circuits.
1. Generator circuit breaker is open.
2. Transfer switch problems.
1. Reset circuit breaker.
2. See the transfer switch manual.
Troubleshooting
When Calling for Assistance
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 ID label. See Controls for location of the label
or refer to the information recorded on the inside front
cover of the installation manual.
2. Obtain the engine identification numbers from the
engine label. See the engine operator’s manual for
location of this information. Please note that several
different engines are described in the engine manual,
so your engine may vary from that shown.
Storage
The Rheem / Ruud residential generator system is designed
for continuous backup operational duty. 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.
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19
Warranty
PROTECH™ Residential Standby Generators
Models: GEN10AD GEN12AD GEN15AD GEN18AN GEN20AL
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
Warranty Period specified, in accordance with the warranty’s terms. The replacement part is warranted for only the unexpired portion of the original
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
· The GEN10AD Residential Standby Generators are warranted for Period of Three (3) YEARS or 1250 operating hours, whichever occurs first.
· The GEN12AD, GEN15AD, GEN18AN, GEN20AL Residential Standby Generators are warranted for a Period of Four (4) YEARS or 1500 operating hours,
whichever occurs first.
· Transfer Switch and Engine warranties are provided by the manufacturer. Refer to the respective manual.
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.
Limited Warranty:
There is no other expressed warranty. Implied warranties, including those of merchantability and fitness for a particular purpose, are limited
to one year from purchase, or to the extent permitted by law and all implied warranties are excluded. Liability for incidental or consequential
damages are excluded to the extent exclusion is permitted by law. Some state or countries do not allow limitations on how long an implied warranty
lasts, and some states or countries do not allow the exclusion or limitation of incidental or consequential damages, so the above limitation and
exclusion may not apply to you. This warranty gives you specific legal rights and you may also have other rights which vary from state to state and
country to country. 202249E, Rev. D, 10/16/2009
RHEEM SALES COMPANY
Randleman NC
“In the spirit of continuous improvement, we reserve the right to make changes without notice.”
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20
Residential Generator Systems
This generator is rated in accordance with UL (Underwriters Laboratories) 2200 (stationary engine generator assemblies) and CSA (Canadian Standards
Association) standard C22.2 No. 100-04 (motors and generators).
Product Specifications
GEN12AD
Rated Maximum Load Current* (at 25°C/77°F, LP)*:
at 240 Volts ..........................................................50 Amps
Rated AC Voltage .............................................120/240 Volts
Phase ................................................................. Single phase
Rated Frequency .......................................................60 Hertz
Normal Operating Range ... -20°F (-28.8°C) to 104°F (40°C)
Output Sound Level ..65 dB(A) at 23 ft. (7 m) at normal load
Shipping Weight ............................................530 lb (239 kg)
GEN15AD
Rated Maximum Load Current* (at 25°C/77°F, LP)*:
at 240 Volts .......................................................62.5 Amps
Rated AC Voltage .............................................120/240 Volts
Phase ................................................................. Single phase
Rated Frequency .......................................................60 Hertz
Normal Operating Range ... -20°F (-28.8°C) to 104°F (40°C)
Output Sound Level ..65 dB(A) at 23 ft. (7 m) at normal load
Shipping Weight ............................................600 lb (272 kg)
GEN20AD
Rated Maximum Load Current* (at 25°C/77°F, LP)*:
at 240 Volts .......................................................83.3 Amps
Rated AC Voltage .............................................120/240 Volts
Phase ................................................................. Single phase
Rated Frequency .......................................................60 Hertz
Normal Operating Range ... -20°F (-28.8°C) to 104°F (40°C)
Output Sound Level ..68 dB(A) at 23 ft. (7 m) at normal load
Shipping Weight ............................................575 lb (260 kg)
* Natural gas rating will depend on specific fuel but typical derates are
between 10 to 20% off the LP gas rating.
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Simplicity OPERATOR'S MANUAL RHEEM 12'15'18'20KW STANDBY MODELS- 040254A 040255A 040267A 040268A Manuel utilisateur

Catégorie
Groupes électrogènes
Taper
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