RVMP Flex Power 5000i User manual

OWNER’S MANUAL
RVMP®Flex PowerTM
Dual Fuel Installed Generator
For 4,000 Watt Models: 4000i
RVMP-OEM-4L1-RV401•RVMP-AM-4L1-RV401
For 5,500 Watt Models: 5000i
RVMP-OEM-4L1-RV551•RVMP-AM-4L1-RV551
(Picture shown here is for reference only)
Authorized for Installation ONLY in Recreational Vehicles Prepped by the RV
Manufacturer With Fuel Lines and a Compartment for Permanent Generator Installs.
Do NOT Install in Any Other Application.
Visit rvmp.co • Copyright© 2022 RV Mobile Power, LLC. - All Rights Reserved.
Read this manual carefully before operation.
This manual includes important guidance for safety operation.

TABLE OF CONTENTS
Warranty 3
Introduction 5
General Guidelines 7
The Exhaust Produced By The Generator Is Deadly 7
Gasoline And Propane Are Flammable And Explosive 8
Gas Emitted From Batteries Is Explosive 9
Model Identification 9
Model Specifications 9
Generator Components 12
Removing the Access Cover 12
Generator Components 12
Securing the Access Cover 12
4000i Generator Control Panel 13
5500i Generator Control Panel 14
Remote Operation Panel 15
Operation 15
Breaking in a New Engine 15
Pre-Start Checks 15
Starting the Generator 16
Resetting Overload 17
Stopping the Generator 17
Connecting to Utility Power 18
Loading the Generator 18
Altitude Adjustment 20
Operating in Cold Weather 20
Operating in Hot Weather 20
Hot Ambient Air 21
Ventilation 21
Compartment Door Vents 22
Operating the Generator in a Motorized RV When Not Moving 24
Safe Temperature Operating Range 24
Operating in Dusty Environment 25
Conducting General Inspections 25
Exhaust System 25
Fuel System 26
Battery System 26
Mechanical Systems 26
Checking Engine Oil Level 27
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Trouble Shooting 27
Maintenance 28
Resources and Tools Required 28
More Service Information 28
Maintenance Schedule 29
VFT Meter Service Codes 29
Fuel Recommendations 29
Propane (LP) Requirements 30
Engine Oil Recommendations 30
Starting Batteries 31
Exercising The Generator 31
Storing The Generator 31
Propane (LP) Storage 32
Returning the Generator to Service 33
Cleaning the Air Filter Element 33
Changing the Engine Oil 34
Maintaining the Battery and Battery Connections 35
Replacing the Spark Plug 35
Cleaning the Spark Arrestor 36
Electrical Wiring Diagram 37
RV Mobile Power, LLC Contact Info 40
2

FLEX POWER’S “THREE YEAR” LIMITED WARRANTY
FLEX POWER’S RESPONSIBILITY
RV Mobile Power, LLC (owners of “Flex Power”) warrants to the original purchaser that its Flex Power line of
inverter generators will be free from defects in material and workmanship. Under normal use and
maintenance from the date of purchase, and assuming all instructions for install were properly followed (see
Installation Manual) Flex Power agrees to repair or replace at Flex Power’s discretion, any defective product
free of charge at any authorized Flex Power Service Dealer within the below listed applications, time periods,
limitations, and exclusions. THIS LIMITED WARRANTY IS EXTENDED TO THE ORIGINAL PURCHASER ONLY
AND IS NOT TRANSFERABLE TO SUBSEQUENT OWNERS EXCEPT FOR EMISSION RELATED PARTS. This
warranty is separate from the Emission Control Warranty Statement supplied with your new product. Please
consult the Emission Control Warranty Statement for details regarding emission related parts.
OWNER’S RESPONSIBILITY
To ensure trouble free warranty coverage it is important that you register your generator. You may register
on-line at the links presented below or by filling out and returning to Flex Power the warranty registration
card supplied with your generator. Registering your product confirms your warranty coverage and provides a
direct link between you and Flex Power if we find it necessary to contact you. Please visit www.rvmp.co to
complete your warranty registration information. Specifically for each model:
Model: 4000i
Model: 5500i
https://warranty-gen4kw.rvmp.co
https://warranty-gen55kw.rvmp.co
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Your receipt of purchase including date, model, and serial number must be maintained and presented to a
Flex Power Authorized Service Dealer for warranty service. Proof of purchase rests solely with you,the
original purchaser.
PRODUCT WARRANTY APPLICATIONS AND PRODUCT WARRANTY PERIODS
Consumer Application
For the purpose of this limited warranty “Consumer Application” means usage by the original purchaser for
the purpose of use as an installed power source in recreational vehicles.
Qualifying unit exchange will be covered for a period of (1) year from the date of purchase. Replacement
parts will be covered (2-3) years from the date of purchase.
If proof of purchase is not available to establish the purchase date nor is the equipment registered as
suggested herein, the date of manufacturing as recorded by Flex Power will start the product warranty
period.
Commercial or Rental Applications
For the purpose of this limited warranty “Commercial Application” means usage by the original purchaser for
the purpose of income producing, business related use. Once a generator has been used for income
producing and business related purposes, it shall thereafter be considered a “Commercial Application” and
the warranty as outlined above will apply, with the following additions/changes.
Unit exchange will be covered for a period of (1) year from the date of purchase. Replacement parts will be
covered (2-3) years from the date of purchase. If proof of purchase is not available to establish the purchase
date nor is the equipment registered as suggested herein, the date of manufacturing as recorded by Flex
Power’s will start the product warranty period.
NON-WARRANTABLE APPLICATIONS - THE FLEX POWER LINE OF INVERTER GENERATORS ARE
EXPRESSLY NOT RECOMMENDED FOR NOR WARRANTED FOR THE FOLLOWING APPLICATIONS:
Medical and Life Support Uses – This product is not recommended for and is NOT warranted for the use to
power Medical and Life Support equipment or similar devices.
4

Introduction
The Flex Power line of generators can power various RV appliances including AC motors, air conditioners,
refrigerators, AC/DC converters and many other RV appliances. The load on the generator depends on the
power rating. The generator will shut down or its circuit breaker(s) will trip if the sum of the loads exceeds
the power limit of the generator.
For information on the assembly or individual components of this product, please visit: www.rvmp.co or
email us at [e-mail].
NOTE: Images used in this document are for reference only when assembling, installing and/or operating this
product. Actual appearance of provided and/or purchased parts and assemblies may differ.
Safety
Read and understand all instructions before installing or operating this product. Adhere to all safety labels.
This manual provides general instructions. Many variables can change the circumstances of the instructions,
i.e., the degree of difficulty, operation and ability of the individual performing the instructions. This manual
cannot begin to plot out instructions for every possibility, but provides the general instructions, as
necessary, for effectively interfacing with the device, product or system. Failure to correctly follow the
provided instructions may result in death, serious personal injury, severe product and/or property damage.
Keep multi-class ABC fire extinguishers handy. Class A fires involve ordinary combustible materials
such as wood and cloth. Class B fires involve combustible and flammable liquid fuels and gaseous
fuels. Class C fires involve live electrical equipment.
The "WARNING" symbol above is a sign that a procedure has a safety risk involved and may cause
death or serious personal injury if not performed safely and within the parameters set forth in this
manual.
Failure to follow instructions provided in this manual may result in death, serious personal injury and/or
severe product and property damage, including voiding of the warranty.
Do not operate equipment when mentally or physically fatigued or after consuming alcohol or drugs.
Do not use starting fluids which can cause an explosion and may result in death, serious personal injury
and/or severe product and property damage.
Installing or maintaining a generator can cause severe personal injury when not done correctly. Wear
5

personal protective equipment including safety glasses, hard hats, steel-toed shoes and protective
clothing when working on equipment.
Benzene, found in some fuels, and used engine oils have been identified by some state and federal
authorities to cause cancer or reproductive toxicity. Do not ingest, breathe fumes or come into contact
with gas or oil when checking, draining or adding gas and oil.
Hot, moving and electrically-live parts can result in death, serious personal injury and/or severe
product and property damage. Only trained and experienced personnel should make adjustments while
the generator is running.
Moving parts can catch on loose clothing items or jewelry. Do not wear loose clothing or jewelry near
moving parts including shafts, fans, belts and pulleys. Keep hands away from moving parts. Keep
protective guards in place over fans, belts, pulleys and other moving parts.
Improperly installed electrical connections may result in death, serious personal injury and/ or severe
product and property damage. Electrical connections must be made by trained and experienced
electricians in accordance with applicable NEC or other codes.
Back-feeding to shore power may result in death, serious personal injury and/or severe product and
property damage. The generator must not be connected to shore power or any other source of
electrical power, or any RV with shore power capability, unless an approved switching device is used to
prevent interconnections.
Do not use evaporative starting fluids. They are highly explosive and dangerous.
Operating, servicing, and maintaining this equipment can expose you to chemicals, including engine
exhaust, carbon monoxide, phthalates, and lead, which are known to the State of California to cause
cancer and birth defects or other reproductive harm. To minimize exposure, avoid breathing exhaust,
do not idle the engine except as necessary, service your equipment in a well-ventilated area and wear
gloves or wash your hands frequently when servicing your equipment. For more information go to
www.P65Warnings.ca.gov.
The "CAUTION" symbol above is a sign that a procedure has a safety risk involved and may cause
personal injury, product or property damage if not performed safely and within parameters set forth in
this manual.
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Always wear eye protection when performing service, maintenance or installation procedures.Other
safety equipment to consider would be hearing protection, gloves and possibly a full face shield,
depending on the nature of the task.
General Guidelines
●Keep children away from the generator.
●To prevent accidental or remote starting while working on the generator, disconnect the negative
(-) battery cable at the battery.
●Keep the generator and its compartment clean. Excess oil and oily rags can catch fire. Dirt and
gear stowed in the compartment can restrict cooling air.
●Make sure all installed fasteners have been secured and torqued properly.
●Do not work on the generator when mentally or physically fatigued or after consuming alcohol or
drugs.
●Used engine oil has been identified by some state and federal agencies as causing cancer or
reproductive toxicity. Do not ingest, inhale or allow bare skin to come into contact with used oil or
its vapors.
●Benzene and lead in some gasoline mixtures have been identified by some state and federal
agencies as causing cancer or reproductive toxicity. Do not ingest, inhale or allow bare skin to
come into contact with gasoline or its vapors.
●Keep multi-class ABC fire extinguishers handy. Class A fires involve ordinary combustible
materials such as wood and cloth; Class B fires involve combustible and flammable liquid fuels
and gaseous fuels; Class C fires involve live electrical equipment.
●Installation and operation of the generator must comply with all applicable local, state and
federal codes and regulations.
The Exhaust Produced By The Generator Is Deadly
Substances in combustion exhaust gases have been identified by some state and federal agencies to
cause cancer or reproductive toxicity. Do not breathe in or come into contact with exhaust gases.
Carbon monoxide is produced as part of the combustion process and is a poisonous gas. Inhalation of this
gas can cause serious personal injury or death. Make sure carbon monoxide is not being inhaled by
occupants of the vehicle as well as others working on or around the generator.
1. Learn the symptoms of carbon monoxide poisoning. Carbon monoxide is colorless, odorless,
tasteless and non-irritating. It cannot be seen or smelled. Exposure to even low levels of carbon
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monoxide for a prolonged period can lead to asphyxiation. Mild effects of carbon monoxide
poisoning include headache, dizziness, drowsiness, fatigue, chest pain and confusion. More
extreme symptoms include vomiting, seizure and loss of consciousness.
3. Never sleep in the vehicle while the generator is running unless the vehicle is equipped with a
working carbon monoxide detector.
4. Make sure there is ample fresh air when operating the generator in a confined area.
5. Disable any automatic starting feature of an inverter-charger or other automatic starting device
before storing the vehicle or parking it in a garage or other confined space.
6. The exhaust system must be installed in accordance with the Flex Power Generator Installation
Manual. (available here: https://rvmp.co/manuals).
7. Engine cooling air must not be used for heating the working or living space or compartment.
Gasoline And Propane Are Flammable And Explosive
Fuel and fuel vapor are highly explosive. Do not smoke or turn electrical switches on or off where fuel
fumes are present or in areas sharing ventilation with fuel tanks or equipment. Keep flame, sparks,
pilot lights, arc-producing equipment and all other sources of ignition well away from fuel lines and fuel
sources. Fuel lines must be secured, free of leaks and separated and/or shielded from electrical wiring.
• Fuel leaks can lead to explosive accumulations of gas or vapor.
• LP sinks when released and can accumulate inside housings, basements and other below-grade
spaces.
Generator AC Output Voltage Is Dangerous
The generator must not be connected to shore power or to any other source of electrical power without
the use of an approved transfer switch. Connecting the generator to utility power during a power
outage can cause electric shock, resulting in severe personal injury or death, as well as damage to
equipment.
1 Disable any automatic starting feature of an inverter-charger or other automatic starting device
before servicing the generator.
2 Generator electrical output connections must be made by a trained and experienced electrician and
in accordance with applicable codes.
3 Use caution when working on live electrical equipment. Remove jewelry, make sure clothing and
shoes are dry, stand on a dry wooden platform or rubber insulating mat and use tools with
insulated handles.
8

Gas Emitted From Batteries Is Explosive
Battery gas is highly explosive and may result in death, serious personal injury and/or severe product
and property damage. Battery compartments must be adequately ventilated per RVIA guidelines (see
RVIA/NFPA 1192 Section 2-3). Wear appropriate personal protective equipment when working on the
battery and do not smoke around the battery. Disconnect the negative battery cable first and
reconnect it last.
• Wear safety glasses.
• Do not smoke.
• To reduce arcing when disconnecting or reconnecting battery cables, always disconnect the negative
(-) battery cable first and reconnect it last.
Moving Parts Can Cause Injury
Hot, moving, and electrically-live parts can result in death, serious personal injury and/or severe
product and property damage. Make sure protective guards are in place, use trained personnel to
make adjustments and do not wear loose clothing near moving parts.
• Make sure all protective guards are property installed before starting the generator.
• Use only trained personnel to make adjustments to the generator while it is running.
• Moving parts can catch loose items, such as clothing or jewelry. Do not wear loose clothing or
jewelry near moving parts such as power take-off shafts, fans, belts and pulleys.
• Moving parts can entangle appendages, including fingers. Keep the protective guards in place over
the fans, belts, pulleys and other moving parts and keep hands away from all moving parts.
Model Identification
A nameplate containing the model and serial number of the generator is affixed to the front of the generator.
This information is necessary when contacting RVMP for parts, service and product information.
Contact RVMP at [e-mail] or through www.rvmp.co.
Model Specifications
4,000 Watt
5,500 Watt
Model
4000i
5500i
Part Numbers
RVMP-OEM-4L1-RV401
RVMP-AM-4L1-RV401
RVMP-OEM-4L1-RV551
RVMP-AM-4L1-RV551
Generator Specs
Multi-pole permanent magnet field, self-excited, 1-phase digital sine
9

wave, air cooled
Power (Watts)
4000 / 3800 (LP)
5200 / 4700*(LP)
Frequency
60 Hz
60 Hz
Volts
117 - 120
119 - 124
Amps
30.0 - 30.3
39.2 - 43.3
Engine Specs
1 cylinder, 4-cycle, spark ignited, OHV, air-cooled
Bore
2.75 in (70 mm)
3.15 in (80 mm)
Stroke
2.83 in (58 mm)
2.36 in (60 mm)
Displacement
13.73 in3(225 cc)
18.4 in3(302cc)
Compression Ratio
8.5:1
9:1
Oil Capacity
1.6 qt. (1.5 liters)
1.9 qt. (1.8 liters)
Intake Valve Lash
0.00354 in - 0.0433 in (0.09 mm -
0.11 mm)
0.0039 in - 0.0059 in (0.1 mm -
0.15 mm)
Exhaust Valve Lash
0.00433 in - 0.00512 in (0.11 mm -
0.13 mm)
0.0039 in - 0.0059 in (0.1 mm -
0.15 mm)
Spark Plug Gap
0.032 in (0.80 mm)
0.016 in - 0.024 in (0.4 mm -
0.6 mm)
Ignition Timing
25° BTDC, non-adjustable
27° BTDC, non-adjustable
Governor
Digital
Digital
Choke
Automatic Digital
Automatic Digital
Oil Capacity
1.7 qt (1.6L)
1.9 qt (1.8L)
Lubrication
Splash
Splash
Emergency Start
Recoil Start Available
None
RPM
Variable 2200-3600
Variable 2600-3600
DC System Specs
Battery Voltage
12 V
12 V
Minimum Battery Rating
450 CCA @ 0oF (-18oC)
450 CCA @ 0oF (-18oC)
Battery Cable Gauge Size
2 GA
2 GA
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AC System Specs
Design
Multi Pole PM
Multi Pole PM
AC Excitation
Brushless PM
Brushless PM
DC Excitation
Brushless PM
Brushless PM
Voltage Regulation
Digital
Digital
Voltage Regulation
117 - 120 Volts
119 - 124 Volts
Frequency Regulation
59 - 61 Hz
59 - 61 Hz
Total Harmonic Distortion
≤3%
≤3%
Ambient Temperature Rating
40C
40℃
Neutral
Bonded
Bonded
Installation Specs
Exhaust OD
1.13 in (28.7 mm)
1.13 in (28.7 mm)
Minimum Cooling Air Inlet Area
40 in2(258 cm2)
40 in2(258 cm2)
Unit Dimensions Excluding Hanging
Frame (LxWxH inches)
29.5 X 19.25 X 13.5
29.5 X 19.25 X 13.5 in
Muffler Outlet Collar OD
1.13 in (28.7 mm)
1.13 in (28.7 mm)
Weight (with engine oil and without
hanging frame)
117 lbs (53 kg)
161 lbs (73 kg)
Minimum Compartment Size
30.0 in x 19.75 in x 14.0 in (762
mm x 502 mm x 356 mm) Above floor
applications
30.0 in x 19.75 in x 14.0 in
(762 mm x 502 mm x 356 mm)
Above floor applications
Gasoline Specs
No Load Consumption Rate
0.12 G/hr
0.13 G/hr*
Half Load Consumption Rate
0.30 G/hr
0.30 G/hr*
Full Load Consumption Rate
0.60 G/hr
0.70 G/hr*
Fuel Connection
1/4 inch barb fitting for gasoline
hoses
1/4 inch barb fitting for gasoline
hoses
Propane Specs
No Load Consumption Rate
.79 lbs/h
.90 lbs/h*
Half Load Consumption Rate
2.2 lbs/h
2.3 lbs/h*
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Full Load Consumption Rate
3.3 lbs/h
3.5 lbs/h*
Fuel Connection
1/2 in - 18 UNC, SAE 45° flare
fitting
1/2 in - 18 UNC, SAE 45° flare
fitting
LP Vapor Supply Pressure
9-13 in (228-330 mm) WC
9-13 in (228-330 mm) WC
*Fuel consumption rates approximated for 5500i model until full testing completed in Fall 2022
Generator Components
Operating the generator with the access cover off can lead to severe burns and engine damage due to
overheating. Always secure the cover after starting the generator.
Removing the Access Cover
Turn the cover latches counter clockwise to the ‘open’ position and pull the top of the cover outward.
Components
The basic components of the generator are visible with the cover off (shown in Fig. 1).
Securing the Access Cover
Position the bottom of the access cover so that its lip catches the top edge of the pan. Rotate the top
of the cover toward the generator and turn the two cover latches clockwise to the closed position,
while making sure the latches catch with the cover and are secure.
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Fig. 1
4000i Generator Control Panel
The control panel for the 4000i model (Fig. 2A) is located behind the maintenance access cover and has the
following features.
1. Push button start- Push and hold for 1 second to automatically start the engine and push again
to stop.
2. Status indicator lights.
A. Low oil LED – This light indicates low oil level and will not allow the engine to start or run.
B. Overload LED – This light indicates a general system electrical overload.
C. Output ready – This light indicates the generator is ready to use.
3. ON/OFF AC Output Circuit Breaker – Allows the generator to automatically disconnect when
overloaded to protect the generator and the appliance(s). Be sure to place the circuit breaker
into the ‘ON’ position once the generator has successfully started.
4. Reset button – If the generator is overloaded, the inverter will disconnect at the AC overload
breaker. The engine will continue to run but there will be no electrical output. Reduce the
electrical loads, then push the reset button, and then turn the breaker back to ‘ON.’
5. Gasoline Primer button – Press and hold the primer button to actuate the gasoline pump to bring
fuel from the fuel tank to the generator engine. This is typically only needed the first time the
generator is operated or after returning the generator to operation after being disconnected from
13

the RV.
6. VFT Meter – The meter will display the generator operating voltage, hours operated and the
electrical frequency. The meter will also display maintenance intervals (see maintenance meter
codes section below).
Fig. 2A
5500i Generator Control Panel
The control panel for the 5500i model (Fig. 2B) is located behind the maintenance access cover and has the
same features and functionality as outlined above for the 4000i, with the following notable
exceptions:
1. Status indicator lights.
A. Low oil LED – This light indicates low oil level and will not allow the engine to start or run.
B. Overload / Output ready LED – The 5500i model uses a single LED for these two functions.
When this light is green, this indicates that the generator is ready to use. When this light
is red, this indicates a general system electrical overload.
2. ON/OFF 15 Amp AC Output Circuit Breaker – The 5500i model uses two separate circuits as the
AC output, a 15 Amp circuit and a separate 30 Amp circuit. The 15 Amp circuit breaker
automatically disconnects when the 15 Amp circuit is overloaded to protect the generator and
the appliance(s).
3. ON/OFF 30 Amp AC Output Circuit Breaker – The 30 Amp circuit breaker automatically
disconnects when the 30 Amp circuit is overloaded to protect the generator and the
appliance(s).
14

Fig. 2B
Remote Operation Panel
Most RVs that are equipped by the original equipment manufacturer to accept an installed generator also
include a secondary operation control panel (often located within the RV living space) to operate the
generator. The panel is equipped with the ability to start and stop the generator, prime the gasoline and read
the VFT meter functions. The Install Manual explains how to connect the generator to such a remote panel.
(available here: https://rvmp.co/manuals). Once properly installed:
1. Press START/STOP to remotely start the generator and stop the generator.
2. Press PRIME to prime the gasoline.
3. (other features may be available depending on the remote control being used)
Operation
Breaking in a New Engine
Proper engine break-in on a new generator is essential for top engine performance and acceptable oil
consumption. Run the generator at approximately ½ power for the first two hours of operation, and ¾ power
for two more hours. See electrical loading details below for the generator to determine proper electrical
loads. Proper engine oil and oil level are especially critical during the break-in period. Change the engine oil
if operation in hot or cold temperatures as needed (see engine oil recommendations). Check the oil level
twice a day or every four hours during the first 25 hours of break-in, then change the engine oil after the first
25 hours (see changing the engine oil).
Pre-Start Checks
Before the first start of the day and after every eight hours of generator operation, inspect the generator as
instructed under (conducting general inspections). Keep a running log of maintenance and the hours of
operation and perform maintenance that may be due. See (returning the generator to service) if the RV has
been in storage.
Before Each Start:
1. Verify that the correct fuel source is selected.
15

A. If turning the fuel switch to gasoline, make sure there is gasoline in the fuel tank.
B. If turning the fuel switch to LP, make sure the LP hose is safely secured from the generator
to the LP tank. Fully open the LP tank valve.
2. Make sure all vehicle carbon monoxide (CO) detectors are working.
3. Check for signs of fuel and exhaust leaks and for damage to the exhaust system.
4. Turn off the air conditioner and other large amp draw appliances.
5. Make sure the engine is filled with oil to the proper level.
Starting the Generator
1. If the generator is brand new, was recently serviced, or previously ran out of gasoline, prime the
gasoline fuel system by pressing and holding the primer button on the control panel until all air
bubbles have been purged out of the fuel hoses. See Fig. 3 below.
Fig. 3
NOTE: The primer button is disconnected when operating on LP fuel, which does not require
priming.
NOTE: The generator can be started from either the remote panel or directly at the front panel of
the generator.
A. Push and hold the start button for 1s then release, the generator will begin an automated
starting routine.
B. The generator will stop cranking after a predetermined time. If the generator hasn’t
successfully started, press the start button again to re-start the automated routine.
C. Pull the recoil handle if the battery voltage is low and the engine will not turn over from the
battery.
2. For top performance and engine life, especially in colder weather, let the engine warm up before
connecting appliances.
Operating the generator with the access door off can lead to severe burns. Always secure the access
door after starting the generator.
Exhaust gases contain carbon monoxide (CO), an odorless colorless gas. Carbon monoxide poisoning
16

can cause unconsciousness and death. Symptoms of carbon monoxide poisoning include: dizziness,
muscular twitching, weakness, sleepiness, throbbing in the temples, headache, inability to think
clearly, nausea and vomiting. If you or anyone experiences any of these symptoms move quickly to
clean air outside of the RV. If symptoms persist, seek medical attention immediately. Shut down the
generator and do not operate it until it has been inspected or repaired.
Never sleep in the RV with the generator running unless the RV is equipped with a working carbon
monoxide detector. Primary prevention method against inhaling carbon monoxide is proper installation of
the exhaust system and daily inspections for visible and or audible exhaust leaks.
3. Check for fuel and exhaust leaks. Stop the generator immediately if there is a fuel or exhaust leak
and have it repaired before continued operation.
4. See Trouble Shooting section below if the engine shuts down and any of the LEDs are blinking.
5. Secure the access door after starting the generator.
Short circuits in electrical appliances and tools can cause fire and electrical shock leading to severe
personal injury and or death. Read and follow the equipment and tool manufacturer’s instructions and
warnings regarding safe use, maintenance and proper grounding.
Resetting Overload
An electrical overload or a short circuit will trip the over-current protection system by disconnecting the
generator’s AC output at the AC circuit breaker(s) even though the generator engine continues to run. If this
occurs, the OVERLOAD LED light on the generator control panel will be illuminated and the OUTPUT READY
light will be off.
To restore the generator AC output, use the following procedure:
1. Turn off all electrical appliances.
2. Press the red RESET button on the generator control panel until the OVERLOAD alarm light goes off
and the OUTPUT READY light is on.
3. Check that the electrical starting and running loads do not exceed the generator’s ampacity or
have a licensed electrical/technician correct any fault causing a short circuit in the electrical wiring.
4. Turn on electrical loads as needed.
Stopping the Generator
During normal operation, use the following steps to stop the generator:
1. Push the circuit breaker(s) on the generator control panel to OFF.
2. Push the START button on the generator control panel or the remote panel. The engine will
automatically stop.
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Connecting to Utility Power
Connecting the generator to a public utility (or any other power supply) can lead to electrocution of
personnel working on the utility lines, damage to equipment and fire. An approved switching device or
transfer switch must be used to prevent a dangerous connection.
When the RV has provisions for connecting to utility power (shore power), such as a cord for plugging into a
power receptacle at a campground, it must also have an approved switching/transfer device to keep the
generator and utility from being simultaneously connected.
Loading the Generator
The generator can power AC motors, air conditioners, AC/DC converters, charge batteries, and other
appliances. The total appliance load that can be powered depends upon the generator’s rated power for
each model. The generator will disconnect AC output power at the AC breaker(s) on the front panel of the
generator if the total sum of the loads exceeds the generator’s rating.
To avoid overloading the generator and causing shutdowns, compare the sum of the RUNNING loads of the
appliances that are likely to be used at one time to the power rating of the generator. Use Fig. 4 below or the
ratings of the appliances to obtain the individual appliance loads. It may be necessary to run fewer
appliances at the same time. The sum of the appliance loads must not exceed the rating of the generator.
Fig. 4
When a large motor or air-conditioning unit is started, the generator may shut down due to overload even
18

though the running power of the air-conditioning unit is less than the rated power of the generator. This is
due to the instantaneous amperage draw of the air-conditioning unit and is a short duration. If the generator
does shut down, allow 5 minutes to elapse before attempting to reconnect the generator to any loads or the
RV fuse panel. This is because the air-conditioning unit needs time to equalize the pressure inside the
air-conditioning unit and failure to wait adequate time is called short cycling.
It is also important to note that air density decreases as ambient temperature and elevation increases, which
causes the generator’s output to decrease. Generator power decreases approximately 3.5% of rated power
for each 1000 feet above sea level. See Fig. 5 below for typical calculations for the 4000i model generator. It
may be necessary to operate fewer appliances at higher elevations and increased temperatures.
Fig. 5
Altitude Adjustment
As noted above, the generator performance will decrease at high elevations due to the reduced amount of
oxygen available for combustion in the engine. To account for this, the carborurator contains an adjustment
to improve performance at high altitudes. The generator comes from the factory with the altitude
adjustment set for sea level.
1. To adjust the carburetor for high altitude operation, use road maps, GPS and road signs to
determine the local elevation.
2. Locate the high altitude adjustment knob (Fig. 6) located on the carburetor bowl, it is located
behind the air cleaner cover.
3. Rotate the knob (you may need a small tool to make the adjustment) to the local elevation.
4. Upon leaving high local elevation be sure to return the adjustment to lower elevations.
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