EcoFlow Smart Generator User manual

EcoFlow Smart Generator User Manual

Users are expected to read this User Manual carefully and ensure they have
fully understood the content before using this product. Please keep this User
Manual for future reference. Any incorrect usage may result in severe injury
to the user or others, damage to the product or loss of property. By using
this product, the user will be deemed as having understood, recognized
and accepted all the terms and contents of the User Manual, and will be
responsible for any incorrect usage, and all the consequences arising
therefrom. EcoFlow hereby disclaims any liability for any losses due to the
user's failure to use the product according to the User Manual.
Subject to compliance with laws and regulations, our company has the
final right to interpret this document and all documents of and related to
this product. Any update, revision or termination of the content thereof, if
necessary, will be made without prior notice, and users must visit the official
website of EcoFlow for the latest information regarding the product.
Disclaimer
EcoFlow Smart Generator (hereinafter referred to as the Generator)

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1. Safety Guidelines
2. Quick Start
3. Maintenance and Servicing
Contents
2.1 Appearance Description
2.2 Introduction to the Icons on the Display Screen
2.3 Before You Use the Product
2.4 Using the Product
--2.4.1 Startup
--2.4.2 Turning Off
--2.4.3 AC Connections
--2.4.4 DC Charging
2.4.4.1 Charging the DELTA Max or the DELTA Pro
2.4.4.2 Charging the DELTA Max Extra Battery Pack
or the DELTA Pro Extra Battery Pack
--2.4.5 Using the App
--2.4.6 Application Range
--2.4.7 Special Requirements
3.1 Checking the Spark Plug
3.2 Adjusting the Carburetor
3.3 Replacing the Engine Oil
3.4 Air Filter
3.5 Fuel Filter Strainer
3.6 Muffler
1.1 Safety Warning
1.2 Safety Instructions
1.3 Important Labels
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5. Faults and Troubleshooting
6. Parameters and Specifications
7. Package List
8. Circuit Diagram
4. Storage and Transportation
4.1 Draining the Fuel
4.2 Storing the Generator
4.3 Rechargeable Battery
4.4 Use after storage
4.5 Transportation
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1. Safety Guidelines
1.1 Safety Warning
1.2 Safety Instructions
The safety of you and others, as well as of property are of the primary importance. Please carefully read the
extremely important safety warnings we have written in the User Manual and the sticker of the generator set.
This is to remind you of the potential dangers which may harm you and others. Before each safety warning is
a symbol and one of the three following words: danger, warning or caution.
These words indicate:
If you fail to follow the instructions, your life will be at risk or you will be severely injured.
If you fail to follow the instructions, your life may be at risk or you may be seriously injured.
If you fail to follow the instructions, your generator set and other property may be damaged.
Please read the User Manual carefully before using the generator in order to avoid accidents.
Do not use in damp
environments
Make sure that no fuel is
spilled when refueling
Do not smoke when refueling Switch off the engine
before refueling
Keep any combustibles at
least 1m / 3ft away
Do not use indoors and keep away
from doors, windows and vents
Danger
Warning
Caution
Earthing the Generator
Connect the Generator to the Electrical System
The generator is equipped with system grounding, which is used to connect the generator’s frame components
to the ground terminal in the AC outlet. The system grounding doesn’t connect to the AC neutral.
Do not connect the generator to the electrical system of a building, unless an isolation switch has
been properly installed by a licensed electrician. Please comply with all applicable laws and electrical
regulatory requirements.
Keep the air inlets in the side of front panel, the muffler and the bottom of generator clean and
unblocked and prevent any debris, mud or water from entering. The generator, the controller or the
engine may be damaged if these air inlets become blocked. Do not transport, store or use the generator
together with other products. Any oil leaks may damage the generator or endanger your personal
safety as well as your property.
Caution

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1.3 Important Labels
Please refer the following stickers carefully before starting to use the product.

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Maintenance Cover
2.1 Appearance Description
2. Quick Start
Fuel Cap
Fuel Cap Breather Valve
Muffler

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Engine Switch
LCD Screen
IOT Reset Switch
AC Power Button
AC Output Sockets
Starter Grip
Carbon Monoxide Alert Light
Engine Oil Alert Light
Electric Start Switch
Extra Battery Port (XT150)
Ground Terminal
Carbon Monoxide Alert Light: When the carbon monoxide sensor detects that the concentration of
carbon monoxide is about to exceed the standard, the generator will automatically stop and the carbon
monoxide alert light will flash for 5 minutes. During this course, the generator cannot be started.
Air Filter
Rechargeable Battery
Oil Drain Bolt
Spark Plug
Engine Oil Dipstick

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2.2 Introduction to the Icons on the Display Screen
Remaining Power Percentage: If the remaining fuel level is lower than 600 mL/20.3 oz., the indicator
will be at 0% charge and flash to warn you.
Wi-Fi Status: After pressing the IOT button for 3 seconds, the Wi-Fi status will flash on the LCD screen
which indicates that the product is ready for pairing. There’re two ways to connect the product with
the App, either directly connect to the product’s hotspot or using the Internet. If the App is successfully
connected to the product’s hotspot, the icon will keep flashing; if it is successfully connected to the
Internet, the icon will stay on.
* See Section 5 for more troubleshooting steps.
Error Code: Please refer to the EcoFlow app for specific information on error codes.
ECO Mode: In ECO mode, the Smart Generator will adjust its rotational speed to match the output
power demand, in order to conserve fuel and reduce noise. This is the default mode. You can modify the
mode settings in the EcoFlow app. For details please refer to 2.4.5.
ECO
Wi-Fi Status
Total Run Time
Remaining Power Percentage
Eco Mode
AC Output DC Output
Output Overload Alert
Communication Connection
Output Power
Rechargeable
Battery Fault Alert
Error Code
Carbon Monoxide
Alert
Low Temperature Alert
High-Temperature Alert
Remaining Running Time

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2.3 Before You Use the Product
Refueling
Please read the Safety Guidelines carefully before refueling as
fuel is inflammable and toxic. Do not overfill the fuel tank, as
fuel may expand and spill out when the fuel tank warms up.
Be sure to tightly close the fuel cap after refueling.
Danger
Clean away the residual fuel with a clean and soft cloth after
refueling to avoid damage to the rubber shell. Please use
unleaded fuel rather than leaded fuel which may severely
damage the internal parts of generator. Take off the fuel cap
and fill up until the red indicator.
Recommended fuel: unleaded fuel
Fuel tank capacity: 1.05 gal. / 4 L
Caution
Open fuel cap
Refueling
Fuel Filter
Strainer
Red Indicator

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Add Generator Engine Oil
There is no engine oil in the generator when delivered from the
factory. Do not start up the generator until after adding sufficient
engine oil. Do not tilt the generator when adding engine oil, to
prevent damage to the generator due to adding excessive oil.
1. Place the generator on a level plane.
2.
Turn the maintenance cover knob to and take off the maintenance cover.
3. Unscrew the lid and oil dipstick.
4. Inject the specified amount of recommended engine oil, and screw
the lid and oil dipstick closed tightly. Reinstall the maintenance cover
and turn the knob to Closed.
Recommended engine oil: SAE SJ 10W-40
Grade of recommended engine oil: SJ or higher
Oil capacity: 0.1 gal. / 0.38 L
Caution
Rechargeable Battery Connection
The generator cannot be started by the Electric Start switch unless
connected to the internal battery.
Turn the maintenance cover knob to , take off the maintenance
cover and connect the positive and the negative wires of the battery
respectively.
Connecting the positive
and negative wires
Refilling the engine oil
Removing the
maintenance cover

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Turn the maintenance cover knob to Open, take off the maintenance cover and check whether the
positive and the negative wires of battery are connected correctly.
Check for any issues while the generator is running and consult EcoFlow for further technical support if
necessary.
c) Check whether the rechargeable battery is connected correctly
Malfunctions While Running
b) Check the engine oil level
Check the engine oil level. If the oil level is low, the engine oil
alarm system may shut off the engine.
1. Unscrew the lid, take out the oil dipstick and wipe it clean.
2. Dip the oil dipstick into the oil filler without screwing it in, and
check the oil level.
3. Add the recommended amount of engine oil if the oil level is low.
4. Screw the oil dipstick and lid firmly shut.
Make sure there are no engine oil leaks.
a) Check the fuel level
Take off the fuel cap and check the fuel level. Inject more fuel into the tank if the fuel level is too low.
Checking Before Use
Please check the following components carefully each time before using the generator.
Warning
Engine oil level check

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1. Turn the fuel cap breather valve knob to "ON". 2. Turn the Engine Switch to "ON".
The generator can be started using any of the four methods below:
a) Electric Start Switch
Press and hold the Electric Start Switch for 2 seconds to execute the
start-up program and start up the generator.
Tips: To save battery power consumption, when the Engine Switch is
at the "ON" position, if the generator fails to start up, the power will be
disconnected after 3 mins and the display screen will switch off. In this
situation, press the start button to activate the screen display to then re-
enable the Electric Start Switch.
b) Manual start
Pull the Manual Starter Grip until the line tightens and push it by force.
Tips: When starting by hand, it is necessary to hold the generator still to prevent it from tilting or
tumbling during the pull-push process.
c) Self-start, see paragraph 2.4.4
d) Starting through the app, see paragraph 2.4.5
Tips: When the ambient temperature is below 32 ℉(0 °C), the engine will need to warm up for three
minutes after being started, during which time no load should be loaded.
Read the Safety Guidelines before use.
Do not use the generator in a closed space as the exhaust fumes may result in a loss of
consciousness or even death. Use it in a well-ventilated place.
Do not connect the AC Output Socket with any electrical equipment before starting the generator.
Tips: The generator is used at 5 ℉-104 ℉(-15 ℃—40 ℃). The generator can operate at rated power under
standard atmospheric conditions (“standard atmospheric conditions” - ambient temperature 77℉ (25 ℃)
- atmospheric pressure 100KPA - relative humidity 30%). Once the temperature, humidity and altitude
exceed standard atmospheric conditions, the output of the generator will drop. Using for a long time in
a high temperature (above 95℉ /35 ℃)environment will affect the service life of the generator and the
built-in battery. Moreover, if the generator is used in any narrow space, its load must be reduced as the
generator cooling is affected.
2.4 Using the Product
2.4.1 Startup
Manual start
Danger

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To turn the engine off in an emergency, turn the engine switch to the “OFF” position. In any other
circumstances, please follow the below steps.
1. Switch off all electrical equipment and disconnect them from the generator.
2. There are three methods to turn off the generator:
a) Using the Engine Switch: Turn the Engine Switch to "OFF" to turn off the generator.
b) Using the Electric Start button: Press and hold the Electric Start button for 2 seconds to stop the engine.
c) To turn off the generator through the app, please refer to paragraph 2.4.5.
Tips: When the AC output switch and DC output switch are turned off, in order to save power, the
generator will automatically turn off after 10 mins.
3. Wait until the generator is completely cooled down, then turn the Engine Switch and the fuel cap
breather valve knob to "OFF".
2.4.2 Turning off
Caution
Warning
Make sure that all electrical equipment including wires and plugs are in good condition before being
connected to the generator, and confirm that all loads carried by the generator are within the rated load
range and that the load current is within the rated current range.
Tips: Make sure that the generator is grounded. If any electrical equipment needs to be grounded, the
generator must also be grounded.
2.4.3 AC Connections
Switch off all electrical equipment before inserting plugs.
1. Start the generator.
2. Insert the plug into the AC Output Socket and check that the on-screen AC output port icon is illuminated.
3. Switch on the electrical equipment.
Tips: While the engine is running, the AC output can be connected and disconnected by the AC switch
button. If the generator supplies power to multiple loads or electrical equipment, please start electrical
equipment in descending order, according to the size of the load.

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1. Turn the fuel cap breather valve knob to "ON" (see Step 1 in paragraph 2.4.1).
2. Turn the Engine Switch to "ON" (see Step 2 in paragraph 2.4.1).
3. Connect with the DELTA Max or the DELTA Pro through the 5m/ 16.4ft Extra Battery Connection
Cable.
4. If the remaining power of the DELTA Max or the DELTA Pro falls to the lower limit, it will send a
request to the generator to recharge. The generator will respond and start recharging.
Tips: If the remaining power of the DELTA Max or the DELTA Pro does not fall to the lower limit, the
generator can be started by hand to start recharging.
5. Once the power capacity of the DELTA Max or the DELTA Pro reaches the upper limit, it will send a
request to the generator to stop charging. The generator will respond and stop DC recharging.
1. Turn the fuel cap breather valve knob to "ON" (see Step 1 in paragraph 2.4.1).
2. Turn the Engine Switch to "ON" (see Step 2 in paragraph 2.4.1).
3. Connect to the DELTA Max Extra Battery or DELTA Pro Extra Battery with the 5m/ 16.4ft Extra Battery
Connection Cable.
4. Switch on the DELTA Max Extra Battery or DELTA Pro Extra Battery and it will send a request to the
generator to recharge. The generator will respond and start recharging.
5. When the DELTA Max Extra Battery or DELTA Pro Extra Battery is fully recharged, it will send a
request to the generator to stop charging. The generator will respond and stop DC recharging.
Tips: The DELTA Pro Extra Battery Pack needs to use the dedicated adaptor, which is included in the
DELTA Pro standard configuration.
Tips: The upper and lower limits may be set on the app. The upper limit is 100% by default and the lower
limit is 20% by default. When used together with the DELTA Max or the DELTA Pro for recharging,
to improve the utilization efficiency of fuel, it is recommended to set the upper limit as 80%. When
charging with DC, the AC switch can be turned on for AC output. The total power of DC+AC is
1800 W, with AC output as the priority.
Tips: The DELTA Pro needs to use the dedicated adaptor plug,which is included in the DELTA Pro standard
configuration.
2.4.4 DC Charging
2.4.4.1 Charging the DELTA Max or the DELTA Pro
2.4.4.2 Charging the DELTA Max Extra Battery Pack or the DELTA Pro Extra Battery Pack

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You can control and view the information and data of the product through the
EcoFlow app.
Read the EcoFlow App user guide and access the download link here:
https://ecoflow.com/pages/ecoflow-app.
Application
Power Factor 1 0.8–0.95 0.4–0.75
(Efficiency 0.85)
Output ≤1800 W ≤1440 W ≤612 W
Please make sure that the total load of the generator is within the rated range before using the
generator, or otherwise the generator may be damaged.
When this generator is supplying power to precision instruments, electronic controllers, personal
computers and microcomputers, please keep the generator a sufficient distance away from any of the
foregoing equipment to avoid electromagnetic interference, and at the same time, to ensure that the
generator will not be interfered with by these electronic devices.
If this generator is used to supply power to medical devices, it is recommended to consult with
the corresponding equipment manufacturers and technicians first. This is because some electronic
equipment or general purpose machines in hospitals require a strong current upon startup and may not
be able to use the generator. Please contact the equipment manufacturer for confirmation even if the
respective start parameters of the equipment satisfy the conditions listed in the table above.
There may be local laws or regulations applicable to the intended use of the generator set. Please
consult with qualified electricians, electrical inspectors or the local authorities with jurisdiction for
further information.
In some areas, generator sets must be registered with local utility companies.
Generator sets, if used on construction sites, may be subject to regulations.
2.4.5 Using the App
2.4.6 Application Range
2.4.7 Special Requirements
Warning
Caution

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3. Maintenance and Servicing
Proper maintenance and servicing is essential to ensure safe, economical and reliable usage. This also
helps minimize your environmental impact.
You must regularly check and service your generator to keep it in optimal condition based on the
schedule below.
If the generator set works at high temperature under high loads, the engine oil should be replaced every
25 hours.
If working in dusty or harsh environments, the air filter element should be cleaned every 10 hours and, if
necessary, replaced every 25 hours.
Spot check items based on either the cycle or length of time, whichever comes first.
If you have reached a servicing interval, servicing must be performed as required based on the table
above as soon as possible.
Turn off the generator before starting any maintenance. Place the generator on a level spot and
separate the spark plug cap from the spark plug to prevent the generator from starting up.
Do not use the generator such in poorly ventilated places such as rooms, rail tunnels or caves. Be
sure to keep the working area well ventilated. Exhaust gas from the generator contains toxic carbon
monoxide fumes. Inhaling these fumes may lead to shock, loss of consciousness or even death.
Generator Engine
Oil
Check – Add
Check – Add
Check - Adjust
Check - Adjust
Clean – Adjust
Replace
Clean
Clean
Clean
Clean
Check Every 2 years (or replace it if necessary)
Remove any
carbondeposits ** Every 300 hours
Replace
Item
Servicing
Intervals
Each Time
Within the first
month or after
20 hours of
operation
Once every
three months or
every 50 hours
of operation
thereafter
Then once every
year or every
100 hours of
operation
Air Filter Element
Sediment Bowl
Spark Plug*
Spark Plug Arrester
Idle Speed **
Valve Clearance **
Fuel Tank and
Fuel Filter **
Fuel Pipe*
Cylinder Head,
Piston
* These items should be replaced if necessary
** These items should be serviced by their respective dealers unless the user has the appropriate tools and
maintenance capacity
Caution
Danger

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The carburetor is an important part of engine, and should be adjusted by the dealer who has the
professional knowledge, data and equipment to ensure it is adjusted correctly.
3.2 Adjusting the Carburetor
Usage in high altitude areas
In high altitude areas, the atmospheric pressure may reduce the amount of air intake, decline the performance
and increase the fuel consumption of standard carburetors. Moreover, the dense mixture may contaminate
the spark plug and lead to starting difficulties. When the generator is running at high altitudes (above 3000
feet/914 m), the emissions may increase.
Modifying the carburetor can improve its high altitude performance. If you plan to operate your generator at
high altitude (above 3000 feet/914 m) areas for a long time, please contact your after-sales service team to
help to modify it. When using the modified carburetor in high altitude areas (if within the service life of the
generator), the generator will satisfy every emission standard.
Standard spark plug: A5RTC
Spark plug clearance: 0.15–0.3 mm
Tips: The engine may be damaged if the spark
plug is not at the correct clearance height.
3.1 Checking the Spark Plug
Removing the
sparkplug
Spark plug clearance
1. Turn the maintenance cover knob to and take off the maintenance
cover.
2. Take off the spark plug cap.
3. Use the spark plug socket and revolve it counterclockwise to remove
the spark plug.
4. Check for any fading in color and remove any carbon deposits. The
porcelain center around the spark plug center electrode should
be moderately light brown if it is in good condition. The electrode
should be replaced if worn, or if the insulation is peeling, cracked or
dirty.
5. Check the model of the spark plug and that it has sufficient
clearance. If required, correct the gap.
6. Reinstall the spark plug with a torque of 13.5±1.5 Nm.
Tip: If installing without a torque wrench, a good method is to tighten
until tight, then continue to turn by a further 1/4-1/2 rotation.
7. Reinstall the spark plug cap on the spark plug.
8. Reinstall the maintenance cover.
The spark plug is an important part of the generator and must be checked regularly.
0.15-0.3mm

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1. Place the generator on a level plane, start it up and keep it running for several minutes to increase
its temperature. Then turn it off. Turn the Engine Switch and the fuel cap breather knob to "OFF".
2. Turn the maintenance cover knob to and take off the maintenance cover.
3. Unscrew the lid and oil dipstick.
4. Place the oil basin under the generator and tilt the generator. The oil will drain quickly.
Tips: Improper disposal of engine oil may harm the environment. If you replace the engine oil yourself,
please dispose of the used oil properly. Store the used oil in a sealed container and take it to your
nearest oil recycling center. Do not pour it into any trash can, onto the ground or into the sewer.
5. Place the generator in its original horizontal state.
6. Refill the oil to the proper level.
7. Wipe the oil dipstick clean and remove any spilled oil.
Prevent any foreign objects from entering the inside of the engine.
8. Tighten the oil dipstick and lid.
9. Reinstall the maintenance cover and turn the knob to Closed.
Do not drain the engine oil immediately after the generator is switched off. The oil
temperature will be very high. Please take care not to get scalded when draining the oil.
3.3 Replacing the Engine Oil
Caution
Warning
Warning
Do not tilt the generator when adding engine oil to prevent damage to the generator due to
adding excessive oil.
1. Turn the maintenance cover knob to and take off the maintenance cover.
2. Take off the screws and the air filter cover.
3. Take off the foam filter element.
4. Clean the foam filter element with soapy water or a nonflammable solvent
and dry it.
5. Add oil to the foam filter element and squeeze out the excess oil. The
foam filter element should be wet but should not drip any oil.
6. Place the foam filter element into the air filter.
Tips: 1. Make sure that the surface of the foam filter element is in close
contact with the air filter, leaving no gap between them.
2. Do not start the generator before reinstalling the air filter as excessive
toxic gas may be produced and foreign objects may enter the engine,
causing wear to the engine block.
7. Install the air filter cover back to its original position and tighten the screws.
8. Reinstall the maintenance cover and turn the knob to Closed.
3.4 Air Filter
Caution Do not twist the foam filter element, to prevent any damage to it.
Removing the air filter cover
Wash clean Press and air dry
(donot twist)
Press (do not twist)Add correct
amount of oil

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4. Reinstall the fuel
cap.
3. Wipe the filter screen and
place it back into the fuel.
2. Clean the fuel filter
screen with fuel.
1. Take off the fuel cap
and fuel filter screen.
Once the generator starts running, the engine and the muffler will become scalding hot. Do not let
your skin or clothes directly touch the engine or muffler during your checks and maintenance.
Be sure to tighten the fuel cap.
1. Unscrew the bolts.
2. Take off the muffler cap, muffler block and spark plug
arrestor.
3. Clean the carbon deposits on the muffler block and the
spark plug arrestor gently with a steel wire brush to avoid
any damage or scratchesto the muffler block and spark
plug collector.
4. Check whether the muffler block or the spark plug arrestor
is damaged,and replace it if damaged.
5. Reinstall the parts in turn.
3.5 Fuel Filter Strainer
3.6 Muffler
Caution
Warning
Warning Never use fuel in any place near smoke or flames.
Clean any carbon deposits