ePropulsion I-20 User manual

I-20 User Manual
2023.04 Version 1.0
Copyright © ePropulsion Technology Limited

1
Acknowledgement
Thanks for choosing ePropulsion products, your trust and support in our company are sincerely
appreciated. We are dedicated to providing high-performance electric outboards, electric
inboards, sup/kayak motors, reliable lithium batteries and accessories.
Welcome to visit www.epropulsion.com and contact us if you have any concerns.
Using This Manual
Before use of the product, please read this user manual thoroughly to understand the correct
and safe operations. By using this product, you hereby agree that you have fully read and un-
derstood all contents of this manual. ePropulsion accepts no liability for any damage or injury
caused by operations that contradict this manual.
Due to ongoing optimization of our products, ePropulsion reserves the rights of constantly ad-
justing the contents described in the manual. ePropulsion also reserves the intellectual property
rights and industrial property rights including copyrights, patents, logos and designs, etc.
This manual is subject to update without prior notice, please visit our website www.ePropulsion.
com for the latest version. If you nd any discrepancy between your products and this manual,
or should you have any doubts concerning the product or the manual, please visit www.ePropul-
sion.com.
ePropulsion reserves the rights of nal interpretation of this manual.
This manual is multilingual, in case of any discrepancy in the interpretation of different language
versions, the English version shall prevail.
Symbols
ePropulsion considers safety of great importance and recommends that anyone that comes
into close contact with its products, such as those who install, operate, maintain or service ePro-
pulsion products, exercise care, common sense and comply with the safety information in this
manual and on the machine’s safety decals.
The following are the relevant information marks in the user manual or the product labels:
Hazardous or warning signs indicate a potentially hazardous or hazardous situation which, if not
avoided, will result in death or serious injury. Special attention and attention should be paid to
the safety of you or the products involved.
Important warning:
Tips or important informations help quickly grasp the use of the inboard motor and improve e-
ciency.

2
Please read and follow the instructions following the safety warning signs.
Caution:
When installing, operating, maintaining or serving ePropulsion products, there are many safety
risks in the process. You need to be alert, perform relevant operations reasonably, and pay atten-
tion to safety. when installing, operating, maintaining or serving ePropulsion products, there are
many safety risks in the process. You need to be alert, perform relevant operations reasonably,
and pay attention to safety.
Entanglement hazard:
Rotating parts can cause severe injury or death. Never wear jewelry, unbuttoned cuffs, ties or
loose-tting clothing and always tie long hair back when working near moving/rotating parts
such as the ywheel or PTO shaft. Keep hands, feet and tools away from all moving parts.
Electric shock hazard:
The areas or equipment may be at risk of electric shock. The equipment uses 102.4V DC power.
When operating electricity-related electrical connectors, switches, cables and other electricity-re-
lated items, power off operation to prevent electric shock.
Burn hazard:
Some of the machine surfaces become very hot during operation and shortly after shutdown.
Keep hands and other body parts away from hot machine surfaces.
Do not approach when the machine is running:
The machine and equipment are in operation. Do not approach or touch the machine to avoid
dangers.
Do not plug or unplug when the machine is running:
Do not plug or unplug electrical equipment when the machine is running to avoid the risk of elec-
tric shock.
90mm
86mm
60mm
56mm
13mm
90mm
86mm
60mm
56mm
13mm
110mm
76mm
22mm
100mm
88mm
110mm
76mm
22mm
100mm
88mm
120mm
116mm
80mm
76mm
18mm
120mm
116mm
80mm
76mm
18mm

3
Product Identification
Below picture indicates the serial numbers of the I-20 inboard motor. Please note the position of
the serial numbers and record them for access to warranty service and other after-sale services.
Product Label

4
Table of Contents
Acknowledgement .................................................................................................. 1
Using This Manual .................................................................................................. 1
Symbols ................................................................................................................. 1
Product Identification ............................................................................................. 3
1 Product Overview ................................................................................................ 7
1.1 In the Package ............................................................................................. 7
1.2 Parts and Diagram ...................................................................................... 11
1.3 Specifications ............................................................................................ 11
1.4 Instructions before Use .............................................................................. 12
2 Unpacking steps and notices ............................................................................. 14
2.1 Safety Notice.............................................................................................. 14
2.2 Tools and equipment required for unpacking .............................................. 14
2.3 Check the packaging .................................................................................. 14
2.4 Check the packaging .................................................................................. 14
2.5 Remove the inner packaging and inspect the product ................................. 15
2.6 Dispose of discarded packaging materials .................................................. 16
3 Install the I-10 motor ......................................................................................... 17
3.1 Install the motor ......................................................................................... 17
3.1.1 Before installation ........................................................................... 17
3.1.2 Center the output shaft .................................................................... 19
3.1.3 Lock the output shaft and fix the suspension ................................... 21
3.2 Connect seawater inlet and outlet pipes ..................................................... 23
4 Connect the system before operating the machine ............................................ 24
4.1 System connection diagram ....................................................................... 24
4.1.1 System connection diagram of the single-motor .............................. 24
4.1.2 System connection diagram of the dual-motor ................................. 25
4.1.3 Notes ............................................................................................... 27
4.2 Make a cable (crimped cable lug) ............................................................... 27
4.3 Cable connection........................................................................................ 29
4.3.1 Cable connection at the bus bar ....................................................... 29
4.3.1.1 Required accessories and tools ............................................ 29

5
4.3.1.2 Installation ........................................................................... 29
4.3.2 Connect the DC-DC module .............................................................. 32
4.3.2.1 Required accessories and tools ............................................ 32
4.3.2.2 Installation ........................................................................... 32
4.3.3 Connect the G102-100 Battery ......................................................... 33
4.3.3.1 Required accessories and tools ............................................ 33
4.3.3.2 Installation ........................................................................... 33
4.3.4 Connect the DC-DC module to the 12V battery ................................. 33
4.3.4.1 Required accessories and tools ............................................ 33
4.3.4.2 Installation ........................................................................... 33
4.3.5 Connect the power cable of the motor of the ship ............................ 34
4.3.5.1 Required accessories and tools ............................................ 34
4.3.5.2 Installation ........................................................................... 34
4.3.6 Connect interactive devices and accessories ................................... 36
4.3.6.1 Required accessories and tools ............................................ 36
4.3.6.2 Installation ........................................................................... 36
4.3.7 Connection of communication terminator ........................................ 40
4.3.8 Status after connection .................................................................... 41
5 Operation........................................................................................................... 42
5.1 Smart Throttle Button Description .............................................................. 44
5.2 Start the Machine ....................................................................................... 44
5.2.1 Boot Operation ................................................................................. 44
5.2.2 System problem feedback method after startup ............................... 44
5.3 Perform initial configuration ....................................................................... 44
5.4 Home Page ................................................................................................ 47
5.5 Powertrain diagram .................................................................................... 49
5.5.1 Control console ............................................................................... 49
5.5.2 Power Battery .................................................................................. 51
5.5.3 Propeller .......................................................................................... 51
5.6 Setting ....................................................................................................... 51
5.6.1 Propulsion Setting ........................................................................... 52
5.6.1.1 Propulsion switch................................................................. 52
5.6.2 Control console Settings .................................................................. 53
5.6.2.1 Smart throttle settings ......................................................... 53

6
5.6.2.2 Display settings ................................................................... 55
5.6.3 General setting ................................................................................ 56
5.6.3.1 System firmware information ............................................... 56
5.6.3.2 Maintenance - All maintenance timing tips ........................... 57
5.6.3.3 ePropulsion Connectivity Service ......................................... 58
5.7 Connectivity ............................................................................................... 58
5.7.1 Mobile application ........................................................................... 58
5.7.2 How to connect ................................................................................ 60
5.7.3 OTA update ...................................................................................... 63
5.8 Motor operation.......................................................................................... 64
5.8.1 Start ................................................................................................ 64
5.8.2 Adjust power ................................................................................... 64
5.8.3 Stop ................................................................................................. 65
5.8.4 Notices ............................................................................................ 65
5.9 Troubleshooting ......................................................................................... 66
5.9.1 Mechanical faults ............................................................................ 66
5.9.2 System faults................................................................................... 67
6 Maintenance ...................................................................................................... 71
6.1 Repair and maintenance: ............................................................................ 71
6.2 Part of the repair and maintenance guide ................................................... 72
6.2.1 Repair flexible impeller pump .......................................................... 72
6.2.2 Regular cleaning of heat exchanger ................................................. 73
6.3 List of fasteners ......................................................................................... 75
7 Warranty ........................................................................................................... 76
7.1 Out of Warranty ......................................................................................... 77
7.2 Limited Warranty Claim Procedures ............................................................ 78

7
1 Product Overview
The I-Series 10kW inboard motor is an electric inboard motor with input power of 10kW,
which is controlled by a smart throttle and smart display. The electric inboard motor is
environmentally friendly, clean and efficient. The I-10 inboard motor is perfect for small and
medium-sized recreational vessels, such as all types of yachts, leisure boats and sailboats,
which range from 5 to 20m.
1.1 In the Package
When you receive the inboard motor, unpack its package and check if all the items below are
included in the package. If there is any loss or transport damage, please contact your dealer
immediately.
Items Qty. Figure Function
I-20 main part 1 Provide the ship's propulsion,
driving the ship.
Bus bar 1
Transfer the electrical energy
of the power supply from the
main circuit of the power supply
system to different components
or modules in the circuit.
High voltage bus
cable 5m
(Cut into Battery
to bus bar power
cable and Motor
to bus bar power
cable)
1
Transfer DC power from the
battery to the power input of
the motor to provide the power
needed for normal operation of
the motor.
CAN
Communication
cable 1m
1
Connect the motor and other
devices such as the smart
throttle, smart display and
battery.
CAN comm
extension cable
10m
1
Extend the communication
distance of the CAN
communication cable

8
Items Qty. Figure Function
Open-end
wrench 2
Mount the suspension fasteners,
adjust the height and lock the
fastener of the output flange
shaft.
Hex wrench 2
The 3mm wrench is used for
fixing and locking the bus bar
The 5mm wrench is used for
fixing and locking the DC-DC
Fasteners /
1. 4 cross groove outer
hexagonal flange tapping
screws;
2. 4 M6x16 hex socket head
bolts;
3. 4 M10x45 outer hex bolts;
4. 8 M10 hex nuts;
5. 8 M10x18 outer hex bolts.
1. Bus bar fastening screw.
2. Bus bar fastening screw
(reserved).
3. Output flange locking bolt.
4. Output flange locking nut.
5. Suspension fastener.
Red and black
heat shrink
tubes
2 0.5 m Protect the main power cable
after stripping it
Cable lug 6 SC50-8 Retrofit terminal for rear end of
main power cable
5-way
T-connector 1
Connect the motor and
each device to the CAN
communication network
(controller LAN)
3-way
T-connector 1
Connect the motor and
each device to the CAN
communication network
(controller LAN)
1 2 3
4
A
B
3 2 1
B
A
D
C
D
C
材质
机型
g
A3
图样名称
第 页
共 页
比例
重量
完成日期
单位:mm
页 面
加工余量
未注几何公差
未注尺寸公差
Guangdong ePropulsion Technology Limited
广东逸动科技有限公司
2023/4/9N10024
N10074
17-19双开口扳手
4
1 2 3
4
A
B
3 2 1
B
A
D
C
D
C
材质
机型
g
A3
图样名称
第 页
共 页
比例
重量
完成日期
单位:mm
页 面
加工余量
未注几何公差
未注尺寸公差
Guangdong ePropulsion Technology Limited
广东逸动科技有限公司
2023/4/9N10024
N10074
3扳手
4

9
Items Qty. Figure Function
Communication
terminator 2Improve the quality of
communication
User manual
Warranty card 1
Give information about
the features, functions,
performance, purpose and
maintenance of the product.
Quality
Certificant
User
Man ual
Other accessories not included in the package are also required to operate the outboard
motor, such as smart throttle, smart display, battery, charger and communication cable, etc.
Users can buy official accessories provided by ePropulsion from ePropulsion authorized
dealers. The accessories list is shown below:
Items Qty. Figure Function
G102 battery 1 Provides reliable power for the
entire system
Smart throttle 1 Start, stop the motor and control
the power output
Smart display 1
Display system information such
as power, speed, battery level
and set system functions
DC-DC 1
Used as 102.4V to 12V DC
function, to provide a 12V stable
power supply to the system

10
Items Qty. Figure Function
Bus bar to DC-
DC power cable
5m
1
Connect the bus bar to the input
interface of the DC-DC module
to provide input power to the
DC-DC
DC-DC to 12V
battery power
cable 1.5m
1
Connect the output interface
of the DC-DC module to the
12V battery, so that the DC-
DC module can charge the 12V
battery
GPS module 1
Obtaining a ship's Global
Positioning System (GPS)
signal can provide the
ship's position and speed
information, helping
ship managers with ship
management and adjusting
course plans.
4G antenna 1
The 4G antenna is a kind of
communication equipment.
The machine realizes remote
network connection through the
4G antenna to realize remote
control and monitoring. At the
same time, it can support high-
speed data transmission, which
is convenient for the crew to
carry out online data sharing
and backup operations.
12V battery 1
Provide electrical energy
for the system's 12V power
requirements equipment
3.3kW charger 1 Charge the G102 battery
1 2 3
4
A
B
3 2 1
B
A
D
C
D
C
材质
机型
g
A3
图样名称
第 页
共 页
比例
重量
完成日期
单位:mm
页 面
加工余量
未注几何公差
未注尺寸公差
Guangdong ePropulsion Technology Limited
广东逸动科技有限公司
材质 未
0220
2023/4/12N10024
N10074
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1 2 3
4
A
B
3 2 1
B
A
D
C
D
C
材质
机型
g
A3
图样名称
第 页
共 页
比例
重量
完成日期
单位:mm
页 面
加工余量
未注几何公差
未注尺寸公差
Guangdong ePropulsion Technology Limited
广东逸动科技有限公司
2023/4/12N10024
N10074
4
4

11
1.2 Parts and Diagram
Figure 1-1
Label
Driver
Water cooling
module
Communication
cable 10m
12V power
cable 5m
Cover
Output shaft
flange
Gearbox
Suspension
Motor
High voltage
power cable 2m
1.3 Specifications
Input power 20kW
Recommended battery ePropulsion Lithium Iron Phosphate Battery
Input voltage range 86~115V (high voltage);
9V~16V (low voltage)
Rated output torque 140N.m
Weight 49.5kg
Dimensions (L*W*H) 580*330*380mm
Cooling method Water cooling (air cooling)
Rated power rotational speed range 1200rpm~1700rpm

12
Operation/storage temperature -5℃ ~ 55℃ /-25℃~70℃
Operation and interaction mode Remote control, display panel
ePropulsion Connectivity Service Supported
Partial driver assistance Support route planning by dual motors
Vibration-damping components Four-point elastic rubber mount
It is suggested that the 12V battery is required to possess over 18A of continuous
discharge current.
When the voltage is below 96V, it will be an undervoltage alarm.
1.4 Instructions before Use
1. Only adults who have fully read and understood this manual are allowed to operate
this product. Read the full user manual carefully before operation, ePropulsion
accepts no liability for any damage or malfunction caused by operations violating this
manual.
2. Only boat owners who are familiar with their boats are allowed to use this inboard
motor. For a newly bought boat, the boat owner should learn all aspects of the boat
including how the boat behaves in different conditions and practicing controlling the
boat before mounting and operating this inboard motor.
3. Before operation, familiarize yourself with all the functions and operations of this
product. If there is more than one person onboard, make sure you are not the only
one onboard who knows how to operate this inboard motor to help in case of an
unforeseen emergency.
4. Follow boat builder’s instructions to mount this product to your boat. It is suggested
to have certified boat builders or professional installers to install this inboard motor
to your boat. Never try to install the inboard motor on your own if you never have
experience of mounting the inboard to your boat before.
5. Check the weather before operation. Avoid sailing in dangerous weather conditions.
6. If the inboard motor system is the only power source of your boat, make sure batteries
on board have enough power for your round trip. We recommend you to calculate
distance and battery consumption.

13
7. Chec k before each trip if there is enough safety e quipme nt inc luding bu t not limited to
enough life jackets, personal flotation devices, fire extinguishers, bells and whistles,
communication equipment, and paddles, etc. Check available local boating safety
requirements before operating.
8. If the inboard motor strikes other objects in the water, please stop running
immediately. Return to the nearest harbor and find your dealer for assistance.
9. Stop the inboard motor immediately if someone falls into water.
10.Only run the inboard motor while the propeller is underwater.
11.Every occupant of the vessel shall be fitted with a qualified life jacket (PFD). Wear a
life jacket when sailing. When operating, tie the cable of the safety switch to a firm
position such as hand, foot or clothing. If accidentally left the steering position, the
cable will drag the switch and stop the in-boat machine.
12.Before each voyage, please be sure to check the state and battery power of the engine
on board.
13.Please report the sailing plan to relevant personnel (dock and family members, etc.)
before leaving the port
14.When moving inside the ship, watch carefully for swimmers and stay away from them.
Stay away from swimming areas.
15.Do not cover the GPS and 4G external antenna to avoid signal attenuation.
16.The distance and speed values shown are measured by the Global Positioning System
(GPS) and may be subject to minor errors due to weak GPS signal or changes in
external environments such as ocean currents, wind, etc.
17.Familiarize yourself with all operations of the engine on board, including starting,
stopping, accelerating, decelerating, reversing, etc.
18.If the engine on board fails, the smart display will display an error message. Refer to
the detailed instructions and corresponding solutions.
19.For safety reasons, the system will automatically shut down during operation if the
motor or driver temperature is too high or the battery voltage is too low.

14
2 Unpacking steps and notices
2.1 Safety Notice
Use appropriate safety equipment, wear gloves, protection shoes and other safety
props;
Ensure that all safety and measures are understood before operation;
Due to the large weight of the product, ensure that at least two people operate;
2.2 Tools and equipment required for unpacking
Prepare unpacking tools, such as rubber hammer, screwdriver, etc.
Handling tools: wheelbarrow/forklift.
2.3 Check the packaging
Check the wooden case for obvious damage or transportation damage and record;
Verify that the label on the package is consistent with the product purchased;
2.4 Check the packaging
1. Carefully insert the forklift into the wooden bracket, ensure the wooden case is stable, and
move the wooden case to the appropriate unpacking area;
2. Straighten the iron sheet around the upper wooden cover plate with a tool and remove the
cover plate;
3. Remove the manual and maintenance card;
4. Take out the communication cable, 12V power cable, heat shrink tubes, high voltage bus
cable, accessory pack, bus bar in turn;
5. Remove the iron sheet of the package and remove the wooden frame;
6. Organize the machine communication cables and power cables;
7. Disassemble the accessory pack and remove the motor from the board with an open
wrench (17-19).
Pay attention to avoid damage to the product during unpacking. Check all accessories,
and confirm that accessories are all complete.
The package list refers to 1.1 In the Package

15
The composition of the package is shown below:
Figure 2-1
2.5 Remove the inner packaging and inspect the product
1. Remove the protective bubble bag of the motor and check whether there is any abnormal
appearance, such as deformation, scratching, etc.;
2. Unpack the motor cables (high-voltage power cables, 12V power cables, communication
cable) to check whether the cables are complete or damaged;
3. Open the bus bar package, and check whether the components are damaged, abnormal in
appearance, or missing;
4. Take out CAN communication extension cable, CAN communication cable, main power
cable, check whether the appearance is abnormal;
5. Sort out the motor, accessories, packaging and other related materials.
Check the product for broken or missing parts, if there is a problem, please contact
ePropulsion after-sales service for help.
Package cover
Communication cable
(comes with motor)
Heat shrink tube
Cushioning paper pad
High voltage bus
cable
Motor
Package
Stuffed cardboard
Packing tray Support block
Bus bar
Accessory
Package
12V power cable
Communication extension
cable & communication cable
User manual
Cardboard

16
2.6 Dispose of discarded packaging materials
1. Classify and recycle packaging materials, such as wood, paper, etc.
2. Follow local environmental regulations to dispose of waste materials.
Make sure to read the user manual that come with the product carefully.
Please follow the local material handling requirements to recycle the package,
reasonable disposal, to protect the environment.

17
3 Install the I-20 motor
3.1 Install the motor
The quality of installation plays a decisive role in the reliability of the whole system. Among
them, the output shaft in the center and the suspension is the most critical. If you want the
system to be stable and reliable, please refer to the following requirements for installation to
ensure that the equipment works in a good state.
3.1.1 Before installation
1. Check the materials:
① Motor: Check the I-20 machine structure to ensure that there is no loosening or
abnormality. Arrange the main power cables, 12V power cable, and communication cable and
fix them in appropriate positions for easy handling.
② Tools: Open-end wrench, wheelbarrow, gloves.
③ Accessories: 8 M10x45 hex bolts, 4 M10 hex nuts, 8 M10x18 hex bolts.
2. Confirm the drawing file of the motor:
I-20 dimensions are shown in the following. Before installation, please carefully check the size
to ensure sufficient installation space, accurate installation position, convenient adjustment,
to meet the installation requirements.
334mm
13.15in
383.5mm
15.1in
16mm 0.63in
49mm
1.93in
67mm 2.638in Standard size
60-75mm
[2.36-2.95in]
Adjustment range
581.1mm 22.88in
222mm 8.74in 210.25mm 8.28in
7mm
0.28in
137mm
5.39in
274mm 10.79in
11mm
0.43in
14mm
0.55in
60mm
2.36in
100mm
3.94in
100mm 3.94in
4X 10.50mm 0.41in
78mm
3.07in
C
C
8mm 0.31in
4mm 0.16in
44mm
1.73in
50mm

0.025

1.97in

 
DETALL OF FLYWHEEL
SCALE 1:2
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1 2 3
4
A
B
3 2 1
B
A
D
C
D
C
Guangdong ePropulsion Technology Limited
广东逸动科技有限公司
4
Figure 3-1

18
Suggestions for the mounting platform:
First, design the proper mounting platform according to the size model of the motor, the
space inside the ship and the position of the stern shaft. The size of the fastening hole of the
mounting platform is M10, and the size distribution is determined according to the position
of the fixing hole of the suspension support foot. The motor platform is firmly fastened to the
hull, and can bear a large thrust (greater than 7000N).
Pre-installation work:
① Confirm the motor model: motor size, weight, voltage, power and the current ship match;
② Design layout: read the user manual, need to consider the layout and design of the whole
system. Machine and related system components must be installed in the appropriate
position on the ship to ensure safe and efficient operation.
③ Simulate the installation process: according to the installation process of the user manual,
simulate the relevant process to ensure that the installation is feasible and the installation
process is low risk.
④ Clean the environment inside the ship: clean up irrelevant objects according to the
simulation process, keep dry and clean. Ensure that the installation process is smooth and
the commissioning process is normal.
Suggestions for lifting:
Before hoisting, sort out the cables and fix them on the motor. Suspend two feet around the
motor through the sling, complete the lashing of the rope, pass through the hook, adjust the
position of the hook, and test hoisting. In the test hoisting, the machine is stable without
tilting and shaking, then formal hoisting can begin.
1. Remove the cover. 2. Wrap the rope and hoist the machine
1 2 3
4
A
B
3 2 1
B
A
D
C
D
C
材质
机型
g
A3
图样名称
第 页
共 页
比例
重量
完成日期
单位:mm
页 面
加工余量
未注几何公差
未注尺寸公差
Guangdong ePropulsion Technology Limited
广东逸动科技有限公司
2023/4/10N10024
N10074
󰅔
4