SAJ HS-5K-S2 User manual

HS2/AS2 Series
Tel: [phone] Fax: [phone] Web: www.saj-electric.com
Add: SAJ Innovation Park,No.9, Lizhishan Road,Science City, Guangzhou High-tech Zone , Guangdong, P.R.China
GUANGZHOU SANJING ELECTRIC CO.,LTD
HS2/AS2 Series
SINGLE PHASE ALL-IN-ONE ENERGY STORAGE SYSTEM
USER MANUAL
HS2-3~6K-S2
AS2-3~6K-S
V0.0

HS2/AS2 Series
Preface
Thank you for choosing SAJ product. We are pleased to provide you first-class products and
exceptional service.
This manual includes information for installation, operation, maintenance, trouble shooting and safety.
Please follow the instructions of this manual so that we can ensure delivery of our professional guidance
and wholehearted service.
Customer-orientation is our forever commitment. We hope this document proves to be of great
assistance in your journey for a cleaner, greener world.
Please check for the latest version at www.saj-electric.com
Guangzhou Sanjing Electric Co., Ltd.

HS2/AS2 Series
1. SAFETY PRECAUTIONS ..........................................................................................................................1
1.1 Scope of Application........................................................................................................................................................ 2
1.2 Safety Instructions ............................................................................................................................................................ 2
1.3 Target Group.......................................................................................................................................................................2
2. PREPARATION .........................................................................................................................................3
2.1 Safety Instructions ............................................................................................................................................................ 4
2.2 Explanations Of Symbols................................................................................................................................................ 5
2.3 Battery Handling ............................................................................................................................................................... 6
2.4 Emergency Situation........................................................................................................................................................6
3. PRODUCT INFORMATION ......................................................................................................................9
3.1 Application Scope of Products...................................................................................................................................10
3.2 Specification for Product Model................................................................................................................................10
3.3 Overview of Productsl ...................................................................................................................................................10
3.4 Terminals Description ....................................................................................................................................................11
3.5 Datasheet ...........................................................................................................................................................................14
4. INSTRUCTIONS FOR INSTALLATION..................................................................................................17
4.1 Unpacking and Inspection ...........................................................................................................................................18
4.1.1 Checking the Package....................................................................................................................... 18
4.1.2 Scope of Delivery................................................................................................................................ 18
4.2 Installation and Position............................................................................................................................................... 20
4.2.1 Installation Position and Clearance ............................................................................................. 20
4.2.2 Mounting Method............................................................................................................................... 21
4.3 Mounting Procedure...................................................................................................................................................... 22
4.3.1 Installation Tools................................................................................................................................. 22
4.3.2 Mounting Procedure.......................................................................................................................... 23
5. ELECTRICAL CONNECTION .................................................................................................................33
5.1 Additional Grounding Cable....................................................................................................................................... 34
5.2 AC Grid Wire and Backup Output Connection.................................................................................................... 36
5.2.1 Earth Fault Alarm................................................................................................................................ 38
5.2.2 External AC Circuit Breaker and Residual Current Device.................................................. 38
5.2.3 Multiple Inverter Combinations..................................................................................................... 39
5.3 PV Side Connection........................................................................................................................................................ 40
5.4 Communication Connection....................................................................................................................................... 43
5.5 Connection Battery COMM Cable ............................................................................................................................ 46
5.6 Connecting Battery Power Cable ............................................................................................................................. 47
5.7 System Connection ...................................................................................................................................................... 48
5.8 System Connection Diagram...................................................................................................................................... 52
5.9 Installation of Side Covers of Battery Unit ........................................................................................................... 53
5.10 AFCI (Optional).............................................................................................................................................................. 54
6. COMMISSIONING...................................................................................................................................55
6.1 Start Up and Shut Down the Energy Storage System ..................................................................................... 56
6.1.1 Start Up .................................................................................................................................................. 56
6.1.2 Shut Down............................................................................................................................................. 56
6.2 Introduction of Human-computer Interface........................................................................................................ 57
6.3 Commissioning................................................................................................................................................................. 59
6.4 eSAJ APP Connection.................................................................................................................................................... 59
TABLE OF
CONTENTS

HS2/AS2 Series
6.4.1 Account Login.......................................................................................................................................59
6.4.2 Local Connection.................................................................................................................................61
6.4.3 Inverter Setting Review.....................................................................................................................63
6.5 Working Modes................................................................................................................................................................64
6.5.1 Selecting Working Modes Procedures........................................................................................64
6.5.2 Working Modes Instruction.............................................................................................................62
6.6 Export Limit Setting........................................................................................................................................................65
6.6.1 APP Setting............................................................................................................................................66
6.7 Self-test (For Italy)..........................................................................................................................................................66
6.8 Setting Reactive Power Control (For Australia)...................................................................................................68
6.8.1 Setup Fixed Power Factor Mode...................................................................................................68
6.8.2 Setup V-Watt and Volt-Var Mode................................................................................................70
7. MAINTENANCE ......................................................................................................................................73
7.1 Transportation..................................................................................................................................................................74
7.2 Storage................................................................................................................................................................................74
8. TROUBLESHOOTING and WARRANTY ..............................................................................................75

HS2/AS2 Series
1
2
SAFETY
PRECAUTIONS
1.1 Scope of Application
This User Manual describes instructions and detailed procedures for installing, operating, maintaining, and
troubleshooting of the following SAJ products:
HS2-3K-S2; HS2-3.6K-S2; HS2-4K-S2; HS2-5K-S2; HS2-6K-S2;
AS2-3K-S; AS2-3.6K-S; AS2-4K-S; AS2-5K-S; AS2-6K-S;
1.2 Safety Instructions
DANGER
·DANGER indicates a hazardous situation which, if not avoided, will result in death or serious injury.
WARNING
·WARNING indicates a hazardous situation which, if not avoided, can result in death or serious injury or moderate injury.
CAUTION
·CAUTION indicates a hazardous condition which, if not avoided, can result in minor or moderate injury.
NOTICE
·NOTICE indicates a situation that can result in potential damage, if not avoided.
1.3 Target Group
Only qualified electricians who have read and fully understood all safety regulations contained in this manual
can install, maintain and repair the device. Operators must be aware of the high-voltage device.
1.

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4
PREPARATION
2.1 Safety Instructions
For safety, be sure to read all the safety instructions carefully prior to any works, and please observe the
appropriate rules and regulations of the country or region where you installed all-in-one energy storage
system.
DANGER
· There is possibility of dying due to electrical shock and high voltage.
· Do not touch the operating component of the inverter; it might result in burning or death.
· To prevent risk of electric shock during installation and maintenance, please make sure that all AC and DC terminals
are plugged out.
· Do not touch the surface of the equipment while the housing is wet, otherwise, it might cause electrical shock.
· Do not stay close to the equipment while there are severe weather conditions including storm, lighting, etc.
· Before opening the housing, the SAJ inverter must be disconnected from the grid and PV generator; you must wait
for at least five minutes to let the energy storage capacitors completely discharged after disconnecting from power
source.
·Please keep the power off prior to any operations
·Do not expose the battery to temperatures in excess of 50°C.
·Do not subject the battery to any strong force.
·Keep inflammable and explosive dangerous items or flames away from the battery.
·Do not soak the battery in water or expose it to moisture or liquids.
·Do not use the battery in areas where the ammonia content of the air exceeds 20ppm.
WARNING
·Only qualified personnel who has full knowledge of local safety regulations and local standards on battery can install, maintain,
retrieve and process this product.
·SAJ electric shall not be liable for any loss or warranty claims arising from any unauthorized change of product which may cause
fatal injury to the operator, third party or equipment performance.
·For personal and property safety, do not short-circuit the positive (+) and negative (-) electrode terminals.
CAUTION
·Risk of damage due to improper modification
·Use professional tools when operating the products.
· The inverter will become hot during operation. Please do not touch the heat sink or peripheral surface during or
shortly after operation.
NOTICE
2.

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6
·During installation of the battery, circuit breaker must be disconnected from the battery pack wiring.
2.2 Explanations of Symbols
Symbol
Description
Dangerous electrical voltage
This device is directly connected to public grid, thus all work to the battery shall only be carried out
by qualified personnel.
No open flames
Do not place or install near flammable or explosive materials.
Danger of hot surface
The components inside the battery will release a lot of heat during operation. Do not touch metal
plate housing during operating.
Attention
Install the product out of reach of children
An error has occurred
Please go to Chapter 7 “Troubleshooting”to remedy the error.
This device shall NOT be disposed of in residential waste
This battery module shall NOT be disposed of in residential waste
CE Mark
Equipment with the CE mark fulfills the requirements of the Low Voltage Directive and Electro
Magnetic Compatibility.
Recyclable
2.3 Battery Handling
Operate and use the battery properly according to user manual, any attempt to modify battery without the permission from SAJ will void the
limit warranty for the battery.
•The battery must be installed at a suitable location with sufficient ventilation
•Do not use the battery if it is defective, damaged or broken.
•Only use the battery with compatible inverter.
•Do not use the battery with other type of battery.
•Make sure the battery is grounded prior to use.
•Do not pull out any cables or open the battery enclosure when the battery is powered on.
•Only use the battery as intended and designed.
2.4 Emergency Situation
Despite of its careful and professional protection design against any hazards, damage of the battery may still possible. If a small amount of
battery electrolyte is released due to a serious damage of the outer casing; or if the battery explodes due to not being treated timely after a fire
breaks out nearby, and leaks out poisonous gases such as carbon monoxide, carbon dioxide and etc., the following actions are recommended:
1）Eye contact: Rinse eyes with a large amount of running water and seek medical advice
2）Contact with skin: Wash the contacted area with soap thoroughly and seek medical advice
3）Inhalation: If you feel discomfort, dizziness or vomiting, seek medical advice immediately.
4）Use a FM-200 or Carbon Dioxide (CO2) fire extinguishers to extinguish the fire if there is a fire in the area where the battery pack is
installed. Wear a gas mask and avoid inhaling toxic gases and harmful substances produced by the fire.
5）Use an ABC fire extinguisher, if the fire is not caused by battery and not spread to it yet.

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WARNING
·If a fire has just occurred, try to disconnect the battery circuit breaker and cut off the power supply first, but only if you
can do so without endangering yourself.
·If the battery is on fire, do not attempt to extinguish the fire but evacuate the crowd immediately.
Potential danger of damaged battery:
Chemical Hazard: Despite of its careful and professional protection design against any hazard results, rupture of battery may still occur
due to mechanical damage, internal pressure etc., and may result in a leakage of battery electrolyte. The electrolyte is corrosive and flammable.
When there is fire, the toxic gases produced will cause skin and eyes irritation, and discomfort after inhalation. Therefore:
1) Do not open damaged batteries;
2) Do not damage the battery again (shock, fall, trample, etc.);
3) Keep damaged batteries away from water (except to prevent an energy storage system from catching fire);
4) Do not expose the damaged battery to the sun to prevent internal heating of the battery.
Electrical hazard: The reason of fire and explosion accidents in lithium batteries is battery explosion. Here are the main factors of battery
explosion:
1) Short circuit of battery. Short circuit will generate high heat inside battery, resulting in partial electrolyte gasification, which will stretch
the battery shell. The temperature reaching ignition point of internal material will lead to explosive combustion.
2) Overcharge of battery. Overcharge of battery may precipitate lithium metal. If the shell is broken, it will come into direct contact with the
air, resulting in combustion. The electrolyte will be ignited at the same time, resulting in strong flame, rapid expansion of gas and explosion.

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PRODUCT
INFORMATION
3.1 Application Scope of Products
The product is included a hybrid inverter/ AC-coupled inverter with battery and it is applied to residential photovoltaic energy storage system.
The energy storage system is able to store the energy for future use. It is built internally with a battery management system (BMS), which is used
to ensure efficiency of the battery and protect the battery from operating outside its specified limitations.
3.2 Specification for Product Model
HS2/AS2 –XK –S2/S
①②③
①HS2/AS2 represents for product name.
②XK represents rated energy XkW of storage system, for example, 5K means 5kW.
③S means single phase, S2 means single phase with 2MPPT.
3.3 Overview of Products
626
354
365
261
365
626
Figure 3.1
Dimensions of HS2/AS2 inverter and battery module
3.

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12
3.4 Terminals Description
Figure 3.2 HS2 Inverter unit interface (left view and right view)
Table 3.1 HS2 interface
Figure 3.3 AS2 unit interface (left view and right view)
Table 3.2 AS2 interface
Position
Name
1
B+/ B- port (to inverter)
2
Battery Switch
3
DC Switch
4
PV Input
5
Display
6
BAT+/BAT- port (for parallel connection)
7
Communication Port
8
Start button
9
BACKUP
10
Grid
11
Ground
12
Link Port 0 (to battery module)
13
4G/ Wi-Fi Module Port
14
Release Valve
Position
Name
1
B+/ B- port (to inverter)
2
Battery Switch
3
Display
4
BAT+/BAT- port (for parallel connection)
5
Communication Port
6
Start button
7
BACKUP
8
Grid
9
Ground
10
Link Port 0 (to battery module)
11
4G/ Wi-Fi Module Port
12
Release Valve
6
4
3
5
7
11
8910
2
1
12
8
6
4
3
2
1
5
7
9
13
10 11 12
14

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Figure 3.4 Battery module interface (left view & right view)
Code
Name
A
Link Port 0
B
Link port 1
C
Ground port
D
B- port
E
B +port
Table 3.3 Battery module interface
3.5 Datasheet
Inverter
Model
HS2-3K-S2/
AS2-3K-S
HS2-3.6K-S2/
AS2-3.6K-S
HS2-4K-S2/
AS2-4K-S
HS2-4.6K-S2/
AS2-4.6K-S
HS2-5K-S2/
AS2-5K-S
HS2-6K-S2/
AS2-6K-S
DC Input (For HS2-3-6K-S2 only)
Max. PV Array Power [Wp]@STC
4500
5400
6000
6900
7500
9000
Max. DC Voltage [V]
550
MPPT Voltage Range [V]
90~500
Rated DC Voltage [V]
360
Start Voltage/ Min. Input Voltage[V]
100
Max. DC Input Current [A]
16/16
Max. DC Short Circuit Current [A]
19.2/19.2
No. of MPPT
2
Battery Parameters
Battery Type
LiFePO4
Battery Voltage Range [V]
85~450
Max. Charging/Discharging Current [A]
30/30
Scalability
BU2-5.0-HV1/5 (up to 4 battery modules)
Short Time Withstand Current/
Conditional Short-circuit Current [A] (For
AS2-3-6K-S Series Only)
<10000
AC Output [On-grid]
Rated AC Power [W]
3000
3680
4000
4600
5000
6000
Max. Apparent Power [VA]
3300
3680
4400
4600
5500
6000
Rated Output Current [A]@230Vac
13.0
16.0
17.4
20.0
21.7
26.1
Max. Output Current [A]
15.0
16.0
20.0
20.0
25.0
27.3
Current Inrush [A]
100
Max. AC Fault Current [A]
55
Max. AC Over Current Protection [A]
55
Rated AC Voltage/Range [V]
L+N+PE, 220,230,240/180～280
Rated Output Frequency/Range [Hz]
50,60/45~55,55~65
Power Factor [cos φ]
0.8 leading～0.8 lagging
Total Harmonic Distortion [THDi]
<3%
AB
C
D
E

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16
Model
HS2-3K-S2/
AS2-3K-S
HS2-3.6K-S2/
AS2-3.6K-S
HS2-4K-S2/
AS2-4K-S
HS2-4.6K-S2/
AS2-4.6K-S
HS2-5K-S2/
AS2-5K-S
HS2-6K-S2/
AS2-6K-S
AC Input [On-grid]
Rated AC Voltage/Range [V]
L+N+PE, 220,230,240/180～280
Rated Input Frequency [Hz]
50,60
Max. Input Current [A]@230Vac
26.1
32.0
34.8
40.0
43.5
52.2
AC Output [Back-up]
Max. Output Power [VA]
3000
3680
4000
4600
5000
6000
Max. Output Current [A]
13.6
16.7
18.2
20.9
22.7
27.3
Peak Output Apparent Power [VA]
3600,60s
4416,60s
4800,60s
5520,60
6000,60s
7200,60s
Rated AC Voltage/Range [V]
L+N+PE, 220,230,240/180～280
Rated Output Frequency/Range [Hz]
50,60/45～55,55～65
Output THDv (@ Linear Load)
<3%
Efficiency
Max. Efficiency
97.6%
Euro Efficiency
97.0%
Protection
Battery Input Reverse Polarity Protection
Integrated
Over Load Protection
Integrated
AC Short Circuit Current Protection
Integrated
DC Surge Protection
Integrated
AC Surge Protection
Integrated
Anti-islanding Protection
Integrated
AFCI Protection
Optional
RSD Protection
Optional
Interface
PV Connection
MC4/H4
AC Connection
Plug-in connector
Battery Connection
Quick connector
Display
LED+APP
Communication
Wi-Fi/Ethernet/4G(Optional)
General Parameters
Topology
Non-isolated
Operating Temperature Range
-10～50℃, >45 ℃derating
Cooling Method
Natural Convection
Ambient Humidity
0-100% Non-condensing
Altitude
4000m (>3000m Power Derating)
Noise [dBA]
<35
Model
HS2-3K-S2/
AS2-3K-S
HS2-3.6K-S2/
AS2-3.6K-S
HS2-4K-S2/
AS2-4K-S
HS2-4.6K-S2/
AS2-4.6K-S
HS2-5K-S2/
AS2-5K-S
HS2-6K-S2/
AS2-6K-S
Ingress Protection
IP65
Dimensions [H*W*D] [mm]
354*626*365
Weight [kg]
25 (HS2), 23.7 (AS2)
Warranty [Year]
5/10/15/20
Standard
EN62109-1/2, EN61000-6-1/2/3/4, EN50438, EN50549, C10/11, IEC62116, IEC61727, RD1699, RD413, UNE
206006, UNE 206007, NTS, CEI 0-16, AS4777.2, NBR16149, NBR 16150 VDE-AR-N 4015, VDE 0126-1-1
Battery
Model
BU2-5.0-HV1/
BU2-5.0-HV5
BU2-10.0-HV1/
BU2-10.0-HV5
BU2-15.0-HV1/
BU2-15.0-HV5
BU2-20.0-HV1/
BU2-20.0-HV5
Battery Module
BU2-5.0-HV1/5 (1P32S 102.4V 50Ah)
No. of Modules
1
2
3
4
Rated Energy [kWh]
5.0
10.0
15.0
20.0
Usable Energy [kWh]
4.5
9.0
13.5
18.0
Dimension (H*W*D)[mm]
261*626*365
522*626*365
783*626*365
1044*626*365
Weight [kg]
50.5/52.5
101/105
151.5/157.5
202/210
Nominal Voltage [V]
102.4
204.8
307.2
409.6
Operating Voltage [V]
89.6～115.2
179.2～230.4
268.8～345.6
358.4～460.8
Max. Charge Current [A]
30
Max. Discharge Current [A]
30
General Data
Ingress Protection
IP65
Mounting
Wall-Mounted / Ground-Mounted
Operating Temperature Range
Charging: 0～50℃; Discharging: -10～50℃
Ambient Humidity
0～95% non-condensing
Cooling Method
Natural convection
Communication
CAN
Warranty [Year]
5/10
Applicable Standard
IEC62619(Cell&Pack)/EN62477-1/EN61000-6-1/2/3/4/UN38.3

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INSTRUCTIONS FOR
INSTALLATION
4.1 Unpacking and Inspection
4.1.1 Checking the Package
Although SAJ’s product have thoroughly tested and checked before delivery, it is uncertain that the product
may suffer damages during transportation. Please check the package for any obvious signs of damage, and if
such evidence is present, do not open the package and contact your dealer as soon as possible
4.1.2 Scope of Delivery
Please contact after sales if there are missing or damaged components.
Inverter Package
HS2/AS2 Inverter*1
M6*12 screw*6
Expansion bolt M8*80
screw*2
Documents
Locking bracket
(inverter)*2
Locking bracket (wall)
*2
PV connector*4 (For
HS2 inverter only)
Battery connector*2
Grid connector*1 &
assembly and
disassembly tool
Backup connector*1 &
assembly and
disassembly tool
Power cable*1
(1450mm)
Power cable*1
(650mm)
Grounding cable*1
4.

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20
Power cable*1
(150mm)
RJ 45 plug*1
COMM cable*1
Communication
module*1 (Optional)
The documents include the user manual and packaging list.
Battery Module Package
Battery module*1
Side cover*2
M4*25 screw*4
Power cable*2
COMM cable*1
Locking bracket*2
Grounding cable*1
M4*10 screw*4
4.2 Installation Method and Position
4.2.1 Installation Position and Clearance
This device is cooled by natural convention and suggested an indoor installation or an installation under a
sheltered place to prevent the product from exposure to direct sunlight, rain and snow erosion.
Figure 4.1
Installation location
Please reserve enough clearance around the product to ensure a good air circulation at the installation area.
Because poor air ventilation will affect the working performance of internal electronic components and
shorten the service life of the system.
Figure 4.2
Installation clearance
Keep away from sunlight Keep dry Keep it clear of snow Sun Rain Accmulated snow

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22
4.2.2 Mounting Method
Figure 4.3
Mounting method
①The equipment employs natural convection cooling, and it can be installed indoor or outdoor.
④Mount vertically. Never install the device tilted forwards, sideways, horizontally or upside down.
⑤When mounting the device, please consider the solidity of wall for product, including accessories, make
sure the wall has enough strength to hold the screws and bear the weight of products. Please ensure the
mounting bracket mounted tightly.
Installation Environment Requirements
•The installation environment must be free of inflammable or explosive materials.
•Install the device away from heat source.
•Do not install the device at a place where the temperature changes extremely.
•Keep the device away from children.
•Do not install the device at daily working or living arears, including but not limited to the following areas:
bedroom, lounge, living room, study, toilet, bathroom, theater and attic.
•When installing the device at the garage, please keep it away from drive way.
•Keep the device from water sources such as taps, sewer pipes and sprinklers to prevent water seepage.
•The product is to be installed in a high traffic area where the fault is likely to be seen.
Note: When installing outdoors, the height of the device from the ground should be considered to prevent the
device from soaking in water. The specific height is determined by the site environment.
4.3 Mounting Procedure
4.3.1 Installation Tools
Installation tools include but are not limited to the following recommended ones. Please use other auxiliary
tools on site if necessary.
Marker Measuring tape Utility knife
Multimeter
Measurement
range: 1100Vdc
Protective gloves Dust mask Earplugs Goggles
Insulated shoes
Heat shrink tubing Heat gun Hammer drill Drill
bit: Φ10 Rubber mallet
Phillips screwdriver
Wrench
√×
× × ×

HS2/AS2 Series
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4.3.2 Mounting Procedures
The product employs either ground mounting or wall mounting and its position is determined by the drilled
holes of bracket.
Ground Mounting
The ground should be flat and no inclination.
Step 1: Assemble the base. Adjust the height of foot cup, make sure the surface of base is horizontal.
Figure 4.4
Assembling the base
Step 2: Place the base on the ground, make sure the edge of base is 28~34mm away from wall. Place the
battery module on the base and secure it with screws (M4*10).
Figure 4.5
Securing the battery
Step 3: Stack the rest of the battery modules up and secure the battery modules with locking brackets
(M4*10)
Figure 4.6
Securing battery modules
with locking brackets
Step 4: Install the locking brackets (inverter) with screws (M6*12) onto the inverter, and then install the
locking brackets (wall) onto the locking brackets (inverter) with screws (M6*12).
Figure 4.7
Securing inverter
1
2

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26
Step 5: After the battery modules installation, mark the proper positions of inverter and drill holes (10mm in
diameter, 65mm in depth) on those positions by using the inverter as a template. Remove the rubber feet for
the top battery module before installing inverter.
Figure 4.8
Drilling holes to install
inverter
Step 6: Use a rubber hammer to drive the screw fixing seat into the holes to fix the bracket，use the wrench to
tighten the screws (M8*80 screw) to secure the inverter. Secure the inverter and battery with locking brackets.
Figure 4.9
Installing inverter
Remove Rubber foot

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28
Wall Mounting
Make sure that the wall is capable of mounting screws and supporting the weight of the battery pack before
installation. For safety reason, solid wall is recommended for wall mounting, cavity wall and timber wall are
not allowed to install the battery system.
Step 1: Assemble the bracket and secure it with screws
Figure 4.10
Assembling the bracket
Step 2: Mark the proper positions of mounting bracket and drill holes on those positions (14mm in diameter,
65mm in depth) by using the mounting bracket as a template, and then use a rubber hammer to drive the
screw fixing seat into the holes to fix the bracket.
Note: It is recommended to leave no gap between the bracket and ground.
Figure 4.11
Drill holes’dimensions of
bracket

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30
Step 3: Install the battery module on the bracket, make sure the battery module position fits with the position
of rubber feet on bracket, and use a screw (M4*10) to secure it with locking brackets.
Figure 4.12
Install the locking bracket
Step 4: Install the locking brackets (inverter) with screws (M6*12) onto the inverter, and then install the
locking brackets (wall) onto the locking brackets (inverter) with screws (M6*12).
Figure 4.13
Securing inverter
1
2

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32
Step 5: After the battery modules installation, mark the proper positions of inverter and drill holes (10mm in
diameter, 65mm in depth) on those positions by using the inverter as a template. Remove the rubber feet for
the top battery module before installing inverter.
Figure 4.14
Drilling holes for installation of
Inverter
Step 6: Use a rubber hammer to drive the screw fixing seat into the holes to fix the bracket，use the wrench to
tighten the screws (M8*80 screw) to secure the inverter. Secure the inverter and battery with locking brackets.
Figure 4.15
Installing inverter
Remove Rubber foot