Soluna S4 EU-A36 User manual

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User Manual
Home Energy Storage System
Soluna S4 EU-A36
Oct.2020| Revision A.1

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About this manual
This manual describes how to install the Soluna S4 EU-A36. Reading this manual
before you attempt to install the product, and following the instructions throughout the
installation process. If you are uncertain about any of the requirements,
recommendations, or safety procedures described in this manual, contact Soluna
immediately for advising and clarification. The information included in this manual is
accurate at the time of publication. however, with regards to the product design and
technical specification updates, our company reserves the right to make changes at
any time without prior notice. e. In addition, the illustrations in this manual are meant
to help explain system configuration concepts and installation instructions. The
illustrated items may different from the actual items at the installation location.

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Content
1.Safety precautions................................................................................................5
1.1 Warning signs.......................................................................................................6
1.2 Safety guide.........................................................................................................7
1.2.1 Transportation and installation...........................................................................8
1.2.2 Grid-tied operation.............................................................................................8
1.2.3 Maintenance and replacement ..........................................................................9
1.2.4 What to do after scrapping ................................................................................9
2.Product Introduction...........................................................................................10
2.1 Features.............................................................................................................10
2.2 Application..........................................................................................................10
2.3 Outline Dimensions............................................................................................11
2.4 Functional description ........................................................................................12
2.4.1 basic principle of Soluna S4 EU-A36...............................................................12
2.4.2 Working mode.................................................................................................13
2.5 Technical data ....................................................................................................13
2.5.1 Technical data of System.................................................................................13
2.5. 2 Technical data of battery module....................................................................14
2.6 Appearance........................................................................................................16
3.Installation...........................................................................................................19
3.1 Installation tools..................................................................................................19
3.2 Installation spacing.............................................................................................20
3.3 Wire specifications .............................................................................................20
3.4 Installation step..................................................................................................20
3.4.1 Unpacking confirmation...................................................................................20
3.4.2 Basic installation requirement..........................................................................21
3.4.3 Installation procedures ....................................................................................22
4.How to operate Soluna........................................................................................31
4.1Turn on or turn off Soluna S4 EU-A36 system.....................................................32
4.2 How to operate LCD screen (user screen)..........................................................33
4.2.1 Position of LCD ...............................................................................................33
4.2.2 How to check the information of LCD screen...................................................34
4.2.3 How to check the information of “Status” icon..................................................34
4.2.4 How to Setting parameters of Soluna system..................................................36
4.2.5 How to check the information of “Data” icon. ...................................................40
4.2.6 How to check the production information of Soluna system.............................42
4.2.7 How to Check the fault information..................................................................42
5.How to operate the LCD (only for installer).......................................................43
5.1 battery parameter setting....................................................................................43

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5.2 Grid parameters setting......................................................................................45
5.3 Others................................................................................................................46
6.Caution.................................................................................................................47
7.Troubleshoot .......................................................................................................48
8.How to use the generator & AC couple function...............................................52
9.Contact us............................................................................................................52

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1 Safety precautions
Energy storage integrated machines are designed and tested strictly in accordance
with relevant international safety standards. As an electrical and electronic device, all
relevant safety regulations must be strictly complied during installation, operation, and
maintenance. Incorrect use or misuse may result in:
●Injury to the life and personal safety of the operator or other people.
●Damage to the machine or other property belongs to the operator or otherpeople.
●This chapter mainly various warning symbols in operation manual and provides
safety instructions for the installation, operation, maintenance and use of energy
storage integrated machines.
Statement
Our company will not responsible for any consequence caused by any of the following
events.
●Damage caused by transportation.
●The storage conditions do not meet the requirements specified in the manual,
resulting in damage.
●Incorrect storage, installation, and use.
●Unqualified personnel install and operate the machine.
●Failure to comply with the operation instructions and safety precautions in this
manual.
●Operate in extreme environments which are not covered in this manual.
●Exceed the operation range of parameters that specified in the technical
specification.
●Unauthorized disassembly, modification, or modification of the software code.
●Device damage caused by abnormal natural environment (force majeure, such as
lightning strikes, earthquakes, fires, storms, etc.)
●Warranty expiration without extension of the warranty service.
●Installation or use in environment which are not specified in related international
standards

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1.1 Warning signs
Warning signs are used to warn you about the conditions that may cause severe
injury or damage to the device. They instruct you to exercise caution to prevent
danger. The following table describes the warning signs used in this manual.
Sign
Name
Description
Danger
Serious physical injury or even death may occur if
related requirements are not followed
Warning
Physical injury or damage to the devices may occur if
related requirements are not followed.
Electrostatic
discharge
Damage may occur if related requirements are not
followed
Hot sides
Sides of the device may become hot. Do not touch.
Note
Note
Steps to take for ensuring the proper running of the
device.

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1.2 Safety guide
• After receiving this product, first confirm the product package is intact.
If any question, contact the logistic company or local distributor
immediately.
• The installation and operation of the machine must be carried out by
professional technicians who have received professional trainings, and
thoroughly familiar with all the contents in this manual and the safety
requirements of the electrical system.
• Do not carry out connection/disconnection, unpacking inspection and
unit replacement operations on the machine when power source is
applied. before wiring and inspection, users must confirm the breakers
on DC and AC side of inverter are disconnected and wait for at least 10
minutes
• Ensure there is no strong electromagnetic interference caused by other
electronic or electrical devices around the installation site.
• Do not refit the machine unless authorized.
• All the electrical installation must conform to local and national
electrical standards.
• Ground with proper technics before operation
• Do not open the surface cover of the machine unless authorized. The
electronic components inside the machine are electrostatic sensitive.
Do take proper anti-electrostatic measures during authorized operation.
• Do not touch the housing of the machine or the radiator to avoid scald
as they may become hot during operation
• The machine needs to be reliably grounded.
• Ensure that DC and AC side circuit breakers have been disconnected
and wait at least 10 minutes before wiring and checking.
Note: Technical personnel who can perform installation, wiring, commissioning,
maintenance, troubleshooting and replacement of the energy storage inverters must
meet the following requirements:
• Operators need professional training.
• Operators must read this manual completely, and master the related safety
precautions.
• Operators need to be familiar with the relevant safety regulations for electrical
systems.
• Operators need to be fully familiar with the composition and operating principle of the
entire energy storage system, and related standards of the countries/regions in which
the project islocated.
• Operators must wear personal protective equipment.

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1.2.1 Transportation and installation
1.2.2 Grid-tied operation
Note
• Only qualified electricians are allowed to operate the machine under
the permission of local power departments.
• All electrical connections must meet the electrical standards of the
countries/regions in which the project is located.
• Ensure reliable installation and electrical connection before operation.
• Do not open the cover of the machine when the machine is working or
any circuit is connecting to the machine.
• Keep the package and unit complete, dry and clean during storage
and transportation.
• This machine is heavy. Please remove and install it with at least
Two people.
• To ensure the normal and safe operation of the energy storage
integrated machine and avoid personal injury, please select proper
handling and installation tools, and take mechanical protection
measures to protect personal safety, such as wearing smashing
shoes, coverall and so on.
• Only qualified electricians are allowed to install the machine.
• Do not put and install the machine on or close to flammable or
explosive materials.
• Do not install the machine in a place where children and other people
can easily touch it.
• To avoid a risk of electric shock, please remove rings, bracelets, and
other metal jewelry on your hands before installation and electrical
connection.
• The solar cell modules exposed to the sunlight may generate
dangerous voltage. Users must cover the cell modules with fully light
shading materials before electrical connection.
• The input voltage of the machine should not exceed the maximum
input voltage, otherwise damage may occur.
• The machine is not suitable for the positive or negative grounding
systems of solar cell modules.
• Ensure the proper grounding of the inverter.
• Ensure reliable installation and electrical connection.

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1.2.3 Maintenance and replacement
• Only qualified electricians are allowed to perform the maintenance,
inspection, and component replacement of the machine.
• Please contact the distributor or manufacturer for maintenance.
• In order to avoid irrelevant personnel from entering the maintenance
area during maintenance, temporary warning signs must be placed
to warn non-professionals to enter or use fence for isolation.
• Before carrying out any maintenance operations, all input power to
the machine must be disconnected first, and wait for at least 5
minutes until the internal parts of the machine are fully discharged.
• Please follow the electrostatic protection norms, and take correct
protective measures because there are mostly electrostatic
sensitive circuits and devices in the machine.
• Do not use parts and components not provided by our company
during maintenance.
• Restart the machine after eliminating the faults and problems which
may affect the safety and performance of the machine.
• Do not get close to or touch any charged metal conductor parts of
the grid or running system, otherwise electric shock or fire may
occur. Please do not ignore the warning icons and instructions with
“electric shock”.
1.2.4 What to do after scrapping
• Do not dispose of the machine together with household waste. The
user has the responsibility and obligation to send it to the designated
organization for recycling and disposal.

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2 Product Introduction
Soluna S4 EU-A36 Home Energy Storage System can connect with solar power
generation system, which ensure the users can use environmentally-friendly energy
24 hours at any time. ESS store the energy generated by PV, and uses it whenever
needed, not only reduce the purchase of electricity from the grid, but also improves
the household energy self-consumption and saves the electricity cost. Soluna
integrated energy storage solve solution, help users with achieving maximize the
self-use of green energy.
2.1 Features
●intelligent power management
●Simple user controls, power data history analysis, and programming
●Capacitive touch screen interface
●Secure battery access door
●height-adjustable threaded appliance-grade feet for stability and level appearance
2.2 Application
●Self use
●Peak Shaving
●Emergency power

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2.3 Outline Dimensions
Figure 2.1 outline dimension
Width
700
mm
Depth
340
mm
Height
1230
mm
Weight
145
kg

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2.4 Functional description
2.4.1 basic principle of Soluna S4 EU-A36
Figure2.2 basic principle of Soluna S4 EU-A36

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2.4.2 Working mode
Soluna S4 EU-A36 has the following working modes for your home energy
storage system.
Mode 1: In daytime, PV power will charge the battery in priority, if battery is full, PV
power is used to power the loads, then excess power sell to the grid.
Mode 2 : At night time, Battery power the loads, if battery is not sufficient, grid will
supplement.
Mode 3 : If grid malfunction or in no grid region, PV and battery can power the loads
together.
Mode 4 : When the battery is low and PV power is unavailable. Grid can charge the
battery and at the same time, Grid will power the loads.
Mode 5 : Generator can charge the battery bank.
Mode 6 : If Time Of Use function is enabled, will ensure battery remaining power and
grid sell power is adjustable.
Mode 7: UPS Function can ensure important loads still powered in case grid suddenly
fail down.
2.5 Technical data
2.5.1 Technical data of System
PV input
Max. recommended DC power （W）
3600
Max. DC voltage （V）
500
Nominal DC operating voltage （V）
360
Start-up Voltage （V）
150
MPPT voltage range （V）
125-425
Vdc range @ full power (Vdc)
300-425
Max. input current （A）
11
Max. short current （A）
16
Number of MPPT trackers
1
Strings per MPPT tracker
1
AC Input & AC Output
Normal Voltage (VAC)
230,Single phase(L/N/PE)
Frequency (Hz)
50
Max.AC output current (A)
18
Max. AC input current (A)
18
Max. continuous Power (kW)
3.6
Power factor range
-0.8～+0.8
Off-Grid AC Output
Normal Voltage (VAC)
230,Single phase(L/N/PE)
Frequency (Hz)
50
Max.AC output current (A)
18
Max. continuous Power (kW)
3.6

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Peak Power
1.5 times of Max. continuous Power,
(10S)
Power factor range
-0.8～+0.8
Battery data
Battery type
Lithium(LFP)
Module number
1
Nominal Storage capacity (kWh)
3.84
Usable Storage Capacity (kWh)
3.07
Battery capacity (Ah)
75
Normal voltage (V)
51.2
Voltage range (V)
42-58
Max. charge current (A)
50
Max. discharge current (A)
50
DOD
80%
Cycle life
6000
Regular parameters
Protective class
Class I
Overvoltage category
OVC II(PV) , OVCIII(AC main Grid)
Dimension (mm)
W*D*H=700*340*1230
Weight (kg)
145
Display
7'' graphic LCD
Communication
WIFI,CAN
Operating temperature range (°C)
-10～+40
(＞45℃derating)
Storage stability range (°C)
-20～+60
Relative humidity
0~95%
Altitude (m)
<2000
Cooling methods
Forced airflow
Ingress protection
IP20
Condition
Indoor conditioned
Certificates
IEC62109
AS/NZS 60950.1
EN61000-6-1:2007
EN61000-6-3:2007/+A1
CE-LVD EN 62477-1: 2012+ALL: 2014
Warranty
Please refer to SOLUNA WARRANTY CONDITIONS
2.5. 2 Technical data of battery module
Physical Characteristics
Width
205 mm
Depth
678 mm

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Height
436 mm
Weight
60 kg
Electrical Characteristics
Battery type
LFP
Total Energy Capacity
3.84 kWh
Usable Energy Capacity
3.07 kWh
Battery Capacity (Nominal)
75 Ah
Nominal Voltage
51.2 V
Usable Voltage Range
48~57.6 V
Charge Current (Recommended)
37.5A
Discharge Current (Recommended)
37.5A
Max. Continuous Charge Current
50A
Max. Continuous Discharge Current
50A
DOD
80%
Internal resistance
≤60 mΩ
Cycle life @ 25℃
(under standard charge and discharge
conditions，charge 0.2C,discharge 0.2C)
≥6000
DC Disconnect
Contactor
Fuse
Warranty
Please refer to SOLUNA WARRANTY CONDITIONS
BMS
Power consumption
<3W (work),
<100mW (sleep)
Monitoring parameters
System Voltage
System Current
Cell Voltage
Cell temperature
Communication
CAN
Protection
Over voltage
Under Voltage
Over current
Over temperature
Under temperature
System Configuration
Module parallel
1~4 Parallel
Operating Conditions

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Installation Location
Indoor
Operating Temperature
-10~45 ℃
Operating Temperature (Recommended)
15~30 ℃
Storage Temperature
-20~60 ℃
Humidity
5%~95%
Altitude
Max. 2,000 m
Cooling Strategy
Natural Convection
Reliability & Certification
Certificates
Cell：UL1642
Battery Module:IEC62619 / UL1973
Transportation
UN38.3
Ingress Rating
IP20
2.6 Appearance
Figure 2.3 Appearance
Number
Name
Remark
①
Soluna brand
②
LCD panel
①
②

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Figure 2.4 Appearance
Number
Name
Remark
①
FAN outlet
②
FAN outlet
③
Emergency Stop
④
Handle
⑤
Entry port
⑥
Label
①
③
②
④
⑤
⑥

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Figure 2.5 Appearance
Number
Name
Remark
①
Door lock of system
②
Door Key
①
②

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3 Installation
3.1 Installation tools
Item
Photo
Remark
1
Marking pen
2
Impact drill(φ12 mm)
3
Steel tape
4
Torque wrench
(Opening size:13mm)
5
Phillips-screwdriver
(M6,M8)
6
Straight screwdriver
7
Multimeter
8
Safety gloves
9
Safety goggles
10
Dust mask
11
Safety shoes

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3.2 Installation spacing
In order to ensure good ventilation of the energy storage integrated machine,
please reserve enough installation spacing around the machine during
installation.
Position
Min spacing
Remark
Side spacing
100cm
Back spacing
10cm
It needs to be installed against the wall
Note: For detailed requirements about the narrowest maintenance channel, escape
route, etc., refer to the applicable standards of the country/ region where the
project is located.
3.3 Wire specifications
In order to standardize the specification of ac and dc connectors or terminals of
compatible inverters, the following requirements are required for connecting ac
and dc wires of corresponding types of inverters
PV side
GRID side
Load
It is recommended to use 4
mm²of wire
It is recommended to use 4
mm²of wire
It is recommended to use 4
mm²of wire
3.4 Installation step
3.4.1 Unpacking confirmation
Before unpacking, check carefully whether the product information in the order is
consistent with that on the nameplate of the package box, and whether the product
package is intact. If there is any question, please contact the supplier timely.
Store the idled machine in its original package, and take anti-moisture and anti-dust
measures. after taking the machine out of the box, check the following items:
Item
Name
Qty (pcs)
Remark
1
System case
1
2
Battery module
1
3
key
1
4
Screws-M6*12
10
5
Screws-M5*8
1
6
Screws-M4*6
6
7
Expansion bolts-M8*100
4
8
Module mounting bracket
1
9
Wall mounting bracket
1
10
PV connector removal tool
1