BYD MINI ES Battery Base User manual
Mini ES 3kW
INSTALLATION MANUAL
2
1. Introduction 3
1.1 Brief Description 3
1.1.1 Functions 4
1.2 Foreseeable Misuse 4
1.3 Standards and Authentication 5
1.4 About this Manual 5
1.5 Abbreviations 6
2. Safety Requirements 6
2.1 Installer 6
2.1.2 Responsibilities 7
2.2 Location 7
2.2.1 Room Requirements 7
2.2.2 Room sizes 8
2.2.3 Ceiling, Ground and Wall Requirements 8
2.2.4 Temperature and Humidity 8
2.2.5 Access Rights 8
2.2.6 Pollution Grade 9
2.2.7 Protection Type 9
2.3 Safety Signs on the Device 9
2.4 Electrical Protection 9
2.5 Basic Safety Information 10
2.5.1 Risk of Fatal Injury 10
2.5.2 Risk of General Injury 11
2.5.3 Further Safety Information 12
2.6 Safety in Transportation 13
3. Technical Description 14
3.1 Scope of Supply 14
3.2 Nameplate 14
3.3 System Overview 15
3.4 Overview of Functions 15
3.5 Product Information 16
3.5.1 Appearance 16
3.5.2 Size introduction 17
3.5.3 Interface introduction 17
3.6 Button Functions 18
3.6.1 Power on Function 19
3.6.2 Power off Function 19
3.6.3 “Local” Control Function 19
3.6.4 Maintenance Charge Function 19
4. Installation 21
4.1 The Installation Process 21
4.1.1 Safety Introduction 22
4.3 Check the Packing 23
4.4 Devanning 23
4.4.1 The Steps of Devanning 23
4.5 Fitting the Mini ES 27
4.5.1 Installing the Fixed Bolts 27
4.5.2 Fix the system 28
4.6 Wiring 32
4.6.1 Wiring Diagram 32
4.6.2 Wiring Criteria 32
4.6.3 Cable Requirements 33
4.6.4 General and Important Load Distribution Plate Wiring 34
4.6.5 Install Transformer 35
4.6.6 Further Wiring 36
4.6.6.1 Shell Connection Interface 36
4.6.6.2 Internal Wiring 37
4.6.7 Connecting Ethernet Cable to the Clients Router 39
4.6.8 Connecting the Breaker 40
4.7 Commissioning and APP 40
4.7.1 APP download 41
4.7.1.1 Use for Android and IOS 41
4.7.1.2 Post Download 41
4.7.2 APP User Registration 41
4.7.3 Commissioning 42
4.7.3.1 Commissioning Process 42
4.7.3.2 Pre Commissioning Checks 43
4.7.3.3 Check Cable Resistance 43
4.7.3.4 Check CT 44
4.7.3.5 Check Mini ES Wiring 44
4.7.3.6 Check the Ethernet Wiring 44
4.7.4 Supply, Power and Start-up 45
4.7.4.1 Status Check 45
4.7.5 Check APP Functions 46
4.7.6 Start-up and Tidy 46
5. Installation Schedule 47
5.1 Installation Tool List 47
5.3 After sales 49
3
1. INTRODUCTION
Thank you for purchasing the BYD Mini ES storage system. We
hope our product meets your expectations. We would be grateful
for any feedback you can give us regarding the performance and
functionality of our product or service, so that we can continually
improve our products and satisfy your needs.
1.1 Brief description
This system has been developed as an electricity storage product to work alongside and
compliment a Solar PV installation. It will minimize export of surplus power to the grid, and lower
a properties import from the grid. The batteries prime purpose is to store excess solar generation
up to the total installed capacity of the energy storage system.
Note: It is an installer’s responsibility to size a battery storage system correctly against the
Basic Mini ES layout diagram:
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1.1.1 Functions
The primary functions of the Mini ES are asfollows:
• Storing excess electricity generated by a Solar PV system. If the generation is lower than
the load on the property, power can be drawn out of the Mini ES to supplement the Solar
PV supply to the property.
• In the event of a loss of grid power to a property the Mini ES can provide up to 2kW
of power to an emergency load circuit connected to the Mini ES. This can be used to
power home appliances.
• A smart phone and/or desktop app can be used to monitor the systems performance
real time from anywhere in the world, subject to connectivity.
Below is an example of solar generation vs a properties electricity usage showing waste of
generated solar power through export to the grid:
1.2 Foreseeable misuse
The Mini ES should only be used for the purpose intended. Any installations carried out with
deviations from this guide may affect the product warranties and/or performance. The equipment
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1.3 Standards and authentication
The Mini ES is compliant with all the standards listed in the table below.
1.4 About this manual
product.
The manual is applicable throughout storage, transportation, siting, assembly, installation, and
commissioning of the Mini ES.
This manual is intended for use by the installer of the Mini ES and not the home consumer.
It contains important information for the installation of the Mini ES.
Please read the manual carefully before the transportation, installation, operation, or maintenance
of the Mini ES. Failure to do so may result in damage to the product, injury to the operator, or
damage to a consumer’s property.
This manual should be accessible to the installer at all times.
Please take note and understand the following safety alarm signs before reading the manual:
Denotes an extraordinarily hazardous situation
This warning symbol indicates an immediate danger, which can lead to severe injury and death.
Denotes a very dangerous situation
This warning symbol indicates a potentially dangerous situation, which could lead to
severe injury or death.
Authentication item Standard
Saftey
EN62477-1 : 2012/A11:2014
IEC 62477-1(ed.1)
EN 62040-1:2008/A1:2013
IEC 62040-1(ed.1); am 1
EMC EN61000-6-3:2007+a1:2011
EN61000-6-2:2005
On-grid
VDE-AR-N4105:2011
DIN VDE 0126-1-1:2013
DIN V VDE V 0124-100:2012
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Denotes a dangerous situation
This warning symbol indicates a potentially dangerous situation, which could lead to minor injury.
Denotes a risk of material damage
This warning symbol indicates a situation that could lead to material damage.
1.5 Abbreviations
Abbreviation Content
PV Photovoltaic System
CT Current Transformer
APP Application
DOD Depth of Discharge
SOC State of Capacity
ESS Energy Storage System
2. SAFETY REQUIREMENTS
2.1) Installer
•
necessary knowledge, and who has been trained in all aspects of installing and
operating the Mini ES.
•
connection of the Mini ES to a properties electrical supply.
• The operator must be able to protect and maintain the device according to
safety standards.
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2.1.2 Responsibilities
The operator must ensure that:
Any illegible warning and safety signs on the device should be replaced as soon as possible.
•
• The device should not be covered.
• The device must be placed on a platform that is strong enough to supportit.
• Transportation, assembly, installation and commissioning of the device must be carried
• Transportation, assembly, installation and commissioning of the device must be carried
• Technicians are responsible for carrying out suitable risk assessments and working
within all UK Health & Safety requirements.
• Only authorised and trained electricians can carry out the installation, commissioning
and change settings and connections of the device.
• The software, shell and components of the device can not be changed without t h e
approval of the manufacturer; otherwise the warranty will beinvalid.
• If the seal is broken by unauthorised action, the warranty will be invalid.
• The installation and operation of the Mini ES must follow the steps outlined in the
installation manual. If these steps are not followed the warranty will be invalid.
The electrician must ensure that: before commissioning and connecting the breaker, the electrician
should understand all the basic information, especially the safety aspects of installing the unit:
• No changing of the size and the rating of the fuse.
• Before carrying out any electrical operations, the device must be effectively measured
• Before installation, read the operation manual and when using any further equipment,
make sure it conforms to the applicable UK standards.
• Don’t dismantle the device when it is operating.
2.2 Location
The desired location for the install needs to be decided before the storage system is
delivered. You must ensure that the installation location that you choose meets the
following conditions:
2.2.1 Room requirements
• Dry and closed.
•
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•
• There is a small amount of noise emitted from the Mini ES. Although there is
only a small amount of noise emitted, 40 decibels, place in a location that will
not disturb the homeowner.
• The location temperature must never fall below 0 degrees centigrade, or
exceed 40 degrees centigrade.
2.2.2 Room sizes
• The room has to be larger than 8.00 m³
• If the room size is 8-25m³, it needs ventilation which is at 12 m³/h of air change
rate.
• If the room size is over 25m³, it doesn’t need separate ventilation equipment.
• The minimum base surface area is 2.00 m²
- Min. height is 2.00 m
- Min. depth is 2.00 m
2.2.3 Ceiling, ground and wall requirements
•
• The total weight of the device that the ground could support is 96kg (3kWh
system). The proximity to the grid consumption meter shouldn’t be too far to
install to allow CT cable connection without extending the CT (10m).
•
2.2.4 Temperature and humidity
•
• Max. humidity is 95%.
2.2.5 Access rights
• Children must be accompanied with an adult if they are in the installation room.
• Children must not operate the storage system.
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2.2.6 Pollution grade
The surrounding environment of the energy storage system area is at pollution grade2.
occasionally, however, temporary conductivity can be expected where condensation is present.
2.2.7 Protection type
IP32
2.3) Safety Signs on the Device
Graph
Description
Danger of electric shock
Read the installation introduction and operation manual
Please do not discard
Ground connection
The sign of fever
2.4 Electrical Protection
An electrician must install the following safetyequipment:
•
guide).
Graph Description
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• There must be an RCD between the grid in house and the Mini ES.
• There must be an RCD on the emergency load distribution plate from the Mini
ES.
2.5 Basic Safety Information
This chapter contains the basic safety instructions. Failure to observe the safety instructions
in this manual may result in accidents which can lead to serious injury and/or death as well as
serious material/property damage.
2.5.1 Risk of fatal Injury
Risk of fatal injury due to lack of assistance
A second body can switch off the power supply and provide assistance in the event of an
accident.
- Only if a second person is present, could there be assistance in any case scenario
Risk of fatal injury due to disregarding safety Instructions
If the safety instructions and/or the sequence of Steps forinstallation are not followed, the
product may be damaged permanently and electrical accidents with serious personal injury may
occur.
- Consult the safety instructions.
- Note the sequence of steps for installation.
Risk of fatal injury due to residual voltage in inverter
The capacitors of the inverter built in to the Mini ES may still have residual voltage even after
the device has been switched off.
- Shut down all external and internal switches and ensure they will not be switched back on.
- After switching off the device, you must wait for 10 minutes at least before touching any
components.
Risk of fatal injury due to electric shock from battery
Batteries have a high short-circuit current.When they are handled incorrectly, it can cause an
electric shock and even lead to serious injury and/or death.
- While working, remove watches, rings and other metal objects.
- Use tools with insulated handles only.
- Do not place or store tools, (or other metal objects) on the batteries.
Risk of explosion due to the use of incorrect battery types
If the battery which is used in the device is not approved, it may cause explosion.
- Only use batteries that have been approved by the manufacturer.
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2.5.2 Risk of General Injury
Risk of injury due to lack of expertise
Installing and commissioning the storage system requires training, as well as established
expertise in electrical engineering.
- Only the authorised, trained electricians are to carry out the
installation, operation, or
maintenance of the Mini ES.
Risk of burns due to high temperature
The components temperature of the device may be up to 100 °C (212°F), which can cause
serious burns.
- After switching off the device, you must wait for 10 minutes before touching any
components.
- Do not touch hotcomponents.
Risk of injury due to heavy weight
The heavy weight of the components may cause injury during installation, disassembly and
transportation.
-Transport and mount the components with two people.
Risk of injury due to follow the correct sequence
materialdamage.
- Consult the order of events.
- Consult the safetyinstructions.
Risk of injury due to misinterpretation of the instructions
materialdamage.
- Consult the user manual.
- Consult the safetyinstructions.
Risk of injury due to sharpedges
The components may have sharp edges which can cause hand injuries if not handled carefully.
- Wear protective gloves.
- Mount the components with two people.
Risk of injury due to incorrect use of the batteries
Eye and skin injuries caused by opening or damaging the batteries.
- Never open or damage thebatteries.
- Do not short-circuit the batteries.
- Do not reverse the polarity of the batteries.
- Do not overcharge the batteries.
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2.5.3 Further Safety Information
• Don’t carry out electrical maintenance to the internal components of the
equipment. If necessary, please contact the distributor.
• Don’t climb on the equipment.
• Don’t block the vents of the device.
• Don’t put any objects inside the equipment.
• Don’t disturb any cables within the device.
• Don’t site the device near a heat source.
• Don’t use wet cloths or solvents to clean the device.
• Don’t site the device near other high frequency devices.
• Don’t touch the power supply with a wet hand or cloth.
• Don’t put the unit near a high frequency machine or wireless machine that
can send waves, (radio/tv).
• Don’t hit or drop the unit.
• Don’t connect a device that can’t work without external power supply to the
system.
• Don’t touch the power supply after the completion of an installation when
there has been a problem or the equipment has been damaged, because it
may cause electric shock.
• Don’t touch it when it thunders.
•
• When the device appears like it has broken, or it breaks, sounds/smells wrong,
please contact BYD.
• Please contact BYD if the device isn’t working properly.
• When installing make sure there’s enough space for maintenance and
inspection.
• If the system hasn’t been used for a long time, please contact BYD.
• If the device moves around, please contact BYD.
• Must be installed indoors.
•
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2.6 Safety in Transportation
Risk of injury due to heavy weight
The heavy weight of the components may cause injury during installation,
disassemblyandtransportation.
- 2 people should transport and mount the system.
Material damage due to condensation
If the device is moved from a cold environment to the installation location it
may cause condensation, which causes damage to the components.
- Transport the unit at T=0
°C to +50 °C (32-122
humidity of 95% (non-condensing).
- Before commissioning, the unit must be dry.
Material damage due to impact forces
When moving and setting down the device, electronic equipment can be damaged by the
forces of impact.
- Avoidany impact
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3. Technical Description
3.1 Scope of Supply
After unloading the storage system, please check if a component has been lost or
broken. In the event that it has, please contact the manufacturer. The delivered system
should include the following components:
Item Name Number Description
1 MINI ES 1
2Current Transformer 2 With 10m cable
3 User Manual 1
4 Installation Checklist 1
5 Written Warranty 1
6 Test Report 1
7 1
8 Maintenance card 1
3.2 Nameplate
There is a nameplate on the left side
shell of the ESS.
The nameplate contains important
parameter information about the ESS.
During the operation, transportation,
installation, maintenance and in any
case, the nameplate
should be well protected. Under any
circumstances you should not remove it.
Please see the image below showing
the nameplate:
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3.3 System Overview
BYD has gone through an extensive R&D process over a long period of time, to bring a highly
effective solution to the UK market. The solution contains LiFePO, PCS, and distributed BMS
System. It extrudes the advantage of intelligence and the integration of the overall technology
means that the user can detect the ESS by the APP (support IOS and Android). It is a credible,
safe and effective method for energy saving and for the environment.
The system is designed for electrical energy storage. It works with PV so that the redundant
energy from the PV can be effectively distributed in order to help you save energy.
-
The important load can’t overload the rated power, 2 KVA in the Mini ES otherwise the Mini
ES will lose the protection function and stop working.
- When the battery is empty, it will mean the important load will lose its power.
3.4 Overview of Functions
1. When it is a sunny day with abundant daylight, the energy from the PV could support the
emergency load and redundant energy could be charged to the Mini ES.
2. When there is no daylight and the battery is full of energy, the Mini ES will support the
emergency load.
3. When there is no daylight, the battery may not be able to support the load solely and so
the grid will work with the battery to support the load.
4. When there is no daylight and the battery is empty, the grid will support the family load.
When the Mini ES is on-grid, it can’t run continuously at full power – 3Kw. In order to keep the
service life of the batteries, it will decrease the power automatically dependant on the status
of the batteries (too high or too low). The system could support a property with daily circulated
charge and discharge.
If there is cloudy weather over a prolonged period of time and the Mini ES is on-grid, the PV
couldn’t support the energy to the product in order to ensure the machine could be kept on
standby, it would therefore get energy from the grid to charge the batteries, (which would take
about 0.3kWh-0.4kWh energy from the grid)
When the grid loses power suddenly, the Mini ES will support the important emergency load
automatically at 2KVA. This is an emergency function. When the load is over this power, the Mini
ES is self protected and the electricity supply will stop. The Mini ES is designed for smaller power
devices such as lights and computers.
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3.5 Product Introduction
3.5.1 Appearance
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3.6.2 Size Introduction
The Mini ES is 680mm in length, 257mm in width, 610mm in height and 96kg in weight.
3.5.3 Interface Introduction
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Item Name Description
1 DC+ For addition of 3kWh extension pack
2 DC- For addition of 3kWh extension pack
3 12V POWER RESERVED
4 RS485 RESERVED
5 CAN1-1 RESERVED
6 CAN1-2 RESERVED
7 LAN Ethernet cable interface
8 CT1-CT3 Current transformer interface
9 GRID Grid interface
10 LOAD Emergency Load interface
-11 PV INVERTER RESERVED
will not take responsibility for the Mini ES if other products have caused it to break.
3.6 Button Functions
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POWER: Power on/off button
LOCAL: Local control button
REMOTE: Remote control button
3.6.1 Power on function
• Press the “POWER” button for about 10 seconds until the “POWER” light is on. When
time. This is the normal process for powering up.
• When the “POWER” light is on you can you release the “POWER” button. The “POWER”
Again, this is normal during the powering up process. After this process the “POWER”
and “LOCAL” will stay alight and the powering up process is complete.
Risk of shock
The load distribution plate always has an electric current when the energy storage system is
working.
- Only after a professional engineer installs the Mini ES can the user start the Mini ES.
- Don’t operate the load distribution plate when the grid is off. Turn off the Mini ES and after
testing the load distribution plate to make sure it is neutral, you may operate.
3.6.2 Power off function
• Press the “POWER” button until the “POWER” light is off. When it is, you have turned the
system off successfully.
3.6.3 “Local” control function
• With the Mini ES you can use both the “LOCAL” and “REMOTE” button to set the “local
control” and the “remote control” mode respectively, (although the system defaults the
local control). The “REMOTE” button is designed for professional users.
• After the Mini ES is on, the system defaults local control and the “LOCAL” light keeps on.
If the customer wants to change the remote control mode to local control mode, press
the “LOCAL” button for about 5 seconds. When the “LOCAL” light turns on, it means the
Mini ES has changed to the local control mode successfully.
3.6.4 Maintenance charge function
• If the Mini ES is unused for a long period of time, the user will need to charge the
batteries to full, in order to ensure the service life of the batteries.
• Press the “REMOTE” and “LOCAL” button at the same time for about 5 seconds. Both
lights of “REMOTE”, “LOCAL” and “POWER” are on, the maintenance charge mode starts.
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• Only in local mode is the function valid.
• When it is in maintenance charge mode, the system will charge the batteries to full
capacity. After the Mini ES is powered off, take off the wiring between the Mini ES and
the grid.
• If the user wants to stop the function, press the “REMOTE” and “LOCAL” button for about
5 seconds and then the Mini ES will go back to the local mode.
-
- Only after installing will the system start working.
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