SunSynk LoadShedder SM2.5kWLS User manual

SM2.5kWLS
USER MANUAL
SA
Please retain for
future reference
1423
MOBILE
www.sunsynkmobile.com / [email protected]
www.loadshedder.co.za / [e-mail]

SM2.5kWLS - Loadshedder 22
Index
1. Safety 4
1.1. General Safety Information 4
1.2. Symbols in the Manual 4
1.3 Symbols in the Product 5
1.4. Safety Instructions 6
1.5. Disposal 6
2. Product Introduction 7
3. Box Contents 8
4. TechnicalSpecication 8
5. Installation 10
5.1. Selecting the Mounting Area 10
5.2. Mounting the Inverter 11
5.3. Turning on the Batteries 12
5.4. Flow Diagram 13
5.5. Connecting to the Mains / Grid 13
5.6. Wiring the PV Panels 13
5.7. CT Coil and Load Power Settings 14
5.8. Parallel Operation 16
5.9 External Battery and Parallel Connections 17
6. LCD Display Screen 19
7. Factory Settings 20

SM2.5kWLS - Loadshedder 23
8. Operation 21
8.1. System Flow 22
8.2. Switching On / Off 22
8.3. Home Screen 22
8.4. Home Settings 23
8.5. Basic Settings 23
8.6. Work Mode Settings 24
8.7. System Logger 25
8.8. Advance Settings 26
8.8.1. Grid Settings 27
8.8.2. Battery Settings 27
8.8.3. System Settings 28
8.8.4. Export Control 29
8.8.5. Charge From Main 29
8.8.6. Earth Neutral Bond 29
8.8.7. Night Power Saving 30
8.10. Settings Details 31
8.11. Fault Codes 34
9. Commissioning 36
9.1. Start Up / Shutdown Procedure 36
9.2. Information for Commissioning the Inverter 36
9.3. GFDI Fault 38
10. Maintenance 38
Appendix A 38

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1. SAFETY
This device should only be used in accordance with the instructions within this manual and in
compliance with local, regional and national laws and regulations. Only allow this device to be
installed, operated, maintained or repaired by other person(s) who have also read and understood
this manual. Ensure the manual is included with this device should it be passed to a third party.
DO NOT allow minors, untrained personnel, or person(s) suffering from a physical or mental
impairment that would affect their ability to follow this manual, install, maintain or repair
this device.
Any untrained personnel who might get near this device while it is in operation MUST be
informed that it is dangerous and instructed carefully on how to avoid injury.
1.1. General Safety Information
WARNING This symbol indicates information that if ignored, could result in personal
injury or even death due to incorrect handling.
CAUTION This symbol indicates information that if ignored, could result in personal
injury or physical damage due to incorrect handling.
PLEASE NOTE Indicates information that is considered important, but not hazard-related.
If this label is situated next to the positive and negative battery connections it
indicates that for paralleling, only Sunsynk batteries are recommended.
1.2. Symbols in the Manual

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1.3. Symbols in the Product
Caution, risk of electric shock.
Caution, risk of burn.
Be careful when touching the inverter! It is an electrical product with risk of electric shock and
heating.
Indicates that this product is recyclable.
Indicates that the device, accessories and packaging must not be disposed of as unsorted
municipal waste and must be collected separately at the end of the usage. Please follow Local
Ordinances or Regulations for disposal or contact an authorized manufacturer representative for
information concerning the decommissioning of equipment.
CE mark is attached to the solar inverter to verify that the unit follows the provisions of the Euro-
pean Low Voltage and EMC Directives.
Refer to the operating instructions.
The UKCA marking is used for products placed on the market in Great Britain (England, Scot-
land and Wales). The UKCA marking applies to most products for which the CE marking could
be used.
The batteries contained in this product have an explosive, self-reactive substance that may
explode when heated.
Keep the product out of reach of children!
Keep away from open ames and moisture, and store below 60 ºC (140 ºF).
Avoid unsuitable shoes for installing and operating the inverter.

SM2.5kWLS - Loadshedder 26
1.4. Safety Instructions
Be sure to read this manual thoroughly before installation.
Do not attempt to install the inverter by yourself. Installation work must be carried out in compliance
with national wiring standards and by suitably qualied personnel only.
Do not turn on the power until all installation work is complete.
Do not disassemble the inverter. If you need to repair or maintenance, contact a professional
service centre.
Always use an individual power supply line protected by a circuit breaker and operating on all wires with
a distance between contacts of at least 3mm for this unit.
The unit must be correctly grounded and the supply line must be equipped with a suitable breaker and
RCD to protect people.
Disconnect all wires before performing any maintenance or cleaning to reduce the risk of electric shock.
The unit is not explosion-proof, so it should not be installed in an explosive atmosphere.
Never touch electrical components immediately after the power supply has been turned off since the
system can still have residual energy, so electric shock may occur. Therefore, after turning off the power,
always wait 5 minutes before touching electrical components.
This unit contains no user-serviceable parts. Always consult an authorised contractor for repairs.
Ensure to follow the safety warnings listed below:
WARNING
HIGH LIFE RISK DUE TO FIRE OR ELECTROCUTION.
TheLoadshedder2canonlybeinstalledbyaqualiedlicensedelectrical
contractor. This is not a DIY product.
1.5. Disposal
DO NOT dispose of this product with domestic waste!
Electrical devices should be disposed of in accordance with regional directives on electronic and / or
electronic-waste disposal. In case of further questions, please consult your supplier. In some cases, the
supplier can take care of disposal.

SM2.5kWLS - Loadshedder 27
2. PRODUCT INTRODUCTION
The Loadshedder 2 is a highly efcient power management tool that allows the user to hit those ‘parity’ tar-
gets by managing power-ow from multiple sources such as solar, mains power (grid) and
generators, and then effectively storing and releasing power as and when utilities require.
INTERACTIVE
Easy and simple to understand LCD display.
Supporting Wi-Fi or GSM monitoring.
Built-in MPPT trackers.
Smart settable 3-stage MPPT charging for optimised battery performance.
COMPATIBLE
Compatible with main electrical grid voltages.
230V single-phase, pure sine wave inverter.
CONFIGURABLE
Fully programmable controller.
Programmable supply priority for battery or grid.
Programmable multiple operation modes: on-grid / off-grid & UPS.
Congurable battery charging - current / voltage based on the application.
SECURE
Overload / over-temperature / short-circuit protection.
Smart battery charger design for optimized battery protection.
Limiting function installed to prevent excess power overow to grid.
APPLICATIONS
Power shedding (home / ofce / factory).
UPS (Uninterrupted Power Supply).
Remote locations with solar.
Building sites.
Telecommunication.

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Pure sine wave inverter with a maximum input power of 3kW.
High nominal output power of 2.5 kW that can run several appliances.
With batteries, the power capacity is 2048Wh.
MPPT charge controller feature.
Bi-directional inverter that can rapidly charge its internal batteries in just one hour.
3. BOX CONTENTS
4. TECHNICAL SPECIFICATION
Loadshedder 2 (main unit) Wall mounting bracket
Screw pack Data logger (Sunsynk Wi-Fi)
CT Coil (2 pin AERO type female connector) 3m cable
1 x MC4 connectors 1x3 pin AC Load connector (female) and 1x3 pin AC
Grid connector (male)
This box contains:
MOBILE
Limiter/CT
Load
Grid MC4
Connectors
Wi-Fi Logger
Connections
Battery
Connections
Battery
Connections
Solar
Isolator
Battery
Isolator
Cooling
Vent Inverter
On/Off
Circuit
Breaker
CAN
ports for
paralleling
Battery
BMS
CAN

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Model Loadshedder 2
PV Input Data
Max. PV Power 3000W
Max. PV Input Voltage 500V
MPPT Voltage Range 120-450V
Start-up Voltage 150V
Max. PV Current 12A (total current of the one MC4 set)
AC Output / Input Data
Maximum Input Power 2500W
Nominal Input / Output Power 2500W
Max. Input / Output Apparent Power 2500VA
Nominal Voltage 230VAC
Max. Input / Output Current 11A
Max. Bypass Current 20A
Nominal Frequency 50Hz
Power Factor Range 0.8 Leading ~ 0.8 Lagging
Standalone Data
Nominal Output Power 2500W
Nominal Output AC Voltage 230VAC (Congurable)
Nominal Output AC Frequency 50Hz (Congurable)
Output THD (Resistor load) <3%
Battery Data
Battery Voltage Range 40V~58V
Max. Charging Current / Discharging Current 42A/56A
Battery Type LiFePO4
Power of the Battery 2048Wh
Number of Batteries 1 (Installed)
Ingress Protection IP20
Protective Class Class I
Efciency
Max. Efciency 97.6%
Max. Battery to Load Efciency 94.0%
Europe Efciency 97.0%
MPPT Efciency 99.9%
Operating Temperature Ranges
Inverter -25ºC ~ +60ºC
Battery Charging 0ºC ~ +45ºC
Battery Discharging -20ºC ~ +50ºC

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5. INSTALLATION
5.1. Selecting the Mounting Area
DO NOT install in the following areas:
Areas with high salt content, such as the marine environment. It will deteriorate the metal parts and
possibly lead to water / dampness penetrating the unit.
Areas lled with mineral oil or containing splashed oil or steam such as in kitchens. This will deteriorate
plastic parts of the unit, causing those parts to fail or allow water /damp to penetrate the unit.
Areas that generate substances that adversely affect the equipment, such as sulphuric gas, chlorine gas,
acid, or alkali. These can cause the copper pipes and brazed joints to corrode and fail to conduct
electricity reliably.
Areas that can cause combustible gas to leak, which contains suspended carbon-bre, ammable dust or
volatile inammability such as paint thinner or gasoline.
Areas where there may be gas leaks and where gas may settle around the unit, as this is a re risk.
Areas where animals may urinate on the unit or ammonia may be generated.
High altitude areas (over 4000 metres above sea level).
Environments where precipitation or humidity are above 95%.
Areas where the air circulation is too low.
MOBILE

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5.2. Mounting the Inverter
Select a location that provides adequate support for the weight of the inverter.
Install this inverter so that the LCD screen is eye-level for easy operation.
An appropriate ambient temperature lies between -20 ~ 60°C for optimal operation. Battery charging
temperature range lies between 0ºC ~ 45ºC.
Ensure other objects and surfaces are outside of the recommended spaces (500mm each side / above and
below / front) to guarantee heat dissipation and easy access to the wiring / cabling.
ALSO CONSIDER:
Installing the indoor unit, outdoor unit, power supply cable, transmission cable and remote control cable
at least 1 metre away from any television or radio receiver. This will prevent TV reception interference or
radio noise. This will also prevent radio signal interference from external units that might interfere with the
Wi-Fi or GSM monitoring.
If children may approach the unit, take preventive measures so that they cannot reach and touch the unit.
Install the indoor unit on the wall where the height from the oor is higher than 1600mm.
For proper heat dissipation, allow a clearance of approximately 500mm to the side, 500mm above and
below the unit and 1000mm to the front of the unit.

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CAUTION
Risk of Injury (Heavy Object)
Remember that this inverter is heavy, so users must be careful in handling the unit during
installation especially when mounting or removing from a wall.
5.3. Turning on the Batteries
CAUTION
Setting a power limit higher than maximum will damage the battery fuse.
Turn the battery isolation switch
to turn on the batteries.
MOBILE

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1. Connect the Loadshedder 2 Hybrid Inverter to the electrical grid via the grid ports, using a suitable RCD
and a 20A fuse on the consumer board.
2. Now, using a 3mm cable, connect only the essential loads to the load ports (output) to a secondary
consumer board, considering the maximum limit of 2.5 kW.
3. Ensure the main consumer unit and the secondary consumer unit are correctly grounded to the Load-
shedder 2.
The Loadshedder 2 Hybrid Inverter has an MPPT controller with a maximum input current of 12A.
Please do not connect two PV sets with different voltages to the MC4 connectors. This can damage the
PV set, causing the system to malfunction.
Before connecting to PV modules, install a separate DC circuit breaker between the inverter and PV array.
To avoid any malfunction, DO NOT connect any PV modules with possible current leakage to the inverter.
For example, grounded PV modules will cause current leakage to the inverter.
Also, the open-circuit voltage (Voc) of the PV modules does not exceed the maximum input voltage of the
inverter. Also, the Voc of the PV array should be higher than the minimum starting voltage of the inverter.
Connect the PV panels into the MC4 connectors.
Essential Loads
Non-Essential Loads
5.4. Flow Diagram
5.5. Connecting to the Mains / Grid
5.6. Wiring the PV Panels

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The CT coil is one of the most important parts of the Loadshedder 2. This device reduces the power of the
inverter to prevent feeding power to the grid. This is also known as zero export.
Fit the coil (sensor) around the live cable on the main fuse feeding the building and run the cable back to
the inverter. This cable can be extended up to an extra 10m using a similar cable.
Connect the other end of the CT coil into the inverter terminals marked as CT coil.
5.7. CT Coil and Load Power Settings
Feed cable back
to Loadshedder 2
Connect into CT/
Limiter Port
Loadshedder 2
Main Fuse
Fit around positive cable feeding the building BETWEEN the meter and main fuse.
Electricity Meter
CT arrow pointing in
the direction of the
Loadshedder 2

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You can access the CT Coil Screen directly from the Home Screen by pressing the Home/Back button:
CT Power Load Power
Work Mode: Standalone
Input Trickle Feed: 30W
Export Control: Zero Export
Earth Neutral Bond: Enable
Night Power Saving: Enable
0W 0W
You can access the Internal Battery Pack page by pressing the Home/Back button again:
You can access the External Battery Pack page by pressing the Home/Back button again:
Internal Battery Pack
Capacity: 40Ah SOC: 64%
Voltage: 53.2V Current: 18A
Charge Voltage Limit: 57.6V
Discharge Voltage Limit: 45.0V
Charge Current Limit: 20A
Discharge Current Limit: 40A
Temp: 34.8ºC Alarm: 0x0000
External Battery Pack
Capacity: 40Ah SOC: 65%
Voltage: 53.4V Current: 17A
Charge Voltage Limit: 57.6V
Discharge Voltage Limit: 45.0V
Charge Current Limit: 20A
Discharge Current Limit: 40A
Temp: 31.2ºC Alarm: 0x0000
SN: XXXXXXXXXX

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5.8. Parallel Operation
In order to connect Lifelynk inverters to operate in parallel, you need to set up the work mode conguration
for each the inverter. Basically, you have to set which inverter will be the master and which will be the slaves,
and then make the connections described in section 5.9 (External Battery and Parallel Connections).
Basic Settings
Set Time
Set Date
15:16
Backlight
Work Mode
Factory Reset
SOC/Voltage
19-05-2023
On
Slave 02
Voltage
No
WARNING
Toensuretheproperfunctioningoftheparalleloperation,itisimportantrsttoestablish
the work mode for both the Master and Slave inverters and then make the necessary wir-
ing connections.
If you make the connection prior to changing the work mode, an F15 error will be dis-
played on the Fault Codes page. In the event of this error, please maintain the connection
and proceed to the settings to modify the work mode as presented above, and wait ap-
proximately 3-4 minutes. After that, the device should return to its normal working condi-
tion, with the error cleared.
Basic Settings
Set Time
Set Date
15:16
Backlight
Work Mode
Factory Reset
SOC/Voltage
19-05-2023
On
Master
Voltage
No

SM2.5kWLS - Loadshedder 217
5.9. External Battery and Parallel Connections
Inverter Unit: 1 External Battery Number: 1 Inverter Unit: 1 External Battery Number: 2
Inverter Unit: 2 External Battery Number: 1
Inverter Unit: 2 External Battery Number: 2
Inverter Unit: 3 External Battery Number: 1

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Inverter Unit: 3 External Battery Number: 2
Inverter Unit: 2 External Battery Number: 2
(Shows Batteries connected in parallel)
Inverter Unit: 3 External Battery Number: 6
(Show External Batteries can be installed into each inverter)
Inverter Unit: 2 External Battery Number: 1
(Shows CT Coil Connection + Master&Slave)

SM2.5kWLS - Loadshedder 219
6. LCD DISPLAY SCREEN
1. Power - to turn the system on / off.
2. Settings / Select - to operate the settings
menu & to select.
3. Up - to navigate up.
4. Down - to navigate down.
5. Home / Back - to go back to the home menu
& to navigate backwards.
The LCD display screen is situated on the front of the Loadshedder 2, this is where you can control and
operate the system.
TYPE INDICATION DESCRIPTION
BATTERY
GREEN CHARGING
BLUE DISCHARGING
AC
GREEN AC CONNECTED
OFF AC OFF
SOLAR
GREEN SOLAR ON
OFF SOLAR OFF
NORMAL
GREEN INVERTER RUNNING
RED SYSTEM FAULT
OFF INVERTER NOT RUNNING
Solar Power/Voltage
Battery Voltage/Soc
System Mode / Current
Inverter Power/Voltage
Grid Voltage/Frequency
0W/0V
52.2V/54%
DisC/41.9A
2090W/231V
238V/52.0Hz
DATE: 22-03-2023
TIME: 10:06:02
Temp 45.3ºC

SM2.5kWLS - Loadshedder 220
Battery Settings Default Setting
Low Battery Cut Off 45.0V
Reboot Voltage 50.0V
Maximum Charge 20A
Charge from MAIN YES
Float Charge Voltage 56.0V
Active ON
SystemConguration Default Setting
Maximum Discharge Current 50A
Maximum Battery Voltage 56.0V
Import Trickle Feed 30W
Export Control Zero Export
Earth Neutral Bond Enable
Night Power Saving Enable
Grid Settings Default Setting
Maximum Grid Voltage 251V
Minimum Grid Voltage 197V
Maximum Grid Frequency 52.0HZ
Minimum Grid Frequency 47.0HZ
System Controller Default Setting
00:00 6:00 1500W 52.0V Y
6:00 12:00 1500W 52.0V Y
12:00 18:00 1500W 52.0V Y
18:00 23:59 1500W 52.0V Y
7. FACTORY SETTINGS