SunSynk ECCO SUN-3.6K-SG05LP1-EU User manual

ECCO
HYBRID INVERTER
Global Tech China Ltd, 3 Floor, Wai Yip Industrial Building.
171 Wai Yip Street, Kwun Tong, Kowloon, Hong Kong.
Tel: [phone] Fax: [phone]
www.sunsynk.com / [email protected]
USER MANUAL
v.5 (12/09/22)
SUN-3.6/5/6/7.6/8K-SG05LP1-EU

ECCO SG04LP1 | User Manual2
Table of Contents
1. SAFETY 5
1.1. General Safety 5
1.2. Symbols 5
1.3. Safety Instructions 6
1.4. Disposal Remarks 6
2. PRODUCT INTRODUCTION 7
2.1. Product Size 9
2.2. Basic System Architecture 10
3. TECHNICAL SPECIFICATIONS 11
4. INSTALLATION 13
4.1. Parts List 13
4.2. Selecting the Mounting Area 14
4.3. System Diagram 15
4.4. Mounting the Inverter 15
4.5. Function Port Denition 17
4.6. Battery Connection 18
4.6.1. Recommended DC Battery Protection 19
4.7. Connecting a Lithium Battery 20
4.8. Battery Temperature Sensor Connection 20
4.9. Connecting the AC 22
4.9.1. Recommended AC Surge Protector 23
4.10. Installing the CT Coil 24
4.11. Earth Connection (MANDATORY) 25
4.12. Meter Connection 26
4.12.1. System Connection for the CHNT Meter 26
4.13. Wiring System for Inverter 27
4.14. PV Connection 28
4.14.1. PV Module Selection 28
4.14.2. PV Module Wiring 28
4.15. PV Protection 29
4.16. Single-Phase Parallel Connection Diagram 30
4.17. Three-Phase Parallel Inverter 31
4.18. Typical Application Diagram of Diesel Generator 32

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5. OPERATION 33
5.1. Display 33
5.2. Switching ON/OFF 33
5.3. Home Page 34
5.4. Status Page 34
5.5. System Flow Page 35
5.6. Setup Page 36
5.7. Set Time (Clock) 37
5.8. Set Company Name / Beeper / Auto dim 37
5.9. Factory Reset and Lock Code 38
5.10. Battery Setup Page 39
5.11. Generator & Battery Page 40
5.12. Battery Discharge Page 42
5.13. Setting Up a Lithium Battery 44
5.14. Program Charge & Discharge Times 49
5.15. Grid Supply Page 51
5.16. Connecting the DRM’s 52
5.17. Advanced Settings for Paralleling Inverters 53
5.18. Solar Power Generated 56
5.19. Grid Power 56
5.20. Advanced Settings for Wind Turbines 57
5.21. Advanced Settings for Auxiliary Load 58
5.22. Advanced Settings for Peak Shaving 59
5.23. Fault Codes 60
6. OPERATING MODES 63
6.1. Mode I: Basic 63
6.2. Mode II: With Generator 63
6.3. Mode III: With Smart Load 64
6.4. Mode IV: AC Couple 64
7. COMMISSIONING 66
7.1. Start-Up / Shutdown Procedure 66
7.2. Information for Commissioning the Inverter 67
7.3. GDFI Fault 68
8. MAINTENANCE 68

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APPENDIX A 68
APPENDIX B 69
APPENDIX C 69
APPENDIX D 69
APPENDIX E 70

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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, and repaired by other person(s) who have 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) suering from a physical or mental impairment
that would aect 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
1.2. Symbols
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.

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1.3. 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 repair or maintenance, contact a professional service cen-
tre.
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/cables before performing any maintenance or cleaning to reduce the risk of electri-
cal 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 o since the
system can still have residual energy, so an electric shock may occur. Therefore, after turning o the
power, always wait 5 minutes before touching electrical components.
This unit contains no user-serviceable parts. Always consult an authorised contractor for repairs.
1.4. Disposal Remarks
DO NOT dispose this product with domestic waste!
Electrical devices should be disposed of in accordance with regional directives on electronic and/ or elec-
tronic-waste disposal. In case of further questions, please consult your supplier. In some cases, the supplier
can take care of proper disposal.
WARNING
HIGH LIFE RISK DUE TO FIRE OR ELECTROCUTION.
The Sunsynk Ecco Hybrid Inverter can only be installed by a qualied licensed electrical contractor.
This is not a DIY product.

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2. PRODUCT INTRODUCTION
The Sunsynk Ecco Hybrid Inverter is a highly ecient power management tool that allows the user to hit
those ‘parity’ targets by managing power-ow from multiple sources such as solar, mains power (grid) and
generators, and then eectively storing and releasing power as and when utilities require.
INTERACTIVE
Easy and simple to understand display
Supporting Wi-Fi or GSM monitoring
Visual power ow screen
Parallel / multi invert function grid-tied and o-grid
COMPATIBLE
Compatible with main electrical grid voltages or power generators
Compatible with wind turbines
Self-consumption and feed-in to the grid
Auto restart while AC is recovering
Auto earth bond feature (Via a relay)
CONFIGURABLE
Fully programmable controller
Programmable supply priority for battery or grid
Programmable multiple operation modes: on-grid/o-grid & UPS
Congurable battery charging - current/voltage based on applications by LCD setting
Congurable AC / solar / generator charger priority by LCD setting
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
Marine (vessel power management)
Power shedding (home/oce/factory)
UPS (fuel-saving systems)
Remote locations with solar and wind generators
Building sites
Military locations
Telecommunication

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1. Inverter Indicators 7. DRMs Port 13. Grid
2. LCD Display 8. Parallel port 14. PV input with two MPPT
3. Function Buttons 9. Function Port 15. Battery
4. Battery Input Connectors 10. RS 485 Port 16. Temperature sensor
5. BMS 485 Port 11. Generator input 17. WiFi Interface
6. BMS CAN Port 12. Load 18. Fan*
*Note: For some hardware versions, it doesn't have this fan.

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2.1. Product Size

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2.2. Basic System Architecture
The following illustration shows the basic application of this inverter.
It also includes following devices to have a Complete running system.
Generator or Utility
PV modules
Consult with your system integrator for other possible system architectures depending on your require-
ments.
This inverter can power all kinds of appliances in home or once environment, including motor type applianc-
es such as refrigerator and air conditioner.

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3. TECHNICAL SPECIFICATIONS
Model SUN-3.6K-
SG05LP1-EU
SUN-5K-
SG05LP1-EU
SUN-6K-
SG05LP1-EU
SUN-7.6K-
SG05LP1-EU
SUN-8K-
SG05LP1-EU
Battery Input Data
Battery Type Lead-acid or Lithium-ion
Battery Voltage Range 40~60V
Max. Charging Current 90A 120A 135A 190A 190A
Max. Discharging Current 90A 120A 135A 190A 190A
Charging Curve 3 Stages/Equalisation
External Temperature
Sensor Yes
Charging Strategy for Li-Ion
Battery Self-Adaptation to BMS
PV String Input Data
Max. DC Input Power 4680W 6500W 7800W 9880W 10400W
PV Input Voltage 370V (125V~500V)
MPPT Range 150~425V
Start-up Voltage 125V
Full Load DC Voltage Range 300~425V 200~425V
PV Input Current 13A+13A 26A+26A
Max. PV Isc 17A+17A 34A+34A
No. of MPPT / Strings Per
MPPT 2/1+1
AC Output Data
Rated AC Output and UPS
Power 3600W 5000W 6000W 7600W 8000W
Max. AC Power 3690W 5500W 6600W 8360W 8800W
Peak Power (o-grid) 2 times of rated power, 10 S
AC Output Rated Current 16.4A 22.7A 27.3A 34.5A 36.4A
Max AC Current 18A 25A 30A 38A 40A
Max Continuous AC
Passthrough 35A 30A 50A
Output Frequency and
Voltage 50/60Hz; L/N/PE 220/230Vac (single phase)
Grid Type Single-Phase
Current Harmonic Distor-
tion THD<3%(Linear load<1.5%)
Eciency
Max. Eciency 97.60%
MPPT Eciency 97.00%
Euro Eciency 99.90%
Protection
Integrated
PV Input Lightning Protection, Anti-islanding Protection, PV String Input
Reverse Polarity Protection,Insulation Resistor Detection, Residual Current
Monitoring Unit, Output Over Current Protection,Surge protection

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Certications and Standards
Grid Regulation CEI 0-21, VDE-AR-N 4105, NRS 097, IEC 62116, IEC 61727, G99, G98, VDE
0126-1-1, RD 1699, C10-11
Safety EMC / Standard IEC/EN 61000-6-1/2/3/4, IEC/EN 62109-1, IEC/EN 62109-2
General Data
Operating Temperature
Range -45~60°C, >45°C Derating
Cooling Natural Cooling
Noise <30dB
Communication with BMS RS485; CAN
Weight 20.5kg
Size 330W x 580H x232D mm
Protection Degree IP65
Installation Style Wall-mounted
Warranty 5 years

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4. INSTALLATION
4.1. Parts List
Check the equipment before installation. Please make sure nothing is damaged in the package. You should
have received the items in the following package:

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4.2. Selecting the Mounting Area
This Sunsynk Ecco Hybrid Inverter is designed for outdoor use (IP65).
DO NOT install the inverter in the following areas:
Areas with high salt content, such as the marine environment. It will deteriorate the metal parts and pos-
sibly lead to water/dampness penetrating the unit.
Areas lled with mineral oil or containing splashed oil or steam such as found in kitchens. It will deterio-
rate plastic parts of the unit, causing those parts to fail or allow water/damp to penetrate the unit.
Areas that generate substances that adversely aect 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 elec-
tricity reliably.
Areas that can cause combustible gas to leak, which contains suspended carbon-bre or ammable
dust, or volatile inammable 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 2000 metres above sea level).
Environments where precipitation or humidity are above 95%.
Areas where the air circulation is too low.
Areas exposed to direct sunlight.
Before connecting all wires, please take o the metal cover by removing screws as shown below:

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4.4. Mounting the Inverter
Select installation locations that are adequate to support the weight of the converter.
Install this inverter at eye-level to allow the LCD to be read anytime.
An appropriate ambient temperature is between -25 ~ 60°C to ensure optimal operation.
Be sure to keep other objects and surfaces as shown in the gure to guarantee sucient heat dissipa-
tion and have enough space to remove wires.
For proper air circulation to dissipate heat, allow a clearance of approximately 50cm to the side and
100cm to the front.
4.3. System Diagram
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 prevent radio signal interference from external units that might interfere with the
Wi-Fi or GSM monitoring.
If children under 10 years old 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 oors 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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WARNING
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 it from a wall.

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4.5. Function Port Denition

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4.6. Battery Connection
For safe operation and compliance, a separate DC over-current protector or disconnect device is required
between the battery and the inverter. In some applications, switching devices may not be required but
over-current protectors are still required. Refer to the typical amperage in the table below for the required
fuse or circuit breaker size.
Model Wire Size Cable(mm2) Torque value (max.)
3.6/5/6Kw 3AWG 25 5.2N.m
7/8kW 2AWG 35 24.5N.m
Please follow below steps to implement battery connection:
1. Please choose a suitable battery cable with correct connector which can well t into the battery termi-
nals.
2. Use a suitable screwdriver to unscrew the bolts and t the battery connectors in, then fasten the bolt by
the screwdriver, make sure the bolts are lightened with torque of 5.2 N.M in clockwise direction.
3. Make sure polarity at both the battery and inverter is correctly connected.
4. In case of children touch or insects go into the inverter, please make sure the inverter connector is fas-
ten to waterproof position by twist it clockwise.
CAUTION
Reverse Polarity.
Before making the nal DC connection or closing DC breaker/disconnect, be sure positive(+) must be
connect to positive(+) and negative(-) must be connected to negative(-). Reverse polarity connection
on battery will damage the inverter.

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4.6.1. Recommended DC Battery Protection
CAUTION
All wiring/connecting must be performed by qualied personnel. Before making the nal DC con-
nection or closing the DC Breaker/disconnection device, ensure the inverter unit is wired correctly. A
reverse-polarity connection on the battery will damage the inverter.

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4.7. Connecting a Lithium Battery
When connecting a Lithium battery, follow the connection steps below and check ‘Setting up a Lithium Bat-
tery’ to connect with an inverter.
1. Connect the correct diameter of cable in accordance with the battery manufacture specications along
with recommended safety devices.
2. Connect a communication cable from the batteries to the inverter in compliance with the battery manu-
facturer guidelines. The cables have two ends, one to be specically connected to the BMS and another
to be connected to the inverter, do not connect them incorrectly.
3. Connect the power and communication cables to the inverter correctly.
PLEASE NOTE
When connecting more than one battery, ensure they are set in the conguration of ‘master and
slave’.
PLEASE NOTE
Depending on the battery type, the inverter should be capable of controlling the batteries BMS. There-
fore, you need to set the protocol of the BMS on both the battery and the inverter.
When using more than one battery, the rst battery will be the master, and the other batteries will be
the slaves. Please, check the battery manufacturer's specications for proper operation.
To verify if the battery is communicating, access the Li BMS menu as detailed in the section ‘Setting
Up a Lithium Battery’ and check whether the values are realistic. It is important that the charge and
discharge limits in that page match the numbers expected for the number of batteries physically con-
nected.
4.8. Battery Temperature Sensor Connection
Without a remote temperature sensor, lead-acid batteries may undercharge or overcharge depending on
the ambient temperature of the installation environment. This may result in a re hazard.