SunSynk SUN-8K-SG04LP3 User guide

v.21 (12/09/22)
INSTALLER MANUAL
SUN-8K-SG04LP3 / SUN-10K-SG04LP3 /
SUN-12K-SG04LP3
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]
THREE-PHASE
HYBRID INVERTER

HYBRID INVERTER | Installer Manual2
PREFACE
This Installer Manual contains information for proper installation, operation, maintenance, and care of the
Sunsynk Three-Phase Hybrid Inverter. A deep understanding of the instructions described in this document
will help you get the most out of your new inverter.
This document should be read thoroughly, and all the procedures described in this manual should be
followed carefully. If you have questions or concerns about this product's operation and maintenance,
please get in touch with our customer support.
All personnel involved in this machine's installation, setup, operation, maintenance, and repair should read
and understand this manual, mainly its safety instructions. Substandard performance and longevity, property
damage, and personal injury may result from not knowing and following these instructions.
In order to ensure long product life, Sunsynk recommends that you utilize the product and perform
maintenance by correctly following the instructions described in this guide. The manufacturer's warranty
does not cover any damage resulting from the neglect of these instructions.
Sunsynk assumes no liability for damage caused by the operation contrary to what is specied in this
operating manual.
All information in this User Guide is based on the latest product information available at the time of printing
approval. Sunsynk reserves the right to make changes at any time without notice and without incurring any
obligation.
Please always keep this manual with the inverter as a reference for everyone using this product.

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Table of Contents
1. SAFETY 6
1.1. General Safety 6
1.2. Symbols 6
1.3. Safety Instructions 7
1.4. Disposal Remarks 7
2. PRODUCT INTRODUCTION 8
2.1. System Overview 8
2.2. Product Size 9
2.3. Features 10
2.4. Basic System Architecture 11
3. TECHNICAL SPECIFICATIONS 12
4. INSTALLATION 15
4.1. Parts List 15
4.2. Selecting the Mounting Area 16
4.3. Mounting the Inverter 17
4.4. Function Port Denition 19
4.5. Battery Connection 20
4.5.1. Temperature Sensor Connection for Lead-Acid Battery 21
4.5.2. Connecting the AC and Backup Load Connection 22
4.6. Connecting the CT Coil 24
4.8. Meter Connection 25
4.8.1. System Connection for the CHNT Meter 25
4.7. Earth Connection (MANDATORY) 25
4.9. PV Connection 27
4.9.1. PV Module Selection 27
4.9.2. PV Module Wiring 27
4.10. Wiring System for the Inverter 29
4.11. Wiring Diagram 32
4.12. Typical Application Diagram of Diesel Generator 33
4.13. Three Phase Parallel Connection Diagram 34

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5. OPERATION 35
5.1. Display 35
5.2. Switching ON/OFF 35
5.3. Home Page 36
5.4. Status Page 36
5.5. System Flow Page 37
5.6. Setup Page 38
5.7. Set Time (Clock) 39
5.8. Set Company Name / Beeper / Auto dim 39
5.9. Factory Reset and Lock Code 40
5.10. Battery Setup Page 41
5.11. Generator & Battery Page 42
5.12. Battery Discharge Page 44
5.13. Setting Up a Lithium Battery 46
5.14. Program Charge & Discharge Times 51
5.15. Grid Supply Page 53
5.16. Advanced Settings for Paralleling Inverters 54
5.17. Solar Power Generated 57
5.18. Grid Power 57
5.19. Advanced Settings for Wind Turbines 58
5.20. Advanced Settings for Auxiliary Load 59
5.21. Advanced Settings for Peak Shaving 60
5.22. Fault Codes 61
5.23. Operation Modes 64
5.23.1. MODE I: Basic 64
5.23.2. MODE II: With Generator 64
5.23.3. MODE III: With Smart-Load 65
5.23.4. MODE IV: AC Couple 65
6. COMMISSIONING 66
6.1. Start-Up / Shutdown Procedure 66
6.2. Information for Commissioning the Inverter 66
6.3. GDFI Fault 67
7. MAINTENANCE 67
APPENDIX A 68

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APPENDIX B 68
APPENDIX C 68
APPENDIX D 68
APPENDIX E 69

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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.
Sunsynk Three-Phase 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 Three-Phase 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.
2.1. System Overview
1. Inverter Indicators 7. Meter-485 port 13. Grid
2. LCD Display 8. Battery input connectors 14. Load
3. Function Buttons 9. Function Port 15. Generator input
4. Power on/o button 10. Modbus Port 16. Wi-Fi Interface
5. DC switch 11. BMS Port
6. Parallel port 12. PV input with two MPPT

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2.2. Product Size
Inverter Size
Mounting Bracket

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2.3. Features
INTERACTIVE
Easy and straightforward to understand LCD display;
Supporting Wi-Fi or GSM monitoring;
Visual power ow screen;
Built-in 2 strings for 1 MPP tracker and 1 string for 1 MPP tracker;
Smart settable 3-stage MPPT charging for optimised battery performance;
Auxiliary load function;
Multi-inverter function: grid-tied and o-grid;
COMPATIBLE
Compatible with mains electrical grid voltages or power generators;
Compatible with wind turbines;
230V/400V Three-phase Pure Sine-wave Inverter;
It can power up both single-phase and 3-phase loads;
Self-consumption and feed-in to the grid;
Auto restart while AC is recovering;
Maximum charging/discharging current of 190A (8kW), 210A (10kW), and 240A (12kW);
DC and AC coupled to retrot existing solar system;
Compatible with a 48V low-voltage battery;
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;
6 time periods for battery charging/discharging;
SECURE
Overload/over-temperature/short-circuit protection;
Smart battery charger design for optimised battery protection;
Limiting function installed to prevent excess power overow to the grid;
Isolation transformer design;
APPLICATIONS
Marine (vessel power management);
Power shedding (home/oce/factory);
UPS (fuel-saving systems);
Remote locations with solar and wind generators;
Building sites;
Telecommunication;

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2.4. Basic System Architecture
The following diagram explains the basic application and architecture of this 3-Phase Inverter.
It also includes the following devices to have a Complete running system.
Generator or Utility
PV modules
Batteries
Normal and smart loads
Monitoring system
Consult with your system integrator for other possible system architectures depending on your require-
ments.
This inverter can power all kinds of appliances in the home or one environment, including motor-type appli-
ances such as refrigerators and air conditioners.

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3. TECHNICAL SPECIFICATIONS
Model SUNSYNK-8K-SG04LP3
Product Type Hybrid Inverter
Enclosure IP65
Ambient Temperature -45ºC ~ 60ºC (>45ºC derating)
Protection Level Class I
Charge Mode
Battery Voltage 48Vd.c (40Vd.c ~ 60Vd.c)
Battery Current 190Ad.c (max.)
AC Input Voltage 3L/N/PE 220/380Va.c, 230/400Va.c
AC Input Frequency 50/60Hz
AC Input Rated Current 12.1Aa.c
Max. AC Input Current 18.2a.c (max.)
Max. AC Input Power 8800W
Max. Apparent Output Power 8800VA
PV Input Voltage 550Vd.c (160Vd.c ~ 800Vd.c)
MPPT Input Voltage 200Vd.c ~ 650Vd.c
PV Input Current 13Ad.c + 13Ad.c
Max. PV Input Power 10400W
Max. PV Isc 17Ad.c + 17Ad.c
Utility-Interactive
AC Output Voltage 3L/N/PE 220/380Va.c, 400Va.c
AC Output Frequency 50/60Hz
AC Output Rated Current 12.1Aa.c
Max. AC Output Current 18.2a.c (max.)
Max. AC Output Power 8800W
AC Output Rated Power 8800W
AC Output Power Factor 0.95 leading to 0.95 lagging
Max. AC Isc 75Aa.c
Battery Discharge Voltage 40Vd.c ~ 60Vd.c
Battery Discharge Current 190Ad.c (max.)
Battery Discharge Power 8000W
Stand Alone
AC Output Voltage 3L/N/PE 220/380Va.c, 230/400Va.c
AC Output Frequency 50/60Hz
AC Output Rated Current 12.1Aa.c
AC Output Rated Power 8000W
Max. Continuous AC Pass-through
Current 45Aa.c
Battery Discharge Voltage 40Vd.c ~ 60Vd.c
Max. Discharge Current 190A (max.)
Compliance VDE-AR-N 4105:1028-11; DINVDE V 0124-100:2020-06; IEC/
EN62109-1/2:2010; IEC/EN62109-1/2:2011

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Model SUNSYNK-10K-SG04LP3
Product Type Hybrid Inverter
Enclosure IP65
Ambient Temperature -45ºC ~ 60ºC (>45ºC derating)
Protection Level Class I
Charge Mode
Battery Voltage 48Vd.c (40Vd.c ~ 60Vd.c)
Battery Current 210Ad.c (max.)
AC Input Voltage 3L/N/PE 220/380Va.c, 400Va.c
AC Input Frequency 50/60Hz
AC Input Rated Current 15.2Aa.c
Max. AC Input Current 22.7Aa.c (max.)
Max. AC Input Power 11000W
Max. Apparent Output Power 11000VA
PV Input Voltage 550Vd.c (160Vd.c ~ 800Vd.c)
MPPT Input Voltage 200Vd.c ~ 650Vd.c
PV Input Current 26Ad.c + 13Ad.c
Max. PV Input Power 13000W
Max. PV Isc 34Ad.c + 17Ad.c
Utility-Interactive
AC Output Voltage 3L/N/PE 220/380Va.c, 400Va.c
AC Output Frequency 50/60Hz
AC Output Rated Current 15.2Aa.c
Max. AC Output Current 22.7Aa.c (max.)
Max. AC Output Power 11000W
AC Output Rated Power 11000W
AC Output Power Factor 0.95 leading to 0.95 lagging
Max. AC Isc 75Aa.c
Battery Discharge Voltage 40Vd.c ~ 60Vd.c
Battery Discharge Current 210Ad.c (max.)
Battery Discharge Power 10000W
Stand Alone
AC Output Voltage 3L/N/PE 220/380Va.c, 400Va.c
AC Output Frequency 50/60Hz
AC Output Rated Current 15.2Aa.c
AC Output Rated Power 10000W
Max. Continuous AC Pass-through
Current 45Aa.c
Peak Output Power 20000W (10 seconds)
Battery Discharge Voltage 40Vd.c ~ 60Vd.c
Max. Discharge Current 210A (max.)
Compliance VDE-AR-N 4105:1028-11; DINVDE V 0124-100:2020-06; IEC/
EN62109-1/2:2010; IEC/EN62109-1/2:2011

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Model SUNSYNK-12K-SG04LP3
Product Type Hybrid Inverter
Enclosure IP65
Ambient Temperature -45ºC ~ 60ºC (>45ºC derating)
Protection Level Class I
Charge Mode
Battery Voltage 48Vd.c (40Vd.c ~ 60Vd.c)
Battery Current 240Ad.c (max.)
AC Input Voltage 3L/N/PE 220/380Va.c, 400Va.c
AC Input Frequency 50/60Hz
AC Input Rated Current 18.2Aa.c
Max. AC Input Current 27.3Aa.c (max.)
Max. AC Input Power 13200W
Max. Apparent Output Power 13200VA
PV Input Voltage 550Vd.c (160Vd.c ~ 800Vd.c)
MPPT Input Voltage 200Vd.c ~ 650Vd.c
PV Input Current 26Ad.c + 13Ad.c
Max. PV Input Power 15600W
Max. PV Isc 34Ad.c + 17Ad.c
Utility-Interactive
AC Output Voltage 3L/N/PE 220/380Va.c, 400Va.c
AC Output Frequency 50/60Hz
AC Output Rated Current 18.2Aa.c
Max. AC Output Current 27.3Aa.c (max.)
Max. AC Output Power 13200W
AC Output Rated Power 12000W
AC Output Power Factor 0.95 leading to 0.95 lagging
Max. AC Isc 75Aa.c
Battery Discharge Voltage 40Vd.c ~ 60Vd.c
Battery Discharge Current 240Ad.c (max.)
Battery Discharge Power 12000W
Stand Alone
AC Output Voltage 3L/N/PE 220/380Va.c, 400Va.c
AC Output Frequency 50/60Hz
AC Output Rated Current 18.2Aa.c
AC Output Rated Power 12000W
Max. Continuous AC Pass-through
Current 45Aa.c
Peak Output Power 24000W (10 seconds)
Battery Discharge Voltage 40Vd.c ~ 60Vd.c
Max. Discharge Current 240A (max.)
Compliance VDE-AR-N 4105:1028-11; DINVDE V 0124-100:2020-06; IEC/
EN62109-1/2:2010; IEC/EN62109-1/2:2011

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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:
Hybrid Inverter
x1
Stainless steel anti-collision
bolt M8x80
x4
Parallel communication
cable x1
Sensor Clamp
x3
L-type Hexagon wrench
x1
User manual x1 Wi-Fi-Plug x1 (Optional)
Battery Temperature Sensor
x1
Meter x1 (Optional)
Wall Mounting Bracket
x1

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4.2. Selecting the Mounting Area
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.
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
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
possibly lead to water/dampness penetrating the unit.
Areas lled with mineral oil or containing splashed oil or steam, such as those found in kitchens. It will
deteriorate plastic parts of the unit, causing those parts to fail or allowing 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 4000 metres above sea level).
Environments where precipitation or humidity is above 95%
Areas where the air circulation is too low.

HYBRID INVERTER | Installer Manual17
Wi-Fi or GSM monitoring.
If children under 10 years old may approach the unit, take preventive measures so they cannot reach
and touch the unit.
Install the indoor unit on the wall where the oor height is higher than 1600mm.
Before connecting all wires, please take the metal cover o, removing the screws as shown below:
4.3. 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.
To ensure optimal operation, an appropriate ambient temperature is between -25 and 60°C.
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.
WARNING
Risk of injury (Heavy Object).
Remember that this inverter is heavy (45kg), so users must carefully handle the unit during
installation, especially when mounting or removing it from a wall.
Choose the recommended drill head(as shown below) to drill 4 holes on the wall, 52-60mm deep.
1. Use a proper hammer to t the expansion bolt into the holes.
2. Carry the inverter and hold it, ensure the hanger aims at the expansion bolt, and x the inverter on the
wall.
3. Fasten the screw head of the expansion bolt to nish the mounting.

HYBRID INVERTER | Installer Manual18

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4.4. Function Port Denition

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Please follow the below steps to implement battery connection:
1. Please choose a suitable battery cable (appropriate rating) with the correct connector to attach to the
battery terminals.
2. Use a suitable screwdriver that matches the bolt size to unscrew the bolts to t the battery connectors.
Then tighten the bolts with the connectors in place with a torque of 24.5N.m in a clockwise direction.
3. Make sure the polarity is correct at both the battery and inverter terminals.
CAUTION
Reverse Polarity.
Before making the nal DC connection or closing DC breaker/disconnect, be sure positive (+) must
be connected to the positive (+) and negative (-) must be connected to the negative (-). A reverse
polarity connection on the battery will damage the inverter.
CAUTION
All wiring/connecting must be performed by qualied personnel. In addition, connecting the battery
with a suitable cable is essential for safe and ecient operation of the system
4.5. Battery Connection
For safe operation and compliance, an individual DC overcurrent protector or disconnection device is
required to connect the battery and the inverter. Users are recommended to utilise a suitable fuse and DC
isolator (see next page). Switching devices may not be required in some applications, but overcurrent pro-
tectors must be used. Please 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.)
8kW 1AWG 40 24.5N.m
10kW 1/0 AWG 60 24.5N.m
12kW 1/0 AWG 60 24.5N.m
Battery connector screw size: M10.