SunSynk SYNK-8K-SG04LP3 User guide

v.34 (12/06/23)
INSTALLER MANUAL
SYNK-8K-SG04LP3
SYNK-10K-SG04LP3
SYNK-12K-SG04LP3
THREE-PHASE
HYBRID INVERTER
PLEASE RETAIN FOR
FUTURE REFERENCE
www.sunsynk.com
[email protected]
[email protected]

THREE PHASE HI 8~12kW | 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.

THREE PHASE HI 8~12kW | Installer Manual3
Table of Contents
SAFETY 4
General Safety 4
Symbols/Safety Signs 4
Safety Instructions 6
Product Disposal 6
PRODUCT INTRODUCTION 7
System Overview 7
Product Size 8
Features 9
Basic System Architecture 10
TECHNICAL SPECIFICATIONS 11
INSTALLATION 13
Parts List 13
Selecting the Mounting Area 14
Mounting the Inverter 15
Battery Connection 17
Function Port Denition 18
Lead-Acid Battery Temperature Sensor 19
AC and Backup Load Connection 20
PV Connection 21
PV Module Selection 21
PV Module Wiring 21
Connecting the CT Coil 23
Meter Connection 24
System Connection for the CHiNT Meter 24
Earth Connection (MANDATORY) 24
Wiring System for Inverter 26
Wiring Diagram 27
Typical Application of Diesel Generator 29
Three Phase Parallel Connection 30
OPERATION 31
Switching ON/OFF 31
Display 31
LED Indicators 31
Function Buttons 31
LCD Operation Flow Chart 32
Home Page 33
Status Page 33
System Flow Page 34
Setup Page 35
Basic Setup 36
Set Time (Clock) 36
Set Company Name / Beeper / Auto dim 36
Factory Reset and Lock Code 37
Inverter Remote Control 38
Battery Setup Page 38
Generator & Battery Page 39
Battery Discharge Page 41
Setting Up a Lithium Battery 43
Program Charge & Discharge Times 49
Grid Supply Page 53
Paralleling Inverters Advanced Settings 57
Connecting the DRM’s 60
Solar Power Generated 61
Grid Power 61
Advanced Settings for Wind Turbines 62
Advanced Settings for Auxiliary Load 63
OPERATION MODES 66
Mode I: Basic 66
Mode II: With Generator 66
Mode III: With Aux-Load 66
Mode IV: AC Couple 67
Mode V: Grid-Tied 67
FAULT CODES 68
COMMISSIONING 72
Start-Up / Shutdown Procedure 72
Inverter Commissioning Info 73
GDFI Fault 73
MAINTENANCE 73
APPENDIX A 74
APPENDIX B 75
APPENDIX C 75
APPENDIX D 75
APPENDIX E 75

THREE PHASE HI 8~12kW | Installer Manual4
SAFETY
This device should only be used in accordance with the instructions within this manual and in compli-
ance with local, regional, and national laws and regulations. Only allow this device to be installed, oper-
ated, maintained, and repaired by other people 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.
General Safety
Symbols/Safety Signs
This symbol indicates information that if
ignored, could result in personal injury,
physical damage or even death due to
incorrect handling.
CE mark is attached to the solar
inverter to verify that the unit follows
the provisions of the European Low
Voltage and EMC Directives.
Risk of burn. Keep the equipment well-ventilated.
Risk of electric shock.
DO NOT touch the terminal or remove
the shell within 5 minutes after discon-
necting all power.
The UKCA marking is used for products
placed on the market in Great Britain
(England, Scotland and Wales). The
UKCA marking applies to most prod-
ucts for which the CE marking could be
used.
5min
This product's batteries contain an ex-
plosive, self-reactive material that could
blow up when heated.
Do not disassemble or alter the battery
in any way. Do not strike or puncture
the battery.
KG
The Battery is heavy and can cause inju-
ry if not handled safely.
ONLY qualied personnel should install
or perform maintenance work on the
units.
Be careful when touching the inverter!
It is an electrical product with risk of
electric shock and heating.
Warranty Void if Seal is Broken.
Do not place near open re or incin-
erate. Do not use near heaters or hot
temperature sources.
Keep the product out of reach of chil-
dren!
Do not stand on. Avoid unsuitable shoes for installing
and operating the inverter.
Do not step or put any objects onto the
battery.
Do not drop, deform, or impact the
battery.

THREE PHASE HI 8~12kW | Installer Manual5
1Single Phase. 3Three Phase.
Protective Conductor Terminal or Earth
Ground Terminal. Rechargeable.
Do not submerge the battery in water or
expose it to moisture or liquid.
Keep out of reach of children, animals,
and insects.
Do not expose the product to sunlight. Inverter DC to AC.
Li-ion Battery. KG Net Weight in Kilograms.
BATTERY INPUT
Battery Discharge Voltage, Battery
Discharge Current, Input Voltage Type,
Battery Discharge Power.
PV INPUT
PV Input Voltage, Number of MPPT's,
MPPT Input Current & Max PV ISC.
Direct Current. Indicates that this product is recyclable.
AC OUTPUT
Output Voltage, Input Voltage Type, Ac
Output Rated Current, Max AC Current,
Output Frequency, Max AC ISC, Power
Factor & AC Output Rated Power.
CONTINUOUS OUTPUT
CURRENT
Maximum Continuous Output Current,
Output Frequency and Voltage, & AUX
(programmable AC output on battery
SOC).
Charging. Discharging.
Follow the indicated temperatures. TEMPERATURE
Ambient, Min & Max.
MANUAL DOWNLOAD
Download the latest version of the
instruction manual by scanning the QR
code.
WARRANTY REGISTRATION
Scan the QR code to access our web-
site and sign up for the manufacturer’s
warranty.
Do not dispose the device, accesso-
ries, and packaging with regular waste.
Follow local ordinances or contact the
manufacturer for disposal guidance.
Refer to the operating instructions.
Contact the supplier within 24 hours if
there is anything wrong. In case of leak-
age contact with eyes or skin, imme-
diately clean with water and seek help
from a doctor.

THREE PHASE HI 8~12kW | Installer Manual6
Safety Instructions
This chapter contains important safety and operating instructions. Read and keep this manual for future
reference.
Before using the inverter, please read the instructions and warning signs of the battery and correspond-
ing sections in the instruction manual.
Do not disassemble the inverter. If you need maintenance or repair, take it to a professional service
center.
Improper reassembly may result in electric shock or re.
To reduce risk of electric shock, disconnect all wires before attempting any maintenance or cleaning.
Turning o the unit will not reduce this risk.
Never charge a frozen battery.
For optimum operation of this inverter, please follow required specication to select appropriate cable
size. It is very important to correctly operate this inverter.
Be very cautious when working with metal tools on or around batteries. Dropping a tool may cause a
spark or short circuit in batteries or other electrical parts, even cause an explosion.
Please strictly follow installation procedure when you want to disconnect AC or DC terminals.
Please refer to "Installation" section of this manual for the details.
Grounding instructions - this inverter should be connected to a permanent grounded wiring system. Be
sure to comply with local requirements and regulation to install this inverter.
Never cause AC output and DC input short circuited. Do not connect to the mains when DC input short
circuits.
Product Disposal
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.

THREE PHASE HI 8~12kW | Installer Manual7
PRODUCT INTRODUCTION
The Sunsynk Three-Phase Hybrid Inverter is a multifunctional inverter, combining functions of inverter, solar
charger and battery charger to oer uninterruptible power support with portable size. Its comprehensive
LCD display oers user congurable and easy accessible button operation such as battery charging, AC/solar
charging, and acceptable input voltage based on dierent applications.
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
1
2
3
4
5
8
9
12
13
14
15
16
7
6
10
11

THREE PHASE HI 8~12kW | Installer Manual8
Product Size
254.0 mm
279.0 mm
240.00 mm
120.00 mm
279.0 mm
450.9 mm
422.0 mm
782.5 mm
658.0 mm
422.0 mm
363.00 mm

THREE PHASE HI 8~12kW | Installer Manual9
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;

THREE PHASE HI 8~12kW | Installer Manual10
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.

THREE PHASE HI 8~12kW | Installer Manual11
TECHNICAL SPECIFICATIONS
Model SYNK-8K-SG04LP3 SYNK-10K-SG04LP3 SYNK-12K-SG04LP3
Battery Input Date
Battery Type Lead-acid or Li-Ion
Battery Voltage Range 40Vd.c ~ 60Vd.c
Max. Charging/Discharging
Current 190Ad.c (max.) 210Ad.c (max.) 240Ad.c (max.)
Charging Curve 3 Stages / Equalization
External Temperature Sensor Yes
Charging Strategy for Li-Ion
Battery Self-adaption to BMS
PV String Input Data
Max. DC Input Power 10400W 13000W 15600W
PV Input Voltage 550Vd.c (160Vd.c ~ 800Vd.c)
MPPT Range 200Vd.c ~ 650Vd.c
Start-up Voltage 160V
PV Input Current 13Ad.c + 13Ad.c 26Ad.c + 13Ad.c
Max. PV Isc 17Ad.c + 17Ad.c 34Ad.c + 17Ad.c
No. of MPPT Trackers 2
No. of Strings Per MPPT Tracker 1+1 2+1
AC Output Data
Rated AC Output and UPS Power 8000W 10000W 12000W
Max. AC Output Power 8800W 11000W 13200W
Peak Power(o grid) 2 times of rated power, 10s
AC Output Rated Current 12.1/11.6A 15.2/14.5A 18.2/17.4A
Max. AC Current 13.4/12.8A 16.7/15.9A 20/19.1A
Max. Three-phase Unbalanced
Output Current 18.2/17.4A 22.7/21.7A 27.3/26.1A
Max. Output Short Circuit Current 75A
Max. Continuous AC Passthrough 45A
Output Frequency and Voltage 50/60Hz;3L/N/PE 220/380, 230/400Vac (Three phase)
Grid Type Three phase
Total Harmonic Distortion (THD) <3% (of nominal power)
DC current injection <0.5% ln
Eciency
Max. Eciency 97.60%
Euro Eciency 97.00%
MPPT Eciency >99%
Protection
Integrated
PV Arc Fault Detection, PV Input Lightning Protection,
Anti-islanding Protection, PV String Input Reverse Polarity Protection,
Insulation Resistor Detection, Residual Current Monitoring Unit,
Output Over Current Protection, Output Shorted Protection
Surge Protection DC Type III / AC Type III
Over Voltage Category DC Type II / AC Type III

THREE PHASE HI 8~12kW | Installer Manual12
Certications and Standards
Grid Regulation EN 50549-1, AS-NZS 4777.2, NRS 097-2-1; Additional connections
available upon request
EMC/Safety Regulation IEC/EN 61000-6-1/2/3/4, IEC/EN 62109-1, IEC/EN 62109-2
General Data
Operating Temperature Range -40~60 ºC, >45 ºC Derating
Cooling Smart cooling
Noise ≤45 dB
Communication with BMS RS485; CAN
Net Weight 38.5kg
Gross Weight 47.5kg
Cabinet size 422W×702H×281D (Excluding connectors and brackets)
Protection Degree IP65
Installation Style Wall-mounted
Warranty 5 years

THREE PHASE HI 8~12kW | Installer Manual13
INSTALLATION
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:
SET
Wall Mounting Bracket
x1
Hybrid Inverter
x1
Stainless Steel Anti-Collision
Bolt M8×80
x4
Parallel Communication
Cable x1
L-type Hexagon Wrench
x1
Battery Temperature Sensor
x1
User Manual x1 Data Logger x1 Meter (Optional) x1
Three-Phase Smart Meter
ESC
Sensor Clamp
x 3
DC+/DC- Plug connectors
including metal terminal
xN
Battery Magnetic Ring
x 1
BMS Magnetic Ring
x 1

THREE PHASE HI 8~12kW | Installer Manual14
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
Wi-Fi or GSM monitoring.
≥500mm
≥500mm
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.

THREE PHASE HI 8~12kW | Installer Manual15
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:
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 -40 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.
Choose the recommended drill head(as shown below) to drill 4 holes on the wall, 82-90mm 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.
WARNING
Risk of injury (Heavy Object).
Remember that this inverter is heavy, so users must carefully handle the unit during installation,
especially when mounting or removing it from a wall.
82-90mm
[(3,23in) to (3,54in)]

THREE PHASE HI 8~12kW | Installer Manual16
Inverter hanging plate installation

THREE PHASE HI 8~12kW | Installer Manual17
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.
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 50 24.5N.m
10kW 1/0 AWG 50 24.5N.m
12kW 1/0 AWG 50 24.5N.m
For 8/10/12kW model, battery
connector screw size: M10
29.54mm
15.3/16mm
10.5mm
DC Battery Input
2/1AWG Wire Size
30mm
30mm
Pass the battery power cable
through the magnetic ring and
wrap it around the magnetic
ring two times.
Pass the BMS communication cable
through the magnetic ring and wrap
it around the magnetic ring four times.
WARNING
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.
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

THREE PHASE HI 8~12kW | Installer Manual18
Function Port Denition
Batt Temp
Sensor
1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8
CT -L1
CT -L2
CT -L3
Gen start-up
N/O Relay
Parallel_A
CN1: TEMP: 1,2
CT_1: 3,4
CT_2: 5,6
CT_3: 7,8
Parallel_B Meter-485
Modbus BMS
GS (diesel generator startup signal)
relay
coil
open
contact
G S
CN2 : G_start: 1,2
G_valve: 3,4
Grid_Ry: 5,6
RSD: 7+, 8-
CN1 CN2
Inverter
TEMP (1,2): battery temperature sensor for
lead acid battery.
CT-L1 (3,4): current transformer (CT1) for
“zero export to CT”mode clamps
on L1 when in three phase system.
CT-L2 (5,6): current transformer (CT2) for
“zero export to CT” mode clamps
on L2 when in three phase system.
CT-L3 (7,8): current transformer (CT3) for “zero export to CT” mode clamps on L3 when
in three phase system.
G-valve (3,4): Dry contact output. When the inverter is
in off-grid mode and the “Signal ISLAND MODE” is
checked, the dry contact will switch on.
Grid_Ry (5,6): reserved.
RSD (7,8): When the battery is connected and
the inverter is in “ON” status, it will provide
12Vdc.
CN1:
CN2:
G-Start (1,2): dry contact signal for startup the diesel generator. When the "GEN signal" is
active, the open contact (GS) will switch on (no voltage
output).
Parallel A: Parallel communication
port 1 (CAN interface).
Parallel B: Parallel communication
port 2 (CAN interface).
Meter_485: for energy meter
communication
Modbus: Reserved.
BMS: BMS port for battery
communication (CAN/RS485).

THREE PHASE HI 8~12kW | Installer Manual19
Lead-Acid Battery Temperature Sensor
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.
Temp. CT
12
Inverter

THREE PHASE HI 8~12kW | Installer Manual20
AC and Backup Load Connection
Before connecting to the main grid, please install a separate AC Breaker (MCB) between the inverter and the
grid. In addition, it is recommended the installation of an AC Breaker between the backup load and inverter.
This will ensure the inverter can be disconnected safely during maintenance and fully protect the system
from over-current. The recommended of AC breaker for the load port is 63A for 8kW, 63A for 10kW and 63A
for 12kW. The recommended of AC breaker for the grid port is 63A for 8kW, 63A for 10kW and 63A for 12kW.
There are three terminal blocks marked as GRID, LOAD, and GEN. Please do not confuse input and output
connections.
GEN/AUX Generator connection.
GRID This works like a conventional grid-tied inverter. It is both an input and output connec-
tion for non-essential load and supply.
LOAD Connection of essential loads such as lighting, security systems, and internet.
Model Wire Size Cable (mm2) Torque Value (max.)
8/10/12kW 10 AWG 6 1.2N.m
Please follow the steps below to implement GRID, LOAD, and GEN port connections:
1. Before making GRID, LOAD, and GEN port connections, make sure to turn o the AC breaker or discon-
nector rst.
2. Remove a 10mm sleeve from each wire, unscrew the bolts, insert the cables according to the polarities
indicated on the terminal block and tighten the terminal screws. Ensure the connection is complete.
3. Then, insert AC output wires according to the polarities indicated on the terminal block and tighten the
terminal. Make sure to connect corresponding N wires and PE wires to related terminals as well.
4. Ensure the wires are securely connected.
5. Check that the AC power source is isolated before attempting to connect it to the inverter. Insert AC
output wires according to the polarities indicated on the terminal block and tighten the terminal screws.
Be sure to connect the corresponding N wires and PE wires to the correct terminals and ensure the
wires are securely connected.
WARNING
All wiring must be performed by qualied personnel. System safety and ecient operation need to
use appropriate cable for AC input connection. To reduce the risk of injury, please use the recom-
mended cable below.