SunSynk SYNK-5K-SG03LP1 User guide

INSTALLER MANUAL
SYNK-3.6K-SG03LP1
SYNK-5K-SG03LP1
www.sunsynk.com
[email protected]
[email protected]
SINGLE-PHASE
HYBRID INVERTER
v.35 (12/11/23) PLEASE RETAIN FOR
FUTURE REFERENCE

SINGLE PHASE HI 3.6/5kW | Installer Manual2
Table of Contents
SAFETY 3
General Safety 3
Symbols/Safety Signs 3
Safety Instructions 5
Product Disposal 5
PRODUCT INTRODUCTION 6
Product Overview 6
Product Size 7
Product Features 8
Basic System Architecture 9
TECHNICAL SPECIFICATIONS 10
INSTALLATION 12
Parts List 12
Selecting the Mounting Area 13
Mounting the Inverter 14
Battery Connection 15
Function Port Denition 17
Recommended DC Battery Protection 18
Connecting a Lithium Battery 18
Lead-Acid Battery Temperature Sensor 20
Connecting the AC 21
Recommended AC Surge Protector 22
PV Connection 23
PV Module Selection 23
PV Module Wiring 23
PV Protection 24
Installing the CT Coil 24
Meter Connection 26
System Connection for the CHNT Meter 26
Earth Connection (MANDATORY) 26
Wiring System for Inverter 27
Typical Application of Diesel Generator 28
Single-Phase Parallel Connection 29
Three-Phase Parallel Inverter 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
Advanced Function Setup 61
Solar Power Generated 61
Grid Power 62
Advanced Settings for Wind Turbines 63
Advanced Settings for Auxiliary Load 64
OPERATION MODES 67
Mode I: Basic 67
Mode II: Generator 67
Mode III: With Aux-Load 68
Mode IV: AC Couple 68
Mode V: Grid-Tied 70
FAULT CODES 70
COMMISSIONING 74
Start-Up / Shutdown Procedure 74
Inverter Commissioning Info 74
GDFI Fault 75
MAINTENANCE 75
APPENDIX A 76
APPENDIX B 77
APPENDIX C 77
APPENDIX D 77
APPENDIX E 77

SINGLE PHASE HI 3.6/5kW | Installer Manual3
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. Refer to the operating instructions.
5min
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.
Keep the equipment well-ventilated.
ONLY qualied personnel should install
or perform maintenance work on the
units.
This product's batteries contain an ex-
plosive, self-reactive material that could
blow up when heated.
Warranty Void if Seal is Broken
Be careful when touching the inverter!
It is an electrical product with risk of
electric shock and heating.
Store below 25°C.
Indicates that this product is recyclable. Keep the product out of reach of chil-
dren!
Keep away from open ames and
moisture.
Avoid unsuitable shoes for installing
and operating the inverter.

SINGLE PHASE HI 3.6/5kW | Installer Manual4
V DC 48 V
230V
15.70 A
BATTERY INPUT
Battery Discharge Voltage, Battery
Discharge Current, Input Voltage Type,
Battery Discharge Power.
V DC 48 V
230V
15.70 A
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.
V DC 48 V
230V
15.70 A
TEMPERATURE
Ambient, Min & Max.
V DC 48 V
230V
15.70 A
PV INPUT
PV Input Voltage, Number of MPPT's,
MPPT Input Current & Max PV ISC.
V DC 48 V
230V
15.70 A
Net Weight in Kilograms.
V DC 48 V
230V
15.70 A
Protective Conductor Terminal or Earth
Ground Terminal.
V DC 48 V
230V
15.70 A
Single Phase.
V DC 48 V
230V
15.70 A
Three Phase.
V DC 48 V
230V
15.70 A
Inverter DC to AC.
WARRANTY REGISTRATION
Scan the QR code to access our web-
site and sign up for the manufacturer’s
warranty.
MANUAL DOWNLOAD
Download the latest version of the
instruction manual by scanning the QR
code.
Do not dispose the device, accesso-
ries, and packaging with regular waste.
Follow local ordinances or contact the
manufacturer for disposal guidance.
V DC 48 V
230V
15.70 A
CONTINUOUS OUTPUT
CURRENT
Maximum Continuous Output Current,
Output Frequency and Voltage, & AUX
(programmable AC output on battery
SOC).
3

SINGLE PHASE HI 3.6/5kW | Installer Manual5
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 the 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 the required specications to select the appropri-
ate cable size. It is very important to operate this inverter correctly.
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 causing an explosion.
Please strictly follow the installation procedure when you want to disconnect AC or DC terminals.
Please refer to this manual's "Installation" section for details.
Grounding instructions - this inverter should be connected to a permanent grounded wiring system. Be
sure to comply with local requirements and regulations to install this inverter.
Never cause AC output and DC input to short-circuit. 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 Single-Phase Hybrid Inverter can only be installed by a qualied licensed electrical
contractor. This is not a DIY product.

SINGLE PHASE HI 3.6/5kW | Installer Manual6
PRODUCT INTRODUCTION
This multifunctional inverter combines the functions of an inverter, solar charger and battery charger to oer
uninterruptible power support with a portable size. Its comprehensive LCD display oers user-congurable
and easily accessible button operations such as battery charging, AC/solar charging, and acceptable input
voltage based on dierent applications.
Product Overview
1. Inverter Indicators 7. DRMs Port 13. Power On/O Button
2. LCD Display 8. Parallel Port 14. DC Switch
3. Function Buttons 9. Function Port 15. PV Input with Two MPPT
4. Battery Input Connectors 10. Generator Input 16. Battery
5. RS485/Meter Port 11. Load 17. Temperature Sensor
6. BMS 485/CAN Port 12. Grid 18. Wi-Fi Interface
��
1 2
1
2
5
9
10
11
12
7
6
3
4
8
13
14
15
16
17
18

SINGLE PHASE HI 3.6/5kW | Installer Manual7
Product Size
Inverter Size

SINGLE PHASE HI 3.6/5kW | Installer Manual8
Product Features
INTERACTIVE
Easy and simple to understand display
Supporting Wi-Fi or GSM monitoring
Visual power ow screen
Smart settable 3-stage MPPT charging for optimized battery performance
Auxiliary load function
Parallel / multi invert function grid-tied and o-grid
COMPATIBLE
Compatible with main electrical grid voltages or power generators
Compatible with wind turbines
220V single phase, pure sine-wave inverter
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

SINGLE PHASE HI 3.6/5kW | Installer Manual9
Basic System Architecture
The following illustration shows the basic application of this inverter.
It also includes the 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
requirements.
This inverter can power all kinds of appliances in a home or one environment, including motor-type
appliances such as refrigerators and air conditioners

SINGLE PHASE HI 3.6/5kW | Installer Manual10
TECHNICAL SPECIFICATIONS
Model SYNK-3.6K-SG03LP1 SYNK-5K-SG03LP1
Battery Input Date
Battery Type Lead-acid or Li-Ion
Battery Voltage Range 48Vd.c (40Vd.c ~ 60Vd.c)
Max. Charging/Discharging Current 90Ad.c (max.) 120Ad.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 4680W 6500W
PV Input Voltage 370V (125V~500V)
MPPT Range 150~425V
Full Load DC Voltage Range 300~425V
Start-up Voltage 125V
PV Input Current 13Ad.c + 13Ad.c
No. of MPPT Trackers 2
No. of Strings Per MPPT Tracker 1+1
AC Output Data
Rated AC Output and UPS Power 3600W 5000W
Max. AC Output Power 3960W 5500W
Max. AC Output Apparent Power 3960VA 5500VA
Peak Power(o grid) 2 times of rated power, 10s
AC Output Rated Current 16.4/15.7Aa.c 22.7/21.7Aa.c
Max. AC Current 18/17.2Aa.c 25/23.9Aa.c
Max. Continuous AC Passthrough 35A
Power Factor 0.8 leading to 0.8 lagging
Output Frequency and Voltage 50/60Hz; 220/230 (single phase)
Grid Type Single 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 96.50%
MPPT Eciency >99%
Protection
PV Input Lightning Protection Integrated
Anti-islanding Protection Integrated
PV String Input Reverse Polarity
Protection Integrated
Insulation Resistor Detection Integrated
Residual Current Monitoring Unit Integrated
Output Over Current Protection Integrated
Output Shorted Protection Integrated
Surge Protection DC Type II / AC Type II
Over Voltage Category DC Type II / AC Type III

SINGLE PHASE HI 3.6/5kW | Installer Manual11
Model SYNK-3.6K-SG03LP1 SYNK-5K-SG03LP1
Certications and Standards
Grid Regulation VDE4105, IEC61727/62116, VDE0126, AS4777.2, CEI 0 21, EN50549-
1, G98, G99, C10-11, UNE217002, NBR16149/NBR16150
EMC/Safety Regulation IEC/EN 62109-1, IEC/EN 62109-2, IEC/EN 61000-6-1, IEC/EN 61000-6-
2, IEC/EN 61000-6-3, IEC/EN 61000-6-4
General Data
Operating Temperature Range -40~60 ºC, >45 ºC Derating
Cooling Smart cooling
Noise <30 dB
Communication with BMS RS485; CAN
Weight 22.5kg
Cabinet size 330W×580H×232D mm (Excluding connectors and brackets)
Protection Degree IP65
Installation Style Wall-mounted
Warranty 5 years

SINGLE PHASE HI 3.6/5kW | Installer Manual12
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:
Wall Mounting Bracket
x1
Hybrid Inverter
x1
Parallel Communication
Cable x1
L-type Hexagon Wrench
x1
Stainless Steel Anti-Collision
Bolt M6*60x4
Stainless Steel Mounting
Screws M4*12 x2
User Manual x1 Battery Temperature Sensor
x1
Data Logger
x1
Sensor Clamp
x1
Battery Magnetic Ring
x1
BMS Magnetic Ring
x1

SINGLE PHASE HI 3.6/5kW | Installer Manual13
Selecting the Mounting Area
Considering the following points before selecting where to install:
Please select a vertical wall with load-bearing capacity for installation, suitable for installation on concrete
or other non-ammable surfaces, installation is shown below.
Install this inverter at eye level in order to allow the LCD display to be read at all times.
The ambient temperature is recommended to be between -40~60ºC to ensure optimal operation.
Be sure to keep other objects and surfaces as shown in the diagram to guarantee sucient heat dissipa-
tion and enough space to remove wires.
This 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
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
electricity 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 is above 95%
Areas where the air circulation is too low.
Please AVOID direct sunlight, rain exposure, snow laying up during installation and operation. Before con-
necting all wires, please take o the metal cover by removing screws as shown below:

SINGLE PHASE HI 3.6/5kW | Installer Manual14
≥500mm
≥500mm
Choose the recommended drill head (as shown below pic) to drill 4 holes in the wall, 62-70mm deep.
1. Use a proper hammer to t the expansion bolt into the holes.
2. Carry and hold the inverter, 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 be careful in handling the unit during installation
especially when mounting or removing from a wall.
Mounting the Inverter
WARNING
For proper air circulation to dissipate heat, allow a clearance of approx. 50cm to the side and approx.
50cm above and below the unit. And 100cm to the front.
Install the indoor unit on the wall where the oor height 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.

SINGLE PHASE HI 3.6/5kW | Installer Manual15
Inverter hanging plate installation
Battery Connection
For safe operation and compliance, a separate DC over-current protector or disconnect device is required
between the battery and the inverter. Switching devices may not be required in some applications, 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.)
3.6kW / 5kW 2AWG 25 5.2N.m
Inverter Hanging Plate Installation

SINGLE PHASE HI 3.6/5kW | Installer Manual16
Please follow the below steps to implement battery connection:
Please choose a suitable battery cable with the correct connector which can well t into the battery
terminals.
Use a suitable screwdriver to unscrew the bolts and t the battery connectors in, then fasten the bolt
with the screwdriver, ensuring the bolts are lightened with a torque of 5.2 N.m in a clockwise direction.
Make sure the polarity at both the battery and inverter is correctly connected.
In case of children touching or insects entering the inverter. Please make sure the inverter connector is
fastened to a waterproof position by twisting it clockwise.
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.
WARNING
All wiring/connecting must be performed by qualied personnel. Before making the nal DC
connection 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.
ON
1 2
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.
For 3.6kW/5kW model, battery
connector screw size: M6
24mm
8.4mm
DC Battery Input

SINGLE PHASE HI 3.6/5kW | Installer Manual17
Function Port Denition
ON
1 2
ON
1 2
Batt Temp
Sensor
CT Coil
L N
Inverter
ON
1 2
B HM G-V G-S T
Gen start-up
N/O Relay
DIP Switch
GV/GS
(Diesel Generator Startup Signal)
relay
coil
open
contact
G V/S
RS 485/
METER
parallel_1parallel_2
BMS 485/
CAN DRMs
BT: Battery temperature sensor for lead
acid battery.
HM: Current transformer for “Zero Export
to CT” mode.
GV/GS: Dry contact signal for startup the diesel generator.
When the “GEN signal” is active, the open contact (GV/GS) will switch on (no voltage output).
If the “Signal ISLAND MODE” is ticked, the GS port will be the dry contact signal for startup the
diesel generator. If the “Signal ISLAND MODE” is not ticked, the GV port will be the dry contact
signal for startup the diesel generator.
DIP Switch: Parallel communication resistor.
If the number of inverter in the parallel system is less
than or equal to 6, all inverter’s DIP Switch (1&2)
needs to be ON position. If the number of inverter in
the parallel system exceeds 6, the main 6pcs
inverter’s DIP Switch needs to be ON position.
And the other inverter’s DIP Switch (1&2)
needs to be OFF positon.
RS 485/METER: RS 485 port for battery
communication.
BMS 485/CAN: BMS port for battery
communication.
DRMs: For Australia market only.
Parallel 1: Parallel communication port 1
(CAN Interface).
Parallel 2: Parallel communication port 2
(CAN Interface).

SINGLE PHASE HI 3.6/5kW | Installer Manual18
Recommended DC Battery Protection
Inverter
DC Isolator
Two Pole
Fuses
ON
1 2
ON
1 2
Connecting a Lithium Battery
When connecting a Lithium Battery, follow the connection steps below and check ‘Setting up a Lithium
Battery’ to connect with an inverter.
1. Connect the correct cable diameter following the battery manufacture specications and recommended
safety devices.
2. Connect a communication cable from the batteries to the inverter in compliance with the battery
manufacturer's 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 misconnect them.
3. Connect the power and communication cables to the inverter correctly.
Max 100 AMP Max 200 AMP
Both cables must be
the same length

SINGLE PHASE HI 3.6/5kW | Installer Manual19
NOTE:
When connecting more than one battery, ensure they are set in the conguration of ‘master and
slave’.
Depending on the battery type, the inverter should be capable of controlling the batteries BMS.
Therefore, 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
connected.

SINGLE PHASE HI 3.6/5kW | Installer Manual20
Lead-Acid Battery Temperature Sensor
ON
1 2
ON
1 2
1 2
Temp. sensor