SunSynk SUNSYNK-3.6K-SG01LP1 User manual

v.26 (04/27/23
USER MANUAL
SUNSYNK-3.6K-SG01LP1 / SUNSYNK-3.6K-SG03LP1 /
SUNSYNK-5K-SG01LP1 / SUNSYNK-5K-SG03LP1
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]
SINGLE-PHASE
HYBRID INVERTER
PLEASE RETAIN FOR
FUTURE REFERENCE

SINGLE PHASE HI 3.6/5kW | 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 6
2. PRODUCT INTRODUCTION 7
2.1. Product Overview 7
2.2. Product Size 8
2.3. Product Features 9
2.4. 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. Mounting the Inverter 15
4.4. Battery Connection 16
4.4.1. Function port denition 18
4.4.2. Recommended DC Battery Protection 19
4.5. Connecting a Lithium Battery 19
4.6. Temperature Sensor Connection for Lead-Acid Battery 21
4.7. Connecting the AC 22
4.7.1. Recommended AC Surge Protector 23
4.8. PV Connection 24
4.8.1. PV module selection 24
4.8.2. PV module wiring 24
4.8.3. PV Protection 25
4.9. Installing the CT Coil 25
4.10. Meter Connection 27
4.10.1. System Connection for the CHNT Meter 27
4.11. Earth Connection (MANDATORY) 27
4.12. Wiring System for Inverter 29
4.13. Typical Application Diagram of Diesel Generator 30
4.14. Single-Phase Parallel Connection Diagram 31
4.15. Three-Phase Parallel Inverter 32

SINGLE PHASE HI 3.6/5kW | User Manual3
5. OPERATION 33
5.1. Switching ON/OFF 33
5.2. Display 33
5.2.1. LED indicators 33
5.2.2. Function buttons 33
5.3. LCD operation ow chart 34
5.4. Home page 35
5.5. Status Page 35
5.6. System Flow Page 36
5.7. Setup Page 37
5.8. Basic Setup 38
5.8.1. Set Time (Clock) 38
5.8.2. Set Company Name / Beeper / Auto dim 38
5.8.3. Factory Reset and Lock Code 39
5.9. Battery Setup Page 40
5.10. Generator & Battery Page 41
5.11. Battery Discharge Page 43
5.12. Setting Up a Lithium Battery 45
5.13. Program Charge & Discharge Times 51
5.14. Grid Supply Page 55
5.15. Advanced Settings for Paralleling Inverters 59
5.16. Connecting the DRM’s 62
5.17. Advanced Function Setup 63
5.18. Solar Power Generated 63
5.19. Grid Power 64
5.20. Advanced Settings for Wind Turbines 65
5.21. Advanced Settings for Auxiliary Load 66
6. Operation Modes 69
6.1. Mode I: Basic 69
6.2. Mode II: Generator 69
6.3. Mode III: With Aux-Load 70
6.4. Mode IV: AC Couple 70
7. Fault Codes 72

SINGLE PHASE HI 3.6/5kW | User Manual4
8. COMMISSIONING 76
8.1. Start-Up / Shutdown Procedure 76
8.2. Information for Commissioning the Inverter 76
8.3. GDFI Fault 77
9. MAINTENANCE 77
APPENDIX A 78
APPENDIX B 79
APPENDIX C 79
APPENDIX D 79
APPENDIX E 79

SINGLE PHASE HI 3.6/5kW | User Manual5
1. 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.
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.

SINGLE PHASE HI 3.6/5kW | User Manual6
1.3. 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.
1.4. 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 | User Manual7
2. 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.
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
ON
1 2
1
2
5
9
10
11
12
13
14
15
16
17
18
7
6
3
4
8
2.1. Product Overview

SINGLE PHASE HI 3.6/5kW | User Manual8
2.2. Product Size
Inverter Size
Mounting bracket

SINGLE PHASE HI 3.6/5kW | User Manual9
2.3. 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 | User Manual10
2.4. 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 | User Manual11
3. TECHNICAL SPECIFICATIONS
Model SUNSYNK-3.6K-SG01LP1 / SUNSYNK-3.6K-SG03LP1
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 90Ad.c (max.)
AC Input Voltage L/N/PE 220/230Va.c
AC Input Frequency 50/60Hz
AC Input Rated Current 16.4Aa.c
Max. AC Input Current 18Aa.c (max.)
Max. AC Input Power 3960W
Max. Apparent Output Power 3960VA
PV Input Voltage 370Vd.c (125Vd.c ~ 500Vd.c)
MPPT Input Voltage 150Vd.c ~ 425Vd.c
PV Input Current 13Ad.c + 13Ad.c
Max. PV Input Power 4680W
Max. PV Isc 17Ad.c + 17Ad.c
Utility-Interactive
AC Output Voltage L/N/PE 220/230Va.c
AC Output Frequency 50/60Hz
AC Output Rated Current 16.4Aa.c
Max. AC Output Current 18Aa.c (max.)
Max. AC Output Power 3960W
AC Output Rated Power 3960VA
AC Output Power Factor 0.95 leading to 0.95 lagging
Max. AC Isc 60Aa.c
Battery Discharge Voltage 40Vd.c ~ 60Vd.c
Battery Discharge Current 90Ad.c (max.)
Battery Discharge Power 3600W
Stand Alone
AC Output Voltage L/N/PE 220/230Va.c
AC Output Frequency 50/60Hz
AC Output Rated Current 16.4Aa.c
AC Output Rated Power 3960W
Max. Continuous AC Pass-through
Current 35Aa.c
Peak Output Power 7200W (10 seconds)
Battery Discharge Voltage 40Vd.c ~ 60Vd.c
Max. Discharge Current 90A (max.)
Compliance VDE-AR-N 4105:1028-11; DINVDE V 0124-100:2020-06; IEC/
EN62109-1/2:2010; IEC/EN62109-1/2:2011

SINGLE PHASE HI 3.6/5kW | User Manual12
Model SUNSYNK-5K-SG01LP1 / SUNSYNK-5K-SG03LP1
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 120Ad.c (max.)
AC Input Voltage L/N/PE 220/230Va.c
AC Input Frequency 50/60Hz
AC Input Rated Current 22.7Aa.c
Max. AC Input Current 25Aa.c (max.)
Max. AC Input Power 5500W
Max. Apparent Output Power 5500VA
PV Input Voltage 370Vd.c (125Vd.c ~ 500Vd.c)
MPPT Input Voltage 150Vd.c ~ 425Vd.c
PV Input Current 13Ad.c + 13Ad.c
Max. PV Input Power 6500W
Max. PV Isc 17Ad.c + 17Ad.c
Utility-Interactive
AC Output Voltage L/N/PE 220/230Va.c
AC Output Frequency 50/60Hz
AC Output Rated Current 22.7Aa.c
Max. AC Output Current 25Aa.c (max.)
Max. AC Output Power 5500W
AC Output Rated Power 5500VA
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 120Ad.c (max.)
Battery Discharge Power 5000W
Stand Alone
AC Output Voltage L/N/PE 220/230Va.c
AC Output Frequency 50/60Hz
AC Output Rated Current 22.7Aa.c
AC Output Rated Power 5500W
Max. Continuous AC Pass-through
Current 35Aa.c
Peak Output Power 10000W (10 seconds)
Battery Discharge Voltage 40Vd.c ~ 60Vd.c
Max. Discharge Current 120A (max.)
Compliance VDE-AR-N 4105:1028-11; DINVDE V 0124-100:2020-06; IEC/
EN62109-1/2:2010; IEC/EN62109-1/2:2011

SINGLE PHASE HI 3.6/5kW | User Manual13
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:
Datalogger x1
Parallel communicaon
cable x1

SINGLE PHASE HI 3.6/5kW | User Manual14
4.2. 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 | User Manual15
≥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.
4.3. 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 | User Manual16
Inverter hanging plate installation
4.4. 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 | User Manual17
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, go into the inverter. Please make sure the inverter connector is
fastened to a waterproof position by twisting it clockwise.
ON
1 2
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. 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.
For 3.6kW/5kW model, battery connector screw size: M6
24mm
8.4mm
DC Battery Input

SINGLE PHASE HI 3.6/5kW | User Manual18
4.4.1. Function port denition
Batt Temp
Sensor
CT Coil
L N
Inverter
ON
1 2
B HM G-V G-S T
Gen start-up
N/O Relay
Neutral
Earth
Bond
240V Coil
ATS240V
DIP Switch
ON
1 2
GV/GS
(diesel generator startup signal)
relay
coil
open
contact
G V/S
BMS 485
parallel_1parallel_2RS 485
BMS CAN DRMs
.
.
port.

SINGLE PHASE HI 3.6/5kW | User Manual19
4.4.2. Recommended DC Battery Protection
ON
1 2
Inverter
DC Isolator
Two Pole
Fuses
4.5. 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.

SINGLE PHASE HI 3.6/5kW | User Manual20
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.
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.