SunSynk SUNSYNK MAX User manual

SUNSYNK MAX
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.11 (04/04/23) PLEASE RETAIN FOR
FUTURE REFERENCE

SUNSYNK MAX | 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 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. Battery Temperature Sensor Connection 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. Earth Connection (MANDATORY) 27
4.11. Meter Connection 28
4.11.1. System Connection for the CHNT Meter 28
4.12. Wiring System for Inverter 29
4.13. Single-Phase Parallel Connection Diagram 30
4.14. Single-Phase Parallel with Diesel Generator Connection Diagram 31
4.15. Diesel Generator Connection Diagram 32

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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. OPERATING MODES 69
6.1. Mode I: Basic 69
6.2. Mode II: With Generator 69
6.3. Mode III: With Smart Load 70
6.4. Mode IV: AC Couple 70
7. Fault Codes 72
8. COMMISSIONING 76
8.1. Start-Up / Shutdown Procedure 76

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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

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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.

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1.3. Safety Instructions
WARNING
HIGH LIFE RISK DUE TO FIRE OR ELECTROCUTION.
The Sunsynk Max can only be installed by a qualied licensed electrical contractor. This is not a DIY
product.
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 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.

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2. PRODUCT INTRODUCTION
The Sunsynk MAX is the most powerful low-voltage inverter in the world, achieving a maxium output power
of 16kW and battery charge current of 300A. This power management tool allows the user to hit those ‘par-
ity’ 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. Product Overview
1. Inverter Indicators 6. Modbus(RS-485) Port 11. PV input with two MPPT
2. LCD Display 7. Parallel port 12. Generator input
3. Function Buttons 8. Battery input connectors 13. Load
4. DC Switch 9. Functon Port 14. Grid
5. Power on/o button 10. Battery(CANBus) Port 15. WiFi Interface

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2.2. Product Size

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2.3. Product Features
INTERACTIVE
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
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 the application
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
ACDC AlarmNormal
Colorful touch LCD, IP65 protection degree
DC couple and AC couple to retrot existing solar system
Max. 16 inverters in parallel; Support multiple batteries parallel
Max. charging/discharging current of 300A
16kW super hybrid inverter
Support storing energy from diesel generator
275
16
16

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2.4. Basic System Architecture
The following illustraton shows basic applicaton of this inverter.
It also includes following devices to have a Complete running system.
Generator or Utlity
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 SUNSYNK MAX
Battery Input Data
Battery Type Lead-acid or Lithium-ion
Battery Voltage Range 43~60V
Max. Charge Current 300A
Max. Discharge Current 300A
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 18000W
Max PV Input Voltage 450V
MPPT Range 250V~450V
Start-up Voltage 150V
PV Input Current 26A + 26A + 26A
Max. PV Isc 44A + 44A + 44A
No. of MPPT / Strings Per
MPPT 3 / 2
AC Output Data
Max. On-Grid AC Power 16000W
Max. O-Grid AC Power 13000W
Peak Power (o-grid) 2 times of rated power, 10 S
AC Output Rated Current 65A
Max AC Current 70A
Max Continuous AC
Passthrough 150A
Bypass Current 150A
Frequency Range 45Hz ~55Hz
Voltage Range 211V ~ 264V
Grid Type Single-Phase
Current Harmonic Distortion THD<3%(Linear load<1.5%)
Eciency
Max. Eciency 97.60%
Euro Eciency 97.00%
MPPT 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, DC
Battery Current Protection
Certications and Standards
Grid Regulation VDE 0126, AS4777, NRS2017, G98, G99, IEC61683, IEC62116, IEC61727,
RD1699:2011, XP C15-712-3:2019-05
Safety EMC / Standard IEC62109-1, IEC62109-2, EN61000-6-1, EN61000-6-3

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General Data
Operating Temperature
Range -25~55°C
Cooling Fan
Noise <30dB
Communication with BMS RS485; CAN
Weight 34.5kg
Size 422W×702H×281D 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:
Datalogger x1

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4.2. Selecting the Mounting Area
This Sunsynk MAX 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.
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.
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.

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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.
4.3. Mounting the Inverter
Choose the recommended drill head (as shown below pic) to drill 4 holes in the wall, 82-90mm 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 it from a wall.

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82~90mm
[(3.23 in.) to (3.54 in.)]
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. 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.)
Sunsynk Max 1/0 AWG 50 13.6N.m

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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.
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 13.6 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
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.
16mm
8.5mm
DC Battery Input

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4.4.1. Function Port Denition
/for neutral/earth bonding.

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4.4.2. Recommended DC Battery Protection
4.5. 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.

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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.