SunSynk SUNSYNK-3.6K-SG01/03LP1 User guide

HYBRID PARITY
(SUPER) INVERTER
INSTALLER MANUAL
SUNSYNK-3.6K-SG01/03LP1, SUNSYNK-3.6K-SG02LP1, SUNSYNK-5K-SG01/03LP1, SUNSYNK-5K-
SG02LP1, SUNSYNK-8K-SG01LP1, SUNSYNK-8K-SG02LP1
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 / [e-mail]
www.globaltechhk.com
Version
6
.0 (0
8/04
/2021)

All these models fall into two cabinet / PCB types 3.6kW / 5.5kW (Small) and 8.8kW
(Large):
5.5kW Type:
SUNSYNK-3.6K-SG01/03LP1
SUNSYNK-3.6K-SG02LP1
SUNSYNK-5K-SG01/03LP1
SUNSYNK-5K-SG02LP1
8.8kW Type
SUNSYNK-8K-SG01LP1
SUNSYNK-8K-SG02LP1

INDEX
1. SAFETY 5
1.1. G
ENERAL
S
AFETY
I
NFORMATION
5
1.2. S
YMBOLS
5
1.3. S
AFETY
I
NSTRUCTIONS
6
1.4. D
ISPOSAL
R
EMARKS
6
2. PRODUCT INTRODUCTION 7
2.1. S
YSTEM
O
VERVIEW
7
3. TECHNICAL SPECIFICATIONS 9
3.1. S
YSTEM
D
IAGRAM
14
4. INSTALLATION 15
4.1. S
ELECTING THE
M
OUNTING
A
REA
15
4.2. M
OUNTING THE
I
NVERTER
16
4.3. B
ATTERY
C
ONNECTION
17
4.4. C
ONNECTING A
L
ITHIUM
B
ATTERY
19
4.5. B
ATTERY
T
EMPERATURE
C
ONNECTION
20
4.6. C
ONNECTING THE
AC 22
4.7. I
NSTALLING THE
CT C
OIL
24
4.8. E
ARTH
C
ONNECTION
(MANDATORY) 26
4.9. C
ONNECTING THE
PV 27
4.9.1. PV M
ODULE
S
ELECTION
27
4.9.2. PV M
ODULE
W
IRING
28
5. OPERATION 31
5.1. D
ISPLAY
31
5.2. S
WITCHING
ON/OFF 32
5.3. H
OME
P
AGE
32
5.4. S
TATUS
P
AGE
33
5.5. S
YSTEM
F
LOW
P
AGE
34
5.6. S
ETUP
P
AGE
35
5.7. S
ET
T
IME
(C
LOCK
) 36
5.8. S
ET
C
OMPANY
N
AME
/ B
EEPER
/ A
UTO DIM
36
5.9. F
ACTORY
R
ESET AND
L
OCK
C
ODE
37
5.10. B
ATTERY
S
ETUP
P
AGE
39
5.11. G
ENERATOR AND
B
ATTERY
P
AGE
40
5.12. B
ATTERY
D
ISCHARGE
P
AGE
42

5.13. S
ETTING
U
P A
L
ITHIUM
B
ATTERY
44
5.14. P
ROGRAM
C
HARGE
/ D
ISCHARGE
T
IMES
P
AGE
47
5.15. G
RID
S
UPPLY
V
OLTAGE AND
F
REQUENCY
– G
RID
S
UPPLY
P
AGE
50
5.15.1. R
EACTIVE POWER SETTING
(QV) 50
5.15.2. A
CTIVE POWER SETTING
(VW): 51
5.15.3. V
OLT
V
ARIABLE
M
ODE
(V
OLT
-
VAR
- VV) 51
5.16. A
DVANCED
S
ETTINGS FOR
P
ARALLELING
I
NVERTERS
54
5.17. S
OLAR
P
OWER
G
ENERATED
56
5.18. G
RID
P
OWER
57
5.19. A
DVANCED
S
ETTINGS FOR
W
IND
T
URBINE
57
5.20. A
DVANCED
S
ETTINGS FOR
A
UXILIARY
L
OAD
59
5.21. A
DVANCED
S
ETTINGS FOR
P
EAK
P
OWER
S
HAVING
60
5.22. F
AULT
C
ODES
61
6. COMMISSIONING 65
6.1. S
TARTUP
/ S
HUTDOWN
P
ROCEDURE
65
6.2. I
NFORMATION FOR
C
OMMISSIONING THE
I
NVERTER
66
6.3. GDFI F
AULT
67
7. MAINTENANCE 67
APPENDIX A 67
APPENDIX B 68
APPENDIX C 68
APPENDIX D 68
APPENDIX E 68

Page | 5
1. SAFETY
1.1. General Safety Information

This device should only be used in accordance o instructions within this manual and
in compliance with local, regional and national laws and regulations. Only allow this
device to be installed, operated, maintained, repaired by other persons who have also
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) suffering from a physical or
mental impairment that would affect 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.
1.2. Symbols
This symbol indicates information that if ignored, could result in personal
injury or even death due to incorrect handling.
This symbol indicates information that if ignored, could result in personal
injury or physical damage due to incorrect handling.
Indicates information that is considered important, but not hazard-related.
WARNING
CAUTION
NOTICE
SAFETY

Page | 6
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 qualified 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 centre.

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 electrical 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 off since the system can still have residual energy, so electric shock may occur.
Therefore, after turning off 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 electronic-waste disposal. In case of further questions, please consult
your supplier. In some cases, the supplier can take care of proper disposal.
HIGH LIFE RISK DUE TO FIRE OR ELECTROCUTION.
The Sunsynk Single-Phase Hybrid Inverter can only be installed by a qualified
licensed electrical contractor. This is not a DIY product.
WARNING

Page | 7
2. PRODUCT INTRODUCTION
The Sunsynk Single-Phase Hybrid Inverter is a highly efficient power management tool
that allows the user to hit those ‘parity’ targets by managing power-flow from multiple
sources such as solar, mains power (grid) and generators, and then effectively storing and
releasing power as and when utilities require.
2.1. System Overview
INTERACTIVE

Easy and simple to understand display

Supporting Wi-Fi or GSM monitoring

Visual power flow screen

Smart settable 3-stage MPPT charging for optimized battery performance

Auxiliary load function

Parallel / multi invert function grid-tied and off-grid
COMPATIBLE

Compatible with main electrical grid voltages or power generators

Compatible with wind turbines

220V single phase, pure sinewave inverter

Self-consumption and feed-in to the grid

Auto restart while AC is recovering

Auto earth bond feature (Via a relay)
1. PV isolator
2. Power ON/OFF
3. Battery input connectors
4. I/O Ports
5. MPPT 1 and MPPT 2 inputs
6. Battery cable compression gland
7. Inverter LED indicators
8. LCD display
9. Function buttons
10. RS485 port
11. CAN bus port
12. Generator / Aux IN/OUT
13. On-grid inverter
14. Load off-grid inverter
15. Ground connection
16. Data logger
PRODUCT INTRODUCTION

Page | 8
CONFIGURABLE

Fully programmable controller

Programmable supply priority for battery or grid

Programmable multiple operation modes: on-grid/off-grid & UPS

Configurable battery charging - current/voltage based on applications by LCD setting

Configurable 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 overflow to grid
APPLICATIONS

Marine (vessel power management)

Power shedding (home/office/factory)

UPS (fuel-saving systems)

Remote locations with solar and wind generators

Building sites

Military locations

Telecommunication

Page | 9
3. TECHNICAL SPECIFICATIONS
 SUNSYNK-3.6K-SG01/03LP1
Model SUNSYNK-3.6K-SG01/03LP1
Battery Input Data
Battery Type Lead-acid or Lithium-ion
Battery Voltage Range 40~60V
Max. Charging Current 90A
Max. Discharging Current 90A
Charging Curve 3 Stages/Equalisation
External Temperature Sensor Optional
Charging Strategy for Li-Ion Battery Self-Adaptation to BMS
PV String Input Data
Max. DC Input Power 4680W
PV Input Voltage 370V (100V~500V)
MPPT Range 125~425V
Full Load DC Voltage Range 240~425V
Start-up Voltage 150V
PV Input Current 11A
No. of MPPT Trackers 2
No. of Strings Per MPPT Tracker 1+1
AC Output Data
Rated AC Output and UPS Power 3600W
Max. AC Power 3960W
Peak Power (off-grid) 2 times of rated power, 10 S
AC Output Rated Current 15.7A
Max AC Output Current 18A
Max Continuous AC Passthrough 35A
Power Factor 0.8 leading to 0.8 lagging
Output Frequency and Voltage 50/60Hz; 220/230/240Vac (single phase)
Grid Type Single Phase
Current Harmonic Distortion THD<3% (Linear load<1.5%)
Efficiency
Max. Efficiency 97.60%
MPPT Efficiency 96.50%
Euro Efficiency 99.90%
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
Output Over Voltage Protection Integrated
Certifications and Standards
Grid Regulation
VDE 0126, AS4777, NRS2017, G98, G99, IEC61683, IEC62116,
IEC61727,
RD1699:2011, XP C15-712-3:2019-05
Safety Regulation IEC62109-1, IEC62109-2
EMC EN61000-6-1, EN61000-6-3
General Data
TECHNICAL SPECIFICATIONS

Page | 10
Operating Temperature Range -25~60°C, >45°C Derating
Cooling Natural Cooling
Noise <30dB
Communication with BMS RS485; CAN
Weight 20.5kg
Size (Length x Width x Height) 580 x 330 x 208 mm
Protection Degree IP65
Warranty 5 years
 SUNSYNK-3.6K-SG02LP1
Model SUNSYNK-3.6K-SG02LP1
Battery Input Data
Battery Type Lead-acid or Lithium-ion
Battery Voltage Range (V) 40~60V
Max. Charging Current (A) 90A
Max. Discharging Current (A) 90A
Charging Curve 3 Stages/Equalisation
External Temperature Sensor Optional
Charging Strategy for Li-Ion Battery Self-Adaptation to BMS
PV String Input Data
Max. DC Input Power (W) 7000W
Voc Max. (V) 500V
MPPT Range (V) 125~425V
Full Load DC Voltage Range (V) 240~425V
Start-up Voltage (V) 150V
PV Input Current (A) 11A+11A
No. of MPPT Trackers 2
No. of Strings Per MPPT Tracker 1+1
AC Output Data
Rated AC Output and UPS Power (W) 3600W
Max. AC Power (W) 3960W
Peak Power (off-grid) 2 times of rated power, 10 S
AC Output Rated Current (A) 15.7A
Max AC Output Current (A) 18A
Max Continuous AC Passthrough (A) 35A
Power Factor 0.8 leading to 0.8 lagging
Output Frequency and Voltage 50/60Hz; 220/230/240Vac (single phase)
Grid Type Single Phase
Current Harmonic Distortion THD<3% (Linear load<1.5%)
Efficiency
Max. Efficiency 97.60%
MPPT Efficiency 96.50%
Euro Efficiency 99.90%
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
Output Over Voltage Protection Integrated
Certifications and Standards
Grid Regulation VDE 0126, AS4777, NRS2017, G98, G99, IEC61683, IEC62116,
IEC61727,

Page | 11
RD1699:2011, XP C15-712-3:2019-05
Safety Regulation IEC62109-1, IEC62109-2
EMC EN61000-6-1, EN61000-6-3
General Data
Operating Temperature Range (℃) -25~60°C, >45°C Derating
Cooling Natural Cooling
Noise (dB) <30
Communication with BMS RS485; CAN
Weight (kg) 20.5
Size (Length x Width x Height) 580 x 330 x 208 mm
Protection Degree IP65
Installation Style Wall-mounted
 SUNSYNK-5K-SG01/03LP1
Model SUNSYNK-5.5K-SG01/03LP1
Battery Input Data
Battery Type Lead-acid or Lithium-ion
Battery Voltage Range 40~60V
Max. Charging Current 120A
Max. Discharging Current 120A
Charging Curve 3 Stages/Equalisation
External Temperature Sensor Optional
Charging Strategy for Li-Ion Battery Self-Adaptation to BMS
PV String Input Data
Max. DC Input Power 6500W
PV Input Voltage 370V (100V~500V)
MPPT Range 125~425V
Full Load DC Voltage Range 240~425V
Start-up Voltage 150V
PV Input Current 11A+11A
No. of MPPT Trackers 2
No. of Strings Per MPPT Tracker 1+1
AC Output Data
Rated AC Output and UPS Power 5000W
Max. AC Power 5500W
Peak Power (off-grid) 2 times of rated power, 10 S
AC Output Rated Current 21.7A
Max AC Output Current 25A
Max Continuous AC Passthrough 35A
Power Factor 0.8 leading to 0.8 lagging
Output Frequency and Voltage 50/60Hz; 220/230/240Vac (single phase)
Grid Type Single Phase
Current Harmonic Distortion THD<3% (Linear load<1.5%)
Efficiency
Max. Efficiency 97.60%
MPPT Efficiency 96.50%
Euro Efficiency 99.90%
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

Page | 12
Output Shorted Protection Integrated
Output Over Voltage Protection Integrated
Certifications and Standards
Grid Regulation
VDE 0126, AS4777, NRS2017, G98, G99, IEC61683, IEC62116,
IEC61727,
RD1699:2011, XP C15-712-3:2019-05
Safety Regulation IEC62109-1, IEC62109-2
EMC EN61000-6-1, EN61000-6-3
General Data
Operating Temperature Range -25~60°C, >45°C Derating
Cooling Fan
Noise <30dB
Communication with BMS RS485; CAN
Weight 20.5kg
Size (Length x Width x Height) 580 x 330 x 208 mm
Protection Degree IP65
Warranty 5 years
 SUNSYNK-5K-SG02LP1
Model SUNSYNK-5.5K-SG02LP1
Battery Input Data
Battery Type Lead-acid or Lithium-ion
Battery Voltage Range 40~60V
Max. Charging Current 120A
Max. Discharging Current 120A
Charging Curve 3 Stages/Equalisation
External Temperature Sensor Optional
Charging Strategy for Li-Ion Battery Self-Adaptation to BMS
PV String Input Data
Max. DC Input Power 6500W
PV Input Voltage 370V (100V~500V)
MPPT Range 125~425V
Full Load DC Voltage Range 240~425V
Start-up Voltage 150V
PV Input Current 11A+11A
No. of MPPT Trackers 2
No. of Strings Per MPPT Tracker 1+1
AC Output Data
Rated AC Output and UPS Power 5000W
Max. AC Power 5500W
Peak Power (off-grid) 2 times of rated power, 10 S
AC Output Rated Current 20.8A
Max AC Output Current 22.0039A
Max Continuous AC Passthrough 35A
Power Factor 0.8 leading to 0.8 lagging
Output Frequency and Voltage 50/60Hz; 220/230/240Vac (single phase)
Grid Type Single Phase
Current Harmonic Distortion THD<3% (Linear load<1.5%)
Efficiency
Max. Efficiency 97.60%
MPPT Efficiency 97.00%
Euro Efficiency 99.90%
Protection
PV Input Lightning Protection Integrated
Anti-islanding Protection Integrated

Page | 13
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
Output Over Voltage Protection Integrated
Certifications and Standards
Grid Regulation
VDE 0126, AS4777, NRS2017, G98, G99, IEC61683, IEC62116,
IEC61727,
RD1699:2011, XP C15-712-3:2019-05
Safety Regulation IEC62109-1, IEC62109-2
EMC EN61000-6-1, EN61000-6-3
General Data
Operating Temperature Range -25~60°C, >45°C Derating
Cooling Fan
Noise <30dB
Communication with BMS RS485; CAN
Weight 20.5kg
Size (Length x Width x Height) 580 x 330 x 208 mm
Protection Degree IP65
Warranty 5 years
 SUNSYNK-8K-SG01LP1 and SUNSYNK-8K-SG02LP1
Model SUNSYNK-8K-SG01LP1 / SUNSYNK-8K-SG02LP1
Battery Input Data
Battery Type Lead-acid or Lithium-ion
Battery Voltage Range 40~60V
Max. Charging Current 190A
Max. Discharging Current 190A
Charging Curve 3 Stages/Equalisation
External Temperature Sensor Optional
Charging Strategy for Li-Ion Battery Self-Adaptation to BMS
PV String Input Data
Max. DC Input Power 10400W
PV Input Voltage 370V (100V~500V)
MPPT Range 125~425V
Full Load DC Voltage Range 240~425V
Start-up Voltage 150V
PV Input Current 22A+22A
No. of MPPT Trackers 2
No. of Strings Per MPPT Tracker 2+2
AC Output Data
Rated AC Output and UPS Power 8000W
Max. AC Power 8800W
Peak Power (off-grid) 2 times of rated power, 10 S
AC Output Rated Current 33.4A/35A
Max AC Output Current 36.7A/38.5A
Max Continuous AC Passthrough 50A
Output Frequency and Voltage 50/60Hz; 120/240Vac (split phase), 208Vac (2/3), 230Vac (single
phase)
Grid Type Split phase, 2/3 phase, single phase
Current Harmonic Distortion THD<3% (Linear load<1.5%)
Efficiency
Max. Efficiency 97.60%
MPPT Efficiency 96.50%

Page | 14
Euro Efficiency 99.90%
Protection
PV Arc Fault Detection Integrated (Except European Type)
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
Output Over Voltage Protection Integrated
Certifications and Standards
Grid Regulation UL1741, IEEE1547, RULE21, VDE0126, AS4777, NRS2017, G98,
G99, IEC61683, IEC62116, IEC61727
Safety Regulation IEC62109-1, IEC62109-2
EMC EN61000-6-1, EN61000-6-3, FCC 15 Class B
General Data
Operating Temperature Range -25~60°C, >45°C Derating
Cooling Fan
Noise <30db
Communication with BMS RS485; CAN
Weight 32kg
Size (Length x Width x Height) 670 x 420 x 233 mm
Protection Degree IP65
Installation Style Wall-mounted
3.1. System Diagram

Page | 15
4. INSTALLATION
4.1. Selecting the Mounting Area
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 filled with mineral oil or containing splashed oil or steam such as found in
kitchens. It will deteriorate plastic parts of the unit, causing those parts to fail or allow
water/damp to penetrate the unit.

Areas that generate substances that adversely affect 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-fibre
or flammable dust, or volatile inflammable 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 fire risk.
INSTALLATION

Page | 16

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 are above 95%

Areas where the air circulation is too low.
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.

If children under 10 years old may approach the unit, take preventive measures so that
they cannot reach and touch the unit.

Install the indoor unit on the wall where the height from the floors is higher than
1600mm.

For proper heat dissipation, allow a clearance of approximately 500mm to the side,
500mm above nd below the unit, and 1000mm to the front of the unit.
4.2. Mounting the Inverter

Page | 17

Select installation locations that adequate to support the weight of the converter.

Install this inverter at eye-level to allow the LCD to be read anytime.

An appropriate ambient temperature is between -25 ~ 60°C to ensure optimal operation.

Be sure to keep other objects and surfaces as shown in the figure to guarantee sufficient
heat dissipation and have enough space to remove wires.

For proper air circulation to dissipate heat, allow a clearance of approximately 50cm to
the side.
4.3. Battery Connection

Battery connection of the 3.6kW/5.5kW model
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.
CAUTION

Page | 18

Battery connection of the 8kW model
For safe operation and compliance, an individual DC overcurrent protector or
disconnection device is required for the connection of the battery and the inverter. Users
are recommended to utilise a suitable fuse and DC isolator (see next page). In some
applications, switching devices may not be required, but overcurrent protectors must be
used. Please refer to the typical amperage in the table below for the required fuse or circuit
breaker size.
A minimum battery cable size of 35mm diameter and 50mm diameter is
recommended for the 5.5 kW and 8.8kW inverter, respectively.
All wiring/connecting must be performed by qualified personnel.
Before making the final 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.
CAUTION

Page | 19

Recommended DC Surge Protector
:
4.4. 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 diameter of cable in accordance with the battery manufacture
specifications along with recommended safety devices.
2) Connect a communication cable from the batteries to the inverter in compliance
with the battery manufacturer guidelines. The cables have two ends, one to be
specifically connected to the BMS and another to be connected to the inverter, do
not connect them incorrectly.

Page | 20
3) Connect the power and communication cables to the inverter correctly.
4.5. Battery Temperature Connection
When connecting more than one battery, ensure they are set in the configuration of
‘master and slave’.
NOTICE