SunSynk ECCO SUN-3K-SG04LP1-24-EU User manual

ECCO
HYBRID INVERTER
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.7 (12/09/22)
SUN-3K-SG04LP1-24-EU / SUN-3K-SG04LP1-EU
SUN-3.6K-SG04LP1-EU / SUN-5K-SG04LP1-EU
SUN-6K-SG04LP1-EU

ECCO SG04LP1 | 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 Size 9
2.2. 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. System Diagram 15
4.4. Mounting the Inverter 15
4.5. Function Port Denition 17
4.6. Battery Connection 18
4.6.1. Recommended DC Battery Protection 19
4.7. Connecting a Lithium Battery 20
4.8. Battery Temperature Sensor Connection 20
4.9. Connecting the AC 22
4.9.1. Recommended AC Surge Protector 23
4.10. Installing the CT Coil 24
4.11. Earth Connection (MANDATORY) 25
4.12. Meter Connection 26
4.12.1. System Connection for the CHNT Meter 26
4.13. Wiring System for Inverter 27
4.14. PV Connection 28
4.14.1. PV Module Selection 28
4.14.2. PV Module Wiring 28
4.15. PV Protection 29
4.16. Single-Phase Parallel Connection Diagram 30
4.17. Three-Phase Parallel Inverter 31

ECCO SG04LP1 | User Manual3
5. OPERATION 32
5.1. Display 32
5.2. Switching ON/OFF 32
5.3. Home Page 33
5.4. Status Page 33
5.5. System Flow Page 34
5.6. Setup Page 35
5.7. Set Time (Clock) 36
5.8. Set Company Name / Beeper / Auto dim 36
5.9. Factory Reset and Lock Code 37
5.10. Battery Setup Page 38
5.11. Generator & Battery Page 39
5.12. Battery Discharge Page 41
5.13. Setting Up a Lithium Battery 43
5.14. Program Charge & Discharge Times 48
5.15. Grid Supply Page 50
5.16. Connecting the DRM’s 51
5.17. Advanced Settings for Paralleling Inverters 52
5.18. Solar Power Generated 55
5.19. Grid Power 55
5.20. Advanced Settings for Wind Turbines 56
5.21. Advanced Settings for Auxiliary Load 57
5.22. Advanced Settings for Peak Shaving 58
5.23. Fault Codes 59
6. OPERATING MODES 62
6.1. Mode I: Basic 62
6.2. Mode II: With Generator 62
6.3. Mode III: With Smart Load 63
6.4. Mode IV: AC Couple 63
7. COMMISSIONING 65
7.1. Start-Up / Shutdown Procedure 65
7.2. Information for Commissioning the Inverter 66
7.3. GDFI Fault 67
8. MAINTENANCE 67

ECCO SG04LP1 | User Manual4
APPENDIX A 67
APPENDIX B 68
APPENDIX C 68
APPENDIX D 68
APPENDIX E 69

ECCO SG04LP1 | User Manual5
1. SAFETY
This device should only be used in accordance with the instructions within this manual and in
compliance with local, regional, and national laws and regulations. Only allow this device to be installed,
operated, maintained, and repaired by other person(s) 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.