Weco HeSU 4k4 PRO User manual

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I n s t a l l a t i o n M a n u a l
HeSU 4k4 PRO Battery Module

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HeSU 4k4 PRO Battery Module
In case of product upgrades to the 4k4 PRO Battery Module or for other reasons, this document will be adjusted
accordingly. Unless otherwise agreed, this document is intended to be used only as a guide, and all statements,
information and advice in the documentation shall not constitute any express or implied action in contradiction to local
regulations or standards.
For more information, please contact us.
The official information and the latest datasheet are available on www.wecobatteries.com
It is essential that the battery unit is equipped with the latest firmware version available.
WeCo will release new firmware to improve the functionalities and battery capabilities from time to time
The latest version of the firmware is always available free of charge, the battery firmware can be updated by your local
installer.
You can also write an email to [e-mail] to understand the upgrade procedure.
ATTENTION
The 4k4 PRO Battery Module is designed to be used indoors.
The STANDARD IP20 degree of protection does not allow installation in outdoor environments even if sheltered
from the weather.
The INDOOR definition means literally the internal environment, the room must be closed to unauthorized persons,
ventilated and dry.

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TABLE OF CONTENTS
1 PREFACE 4
2 INFORMATION IN THIS MANUAL 4
2.1 About this Manual 4
2.2 Use Range 4
2.3 Additional Information 4
2.4 Symbols Used 4
3 SAFETY 5
3.1 Warnings and Notification 5
3.2 Safety Guidelines 5
4 PRODUCT OVERVIEW 6
4.1 Product Introduction 6
4.2 Identifying the Product Components 6
4.3 LED Bar Definitions 8
5 SYSTEM INSTALLATION 9
5.1 Installation Notice 9
5.2 Package Information and Parts List 9
5.3.1 Installation Procedure (Wall Mount) 12
5.3.2 Installation Procedure (Stack Mount) 14
5.4 Communication and Control Panel 18
5.5 DIP Switch Settings 19
5.6 Parallel Battery Wiring Convention 21
6 BATTERY ACTIVATION AND SHUTDOWN 24
6.1 Panel Button and LEDs Explanation 24
6.2 Stand Alone Battery Front Panel Control 24
6.2.1 Start Battery 24
6.2.2 Shut Down Battery 24
6.2.3 Low battery Forced Charge Function 24
6.3 Parallel Battery Configuration 25
6.3.1 Activation of Parallel Batteries 25
6.3.2 Shut Down of Parallel Batteries 25
7 TROUBLESHOOTING 26
8 SOFTWARE GUIDE 28
9 PRODUCT COMPATIBILITY LIST (See Also 8.5) 32
10 SINGLE CLUSTER CONFIGURATION (100A) 33
11 SINGLE CLUSTER CONFIGURATION (300A) 34
12 MULTI CLUSTER HUB CONTROLLER (We-HUB) 35
13 MULTI CLUSTER CURRENT LIMITATIONS 36
14 MULTI CLUSTER CONNECTION 38
15 INVERTER SETTINGS WITHOUT BMS-CAN CONNECTION (GENERAL) 39
ANNEX-A OUTBACK INVERTER CONNECTION WITHOUT BMS-CAN 42

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1 PREFACE
Thank you for choosing our product. We will provide you with a good quality product as well as reliable after service.
To protect against harm to both personnel and the product, please read this manual carefully.
This manual provides detailed information on operation, maintenance and troubleshooting of the product as well as health and
safety advice.
Special Announcement:
The manufacturer holds the right of final explanation of any content in this manual.
2 INFORMATION IN THIS MANUAL
2.1 About this Manual
This manual relates only to the HeSU 4K4 PRO Low Voltage Universal Stackable Model. This manual is intended to be used only by
qualified installers who must read carefully and always refer to the manual for guidance on correct operation and maintenance of the
product.
2.2 Use Range
This installation guidance applies only to the HeSU 4K4 PRO Low Voltage Universal Stackable Model.
2.3 Additional Information
Specification of the product can be changed without any notice to customers.
2.4 Symbols Used
Symbol meanings：
CAUTION represents hazardous situations which can cause light injuries if not avoided.
NOTICE represents the situations which can cause damage to property if not avoided.
INFORMATION provides tips that are valuable for optimum installation and operation of the product.

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3 SAFETY
3.1 Warnings and Notification
Installation environment requirements: -HESU- SERIES is designed for household purposes. For installation, it must be installed in a
location complying with IP20. (IP 55 or IP65 are available on request). Installations in locations that do not comply with IP20 may
cause failure and/or damage to the product and subsequently the product warranty will be considered void.
3.2 Safety Guidelines
At all times be certain to avoid a short-circuit between the anode terminal and a cathode terminal of the battery. All electrical
connections on the -HESU- SERIES must be made only by qualified professional personnel.
When installed and operated in accordance with this manual, the HeSU Series battery will perform as a safe and reliable manner in
accordance with the battery operating specifications.
Subjecting the battery to an unsuitable operating environment or to damage, misuse or abuse may result in health and safety risks
such as overheating or electrolyte smoke potential. All personnel must comply with the safety precautions and observe all warnings
as detailed in this document. If any of the safety precautions or procedures detailed in this manual is not fully understood by the
reader, the reader must not perform any operation on the battery, until they have contacted WECO the customer service officer for
clarification and confirmation of understanding of the correct procedure.
The safety guidelines included in this document may not include or consider all the regulations in your area of installation/operation.
When installing and operating this product the installer must review and consider applicable local laws and regulations in accordance
with the industry standards of the product.
Installation personnel shall not wear watches and other metal items when performing installations as a precaution to avoid short
circuits and personal injuries.
The weight of an individual HeSU 4K4 PRO battery is around 50kg, please use original packaging and perform all safety precautions
if the battery is to be relocated to another location, to avoid damage to the product and personnel injury.

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4 PRODUCT OVERVIEW
4.1 Product Introduction
The HeSU Series batteries can be used as an on-grid or off-grid energy storage system. It is recommended not to use this product for
any purpose other than the intended purpose as described in this document.
Use of this product other than as described in this document will nullify the product guarantee. The substitution or installation of any
components of this battery will nullify the product guarantee.
The use of any components contained within or connected to this battery other than the products sold as part of this product or
recommended by the manufacturer will nullify the product guarantee.
Connecting more than five individual HeSU 4K4 PRO battery units in parallel will nullify the product guarantee.
4.2 Identifying the Product Components

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The nameplate label attached to the product describes the product parameters, including model type and serial number. Installers
must always check that the specifications displayed on the nameplate of the battery module relates to the installation manual that is
being referred to for guidance.
Only qualified personnel, with a comprehensive understanding of this manual are permitted to install this product.

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4.3 LED Bar definitions
During startup: LED1-LED5: GREEN for 5 Seconds
After startup: LED1-LED5 changes to BLUE color and the SOC of the battery will be displayed.
During the normal status the LED bar always displays SOC value.
During a Fault or Error the LED bar displays the SOC value for 5 seconds, and then displays the battery fault status for 5 seconds,
alternately
SOC 90-100%
SOC 55-89%
SOC 32-54%
SOC 6-31%
SOC 5% * (Yellow when SOC is below 4,9%)
SOC STAUS
ERRORS

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5 SYSTEM INSTALLATION
The battery is packed in a carton box. The total weight exceeds 55Kg and as such it is mandatory that the opening, unpacking and
preliminary checking of the battery is conducted by carried out by a minimum of two people.
5.1 Installation Notice
a) Before installation, check the battery open circuit voltage.
b) Battery installation location should be at least 20m away from sources of heat, sparks or other source of potential danger.
c) Battery connecting cables should be as short as possible to prevent excessive voltage drops.
d) Batteries with different capacity, different P/N or from different manufactures must never be connected together.
e) Before connecting the battery, the battery positive and negative poles need to be carefully checked to ensure correct installation.
f) The battery should be installed on a horizontal plane.
5.2 Package Information and Parts List
The battery is packed in a carton together with standard accessories. When unpacking the battery, be sure to check that the battery
and accessories are free from damage and that the correct quantities of each component are included within the carton.
The following list of components can be used as a check list when unpacking the individual battery and battery kits.
5.2.1 Parts list * Included Accessories
Number
Name
Quantity
Description
Image
1
Battery
1
Lithium battery module
2
Wall mounting plate
1
Support Plate
3
Wall screws
4
Wall Plate Fixing
Screws+Plug
4
CAN cable RJ45
( RJ 45/RJ9 ZCS/SOFAR)
1
1.5m

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RJ45 parallel cable
1
1.5m
6
Power cable
1
Length 2.5m
25mm diameter
7
User manual
1
https://wecobatteries.com/download-area/
5.2.2 Stack Kit (To be purchased separately)
Number
Name
Quantity
Description
Image
1
Stack Feet with rubber
2
Left Side + 2 Screws
2
Stack Feet with rubber
2
Right Side+ 2 Screws
3
Front Cover
1
Front Cover + 4 Screws
4
Parallel Bus Bar
1+1
1 Red Bus Bar
1 Black Bus Bar