CPS ESSR-05KH1 User manual

User Manual for CPS ESSR-05/10/15/20KH1
Energy Storage Battery Unit
Shanghai Chint Power Systems Co., Ltd.
Version 1.2 August 2023

Table of Con tent s
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Table of Contents
0Introduction .................................................................................4
1Safety Instructions ......................................................................5
1.1  Explanation of safety symbols in the manual..............................5 
1.2  Interpretation of product markings ..............................................6 
1.3  Precautions .................................................................................7 
2Product Introduction ...................................................................9
2.1  Introduction to residential energy storage battery unit ................9 
2.2  Model marking...........................................................................10 
2.3  Instruction of energy storage capacity ......................................10 
2.4  Dimension and appearance ......................................................12 
2.5  LED display instruction..............................................................18 
2.6  Product protection function .......................................................19 
3Installation .................................................................................20
3.1  Inspection before installation.....................................................20 
3.2  Installation tools ........................................................................22 
3.3  Installation torques ....................................................................23 
3.4  Installation requirements ...........................................................23 
Environment requirements....................................................23
Installation method.................................................................24
Installation space....................................................................25
3.5  Installation methods ..................................................................26 
Floor installation......................................................................26
Wall-bracket Installation........................................................30
4Electrical Connection................................................................32
4.1  Cable specification ....................................................................32 
4.2  Tools and torques......................................................................32 
4.3  External wiring ports..................................................................32 
4.4  Wiring instructions .....................................................................33 
Grounding cable connection.................................................34
Communication line and Power line connection................34
5Trial Operation...........................................................................37
5.1  Installation check.......................................................................37 
5.2  Inspection items of cable...........................................................37 
5.3  Startup process .........................................................................37 
General startup process........................................................38
Black start process.................................................................38
5.4  Shutdown process.....................................................................38 

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6Storage and Recharging ...........................................................39
6.1  Battery storage requirements....................................................39 
6.2  Recharging cycle and requirements .........................................40 
6.3  Recharging operation................................................................41 
6.4  Battery power-on and commissioning steps .............................42 
7Maintenance and Replacement ................................................43
7.1  Maintenance precautions ..........................................................44 
7.2  Maintenance items and cycle....................................................45 
7.3  Fault List....................................................................................46 
Troubleshooting of LED indicator.........................................46
List of faults.............................................................................46
8Technical Data ...........................................................................49
9Quality Assurance.....................................................................53
9.1  Immunity from liabilities.............................................................53 
9.2  Quality terms .............................................................................54 

Introduction
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0 Introduction
This manual contains important information about product
installation and safe operation. Please read it carefully before use.
Thank you for choosing CPS ESSR H1 Series residential energy storage battery
unit (hereinafter referred to as " battery unit " in this manual) produced by Chint
Power Systems Co., Ltd. (hereinafter referred to as "Chint Power"). With innovative
design and perfect quality control, the energy storage battery produced by Chint
Power has high reliability.
This manual mainly introduces the product characteristics, performance
indicators, appearance and interfaces, operating instructions, installation and
maintenance of the CPS ESSR H1 Series CPS ESSR-05/10/15/20KH1 residential
energy storage battery unit.
This manual is applicable to the following personnel:
Professional technicians for installation, operation and maintenance of the
product;
Users of the product.
Please keep this manual properly for reference at any time. In case of any
problems during installation or operation, please refer to this manual first, and the
instructions in it can help you solve common problems. If the problem persists, you
can contact the local dealer or representative.
Any reproduction, disclosure or copy in whole or in part is forbidden without prior
written authorization. Chint Power reserves the right to modify and update this manual
without prior written authorization. CHINT doesn’t accept any responsibilities
whatsoever for potential errors or possible lack of information in this document.
Users can get the latest manual from our sales channel or our official website:
www.chintpower.com.

Safety Instructions
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1 Safety Instructions
Read this manual carefully before installing and operating the energy storage
battery. If the equipment is not properly installed and used in accordance with the
contents of this manual, resulting in damage to the equipment, Chint Power has the
right to refuse warranty claims.
Please read this manual carefully before installation. If any damage to the
equipment occurs as a result of installation and operation not in accordance with the
instructions in this manual, we reserve the right to deny warranty!
1.1 Explanation of safety symbols in the manual
DANGER!
A high-level potential hazard that, if not avoided, will result in death or
serious injury.
WARNING!
A moderate-level potential hazard that, if not avoided, may result in death
or serious injury.
CAUTION!
A low-level potential hazard that, if not avoided, may result in moderate
or mild injury.
NOTICE!
A
potential risk that, if not avoided, may result in the equipment not
functioning properly or causing property damage.
IMPORTANT!
Additional information in the manual that highlights and supplements the
content and may also provide tips or tricks to optimize the use of the
product, which helps solve problems or save time.

Safety Instructions
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1.2 Interpretation of product markings
DANGER! Electric Shock!
There is a high voltage inside the machine body, so the instructions
in the User Manual must be followed for operation of this product.
Keep away from fire source!
There is a lithium-ion battery in the equipment, which need to be
stored or used away from fire sources.
DANGER! Explosion!
The battery itself is at risk of explosion and therefore shall be used
as required.
Read the Manual!
Refer to the user manual for further details.
WARNING!
Serious injury or equipment damage may result if the equipment is
not operated in accordance with the warnings.
Protective Earth!
This marking is located at the protective earth (PE) terminal and
shall be firmly earthed to ensure operator safety.
Waste Sorting!
The battery box shall not be disposed of with domestic waste at the
end of its service life.
Recycling
The battery box shall be disposed of in an appropriate
environmentally-safe recycling facility.
Certification Marking
The product complies with the provisions of the CE Directive.
Safety Gear
Wear safety gears when handling the battery box.

Safety Instructions
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1.3 Precautions
WARNING!
When installing, operating and maintaining the equipment, read this manual
first and follow all safety precautions marked on the equipment and in the
manual.
DANGER!
There is voltage in the equipment, and non-standard operation may
cause electric shock or fire, resulting in death, serious injury or serious
property loss.
It is strictly prohibited to install, use and operate outdoor equipment and
cables in severe weather such as thunder and lightning, rain, snow and
strong wind of force 6.
It is prohibited to not carry out installation, wiring, maintenance,
replacement and other operations with electricity.
It is prohibited to clean the equipment with water.
Before touching any conductor surface or terminal, the voltage at the
contact point shall be measured to confirm that there is no risk of electric
shock.
Paint scratches during equipment transportation and installation shall be
repaired in time. It is strictly prohibited to expose the scratched parts to
the outdoor environment for a long time.
The battery terminal components shall not be affected during handling.
Lifting and handling via the battery terminal bolts are not allowed.
Under no circumstances shall the structure and installation sequence of
the equipment be changed without the permission of the manufacturer.
In case of fire, evacuate the building or equipment area and press the
fire alarm bell, or call the fire alarm number. Under no circumstances
shall re-entry into a burning building be permitted.

Safety Instructions
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NOTICE!
During transportation, transfer, installation, wiring and maintenance, the
requirements of laws, regulations and relevant standards of the country
and region where the equipment is located must be met.
The materials prepared by the user and the tools required during the
operation must meet the requirements of laws, regulations and relevant
standards of the country and region where they are located.
The grid connection can only be carried out after obtaining the
permission of the power department of the country and region where it is
located.
The composition and working principle of the entire PV grid-connected
power generation system and the relevant standards of the
country/region where the project is located shall be fully familiarized.
CAUTION!
Check the wall bracket again before hanging the machine to ensure that the
wall bracket is firmly fixed on the supporting surface.

Product Introduction
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2 Product Introduction
2.1
Introduction to residential energy storage battery unit
CPS ESSR H1 series energy storage battery unit is suitable for residential energy
storage. The energy storage battery includes a power control module and a battery
extension module, which can store and discharge electric energy according to the
requirements of inverter management system. The input and output ports of the CPS
ESSR H1 series energy storage battery unit are with DC power.
Battery charging: The power control module connects with the energy storage
terminals (BAT+, BAT-) of the inverter to charge the battery under the control of the
inverter and store the excess energy generated by the PV system in the battery.
Battery discharging: When the PV energy is insufficient to supply power to the
load, the energy storage battery unit shall help to control the battery to supply power
to the load, and output the energy stored in the energy storage battery unit to the load
through the inverter.
Fig 2-1: Typical Application of Energy Storage Battery Unit
NOTICE
The max. voltage of PV side is 1000V (overvoltage category: Ⅱ);
The max. voltage of AC side is 400V (overvoltage category: Ⅲ).

Product Introduction
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2.2 Model marking
The model of CPS ESSR H1 series energy storage battery unit is CPS ESSR-05
(10/15/20) KH1. The following is an example of the meaning of CPS ESSR-05KH1.
Figure 2-1: Model of Energy Storage Battery Unit
No. Name Meaning
1 Company name CPS: Chint Power Systems
2 Product type Residential energy storage system
3 Energy level 05K: energy level of 5.12 kWh
4 Desi
g
n code H1: product number of hi
g
h volta
g
es
(
HV
)
series
Table 2-1 Instruction of Model Meaning
2.3
Instruction of energy storage capacity
The energy storage battery unit supports capacity extension. Up to 3 battery
stacks can be connected in parallel, each of which can support up to 4 battery
extension modules.
Figure 2-2 Instruction of Energy Storage Capacity