ATESS HPS User Manual - V3
ATESS HPS User Manual - V3
ATESS HPS User Manual - V3
Shenzhen Growatt Power Technology Co.,Ltd Hybrid energy system User Manual
1st Floor of Building 3 at Sector B and 3rd Floor of Building 9,
Henglong Industrial Park, No.4 Industrial Zone, Shuitian
Community, Shiyan Street, Baoan District, Shenzhen
T: +86 755 2998 8492
F: +86 755 2998 5623
E: info@atesspower.com
W: www.atessp.com
044.ZT00007-00
Contents
2 Safety instructions
2.1 Installation 5 Pilot operation
5.1 Relevant requirements
2.2 Operator
5.2 Inspection
2.3 Inspection and storage 5.3 Power on steps
2.4 Transportation 5.4 Pilot operation completion
2.5 Repair and maintenance 5.5 Power off steps
2.6 Inverter EMC and noise level
2.7 Important note
6 GUI instruction
6.1 LCD display screen introduction
6.2 LCD operation
6.3 LCD display information schedule
3 Product Description
This chapter describes the contents of this manual, target reader, and safety Qualification
symbols, can help users to have a better understanding of the manual. 1) Only professional electricians or professionally qualified personnel can
transport or install this product.
2)The operator should be fully familiar with the structure and working principle
of the entire Energy Storage system;
1.1. Contents
3)The operator should be fully familiar with this manual;
4)The operator should be fully familiar with the local standards of the project.
This manual applies to ATESS HPS50 hybrid energysystem, the manual
contains:
1.3. How to use this Manual
safety instruction
Read this manual before installation of the ATESS HPS50. Store this manual
Attention that needs to be paid when operating and maintaining ATESS HPS50. where accessible at all times.
Installation
1.4. Symbols explanation
Inverter installation conditions, tools, and the inverter mechanical and electrical In order to ensure the personal and property safety of the user during installation,
installation, the communication connection and inspection. or optimally efficient use of this product, symbols are used highlight the
information. The following symbols may be used in this manual, please read
Commissioning carefully, in order to make better use of this manual.
Daily maintenance of the inverter, the replacement of some spare parts and waste
disposal instruction.
1 2
Safety instructions 2
Caution,risk of electric shock
WARNING Inverter installation and service personnel must be trained and familiar with the
general safety requirement when working on electrical equipment. Installation and
When battery bank connecting point are exposed, there will be DC voltage in
service personnel should also be familiar with the local laws and regulations and
the equipment DC side; and when output breaker is on, there is a potential
safety requirements.
risk of electric shock.
> Read this manual carefully before operation. The equipment will not be under
warranty if failing to operate according to this manual.
> Operation on the inverter must be for qualified electrical technician only.
Caution, risk of fire hazard
WARNING Suitable for mounting on concrete or other non-combustible > When inverter operating, don’t touch any electrical parts except for the touch-
surface only. screen.
> All electrical operation must comply with local electrical operation standards.
> Warranty service for the inverter does not contain module maintenance.
Protective conductor terminal > Permission from the local utility company is required before installing the Energy
Storage system and only professional personnel are qualified for the operation.
The inverter has to be firmly grounded to ensure the safety of
PE TERMINAL personnel.
2.1. Installation
Risk of electric shock, Energy storage timed discharge.
Proper installation requires following all the instructions in the user manual
Electrical shock danger exists in the capacitor; the cover shall involving transportation, mounting, wiring and commissioning. ATESS does not
WARNING
be moved at least 5 minutes later after all powers are cover warranty for the inverter damage due to failing to use it properly.
The protection level of the inverter is IP20, which is designed for indoor
installation. Please refer to chapter 4 for installation instruction.
3 4
2.2. Operator 2.5 Repair and maintenance
Inverter installation and service personnel must be trained and familiar with the
general safety requirement when working on electrical equipment. Installation and Repair and maintenance can only be carried out after disconnecting the DC and
service personnel should also be familiar with the local laws and regulations and AC for at least 5 minutes.
safety requirements.
Only professional technical personnel are qualified for the operation.
Disconnecting switches
2.3. Inspection and storage
Disconnect DC switch and AC switch, and make sure the inverter will not be
The inverter should be carefully checked before signing the document from the connected accidentally. Ensure the inverter is totally disconnected with no voltage
transportation company. Check the received items against delivery note, and if by testing with a multi-meter. Although the DC and AC switch has been
there is any defect or damage, immediately notify the transportation company. If disconnected, there is still voltage in some components, for example capacitors.
necessary, you can seek help from ATESS Customer Service department. Hence, the repair or maintenance operation can only be proceeded at least 5
minutes after the disconnection.
Don't change the parameters of the inverter without authorization from the local
Transportation should follow the transportation methods described in the user
utility and ATESS Energy Technology Co., Ltd. Otherwise, it might lead to injury or
manual. The inverter's weight and center of gravity should be taken into account
equipment damage and the warranty of the inverter will be voided.
during transportation. The center of gravity is marked on the box.
5 6
Anti-interference property from internal components.
Product description 3
Anti-interference property from outside.
3.1 Energy Storage system
Electromagnetic emission impact on the environment
ATESS HPS50 bidirectional battery inverter is designed for energy storage
system, it converts DC current generated by battery bank into AC current and feed
Inverter may generate some noise and electromagnetic radiation during it into the load/grid, also it can take power from solar inverter or grid to charge
operation. According to EMC emission and noise level, inverter should be used in
industrial environments. Hence, all personnel should not stay long near the
Structure of a typical energy storage system is shown as below
Information Battery
power cable
Item 1: Static electricity can cause damage to the inverter Load CAN communication
When operating the inverter, operator must comply with anti-static protection 3.2 Circuit diagram of the inverter
norms!
Item 2: Restriction ATESS HPS50 bidirectional battery inverter converts DC current generated by
battery into AC current. Then the AC current is filtered into sine wave electricity
The inverter cannot be directly used to connect the life support equipment and fed into the grid through a isolating transformer. It can also converts grid
and medical equipment! power to DC to charge battery. The circuit diagram is as below:
Item 3: Precautions
Make sure installation tools or other unnecessary items are not left inside the PV input
Maintenance can only be carried out after the inverter totally discharged. AC input
7 8
3.3 The layout of the main components Indicator
There are two LED indicators on the inverter which is used to display the current
3.3.1 External components status of the inverter.
LED Description
POWER The indicator lights when power supply to the inverter is normal.
Emergency STOP
3 touch Screen LCD Operation information display, receive control The emergency stop button immediately disconnects the inverter from both grid
command and parameters setting and battery, which ensure the safety of the inverter. By pressing the emergency
4 Off-on knob only control the grid-side switch, and does not stop button, the device will be locked in the "off" position. Only release the
control the DC-side switch emergency stop button by rotating it clockwise and closing AC, DC breaker, can
5 Emergency STOP Shut down the inverter when pressed down
the inverter resume working normally.
Off-on knob
When the DC power system fails, the inverter will immediately disconnect the AC
3.4.3On-grid economic priority mode contactor and enters into the fault mode, so as to ensure the safety of the system.
(1)At this mode, the inverter can prevent the current from flowing back by default, Inverter continuously monitors fault status and will not enter charge and discharge
PV will only need to meet battery charge and load power. mode until the fault is eliminated.
(2)Valley price: working logic is the same to the backup priority mode’s. PV and
grid supply priority to battery, the remaining to load.
(3)Fair price: 3.4.8 Permanent fault mode
A. Battery can neither discharge nor be charged by grid.
B.PV power supply priority to load, the remaining to battery when PV power is When the DC power system is in serious failure, the inverter will immediately
higher than load power. disconnect the AC contactor and enters into the Permanent fault mode, so as to
C. When PV power is lower than load power, PV and grid supply to load. ensure the safety of the system. For example: inverter module failure etc. please
(4)Peak price: contact your local dealer or ATESS directly when inverter enters permanent fault
A. Grid will not charge battery. mode, repairmen on site is not allowed without authorization of ATESS.
B. When PV power is higher than load power, PV supply to load , the remaining to
battery.
C. When PV power is lower than load power, there are two conditions:
a. When battery voltage is normal, PV and battery supply to load.
b. When the battery is under voltage, battery will not discharge, PV and grid supply When the ambient temperature is too high, it is normal the
to load only, not to battery. inverter reduces the output power. However, if this frequently
CAUTION happens, check the cooling surface of the inverter or place the
inverter in better ventilation conditions place. If the inverter fan is
dirty, please clean the fan, if there is problem with the inverter
3.4.4 Micro-grid backup priority mode (generator mode) internal electrical, please seek help from professional services.
11 12
3.5 Battery setting 3.8 Dimension
3.6 Protection
Anti-islanding
Lightning protection
Inverter built-in lightning protection module has the DC / AC side lightning over-
voltage protection to avoid inverter from being damaged.
More protection features, please refer to the section 6.3.
3.7 Storage
If there is a long time before installation or operation, the ATESS HPS50 should be
stored appropriately.
> As some noise will be produced in operation, this equipment shall be installed far
from residential quarters; [Wiring specification]
> The installation ground shall be even enough, and firm enough to support the Cables in the inverter can be classified into either power cables or data cables.
weight of inverter;
In cabling, the power cable shall be kept far away from, and the cable shall be kept
> The installation position shall be convenient for maintenance; in right angle at cross. The cable shall be as short as possible, and an appropriate
distance shall be kept to the power cable.
> Ambient temperature range: –25°C~55°C;
The power cable and data access shall be placed in different cable trenches
> Appropriate space shall be reserved for the machine to ensure ventilation and respectively to avoid lengthy routing between the power cable and other cables,
cooling. so as to reduce the electromagnetic interruption caused by sudden change of the
output voltage. The distance among the power cable and data access shall be
We suggest inverter is installed in the distribution room. The floor, wall clearance,
more than 0.2m. When the cables are crossed, the cross angle shall be 90
Ventilation equipment and precaution should be designed by professional
degrees, while the distance can be reduced appropriately.
personnel and satisfy the following requirements.
[Ventilation requirement]
[Foundation requirement]
In operation, inverter will produce a lot of heat. When ambient temperature is too
Inverter is required to install on even ground with fire-retardant material as the high, the electrical property of the equipment may be affected, the equipment may
surface or channel steel support structure, and sag or tilt ground is prohibited. The even be damaged. Therefore, the heat release shall be fully considered in
foundation shall be solid, safe and reliable. The foundation shall be capable of designing the control room to ensure operation of the equipment in high efficiency.
bearing the load of the inverter. Its load bearing ability shall be concerned
throughout the installation place selection.
[Ventilation environment]
[Clearance space] To satisfy the ventilation requirement of inverter, its installation environment shall
meet the following conditions:
During installation of the inverter, appropriate space shall be left to the wall or
※ Inverter shall be prevented from being installed in the place of poor ventilation
other equipment, in order to satisfy the requirements on narrowest maintenance
condition and insufficient air flow;
channel, emergency access and ventilation.
※ The air inlet shall have enough air supplementation.
15 16
[Ventilation equipment ] 4.3 Mechanical installation
To ensure safe and reliable operation of the equipment, the ambient temperature 4.3.1 Transportation of packaged whole machine
must be within the permission range –25°C~ 55°C, therefore, appropriate
ventilation devices must be equipped with to release the heat generated by the
【NOTE】
equipment. We suggest the ventilation rate is more than 3665m³/h.
· There must be ventilation equipment inside the distribution room to ensure This inverter is transported as an integrated unit, and the user can hoist it from the
release of the waste heat generated by the inverter from the equipment, and allow bottom with a forklift, or move it with a hoisting crane or crane.
for maximum ambient environment temperature. This can be realized from
installation of exhaust devices; Note 1: The inverter is integrated and cannot be dissembled either in
transportation or installation. Any fault attributed to modification unauthorized by
·Another fan can be added at the air duct outlet to exhaust the air out and ensure the ATESS is beyond the quality assurance.
balanced pressure;
Note 2: In movement, tilt, violent shake or sudden force upon the inverter shall be
·The direction of the air outlet shall be selected according to the local actual wind prevented, such as sudden down of lifting.
direction;
Note 3: Please read carefully the labeled parameters to select an appropriate
· Pay attention to the dustproof measures and waterproof design at the air inlet transportation means and storage place.
and outlet;
· If more air ducts are required, its dimensions shall be designed by the We suggest the user make use of forklift to move the inverter if possible.
professionals according to the air output amount.
· Wire stripper
· Heat dryer
Lifting logo
· Megger and multimeter
17 18
Sign Indication
Figure 4-3-2-1
Inverters whose packages are not demolished can be moved with forklift, hoisting [Movement and installation of bear machine]
crane or crane. In moving, attention shall be paid to the weight painted on the
package to ensure enough load capacity of the devices. As the gravity center of The inverter with demolished package can be moved with forklift, hoisting crane,
the equipment locates at the lower place symmetrical in front and back and left slide rail or crane.
and right, the support point or hoisting point shall be arranged reasonably in
transportation. If the package demolished place is far from the final installation place, it can be
transported with forklift containing wood pallet. It is shown in Figure.
The forklift transportation is the standard one. The gravity center of the cabinet in
transportation should locate between two forks of the forklift. The big-size inverter
may block driver's sight, and it shall be treated with cooperation of the aid
personnel.
Procedure 1: Demolish the wood side and roof of the packaged cabinet
Procedure 2: Demolish the out-set package material on the machine
Procedure 3: Demolish the fastening screws between the machine and the pallet Figure 4-3-2-2
19 20
Figure 4-4-2 DC side wiring
Figure 4-4-3 AC side wiring
When connecting the AC grid, cut off the circuit breaker at the
AC side to ensure that the AC wire connecting to terminals has 4.4.4 Earthing
CAUTION! no electricity.
Inverter must be earthing well for safety; Please make sure of the connection
between PE in power distribution cabinet and PE copper in the inverter good; and
make sure the earthing cable more than 16mm2 and the earthing resistance must
satisfy the demand of IEC standard.
Connect AC grid:
1) Cut off the circuit breaker at AC side, to ensure that the AC wire connecting to
terminals has no electricity. Confirm it with a multimeter. All wiring into the channel at the bottom of the inverter to be all the wiring is
completed, the connection port must be sealed with dust cotton, to prevent dust
2)Connect the port A marked at "AC-input" of HPS50 with "L1" of the grid .
from entering the inside of the inverter.
3)Connect the port B marked at "AC-input" of HPS50 with "L2" of the grid
4)Connect the port C marked at "AC-input" of HPS50 with "L3" of the grid .
5)Connect the port A marked at "AC-output" of HPS50 with "L1" of the load .
6)Connect the port B marked at "AC-output" of HPS50 with "L2" of the load .
7)Connect the port C marked at "AC-output" of HPS50 with "L3" of the load . 4.5 Communication
8) Connect "N" of the load and "N" of the grid with the "N" port of HPS50
Ensure that the wiring phase sequence at AC side is in consistent with the phase The inverter of ATESS PCS series has various communication methods. When the
sequence at grid side. user needs to monitor the operating status of DC power generation system, we
9) Please confirm that the wiring is fastened. provide single-machine and multi-machine control programs, and diversified
communication interfaces for customer's selection.
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4.4 Electrical installation 3) Cable requirements
1) Battery
4.4.2 DC side wiring
The positive and negative highest voltage of the battery shall not exceed 1000V,
otherwise, the equipment will be in over-voltage protection state, and cannot work
Caution, risk of danger
normally. Recommended battery capacity is 50kWh
The positive and negative of the battery shall not be connected
CAUTION! in reverse. A multimeter shall be used to determine the polarity
first, and then connect into the corresponding input ends of the
Model ATESS HPS50
Recommended battery capacity 50kW.h
Battery Voltage Limit 1000V
Specific procedures are as follows:
1) Cut off the distribution circuit breaker at the DC side, and ensure that no
2) Three-phase grid
voltage on the wire at DC side.
Inverter will continuously inspect whether the grid satisfy the grid connected 2) Determine the positive and negative with a multimeter.
conditions. The following is the grid limit for satisfaction of local Grid connected 3) Connect the positive of the battery to the "Battery-input +"of The HPS50
Conditions (requirements in different countries may vary, the value can be setup 4) Connect the negative of the battery to the "Battery-input +"of The HPS50
and please refer to local grid connected regulations for details), and the grid is
5) Connect the positive of the panels to the "PV-input+" of HPS50
three-phase grid. Meanwhile, it shall be permitted by local power supply
6) Connect the negative of the panels to the "PV-input-" of HPS50
department before install Grid-connected inverted power.
7) Please be sure that all wirings are fastened.
21 22
4.5.1 RS485 communication 4.6 Installation inspection
The inverter, through RS485 tandem, is connected with the PC for communication Before the inverter is put into operation, it shall be inspected for installation. Two
through RS485/RS232 adaptor. Inside the PC, a multi-machine monitoring working men or more shall inspect to ensure correct installation of all installation
software ShineNet independently developed by the ATESS is monitoring in real according to the following table.
time the operating status of all inverters, as shown in Figure 4-5-1. The RS485
wire should be less than 1000m.
There is an Ethernet port on the right side of LCD. Please connect the LCD and Correct connection of DC input anode and cathode, and tightening torque
meeting requirements.
Router with Network cable; and then router can make data interaction with serve,
and users can communicate with the inverter by internet. Correct connection of communication lines, and maintaining a certain
distance to other cables.
Other Inspections
25 26
Pilot operation 5 5.2 Inspection
5.1 Relevant requirements Procedure 1: Inspect inverter's installation and wiring conditions based on the
Installation Inspection List in Table 4-6;
Before pilot operation, the installation conditions of the equipment shall be
examined thoroughly, in particular whether voltages at DC and AC ends are Procedure 2: Ensure the AC&DC circuit breakers are cut off;
consistent with inverter's requirements, and whether the polarity etc. are correct. Procedure 3: Ensure the emergency button is available and woks normally.
Inspect if the system connection meets requirements in relevant standards or
codes and if the system is grounded well.
5.2.2 Grid voltage inspection
Inspect whether the three phases of the inverter is correctively connected with
Before pilot operation, all switches at AC side and DC side the three phase sequence of the grid.
shall ensure to be cut off. Inspect whether the line voltage and frequency are within the prescribed range,
and record the value.
CAUTION! If possible, measure the phase THD (Total Harmonic Distortion), and inspect
the curve. If distortion is serious, the inverter may fail to operate.
27 28
5.2.3 DC side voltage inspection 5.4 Pilot operation completion
The DC side consists of two parts,from the confluence box or the DC distribution The following procedures shall be carried out after the inverter is normally in
cabinet to the HPS50 and from the storage battery to the HPS50. operation.
Ensure that the direct current from the confluence box or DC distribution Procedure 1: Inspect whether abnormity exists in the inverter, such as excessive
cabinet is connected to the PV terminal of HPS50 and is in sequence. noise, excessive heat, abnormal smell or smoke.
Measuring the open circuit voltage of pv-input cannot exceed the allowable Procedure 2: Measure whether inverter voltage, current and THD are stable.
maximum voltage.
Procedure 3: Operate LCD control panel and inspect whether it displays normally
Ensure that the direct current from the battery is connected to the battery input and accurately.
terminal of HPS50 and the polarity is correct.
By now, the pilot operation of inverter is fully completed, and we can enter the
Ensure that the battery voltage is within the limits set by the HPS50,and the daily operational maintenance.
battery ratio of the HPS50 is correct.
The HPS50 itself can not switch seamlessly between on and off
grid. That is to say,Cutting into the grid when inverter working
in off-grid mode was forbidden. If intend to use the capability of
CAUTION! switch seamlessly between on-grid and off-grid,you need
additional equipment. If there is a demand please contact us.
29 30
6 GUI instruction
6.1 LCD display screen introduction
User can view the information of the inverter operation on the LCD touch screen,
as well as setting the operating parameters. In order to facilitate the operation, a
menu is provided below.
Operation
History Info System Setup On/Off Home
Data
Operation
General fault Language
Data_1
Operation
Data_2 Time setting HPS30
Charge Power
Chart Factory Setting
Disharge Power
Chart Maintenance
Charge Month
Energy Chart
Generation
Disharge Month
Generation
6.2.2 ON/OFF interface
Charge Year
Generation Clicking “ON/OFF” button in any interface will enter into this interface.
Disharge Year
Generation
There are “ON” and“OFF” button which is used to turn on and turn off the inverter.
Charge 20Years
Generation
Disharge
20Years
Generation
After powering on the LCD,it will enter the home page. Then you can begin to read
the information and set the parameters.
Inverter communication state, station number and system time is displayed at the
top of each page of the LCD.
Each page has five commonly used function keys: "run data" “historical
information” "system settings" “Home” at the below of the page. The five
commonly used keys corresponding sub-menu are under the button, and it will be
marked green after selected.
The operating status of the inverter output power, safety standard, model, input Submenu: language settings, time settings, inverter information, maintenance.
and output voltage, current information can be viewed in the page. Pressing the Pressing the left button can enter into the corresponding submenu interface. The
following key can switch to other pages.
default one is language setting interface.
31 32
Device Information: This page shows the manufacturer, inverter serial number,
hardware and software version information, and the date of manufacturing.
Clicking “historical information” can enter into the sub-menu of the "historical
information".
Time settings: system time setting (if the date and time displayed on LCD is not The submenu includes: history of failure.
inconsistent with the actual date and time, they can be modified here)
History of failure: all the common history of failure details can be found by flipping
the page up and down.
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6.3 LCD display information schedule
No. information
1 DC_Inverse_Failure
2 IGBT_Failure
3 EEPROM_Write_Failure
4 EEPROM_Read_Failure
5 AC_MainContactor_Failure
6 AC_SlaveContactor_Failure
7 RISO_Failure
6.2.5 Operation data 8 DC_VoltHigh_Fault
9 DC_CurrHigh_Fault
Clicking the “Operation data” in any interface will enter into the submenu of
10 DC_OCP_Fault
“operation data”.
11 INT_DC_OverVolt_Fault
The sub-menu includes: real-time data, the power curve, and energy yield figure. 12 INT_DC_OverCurr_Fault
Pressing the left button can enter into the corresponding sub menu interface. The
13 IGBT_Module_Fault
default interface is the real-time data interface.
14 L_OCP_Fault
Insert USB Disk on the back of the LCD display, and the real time operation data
15 AC_NoUtility_Fault
will be stored in the USB Disk in every minute. Inverter will create a “CSV” format
file every month in the USB disk for data storage. 16 AC_GridPhaseSeque_Fault
17 AC_PLL_Fault
Real-time data: current DC power generation parameters and real-time data
18 AC_Volt_Unbalance_Fault
including the grid voltage, the grid frequency, the grid current, DC input voltage,
DC input current, the internal temperature of the chassis as well as the total power 19 AC_Curr_Unbalance_Fault
generation time (updated in real time). 20 AC_WU_OverVolt_Fault
21 AC_WU_UnderVolt_Fault
22 AC_VW_OverVolt_Fault
23 AC_VW_UnderVolt_Fault
24 AC_UV_OverVolt_Fault
25 AC_UV_UnderVolt_Fault
26 AC_OverFreq_Fault
27 AC_UnderFreq_Fault
28 AC_GridCurr_DcHigh_Fault
29 AC_L_Curr_DcHigh_Fault
30 AC_OverCurr_Fault
31 AC_L_Curr_High_Fault
32 AC_Overload_Fault
32 AC_Overload_Fault
33 LVRT_Fault
35 36
No. information
Routine maintenance 7
34 Module_OverTemp_Fault
35 Inductor_OverTemp_Fault
36 Transformer_OverTemp_Fault
37 LowTemp_Fault 7.1 Regular maintenance
38 EPO_Stop
39 KeyEmergencyStop In order to ensure the normal operation of the inverter, regular maintenance work
40 LcdEmergencyStop is required.
Recommended routine maintenance cycle and work, as shown in Table 7-1.
41 AC_MainContactor_Fault
42 AC_SlaveContactor_Fault Table 7-1 Routine maintenance work
43 AC_SPD_Fault
Maintenance item Cycle
44 Inductor_Rly_Fault
45 Transformer_Rly_Fault Clean or replace the dust screen Half a year
37 38
8 Appendix
8.2 ATESS Factory warranty
warranty for the ATESS inverter products Possession of this certificate validates a
8.1 Specification standard factory warranty from the date of purchase.
Overvoltage category Category I for AC output category II —Insufficient ventilation of the product;
for DC input —Transport damage;
Mains connection Permanent connection
39 40
—Breaking of the original manufacturers seal;
—Power failure surges, lighting, flood, fire, exposure to incorrect use, negligence,
accident, force majeure, explosion, terrorist act, vandalism or damage caused by
incorrect installation, modification or extreme weather conditions or other
circumstances not reasonably attributable to ATESS.
The warranty shall also cease to apply if the product cannot be correctly identified
as the product of ATESS. Warranty claims will not be honored if the type of serial
number on the inverters have been altered, removed or rendered illegible.
Liability
The liability of ATESS in respect of any defects in its DC inverters shall be limited
to compliance with the obligations as stated in these terms and conditions of
warranty. Maximum liability shall be limited to the sale price of the product. ATESS
shall accept no liability for loss of profit, resultant of indirect damage, any loss of
electrical power and / or compensation of energy suppliers within the express
meaning of that term.
The warranty rights as meant herein are not transferable or assignable to any third
party excepting the named warranty holder.
8.3 Contact
If you have technical problems concerning our products, contact your installer or
ATESS. During inquiring, please provide below information:
·Inverter type
·Modules information
·Communication method
·Serial number of Inverters
·Error code of Inverters
·Display of inverters
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