Crown Micro Global CM12KTL PV Grid Connected Inverter User Manual

Crown Micro Global CM12KTL PV Grid Connected Inverter

Introduction

• For readers
  This manual is applicable for technicians of inverter installation, operation, and maintenance. The readers shall be familiar with electrical knowledge.

• About this manual
  Please read this manual carefully before using products. This manual shall be kept in a place that is convenient to use. An operator using this manual must be a qualified electrical engineer certified by the local electrical authority.

• Copyright
  These manual updates are subject to product upgrades, and there might be some unconformity between the manual description and the products, and users can acquire the latest version from us. The manual updates are not to be further notified.

Applicable Models
This manual provides the installation, operation, and maintenance of PV grid- connected inverters TP 12 KTL- TP 15KTL. The following models of the inverter are related:

• CM12KTL CM15KTL Revision

Important safety instruction

• Symbols in this manual
  To ensure personal and property safety in using the photovoltaic inverter and the high efficiency of the product, related safe operation notices are provided in the manual, and corresponding symbols are used to emphasize the importance. These important notices must be fully understood and followed. Symbols used in this manual are listed below to help you carefully read and use this manual.

• Danger
  It means a high potential danger that may cause serious personal injury or death directly if this warning is neglected.

• Warning
  It means a moderate potential danger that may cause serious personal injury or death directly if this war is neglected.

• Caution
  It means a light potential danger that may cause a light or moderate personal injury or serious property loss if this warning is neglected.

• Notice
  It means a potential risk that may cause the device to malfunction or property loss if this warning is neglected.

• Tip
  It means an additional notice emphasizing or complementing the content, or providing a tip for optimizing the product operation, and further helps you solve some problems or save some time. It means a helpful reference or notice.

• Symbols on the inverter
  The inverter is attached with some labels related to operation safety. Please don’t install the device before carefully reading through and fully understanding these labels.

Introduction

For readers
This manual is applicable for technicians of inverter installation, operation, and maintenance. The readers shall be familiar with electrical knowledge.

About this manual
Please read this manual carefully before using products. This manual shall be kept in a place that is convenient to use. An operator using this manual must be a qualified electrical engineer certified by the local electrical authority.

Copyright
These manual updates are subject to product upgrades, and there might be some unconformity between the manual description and the products, and users can acquire the latest version from us. The manual updates are not to be further notified.

Applicable Models
This manual provides the installation, operation and maintenance of PV grid- connected inverters TP 12 KTL- TP 15KTL. The following models of the inverter are related:

• CM12KTL
• CM15KTL

Revision

Important safety instruction

Symbols in this manual
To ensure personal and property safety in using the photovoltaic inverter and the high efficiency of the product, related safe operation notices are provided in the manual, and corresponding symbols are used for emphasizing the importance. These important notices must be fully understood and followed. Symbols used in this manual are listed below to help you carefully read and use this manual.

• Danger
  It means a high potential danger that may cause a serious personal injury or death directly if this warning is neglected.

• Warning
  It means a moderate potential danger that may cause serious personal injury or death directly if this warring is neglected.

• Caution
  It means a lightly potential danger that may cause a light or moderate personal injury or serious property loss if this warning is neglected.

• Notice
  It means a potential risk that may cause device malfunction or property loss if this warning is neglected.

• Tip

  • It means an additional notice emphasizing or complementing the content, or providing a tip for optimizing the product operation, and further helps you solve some problems or save some time.
  • It means a helpful reference or notice.

Symbols on the inverter
The inverter is attached with some labels related to operation safety. Please don’t install the device before carefully reading through and fully understanding these labels.

Safety instruction

• Tip Please contact us if you have any problems.

Series inverters are designed, manufactured and tested as per international safety standards. However, as an electrical and electric product, it must be installed, operated and maintained strictly according to related safety notices.
If you have any problems, please contact the nearest service center or authorized dealer. Please do NOT install or repair the product by anyone who is not qualified by local authority.
We are not responsible for any damage or loss caused by misuse or misunderstanding the information in this manual.

Warning
Misuse or misoperation may harm:

• The personal safety of the operator or a third person.
• The property safety of the inverter or any other property.

Before installation

Warning
The inverter cannot be connected to the grid unless approved by the electrical authority, and it must be installed according to the local standard and related standards for an electrical enterprise.

Notice
Please check if there is any damage on the package or the product before installing. The inverter is electrically radioactive, Please choose a suitable place for installation.

During installation

Danger
Keep the PV array covered and the DC circuit breaker OFF. High voltage will be generated by PV array exposed under sunshine. All the cables must be connected firmly.

Notice
The inverter must be installed by a qualified electrical engineer certified by the local authority, and the installation manual must be read through before installation. It must be installed according to the local standard and related standard for an electrical enterprise.

Operation

Danger

• High voltage is a hazard, make sure keep the device away from children.
• Any touch with the device or terminal may cause electric shock or fire. Please follow all the safety instructions.
• A damaged device or system fault can cause electric shock. Make sure that you have checked the package and the device before installation to avoid unnecessary damage or loss.

Caution
Be aware of the hot surface while the device is running

Repair

Danger
Completely switch off the connection between the inverter and the grid, DC side connection. Wait for 10 minutes until the internal elements are fully discharged.

Notice
Do NOT restart the inverter before all the hazards have been removed. Please contact your local dealer and always have a licensed trader do the repairing.

EMC
EMC(ElectroMagnetic Compatibility) means the resistance of a device or system against generating any ElectroMagnetic interference to the environment without influencing the normal operation in the ElectroMagnetic environment.

• Immunity to the own noise; Immunity to the internal electrical noise.
• Immunity to the external noise; Immunity to the external electromagnetic noise.
• Noise radiation level: influence of ElectroMagnetic radiation to the environment.

Notice

• The ElectroMagnetic radiation of the inverter is harmful for health.
• Please never stay within 20cm from a running inverter for long.

Product Description

Product applicability
CM series inverter, the DC voltage generated in the PV array can be transformed into AC voltage and supplied to the grid. The PV power generating system consists of PV arrays, inverters, meters and a public grid.

The research, development, and manufacture of the CM series are integrated with the most updated techniques and public confirmed safety regulations. However, improper operation or misuse may still cause injury or loss. Instruction and information provided in this manual must be followed all the time.

Circuit structure
Fig.2-2 shows the internal functional diagram of the CM series inverter. After the PV array input enters the voltage boosting circuit via the filter circuit,the input DC voltage is boosted and stabilized to BUS value for the full-bride inverter circuit, and in this process, the MPP tracer in the inverter will ensure the DC energy generated in the photovoltaic array can be used by the inverter circuit at maximum and the DC current will be conveyed into the grid. The joint of the input and output MC can effectively reduce the interference between the inverter and the outside.CPU1 and CPU2 control the inverter operation and monitor the operation state, and in any abnormal working condition, it will protect the inverter and external device and personal safety according to the reserve program thus extremely improve the stability and reliability of the system.

Product introduction

Electrical connecting part

Tab. 2-1: Description for the electrical connecting part of the inverter

Instruction
A DC switch is recommended in consideration of safety, in some countries, it is imperative for the connection of PV array and inverter; users can select a proper type for TP series inverters accordingly.”

Dimensions and weight

Notice
Waterproof I/O terminals are located at the bottom of the inverter.Be cautious when handling and installing to prevent any damage.

Tab.2-2: Inverter weight

LCD Displaying panel
The inverter is totally computerized and all the status are displayed on the LCD screen, the screen is also sound-sensitive, it will turn into sleep mode in 2 minutes with no operation. You can wake up the screen just by slightly click on the plastic shell around the LCD displaying panel.

Installation

Safety instruction

Danger
The DC voltage at the PV array and the AC voltage at the grid, side are both higher than the safe voltage. It is forbidden to touch any electrified terminal directly. Make sure the DC side is not electrified before installation and maintenance.

The inverter must be installed, operated or maintained as per the following standard and instruction, and it can not be connected to the grid for power generating unless approved by the local power supply authority, and all operation must be performed by a qualified electrical engineer.

• All electrical installation must be performed according to the local standard of electrical installation.
• No internal part except the wiring terminal can be touched during installation.
• A running inverter has a high voltage, so no internal operation can be made within 10 min at least after the AC and DC power supply of the inverter is cut off and it is made sure by measuring the DC voltage with a multimeter that the capacity is fully discharged.
• Take care of the hot surface of the inverter. For example, the heat radiator of the power semiconductor will be kept in a high temperature after the inverter is shut down.
• The inverter is delivered without any user’s self-maintenance assembly, so please contact the local authorized installation and maintenance technist if you need to maintain your inverter.

Installation procedures

See the following instruction for details.

Preparation before installation

Unpacking and checking
The product is carefully tested and checked before transportation, however it is still possible to be damaged during transportation, please check the device again before installation. If any damage, please contact the transportation agency or directly contact Wuxi Xingi Power New Energy Technology Co., Ltd.

Tab. 3-1: Package list

Preparation for tools
The following tools will be used for installing the inverter:

Selection for an Installation Position

Danger
Some parts (e.g.: heat radiator) of the inverter run with a high temperature, so it is not suitable for installing near inflammables or explosives.

Notice

• When selecting an installation position, please avoid the influence of noise and electromagnetic radiation on the environment.
• The inverter can not be installed near any place of high external electromagnetic radiation(e.g.: a TV tower, communication signal tower, or HV cables).
• The inverter performance will be degraded if the environmental temperature is 45 C or above. Make sure the inverter is installed in a well ventilated place so that the power generation can be maximized.

Detailed requirement for installation position:

• The inverter with a protection level of IP65 can be installed in the open air.
• The inverter can not be installed under direction sunshine, or the internal temperature of the inverter will be excessively high and thus the inverter performance will be degraded for protecting the internal elements; or even the temperature protection will be activated by the excessively high temperature.
• The inverter shall be installed in a cool & dry place with temperature from -25 C- +60 C;The environmental relative humidity is not higher than 95% and without any condensation.
• The inverter LCD shall be leveled with eyes and with enough space in the front for inspection.
• To avoid of burning or electric shock, the inverter shall be installed beyond reach of children. The temperature of some parts (e.g. : the heat radiator) is high when the inverter is running.
• Make sure the installation position does not shake.
• The inverter shall be installed in a well ventilated place to ensure thenormal heat radiation.
• The installation place shall be firm enough to support the inverter weight.
• The inverter shall be installed on a vertical wall, or within 15° at most if backwards to the wall.
• Connecting terminal is located at the bottom.

Tab.3-2-1: Effective spacing dimensions

Inverter installation

Danger
Please check that the open circuit voltage, short circuit current and maximum power at STC of the PV array are within the capacity of the solar inverter. The full load MPPT voltage range is within the 450V-800V.

Installation Guide

1. Take out the back board and fix it to the wall; then peel the four logos on the back board and attach them to the wall through the hole. Thus the installation holes are marked.
2. Drill holes in the marked position as per the size of expansion screws.
3. Insert the expansion bolt kit into the hole, knock the kit into the hole and make them level with the wall surface.
4. Fix the back board to the wall using the tapping screws tightly.
5. Keep the inverter tilts slight upward, and attach it to the wall bracket slightly to the top of its final position, and then visually check if the inverter is correctly installed on the bayonet.
6. The installation is finished

Electrical connection
After the inverter is correctly installed on the wall or support, the next step is the electrical connection for the inverter. Electrical connection must be performed according to related safety standards.

• Danger A misoperation electrical connection may cause personal injury or death or damage the inverter irreversibly. Wiring operation must be performed by a qualified electrical engineer.
• Warning All electrical installation must be complying with local and national electrical standards.
• Warning The inverter cannot be connected to the grid unless approved by the local electrical authority and all electrical connections are completed by a qualified electrical engineer.
• Warning Please use cables of specification recommended by us, or the system safety may be deraded.

The electrical connection for an inverter covers electrical cable connection and communication cable connection.

Electric and electrical system structure
The electric and electrical connection for the whole solar energy power generation system is shown as below:

There are two independent MPP trackers in inverter, each MPP tracker has two pairs of DC input terminals. The connection type refers to Fig.3-11. Keep DCt: switch in an “OFF” state and make sure that:

Tab.3-3: suggested max power input

• Each string of solar panels in series should be of same type and specification.
• Open Circuit Voltage of each string should not exceed 1 000VDC
• The two string of same MPP tracker should have same number of solar panels.
• Take Model.TP20KTL as example, the panel power of each MPP tracker should not exceed 11 kw, the total power of inverter should not exceed 22kw.
• Recommended Voltage/Current for AC Breaker is 400V/60V.
• If the inverter is equipped with “AC Breaker including the RCD”, the parameter of the RCD refers to the following:

Tab.3-4: suggested RCD parameter

No load can be directly connected to the output side of the inverter.

Structure of the communication system
CM series inverters support two flexible communication modes: Standard Wifi communication and optional RS485 communication. The topological structure of RS485 communication is as below. (Wifi connection refers to Wifi Setup Guide)

TiP
If you have any question when reading the following information, please do no hesitate to contact us.

RS485 communication
The R$485 communication supports ModBus Protocol. Following is detailed connection steps.

1. Communication between a single device and a PC
   See the figure below for the connecting method. Connect 3/4 terminals of inverter to A/B terminals on RS485/USB switch, and then connect the other end of the switch to computer.

2. Communication between multi-device and a PC
   See the figure below for the connecting method. Connect RS485 terminals of inverters in parallel. Connect 3/4 terminals of the first inverter to A/B terminals on RS485/USB switch, and then connect the other end of the switch to computer. The maximum number of RS485 communication devices is 32 units .

• Tip
  The”Multi-device communication mode 2″with RS485 and WIFI is applicable for centralized installation where wiring is not convenient between the computer and devices.

• Tip
  RS485/USB switch module and WIFI wireless module are serial products orderable from Xingi Power RS485/USB switch module can be purchased by the user of own.

• Tip
  If RS485 communication mode is selected, it is recommended to use two-core dual-twisted shield cable. The recommended specification is RVVP2 * 1.0. The maximum transmission distance of RS485 communication mode is 1200m.

• Notice
  WIFI wireless communication is functioning within 400min an opening distance, but interference and barrier shall be put into consideration because the actual transmission distance is influenced by the installation field and external interference.

No load can be directly connected to the output side of the inverter.

Wiring terminals and cable specification

1. DC wiring terminals
   The DC side of inverter has 4 pairs of terminals in total.See the figure below :

2. AC terminals

3. Communication terminals

4. Cables of the following specification will be equipped by the user. Tab.3-5: Recommended cable specification

All of the above cables are copper wire

Steps for electrical connection

Danger

• Please cover the PV array by lightproof material or switch off the DC circuit breaker before electrical connection. A dangerous voltage will be generated by the PV array exposed in the shine.
• If the inverter has been electrified and tested before connection, wiring can not be performed unless the AC and DC power supplies are cut off for 1 Omin and a multimeter shows that the DC side is tatally discharged.

Caution
When designing the PV array, make sure the maximum open circuit voltage is not higher than 850V at each series of PV group. Otherwise the inverter will be damaged irreversibly.

Tip

• Different colors of cables shall be used for differentiating in assembling. For example: the positive pole is connected by a red cable and the negative by a blue cable.
• In order to balance each PV series, Cable shall be with the same sectional area.
• DC cable between the inverter and the assembly shall be the special PV cable. The voltage drop from the terminal box to the inverter is about 1-2%. It is recommended the inverter is installed on the assembly support for generation to reduce the cable cost and the DC loss.
• High performance and high quality PV array shall be used. The open circuit voltage in the serial array must be lower than the maximum DC input voltage in the PV grid-tied inverter, and the working voltage of the serial array must comply with the MPPT voltage of the serial array must comply with the MPPT voltage in the PV grid-tied inverter.

Notice

• Protect the LCD panel during wiring;
• Protect the LCD panel and other elements from scratch or damage by cables or tools.

Steps for DC connection

Steps for DC cable wiring

1. Using the striping tool to cut the PV cable, and makes the cooper wire reveal as 0.7cm.
2. Insert cable into DC”+” terminal
3. Process crimping.
4. Put terminal into connector”+”
5. Insert cable into DC”-” terminal
6. Process crimping
7. Put terminal into connector”-“

Steps for AC connection
Connect inverter with AC distribution box or public grid by AC output cables.

AC output connector contains three parts: plug, adapter and cable gland. See Fig.3-34 lnstructure of AC output connector

• Step 1 Remove the cable gland and the adapter from the AC output connector
• Step 2 Remove the insulation layer of the AC output cable of an appropriate length using a wire stripper.
  Notice
  The three -phase AC input power cables, neutral cable, and PGND cable must be properly connected.

1. Strip the outer jacket of AC output cable by 55 mm
2. Cut the core wires of the cables excluding the PGND cable by 2.5 mm  

That is, the core wire of the PGND cable should be 2.5 mm longer than that of other four cables. For the lnverter28KTL, the neutral cable does not connect to the AC output terminal . Align the neutral cable with the protective jacket and cut it off to facilitate the stripping of the other four core wires

3. Strip the insulation layer of each core wires by 12 mm![Crown-Micro-Global-CM12KTL-PV-Grid-Connected-Inverter-fig- \(35\)](https://manuals.plus/wp-content/uploads/2023/10/Crown-Micro-Global-CM12KTL-PV-Grid-Connected-Inverter-fig-35.png)  

Notice
The preceding figure shows only how to strip cables for the 10 KTL to 20 KTL

• Step 3 Insert AC output cable (L 1, L2, L3, N, and PE) into the cable gland and the adapter, as shown in Figure 3-36.
  Notice
  If the external cable diameter ranges from16mmto20mm, removeaseal ring from the cable gland before inserting the power cable into the cable gland and the adapter.

• Step 4 Loosen the screws inside the coupling nut holes using a flathead screwdriver, insert the core wires into corresponding holes, and tighten the screws, as shown in Figure 1-19 and Figure 1-20 Tighten the screws to a torque of 0.7 N.m.

  • C onnect L 1 to the hole numbered L 1.
  • Connect L2 to the hole numbered L2.
  • Connect L3 to the hole numbered 3.
  • Connect N to the hole numbered 4.
  • Connect PE to the hole marked .

• Step 5 Check that all core wires are properly connected, as shown in Figure 3 -38.

• Step 6 Secure the adapter to the coupling nut, as shown in Figure3 -38 Tighten the adapter to a torque of 12 N.m

• Step 7 Secure the cable gland to the adapter, as shown in Figure 3-39.
  Tighten the cable gland to a torque of 5 N.m (You need to use some tool to achieve this torque)

• Step 8 Connect the AC output connector to the bayonet coupling of the AC output wiring terminal on the Inverter and rotate it clockwise until you hear a “click” sound, as shown in Figure 3-40. Because no sufficient space is available on the right of the AC terminal, tighten the terminal using the left hand.

Notice
The AC output connector securely connects to the AC output wiring terminal after the bayonet coupling snaps into place.

DC/AC terminal connection:

1. Make sure that the DC/AC breaker is
2. Insert the DC+/- wiring terminal into corresponding DC+/- terminal.
3. Insert the AC wiring terminal into the AC terminal.
4. Switch on the AC breaker.
5. Turn the DC switch to the “ON” state.

Earthing requirement

Caution
The inverter is a device with no transformer, neither the positive nor the negative pole of the PV assembly DC side can be earthed, or the inverter will not work normally, or even be damaged irreversibly.

In TP series PV power generating system, all device shells, assembly supports and the GND terminal of the inverter must be safety and reliably earthed.

Trial operation

Check before operation

Warning:
Necessary safety check must be performed before the inverter is electrified for trial operation!

Check for reliability of mechanical installation
Check if the inverter is firmly installed and if all bolts are reliably tightened. For an inverter installed on a metal supporter, make sure each bolt is tightened and support has enough load bearing capacity.

Check for connecting cables
Check if all cables in the system are firmly connected without any missed or wrong connection, and especially check if all positive and negative poles are correct. If a DC switch is equipped on the inverter, the DC switch shall be turn to the “OFF” state.

Electrical check
Make sure the DC input voltage of the inverter is lower than 1 000V (with the temperature decrease of the PV array, the open circuit voltage will be increased, so a residual voltage at the low temperature must be put into consideration).
Make sure the grid parameters are complying with the inverters parameters.

Electrify the inverter
The inverter can be started up as per the following steps after all testing and checking steps are performed.

• Switch on the AC breaker.
• Switch on the DC breaker, and turn the DC switch to the “ON” state.

See Part 5 of this manual for “Human-machine interaction” after the inverter is started up. If enough power energy can be generated in the solar array, the inverter will be started up automatically, and LCD will display the normal status which means the inverter is successfully started up. If the inverter is not normally started up, please refer to Part 6 “Troubleshooting and maintenance”.

Human-machine interaction

LCD interface

Tab. 5-1: Introduction to symbols on the LCD panel

Inverter working mode
After the inverter is started up, the normal working state will be switched as per the chart below:

Standing-by mode
When the DC voltage is higher than 250V but lower than 320V, the inverter will enter the sleep mode. In this case, the inverter will keep monitoring the DC voltage , and will enter the ready mode once it reaches the working voltage 320V.

Ready mode
When the DC voltage is over 320V, the inverter enter into the ready mode. In this case, inverter start hardware self-checking,and after the self-checking is over, the inverter enter power generating mode.

Power generating mode
When the external condition satisfies the power generating condition, and the after the self-checking gets through, the inverter will enter into the power generating mode.

Protection mode
If any external fault such as AC side grid fault is detected by the inverter, the inverter will stop power generating and enter the protection mode, in this case the protection indicator on LCD panel will show and display the corresponding protection code. Troubleshooting can be performed by the user according to this code. The inverter will keep monitoring if the external fault is removed, and will keep in the protection mode unless the fault is removed. It will be reenter the grid-connect power generating mode one minute later after the fault is removed.

Fault mode

• If any internal fault is detected by the inverter, the inverter will stop power generating and enter the fault mode, in this case fault indicator on the LCD panel will show and display the corresponding fault code.
• Troubleshooting can be performed by the user according to this code. The inverter will keep monitoring if the internal fault is removed. It will be reenter the grid-connect power generating mode if the fault is removed.

Notice

• In the morning and evening, the light intensity is weak and changeful, thus the LCD keep flashing.In order to avoid the user’s trouble, and the LCD will light up when it enter into the power generating mode. In other mode, if the user wants to check the relevant data of the inverter, he can tap the inverter body and wake up the LCD.
• When the inverter enter into the protection and fault mode, its corresponding protection and fault code may also appear twice or more. At this time, the protection or fault code display space below the LCD display screen will alternately display a variety of protection or fault code every 2 seconds.

LCD panel power saving mode
The LCD will enter sleep mode if no operation last for 2 minutes , to wake it up please tap on the shell slightly.

LED blink table

• Lightened constantly
• Flashing

Troubleshooting and maintenance

Troubleshooting
This part introduces the common fault and solving steps, provides troubleshooting method and skills to the user, and helps the user identify and solve some common fault of the inverter.

Tip
Faults mentioned in this part means the inverter enters the protection state or fault state.

• The protection state is mostly caused by some external reasons, the inverter output is not matched with the grid, the grid is power off or the system is not correctly earthed, and thus the inverter acts to ensure the own safety. The inverter itself has no defect and can recover from the protection state if the system is correctly designed and installed.
• Sometimes the inverter enters the protection state by the own defect and can be recovered by resetting or repairing.
• The fault state is caused by incorrect design of system, e.g: the DC voltage is too high, and thus the inverter acts to protect the system safety. The inverter can be recovered from some faults automatically or by resetting, and some faults are caused by the own defect of the inverter, and in this case the inverter cannot be recovered and shall be repaired.

Correctly identifying the fault state of the inverter is helpful for solving the fault, so please threat as per the following steps:

1. Check if the status displayed on the panel is a protection state or fault state, and record all error codes.
2. Try the solution listed in Tab.6-1 and 6-2 and meanwhile check as per the following steps.
   • If the voltage at the AC/DC side is normal and if the breaker is switched on?
   • If the inverter is installed in a clean , dry and well ventilated place?
   • If the cable sectional area satisfies the requirement?
   • If the connecting cables is too long?
   • If all cables are firmly connected?
   • If wiring is reasonable?
   • If the safety standard setting is correct?
3. If you meet any problem that you cannot solve by yourself, please contact the client service man of us for the optimal solution, please provide the detailed system installation information, inverter model, serial number and fault information.

Tab. 6-1: Protection code and solution

Tab. 6-2: Fault code and solution

Daily maintenance
It is unnecessary to maintain the inverter in normal conditions but it is necessary to make sure the inverter is not covered by dust.

Cleaning
The inverter can be cleaned by electric compressed air blower, dry soft cloth or soft brush. P lease never clean the inverter by any water, corrosive chemical agent or cleaning agent.

Heat radiation
To protect the normal operation and prolong the service life of the inverter, the inverter must be installed in a well ventilated space without any air barrier surrounding the heat radiator at the back of the inverter, and dust or snow must be removed timely if any.

Uninstallation

The inverter shall be treated as per the following steps if it is to be replaced or out of service.

Uninstalling steps

1. Switch off the AC breaker.
2. Switch off the DC breaker.
3. Wait for 1 0min till the inverter is fully discharged.
4. Check by a multimeter and make sure neither the AC side nor the DC side is electrified.
5. Press the right position of the terminal as Fig.7-1,When you hear a “click”, then you can pull out the positive and negative DC terminal adaptor as Fig.7-2.

Packing
Please pack the inverter with the original package if possible. If the original package is not available, please pack with a carton satisfying the following requirement.

• Firm enough for 45kg.
• Easy for handing.
• Fully closeable.

Storing
The inverter must be stored in a dry and clean place of -30 ‘C- +80 ‘C.

Solution at the termination of service period
At the termination of inverter service period, please send the inverter and package material to the designated place for electronic waste treatment. Contact the related authority for treating and recovering if necessary. No inverter or any part can be disposed or own accord.

Technical parameters

Tab. 8-1: Technical parameters

Quality assurance

Warranty Policy
For our customers we provide 5 years standard warranty from the date of installation, you can also upgrade your standard warranty to 10 years. Please keep the purchasing invoice and trade mark clear for warranty. For more information, please contact your local dealer.

Exception clause
Any of the following situation will not be covered by our warranty policy:

• Use of undersigned purpose.
• Incorrect system design.
• Incorrect installation.
• Use of any unacceptable in the system.
• Misuse or improper operation.
• Any unauthorized modification or repairing.
• The inverter is damaged by any force majeure(electric shock, fire accident, earthquack or seaquake, ect).
• Operating beyond safety regulations.
• Damage during transportation.

Warranty card
Tab. 9-1: Warranty card

Customer Information

• Name:
• Address:
• Zip Code:
• Tel:
• E-mail:
• Fax:

Installation Information

• PV module type (parameters):
• Number of Strings:
• Installation Company:
• Modules Per String:
• Installation site:
• Installer Name:

Inverter detailed Information

• Fault Time:
• Number of used Products:
• Date of Bill of Lading:
• Fault Messages:
• Model of Products:
• Number of Fault Products:

Brief Fault Description and Photos (Can be attached):

• Customer Signature:
• Date:

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