HUAWEI SUN2000-20KTL, SUN2000-29.9KTL, SUN2000- 30KTL, SUN2000- 36KTL, SUN2000- 40KTL User Manual

SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)M3

User Manual

Issue 01

Date 2020-10-15

HUAWEI TECHNOLOGIES CO., LTD.

No part of this document may be reproduced or transmitted in any form or by any means without prior written consent of Huawei Technologies Co., Ltd.

Trademarks and Permissions

and other Huawei trademarks are trademarks of Huawei Technologies Co., Ltd. All other trademarks and trade names mentioned in this document are the property of their respective holders.

Notice

The purchased products, services and features are stipulated by the contract made between Huawei and the customer. All or part of the products, services and features described in this document may not be within the purchase scope or the usage scope. Unless otherwise specied in the contract, all statements, information, and recommendations in this document are provided "AS IS" without warranties, guarantees or representations of any kind, either express or implied.

The information in this document is subject to change without notice. Every eort has been made in the preparation of this document to ensure accuracy of the contents, but all statements, information, and recommendations in this document do not constitute a warranty of any kind, express or implied.

Huawei Technologies Co., Ltd.

Address: Huawei Industrial Base

Bantian, Longgang Shenzhen 518129 People's Republic of China

Website: https://e.huawei.com

SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)M3 User Manual About this Document

About this Document

Overview

This document describes the SUN2000-20KTL-M3, SUN2000-29.9KTL-M3, SUN2000-30KTL-M3, SUN2000-36KTL-M3, and SUN2000-40KTL-M3 (SUN2000 for short) in terms of their installation, electrical connections, commissioning, maintenance, and troubleshooting. Before installing and operating the SUN2000, ensure that you are familiar with the features, functions, and safety precautions provided in this document.

Intended Audience

This document is applicable to:

● Installers

● Users

Symbol Conventions

The symbols that may be found in this document are

Symbol

dened as follows.

Remarks

Indicates a hazard with a high level of risk which, if not avoided, will result in death or serious injury.

Indicates a hazard with a medium level of risk which, if not avoided, could result in death or serious injury.

Indicates a hazard with a low level of risk which, if not avoided, could result in minor or moderate injury.

SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)M3 User Manual About this Document

Symbol Remarks

Indicates a potentially hazardous situation which, if not avoided, could result in equipment damage, data loss, performance deterioration, or unanticipated results.

NOTICE is used to address practices not related to personal injury.

Supplements the important information in the main text.

NOTE is used to address information not related to personal injury, equipment damage, and environment deterioration.

Change History

Changes between document issues are cumulative. The latest document issue contains all changes made in earlier issues.

Issue 01 (2020-10-15)

This issue is the rst ocial release.

SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)M3 User Manual Contents

About this Document................................................................................................................. ii

1 Safety Information.................................................................................................................. 1

1.1 General Safety.......................................................................................................................................................................... 1

1.2 Personnel Requirements....................................................................................................................................................... 2

1.3 Electrical Safety........................................................................................................................................................................3

1.4 Installation Environment Requirements.......................................................................................................................... 4

1.5 Mechanical Safety................................................................................................................................................................... 4

1.6 Commissioning......................................................................................................................................................................... 5

1.7 Maintenance and Replacement..........................................................................................................................................6

2 Overview....................................................................................................................................7

2.1 Overview.................................................................................................................................................................................... 7

2.2 Appearance................................................................................................................................................................................9

2.3 Label Description.................................................................................................................................................................. 10

2.4 Working Principles................................................................................................................................................................ 12

2.4.1 Circuit Diagram.................................................................................................................................................................. 12

2.4.2 Working Modes.................................................................................................................................................................. 13

3 SUN2000 Storage...................................................................................................................15

4 Installation..............................................................................................................................16

4.1 Checking Before Installation............................................................................................................................................. 16

4.2 Tool Preparation.................................................................................................................................................................... 17

4.3 Selecting an Installation Position.................................................................................................................................... 18

4.4 Moving the SUN2000.......................................................................................................................................................... 21

4.5 Installing the Mounting Bracket...................................................................................................................................... 22

4.5.1 Support-mounted Installation.......................................................................................................................................23

4.5.2 Wall-mounted Installation............................................................................................................................................. 24

4.6 Installing a SUN2000........................................................................................................................................................... 25

5 Electrical Connections.......................................................................................................... 27

5.1 Precautions.............................................................................................................................................................................. 27

5.2 Preparing Cables................................................................................................................................................................... 28

5.3 Connecting the PE Cable.................................................................................................................................................... 30

5.4 Connecting the AC Output Power Cable...................................................................................................................... 32

SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)M3 User Manual Contents

5.5 Installing the DC Input Power Cable.............................................................................................................................. 34

5.6 (Optional) Installing the Smart Dongle........................................................................................................................ 37

5.7 Connecting the Signal Cable............................................................................................................................................. 39

5.7.1 Communication Modes................................................................................................................................................... 41

5.7.2 (Optional) Connecting the RS485 Communications Cable to the SUN2000............................................... 42

5.7.3 (Optional) Connecting the RS485 Communications Cable to the Power Meter.........................................43

5.7.4 (Optional) Connecting the Power Grid Scheduling Signal Cable..................................................................... 44

5.7.5 (Optional) Connecting the Rapid Shutdown Signal Cable................................................................................. 45

6 Commissioning.......................................................................................................................47

6.1 Checking Before Power-On................................................................................................................................................47

6.2 System Power-On................................................................................................................................................................. 48

7 Man-Machine Interaction....................................................................................................50

7.1 Scenario in Which SUN2000s Are Connected to the FusionSolar Smart PV Management System.........51

7.1.1 (Optional) Registering an Installer Account............................................................................................................ 51

7.1.2 Creating a PV Plant and a User.................................................................................................................................... 52

7.1.3 SmartLogger Networking Scenario............................................................................................................................. 52

7.2 Scenario in Which SUN2000s Are Connected to Other Management Systems..............................................53

8 Maintenance...........................................................................................................................54

8.1 System Power-O.................................................................................................................................................................54

8.2 Routine Maintenance.......................................................................................................................................................... 55

8.3 Troubleshooting..................................................................................................................................................................... 55

9 Handling the Inverter...........................................................................................................66

9.1 Removing the SUN2000..................................................................................................................................................... 66

9.2 Packing the SUN2000..........................................................................................................................................................66

9.3 Disposing of the SUN2000................................................................................................................................................ 66

10 Technical

Specications.....................................................................................................67

A Grid Code................................................................................................................................ 73

B Device Commissioning......................................................................................................... 76

C Setting Power Adjustment Parameters........................................................................... 79

D Built-in PID Recovery........................................................................................................... 80

E Rapid Shutdown.................................................................................................................... 82

F Resetting Password...............................................................................................................83

G Setting Dry Contact Scheduling Parameters..................................................................84

H AFCI.......................................................................................................................................... 85

I Smart I-V Curve Diagnosis....................................................................................................88

J Acronyms and Abbreviations...............................................................................................89

SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)M3 User Manual 1 Safety Information

1 Safety Information

1.1 General Safety

Statement

Before installing, operating, and maintaining the equipment, read this document and observe all the safety instructions on the equipment and in this document.

The "NOTICE", "CAUTION", "WARNING", and "DANGER" statements in this document do not cover all the safety instructions. They are only supplements to the safety instructions. Huawei will not be liable for any consequence caused by the violation of general safety requirements or design, production, and usage safety standards.

Ensure that the equipment is used in environments that meet its design specications. Otherwise, the equipment may become faulty, and the resulting equipment malfunction, component damage, personal injuries, or property damage are not covered under the warranty.

Follow local laws and regulations when installing, operating, or maintaining the equipment. The safety instructions in this document are only supplements to local laws and regulations.

Huawei will not be liable for any consequences of the following circumstances:

● Operation beyond the conditions

● Installation or use in environments which are not international or national standards

● Unauthorized modications to the product or software code or removal of the product

● Failure to follow the operation instructions and safety precautions on the product and in this document

● Equipment damage due to force majeure, such as earthquakes, re, and storms

● Damage caused during transportation by the customer

● Storage conditions that do not meet the requirements specied in this document

specied in this document

specied in relevant

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SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)M3 User Manual 1 Safety Information

General Requirements

Do not work with power on during installation.

● Do not install, use, or operate outdoor equipment and cables (including but not limited to moving equipment, operating equipment and cables, inserting connectors to or removing connectors from signal ports connected to outdoor facilities, working at heights, and performing outdoor installation) in harsh weather conditions such as lightning, rain, snow, and level 6 or stronger wind.

● After installing the equipment, remove idle packing materials such as cartons, foam, plastics, and cable ties from the equipment area.

● In the case of a

● Do not scrawl, damage, or block any warning label on the equipment.

● Tighten the screws using tools when installing the equipment.

● Understand the components and functioning of a grid-tied PV power system

● Repaint any paint scratches caused during equipment transportation or

● Do not open the host panel of the equipment.

Personal Safety

● If there is a probability of personal injury or equipment damage during

● Use tools correctly to avoid hurting people or damaging the equipment.

● Do not touch the energized equipment, as the enclosure is hot.

re, immediately leave the building or the equipment area, and turn on the re alarm bell or make an emergency call. Do not enter the building on

and relevant local standards.

installation in a timely manner. Equipment with scratches cannot be exposed to an outdoor environment for a long period of time.

operations on the equipment, immediately stop the operations, report the case to the supervisor, and take feasible protective measures.

re in any case.

1.2 Personnel Requirements

● Personnel who plan to install or maintain Huawei equipment must receive thorough training, understand all necessary safety precautions, and be able to correctly perform all operations.

● Only

● Personnel who will operate the equipment, including operators, trained

qualied professionals or trained personnel are allowed to install,

operate, and maintain the equipment.

qualied professionals are allowed to remove safety facilities and inspect

the equipment.

personnel, and professionals, should possess the local national required qualications in special operations such as high-voltage operations, working at heights, and operations of special equipment.

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SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)M3 User Manual 1 Safety Information

● Only professionals or authorized personnel are allowed to replace the equipment or components (including software).

● Professionals: personnel who are trained or experienced in equipment operations and are clear of the sources and degree of various potential hazards in equipment installation, operation, and maintenance

● Trained personnel: personnel who are technically trained, have required experience, are aware of possible hazards on themselves in certain operations, and are able to take protective measures to minimize the hazards on themselves and other people

● Operators: operation personnel who may come in contact with the equipment, except trained personnel and professionals

1.3 Electrical Safety

Grounding

● For the equipment that needs to be grounded, install the ground cable rst when installing the equipment and remove the ground cable last when removing the equipment.

● Do not damage the ground conductor.

● Do not operate the equipment in the absence of a properly installed ground conductor.

● Ensure that the equipment is connected permanently to the protective ground. Before operating the equipment, check its electrical connection to ensure that it is securely grounded.

General Requirements

Before connecting cables, ensure that the equipment is intact. Otherwise, electric shocks or re may occur.

● Ensure that all electrical connections comply with local electrical standards.

● Obtain approval from the local electric utility company before using the equipment in grid-tied mode.

● Ensure that the cables you prepared meet local regulations.

● Use dedicated insulated tools when performing high-voltage operations.

AC and DC Power

Do not connect or disconnect power cables with power on. Transient contact between the core of the power cable and the conductor will generate electric arcs or sparks, which may cause

re or personal injury.

SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)M3 User Manual 1 Safety Information

● Before making electrical connections, switch o the disconnector on the upstream device to cut o the power supply if people may contact energized components.

● Before connecting a power cable, check that the label on the power cable is correct.

● If the equipment has multiple inputs, disconnect all the inputs before operating the equipment.

Cabling

● When routing cables, ensure that a distance of at least 30 mm exists between the cables and heat-generating components or areas. This prevents damage to the insulation layer of the cables.

● Bind cables of the same type together. When routing cables of ensure that they are at least 30 mm away from each other.

● Ensure that the cables used in a grid-tied PV power system are properly connected and insulated and meet

specications.

dierent types,

1.4 Installation Environment Requirements

● Ensure that the equipment is installed in a well ventilated environment.

● To prevent heat dissipation system are not blocked when the equipment is running.

● Do not expose the equipment to not perform any operation on the equipment in such environments.

re due to high temperature, ensure that the ventilation vents or

ammable or explosive gas or smoke. Do

1.5 Mechanical Safety

Using Ladders

● Use wooden or heights.

● When a step ladder is used, ensure that the pull ropes are secured and the ladder is held

● Before using a ladder, check that it is intact and conrm its load bearing capacity. Do not overload it.

● Ensure that the wider end of the ladder is at the bottom, or protective measures have been taken at the bottom to prevent the ladder from sliding.

● Ensure that the ladder is securely positioned. The recommended angle for a ladder against the angle rule can be used to measure the angle.

berglass ladders when you need to perform live working at

rm.

oor is 75 degrees, as shown in the following gure. An

SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)M3 User Manual 1 Safety Information

● When climbing a ladder, take the following precautions to reduce risks and ensure safety:

– Keep your body steady.

– Do not climb higher than the fourth rung of the ladder from the top.

– Ensure that your body's center of gravity does not shift outside the legs

of the ladder.

Drilling Holes

When drilling holes into a wall or

● Wear goggles and protective gloves when drilling holes.

● When drilling holes, protect the equipment from shavings. After drilling, clean up any shavings that have accumulated inside or outside the equipment.

Moving Heavy Objects

● Be cautious to avoid injury when moving heavy objects.

● When moving the equipment by hand, wear protective gloves to prevent injuries.

1.6 Commissioning

When the equipment is powered on for the personnel set parameters correctly. Incorrect settings may result in inconsistency with local

certication and aect the normal operation of the equipment.

oor, observe the following safety precautions:

rst time, ensure that professional

D ANGER

SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)M3 User Manual 1 Safety Information

1.7 Maintenance and Replacement

High voltage generated by the equipment during operation may cause an electric shock, which could result in death, serious injury, or serious property damage. Prior to maintenance, power precautions in this document and relevant documents.

● Maintain the equipment with sucient knowledge of this document and using proper tools and testing equipment.

● Before maintaining the equipment, power it o and follow the instructions on the delayed discharge label to ensure that the equipment is powered

● Place temporary warning signs or erect fences to prevent unauthorized access to the maintenance site.

● If the equipment is faulty, contact your dealer.

● The equipment can be powered on only after all faults are do so may escalate faults or damage the equipment.

o the equipment and strictly comply with the safety

o.

rectied. Failing to

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SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)M3 User Manual 2 Overview

2 Overview

2.1 Overview

Function

Model

The SUN2000 inverter is a three-phase grid-tied PV string inverter that converts the DC power generated by PV strings into AC power and feeds the power into the power grid.

This document covers the following SUN2000 models:

● SUN2000-20KTL-M3

● SUN2000-29.9KTL-M3

● SUN2000-30KTL-M3

● SUN2000-36KTL-M3

● SUN2000-40KTL-M3

The SUN2000-20KTL-M3 supports 220 V (line voltage) power grids.

Figure 2-1 Model description (SUN2000-30KTL-M3 is used as an example)

Table 2-1 Model description

1 Series name SUN2000: three-phase grid-tied PV string

Meaning Value

inverter

SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)M3 User Manual 2 Overview

ID Meaning Value

2 Power class ● 20K: rated power of 20 kW

● 29.9K: rated power of 29.9 kW

● 30K: rated power of 30 kW

● 36K: rated power of 36 kW

● 40K: rated power of 40 kW

3 Topology TL: transformerless

4 Product code M3: product series with an input voltage level

of 1100 V DC

Networking Application

The SUN2000 applies to the grid-tied systems of industrial and commercial rooftops and small ground PV plants. Typically, a grid-tied system consists of PV strings, grid-tied inverters, AC switches, and power distribution units.

Figure 2-2 Networking application - single inverter scenario

(1) PV string

(4) Isolation transformer (5) Power grid

Supported Power Grid Types

The SUN2000 supports TN-S, TN-C, TN-C-S, TT, and IT power grids.

(2) SUN2000 (3) AC power distribution

unit

SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)M3 User Manual 2 Overview

Figure 2-3 Power grid types

2.2 Appearance

Figure 2-4 Appearance

SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)M3 User Manual 2 Overview

(1) LED indicator (2) Front panel

(3) Heat sink (4) Screws for xing the awning

(5) Communications port (COM) (6) Hole for the DC switch locking

screw

(7) DC switch (DC SWITCH) (8) Smart Dongle port (4G/WLAN-FE)

(9) Ventilation valve (10) DC input terminals (PV1–PV8)

(11) AC output port (12) Ground point

2.3 Label Description

Nameplate

Figure 2-5 Nameplate

(1) Trademark and product model (2) Key technical parameters

(3) Label information (4) Company name and country of

origin

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SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)M3 User Manual 2 Overview

The nameplate gure is for reference only.

Enclosure Labels

Symbol Name Description

Delay discharge Residual voltage exists

after the SUN2000 is powered o. It takes 5 minutes for the SUN2000 to discharge to the safe voltage.

Burn warning Do not touch a

running SUN2000 because it generates high temperatures on the shell.

Electric shock warning ● High voltage exists

after the SUN2000 is powered on. Only qualied and trained electrical technicians are allowed to perform operations on the SUN2000.

● High touch current exists after the SUN2000 is powered on. Before powering on the SUN2000, ensure that the SUN2000 is properly grounded.

Refer to documentation

Reminds operators to refer to the documents delivered with the SUN2000.

Grounding label Indicates the position

for connecting the PE cable.

Operation warning Do not remove the DC

input connector or AC output connector with power on.

SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)M3 User Manual 2 Overview

Symbol Name Description

Weight label The SUN2000 is heavy

and needs to be carried by three persons.

Indicator Indicates the SUN2000

operating information.

2.4 Working Principles

2.4.1 Circuit Diagram

A SUN2000 can connect to a maximum of eight PV strings and has four MPPT circuits inside. Each MPPT circuit tracks the maximum power point of two PV strings. The SUN2000 converts DC power into single-phase AC power through an inverter circuit. Surge protection is supported on both the DC and AC sides.

SUN2000 serial number

SUN2000 WiFi login QR code

Indicates the serial number.

Scan the QR code to connect to the Huawei SUN2000 WiFi network.

SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)M3 User Manual 2 Overview

Figure 2-6 Schematic diagram

2.4.2 Working Modes

The SUN2000 can work in Standby, Operating, or Shutdown mode.

Figure 2-7 Working modes

SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)M3 User Manual 2 Overview

Table 2-2 Working mode description

Working

Description

Mode

Standby The SUN2000 enters Standby mode when the external

environment does not meet the operating requirements. In Standby mode:

● The SUN2000 continuously performs status check and enters the Operating mode once the operating requirements are met.

● The SUN2000 enters Shutdown mode after detecting a shutdown command or a fault after startup.

Operating In Operating mode:

● The SUN2000 converts DC power from PV strings into AC power and feeds the power to the power grid.

● The SUN2000 tracks the maximum power point to maximize the PV string output.

● If the SUN2000 detects a fault or a shutdown command, it enters the Shutdown mode.

● The SUN2000 enters Standby mode after detecting that the PV string output power is not suitable for connecting to the power grid for generating power.

Shutdown ● In Standby or Operating mode, the SUN2000 enters Shutdown

mode after detecting a fault or shutdown command.

● In Shutdown mode, the SUN2000 enters Standby mode after detecting a startup command or that the fault is rectied.

SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)M3 User Manual 3 SUN2000 Storage

3 SUN2000 Storage

The following requirements should be met if the SUN2000 is not put into use directly:

● Do not unpack the SUN2000.

● Keep the storage temperature at –40°C to +70°C and the humidity at 5%– 95% RH.

● Store the SUN2000 in a clean and dry place and protect it from dust and water vapor corrosion.

● A maximum of six SUN2000s can be stacked. To avoid personal injury or device damage, stack SUN2000s with caution to prevent them from falling over.

● During the storage period, check the SUN2000 periodically (recommended: every three months). If any rodent bites are found on the packing materials, replace the packing materials immediately.

● If the SUN2000 has been stored for more than two years, it must be checked and tested by professionals before being put into use.

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SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)M3 User Manual 4 Installation

4 Installation

4.1 Checking Before Installation

Outer Packing Materials

Before unpacking the inverter, check the outer packing materials for damage, such as holes and cracks, and check the inverter model. If any damage is found or the inverter model is not what you requested, do not unpack the package and contact your supplier as soon as possible.

You are advised to remove the packing materials within 24 hours before installing the inverter.

Package Contents

After unpacking the inverter, check that the contents are intact and complete. If any damage is found or any component is missing, contact your supplier.

For details about the number of contents, see the

Packing List

in the packing case.

SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)M3 User Manual 4 Installation

4.2 Tool Preparation

Type Tools and Instruments

Install ation

Hammer drill (with a Ф14 mm drill bit and a Ф16 mm drill bit)

Diagonal pliers Wire stripper Torque screwdriver

Rubber mallet Utility knife Cable cutter

Torque socket and wrench Torque wrench

Crimping tool (model: PV-CZM-22100)

Vacuum cleaner Multimeter (DC voltage

Open-end wrench (model: PV-MS-HZ or PV-MS openend wrench)

measurement range ≥ 1100 V DC)

Cable tie

Marker

SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)M3 User Manual 4 Installation

Type Tools and Instruments

Steel measuring tape Level Hydraulic pliers

Heat shrink tubing Heat gun

Person al protec tive equip ment (PPE)

Safety gloves Safety goggles Anti-dust mask

- -

Safety boots

4.3 Selecting an Installation Position

Basic Requirements

● The SUN2000 is IP66-rated and can be installed indoors or outdoors.

● Do not install the SUN2000 in a place where a person can easily be exposed to its enclosure and heat sinks, because these parts are extremely hot during operation.

● Do not install the SUN2000 in areas with ammable or explosive materials.

● Do not install the SUN2000 in a place within children's reach.

● The SUN2000 will be corroded in salt areas, and the salt corrosion may cause re. Do not install the SUN2000 outdoors in salt areas. A salt area refers to the region within 500 m from the coast or prone to sea breeze. The eect from sea breeze depends on weather conditions (such as typhoon and season wind) or terrains (such as dams and hills).

SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)M3 User Manual 4 Installation

Site Requirements

● The SUN2000 should be installed in a well-ventilated environment to ensure good heat dissipation.

● If the SUN2000 is installed in a place exposed to direct sunlight, the power may decrease as the temperature rises.

● You are advised to install the SUN2000 in a sheltered place or install an awning over it.

Mounting Structure Requirements

● The mounting structure where the SUN2000 is installed must be

● Do not install the SUN2000 on ammable building materials.

● The SUN2000 is heavy. Ensure that the installation surface is solid enough to bear the weight load.

● In residential areas, do not install the SUN2000 on drywalls or walls made of similar materials which have a weak sound insulation performance because the noise generated by the SUN2000 is noticeable.

Installation Angle Requirements

The SUN2000 can be wall-mounted or support-mounted. Requirements for the installation angle:

● Install the SUN2000 vertically or at a maximum back tilt of 15 degrees to facilitate heat dissipation.

● Do not install the SUN2000 with a front tilt, excessive back tilt, side tilt, horizontally, or upside down.

Figure 4-1 Installation angle

re resistant.

Installation Space Requirements

● Reserve enough clearance around the SUN2000 to ensure installation and heat dissipation.

sucient space for

SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)M3 User Manual 4 Installation

Figure 4-2 Installation space

● When installing multiple SUN2000s, install them in horizontal mode if ample space is available and install them in triangle mode if no ample space is available. Stacked installation is not recommended.

Figure 4-3 Horizontal installation (recommended)

Figure 4-4 Two-layer triangle installation (recommended)

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SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)M3 User Manual 4 Installation

Figure 4-5 Three-layer triangle installation (not recommended)

Figure 4-6 Stacked installation (not recommended)

The installation diagrams are for reference only and are irrelevant to the SUN2000 cascading scenario.

4.4 Moving the SUN2000

Procedure

Step 1 Lift the SUN2000 from the packing case and move it to the specied installation

position.

CA UTION

SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)M3 User Manual 4 Installation

● Move the SUN2000 with care to prevent device damage and personal injury.

● Do not use the wiring terminals and ports at the bottom to support any weight

of the SUN2000.

● Place a foam pad or cardboard under the SUN2000 to protect the SUN2000

enclosure from damage.

Figure 4-7 Moving the SUN2000

----End

4.5 Installing the Mounting Bracket

Installation Precautions

Before installing the mounting bracket, remove the security Torx wrench and set it aside.

Figure 4-8 Position for binding the security Torx wrench

(1) Security Torx wrench

Figure 4-9 shows the dimensions of the mounting holes for the SUN2000.

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SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)M3 User Manual 4 Installation

Figure 4-9 Mounting bracket dimensions

4.5.1 Support-mounted Installation

Procedure

Step 1 Secure the mounting bracket.

Figure 4-10 Securing the mounting bracket

You are advised to apply anti-rust paint on the hole positions for protection.

----End

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