SMA SC 500U Installation

Central Inverter

SUNNY CENTRAL 500U

Installation Guide

SC500U-IUS093411 | 98-4014611 | Version 1.1

SMA Solar Technology AG

or by any means, electronic, mechanical, photographic, magnetic or otherwise, without the prior written permission of SMA America, Inc.

SMA America makes no representations, express or implied, with respect to this documentation or any of the equipment and/or software it may describe, including (with no limitation) any implied warranties of utility, merchantability, or fitness for any particular purpose. All such warranties are expressly disclaimed. Neither SMA America nor its distributors or dealers shall be liable for any indirect, incidental, or consequential damages under any circumstances.

(The exclusion of implied warranties may not apply in all cases under some statutes, and thus the above exclusion may not apply.)

Specifications are subject to change without notice. Every attempt has been made to make this document complete, accurate and up-to-date. Readers are cautioned, however, that SMA America reserves the right to make changes without notice and shall not be responsible for any damages, including indirect, incidental or consequential damages, caused by reliance on the material presented, including, but not limited to, omissions, typographical errors, arithmetical errors or listing errors in the content material.

SMA America, Incorporated

4031 Alvis Court

Rocklin, California 95677-4011

Tel 916.625.0870

Fax 916.625.0871

www.sma-america.com

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SMA Solar Technology AG

IMPORTANT SAFETY INSTRUCTIONS

SAVE THESE INSTRUCTIONS

This manual contains important instructions for Models SC 500U PV INVERTERS, that shall be followed during installation and maintenance of the inverter.

The Sunny Central is designed and tested according to international safety requirements, but as with all electrical and electronic equipment, certain precautions must be observed when installing and/or operating the Sunny Central. To reduce the risk of personal injury and to ensure the safe installation and operation of the Sunny Central, you must carefully read and follow all instructions, cautions and warnings in this Installation Guide.

Warnings

A Warning describes a hazard to equipment or personnel. It calls attention to a procedure or practice, which, if not correctly performed or adhered to, could result in damage to or destruction of part or all of the SMA equipment and/or other equipment connected to the SMA equipment or personal injury.

DANGER

DANGER indicates a hazardous situation which, if not avoided, will result in death or serious injury.

WARNING

WARNING indicates a hazardous situation which, if not avoided, could result in death or serious injury.

CAUTION

CAUTION indicates a hazardous situation which, if not avoided, could result in minor or moderate injury.

NOTICE

NOTICE indicates a situation that can result in property damage if not avoided.

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Other Symbols

In addition to the safety and hazard symbols described on the previous pages, the following symbol is also used in this Installation Guide:

Information

This symbol accompanies notes that call attention to supplementary information that you should know and use to ensure optimal operation of the system.

Markings on this Product

The following symbols are used as markings on this product with the following meanings.

Warning regarding dangerous voltage The product works with high voltages. All work on the product may only be done as

described in its documentation.

Beware of hot surface The product can become hot during operation. Avoid coming into contact with the

product during operation.

Observe the operating instructions Read the product’s documentation before working on it. Follow all safety precautions

and instructions as described in the documentation.

DC current

Earth Ground

AC current

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General Warnings

Al l el ectrical ins talla tio ns m ust be done in accor dan ce w ith the local and National Electrical Code ANSI/NFPA 70.

The Sunny Central contains no user-serviceable parts. For all repair and maintenance always contact an authorized SMA Service Center.

Before installing or using the Sunny Central, read all of the instructions, cautions, and warnings on the Sunny Central, the PV array, in this Installation Guide and in User Manual.

Before connecting the Sunny Central to the electrical utility grid, contact the local utility company. This connection must be made only by qualified personnel.

PV arrays produce electrical energy when exposed to light and thus can create an electrical shock hazard. Wiring of the PV-arrays shall only be performed by qualified personnel.

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SMA Solar Technology AG Table of Contents

Table of Contents

1 Notes on this Manual. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

1.1 Target Group . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

1.2 Validity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

1.3 Structure of this Documentation . . . . . . . . . . . . . . . . . . . . . . . . 11

2 Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

2.1 Appropriate Usage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

2.2 Safety Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

3 The Sunny Central . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

3.1 System Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

3.2 The Sunny Central's Design. . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

3.3 Location of the Safety Notices . . . . . . . . . . . . . . . . . . . . . . . . . 18

3.4 Identifying the Sunny Central . . . . . . . . . . . . . . . . . . . . . . . . . . 19

3.5 Firmware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

4 Unpacking. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

4.1 Unpacking and Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

4.2 Scope of Delivery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

4.3 Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

5 Transport and Installation . . . . . . . . . . . . . . . . . . . . . . . . . 22

5.1 Choosing the Installation Site . . . . . . . . . . . . . . . . . . . . . . . . . . 22

5.1.1 Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

5.1.2 Weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

5.1.3 Ambient Conditions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

5.1.4 Minimum Clearance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

5.1.5 Characteristics of the Base . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

5.2 Preparation of the Base . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

5.2.1 Position of the Mounting Holes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

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5.2.2 Size of the Mounting Holes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

5.2.3 Drilling Holes into the Base . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

5.3 Transporting the Sunny Central. . . . . . . . . . . . . . . . . . . . . . . . . 25

5.3.1 Equipment for Transport . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

5.3.2 Center of Gravity of the Sunny Central. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

5.4 Installing the Sunny Central . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

5.4.1 Removing the Kick Plates from the Sunny Central . . . . . . . . . . . . . . . . . . . . . 26

5.4.2 Inserting the Cables into the Cabinets. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

5.4.3 Connect the Cables in the Magnetics Cabinet . . . . . . . . . . . . . . . . . . . . . . . 29

5.4.4 Connecting the Cables in the Control Cabinet . . . . . . . . . . . . . . . . . . . . . . . 31

5.4.5 Attach the Sunny Central to the base . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

5.4.6 Install the Cover Between the Cabinets. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

5.4.7 Install Ventilation Plates. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

5.4.8 Attaching the Kick Plates to the Sunny Central . . . . . . . . . . . . . . . . . . . . . . . 34

5.4.9 Remove Transport Locks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

6 Attaching the Conduits. . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

6.1 Insert cables from the right into the Sunny Central . . . . . . . . . . 35

6.2 Insert cables from below into the Sunny Central. . . . . . . . . . . . 36

7 Connecting Optional Communication Devices . . . . . . . . 38

7.1 Position of the Communication Devices . . . . . . . . . . . . . . . . . . 39

7.2 Connecting the Sunny SensorBox (optional) . . . . . . . . . . . . . . 39

7.2.1 Connecting the Data Cable of the Sunny SensorBox . . . . . . . . . . . . . . . . . . 40

7.3 Sunny WebBox (optional) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

7.3.1 Installing the WebBox in the Sunny Central . . . . . . . . . . . . . . . . . . . . . . . . . 42

7.3.2 Connecting the Sunny WebBox in the Sunny Central. . . . . . . . . . . . . . . . . . 43

7.3.3 Connecting the Cable to the Sunny WebBox . . . . . . . . . . . . . . . . . . . . . . . . 43

7.3.4 Termination . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

8 Electrical Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

8.1 Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

8.2 Connection Area. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

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8.3 Connection Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

8.3.1 Grid Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

8.3.2 DC Fuses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

8.3.3 Grounding the PV modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

8.4 Requirements for Connecting cables to Rails . . . . . . . . . . . . . . 47

8.4.1 Prepare Cables for Connecting to Rails . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

8.5 Connection of the PV Modules . . . . . . . . . . . . . . . . . . . . . . . . . 49

8.5.1 Requirements. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

8.5.2 Connecting the PV Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

8.6 AC Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

8.6.1 Requirements. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

8.6.2 Connecting AC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

9 Commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55

9.1 Visual Inspection of the Sunny Central . . . . . . . . . . . . . . . . . . . 55

9.2 Switching the Sunny Central On. . . . . . . . . . . . . . . . . . . . . . . . 56

9.3 Check the Ventilation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58

10 Opening the Sunny Central. . . . . . . . . . . . . . . . . . . . . . . . 60

10.1 Opening the Control Cabinet . . . . . . . . . . . . . . . . . . . . . . . . . . 60

10.2 Opening the Interface Cabinet . . . . . . . . . . . . . . . . . . . . . . . . . 61

10.3 Opening the Magnetics Cabinet . . . . . . . . . . . . . . . . . . . . . . . 62

11 Maintenance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63

11.1 Sunny Central Maintenance Work . . . . . . . . . . . . . . . . . . . . . . 63

11.2 Replace DC fuse . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63

12 Parameter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64

12.1 Parameter Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64

12.2 Changing Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68

13 Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69

13.1 Measurement Accuracy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71

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14 Contact . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72

15 Appendix - Celsius to Fahrenheit conversion. . . . . . . . . . 73

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1 Notes on this Manual

This manual describes the installation and the commissioning of a Sunny Central 500U with 6, 7, 8 and 9 DC fuses. This manual does not cover any details concerning PV modules. Information concerning the PV modules is available from the manufacturer of the PV modules.

1.1 Target Group

This manual is for qualified personnel. Qualified personnel has received training and has demonstrated skills and knowledge in the construction and operation of the device. Qualified personnel is trained to deal with the dangers and hazards in-raumvolved in installing electric devices.

1.2 Validity

This manual is valid for the Sunny Central 500U. In this manual the Sunny Central 500U is referred to as "Sunny Central".

1.3 Structure of this Documentation

The Sunny Central's installation comprises several steps. Here we will describe the contents you will find in the sections of the installation instructions.

The instructions are divided into the following sections:

Section 2: Safety

In this section you will find general safety directions which you must observe throughout the entire installation process. Pay special attention to this section, so as to avoid personal and material damages.

Section 3: The Sunny Central

In this section you will see how one can identify the Sunny Central. A short description of the Sunny Central's design and functions are given here.

Section 4: Unpacking

This section describes what to look out for upon receiving your Sunny Central, and who to turn to if your Sunny Central is damaged.

Section 5: Transport and Installation

This section shows you how to find the best installation site for your Sunny Central. It provides stepby-step instructions on how to transport and install the Sunny Central and connect the cabinets with each other electrically. Observe all safety precautions in this section to avoid material and personal damages.

Section 6: Attaching the Conduits

This section describes where to insert the cables in the Sunny Central and where to punch the holes for the conduits.

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Section 7: Connecting the Sunny WebBox

The Sunny Central can be equipped with a Sunny WebBox and/or a Sunny SensorBox. This section explains how the Sunny WebBox and the Sunny Sensor Box in the Sunny Central is connected.

Section 8: Electrical Connection

This section describes how the Sunny Central is connected to the grid and to the PV modules, and what precautions must be observed in order to avoid material and personal damages. It provides information on the necessary cable sizes and the magnitude of the torque for the cable connection.

Section 9: Commissioning

This section explains, step-by-step, how to put the Sunny Central into operation, and how you can determine that the commissioning was successful.

Section 10: Opening the Sunny Central

Th is s ect ion de scr ibe s ho w to op en t he S unn y Central and wh at p recautions must be observed in order to avoid personal damages.

Section 11: Maintenance

The Sunny Central inverter must be maintained at regular intervals. This section describes which works are included in maintenance and in which intervalls the maintenance works have to be done.

Section 12: Parameter

This section provides an overview of the parameters of the Sunny Central and their respective threshold values.

Section 13: Technical Data

In this section you will find the technical data for the Sunny Central's operation, the norms to which it conforms and the required cables and torques.

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2 Safety

2.1 Appropriate Usage

The Sunny Central is a MPPT (maximum power point tracker) PV inverter that converts the DC energy from PV modules to AC energy. This energy is then fed to the public grid. The Sunny Central 500U is designed for indoor and outdoor installation.

Principle of a PV Power System with a Sunny Central

CD F

S t o p S t a r t

Position Description

APV modules B DC distribution with DC fuses (e.g., Sunny Central String-Monitor) CDC disconnect DSunny Central EAC fuse F AC disconnect GPublic grid

Any other application of the Sunny Central or installation of components and modifications which are not explicitly allowed endanger the safety and void the warranty as well as the operation permit.

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It is prohibited:

• to use the Sunny central for purposes other than those described here.

• to connect voltage sources to the Sunny Central other than those consisting of PV modules.

• to modify the Sunny Central or to install components that are not explicitly recommended by SMA America or sold by SMA America for this purpose.

2.2 Safety Instructions

DANGER

High voltages are present in the live components of the low voltage grid Death resulting from burning and electric shock.

• Do not touch the live components of the Sunny Central or low-voltage grid.

• Pay close attention to all safety precaution measures regarding the low voltage grid.

DANGER

During operation, high voltages are present in the Sunny Central. Death resulting from electric shock.

• Do not operate the Sunny Central with doors open.

DANGER

During operation, high voltages are present in the Sunny Central. Death resulting from electric shock. Before commencing work on the Sunny Central:

• Disconnect completely.

• Ensure that the device cannot be reconnected.

• Ensure that no voltage is present.

• Ground and short-circuit.

• Cover any nearby live parts.

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DANGER

Normally grounded conductors may be ungrounded and energized when a ground-fault is indicated.

Risk of electric shock.

•Test before touching.

• Work on the Sunny Central must be carried out by qualified personnel.

WARNING

Fa ilu re t o fo llo w the m anu al, the ope rat ing ins tru ction s an d th e saf ety pr eca uti ons may lea d to severe injury from electric shock.

• All work on the Sunny Central shall only be done as described in this manual.

• Pay attention to all safety instructions.

• Follow all operating instructions.

• If problems occur when performing the work described here, contact SMA America.

WARNING

Operating a damaged Sunny Central may cause severe injury from electric shock.

• The Sunny Central shall only be used when it is technically faultless and safe to operate.

• Operate the Sunny Central only if there are no visible damages.

• Regularly check the Sunny Central for visible damage.

• Ensure that all safety features are accessible at all times and that their correct operation is tested regularly.

CAUTION

Cuts and scratches due to sharp edges inside the Sunny Central.

• When working on the Sunny Central wear protective gloves.

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NOTICE

The components in the Sunny Central can be damaged by electrostatic discharge.

• Whe n workin g on the S unny Central and when han dling th e compon ents observe all ESD safety regulations.

• Discharge electrostatic charge by touching the grounded Sunny Central enclosure.

Storage of handbooks

Keep this documentation in the immediate vicinity of the Sunny Central. It must be accessible to service and maintenance personnel at any time.

Do not store the documentation or any other papers in the Sunny Central.

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3 The Sunny Central

In this section you will see how one can identify the Sunny Central. A short description of the Sunny Central's design and functions are given here.

3.1 System Overview

The Sunny Central is an inverter for indoor and outdoor. The enclosure is made of steel which has been zinc plated and coated and which conforms to the NEMA 3R protection rating. NEMA 3R means that the Sunny Central is protected against dust and water and chemical aggressiv environment when it is closed.

Operating Principles

The PV modules convert a portion of sunlight into electrical energy (direct current). The Sunny Central then converts the direct current into alternating current and feeds it into the public grid. This current can be used directly, or it can be sold to your energy provider.

3.2 The Sunny Central's Design

The Sunny Central is divided into three sections.

A B

Position Description

A Magnetics Cabinet: The Sunny Central's transformer is contained in the

Magnetics Cabinet.

B Control Cabinet: The control cabinet contains the system control, the Sunny

Display, the stop/start switch and the power units for converting direct current to alternating current.

C Interface Cabinet: All AC, DC and data cables are connected in the interface

cabinet (see also Section 8.2 "Connection Area" (page45)).

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3.3 Location of the Safety Notices

The figure to the right shows the location of the safety notices on the Sunny Central.

Position Description

A Magnetics Cabinet door

General Warnings.

B Control Cabinet door and Interface

Cabinet door Warning regarding high voltages in the

Sunny Central.

C Open Magnetics Cabinet, capacitor

Warning regarding high voltages. Capacitor and plate are not grounded.

D Open Magnetices Cabinet

Beware of hot surfaces.

E Open Magnetices Cabinet

Type plate

F Control Cabinet left door

Maximum ambient temperature.

G Control Cabinet left door

Warning regarding ground-fault.

H Open Interface Cabinet, left side

Type plate

I Open Interface Cabinet

Beware of hot surfaces.

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3.4 Identifying the Sunny Central

You can identify the Sunny Central using the type plate (see figure at right). The type plate is on the inside of the Interface Cabinet.

Position Description

A Type description of the Sunny Central B Serial number of the Sunny Central C Fabrication Version D Fabrication Date

3.5 Firmware

The Sunny Central's firmware, and that of the display, are shown on the display of the Sunny Central.

The Sunny Central’s user manual describes how to obtain the firmware version.

SMA Solar Technology AG www.sma-america.com

SUNNY CENTRAL

Model: SC500U 0180100000

Fabrication Version:

Fabrication Date:

Max. Continuous output Power*

Operating voltage range (Vac 3-Phase)*

Min

422

Operating frequency range (Hz)*

Min

59.3

Max. continuous output current*

Output power factor

Range of input operating voltage

MPPT Range of operating DC voltage*

Max. operating current*

The unit contains DC-Ground and Fault Detector and Interruptor

ENCLOSURE

*For more details and for tightening torque, allowable wire size and type see the Operator’s Manual

Utility interactive inverter LISTED UL 1741 36AN

Serial No.:

P02

08/2009

Nominal Max

480 522

Nominal Max

60.0 60.5

300 - 600 Vdc

Type 3R (IP54)

Utility Interactive 3-Phase Inverter

FOR HOME AND OFFICE USE

290 - 600 Vdc

Tested To Comply

With FCC Standards

500kWac

601,4Aac

0.99-1,0

1600 Adc

B C D

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4 Unpacking

This section describes what to look out for upon receiving your Sunny Central, and who to turn to if your Sunny Central is damaged.

4.1 Unpacking and Inspection

All SMA Sunny Centrals are thoroughly checked before they are packaged and shipped. Although they are shipped in sturdy packaging, damage can still occur during shipping and delivery. It is important to carefully inspect the shipping container and contents prior to installation. If you detect any external damage after unpacking, report the damage immediately to your SMA dealer and shipping company that delivered the unit. If it becomes necessary to return the Sunny Central, use the original packing material.

If you need assistance with a damaged Sunny Central, contact your SMA dealer or SMA America. Contact information for SMA America is provided below.

SMA America, Incorporated

4031 Alvis Court

Rocklin, California 95677-4011

Tel.: 916-625-0870 Fax: 916-625-0871

www.sma-america.com

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Central Inverter

250U

Installation Guide

SUNNY C

ENTRAL

SMA

Centra

l Inverter

250U

Installation Guide

SUNNY CENTRAL

SMA

Central Inverter

250U

Installation Guide

SUNNY CENTRAL

SMA

Central Inverter

250U

Installation Guide

SUNNY CENTRAL

SMA

4.2 Scope of Delivery

S t o p S t a

r t

Central Inverter

SUNNY CENTRA

Installati

on Guide

CDE

250U

Central In

SUNNY CENTRAL

verter

Installation G

S M

uide

250U

Central Inverter

SUNNY CENTRAL

Installation Guide

S M

250U

Central Inverter

SUNNY CENTRAL

Installation Guide

250U

Position Description

A Magnetics Cabinet B Interface and Control Cabinet C Cover for the cables between the cabinets of the Sunny Central and screws D Condensate drain E Installation Guide, User Manual, Circuit Diagram, Test Report F Torx screwdriver GSealing splints H U-shaped plate I Ventilation plate with air filters for installation in the base of the Sunny Central J Non-woven abrasive K Allen key

4.3 Storage

NOTICE

Improper storage can cause moisture to seep into the Sunny Central. Damage to the Sunny Central.

• The Sunny Central must be closed during storage.

• If stored for 6 months or longer, make sure the storage area is dry.

Installation Guide SC500U-IUS093411 21

SMA Solar Technology AG

5 Transport and Installation

5.1 Choosing the Installation Site

5.1.1 Dimensions

S t o p S t a

79.8 in.

139.2 in.

36.6 in.

5.1.2 Weight

Position Cabinet Weight

A Magnetics Cabinet 4,740 lbs.

(2,150 kg)

B Control and Interface

Cabinet

2,425 lbs. (1,100 kg)

C Sunny Central 7,165 lbs.

(3,250 kg)

5.1.3 Ambient Conditions

• The installation location must be accessible at all times.

• The ambient temperature must be between -13 °F and +122 °F (–25 °C and +50 °C).

• Direct PV irradiation reduces the output power of the Sunny Central.

22 SC500U-IUS093411 Installation Guide

SMA Solar Technology AG

• For installing the Sunny Central in closed rooms an air supply of 2090 CFM (3,550 m³ /h) is needed.

• For more information see section 13 "Technical Data" (page69).

5.1.4 Minimum Clearance

Observe the specified minimum clearances for the cables, ventilation and for opening the doors. For installing the Sunny Central in closed rooms an air supply of 2090 CFM (3,550 m³ /h) is needed.

16 in.

S t o p S t a

r t

6 in.

47 in.

6 in.

47 in.

Position Cables inserted from ... Minimum clearance

A below 6 in. (15 cm) B the side 47 in. (120 cm)

5.1.5 Characteristics of the Base

• The foundation must be made of concrete.

• The mounting surface must be level and strong enough to support the weight of the inverter. The

S t o p S t a

evenness of the foundation must be less than

0.25 %.

• T he wid th a nd dep th o f the b ase must b e at lea st the same size as the Sunny Central.

• To insert the cables from below, the cable conduits must be laid in the foundation (see section

6.2 "Insert cables from below into the Sunny Central" (page36)).

min. 145 in.

min. 40 in.

Installation Guide SC500U-IUS093411 23

+ 53 hidden pages