Sunny Central 500U - Installation requirements - SMA

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Technical Information

Installation requirements for SUNNY CENTRAL 500U

1  Contents This document describes the requirements which have to be observed for the installation site of the Sunny Central 500U. The installation and the electrical connection of the Sunny Central are described in the installation guide.

SC500U-Auf-UUS092911

Version 1.1

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Technical Information

The Sunny Central‘s Design

2  The Sunny Central‘s Design The Sunny Central is divided into three sections.

A A B

Magnetics Cabinet: Control Cabinet:

C

Interface Cabinet:

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B

C

The Sunny Central's transformer is contained in the Magnetics Cabinet. The control cabinet contains the system control, the Sunny Display, the stop/start switch and the power unit for converting direct current to alternating current. All AC, DC and data cables are connected in the interface cabinet.

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Technical Information

Transport and Installation

3  Transport and Installation This section shows you how to find the best installation site for your Sunny Central.

3.1 Choosing the Installation Site

79.8 in.

Dimensions

139.

2 in.

6.6

3

in.

Weight Position A B C

A

Cabinet Magnetics Cabinet Control and Interface Cabinet Sunny Central

Weight 4,740 lbs. 2,425 lbs. 7,165 lbs.

B

C

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). • For installing the Sunny Central in closed rooms an air supply of 6,000 m³ /h is needed. • Direct solar irradiation reduces the output power of the Sunny Central.

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Technical Information

Transport and Installation

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 6,000 m³ /h is needed.

16 in.

Stop

Start

6 in.

6 in.

A 6 in. 47 in.

Position A B

Cables inserted from ... below the side

B

47 in.

Minimum clearance 6 in. 47 in.

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 evenness of the foundation must be less than 0.1 in. per meter. • The width and depth of the base must be at least the same size as the Sunny Central.

min. 1 45

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in.

n. 0i 4 . min

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Technical Information

Transport and Installation

• To insert the cables from below, the cable conduits must be laid in the foundation.

3.2 Preparation of the Base The inverter must be secured to the foundation per local building codes. At the bottom of the Sunny Central there are 12 mounting holes for anchoring it to its base.

Position of the Mounting Holes 7.9 in.

31.1 in.

4.1 in.

40.3 in.

12.5 in.

47.1 in.

29.4 in.

Size of the Mounting Holes 0.5 in.

1.4 in.

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Attaching the Conduits

4  Attaching the Conduits The DC cables, the AC cables and the communication cables can be routed into the Sunny Central‘s interface cabinet from the right or from below. The two options are described below.

Insert Cables From the Right Into the Sunny Central Insert the DC cables, the AC cables and the data cables into the Sunny Central from the right. A metal sheet is attached to the Sunny Central for this purpose.

Right figure: Example of how the holes for the conduits are arranged.

C

A

A

A

B

A

A

A

B

A

A

A

• A: Conduit for DC cable. • B: Conduit for AC cable. • C: Conduit for communication cable.

Insert cables from below into the Sunny Central Insert the DC cables, the AC cables and the data cables into the Sunny Central from the bottom through the foundation.

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Technical Data

5  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.

Solar Generator Connection Data DC input voltage Input voltage, MPP range

300 ... 600 V DC 300 ... 330 V DC at reduced power

DC starting voltage Max. input current DC voltage ripple (peak to peak)

330 ... 600 V DC at full power 400 V DC (adjustable) 1,600 A 0.99 at nominal power