SMA SUNNY BOY 1100 User manual

PV Inverter
SUNNY BOY 1100 / 1700
Installation Guide
SB11_17-IEN084820 | IMEN-SB11_17 | Version 2.0 EN

SMA Solar Technology AG Table of Contents
Installation Guide SB11_17-IEN084820 3
Table of Contents
1 Notes on this Manual. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.1 Validity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.2 Target Group . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.3 Additional Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.4 Symbols Used . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2 Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.1 Appropriate Usage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.2 Safety Precautions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
3 Unpacking. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
3.1 Packing List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
3.2 Identifying the Sunny Boy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
4 Mounting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
4.1 Selecting the Mounting Location. . . . . . . . . . . . . . . . . . . . . . . . 10
4.1.1 Safety Clearances. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
4.1.2 Position . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
4.2 Mounting Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
5 Electrical Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
5.1 Overview of the Connection Area . . . . . . . . . . . . . . . . . . . . . . 14
5.1.1 View from Below. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
5.1.2 View from Inside . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
5.2 Connecting the PV Generator (DC) . . . . . . . . . . . . . . . . . . . . . 16
5.3 Connecting the Public Grid (AC) . . . . . . . . . . . . . . . . . . . . . . . 19
5.4 Setting the Display Language . . . . . . . . . . . . . . . . . . . . . . . . . . 24
5.5 Communication. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Table of Contents SMA Solar Technology AG
4SB11_17-IEN084820 Installation Guide
6 Commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
6.1 Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
6.2 Blink Codes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
7 Opening and Closing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
7.1 Opening the Sunny Boy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
7.2 Closing the Sunny Boy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
8 Maintenance and Cleaning. . . . . . . . . . . . . . . . . . . . . . . . 33
8.1 Cleaning the Cooling Fins. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
8.2 Checking the Electronic Solar Switch for Wear . . . . . . . . . . . . 33
9 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
9.1 The Red LED is Continuously on . . . . . . . . . . . . . . . . . . . . . . . . 34
9.1.1 Checking the PV Generator for Ground Fault. . . . . . . . . . . . . . . . . . . . . . . . 34
9.1.2 Checking the Function of the Varistors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
10 Decommissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
10.1 Disassembling the Sunny Boy . . . . . . . . . . . . . . . . . . . . . . . . . . 38
10.2 Packaging the Sunny Boy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
10.3 Storing the Sunny Boy. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
10.4 Disposing of the Sunny Boy . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
11 Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
12 Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
13 Contact . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

SMA Solar Technology AG Notes on this Manual
Installation Guide SB11_17-IEN084820 5
1 Notes on this Manual
This manual describes how to mount, install, commission and service the Sunny Boy 1100 (SB 1100)
and Sunny Boy 1700 (SB 1700). Store this manual where it will be accessible at all times.
1.1 Validity
This manual is valid for the Sunny Boy 1100 and Sunny Boy 1700.
1.2 Target Group
This manual is for qualified personnel. The tasks described in this manual may only be performed by
qualified personnel.
1.3 Additional Information
You will find further information on special topics such as designing a line circuit breaker or the
description of the operating parameters in the download area at www.SMA.de.
Refer to the user manual for detailed information on troubleshooting and operating the Sunny Boy.

Notes on this Manual SMA Solar Technology AG
6SB11_17-IEN084820 Installation Guide
1.4 Symbols Used
The following types of safety instructions and general information appear in this document as
described below:
G
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.
Information
Information provides tips that are valuable for the optimal installation and operation of
your product.

SMA Solar Technology AG Safety
Installation Guide SB11_17-IEN084820 7
2 Safety
2.1 Appropriate Usage
The Sunny Boy is a PV inverter, which converts the DC current of the PV generator to AC current and
feeds it into the public grid.
Principle of a PV system with this Sunny Boy
The Sunny Boy may only be operated with PV generators (modules and cabling) of protection class
II. Do not connect any sources of energy other than PV modules to the Sunny Boy.
When designing the PV system, ensure that the values comply with the permitted operating range of
all components at all times. The free design program "Sunny Design"
(www.SMA.de/en/SunnyDesign) will assist you. The manufacturer of the PV modules must have
approved the modules for use with this Sunny Boy unit. You must also ensure that all measures
recommended by the module manufacturer for long-term maintenance of the module properties are
taken (see also Technical Information "Module Technology", in the download area of www.SMA.de).
Do not use the Sunny Boy for purposes other than those described here. Alternative uses,
modifications to the Sunny Boy or the installation of components not expressly recommended or sold
by the manufacturer void the warranty claims and operation permission.

Safety SMA Solar Technology AG
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2.2 Safety Precautions
DANGER!
Danger to life due to high voltages in the Sunny Boy!
• All work on the Sunny Boy must be carried out exclusively by qualified personnel.
CAUTION!
Danger of burn injuries due to hot housing parts!
• Do not touch the housing of the Sunny Boy during operation.
NOTICE!
Foreign objects or water entering the Sunny Boy can damage the device!
Once the Electronic Solar Switch has been pulled out, the Sunny Boy only provides
protection degree IP21. The Sunny Boy is then no longer protected against water and
contamination with dirt!
If the device has been temporarily decommissioned, proceed as follows to restore the IP65
protection rating:
• Unplug all DC plug connectors and seal them with the protecting caps provided.
• Attach the Electronic Solar Switch again.
Grounding the PV generator
Comply with the local requirements for grounding the modules and the PV generator.
SMA Solar Technology recommends connecting and grounding the generator frame and
other electricity conducting surfaces in such a way that there is continuous conduction and
grounding in order to achieve maximum protection for systems and persons.

SMA Solar Technology AG Unpacking
Installation Guide SB11_17-IEN084820 9
3 Unpacking
3.1 Packing List
Check the delivery for completeness and for visible external damage, such as cracks in the housing
or in the display. If something is missing or damaged, contact your dealer.
3.2 Identifying the Sunny Boy
You can identify the Sunny Boy using the type label. The type label is on the right side of the housing.
The type (Type/Model) and the serial number (Serial No.) of the Sunny Boy can be found on the type
label, among other things.
Object Quantity Description
A1Sunny Boy
B1 Wall mounting bracket
C1 Electronic Solar Switch (ESS)
D1Set of documents
E2 1 installation guide, 1 user manual
Contents of accessories bag
F1 Socket element
G1 Threaded sleeve
H1 Pressure screw for PG13.5
I1 Sealing ring for PG13.5
J1 Fastening case for PG13.5
K1 PG16 pressure screw for large cable cross-sections
L2 Protecting caps for DC connector
M1 Protecting cap for AC screw clamp
N1 M6 x 12 cylinder head screw
O2 Polyamid M5 washer (as substitute for cover)
P1Jumper

Mounting SMA Solar Technology AG
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4 Mounting
4.1 Selecting the Mounting Location
Take the following conditions into account during mounting
• The mounting location and mounting method must be suitable for the weight and dimensions
(see section11 „Technical Data“ (39)) of the Sunny Boy.
• Mount on a solid surface.
• The mounting location must be accessible at all times.
• The Sunny Boy must be easy to remove from the mounting location at any time.
• The ambient temperature should be below +40 °C to guarantee optimal operation.
• Do not expose the Sunny Boy to direct sunlight, so as to avoid power reduction due to excessive
heating.
• In a living area, do not mount the unit on
plasterboard walls (or similar) in order to avoid
audible vibrations.
The Sunny Boy can make noises when in use which
can be regarded as a nuisance when installed in a
living area.
DANGER!
Danger to life due to fire or explosion!
Despite careful construction, a fire can occur with electrical devices.
Do not install the Sunny Boy
• on flammable construction materials,
• in areas where highly flammable materials are stored,
• in potentially explosive areas!
CAUTION!
Danger of burn injuries due to hot housing parts!
• Mount the Sunny Boy in such a way that it cannot be touched inadvertently during
operation.
CAUTION!
Risk of injury due to the heavy weight of the Sunny Boy!
• Take the Sunny Boy's weight of 25 kg into account for mounting.

SMA Solar Technology AG Mounting
Installation Guide SB11_17-IEN084820 11
4.1.1 Safety Clearances
Observe the following minimum clearances to walls, other devices or objects to guarantee sufficient
heat dissipation and enough space for removing the Electronic Solar Switch.
4.1.2 Position
• Vertical installation or tilted backwards by max. 45°.
• Never install the device with a forward tilt.
• Do not install horizontally.
• Install at eye level to allow operating modes to be read.
Direction Minimum Clearances
Sides 20 cm
Top 20 cm
Bottom 50 cm
Front 5 cm
min. 45°

Mounting SMA Solar Technology AG
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4.2 Mounting Instructions
1. Use the wall mounting bracket as a drilling template and mark the position of the drill holes.
2. Attach the wall mounting bracket to the wall using suitable screws and washers.
For vertical installation and installation on solid
concrete or block walls, for example, you can fit the
wall mounting bracket using 6 mm x 50 mm
hexagon bolts to DIN 571 standard, stainless steel
type, and with wall anchors of type SX 8.
CAUTION!
Risk of injury due to the heavy weight of the Sunny Boy!
• Take the Sunny Boy's weight of 25 kg into account.
Mounting material
Attach the wall mounting bracket with the corresponding mounting material (depending on
the surface).

SMA Solar Technology AG Mounting
Installation Guide SB11_17-IEN084820 13
3. Hang the Sunny Boy with its upper mounting plates
in the wall mounting bracket so that a lateral
shifting from the wall mounting bracket is not
possible.
4. Secure the Sunny Boy against lifting by tightening
the M6 x 12 screw included in the accessories bag.
5. Check that the unit is securely in place.
☑ The Sunny Boy is now mounted on the wall.

Electrical Connection SMA Solar Technology AG
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5 Electrical Connection
5.1 Overview of the Connection Area
5.1.1 View from Below
The following figure shows the assignment of the individual enclosure openings on the bottom of the
Sunny Boy.
NOTICE!
Electrostatic discharges can damage the Sunny Boy!
Internal components of the Sunny Boy can be irreparably damaged by static discharge.
• Ground yourself before you touch a component.
Object Description
APlug connectors for connecting the PV strings
BSocket for the connection of the Electronic Solar Switch (ESS) DC load
disconnection unit
CCable opening for communication with seal plugs
DCable opening for AC connection

SMA Solar Technology AG Electrical Connection
Installation Guide SB11_17-IEN084820 15
5.1.2 View from Inside
The following diagram gives a schematic overview of the various components and connection points
inside the Sunny Boy with the cover removed:
Object Description
AVaristors, section 9.1.2
BSlot for communication (RS 485, radio), section 5.5
CDisplay
DPE (protective earth) connecting cable for cover
EOperating status LEDs
FJumper slot for communication
GPlug socket (AC), section 5
HTab for grounding the cable shield with RS485 communication
IElectronic Solar Switch (ESS) socket
JPV input plugs (DC), section 5.2

Electrical Connection SMA Solar Technology AG
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5.2 Connecting the PV Generator (DC)
• Requirements for the modules of the connected strings:
– same type
– same number
– identical alignment
– identical tilt
• The connection cables of the PV modules must be equipped with plug connectors so that the
Sunny Boy's DC plug connectors can be connected to them.
A pre-assembled set for the free cable ends of a string is available as an optional accessory. The SMA
order codes for the various connectors can be found in section 12 „Accessories“ (43).
• The following limit values at the DC input of the Sunny Boy may not be exceeded:
The complete wiring for a Sunny Boy is shown schematically in the following figure:
Interruption of the current flow
When using distributor connectors (Y connectors), ensure that these are not visible or
accessible so that the DC circuit cannot be interrupted with these.
The current flow must always be interrupted beforehand via the Electronic Solar Switch.
• Always unplug the Electronic Solar Switch (ESS) in order to interrupt the current flow.
Inverter Maximum input voltage Maximum input current
SB 1100 400 V (DC) 10 A (DC)
SB 1700 400 V (DC) 12.6 A (DC)
AC connection, max. 2.5 mm²
String 1
String 2

SMA Solar Technology AG Electrical Connection
Installation Guide SB11_17-IEN084820 17
Connection Procedure
1. Remove the Electronic Solar Switch on the
underside of the Sunny Boy.
2. Check the connection cables of the PV modules for the correct polarity and compliance with the
maximum input voltage of 400 V (DC).
3. Check strings for ground faults as described in
section 9.1.1 „Checking the PV Generator for
Ground Fault“ (34).
DANGER!
Danger to life due to high voltages on the Sunny Boy!
• Before connecting the PV generator, ensure that the line circuit breaker is switched
off.
NOTICE!
Exceeding the maximum input voltage can destroy the Sunny Boy!
If the voltage of the PV modules exceeds the maximum input voltage of the Sunny Boy, it
can be destroyed by the overvoltage. All warranty claims become void.
• Do not connect strings to the Sunny Boy with open circuit voltage greater than the
maximum input voltage of the Sunny Boy.
• Check the system design.
DANGER!
Risk of lethal electric shock!
• Do not connect any strings in which you have detected a ground fault!
PE

Electrical Connection SMA Solar Technology AG
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4. Connect the faultless strings of the PV generator.
5. Seal the unused DC input sockets with the provided
protecting caps.
6. Reinsert the Electronic Solar Switch in the socket on
the underside of the Sunny Boy.
NOTICE!
Manipulating the connector in the handle can damage the Electronic Solar Switch!
The connector within the handle must remain movable in order to ensure proper contact.
Tightening the screw voids all warranty claims and creates a fire risk.
•Do not tighten the connector screw in the Electronic Solar Switch handle.
NOTICE!
The Electronic Solar Switch can be damaged if it is inserted incorrectly!
The Electric Solar Switch can be damaged by high voltage if it has not been attached
properly.
• Press the handle firmly into place on the socket of the Electronic Solar Switch until it
audibly locks into place.
• Check that the handle is securely in place.
+-+-

SMA Solar Technology AG Electrical Connection
Installation Guide SB11_17-IEN084820 19
5.3 Connecting the Public Grid (AC)
Cable Design
The cable cross section should be sized using the "Sunny Design" design program (www.SMA.de) so
that line losses do not exceed 1 % at nominal power.
The Sunny Boy 1100 and 1700 must be connected with a cable cross section of at least 1.5 mm².
The cable cross-section required in an individual case depends on factors such as ambient
temperature, type of cable installation, and line losses and must be selected according to the valid
installation guidelines of the respective country (of the installation location).
The maximum cable lengths related to the cable cross section are presented in the following table.
Cable Requirements
Connection requirements of the grid operator
Always observe the connection requirements of your grid operator!
Cable cross section Maximum cable length
SB 1100 SB 1700
1.5 mm² 21 m 15 m
2.5 mm² 35 m 22.5 m
omax. 2,5 mm²
9 ... 17 mm
External diameter Wire cross section

Electrical Connection SMA Solar Technology AG
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Load Disconnection Unit
The maximal permissible rating is located in the technical data (page 39).
Load Disconnection Unit
Use only line circuit breakers as load disconnection units!
A screw type fuse, e.g., D system (Diazed) or D0 system (Neozed) is not a load
disconnection unit and therefore must not be used as one.
Upon disconnection under load, the screw type fuse element may be destroyed, or its
functionality may be inhibited by contact burning. It only acts as cable protection.
DANGER!
Danger to life due to fire!
When a generator (Sunny Boy) and a
consumer are connected to the same line
circuit breaker, the protective function of the
line circuit breaker is no longer guaranteed.
The current from the Sunny Boy and the grid
can add up to overcurrent which is not
detected by the line circuit breaker.
• Never connect loads unsecured between the Sunny Boy and the line circuit breaker.
• Always install separate fuses for loads.
Rating for a Line Circuit Breaker
Detailed information and examples concerning the rating of a line circuit breaker can be
found in the Technical Information "line circuit breaker" in the download area of SMA Solar
Technology at www.SMA.de.