SMA SUNNY BOY 8000-US User manual

SB50US-80US-IA-en-36 | TBUS-SB50_60_70US | Version 3.6
CA
US
PV Inverter
SUNNY BOY 5000-US / 6000-US / 7000-US / 8000-US
Installation Manual

SMA America, LLC Legal Restrictions
Installation Manual SB50US-80US-IA-en-36 3
Copyright © 2011 SMA America,LLC. All rights reserved.
No part of this document may be reproduced, stored in a retrieval system, or transmitted, in any form
or by any means, electronic, mechanical, photographic, magnetic or otherwise, without the prior
written permission of SMA America,LLC.
Neither SMA America,LLC nor SMA Solar Technology Canada Inc. makes 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,LLC nor
its distributors or dealers nor SMA Solar Technology Canada Inc. 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,LLC and SMA Solar Technology Canada Inc. reserve 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.
All trademarks are recognized even if these are not marked separately. Missing designations do not
mean that a product or brand is not a registered trademark.
The Bluetooth® word mark and logos are registered trademarks owned by Bluetooth SIG, Inc. and
any use of such marks by SMA America,LLC and SMA Solar Technology Canada Inc. is under
license.
SMA America, LLC
3801 N. Havana Street
Denver, CO 80239 U.S.A.
SMA Solar Technology Canada Inc.
2425 Matheson Blvd. E, 8th Floor
Mississauga, ON L4W 5K5, Canada

Important Safety Instructions SMA America, LLC
4 SB50US-80US-IA-en-36 Installation Manual
IMPORTANT SAFETY INSTRUCTIONS
SAVE THESE INSTRUCTIONS
This manual contains important instructions for Sunny Boy inverter, that must be followed during
installation and maintenance of the inverter.
The Sunny Boy 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 Boy. To reduce the risk of personal injury and to ensure the safe installation and
operation of the Sunny Boy, you must carefully read and follow all instructions, cautions and warnings
in this installation guide.
Warnings in this document
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 is used to address practices not related to personal injury.

SMA America, LLC Important Safety Instructions
Installation Manual SB50US-80US-IA-en-36 5
Other symbols in this document
In addition to the safety and hazard symbols described on the previous pages, the following symbol
is also used in this installation guide:
Markings on this product
The following symbols are used as product markings with the following meanings.
Information
This symbol accompanies notes that call attention to supplementary information that you
must know and use to ensure optimal operation of the system.
Warning regarding dangerous voltage
The product works with high voltages. All work on the product must only be performed
as described in the documentation of the product.
Beware of hot surface
The product can become hot during operation. Do not touch the product during
operation.
Observe the operating instructions
Read the documentation of the product before working on it. Follow all safety
precautions and instructions as described in the documentation.
This inverter is evaluated to UL 1741, which includes assessment to all of the
requirements of IEEE1547 and IEEE1547.1, which are an outgrowth and further
development of the IEEE recommended practices and guidelines contained in IEEE Std.
929-2000. IEEE 929-2000 provides recommendations regarding the proper equipment
and functionality necessary to ensure compatible operation when power generation is
connected to the utility grid. The inverter is additionally evaluated to the
NationalElectricalCode® and the Canadian Electrical Code® CSA C22.2 No.
107.1‑1.

General Warnings SMA America, LLC
6 SB50US-80US-IA-en-36 Installation Manual
General warnings
General warnings
All electrical installations must be done in accordance with the local and
NationalElectrical Code® ANSI/NFPA 70 or the Canadian Electrical Code®
CSAC22.1. This document does not and is not intended to replace any local, state,
provincial, federal or national laws, regulation or codes applicable to the installation and
use of the inverter, including without limitation applicable electrical safety codes. All
installations must conform with the laws, regulations, codes and standards applicable in
the jurisdiction of installation. SMA assumes no responsibility for the compliance or
noncompliance with such laws or codes in connection with the installation of the inverter.
The Sunny Boy contains no user-serviceable parts except for the fans on the bottom of the
enclosure and the filters behind the fans as well as the handle covers on the sides of the
unit. For all repair and maintenance, always return the unit to an authorized SMA Service
Center.
Before installing or using the Sunny Boy, read all of the instructions, cautions, and warnings
on the Sunny Boy in this installation guide.
Before connecting the Sunny Boy to the electrical utility grid, contact the local utility
company. This connection must be made only by qualified personnel.
Wiring of the Sunny Boy must be made by qualified personnel only.

SMA America, LLC Table of Contents
Installation Manual SB50US-80US-IA-en-36 7
Table of Contents
1 Information on this Manual. . . . . . . . . . . . . . . . . . . . . . . . 11
1.1 Validity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
1.2 Target Group . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
1.3 Storing the Documentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
1.4 Additional Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
1.5 Nomenclature. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
2 Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
2.1 Intended Use. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
2.2 Safety Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
2.3 Installation Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
3 Unpacking and Inspection. . . . . . . . . . . . . . . . . . . . . . . . . 16
3.1 Scope of Delivery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
4 AC Voltage Configuration . . . . . . . . . . . . . . . . . . . . . . . . . 17
4.1 Opening the Sunny Boy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
4.2 Locating Internal Component Parts . . . . . . . . . . . . . . . . . . . . . . 18
4.3 AC Voltage Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
4.4 Jumper for System Configuration . . . . . . . . . . . . . . . . . . . . . . . 22
5 Assembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
5.1 Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
5.2 Requirements for the Mounting Location. . . . . . . . . . . . . . . . . . 25
5.3 Mounting with Wall Mounting Bracket. . . . . . . . . . . . . . . . . . . 27
5.3.1 Possibilities for Mounting the Wall Mounting Bracket. . . . . . . . . . . . . . . . . . 29
5.3.2 Mounting the Wall Mounting Bracket. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
5.4 Mounting the DC Disconnect . . . . . . . . . . . . . . . . . . . . . . . . . . 30
5.4.1 Mounting the DC disconnect. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
5.4.2 Mounting the Sunny Boy on a Wall Mounting Bracket . . . . . . . . . . . . . . . . 33

Table of Contents SMA America, LLC
8 SB50US-80US-IA-en-36 Installation Manual
6 Electrical Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
6.1 Connection Area of the Sunny Boy. . . . . . . . . . . . . . . . . . . . . . 36
6.2 Sunny Boy Circuit Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
6.2.1 Wiring with DC disconnect . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
6.3 Opening the Sunny Boy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
6.4 Opening the DC Disconnect. . . . . . . . . . . . . . . . . . . . . . . . . . . 40
6.5 AC Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
6.5.1 AC Connection Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
6.5.2 AC Connection in the DC Disconnect . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
6.5.3 Connecting the AC Cables in the Sunny Boy . . . . . . . . . . . . . . . . . . . . . . . . 44
6.6 DC Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
6.6.1 DC Connection Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
6.6.2 DC Input Grounding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
6.6.3 Connecting the DC Cables in the DC disconnect . . . . . . . . . . . . . . . . . . . . . 49
6.6.4 DC Connection with Additional DC Distribution . . . . . . . . . . . . . . . . . . . . . . 54
6.7 Communication. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
6.8 Closing the Sunny Boy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
6.9 Closing the DC Disconnect . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
7 Commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
7.1 Switching On the Sunny Boy . . . . . . . . . . . . . . . . . . . . . . . . . . 58
7.2 The Sunny Boy Does Not Resume Operation. . . . . . . . . . . . . . 59
8 Displays and Messages. . . . . . . . . . . . . . . . . . . . . . . . . . . 62
8.1 LED Operation Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
8.2 LED Fault Indicators. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
8.3 Status Messages on the LCD Display . . . . . . . . . . . . . . . . . . . . 69
8.4 Setting the Display Language . . . . . . . . . . . . . . . . . . . . . . . . . . 71
8.5 Measuring Channels and Parameters. . . . . . . . . . . . . . . . . . . . 71
8.5.1 Measurement Channels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
8.5.2 Operating Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73

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Installation Manual SB50US-80US-IA-en-36 9
8.5.3 Operating Parameters of the Sunny Boy. . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
8.5.4 Operating Parameters of the Sunny Boy. . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
8.5.5 Fixed Operating Parameters of the Sunny Boy . . . . . . . . . . . . . . . . . . . . . . . 76
9 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
9.1 General. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
9.2 Error Messages. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
10 Maintenance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
10.1 Cleaning the Fans . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
10.2 Cleaning the Handle Covers . . . . . . . . . . . . . . . . . . . . . . . . . . 82
10.3 Checking the DC Disconnect . . . . . . . . . . . . . . . . . . . . . . . . . . 82
10.4 Fan Test. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
10.5 Exchanging the Fuses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
10.5.1 Exchanging the GFDI Fuse within the Sunny Boy . . . . . . . . . . . . . . . . . . . . . 85
10.5.2 Exchanging PV String Fuses within the DC disconnect . . . . . . . . . . . . . . . . . 86
10.6 Testing and Replacing the DC Varistors . . . . . . . . . . . . . . . . . . 88
11 Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91
11.1 Sunny Boy 5000-US (SB 5000US and SB 5000US-12). . . . . 91
11.2 Sunny Boy 6000-US (SB 6000US and SB 6000US-12). . . . . 93
11.3 Sunny Boy SB 7000-US (SB 7000US and SB 7000US-12) . . 95
11.4 Sunny Boy SB 8000-US (SB 8000US and SB 8000US-12) . . 97
11.5 DC Disconnect . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99
11.6 Trip Limits/Trip Times. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100
11.7 Torque Values and Cable Sizes . . . . . . . . . . . . . . . . . . . . . . . 101
12 Spare Parts and Accessories . . . . . . . . . . . . . . . . . . . . . . 101
13 Compliance Information . . . . . . . . . . . . . . . . . . . . . . . . . 102
14 Contact . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103