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SUNNY BOY 2000HF‑US/2500HF‑US/3000HF

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1. 7 PV plant into terminal B 8 If there is a grounding electrode conductor plug the grounding electrode conductor into terminal A D A 9 Verify that all connections are correctly wired and L a properly torqued Pull the cables in order to make oe sure that they are sufficiently fixed 5 M The Sunny Boy is connected on the DC side ready to ground the PV plant negatively The grounded conductor may be color coded in accordance with the il National Electrical Code article 200 Use electricians tape for coding the grounded conductor SB20_25_30HFUS eng IlUS1 13711 Installation Guide 47 Wiring the Sunny Boy SMA America LLC DC connection with a positively grounded PV plant If your PV plant requires positive grounding connect the cables of the PV strings and the DC cable of the Sunny Boy to the terminal block in the following way Using DC Terminal blocks Connect the wires to the DC terminal block as described in section 12 7 1 Connect wires to DC terminal block page 100 Connecting the Sunny Boy on the DC side 1 Connect the positive inverter wire red wire of the Sunny Boy to the terminal B 2 Connect the negative inverter wire black wire of the Sunny Boy to the terminal C Connecting the PV strings 3 Connect the positive DC wires of the PV strings with
2. 80 SB20_25_30HFUS eng IUS11371 1 Installation Guide SMA America LLC Maintenance and cleaning NOTICE Destruction of the inverter due to overvoltage If varistors are missing or damaged the inverter is not protected against overvoltages e Procure replacement varistors as soon as possible and replace the defective varistors immediately Do not operate inverters with faulty varistors or without varistors Use AC varistor replacement kit from SMA only See section Accessories Seite 108 for the order number Arrangement of the varistors Arrange the varistors as shown in the figure 4 Insert the insertion tool into the openings of the ra Fa terminal contacts 1 The terminal clamps loosen 5 Remove the varistor 2 6 Insert a new varistor 3 f 7 Close the DC Disconnect as described in section 8 3 Closing the SMA DC Disconnect page 67 T 8 Commission the Sunny Boy see section 7 Commissioning page 63 f Installation Guide SB20_25_30HFUS eng IUS113711 81 Messages SMA America LLC 10 Messages 10 1 Green LED is lit or flashes Green LED is lit e Ifthe green LED is lit the Sunny Boy is in feed in operation Green LED is flashing e If the green LED flashes over a long period this can mean that there is not sufficient DC voltage available No display in the event of in
3. 4 Pull the handle of the fan bracket carefully downwards until the fan bracket is pulled out of its guide rail M The fan and fan bracket are removed NOTICE Damage to the fan during cleaning with compressed air e For cleaning the fan only use a soft brush a paint brush or a damp cloth Installation Guide SB20_25_30HFUS eng IUS11371 1 7 Maintenance and cleaning SMA America LLC 5 Clean the fan with a soft brush a paint brush or a damp cloth 6 Insert the fan and the fan bracket into the guide rail and push upwards 7 Plug the fan plug into the socket A click sound can be heard by propper connection Pull the fan plug slightly to ensure proper connection 8 Close SMA DC Disconnect see section 8 3 Closing the SMA DC Disconnect page 67 9 Commission the Sunny Boy see section 7 Commissioning page 63 Mi The fan has been cleaned 72 SB20_25_30HFUS eng IUS11371 1 Installation Guide SMA America LLC Maintenance and cleaning 9 1 2 Checking the Fan Checking the Fan In order to check the fan you need a special data acquisition device e g Sunny WebBox or a PC with the appropriate software e g Sunny Explorer in order to be able to change the parameters of the Sunny Boy You will also need the installer password to access the installer mode Request the installer password from the SMA Service Line contact info see page 109 2 Set the
4. 54 Cantare Crouid na Prane e e Ea 56 Parameter Module grounding prescribed or GndMdt 56 a EENE EE EE 57 Paranisier Piesa bed orouidno ne or Ma end Mode ecean 58 Wiring MeAC Oulputeccccadecesssenedbddd eiaa 6058 59 AC connection safety requirements 00 0 59 Connecting the Sunny Boy on the AC side 10 0 cee eee 60 Closing the SMA DC Disconnect 00000 e eae 62 COMMISSIONING 554425444 444 04 4445403644 044085 63 Opening and closing ceceececeececeaee 65 Disconnect the Sunny Boy from Voltage Sources 65 Open SMA DG Disconnedt c23 lt 2222decceensoeeh65 Laws 66 Closing the SMA DC Disconnect 00 000 e eae 67 SB20_25_30HFUS eng 1US1 13711 Installation Guide SMA America LLC Table of Contents 8 4 8 4 1 8 4 2 9 9 1 9 1 1 9 1 2 9 2 9 3 9 3 1 9 3 2 9 4 10 10 1 10 2 10 3 11 11 1 11 2 11 3 11 4 11 5 12 12 1 12 2 12 3 12 4 12 5 Lock Off function n on nnnnnaaa nananana 68 Secure Sunny Boy against reconnection 0 0cc0eee eee e eee 68 Unlocking and switching on the Sunny Boy 0 00 cee eee 69 Maintenance and cleaning eeeeeeeees 70 Checking Heat Dissipation 0 0 cece eee eee 70 E S TEE E NEE 71 e a E EET 73 Checking the SMA DC Disconnect 0 00000 a ee 74 Exchanging USES stccashannkeorosueeadeseecad teens 74 E CHANGING SIMA Plugin Cronin FUSS o EREN 74 Rep
5. 96 SB20_25_30HFUS eng IUS11371 1 Installation Guide SMA America LLC Decommissioning Removing cables of the PV strings from the DC side of the DC Disconnect with optional string fuses WARNING Danger of short circuit Voltage may be present at the DC cables of the PV plant Do not short circuit the cables e Insulate the DC and DC cable in such way that they do not have contact e Pull out the cables out of the enclosure only after they have been separately insulated Using DC Terminal blocks Disconnect the wires to the AC terminal block as described in section 12 7 3 Disconnect wires from AC terminal block page 102 1 Remove cables of the PV string from the terminals A 2 Remove the cables of the PV string connected to the screw clamps B Loosen the screws of the screw clamps B counterclockwise Pull the cables from the screw clamps B 3 Remove the cables of the PV string connected to the ungroun ded screw clamps C Loosen the screws of the screw clamps C counterclockwise One and Two Si for more strings and f mam GO gt Pull the cables from the screw clamps C 4 Pull the cables of the PV string the grounding cable of the PV plant an
6. Loosen the screws of the upper terminal of the fuses yooo A in a counterclockwise direction For each additional wire Feed in the wire from above into the terminal of a fuse holder A Tighten the terminal screw clockwise Connect two of the additional wires to the terminals D Connect the third additional wire to screw clamp E Completely open the screw terminal counterclockwise Feed in the wire from below into the screw terminal Tighten the screw clamp clockwise Connect two of the negative DC wires of the PV strings to the terminals H Connect the third negative DC wire of the PV strings to screw terminal F Completely open the screw clamp counterclockwise Feed in the wire from below into the screw terminal Tighten the screw clamp clockwise Plug the equipment grounding conductor of the PV plant into terminal B If there is a grounding electrode conductor plug the grounding electrode conductor into terminal A O C o fee 2 UNGROUNDED ED GROUNDED D Terminal A A GROUNDED E Verify that all connections are correctly wired and properly clamped or torqued Pull the cables in order to make sure that they are sufficiently fixed The Sunny Boy is connected on the DC side ready to ground the PV plant negatively
7. CoolSys FanTst parameter to on in the installer mode using a communications device e g Sunny WebBox Sunny Explorer 3 Check the air flow of the fan The Sunny Boy takes cooling air in from underneath and then blows it out through the cooling fans Listen for any unusual noise which could indicate incorrect installation or that the fans are faulty 4 After the test set the parameter CoolSys FanTst back to position Off M The fan has been checked Installation Guide SB20_25_30HFUS eng IUS11371 1 73 Maintenance and cleaning SMA America LLC 9 2 Checking the SMA DC Disconnect When used appropriatly the SMA DC Disconnect does not need maintenance It is recommended though not compulsory to e Check the SMA DC Disconnect regularly e Operate the SMA DC Disconnect once a year 10 times Operating the switch will clean the contacts of the SMA DC Disconnect 9 3 Exchanging fuses 9 3 1 Exchanging SMA Plug in Grounding fuse SMA Plug in Grounding enables for array grounding and contains a fuse for Ground Fault Indication GFDI If a ground fault occurs the fuse in the SMA Plug in Grounding disconnects the fault current generated Once the ground fault is eliminated see section 11 1 Checking the PV array for Ground Fault page 88 you must replace the fuse of the SMA Plug in Grounding Dismantling and opening the SMA Plug in Grounding 1 Disconnec
8. Installation Guide SB20_25_30HFUS eng IUS11371 1 51 Wiring the Sunny Boy SMA America LLC DC connection with a positively grounded PV plant Connecting the Sunny Boy on the DC side Using DC terminal blocks Connect the wires to the DC terminal block as described in section 12 7 1 Connect wires Connecting the PV strings 3 52 to DC terminal block page 100 Connect the positive inverter wire red wire of the Sunny Boy to the terminal B Connect the negative inverter wire black wire of the Sunny Boy to the terminal C Remove the screwless end block from the top hat rail left of the DC terminal block Mount three fuse holders to the top hat rail Refer to section 14 Accessories page 108 fora specification of suitable fuse holders Ensure that fuses are installed in the fuse holders The fuses must be fully operative and of the correct size Refer to section 14 Accessories page 108 for a specification of suitable fuses If there are no functional fuses installed then install fully operative fuses Put the sticker delivered with the fuse holder plainly visible near by the fuse holder Loosen the screws of the lower terminals of the fuses G in a counterclockwise direction For each negative DC wire of the P
9. 38 B20_25_30HFUS eng IUS 113711 Installation Guide SMA America LLC Configuring the Sunny Boy 5 5 Disassembling the Quick Module l Disconnect the Sunny Boy from voltage sources see section 8 1 Disconnect the Sunny Boy from Voltage Sources page 65 Open the SMA DC Disconnect see section 8 2 Open SMA DC Disconnect page 66 Pull the Quick Module carefully downwards to the stopper M The Quick Module is completely visible Lay two thumbs on the upper edge of the Quick Module and carefully push the Quick Module downwards using your thumbs When the Quick Module is at the end of the bracket pull the lower edge of the Quick Module slightly forward M The Quick Module is loosened from its bracket Carefully take the Quick Module out of the bracket to the front The Quick Module is disassembled Installation Guide SB20_25_30HFUS eng IUS113711 39 Wiring the Sunny Boy SMA America LLC 6 Wiring the Sunny Boy This section provides step by step instructions and other information required for wiring the Sunny Boy to the PV array and the power distribution grid To complete the installation in a safe and efficient manner complete the steps in the order that they appear 6 1 Safety Q DANGER Inappropriate performing of the activities described in this manual Death or serious injuries All work on the Sunny Boy must only be carried out by qualified personnel Work on the Sunny Boy mu
10. i PV Inverter SUNNY BOY 2000HF US 2500HF US 3000HF US Installation Guide SB20_25_30HFUS eng IUS113711 IMUS SB20 30HFUS Version 1 1 CNOC JOQUINU JUBSAD PLC xa JUDAJ Pa DjsuI som Aog Auuns y aduis ul poy ABseue Ojo ABiaue Along jndjno jonpy amp 4 P A fa NS Ss uoojyuaa Jayeq p u yyBiu Aog uung e Jaquinu jusa Aog Auuns Aipssedeu j UD y uoa e BINJOIBdWA BAISSBDXO O BNP UOLJONPSl 1 MOd Jaquinu jusre ADJD Ad LZ7T7T71X Aite ly Aa4 uano jndyno aBpyoa pnd no uano yndul Anes puo skog Auung Jeyjo 04 UOYD8UUOS YJooyan g Anjdsip eur y yBnosuy Burydyimg sApp 9 sod y Jo s njoa Jemod jiop y Of sanoy u p994 9 sod y Jo s njoa Jamod y YBnosuy BuryMs UOHOUIWN punoiByooq y Buyoayoy p j seddn y uo Buyoouy aBoon ynduy YWS JODJUOD asDeld JNJ 29149 O 4e d0yD s QIIS UO PSAOWA 9G UND Oy aIN IOJ p y uo Burydouy Aq suop s Apjdsip y Buysyims sADp 9 sod Jo sunoy ul p994 9 sod y jo N B1 uU JO BAIN JAMO SMA America LLC Legal Restrictions 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 Neith
11. 15 Contact page 109 Internal device fault however the Sunny Boy continues to feed in lt Language table update not successful gt Internal device fault however the Sunny Boy continues to feed in 77 lt Self diagnosis gt e Contact the SMA Service Line see Divjascaraulks section 15 Contact page 109 lt Derating pending gt If this event occurs often The delivered power of the Sunny Boy was Ensure sufficient ventilation reduced below nominal power due to a e Check heat dissipation as described in section 9 1 Checking Heat Dissipation page 70 too high temperature for more than 10 minutes lt Changes to the grid parameters not e Check setting of the rotary switch see section 5 2 2 Configuration for Bluetooth communication page 34 programmed e Enter the Inst Code The selected rotary switch setting for the country configuration is not The parameters to be changed are protected lt Ensure DC supply gt The DC supply for the writing e Ensure that sufficient DC voltage is procedure is not sufficient available lt Inst Code invalid gt e Enter the valid Inst Code The Inst Code entered personal installer password is invalid lt Grid parameters locked gt e Enter the valid Inst Code for The actual country data set is locked changing the country data set lt Abort self test gt e Contact the SMA Service Line see section 15 C
12. 8 1 Disconnect the Sunny Boy from Voltage Sources 1 DANGER Electric shock due to improper opening of the SMA DC Disconnect Death resulting from burning and electric shock e Observe the sequence described here when opening the Sunny Boy e f problems occur when performing the work described here contact SMA Set the line circuit breaker on the AC side to position Off and secure against reconnection 2 Ifa multifunction relay is present disconnect the multi function relay power supply Turn the DC disconnect switch to position Off and On wait 5 minutes until the capacitors of the Sunny Boy are discharged all LEDs are off Installation Guide SB20_25_30HFUS engIUS113711 65 Opening and closing SMA America LLC 8 2 Open SMA DC Disconnect l DANGER High voltages inside the SMA DC Disconnect Death or serious injuries After opening the SMA DC Disconnect there are still high voltages inside the SMA DC Disconnect at the DC contacts of the DC terminal block and at the contacts of the DC switch e Do not touch contacts at the DC terminal block and on the DC switch 1 Turn and loosen the screws on the enclosure of the SMA DC Disconnect in a counterclockwise direction 2 Remove the lid to the front Lay the lid to one side in such a way that it will not become damaged M The SMA DCDisconnect is open 66 SB20_25_30HFUS eng IUS113711 Installation Guide SMA America LLC Opening and closing
13. 8 3 Closing the SMA DC Disconnect Recheck all your connections to ensure that everything is in the right place and that all connections and knockout fittings are secure and properly torqued Check all of the knockout fittings of the SMA DC Disconnect to ensure that they are in place 1 Check wire routing to ensure that no wires can interfere with proper sealing of the cover and that no pressure will be exerted on the connections when the cover is replaced 2 Carefully position the cover on the front of the SMA DC Disconnect Make sure that the switch handle snaps into place Make sure that the upper edge of the SMA DC Disconnect is covered by the lower edge of the Sunny Boy Make sure that the two screws in the cover are aligned correctly with the two threaded holes in the enclosure 3 While holding the cover in place insert the two screws into the threaded holes in the enclosure and turn them until they are hand tight Be careful not to cross thread any of the screws Do not use power tools to fasten the screws Verify that the cover is in the correct position 5 Tighten the cover screws to a torque of 53 in lbs 6 Nm VJ The SMA DC Disconnect is closed Installation Guide SB20_25_30HFUS eng IUS11371 1 67 Opening and closing SMA America LLC 8 4 Lock Off function During work on the PV modules in your PV plant you must switch the Sunny Boy off and secure against reconnection The Lock Off f
14. Le Positive Grounding GROUNDED UNGROUNDED GROUNDED UNGROUNDED GROUNDED Terminal GROUNDED Facing Openings for DC cable HH Top hat rail for optional string fuses Installation Guide Description DC side terminals Connection point grounding Sunny Boy SMA DC Disconnect AC side terminals Opening for AC cable Connector for fan power supply DC Disconnect Switch SB20_25_30HFUS eng IUS11371 1 Wiring the Sunny Boy Wiring the Sunny Boy SMA America LLC AC Grounding The Sunny Boy must be connected to the AC ground from the utility via the Ground Terminals See illustration above C PV Grounding The PV array ground must be connected to the array grounding and DC Grounding Electrode Conductor see illustration on page 47 The size for the conductor is usually based on the size of the largest conductor in the DC system DC Grounding Electrode Conductor A DC grounding electrode conductor may be required by the Authority Having Jurisdiction AHJ Use the array grounding and DC Grounding Electrode Conductor see illustration on page 47 6 2 Lower view of the SMA DC Disco
15. a grounding electrode conductor plug the grounding electrode conductor into terminal A E 0 C O So see manual pi SAE ding Positive Grounding 2 UNGROUNDED ED GROUNDED D Terminal 4 GROUNDED Facing E M Verify that all connections are correctly wired and properly torqued Pull the cables in order to make sure that they are sufficiently fixed The Sunny Boy is connected on the DC side ready to ground the PV plant positively Installation Guide SB20_25_30HFUS eng IUS11371 1 53 Wiring the Sunny Boy SMA America LLC 6 6 Installation of the SMA Plug in Grounding SMA Plug in Grounding enables for array grounding and contains a fuse for Ground Fault Indication GFDI If a ground fault occurs the fuse in the SMA Plug in Grounding disconnects the fault current generated The type of grounding positive negative is coded into the grounding stick The SMA Plug in Grounding must be installed according to the desired array grounding before commissioning the Sunny Boy Q DANGER Danger of electric shock caused by damaged SMA Plug in Grounding Ifthe SMA Plug in Grounding is damaged water can enter into it Contact with high voltage possible Check Plug in Grounding before installation Do not install a damaged Plug in Grounding If the Plug in Grounding fell down a
16. have been replaced Installation Guide SB20_25_30HFUS eng IUS11371 1 79 Maintenance and cleaning SMA America LLC 9 4 Inspecting and changing the varistors Varistors are used to protect circuits against excessive transient voltages by incorporating them into the circuit in such a way that when triggered they will shunt the current created by the high voltage away from the sensitive components Varistors are designed according to the expected product use Their functionality may diminish with following repeated responses as a result of overvoltages It is therefore possible that one of the varistors has lost its protective function Inspect and change the varistors in the following manner 1 Disconnect the Sunny Boy from voltage sources see section 8 1 Disconnect the Sunny Boy from Voltage Sources page 65 Open the SMA DC Disconnect see section 8 2 Open SMA DC Disconnect page 66 The position of the varistors are shown in the figure A Inspect the varistors for discoloration or other signs of visual damage Furthermore test the varistors with an ohmmeter when the resistance of the varistor is nearly or equal O the varistor is damaged If varistors are discolored or damaged you must replace them Always replace the entire set of varistors UNGROUNI GROUND Terminal I Y al Z GROUND i m A
17. in Grounding as described in section 7 Commissioning page 63 The inverter will now check whether there is still a ground fault Ifthe ground fault has been removed the display shows lt Insulation resist gt as soon as the initial voltage has been reached Ifthe ground fault still exists the error message lt Ground fuse fault gt will remain on the display In that case repeat steps 3 and 4 Disconnect the Sunny Boy from voltage sources see section 8 1 Disconnect the Sunny Boy from Voltage Sources page 65 Open the SMA DC Disconnect see section 8 2 Open SMA DC Disconnect page 66 Check the SMA Plug in Grounding fuse and if necessary replace it as described in section 9 3 1 Exchanging SMA Plug in Grounding fuse page 74 Connect the fully operative SMA Plug in Grounding to the inverter as described in section 6 6 Installation of the SMA Plug in Grounding page 54 Close the SMA DC Disconnect see section 8 3 Closing the SMA DC Disconnect page 67 Start up the inverter again as described in section 7 Commissioning page 63 In this process the inverter checks whether the configured grounding type corresponds to the grounding type of the installed SMA Plug in Grounding MI After having been re started the inverter will start feeding into the grid again 11 3 Correct the Grounding Type Proceed as follows to remove the error lt Wrong earthing type check earthin
18. is on the right side of the enclosure The serial number Serial No and the type Type Model of the Sunny Boy are specified on the type label 18 SB20_25_30HFUS eng IUS11371 1 Installation Guide SMA America LLC Mounting the Device 4 Mounting the Device 4 1 Safety 1 DANGER Danger to life due to fire or explosions There is always a certain risk with electric devices that a fire can occur even though greatest attention was paid to avoid this during the development e Do not install the inverter on flammable construction materials Do not install the inverter in areas where highly flammable materials are stored e Do not install the inverter in potentially explosive areas WARNING The Sunny Boy can become hot during operation Risk of burns e Mount the Sunny Boy in such a way that it cannot be touched inadvertently during operation CAUTION Danger of crushing due to the Sunny Boy falling Crushing of body parts e Consider the weight of the Sunny Boy with SMA DC Disconnect of approximately 50 Ibs 23 kg during mounting e Always lift the Sunny Boy with both hands Installation Guide SB20_25_30HFUS englIUS11371 1 19 Mounting the Device SMA America LLC 4 2 Selecting the wall mounting location Observe the following conditions during installation 20 Le The installation method and mounting location must be suitable for the weight and dimensions of the Sunny Boy
19. modules e Switch off the AC load disconnection switch e Before dismounting the SMA DC Disconnect ensure that the SMA DC Disconnect is disconnected on both the AC and DC sides il Before you can dismount the SMA DC Disconnect you must disassemble the Sunny Boy see section 12 1 Disassembling the Sunny Boy page 92 Installation Guide SB20_25_30HFUS eng IUS11371 1 95 Decommissioning SMA America LLC Removing cables of the PV plant from the DC side of the DC Disconnect without optional string fuses Using DC Terminal blocks Disconnect the wires to the DC terminal block as described in section 12 7 2 Disconnect wires from DC terminal block page 101 1 Remove cables of the PV strings from the terminals A and B 2 Ifthe cables of the PV strings are connected to the screw clamps C and D Loosen the screws of the screw clamps C and D counterclockwise Pull the cables from the screw clamps C and D 3 Pull the cables of the PV string the grounding cable of the PV plant and the grounding cable of the ground rod through the opening of the SMA DC Disconnect enclosure One and Two Si for more strings and f mani OH g QO O a MM The cables of the PV plant are removed from the DC side of the SMA DC Disconnect
20. rod through the cable conduits Cable conduits on the DC side are installed and the cables of the PV strings are lead into the Sunny Boy Installing cable conduit and inserting cable on the AC side l Push out the protective caps of the openings through which the AC cables are to be lead from the inside of the enclosure of the SMA DC Disconnect Install cable conduits 4 in 19 mm on the free openings of the SMA DC Disconnect Screw the cable conduits with counter nuts to the inner side of the SMA DC Disconnect Lead the AC cable through the cable conduit from the inside of the safety enclosure into the inside of the SMA DC Disconnect Cable conduits are installed and the cable for the AC connection are lead into the Sunny Boy Installation Guide SB20_25_30HFUS eng IlUS1 13711 45 Wiring the Sunny Boy SMA America LLC 6 4 Connection of PV strings without optional string fuses DC connection of the Sunny Boy with a negatively grounded PV array If your PV plant requires negative grounding connect the cables of the PV strings and the DC cable of the Sunny Boy to the terminal block in the following way Using DC Terminal blocks Connect the wires to the DC terminal block as described in section 12 7 1 Connect wires to DC terminal block page 100 Connecting the Sunny Boy on the DC side 1 Connect the negative inverter wire black wire of the Sunny Boy to the terminal B 2 Connect the posit
21. user interface display Once the ground fault is located and corrected the ground fault error will need to be manually cleared and the inverter will then resume normal operation PV series fusing Series fusing may be required depending on the type of PV module used in the system See National Electrical Code 690 9 Interconnection code compliance The Sunny Boy has been tested and listed by Underwriters Laboratories to meet the requirements of UL1741 Static Inverters and Charge Controllers for use in Photovoltaic Power Systems as well as EEE 929 2000 Recommended Practice for Utility Interface of Photovoltaic Systems and IEEE 1547 Standard for Interconnecting Distributed Resources with Electric Power Systems UL1741 is the standard applied by Underwriters Laboratories to the Sunny Boy to certify that it meets the requirements of the NEC and IEEE 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 Sunny Boy is also certified to C22 2 No 107 1 01 General Use Power Supplies Contact the local utility and or the authority having jurisdiction prior to connecting the Sunny Boy to the power distribution grid Operating temperature The Sunny Boy has been designed to maintain full power output at ambient temperatures as high as 113 F 45 C Fan cooling allows this level of output power to be a
22. 9 Decommissioning SMA America LLC 12 3 Disassemble the Sunny Boy for Transport In the event of a fault it can be that your Sunny Boy must be replaced In this case you receive a replacement device with a transport lid 1 Disassembling the Sunny Boy as described in section 12 1 Disassembling the Sunny Boy page 92 2 Remove the SMA Plug in Grounding Turn it in counterclockwise direction and then pull it down M The SMA Plug in Grounding is loosened from its bracket 3 Disassemble the Quick Module as described in section 5 5 Disassembling the Quick Module page 39 MM The Sunny Boy is disassembled for transport Pack the Sunny Boy for transport as described in section 12 4 Packaging the Sunny Boy page 100 12 4 Packaging the Sunny Boy If possible always package the Sunny Boy in the original packaging If it is no longer available you can also use an equivalent box The box must be completely closeable have a handle system and made to support both the weight and size of the Sunny Boy 12 5 Storing the Sunny Boy Store the Sunny Boy in a dry place where ambient temperatures are always between 13 F 25 C and 140 F 60 C 12 6 Disposing of the Sunny Boy Dispose of the Sunny Boy at the end of its service life in accordance with the disposal regulations for electronic waste which apply at the installation location at that time Alternatively send it back to SMA with shipping paid by s
23. America com A 8 Parameter Set Display Language ____ Country grid i a a parameter set ee parameter set i ee parameter set a ee parameter set amp 0 US 208Vwihou neural ferai usao oo fa 1 US 208Vwihow neural Spoin Jusa 8 2 US 208Vwihow neural French usa 8 8 US 240Vwihou neural fergis usa fa 9 US 240Vwihou neural Spanish Jusa 8 A US 240Vwihow neural French usa C C C E e o p sas fmn ua C C e S E Installation Guide SB20_25_30HFUS eng IlUS1 13711 31 Configuring the Sunny Boy SMA America LLC A B _ Parameter Set Display Language Country grid D o Off Grid 60Hz English flexible oi 2 emn oe gt f If the Sunny Boy is not set to the correct installation country configure it via the two rotary switches as described in section 5 2 2 Configuration for Bluetooth communication page 34 Alternatively you can set the settings via the parameters CntrySet or Sett country stand using a communication device once you have commissioned the Sunny Boy If you require adjusted parameter settings for your installation location you can change these with the help of a communication device 32 SB20_25_30HFUS eng IUS11371 1 Installation Guide SMA America LLC Configuring the Sunny Boy 5 2 Configuring the Quick Module il You can configure the Quick Module before connecting it to the Sunny Boy The Sunny Boy can be configured in two ways for several countries and grids
24. Failure gt Check AC installation lt Check fuse gt Check whether there is a general black out lt Unstable operation gt Wait for higher sun irradiation The supply at the DC input of the If this event recurs at medium sun Sunny Boy is not sufficient for a stable irradiation check the PV plant design operation and correct connection of the PV array lt DC overvoltage gt Immediately disconnect the Sunny lt Disconnect the generator gt Boy from the PV array as sei i tion 8 1 Di tthe S The DC input voltage is too high at the a ee ee R N Boy from Voltage Sources p page 65 Otherwise the Sunny Boy can be destroyed Check the DC voltage of the strings for adherence to the maximum input voltage of the Sunny Boy before you re connect the Sunny Boy to the PV array lt Isolation resistance gt Check the strings for ground faults as described in section 11 1 Checking the PV array for Ground Fault page 88 The Sunny Boy has detected a ground fault in the PV array The installer of the PV array must remedy the ground faults before you re connect the affected string Check the SMA Plug in Grounding The fuse may be cleared lt DC Overcurrent gt If this event occurs often lt Check Generator gt e Check the layout and the wiring of the PV array An overcurrent condition occurs on the DC side of the Sunny Boy and the Sunny Boy switches off lt Wait for DC start conditions gt Wai
25. Opening the installed Quick Module 1 DANGER High voltages inside the inverter Death or serious injury due to electric shock e Switch off the line circuit breaker and secure it against being reactivated e Ifa multifunction relay is present disconnect the multi function relay power supply 1 Disconnect the Sunny Boy from all voltage sources see section 8 1 Disconnect the Sunny Boy from Voltage Sources page 65 2 Open the SMA DC Disconnect see section 8 2 Open SMA DC Disconnect page 66 Pull the Quick Module carefully downwards to the stopper M The Quick Module is completely visible 4 Flip up the lower flap of the Quick Module and open the lid 5 Set the installation country and display language see section 5 2 2 Configuration for Bluetooth communication page 34 6 Set the Net ID for Bluetooth communication see section 5 2 2 Configuration for Bluetooth communication page 34 Installation Guide S B20_25_30HFUS englUS11371 1 37 Configuring the Sunny Boy SMA America LLC 7 Close the lid of the Quick Module 8 Push the Quick Module carefully upwards to the stopper M The lug of the Quick module is flush with the lug of the bracket 9 Close the SMA DC Disconnect see section 6 8 Closing the SMA DC Disconnect page 62 10 Commision the Sunny Boy see section 7 Commissioning page 63 MM The country configuration is complete
26. V strings Feed in the wire from below into the terminal of a fuse G F E Tighten the terminal screw in a clockwise direction Strip the ends of the additional wires on one side in accordance with the specifications of the fuse holder manufacturer Strip the ends of the additional wires on the other Yo in side to a length of WE in 8 mm Loosen the screws of the upper terminal of the fuses es A in a counterclockwise direction For each additional wire Feed in the wire from above into the terminal of a fuse holder A Tighten the terminal screw in a clockwise direction SB20_25_30HFUS eng IUS11371 1 Installation Guide SMA America LLC Wiring the Sunny Boy 13 14 l5 16 17 18 Connect two of the additional wires to the terminals D Connect the third additional wire to screw clamp E Completely open the screw clamp turn the screw counterclockwise Feed in the wire from below into the screw clamp Close the screw clamp turn the screw clockwise Connect two of the positive DC wires of the PV strings to the terminals H Connect the third positive DC wire of the PV strings to screw clamp F Completely open the screw clamp turn the screw counterclockwise Feed in the wire from below into the screw clamp Close the screw clamp turn the screw clockwise Plug the equipment grounding conductor of the PV plant into terminal B If there is
27. a 2 fo om D amp io pos oO Q Q LU gt o Q 5 i O Q Q io e a o 2 5 zy 0 pa 0 0 0 2 0 4 0 6 0 8 1 0 Output power Rated power 106 SB20_25_30HFUS eng IUS1 13711 Installation Guide SMA America LLC Technical Data Sunny Boy 3000HF US Sunny Boy 3000HF US Efficency with CEC operating points V 480VDC V 415 VDC V 220 V DC weighted Eta weighted in accordance 0 0 0 2 0 4 0 6 0 8 1 0 Output power Rated power Installation Guide SB20_25_30HFUS eng IUS11371 1 107 Accessories SMA America LLC 14 Accessories You will find the corresponding accessories and replacement parts for your product in the following overview If needed you can order these from SMA or your dealer Name SMA order number Optional Quick Module 485QM with RS485 A85QMUS 10 NR interface Optional Flush Mount Kit for surface flush MOUNT KIT 10 NR installation SMA Plug in Grounding stick as replacement for PLUGIN GRDUS 10 NR positive or negative connection to ground set of 10 fuses 1A 600V Optional string fuse kit set of 3 holders with optional fuses 4 5 6 8 10 12 15 20 A Optional string fuses set of 10 PV FUSE Fuses listed to UL2579 under category JFGA 600V DC several sizes 108 SB20_25_30HFUS eng 1US1 13711 Installation Guide SMA America LLC 15 Cont
28. a cross sectional area of up to AWG 8 10 mm to the terminal A 4 Ifa positive DC wire of a PV string has a cross ve sectional area of AWG 8 10 mm to maximum eee AWG 2 35 mmz2 Inverter Wire black fi Completely loosen the screw of the screw clamp ier Wro re PLUGIN GROUNDING F turn the screw counterclockwise Feed in the DC wire from below into the screw clamp Tighten the screw of the screw clamp turn the screw clockwise 5 Connect the negative DC wires of the PV strings with a cross sectional area of up to AWG 8 10 mm2 to the terminal D 6 Ifa negative DC wire of a PV string has a cross sectional area of AWG 8 10 mm to maximum AWG 2 35 mmz2 Completely loosen the screw of the screw clamp E turn the screw counterclockwise TI m Feed in the DC wire from below into the screw clamp Tighten the screw of the screw clamp turn the screw clockwise 48 SB20_25_30HFUS eng IUS11371 1 Installation Guide Wiring the Sunny Boy SMA America LLC 7 Plug the equipment grounding conductor of the PV plant into terminal B If there is a grounding electrode conductor plug the grounding electrode conductor into terminal A x ding Positi
29. act If you have technical problems with our products please contact our Service Line We require the following information in order to provide you with the necessary assistance Inverter type Serial number of the Sunny Boy Type and number of modules connected Event number or display message of the Sunny Boy Type of communication if applicable Type of fault signaling contact connected if applicable SMA Solar Technology America LLC 6020 West Oaks Blvd Ste 300 Rocklin CA 95765 Tel 1 916 625 0870 Tel 1 877 MY SMA TECH Tel 1 877 697 6283 Toll free available for USA Canada and Puerto Rico Fax 1 916 625 0871 Service SMA America com www SMA America com SMA Solar Technology Canada Inc 2425 Matheson Blvd 8th Floor Mississauga ON L4W 5K5 Canada Tel 1 877 506 1756 Toll free available for Canada Service SMA Canada ca www SMA Canada ca Installation Guide SB20_25_30HFUS eng IUS11371 1 Contact 109 SMA America LLC
30. arameter Module grounding prescribed DATA II or Md GndMdt DATA e Parameter Prescribed grounding type DATA II or Md GndModReq DATA I 6 6 2 Parameter Module grounding prescribed or GndMdt The grounding module in the inverter is configured via the parameter Module grounding prescribed or Md GndMdt Make sure you comply with the requirements of the module manufacturer as well as the regulations applicable at the installation location of the PV plant There are two configuration possibilities Value Explanation Default Value DATA II DATA 1 DATA II DATA I No refavalabl Yes Grounding is prescribed by normative regulation or the module manufacturer The inverter can only be operated with an SMA Plug in Grounding set In case of a grounding error the inverter will not continue to feed into the grid and interrupts operation The inverter displays a warning with the event number 35 in case of an insulation error 56 SB20_25_30HFUS eng IUS11371 1 Installation Guide SMA America LLC 6 6 3 Error Messages Wiring the Sunny Boy Always correct errors Immediately correct errors even if the inverter continues to feed into the grid The inverter behaves differently depending on the configuration of the parameter Module grounding prescribed or MdGndMdt The following error messages may occur Parameter Module grounding prescribed MdGndMdt Configuration Yes Event numbe
31. bed in section 6 3 section 6 4 and section 6 5 connect the SMA Plug in Grounding to the terminal socket so that the symbol shows to the front on the cap Push the SMA Plug in Grounding upwards until it clicks into place NO If the PV plant shall be positively grounded and is properly wired as described in section 6 3 section 6 4 and section 6 5 connect the SMA Plug in Grounding to the terminal socket so that the symbol shows to the front on the cap Push the SMA Plug in Grounding upwards until it clicks into place Close the SMA DC Disconnect see section 8 3 Closing the SMA DC Disconnect page 67 Commission the Sunny Boy see section 7 Commissioning page 63 The SMA Plug in Grounding fuse is changed SB20_25_30HFUS eng IUS11371 1 Installation Guide SMA America LLC Maintenance and cleaning 9 3 2 Replacing optional string fuses PV String Fuse Sizing CAUTION The string fuse size must not be greater than the maximum fuse size rating of the PV module as provided on the PV module manufacturers data sheet If no maximum fuse size is indicated please contact the PV module manufacturer il Refer to section 14 Accessories page 108 for a specification of suitable fuses DC Disconnect Requirements National Electrical Code 690 15 18 allows the use of fuse holders as a suitable means of disconnecting PV arrays for servicing Addi
32. chieved even in enclosed spaces The Sunny Boy will continue to operate well beyond 113 F 45 C and derates as needed to maintain a safe internal component temperature 14 SB20_25_30HFUS eng IUS113711 Installation Guide SMA America LLC Safety 2 2 Safety instructions l DANGER During operation high voltages are present in the Sunny Boy Death or serious injury due to electric shock e All work on the Sunny Boy must only be carried out by qualified personnel During operation high voltages are present in the PV plant Death or serious injury due to electric shock in the event of missing or damaged array grounding e Comply with the local requirements for grounding the modules and the PV array e Thoroughly connect and ground the generator frame and other electrically conducting surfaces WARNING The Sunny Boy can become hot during operation Risk of burns Do not touch the enclosure body during operation e Only touch the lid during operation CAUTION Possible damage to health as a result of the effects of radiation Do not stay closer than 8 in 20 cm to the Sunny Boy for any length of time Installation Guide SB20_25_30HFUS englIUS11371 1 15 Safety SMA America LLC 2 3 FCC Compliance Information SMA PV inverter model Sunny Boy 2000HF US Sunny Boy 2500HF US Sunny Boy 3000HF US This device complies with Part 15 A and B of the FCC Rules Operation is subject to the following c
33. d in SMA Plug in Grounding saves the grounding type The inverter can be operated with or without grounding 58 SB20_25_30HFUS eng IUS11371 1 Installation Guide SMA America LLC Wiring the Sunny Boy 6 7 Wiring the AC Output This subsection provides complete step by step procedures for wiring the AC output from the Sunny Boy to the power distribution grid 6 7 1 AC connection safety requirements WARNING All electrical installations must be done in accordance with all local electrical codes and with the National Electrical Code ANSI NFPA 70 Use 6 AWG maximum 194 F 90 C copper wire for all AC wiring connections to the Sunny Boy Voltage drop and other considerations may dictate that larger size wires be used Use only solid wire or stranded wire WARNING The National Electrical Code states that the inverter must be connected to a dedicated circuit and that no other outlets or devices can be connected to the same circuit See National Electrical Code section 690 64 b 1 The National Electrical Code also imposes limitations on the size of the inverter and the manner in which it is connected to the power distribution grid See National Electrical Code section 690 64 b 2 WARNING Before connecting the Sunny Boy to the electrical power distribution grid contact the local utility company This connection must be made only by qualified personnel WARNING To reduce the risk of fire c
34. d the grounding cable of the ground rod through the opening of the SMA DC Disconnect enclosure M The cables of the PV plant are removed from the DC side of the SMA DC Disconnect Installation Guide SB20_25_30HFUS eng IUS11371 1 97 SMA America LLC Decommissioning Removing cables of the power distribution grid from the AC side of the SMA DC Disconnect 1 Remove cables of the power distribution grid from terminal block A Pull the cables of the power distribution grid from the SMA DC Disconnect enclosure see manual pi ding Positive Grounding d UNGROUNDED ED GROUNDED D Terminal 4 4 GROUNDED Facing The cables of the power distribution grid are removed from the AC side of the SMA DC Disconnect Installation Guide 98 SB20_25_30HFUS eng IUS11371 1 SMA America LLC Decommissioning Disassembling the SMA DC Disconnect enclosure 1 Loosen the screw at the bottom of the wallmounting bracket 2 With both hands hold the SMA DC Disconnect slightly slanted and lift out of the wall mounting bracket 3 Remove the SMA DC Disconnect to the front MI The SMA DC Disconnect enclosure is disassembled Installation Guide SB20_25_30HFUS eng IUS11371 1
35. e By using the two rotary switches A and B of the Quick Module e By changing the parameters CntrySet or Sett country stand using an external communication device with Bluetooth interface If you don t want to use Bluetooth communication deactivate Bluetooth completely by turning the NetID of the inverter to O see section Configuration for Bluetooth communication on page 34 5 2 1 Configuration before installation If you have not yet installed the Quick Module into the Sunny Boy proceed as follows for the configuration 1 Open the Quick Module by fliping up the lower flap of the Quick Module and opening the lid of the Quick Module until it locks in place 2 Set the arrows on both left rotary switches A and B to the desired positions using a y in 2 5 mm screw driver See table in section 5 1 1 Country setting via rotary switch page 31 Jumper for English language The possibility to swap the language to English exists additionally via a jumper e g during maintenance work e Plug the jumper onto both left pins as shown on the right MM The language and installation country are set Installation Guide SB20_25_30HFUS eng IUS11371 1 33 Configuring the Sunny Boy SMA America LLC 5 2 2 Configuration for Bluetooth communication Communication via Bluetooth with a communication device is activated as standard Networking via Bluetooth with ot
36. e SMA DC Disconnect CAUTION Danger of crushing due to the SMA DC Disconnect falling Crushing of body poarts e Consider the weight of the SMA DC Disconnect of approximately 11 Ibs 5 kg during mounting 1 Turn the DC disconnect switch of the On SMA DCDisconnect to position Off 2 Loosen the screws on the enclosure of the SMA DC Disconnect Do not take the screws out of of oH the lid 3 Remove the lid with the screws to the front A Set the lid aside in such a way that it will not become damaged 5 Hold the SMA DC Disconnect with both hands slightly slanted Push both slots of the SMA DC Disconnect to the lower hooks of the mounting bracket until it clicks Nn Installation Guide SB20_25_30HFUS eng1IUS113711 2 Mounting the Device SMA America LLC 6 Push SMA DCDisconnect straight onto the wall 7 Ensure the SMA DC Disconnect is correctly in place MI The SMA DC Disconnect is mounted onto the wall mounting bracket 26 SB20_25_30HFUS eng IUS11371 1 Installation Guide SMA America LLC Mounting the Device 4 5 Mounting the Sunny Boy onto the Wall mounting bracket CAUTION The Sunny Boy weighs approximately 40 lbs 18 kg Risk of injury during lifting of the Sunny Boy e Always lift the Sunny Boy with both hands 1 Lift up the Sunny Boy with both hands and hang from above in the SMA DC Disconnect and in the wall
37. e Statement The SMA Sunny Boy 2000HF US Sunny Boy 2500HF US Sunny Boy 3000HF US contains a modular transmitter Thus it must have a separation of at least 8 in 20 cm between the antenna and the body of the user or nearby persons excluding hands wrists feet and ankles 16 SB20_25_30HFUS eng IUS11371 1 Installation Guide SMA America LLC Safety 2 4 Common utility voltage configurations The figure below illustrates common utility voltage configurations Remember when connecting the Sunny Boy to the power distribution grid the phase relationship is not important but the voltage must be compatible 208 Delta 120 WYE 240 120 Split Phase 240 Delta 120 Stinger 249 gt 208 208 208 240 Delta 208 Delta 480 Delta 277 WYE DO NOT USE 240 208 480 480 A A A J 480 480 Delta DO NOT USE Installation Guide SB20_25_30HFUS eng IUS11371 1 17 Unpacking and inspection SMA America LLC 3 Unpacking and inspection 3 1 Scope of delivery Check the delivery for completeness and for visible external damage such as cracks in the enclosure or in the display Contact your dealer if anything is damaged or missing Object Quantity Description Sonny Bo Bo fl Wall mounting bracket Installation manual gt eeunentset C E fF lancon a SMA Plug in Grounding Screws and washers M5 3 2 Identifying the Sunny Boy You can identify the Sunny Boy using the type label The type label
38. empty You can refer to the possible event messages in the scrolling lines and their meaning in section 10 Messages page 82 i 64 If there is a ground fault in the array before DC is switched on the messages Insulation Failure and Check Generator will be displayed in turns and the GFDI fuse may clear If there is a ground fault in the array while DC is switched on the messages Ground Fuse Fault and Check Ground Fuse will be displayed in turns e If these error messages are encountered switch off the DC and AC disconnects to the Sunny Boy and troubleshoot the array Refer to section Checking the PV array for Ground Fault on page 88 If the Sunny Boy is not operating as expected after the commissioning procedure has been completed refer to Section 10 Messages page 82 and to section 11 Troubleshooting page 88 If there is adequate sun irradiation and the resulting PV input voltage is greater than 220 V DC the Sunny Boy will automatically begin feeding power to the power distribution grid Anytime the AC power is disconnected from the inverter either manually or as a result of an AC disturbance the inverter will wait 5 minutes after the AC power has been restored to reconnect When servicing the inverter always disconnect the AC first then switch off the DC Disconnect SB20_25_30HFUS eng IUS11371 1 Installation Guide SMA America LLC Opening and closing 8 Opening and closing
39. en the cover is replaced Carefully position the cover on the front of the SMA DC Disconnect Make sure that the switch handle snaps into place Make sure that the upper edge of the DC Disconnect is covered by the lower edge of the Sunny Boy Make sure that the two screws in the cover are aligned correctly with the two threaded holes in the enclosure While holding the cover in place insert the two screws into the threaded holes in the case and turn them clockwise until they are hand tight Be careful not to cross thread any of the screws Do not use power tools to fasten the screws Verify that the cover is in the correct position Tighten the cover screws to a torque of 53 in lbs 6 Nm SB20_25_30HFUS eng IUS11371 1 Installation Guide SMA America LLC Commissioning 7 Commissioning WARNING Follow the steps in the commissioning procedure in the order they are presented Deviating from these procedures could expose you to lethal voltages that can cause serious injury and or death CAUTION Follow the steps in the commissioning procedure in the order they are presented Deviating from these procedures could cause irreversible damage to the Sunny Boy and void the warranty All Sunny Boy inverters have a sophisticated system for detecting and responding to PV array ground faults as required by National Electrical Code section 690 5 The PV array normally operates in a grounded configu
40. ender and labeled FOR DISPOSAL contact see section 15 Contact page 109 12 7 Supplementary Information 12 7 1 Connect wires to DC terminal block Proceed as follows in order to fix the wires into the terminals of the terminal block Strip the end of the wire to a length of ue in 2 in 12 mm 100 SB20_25_30HFUS eng IUS1 13711 Installation Guide SMA America LLC Decommissioning Or ot OO T Push an insulated screw driver into the rectangular opening under the spring terminal which should open Push the screwdriver down and hold this position M The spring terminal is open Lead the wire into the spring terminal Bring the screwdriver to its exit position and pull out of the rectangular opening Check for firm positioning of the wire in the spring terminal The wire is connected to the spring terminal 12 7 2 Disconnect wires from DC terminal block Proceed as follows in order to disconnect the wires from the terminals of the terminal block D N gt A Push an insulated screw driver into the rectangular opening under the spring terminal which should open Push the screwdriver down and hold this position M The spring terminal is open Remove the wire from the spring terminal Bring the screwdriver to its exit position and pull out of the rectangular opening The wire is removed from the spring terminal Installation Gu
41. er 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 t
42. f the power distribution grid to the terminal E 5 Connect the L2 wire of the power distribution grid to the terminal F 6 Connect the AC equipment ground wire from the power distribution grid to terminals G 7 f there is a neutral electic conductor from the power distribution grid Connect the neutral No conductor from the power distribution grid to terminal D noma L Connecting the power supply of the fan 8 Plug in the plug of the fan into socket A A click sound can be heard by propper connection Pull the fan plug slightly to ensure mechanical connection MM The Sunny Boy is connected and grounded on the AC side Fan power supply is connected Installation Guide SB20_25_30HFUS eng IUS11371 1 6 Wiring the Sunny Boy SMA America LLC 6 8 Closing the SMA DC Disconnect When you have finished connecting the DC input wires the AC output wires and the fan power supply recheck all the connections to ensure that everything is in the right place and that all connections and knockout fittings are secure and properly torqued Check all of the knockout fittings of the SMA DCDisconnect to ensure that they are in place l 62 Check wire routing to ensure that no wires can interfere with proper sealing of the cover and that no pressure will be exerted on the connections wh
43. formation on special subjects in the download area of www SMA America com Refer to the user manual for detailed information on operating the Sunny Boy 1 4 Nomenclature In this document SMA America Production LLC and SMA Solar Technology Canada Inc are referred to in the following as SMA Installation Guide SB20_25_30HFUS engIUS113711 11 Safety SMA America LLC 2 Safety 2 1 Appropriate usage The Sunny Boy is a PV inverter which converts the direct current of a PV array into alternating current and feeds this into the power distribution grid The Sunny Boy is suitable for installation indoors and outdoors You can use the generated alternating current electricity as follows House grid The energy is fed into the house grid and is used there by connected consumers for example household devices or lights The surplus energy is fed into the power distribution grid When the Sunny Boy is not generating energy for example at night the connected consumers are supplied by the power distribution grid The Sunny Boy does not have its own energy meter When the energy is supplied into the power distribution grid the energy meter runs in reverse Power distribution grid The energy is fed directly into the power distribution grid The Sunny Boy does not have its own energy meter Dependent on the utility supplier the energy produced is compensated Stand alone grid The Sunny Boy is connected to a stand alone grid A stand alone g
44. g set gt ie 90 Disconnect the Sunny Boy from voltage sources see section 8 1 Disconnect the Sunny Boy from Voltage Sources page 65 Open the SMA DC Disconnect see section 8 2 Open SMA DC Disconnect page 66 Connect a fully operative SMA Plug in Grounding with correct polarity to the inverter as described in section 6 6 Installation of the SMA Plug in Grounding page 54 Close the SMA DC Disconnect see section 8 3 Closing the SMA DC Disconnect page 67 Start up the inverter again as described in section 7 Commissioning page 63 In this process the inverter will check whether the grounding type corresponds to the configured or learned grounding type The error has been corrected and the inverter is feeding into the grid again SB20_25_30HFUS eng IUS11371 1 Installation Guide SMA America LLC Troubleshooting 11 4 Exchanging Grounding Fuse Proceed as described in chapter 9 3 1 Exchanging SMA Plug in Grounding fuse page 74 11 5 AC fault If the line circuit breaker installed at the Sunny Boy tripped out check the varistors as described in section 9 4 Inspecting and changing the varistors page 80 Installation Guide SB20_25_30HFUS eng IUS11371 1 9 Decommissioning SMA America LLC 12 Decommissioning 12 1 Disassembling the Sunny Boy Removing the connection of the Sunny Boy on the DC side 1 Disconnect the Sunny Boy from voltage sources see section 8 1 D
45. h 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 4 SB20_25_30HFUS eng IUS1 13711 Installation Guide SMA America LLC Important Safety Instructions 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 Information This symbol accompanies notes that call attention to supplementary information that you must know and use to ensure optimal operation of the system Markings on this product The following symbols are used as product markings with the following meanings 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
46. he wall mounting bracket page 23 Set the bracket aside temporarily 3 Ensure that the material behind the markings for the drill holes is capable of bearing load Drill holes at the marks you made on the wall 5 Insert wall anchors into the drill holes DO NOT use molly or toggle bolts to mount the Sunny Boy to sheet rock or panelling Tip for installing The diameter of the holes you drill must match the hardware you are using to mount the Sunny Boy For example if you are mounting the Sunny Boy to a concrete wall the hole diameter must be approximately the same as the outside diameter of the concrete anchors you intend to use If you are mounting the Sunny Boy on a wall that has wooden studs inside it the hole diameter must be the correct size for the lag screws you intend to use to mount the bracket It is recommended that the lag screws be made of stainless steel and the diameter of the screws closely match the diameter of the holes in the wall mounting bracket Make sure that the screws are long enough to penetrate the wall to a depth of 1 in 38 mm 24 SB20_25_30HFUS eng IUS113711 Installation Guide SMA America LLC Mounting the Device 6 Insert the screws through the holes in the wall mounting bracket and into the holes you drilled in the wall 7 Tighten the screws clockwise until the bracket is held firmly against the wall Do not overtighten the screws MM The wall mounting bracket is mounted 4 4 Mounting th
47. her inverters is deactivated as a delivery condition The following configuration settings are possible via a rotary switch switch C Switch position NetID Seng SSCS a a Communication via Bluetooth with communication device possible no networking with other inverters factory setting Networking with other inverters In order to restrict communication via Bluetooth between the inverters of your system and those of neighboring systems you can assign an individual NetID to the inverters of your system switch position 2 F This however is only necessary if neighboring systems are to be found within a radius of 1 640 ft 500 m To ensure that all inverters in your system are detected by your communication device all inverters must have the same NetID To assign a NetID proceed as follows 1 DANGER High voltages in the inverter Death or serious injury due to electric shock If you have already connected the Quick Module to the Sunny Boy carry out the following steps e Switch off the line circuit breaker and secure it against being reactivated e Ifa multifunction relay is present disconnect the multi function relay power supply 1 Set the arrow on the right rotary switch C using a screw driver of width Ue in 2 5 mm Acceptance of the settings The Bluetooth settings will first be accepted upon commissioning 34 SB20_25_30HFUS eng IUS11371 1 Installation Guide SMA America LLC Configur
48. ical Data ccc ccc cece cece ec ceeces 103 Torque Values and Wire Sizes 00 0 0 ee eee 105 EMIGIENCYCUVES srasni ed Ate esouueauheye bbws 106 Accessories esner OSA iw Sih RS he ew 108 Conoc s ciosdnc i333 38 5 3 hee ho ha Be a ae 109 SB20_25_30HFUS eng IUS11371 1 Installation Guide SMA America LLC Notes on this manual 1 Notes on this manual This manual describes the assembly installation commissioning and maintenance of the following SMA inverters e Sunny Boy 2000HF US SB 2000HFUS 30 e Sunny Boy 2500HF US SB 2500HFUS 30 e Sunny Boy 3000HF US SB 3000HFUS 30 This manual does not cover any details concerning equipment connected to the Sunny Boy e g solar modules Information concerning the connected equipment is available from the manufacturer of the equipment 1 1 Validity This manual is valid for the Sunny Boy 2OOOHF US Sunny Boy 2500HF US and Sunny Boy 3000HF US 1 2 Target group This manual is for qualified personnel Qualified personnel have received training and have demonstrated skills and knowledge in the construction and operation of the device Qualified personnel is trained to deal with the dangers and hazards involved in installing electric devices WARNING Dangerous voltages are present at various points in a PV system For safety reasons it is recommended that only qualified personnel install and operate this equipment 1 3 Additional information You can find further in
49. ide SB20_25_30HFUS engIUS113711 101 Decommissioning SMA America LLC 12 7 3 Disconnect wires from AC terminal block on 102 Strip the end of the wire to a length of in W in 14 mm a Push an insulated screw driver into the rectangular yooo opening under the spring terminal which should open Push the screwdriver down and hold this position M The spring terminal is open Remove the wire from the spring terminal Bring the screwdriver to its exit position and pull out of the rectangular opening The wire is removed from the spring terminal SB20_25_30HFUS eng IlUS1 13711 Installation Guide SMA America LLC Technical Data 13 Technical Data PV array connection data SB 2000HFUS SB 2500HFUS SB 3000HFUS 30 30 30 220w 2750W 330w 1 Number of MPP trackers Max number of strings 23 parallel extendable Voltage ripple lt 10 of the input voltage The maximum open circuit voltage which can occur at a cell temperature of 14 F 10 C must not exceed the maximum input voltage Power distribution grid connection AC SB 2OOOHFUS SB 2500HFUS SB 3000HFUS data 30 30 30 AC nominal power 2 000 W 2 500 W 3 000 W Max AC power 2 000 W 2 500 W 3 000 W Rated output power PAC red 2 300 W 220 Voc at 280 VAC Rated output power PAC red 2 400 W 480 Voc at 208 Vac Nominal AC current at 240 V 10 4 A 12 5A Nominal AC current at 208 V 12 0 A 14 4 A Max Branch Circui
50. in 222 mm ys p 4 InN mm gt N 8 3 A S N N Ka lt Q gt oY oS oS oV v v or aS LY LY LY Faa i Nae as 4 gt lt 4 pi gt lt gt E eee eee eee ee N A 1 Pe RTS Jee ee eR Ae x 1 0 35 in 9 mm E E N xt 9 c E NG y m N N a oe N DU ears Y ee AES Vv 132242 in 348 2 mm 22 SB20_25_30HFUS eng IUS1 13711 Installation Guide SMA America LLC Mounting the Device 4 3 1 Possibilities for mounting the wall mounting bracket Mounting on stone wall For mounting on a stone wall you must affix the wall mounting bracket with a minimum of 3 screws The position of the screws on the wall mounting bracket is as follows e 1 screw on the upper left side of the wall mounting bracket e 1 screw on the upper right side of the wall mounting bracket e 1 screw below on the wall mounting bracket Mount the wall mounting bracket as described in section 4 3 2 Mounting the wall mounting bracket page 24 Mounting on a wooden wall with a stud For mounting on a wooden wall with a stud you must affix the wall mounting bracket with 2 screws The position of the screws on the wall mounting bracket is as follows e 1 screw at the upper middle of the wall mounting bracket e 1 screw below on the wall mounting bracket Mount the wall mounting bracket as described in section 4 3 2 Mounting the wall mounting bracket
51. ing the Sunny Boy 5 2 3 Closing the Quick Module 1 Close the lid of the Quick Module and flip the flap down M The Quick Module is closed You can now mount the Quick Module to the Sunny Boy as described in section 5 3 Mounting the Quick Module page 35 5 3 Mounting the Quick Module 1 If the Sunny Boy is already operating Disconnect the Sunny Boy from voltage sources see section 8 1 Disconnect the Sunny Boy from Voltage Sources page 65 and open the SMA DC Disconnect see section 8 2 Open SMA DC Disconnect page 66 2 Plug the Quick Module into the designated holes on the bracket until it snaps into place Installation Guide SB20_25_30HFUS eng IUS11371 1 35 Configuring the Sunny Boy SMA America LLC 3 Push the Quick Module carefully upwards to the stopper M The lug of the Quick module is flush with the lug of the bracket Check that the Quick Module is securely in place Close the SMA DC Disconnect see section 8 3 Closing the SMA DC Disconnect page 67 Commission the Sunny Boy see section 7 Commissioning page 63 The Quick Module is mounted ane 36 S B20_25_30HFUS eng IUS 113711 Installation Guide SMA America LLC Configuring the Sunny Boy 5 4 Configuration after installation If you would like to make configurations to the Sunny Boy although you already have installed the Quick Module to the Sunny Boy then proceed as follows 5 4 1
52. inverter wire black wire of the Sunny Boy to the terminal B 2 Connect the positive inverter wire red wire of the Sunny Boy to the terminal C Connecting the PV strings 3 Remove the screwless end block from the top hat rail left of the DC terminal block Mount three fuse holders to the top hat rail 5 Install fuses in the fuse holders The fuses must be functional and of the correct size Refer to section 14 Accessories page 108 fora specification of suitable fuses One and for more strir A r 6 Put the sticker delivered with the fuse holder plainly visible near by the fuse holder 7 Loosen the screws of the lower terminals of the fuses G in a counterclockwise direction 8 For each positive DC wire of the PV strings Feed in the wire from below into the terminal of a fuse G Tighten the terminal screw in a clockwise direction 9 Strip the ends of the additional wires on one side in accordance with the specifications of the fuse holder manufacturer 50 SB20_25_30HFUS eng IUS11371 1 Installation Guide SMA America LLC Wiring the Sunny Boy 10 11 12 13 14 15 16 17 18 Strip the ends of the additional wires on the other Y in side to a length of Ue in 12 mm
53. isconnect the Sunny Boy from Voltage Sources page 65 2 Open the SMA DC Disconnect see section 8 2 Open SMA DC Disconnect page 66 CAUTION Danger of burn injuries due to hot enclosure parts e Wait before disassembling until the enclosure has cooled down WARNING High voltages inside the SMA DC Disconnect Death or serious injuries After opening the SMA DC Disconnect there are still high voltages inside the SMA DC Disconnect at the DC contacts of the DC terminal block and at the contacts of the DC switch e Do not touch contacts at the DC terminal block and on the DC switch Using DC Terminal blocks Disconnect the wires to the DC terminal block as described in section 12 7 2 Disconnect wires from DC terminal block page 101 92 SB20_25_30HFUS eng IUS11371 1 Installation Guide SMA America LLC Decommissioning 3 Remove the grounded DC wire of the Sunny Boy from the terminal A 4 Remove the ungrounded DC wire of the Sunny Boy from the terminal B a One and T for more siring M The connection of the Sunny Boy on the DC side is removed Installation Guide SB20_25_30HFUS eng IUS11371 1 93 SMA America LLC Decommissioning Removing the connection of the Sunny Boy on the AC side 5 Re
54. ive inverter wire red wire of the Sunny Boy to the terminal C Connecting the PV strings 3 Connect the negative DC wires of the PV strings with a cross sectional area of of AWG 10 up to but not including AWG 8 10 mm to the terminal A 4 Ifa negative DC wire of the PV strings has a cross sectional area of AWG 8 10 mm to maximum AWG 2 35 mm E for more strings ai Completely loosen the screw of the screw clamp F turn the screw counterclockwise Feed in the DC wire from below into the screw clamp Tighten the screw of the screw clamp turn the screw clockwise 5 Connect the positive DC wires of the PV strings with a cross sectional area of AWG 10 up to but not including AWG 8 10 mm to the terminal D 6 Ifa positive DC wire of the PV strings has a cross sectional area of AWG 8 10 mm to maximum AWG 2 35 mm F z Completely loosen the screw of the screw clamp E turn the screw counterclockwise Feed in the DC wire from below into the screw clamp Tighten the screw of the screw terminal clockwise 46 SB20_25_30HFUS eng IUS11371 1 Installation Guide Wiring the Sunny Boy SMA America LLC Plug the equipment grounding conductor of the
55. lacing optional string fuses 6 eee eee 77 Inspecting and changing the varistors 0005 80 MESSAGES 62 66 cake esata deta deuce ee se nee A 82 Green LED is lit or flashes 2 2 0 0 0 cece eee 82 Update Messages 25 05au4i4dhSuevogwese caso bbaes 82 Error MGSsCGGstas Auda oa ack dca Pewee wnt od Ae eras 83 Troubleshooting 2 cece eee eee eee eeeees 88 Checking the PV array for Ground Fault 0 88 Correct Grounding Fuse Fault 00 000 e eae 89 Correct the Grounding Type 0000 e eee eens 90 Exchanging Grounding Fuse 00 000 eee eee eee 91 ACU oh seare EUSA 91 DECOMMISSIONING 5 ies 5 058 ot ca erin oem eae 92 Disassembling the Sunny Boy 00 000 cee eens 92 Disassembling SMA DC Disconnect 00 0000 95 Disassemble the Sunny Boy for Transport 100 Packaging the Sunny Boy n on anna annan aeaea 100 Storing the Sunny Boy nannaa ccc ene 100 Installation Guide SB20_25_30HFUS eng IUS11371 1 Table of Contents SMA America LLC 12 6 12 7 12 7 1 12 7 2 12 7 3 13 13 1 13 2 14 15 Disposing of the Sunny Boy 0 0 0 eee e eee eee 100 Supplementary Information 00 000 eee e eae 100 Connect wires to DC terminal block 0 00 c cece eee ee 100 Disconnect wires from DC terminal block 0 00 cee aaa 101 Disconnect wires from AC terminal block 0 000 c ee naaa 102 Techn
56. ll be positively grounded connect the SMA Plug in Grounding to the terminal socket so that the symbol shows to the front on the cap Push the SMA Plug in Grounding upwards until it clicks into place AS AE MM The SMA Plug in Grounding is installed Gp Make sure that the PV generator is connected a as described in section 6 3 Connection of the PV array DC page 43 Make sure that the PV strings are connected as described in section 6 4 Connection of PV strings without optional string fuses page 46 or if you use optional fuses as described in section 6 5 Connection of PV strings with optional fuses page 50 Close the SMA DC Disconnect see section 8 3 Closing the SMA DC Disconnect page 67 Commission the Sunny Boy see section 7 Commissioning page 63 Installation Guide SB20_25_30HFUS eng IUS11371 1 55 Wiring the Sunny Boy SMA America LLC 6 6 1 Configurable Grounding Parameters il Parameter names according to the type of communication Depending on the communication type Bluetooth or RS485 the inverter uses a different communication protocol and the parameters are displayed differently e Communication via Bluetooth and Sunny Explorer DATA II e Communication via RS485 DATA Two parameters are important for the grounding of the PV plant You can configure these parameters in the inverter via a communication device or a PC with the appropriate software e P
57. mounting bracket While hanging the Sunny Boy ensure that all cables of the inverter do not become trapped 2 Ensure the Sunny Boy is correctly in place on the wall mounting bracket and the SMA DC Disconnect MM The Sunny Boy is mounted onto the wall mounting bracket Installation Guide SB20_25_30HFUS eng IUS11371 1 27 Mounting the Device SMA America LLC 4 6 Grounding the SMA DC Disconnect The Sunny Boy is grounded via the connection of the grounding cable to the DC side and the AC side see section 6 Wiring the Sunny Boy page 40 To ensure proper grounding of the SMA Disconnect it must be connected with the Sunny Boy via an electric conductive connection This electric conductive connection has to be provided by a screw and a locking washer included in the scope of delivery 1 Lead the screw with locking washer facing teeth down into the opening of the Sunny Boy and screw into the thread of the SMA DC Disconnect turn the screw clockwise Sa amaiion see manual o Grounding Positive Grounding JUNDED UNGROUNDED ROUNDED GROUNDED UNDED Terminal 1 minal GROUNDED a acing Facing EE Mi The SMA DC Disconnect is connected to the Sunny Boy via an electric conductive connection 28 SB20_25_30HFUS e
58. move the N wire of the Sunny Boy from the A BCD terminal B 6 Remove the L1 wire of the Sunny Boy from the terminal C 7 Remove the L2 wire of the Sunny Boy from the terminal D 8 Remove the grounding cables of the Sunny Boy and from the PV plant both AC and DC side from the terminal block E 9 Remove the plug of the fan from the socket A FA i wee Loosening the connection of the Sunny Boy with the SMA DC Disconnect 10 Loosen the screw which is used for grounding of the SMA DC Disconnect counterclockwise Lay the screw to one side in such a way that it will not get lost The connection between Sunny Boy and SMA DC Disconnect is removed P bi n see manuel ll CAs Grounding Positive Grounding JUNDED UNGROUNDED ROUNDED GROUNDED UNDED Terminal TA GROUNDED acing Facing 94 SB20_25_30HFUS eng IUS11371 1 Installation Guide SMA America LLC Decommissioning 11 Remove the Sunny Boy from the wall mounting bracket using both hands The Sunny Boy is disassembled 12 2 Disassembling SMA DC Disconnect WARNING High voltages in the Sunny Boy Death or serious injuries e Cover the solar
59. n connected incorrectly reverse polarity or is Display message lt Wrong earthing type check earthing set gt Mmissing Correct the error as described in section 11 3 Correct the Grounding Type page 90 Red LED glows continuously Green LED glows continuously The inverter feeds into the grid 6 6 4 Parameter Prescribed grounding type or Md GndModReq Via the parameter Prescribed grounding type or Md GndModReaq you will be able to specify the required grounding type Default configuration for the parameter is Negative There are two ways to specify this parameter e Automatically When in learning mode the inverter automatically saves the grounding type of the plugged in SMA Plug in Grounding after 10 hours of operation e Manually You can change the grounding type you want to use via the communication tool Bluetooth RS485 after you have started up the inverter It is also possible to manually configure the parameter without the SMA Plug in Grounding There are four configuration options Value Explanation Default Value DATA II DATA 1 DATA II DATA I Positive GnadModPs The inverter only allows positive grounding Negative Negative GndModNg The inverter only allows negative grounding GndModNg None prescribed _ No specific grounding mode is required GndModNoneReq Learning GndModLrn The inverter detects the grounding and after 10 hours of operation with the plugge
60. nd no damage is visible but you doubt its proper functionality replace it with a new one il Changing operating parameter for grounding of the Sunny Boy The operating parameter of the Sunny Boy is preset to negative grounding When the grounding of the Sunny Boy must be changed to positive grounding you must change the operating parameter Cntry Mdul GndModReq of the Sunny Boy via a communication product Installing the SMA Plug in Grounding 1 Disconnect the Sunny Boy from voltage sources see section 8 1 Disconnect the Sunny Boy from Voltage Sources page 65 2 Open the SMA DC Disconnect see section 8 2 Open SMA DC Disconnect page 66 Check whether the SMA Plug in Grounding is screwed together hold the connection part of the SMA Plug in Grounding firmly and screw on the y cap of the SMA Plug in Grounding by hand 54 S B20_25_30HFUS eng IUS 113711 Installation Guide SMA America LLC Wiring the Sunny Boy M Both parts of the lock symbol on the connection part and on the cap of the SMA Plug in Grounding form the complete symbol of a lock 4 Ifthe PV array shall be negatively grounded connect the SMA Plug in Grounding to the terminal socket so that the symbol shows to the front on the cap Push the SMA Plug in Grounding upwards until it clicks into place If the PV plant sha
61. ng IUS11371 1 Installation Guide SMA America LLC Configuring the Sunny Boy 5 Configuring the Sunny Boy The Sunny Boy is fitted with the communication interface Quick Module You can configure the Quick Module before and after its installation to the Sunny Boy 5 1 The Quick Module The inverter is equipped with Bluetooth Wireless Technology This allows you to wirelessly request measurement event and meter information and to change parameters Inside the Quick Module are a slot for a SD card and 3 rotary switches with following functions e Rotary switches A and B for setting the country of installation the grid type and the display language see section 5 1 1 Country setting via rotary switch page 31 e Rotary switch C for the allocation of the NetID for communication via Bluetooth Wireless Technology see 5 2 2 Configuration for Bluetooth communication page 34 Protection against unauthorized access The inverter is delivered with preset plant passwords These passwords are the same for every inverter In order to protect the PV plant against unauthorized access change the preset plant passwords for the user groups Installer and User or deactivate Bluetooth completely by turning the NetID of the inverter to O see section Configuration for Bluetooth communication on page 34 You can only change the plant passwords using a computer equipped with Bluetooth and the Sunny Explorer software The S
62. nnect The following graphic shows the bottom of the SMA DC Disconnect Description Knob of SMA DC Disconnect Opening with protective cap AC side for 3 4 in 19 mm cable conduit Fan with fan bracket Handle of the fan bracket Opening with protective cap DC side for 3 4 in 19 mm cable conduit 42 SB20_25_30HFUS eng IUS11371 1 Installation Guide SMA America LLC Wiring the Sunny Boy 6 3 Connection of the PV array DC You can connect two PY strings directly to the terminal of the Sunny Boy If you need to connect 3 PV strings fuses as required by the National Electrical Code may be installed on the hat rail For additional information refer to section 6 5 Connection of PV strings with optional fuses page 50 WARNING You must connect the wires that carry the DC voltage from the PV array to the Sunny Boy in the order described in the following procedure Deviating from this procedure could expose you to lethal voltages that can cause serious injury and or death WARNING PV arrays are energized when exposed to light Use safe working practices when working on PV arrays WARNING Always turn OFF all AC breakers and switches in the PV system and wait a minimum of 5 minutes until the Sunny Boy is completely discharged and all LEDs are off before connecting any wires to the Sunny Boy or disconnecting any wires from the Sunny Boy Failure to do so could expose you to lethal voltages that can ca
63. nt point of the Sunny Boy is too low l l or if he agrees to changes in the values of For safety reasons the Sunny Boy the monitored operational limits i ts itself from the grid SETI disconnects itself from the grid If the grid voltage lies within the tolerance range yet this error is still being displayed contact the SMA Service Line Installation Guide SB20_25_30HFUS eng IlUS1 13711 83 Messages SMA America LLC Event No Display message and cause Corrective measures lt Grid fault gt e Check the grid voltage at the The average grid voltage over 10 minutes connection point of the Sunny Boy is no longer within the permissible range If due to local grid conditions the grid voltage exceeds the configured limiting value ask the utility operator whether the voltage can be adjusted at the feed in This can have the following causes e The grid voltage at the connection point of the Sunny Boy is too high point or whether he will agree to a The grid impedance at the modification of the limiting value for connection point of the Sunny Boy is voltage quality monitoring foe nigh If the grid voltage is continually within the The Sunny Boy disconnects from the grid to acceptable range and this error is stil assure compliance with the voltage quality displayed contact the SMA Service Line lt Grid fault gt e Check the grid connection for strong The Sunny Boy stop feeding in due to grid short te
64. nto the Wall mounting bracket Grounding the SMA DC Disconnect 0 00005 Configuring the Sunny Boy eeeeeeeees The Quick Module 5004 ccc cee cence eens eees Country setting via rotary switch 0 0 cc eee ne Configuring the Quick Module 0 0002 eee Installation Guide SB20_25_30HFUS eng IUS11371 1 Table of Contents Table of Contents SMA America LLC D2 5 2 2 5 2 3 5 3 5 4 5 4 1 J3 6 6 2 6 3 6 3 6 4 6 5 6 6 6 6 6 6 2 6 6 3 6 6 4 6 7 6 7 6 7 2 6 8 8 8 2 8 3 Configuration before installation 00 0 cee eee 33 Configuration for Bluetooth communication 0 cece eee 34 Cle cigs ui CAO E ie dunorsvreeedseaett 35 Mounting the Quick Module 00 00 e eee eee ee 35 Configuration after installation 0 000 cece eee ee 37 Opening the installed Quick Module 0 2 0 0 0c cece cee 37 Disassembling the Quick Module 00005 39 Wiring the Sunny Boy cee ee eee ceeees 40 GIGI autor s spade ahaa Eas e a aa sas 40 Lower view of the SMA DC Disconnect 004 42 Connection of the PV array DC 0005 A3 Installing cable conduits and leading cable into the Sunny Boy 44 Connection of PV strings without optional string fuses 46 Connection of PV strings with optional fuses 50 Installation of the SMA Plug in Grounding
65. odule properties are taken You will find further information in the download area of www SMA America com 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 Anti lslanding protection Islanding is a condition that can occur if the power distribution grid is disconnected while the Sunny Boy is operating and the remaining load is resonant at 60 Hz and matches the output of the Sunny Boy perfectly This condition is highly unlikely and had never been witnessed outside of a controlled laboratory Nevertheless the Sunny Boy incorporates an advanced active islanding protection algorithm to ensure that the system will not export power into a balanced 60 Hz resonant load while the utility is disconnected The Sunny Boy periodically injects both leading and lagging reactive current into the power distribution grid This method has been proven by Underwriters Laboratories to effectively destabilize and disconnect from a balanced island condition Installation Guide SB20_25_30HFUS eng IUS11371 1 13 Safety SMA America LLC PV ground fault detection and interruption The Sunny Boy is equipped with a ground fault detection device If a ground fault current greater than 1 Amp is detected the Sunny Boy will shut down and display the fault condition on the
66. of the SD Card e A maximum of 2 GB of storage space e Use the SD card exclusively for this Sunny Boy Do not save any other files on the SD card 30 SB20_25_30HFUS eng IUS11371 1 Installation Guide SMA America LLC Configuring the Sunny Boy 5 1 1 Country setting via rotary switch The switch position O O indicates the factory setting If you have ordered the Sunny Boy with a certain country or grid setting the setting is done in the factory via a communication device The setting will be overwritten by changes to the rotary switch or via a communication device and can not be recovered For orders without a specified installation country or grid type the standard setting is US auto with display language German Changes to configuration will immediately be accepted after switching on the line circuit breaker If an un programmed switch setting is selected the Sunny Boy issues an error message e Check whether the Sunny Boy is set to the installation country and grid type using the listed switch settings in the following table e For display language in English set the switch B to position 1 Display Language Once you have configured the country data set you can set the display language later without changing the country data set using rotary switch B Rotary switch positions The operating parameters show the corresponding parameter set You can read these off via a communication device or download them from www SMA
67. onditions 1 This device may not cause harmful interference and 2 this device must accept any interference received including interference that may cause undesired operation NOTE This equipment has been tested and found to comply with the limits for a Class B digital device pursuant to Part 15 of the FCC Rules These limits are designed to provide reasonable protection against harmful interference in a residential installation This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instructions may cause harmful interference to radio communications However there is no guarantee that interference will not occur in a particular installation If this equipment does cause harmful interference to radio or television reception which can be determined by turning the equipment off and on the user is encouraged to try to correct the interference by one or more of the following measures e Reorient or relocate the receiving antenna e Increase the separation between the equipment and the receiver e Connect the equipment into an outlet on a circuit different from that to which the receiver is connected e Consult the dealer or an experienced radio TV technician for help e The user is cautioned that changes or modifications not expressly approved by SMA America LLC could void the user s authority to operate this equipment Contact SMA for more information RF exposur
68. onnect only to a circuit provided with the required branch circuit overcurrent device sized in accordance with the National Electrical Code ANSI NFPA 70 The maximum size overcurrent device shall not be more than 20 amperes Installation Guide SB20_25_30HFUS eng IUS11371 1 59 Wiring the Sunny Boy SMA America LLC 6 7 2 Connecting the Sunny Boy on the AC side Use the following procedure to connect the AC wires to the Sunny Boy with the SMA DC Disconnect WARNING You must connect the wires that carry the AC voltage from the Sunny Boy to the power distribution grid in the order described in this procedure Deviating from this procedure could expose you to lethal voltages that can cause serious injury and or death Connecting the AC output of the Sunny Boy to the terminal block 1 Connect the N wire white wire of the Sunny Boy ABC to the terminal A 2 Connect the L1 wire black wire of the Sunny Boy to the terminal B 3 Connect the L2 wire red wire of the Sunny Boy to the terminal C n 1 s66 manual pii UNGROUNDED GROUNDED Terminal L GROUNDED 60 SB20_25_30HFUS eng IUS11371 1 Installation Guide SMA America LLC Wiring the Sunny Boy Connecting the AC cable of the power distribution grid and connecting the power supply of the fan 4 Connect the L1 wire o
69. ontact page 109 Installation Guide SB20_25_30HFUS eng IUS11371 1 87 Troubleshooting SMA America LLC 11 Troubleshooting 11 1 Checking the PV array for Ground Fault If the Sunny Boy displays the event number 35 see section 10 3 Error Messages page 83 then there is probably a ground fault in the PV array Check the strings for ground faults as described in the following 1 Disconnect the Sunny Boy from voltage sources see section 8 1 Disconnect the Sunny Boy from Voltage Sources page 65 2 Open the SMA DC Disconnect see section 8 2 Open SMA DC Disconnect page 66 NOTICE Excessive voltages can destroy measuring devices e Only use measuring devices with a DC input voltage range up to at least 600 V 3 Measure the voltages between the plus and minus pole for each string against the ground potential M If a voltage is found then there is a ground fault in the corresponding string l DANGER Danger to life due to voltage in the PV array Death or serious injuries Do not touch the frame of the PV array Do not connect strings with ground faults to the Sunny Boy e Wait until no voltage can be measured You can determine the approximate position of the ground fault from the ratio of the measured voltages between plus against ground potential and minus against ground potential 88 S B20_25_30HFUS eng IUS 113711 Installation Guide SMA America LLC Troublesho
70. oting Example The ground fault is between the second and third module in this case WARNING High voltages in the PV plant Death or serious injury due to electric shock e Only qualified personnel must carry out the installation of PV modules 4 The installer must remedy the ground fault in the respective string 5 Close the SMA DC Disconnect see section 8 3 Closing the SMA DC Disconnect page 67 6 Commission the Sunny Boy see section 7 Commissioning page 63 MM The PV array has been checked for ground faults 11 2 Correct Grounding Fuse Fault Proceed as follows to correct the error lt Ground fuse fault check ground fuse gt 7 Disconnect the Sunny Boy from voltage sources see section 8 1 Disconnect the Sunny Boy from Voltage Sources page 65 8 Open the SMA DC Disconnect see section 8 2 Open SMA DC Disconnect page 66 9 Make a note of the type of generator grounding or 10 Remove the SMA Plug in Grounding Turn it in counterclockwise direction and then pull it down 11 Check the PV array for a ground fault see section 11 1 Checking the PV array for Ground Fault page 88 12 Close the SMA DC Disconnect see section 8 3 Closing the SMA DC Disconnect page 67 Installation Guide SB20_25_30HFUS eng IUS11371 1 89 Troubleshooting SMA America LLC 13 14 15 16 17 18 19 Start operating the inverter without the SMA Plug
71. page 24 Installation Guide SB20_25_30HFUS eng IUS11371 1 23 Mounting the Device SMA America LLC 4 3 2 Mounting the wall mounting bracket 1 Position the wall mounting bracket against the wall where you intend to mount the Sunny Boy Try to mount the Sunny Boy so that the display is approximately at eye level Place a level on the top edge of the bracket and adjust the position of the bracket until it is level The enclosure bottom of the inverter will be located approximately 9 3 4 in 240 mm underneath the lower end of the wall mounting bracket Q DANGER Drilling into live cables Death or serious injury due to electric shock e Before drilling the holes check whether electricity cables run through the walls at the desired mounting location If cables run through the walls at the desired mounting location then select a different mounting location CAUTION Danger of crushing due to the Sunny Boy falling Crushing of body poarts e f mounting onto a wall ensure that the wall can carry the weight of the Sunny Boy e f mounting onto a wooden wall with studs ensure that the wall mounting bracket is firmly connected with all studs and the stud can carry the weight of the Sunny Boy 2 Using the wall mounting bracket as a template mark the wall through the holes in the horizontal or vertical portion of the bracket see section 4 3 1 Possibilities for mounting t
72. pollen can cause heat accumulation that can lead to yield losses Also check the Sunny Boy and the cables for visible external damage Undertake repairs if necessary 9 1 Checking Heat Dissipation If the Sunny Boy regularly reduces its output due to too high heat temperature symbol on the display illuminates this can be caused by the following CAUTION The cooling fins of the Sunny Boy become hot during operation Burn injuries will result when touching the fins e Wait for the Sunny Boy to cool down before checking the heat dissipation e The cooling fins on the rear side of the enclosure are clogged with dirt Clean the cooling fins with a soft brush e The fan is clogged with dirt Clean the fan 70 SB20_25_30HFUS eng IUS11371 1 Installation Guide SMA America LLC Maintenance and cleaning 9 1 1 Cleaning the fan If the fan enclosure is soiled with loose dust it can be cleaned using a vacuum cleaner For locating the fan refer to section Lower view of the SMA DC Disconnect on page 42 If you do not achieve satisfactory results with a vacuum cleaner you can dismantle the fan for cleaning If the enclosure and fan are dirtier proceed as follows 1 Disconnect the Sunny Boy from voltage sources see section 8 1 Disconnect the Sunny Boy from Voltage Sources page 65 2 Open the SMA DC Disconnect see section 8 2 Open SMA DC Disconnect page 66 Unlock 1 and pull out 2 the fan socket
73. r 35 Display message lt Ground fuse fault check ground fuse gt Red LED glows continuously Green LED blinks or disappears The inverter does not feed into the grid Event number 35 Display message lt Insulation resist check generator gt Red LED glows continuously Green LED blinks or disappears The inverter does not feed into the grid Event number 42 Display message lt Wrong earthing type check earthing set gt Red LED glows continuously Green LED blinks or disappears The inverter does not feed into the grid Installation Guide Cause Correction An overcurrent has occurred e Correct the error as described in section 11 2 Correct Grounding Fuse Fault page 89 An insulation fault has occurred e If an SMA Plug in Grounding is installed correct the fault as described in section 11 2 Correct Grounding Fuse Fault page 89 If the SMA Plug in Grounding is missing connect the SMA Plug in Grounding as described in section 6 6 Installation of the SMA Plug in Grounding page 54 The SMA Plug in Grounding has been connected incorrectly reverse polarity or is missing e Correct the error as described in section 11 3 Correct the Grounding Type page 90 SB20_25_30HFUS eng IUS11371 1 57 Wiring the Sunny Boy SMA America LLC Parameter Module grounding prescribed MdGndMdt Configuration No Event number 42 The SMA Plug in Grounding has bee
74. r exists over a long period of time the red LED begins to light and the multi function relay is switched if available Event No Display message and cause Corrective measures lt Grid fault gt e Check the grid voltage and the grid The grid voltage has over stepped the connection to the Sunny Boy permissible range This error can have the If the grid voltage lies outside the following causes acceptable range because of local grid e The grid voltage at the connection conditions ask the grid operator if the point of the Sunny Boy is too high voltage can be adjusted at the feed in point at or if he agrees to changes in the values of The grid impedance at the i l per __ the monitored operational limits connection point of the Sunny Boy is If the grid voltage lies within the tolerance range yet this error is still being displayed contact the SMA Service Line too high For safety reasons the Sunny Boy disconnects itself from the grid lt Grid fault gt Check for tripping of the line circuit The grid voltage has fallen below the breaker permissible range This error can have the Check the grid voltage and the grid following causes connection to the Sunny Boy e Grid disconnected If the grid voltage lies outside the e AC cable damaged acceptable range because of local grid conditions ask the grid operator if the e The grid voltage at the connection se voltage can be adjusted at the feed in poi
75. rademarks 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 Installation Guide SB20_25_30HFUS eng IUS11371 1 3 Important Safety Instructions SMA America LLC IMPORTANT SAFETY INSTRUCTIONS SAVE THESE INSTRUCTIONS This manual contains important instructions for models Sunny Boy 2OOOHF US 2500HF US 3000HF US 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 manual 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 1 DANGER DANGER indicates a hazardous situation whic
76. ration Depending on the type of system the array s negative or positive conductor is connected to the grounding system inside the inverter through the SMA Plug in Grounding as a part of the UL1741 listed ground fault detection system The GFDI protection is active whenever there is sufficient DC voltage to turn on the LCD in the Sunny Boy To commission the Sunny Boy follow these simple instructions 1 Make sure any covering placed over the PV array is removed 2 Ifa multifunction relay is present connect the multifunction relay power supply 3 Connect the grid voltage to the Sunny Boy by switching on the main AC circuit breaker in the main utility panel 4 Switch the SMA DCDisconnect to position On On Installation Guide SB20_25_30HFUS eng IUS11371 1 63 Commissioning SMA America LLC Display messages during initialization e First the firmware version of the internal processors appears in the text lines e After 5 seconds or after tapping the enclosure lid the serial number or the identifier of the inverter Lie He YVYVYV men Pee YYYY f w DUSE AAAA ANNN appears This identifier can be changed with a communications device e After another 5 seconds or when you tap again u the configured standard and the grid type are displayed e After another 5 seconds or when you tap again the configured language is displayed e In normal operation the scrolling lines are subsequently
77. rid is a grid which is not connected to a power distribution grid The Sunny Boy requires a grid forming device for example a Sunny Island for operation The energy generated is consumed directly on site Surplus energy can be stored in batteries using proper equipment AC and DC load circuit breaker Secure the AC and DC cables on the Sunny Boy with load circuit breakers With the AC and DC load circuit breakers you can safely disconnect the Sunny Boy from the grid and the PV arrays A DC load circuit breaker is included in the Sunny Boy delivery You must provide an AC load circuit breaker 12 SB20_25_30HFUS eng IUS 113711 Installation Guide SMA America LLC Safety Principle of a PV plant with this Sunny Boy A B C D E F V array Sunny Boy with integrated SMA DC Disconnect Line circuit breaker Load Energy meter Power distribution grid You must operate the Sunny Boy only with PV arrays modules and cabling of protection class Il 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 America com will assist you The manufacturer of the PV modules must have approved the modules for use with this Sunny Boy device You must also ensure that all measures recommended by the module manufacturer for long term maintenance of the m
78. rm frequency variations fault SMA Service Line lt Grid fault gt Check the grid connection for direct The internal inverter monitoring has current detected an impermissibly high proportion If this is a recurrent phenomenon of direct current in the grid current check with the grid operator whether itis possible to raise the limiting value of monitoring lt Frequency not permitted gt If possible check the grid frequency and observe how often major The grid frequency has left the allowable deviations occur range For safety reasons the Sunny Boy disconnects itself from the grid If repeated frequency variations occur and as a result this error occurs ask the grid operator if he agrees to a modification to the operating parameter Discuss the proposed parameters with the SMA Service Line 5 lt Grid fault gt e f possible check the grid frequency The grid frequency is not within the and observe how often major permissible range For safety reasons the deviations occur Sunny Boy disconnects itself from the grid If repeated frequency variations occur and as a result this error occurs ask the grid operator if he agrees to a modification to the operating parameter Discuss the proposed parameters with the 84 SB20_25_30HFUS eng IUS113711 Installation Guide SMA America LLC Messages Event No Display message and cause Corrective measures lt Wait for grid voltage gt Check fuse lt Grid
79. s with high ambient temperatures The individual Sunny Boy units must be far enough apart to ensure that the individual Sunny Boy units do not take in the cooling air of the neighboring unit If necessary increase the clearances and make sure there is enough ventilation to ensure sufficient cooling of the Sunny Boy units Do not install several Sunny Boy inverters on top of each other The Sunny Boy takes cooling air in from underneath and blows it out above through the cooling fins The heated air disperses upwards In case several Sunny Boy inverters are installed on top of each other the lower Sunny Boy blows the heated air into the Sunny Boy installed above This reduces the cooling efficiency and thus the yield of the upper Sunny Boy 4 3 Mounting the wall mounting bracket The Sunny Boy is shipped with a wall mounting bracket that is suitable for use with most walls The horizontal part of the bracket has 5 holes Make sure that the wall you choose to mount the Sunny Boy on is sturdy enough to support its weight 50 lbs 23 kg over a long period of time and that the wall is plumb Be sure to use the appropriate type of mounting hardware for the wall material and ensure that the hardware is no smaller than A in 6 mm in diameter Installation Guide SB20_25_30HFUS eng1IUS113711 21 Mounting the Device SMA America LLC Dimensions of the Wall Mounting Bracket as A E 8
80. see section 13 Technical Data page 103 Mount on a solid surface The mounting location must be accessible at all times Otherwise proper maintenance of the Sunny Boy is not possible i G 4 max 30 ea i Vertical installation or tilted backwards by max 30 The connection area must point downwards Never install the device with a forward tilt Do not install horizontally Install at eye level to allow operating status to be read at all times The ambient temperature must be below 113 F 45 C to ensure optimal operation Do not expose the Sunny Boy to direct sunlight in order 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 SB20_25_30HFUS eng IUS11371 1 Installation Guide SMA America LLC Mounting the Device e Observe the minimum clearances to walls other devices or objects as shown in the diagram in order to guarantee sufficient heat dissipation Overview minimum clearances for indoor installation Top 2 n 900 mm Fron in 50 mm Boom 10n 250 mm For outdoor installation make sure that the Sunny Boy has a clearance of 3 ft 90 cm from ground il Multiple Sunny Boy units installed in area
81. st only be carried out as described in this manual Observe all safety instructions listed on the Sunny Boy in this manual and those of the PV plant NOTICE Ingress of water when mounting and installing the Sunny Boy Damage of the Sunny Boy may result Do not open the Sunny Boy when it is raining Electrical installations All electrical installations must be done in accordance with all local electrical codes and the National Electrical Code ANSI NFPA 70 For installation in Canada the installations must be done in accordance with applicable Canadian standards For inverters provided with a fixed AC output The AC input and AC output circuits are isolated from the enclosure and system grounding if required by section 250 of the National Electric Code ANSI NFPA 70 is the responsibility of the installer The Photovoltaic System Grounding must be installed per the requirements of sections 690 41 through 690 47 of the National Electrical Code ANSI NFPA 70 and is the responsibility of the installer For optimum connection of the cables to the terminals Use a in x 43 4 in 3 5 mm x 120 mm screwdriver 40 SB20_25_30HFUS eng IUS11371 1 Installation Guide SMA America LLC Overview Connection Area A One and Two String Wiring for more strings and further information see manual Negative Grounding
82. sufficient DC voltage Measurements and the issuing of messages are only possible when there is sufficient DC voltage 10 2 Update Messages Appropriate display messages will be shown in the scrolling lines of the display in the event of an update Display Description lt Inst code valid gt The Inst Code entered is valid The configured country data set is now unblocked and can be changed If the configured country data set is protected the unlocking is valid for a maximum of 10 feed in hours lt No new update on the SD card gt There is no update file relevant for this Sunny Boy on the SD card or the available update has already been carried out lt Grid parameters not changed gt The selected switch setting is not programmed or there is no country data set available on the SD card lt Parameters were successfully set gt A new country data set has been configured lt Reading SD card gt The Sunny Boy is currently reading the SD card The Sunny Boy is setting the configured parameters lt Update complete gt The Sunny Boy has successfully completed the update lt Update file OK gt The file found is valid 82 SB20_25_30HFUS eng IUS11371 1 Installation Guide SMA America LLC Messages 10 3 Error Messages Appropriate display messages will be shown in the scrolling lines of the display if an event occurs By tapping on the enclosure lid the multi line messages can be switched further If an erro
83. t for higher sun irradiation lt Start conditions not achieved gt If this event recurs at medium sun The input power or the voltage of the irradiation check the PV plant design PV modules is not sufficient for feeding into the grid PV array and correct connection of the Installation Guide SB20_25_30HFUS eng IUS113711 85 Messages SMA America LLC Event No Display message and cause Corrective measures Wrong earthing type e Check the polarity of the SMA Plug in The SMA Plug in Grounding is not installed Grounding and refer to the inverter with the correct polarity setting of the grounding polarity parameter positive or negative 60 64 lt Self diagnosis gt Contact the SMA Service Line see 2 Dejicefadks section 15 Contact page 109 lt Self diagnosis gt e Ensure sufficient ventilation lt Overtemperature gt e Check heat dissipation as described in section 9 1 Checking Heat Sunny Boy switches off due to too high Dissipation page 70 temperature lt Self diagnosis gt Contact the SMA Service Line see 2Guedeads section 15 Contact page 109 lt Communication disturbed gt If this event occurs often A fault has occurred in the internal e Contact the SMA Service Line see communication of the inverter However section 15 Contact page 109 the Sunny Boy continues to feed in lt Self diagnosis gt e Contact the SMA Service Line see lt Input A defecti
84. t overcurrent AAC max 25 A protection Harmonic distortion of output current at Kugrid lt 2 Pac lt 0 5 Pacnom Nominal AC voltage UAC nom 183 V 229V AC grid frequency ener 60 Hz 59 3 Hz 60 6 Hz Power factor COS 9 1 Ovewohege E E E e a 374 RV soa sing Sapper i ee AkV Test surge voltage Installation Guide SB20_25_30HFUS eng IUS11371 1 103 Technical Data SMA America LLC Power distribution grid connection AC SB 2000HFUS SB 2500HFUS SB 3000HFUS data 30 30 30 inemnalconaimpronarnigh OOOO o ow 30 30 30 Dimensions including DC Disconnect 13 Y in x 28 g in x 7 4in Weight including DC Disconnect approximately 50 3 4 Ibs ia a Degree of protection Electronics NEMA 4X pei comcast Operating temperature range 13 F 140 F 25 C 60 C Max operating altitude 6 560 ft 3 000 m above mean sea level Topology ss HF p H ransformer o H ransformer o Cooling concept OptiCool OptiCool OptiCool Noise emission typical 38 dBA 38 dBA 38 dBA Conditions for full power output Ambient temperature range class 4K 4H 13 F 113 F 25 C 45 C Ambient air humidity range O 100 Ambient air pressure range 79 5 kPa 106 kPa Protective function DC side SB 2000HFUS SB 2500HFUS SB 3000HFUS 30 30 30 SMA DC Disconnec Ground fault handling GFDI DC reverse polarity protection Via short circuit diode Shortcircuit protec
85. t the Sunny Boy from voltage sources see section 8 1 Disconnect the Sunny Boy from Voltage Sources page 65 2 Open the SMA DC Disconnect see section 8 2 Open SMA DC Disconnect page 66 Remove the SMA Plug in Grounding Turn it in counterclockwise direction and then pull it down M The SMA Plug in Grounding is loosened from its bracket 4 KI Cle eu al Ml Q Aig lt 4 Hold the connection part of the SMA Plug in Grounding tightly loosen and remove the cap of the SMA Plug in Grounding p cy 74 SB20_25_30HFUS eng IUS11371 1 Installation Guide SMA America LLC Maintenance and cleaning 5 Using pliers pull out the fuse from the fuse holder of the SMA Plug in Grounding WARNING For continued protection against risk of fire replace only with the same type and ratings of fuse 600 VDC 1 A 6 Insert new fuse into the fuse holder of the SMA Plug in Grounding and push it firmly into the fuse holder 7 Hold the connection part of the SMA Plug in Grounding tightly replace the cap of the SMA Plug in Grounding and tighten by hand y M Both parts of the lock symbol on the connection part and on the cap of the SMA Plug in Grounding form the complete symbol of a lock Installation Guide SB20_25_30HFUS engIUS113711 75 Maintenance and cleaning SMA America LLC 8 10 11 76 If the PV plant shall be negatively grounded and is properly wired as descri
86. tion circuit Shortcircuit protection Current C Currentcontrl S All pole disconnection unit on power Automatic i cane device distribution grid side 104 SB20_25_30HFUS eng1IUS1 13711 Installation Guide SMA America LLC Technical Data Communication interfaces SB 2000HFUS SB 2500HFUS SB 3000HFUS 30 30 30 Quick Module 485QM optional galvanically isolated Efficiency SB 2000HFUS SB 2500HFUS SB 3000HFUS 30 30 30 CEC efficiency 96 5 96 5 UL 1741 UL 1998 IEEE 1547 CSA 22 107 Electromagnetic Compliance FCC Part 15 Class A amp B 13 1 Torque Values and Wire Sizes Terminal ints Nm Wire Size Cage Clamp AC Terminal AWG 12 8 pecamocosemea Screw Clamp DC Terminal 40 4 5 AWG 8 2 Blocks in DC Disconnect Cage Clamp DC Terminal AWG 10 8 Blocks DC Disconnect Screws for fastening the Sunny Boy and the DC Disconnect De Dacre Seve T E Optional String Fuse Holder AWG 10 8 Installation Guide SB20_25_30HFUS eng IUS11371 1 105 Technical Data SMA America LLC 13 2 Efficiency curves Sunny Boy 2000HF US Sunny Boy 2000HF US Efficency V 480VDC V 400VDC V 175 VDC weighted Eta weighted in accordance with CEC operating points 0 0 0 2 0 4 0 6 0 8 1 0 Output power Rated power Sunny Boy 2500HF US Efficency V 480VDC V 415 VDC Vw 220 V DC Vw V weighted Et
87. tional DC disconnects external to the inverter may be required by the local authority having jurisdiction WARNING Never remove a fuse while it is under load Electrical arcing and damage to the fuse holder will occur if a fuse is removed under load Installation Guide SB20_25_30HFUS eng IUS11371 1 77 Maintenance and cleaning SMA America LLC Replacing string fuses WARNING The PV string fuses become hot during operation Burn injuries will result when touching the fuses e Wait for the fuses to cool down after switching off the line circuit breaker and turning the DC Disconnect switch to position Off 1 Disconnect the Sunny Boy from voltage sources see section 8 1 Disconnect the Sunny Boy from Voltage Sources page 65 Open the SMA DC Disconnect see section 8 2 Open SMA DC Disconnect page 66 Open fuse holder 4 Take the fuse out of the fuse holder 78 SB20_25_30HFUS eng IUS11371 1 Installation Guide SMA America LLC Maintenance and cleaning WARNING For continued protection against risk of fire replace only with the same type and ratings of fuse 5 Insert new fuse into the fuse holder 6 Close fuse holder Repeat the replacement of fuse for each string Close the SMA DC Disconnect see section 8 3 Closing the SMA DC Disconnect page 67 Commission the Sunny Boy see section 7 Commissioning page 63 Oo ON The string fuses
88. to all of the C US 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 CAN CSA C22 2 No 107 1 1 Installation Guide SB20_25_30HFUS eng IlUS1 13711 5 General Warnings SMA America LLC 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 fan on the bottom of the enclosure For all repair and maintenance always return the unit to an authorized SMA Service Center Before installing or
89. unction of the SMA DC Disconnect secures the Sunny Boy against accidental reconnection during work on the PV plant 8 4 1 Secure Sunny Boy against reconnection 1 Turn the DC disconnect switch to the Lock off ai position symbol of a padlock M The handle of the DC disconnect switch pops out of the DC disconnect switch or St 2 Hang and lock a suitable padlock in the handle of AQ the DC disconnect switch Dimensions of the padlock B A maximum diameter of the shackle 2 in 6 mm TO B maximum Te in 18 mm C minimum i in 16 mm The Sunny Boy is mechanically secured against reconnection and against removing the cover 68 SB20_25_30HFUS eng IUS11371 1 Installation Guide SMA America LLC Opening and closing 8 4 2 Unlocking and switching on the Sunny Boy WARNING High voltages in the PV plant Death or serious injuries e Before reconnecting the Sunny Boy ensure that all work on the PV sytem is completed 1 Open and remove the padlock on the switch of the On SMA DC Disconnect switch 2 Push the handle of the SMA DC Disconnect into the SMA DC Disconnect and turn to the On position ofi i The Sunny Boy is unlocked and connected Installation Guide SB20_25_30HFUS eng IUS11371 1 69 Maintenance and cleaning SMA America LLC 9 Maintenance and cleaning Check the correct operation of the Sunny Boy at regular intervals Impurities such as dust or
90. unny Explorer user manual describes how to change the plant passwords You can download Sunny Explorer free of charge at www oMA America com Write down the new passwords and inform the user about it Quick Module 485QM and multi function relay You can purchase the Quick Module 485QM with RS485 interface and a multi function relay from SMA or your dealer see section 14 Accessories page 108 You will find detailed descriptions of the functions in the respective manual Installation Guide SB20_25_30HFUS eng IUS11371 1 29 Configuring the Sunny Boy SMA America LLC Identifying the Quick Module You can identify the Quick Module by its type label The type label is affixed at the lid of the Quick Module and shows name serial number version and type of the Quick Module Inner View of the Quick Module Description Rotary switch for configuration of country and grid type switch A Rotary switch for configuration of language and grid type switch B Rotary switch for configuration of Bluetooth communication Slot for SD card Jumper socket for the configuration of the language to English Slot for SD card The Quick Module contains a slot for an SD card The slot is on the outside of the Quick Module A To insert an SD card flip the lower flap upwards A In case of a firmware update an SD card is necessary Contact the SMA Service Line for details Properties
91. use serious injury and or death WARNING Electric shock as a result of incorrect array grounding before installation of the SMA Plug in Grounding Death or serious injuries The PV plant is only grounded when the inverter and the SMA Plug in Grounding are completely installed Leave the inverter disconnected on both the DC and AC sides until installation of the inverter and the SMA Plug in Grounding is completed WARNING Verify that the DC current of your installation does not exceed the maximum values specified in the type rating label Installation Guide SB20_25_30HFUS eng IlUS1 13711 43 Wiring the Sunny Boy SMA America LLC CAUTION Verify the polarity and the open circuit voltage from the PV strings before you connect the DC wires to the Sunny Boy Applying an open circuit DC input voltage that exceeds the maximum DC input voltage range will cause irreversible damage to the Sunny Boy and void the warranty Always configure the DC input voltage range correctly before connecting the DC input wires from the PV array to the Sunny Boy Use Sunny Design at www SMA America com to determine the correct string configuration Series fusing may be required depending on the type of PV module and the number of strings used in the system See National Electrical Code 690 9 Check both the polarity and the open circuit voltage from the PV strings 6 3 1 Installing cable conduits and leading cable into the Sunny Bo
92. 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 power distribution grid contact the local power distribution grid company This connection must be made only by qualified personnel 6 SB20_25_30HFUS eng IUS1 13711 Installation Guide SMA America LLC Table of Contents 1 1 1 1 2 1 3 1 4 2 2 1 2 2 2 3 2 4 3 3 1 3 2 4 4 1 4 2 4 3 4 3 1 4 3 2 4 4 4 5 4 6 5 5 1 5 1 1 5 2 Notes on this manual ccc cece e eee e eee MONCH er genes 22 asset dobet tne oa soreness co ee an ae VORGCTOQMOUD sci naslss te Ssted dole a eees Ko newe aad Additional information sic dncwnce vnded nd bh od So Nomenclature 00 00 cece ec eee cece bebe eee enes Appropridle Usage rarai aes aE E EVNENE Seeds eed does Saten INstrUChONSaisc ss scuse erates ei DEEE FCC Compliance Information 0 0000 cece eee Common utility voltage configurations 004 Unpacking and inspection 0 ceeceeeeees SCOPE Cr CEIIVENY crescere raapi onI NNE AEE ieee Identifying the Sunny Boy 0 0 cece cece ene Mounting the wall mounting bracket 004 Possibilities for mounting the wall mounting bracket 0 Mounting the wall mounting bracket 00 00 c cece eee eee Mounting the SMA DC Disconnect 00 00 e eee Mounting the Sunny Boy o
93. ve gt section 15 Contact page 109 lt Sensor fault fan on permanently gt Contact the SMA Service Line see section 15 Contact page 109 lt SD Card defective gt Re format the SD card Format the SD card with file system FAT32 e Re save the files to the SD card lt Parameter file not found or defective gt e Copy the parameter file into the Carddrive PARASET directory lt Parameter configuration unsuccessful gt e Check the parameters for valid values e Ensure change rights via Inst Code lt Update file defective gt e Re format the SD card e Re save the files to the SD card lt No update file found gt e Copy the update file into the SD Carddrive UPDATE directory 72 lt Data cannot be saved gt e If this fault occurs often contact the Internal device fault however the Sunny A SNIE Line see section Boy continues to feed in 15 Contact page 109 73 lt Main computer update not successful gt e Contact the SMA Service Line see hiema dence taoi section 15 Contact page 109 86 SB20_25_30HFUS eng IUS11371 1 Installation Guide SMA America LLC Messages Event No Display message and cause Corrective measures lt Bluetooth update not successful gt e Re try update Internal device fault however the e If this fault occurs again contact the Sunny Boy continues to feed in SMA Service Line see section lt Display update not successful gt
94. ve Grounding UNGROUNDED GROUNDED D Terminal Z GROUNDED Facing M Verify that all connections are correctly wired and properly clamped or torqued Pull the cables in order to make sure that they are sufficiently fixed The Sunny Boy is connected on the DC side ready to ground the PV plant positively The grounded conductor may be color coded in accordance with the il National Electrical Code article 200 Use electricians tape for coding the grounded conductor SB20_25_30HFUS eng IUS11371 1 Installation Guide Wiring the Sunny Boy SMA America LLC 6 5 Connection of PV strings with optional fuses By using optional fuses for the connection of the PV strings you can connect up to three PV strings to the Sunny Boy For this you must install fuse holders to the top hat rail next to the terminal block Requirements for installing optional fuses e Only use the fuse holders and fuses specified in section 14 Accessories on page 108 e Use 3 wires with a length of 10 in 254 mm and a size of AWG 8 10 mm These wires are not included in the delivery DC connection with a negatively grounded PV plant Connecting the Sunny Boy on the DC side Using DC Terminal blocks Connect the wires to the DC terminal block as described in section 12 7 1 Connect wires to DC terminal block page 100 1 Connect the negative
95. y CAUTION Ground faults unreliable and resistive connections due to faulty wire nuts e Avoid using wire nuts to join any wires together or to make any connections anywhere in the PV system NOTICE Ingress of water when mounting and installing the Sunny Boy Damage to the Sunny Boy will result e Do not enlarge openings for the cable conduits The openings are intended for the installation of inflexible cable conduits of a size of up to 7 in 19 mm For conduit hubs use only UL Listed raintight or wet location hubs of type 3R for entry into the enclosure 44 SB20_25_30HFUS eng IUS113711 Installation Guide SMA America LLC Wiring the Sunny Boy Installing cable conduit and cable on the DC side l Mi Turn the DC disconnect switch of the SMA DC Disconnect to position Off Loosen the screws on the enclosure of the SMA DC Disconnect Do not take the screws out of the lid Remove the lid to the front Lay the lid to one side in such a way that it will not become damaged MM The SMA DC Disconnect is open Push out the protective caps of the openings through which the DC cables are to be lead from the inside of the enclosure of the SMA DC Disconnect Install cable conduits 7 in 19 mm on the free openings of the SMA DC Disconnect Screw the cable conduits with counter nuts to the inner side of the SMA DC Disconnect Pull the cables of the PV strings and the cable of the ground

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