SMA sunny boy 2000hf-us Installation Manual Download Page 77

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SMA America, LLC

Maintenance and cleaning

Installation Guide

SB20_25_30HFUS-eng-IUS113711

9.3.2 Replacing optional string fuses

PV String Fuse Sizing

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. Additional DC disconnects external to the inverter may be
required by the local authority having jurisdiction.

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!

Refer to section 14 ”Accessories” (page 108) for a specification of suitable fuses.

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.

Summary of Contents for sunny boy 2000hf-us

Page 1: ...SB20_25_30HFUS eng IUS113711 IMUS SB20 30HFUS Version 1 1 CA US PV Inverter SUNNY BOY 2000HF US 2500HF US 3000HF US Installation Guide...

Page 2: ...xt Bluetooth connection to other Sunny Boys Input voltage input current Grid relay Grid event number Sunny Boy event number Power reduction due to excessive temperature Clean the fan if necessary Sunn...

Page 3: ...on 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 ma...

Page 4: ...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...

Page 5: ...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 instructio...

Page 6: ...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 conne...

Page 7: ...nspection 18 3 1 Scope of delivery 18 3 2 Identifying the Sunny Boy 18 4 Mounting the Device 19 4 1 Safety 19 4 2 Selecting the wall mounting location 20 4 3 Mounting the wall mounting bracket 21 4 3...

Page 8: ...uits and leading cable into the Sunny Boy 44 6 4 Connection of PV strings without optional string fuses 46 6 5 Connection of PV strings with optional fuses 50 6 6 Installation of the SMA Plug in Groun...

Page 9: ...in Grounding fuse 74 9 3 2 Replacing optional string fuses 77 9 4 Inspecting and changing the varistors 80 10 Messages 82 10 1 Green LED is lit or flashes 82 10 2 Update Messages 82 10 3 Error Messag...

Page 10: ...Boy 100 12 7 Supplementary Information 100 12 7 1 Connect wires to DC terminal block 100 12 7 2 Disconnect wires from DC terminal block 101 12 7 3 Disconnect wires from AC terminal block 102 13 Techn...

Page 11: ...oy 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 devi...

Page 12: ...nd 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 ni...

Page 13: ...fications 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 Islanding protection Islanding...

Page 14: ...00 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 Und...

Page 15: ...ous injury due to electric shock in the event of missing or damaged array grounding Comply with the local requirements for grounding the modules and the PV array Thoroughly connect and ground the gene...

Page 16: ...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...

Page 17: ...113711 17 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 r...

Page 18: ...ght side of the enclosure The serial number Serial No and the type Type Model of the Sunny Boy are specified on the type label Object Quantity Description A 1 Sunny Boy B 1 Wall mounting bracket C 1 I...

Page 19: ...mable construction materials Do not install the inverter in areas where highly flammable materials are stored Do not install the inverter in potentially explosive areas WARNING The Sunny Boy can becom...

Page 20: ...is not possible 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 lev...

Page 21: ...pe of mounting hardware for the wall material and ensure that the hardware is no smaller than 1 4 in 6 mm in diameter Top 12 in 300 mm Front 2 in 50 mm Bottom 10 in 250 mm Multiple Sunny Boy units ins...

Page 22: ...Mounting the Device SMA America LLC 22 SB20_25_30HFUS eng IUS113711 Installation Guide Dimensions of the Wall Mounting Bracket...

Page 23: ...the upper right side of the wall mounting bracket 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 Mo...

Page 24: ...ury due to electric shock 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 loca...

Page 25: ...ct switch of the SMA DC Disconnect to position Off 2 Loosen the screws on the enclosure of the SMA DC Disconnect Do not take the screws out of the lid 3 Remove the lid with the screws to the front 4 S...

Page 26: ...erica LLC 26 SB20_25_30HFUS eng IUS113711 Installation Guide 6 Push SMA DC Disconnect straight onto the wall 7 Ensure the SMA DC Disconnect is correctly in place The SMA DC Disconnect is mounted onto...

Page 27: ...ect and in the wall 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...

Page 28: ...nding 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 conductiv...

Page 29: ...on 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...

Page 30: ...e of the Quick Module A To insert an SD card flip the lower flap upwards In case of a firmware update an SD card is necessary Contact the SMA Service Line for details Object Description A Rotary switc...

Page 31: ...e using the listed switch settings in the following table For display language in English set the switch B to position 1 Rotary switch positions The operating parameters show the corresponding paramet...

Page 32: ...r 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...

Page 33: ...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 t...

Page 34: ...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 Set the arrow on the ri...

Page 35: ...odule 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...

Page 36: ...efully upwards to the stopper The lug of the Quick module is flush with the lug of the bracket 4 Check that the Quick Module is securely in place 5 Close the SMA DC Disconnect see section 8 3 Closing...

Page 37: ...n g Wiring for more string s and furthe r inform ation see manu al One and Two Strin g Wiring for more string s and furthe r inform ation see manu al DC DC Nega tive Grou nding Nega tive Grou nding Po...

Page 38: ...ick Module 8 Push the Quick Module carefully upwards to the stopper 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 Di...

Page 39: ...SMA DC Disconnect page 66 3 Pull the Quick Module carefully downwards to the stopper The Quick Module is completely visible 4 Lay two thumbs on the upper edge of the Quick Module and carefully push th...

Page 40: ...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...

Page 41: ...Openings for DC cable H Top hat rail for optional string fuses One and Two String Wiring for more strings and further information see manual One and Two String Wiring for more strings and further inf...

Page 42: ...he 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 a...

Page 43: ...ight 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 discha...

Page 44: ...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...

Page 45: ...w the cable conduits with counter nuts to the inner side of the SMA DC Disconnect 7 Pull the cables of the PV strings and the cable of the ground rod through the cable conduits Cable conduits on the D...

Page 46: ...uding AWG 8 10 mm to the terminal A 4 If a negative DC wire of the PV strings has a cross sectional area of AWG 8 10 mm to maximum AWG 2 35 mm Completely loosen the screw of the screw clamp F turn the...

Page 47: ...e sufficiently fixed 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 National Electrical Code article...

Page 48: ...positive DC wire of a PV string has a cross sectional area of AWG 8 10 mm to maximum AWG 2 35 mm Completely loosen the screw of the screw clamp F turn the screw counterclockwise Feed in the DC wire fr...

Page 49: ...y 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 National Electrical Code art...

Page 50: ...rter 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 4 Mount three fuse holders to the t...

Page 51: ...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...

Page 52: ...no functional fuses installed then install fully operative fuses 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...

Page 53: ...below into the screw clamp Close the screw clamp turn the screw clockwise 17 Plug the equipment grounding conductor of the PV plant into terminal B 18 If there is a grounding electrode conductor plug...

Page 54: ...section 8 2 Open SMA DC Disconnect page 66 3 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 cap of the SMA P...

Page 55: ...d 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 Commissio...

Page 56: ...e manufacturer as well as the regulations applicable at the installation location of the PV plant There are two configuration possibilities Parameter names according to the type of communication Depen...

Page 57: ...ribed in section 11 2 Correct Grounding Fuse Fault page 89 Event number 35 Display message Insulation resist check generator Red LED glows continuously Green LED blinks or disappears The inverter does...

Page 58: ...rounding There are four configuration options Parameter Module grounding prescribed MdGndMdt Configuration No Cause Correction Event number 42 Display message Wrong earthing type check earthing set Re...

Page 59: ...he 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 sec...

Page 60: ...terminal block 1 Connect the N wire white wire of the Sunny Boy 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 t...

Page 61: ...d Connect the neutral conductor from the power distribution grid to terminal D 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...

Page 62: ...ver 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...

Page 63: ...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 If a multi function relay is...

Page 64: ...k 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 displaye...

Page 65: ...function relay is present disconnect the multi function relay power supply 3 Turn the DC disconnect switch to position Off and wait 5 minutes until the capacitors of the Sunny Boy are discharged all...

Page 66: ...to the front 3 Lay the lid to one side in such a way that it will not become damaged The SMA DC Disconnect is open DANGER High voltages inside the SMA DC Disconnect Death or serious injuries After ope...

Page 67: ...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 c...

Page 68: ...ction during work on the PV plant 8 4 1 Secure Sunny Boy against reconnection 1 Turn the DC disconnect switch to the Lock off position symbol of a padlock The handle of the DC disconnect switch pops o...

Page 69: ...ove the padlock on the switch of the SMA DC Disconnect switch 2 Push the handle of the SMA DC Disconnect into the SMA DC Disconnect and turn to the On position The Sunny Boy is unlocked and connected...

Page 70: ...ke 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 followi...

Page 71: ...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 D...

Page 72: ...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...

Page 73: ...akes 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...

Page 74: ...f 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 8...

Page 75: ...n 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 Both parts of the l...

Page 76: ...changed N L1 L2 L1 N L2 L1L2 N One and Two String Wiring for more strings and further information see manual One and Two String Wiring for more strings and further information see manual DC Negative...

Page 77: ...ernal to the inverter may be required by the local authority having jurisdiction CAUTION The string fuse size must not be greater than the maximum fuse size rating of the PV module as provided on the...

Page 78: ...oy from Voltage Sources page 65 2 Open the SMA DC Disconnect see section 8 2 Open SMA DC Disconnect page 66 3 Open fuse holder 4 Take the fuse out of the fuse holder WARNING The PV string fuses become...

Page 79: ...holder 7 Repeat the replacement of fuse for each string 8 Close the SMA DC Disconnect see section 8 3 Closing the SMA DC Disconnect page 67 9 Commission the Sunny Boy see section 7 Commissioning page...

Page 80: ...pect 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 2 Open the SMA DC Disconnect...

Page 81: ...mission the Sunny Boy see section 7 Commissioning page 63 NOTICE Destruction of the inverter due to overvoltage If varistors are missing or damaged the inverter is not protected against overvoltages P...

Page 82: ...ata set is protected the unlocking is valid for a maximum of 10 feed in hours No new update on the SD card There is no update file relevant for this Sunny Boy on the SD card or the available update ha...

Page 83: ...he acceptable range because of local grid conditions ask the grid operator if the voltage can be adjusted at the feed in point or if he agrees to changes in the values of the monitored operational lim...

Page 84: ...5 Grid fault The grid frequency is not within the permissible range For safety reasons the Sunny Boy disconnects itself from the grid If possible check the grid frequency and observe how often major...

Page 85: ...ut voltage of the Sunny Boy before you re connect the Sunny Boy to the PV array 35 Isolation resistance The Sunny Boy has detected a ground fault in the PV array Check the strings for ground faults as...

Page 86: ...vice Line see section 15 Contact page 109 68 Self diagnosis Input A defective Contact the SMA Service Line see section 15 Contact page 109 70 Sensor fault fan on permanently Contact the SMA Service Li...

Page 87: ...is event occurs often Ensure sufficient ventilation Check heat dissipation as described in section 9 1 Checking Heat Dissipation page 70 90 Inst Code invalid The Inst Code entered personal installer p...

Page 88: ...C Disconnect page 66 3 Measure the voltages between the plus and minus pole for each string against the ground potential If a voltage is found then there is a ground fault in the corresponding string...

Page 89: ...fault check ground fuse 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 D...

Page 90: ...e SMA DC Disconnect see section 8 3 Closing the SMA DC Disconnect page 67 19 Start up the inverter again as described in section 7 Commissioning page 63 In this process the inverter checks whether the...

Page 91: ...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 t...

Page 92: ...ION Danger of burn injuries due to hot enclosure parts Wait before disassembling until the enclosure has cooled down WARNING High voltages inside the SMA DC Disconnect Death or serious injuries After...

Page 93: ...lation Guide SB20_25_30HFUS eng IUS113711 93 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 The connection of t...

Page 94: ...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 see ma...

Page 95: ...SMA DC Disconnect WARNING High voltages in the Sunny Boy Death or serious injuries Cover the solar modules Switch off the AC load disconnection switch Before dismounting the SMA DC Disconnect ensure t...

Page 96: ...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 ground...

Page 97: ...wise Pull the cables from the screw clamps C 4 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 Disconne...

Page 98: ...er distribution grid from the SMA DC Disconnect enclosure The cables of the power distribution grid are removed from the AC side of the SMA DC Disconnect iring rmation see manual One and Two String Wi...

Page 99: ...ing 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...

Page 100: ...ackaging 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 ha...

Page 101: ...k 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 wire...

Page 102: ...insulated screw driver into the rectangular opening under the spring terminal which should open 3 Push the screwdriver down and hold this position The spring terminal is open 4 Remove the wire from t...

Page 103: ...the input voltage Power distribution grid connection AC data SB 2000HFUS 30 SB 2500HFUS 30 SB 3000HFUS 30 AC nominal power PAC nom 2 000 W 2 500 W 3 000 W Max AC power PAC max 2 000 W 2 500 W 3 000 W...

Page 104: ...sea level Topology HF transformer Cooling concept OptiCool OptiCool OptiCool Noise emission typical 38 dBA 38 dBA 38 dBA Conditions for full power output class 4K4H Ambient temperature range 13 F 113...

Page 105: ...FUS 30 CEC efficiency max 90 96 5 96 5 Certificates UL 1741 UL 1998 IEEE 1547 CSA 22 107 Electromagnetic Compliance FCC Part 15 Class A B Terminal in lbs Nm Wire Size Cage Clamp AC Terminal Blocks in...

Page 106: ...Technical Data SMA America LLC 106 SB20_25_30HFUS eng IUS113711 Installation Guide 13 2 Efficiency curves Sunny Boy 2000HF US Sunny Boy 2500HF US...

Page 107: ...SMA America LLC Technical Data Installation Guide SB20_25_30HFUS eng IUS113711 107 Sunny Boy 3000HF US...

Page 108: ...485QM with RS485 interface 485QMUS 10 NR Optional Flush Mount Kit for surface flush installation MOUNT KIT 10 NR SMA Plug in Grounding stick as replacement for positive or negative connection to groun...

Page 109: ...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 957...

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Page 112: ...4 NFSJDB XXX 4 NFSJDB DPN...

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