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Ampt String Optimizer

V1500-20-20
V1500-20-16

Installation Manual

57070012-1 J

©2021 Ampt LLC

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Summary of Contents for 31570020-1200

Page 1: ...Ampt String Optimizer V1500 20 20 V1500 20 16 Installation Manual 57070012 1 J 2021 Ampt LLC ...

Page 2: ...Copyright 2021 Ampt LLC All rights reserved 2 String Optimizer V1500 20 Platform Installation Manual 57070012 1 J ...

Page 3: ...ed use of Ampt trademarks is prohibited All other trademarks are the property of their respective owners U S and international patents apply to this product For details visit www ampt com patents Read This First To help avoid problems during the system installation familiarize yourself in advance with the installation process by reading this entire document before starting the installation Risk of...

Page 4: ...ure the safe installation and operation of the optimizer please be sure you carefully read and follow all instructions and safety messages in this manual SAVE THESE INSTRUCTIONS Safety Message Types The following messaging is used to identify a hazard to equipment or personnel DANGER Indicates a hazardous situation which if not avoided will result in death or serious injury WARNING Indicates a haz...

Page 5: ...tions for your region Failure to follow this manual will void warranty The Ampt product contains no user serviceable parts All repairs and maintenance should be handled in accordance with the instructions and terms contained in the product warranty Before installing or using the Ampt optimizer read all instructions and safety messages on the optimizer and in this manual Follow the safety precautio...

Page 6: ... cases under some statutes and thus the above exclusion may not apply The following information is subject to change without notice even though every attempt has been made to make this document complete accurate and up to date Readers are cautioned however that Ampt reserves the right to make changes without notice and shall not be responsible for any damages including indirect incidental or conse...

Page 7: ...o NOT transport optimizers that are removed from original packaging If the original packaging is no longer available use a similar box to protect the connectors and heat sink fins Quick Reference and Best Practices NOTICE The last page of this manual has a quick reference sheet for making electrical connections as well as a list of best practices This information is meant to be used as a reference...

Page 8: ...rations 14 PV Array Configurations 14 Ungrounded PV Arrays 14 Grounded PV Arrays positive or negative 14 Acceptable Input Configurations 15 Acceptable Input Configurations Between Parallel Optimizers 15 Fuses 15 DC coupled Storage 15 Inter row Shading Wiring Example 16 Chapter 3 Installing the String Optimizer 17 Getting Started 17 Parts and Tools Needed 17 Mounting and Grounding the String Optimi...

Page 9: ...9 FCC Compliance 30 RSS GEN 30 Avis IC 30 RSS GEN 30 Specifications 31 20 A models V1350 V1500 31 20 A models V1200 V1325 32 16 A models V1350 V1500 33 16 A models V1200 V1325 34 Reference Electrical Connection Order 35 Handling and Storage Best Practices 36 Mounting Best Practices 36 Electrical Connections Best Practices 36 Ampt Support Contacts 36 ...

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Page 11: ...allows the DC bus to operate at a higher fixed voltage so the converter only needs to buck when charging and boost when discharging This simplified operation reduces battery converter costs by up to 50 with less circuitry and a higher power density High DC AC Ampt s unique combination of output current limits and a higher DC bus voltage allows PV system designers to achieve optimal DC AC ratios up...

Page 12: ...1500 20 Platform Installation Manual 57070012 1 J Dimensional Drawings The dimensions for the String Optimizer shown below are in millimeters and inches Figure 1 Dimensional drawings 100 3 94 220 8 66 208 8 19 37 5 1 48 291 11 46 338 2 13 31 75 2 95 75 2 95 70 5 2 78 ...

Page 13: ...Bar Code Label The image below shows the bar code label with model and serial numbers Do NOT remove this label Removing any label from the optimizer voids warranty Figure 3 Bar code tag with the model and serial numbers Mounting holes 6 5 mm x 6 Input 2 connectors Input 1 connectors Output connectors Grounding stud 10 32 x 2 Bar code label Antenna for optional wireless communication ...

Page 14: ...oper operation of the String Optimizer NOTICE The inputs of the optimizer are not intended for connection to a battery or any other type of DC source except PV modules PV Array Configurations String Optimizers can be installed in ungrounded and resistively grounded PV systems Ungrounded PV Arrays Figure 4 Electrical connections for an ungrounded PV array Grounded PV Arrays positive or negative Fig...

Page 15: ...ber of modules on each input between parallel optimizers can vary within an array so long as they meet the criteria described in the Acceptable Input Configurations section Fuses CAUTION Over current protection devices and conductors shall be sized in accordance with the National Electrical Code ANSI NFPA 70 Canadian Electrical Code Part I or the applicable standards codes and regulations for your...

Page 16: ... J Inter row Shading Wiring Example When inter row shading is expected the best practice is to wire the modules on the two inputs of the Ampt String Optimizer to be on the same row as shown below Figure 6 Wiring example when inter row shading is expected Ampt String Optimizer not to scale to combiner to combiner ...

Page 17: ...t String Optimizer Read the entire chapter before starting the procedures and then conduct each task in the order given Parts and Tools Needed The mounting hardware varies by the type of PV module mounting rail Voltmeter rated for the PV system s maximum system voltage with DC current clamp Amphenol Sealing Caps H4 or UTX H4 Sealing Cap for female H4PF UTX Sealing Cap for female UTXF H4 Sealing Ca...

Page 18: ...tion Unit CU o Line of sight from the optimizer to the Ampt CU is recommended o See the Ampt CU manual for more information When possible mount optimizer in a location protected from the elements Leave connector sealing caps in place until the optimizers are ready to be connected to the PV string WARNING Read the warning statements below Installation and maintenance should be performed only by qua...

Page 19: ...nnectors Do NOT transport optimizers that are removed from packaging If the original packaging is no longer available use a similar box to protect the connectors and heat sink fins Steps 1 Read all warning caution and notice statements for this section 2 Mount the String Optimizer following the Mounting Considerations section 3 Ground the String Optimizer according to your local codes Use one of t...

Page 20: ...nector Polarity Always use the polarity markings on the faceplate instead of the polarity markings on the connectors Figure 8 Output connector polarity Optimizer Front View Optimizer Top View Output Mating Connectors Top View Use the polarity markings on the faceplate to avoid damaging the device Ignore polarity markings on the bulkhead connectors on the output ...

Page 21: ... of the Ampt equipment only to conductors with sufficient ampacity based on the maximum output fault current maximum optimizer output current for the chosen optimizer Over current protection devices and conductors shall be sized in accordance with the National Electrical Code ANSI NFPA 70 Canadian Electrical Code Part I or the applicable standards codes and regulations for your region Over current...

Page 22: ...s replaced by the rated voltage Connection Disconnection Order Matters Follow the proper connection disconnection order in the instructions to avoid damaging the device Connecting the Inputs 1 Read all warning caution and notice statements for this section 2 Make sure that the unit is properly mounted and grounded 3 Make sure the strings of PV modules that will be connected to the inputs of the op...

Page 23: ...ng mechanisms on the connectors are fully engaged Figure 10 Connecting Input 1 7 Follow your procedures and safety protocols to measure the voltage and verify the polarity for the string of modules being connected to Input 2 See Figure 9 8 Connect the series of modules for Input 2 to the String Optimizer Ensure that the locking mechanisms on the connectors are fully engaged Figure 11 Connecting In...

Page 24: ...t should be equal to the maximum value of the Output Voltage Range on the product label 15 volts If it is not replace the unit Figure 12 Verify proper installation 10 If you are connecting the output now then proceed to the next section Otherwise use Amphenol Sealing Caps to protect the connectors until the output is connected Optimizer output from PV string from PV string Output Voltage Range on ...

Page 25: ...e the output cables are appropriately terminated and not under load 5 If the output cable is already energized not isolated verify that the optimizer output voltage and output cable share the same potential and polarity 6 Connect the appropriate cables to the output of the String Optimizer Figure 13 Connecting the output connectors 7 Ensure that the locking mechanisms on all connectors are fully e...

Page 26: ...ions Do not make or break connections under load Voltage may be present on the output terminals when an input terminal is connected CAUTION Read that caution statements below The Ampt product contains no user serviceable parts All repairs and maintenance should be handled in accordance with the instructions and terms contained in the product warranty The surface of the optimizer may be hot NOTICE ...

Page 27: ...the String Optimizer is not under load 3 Follow your safety procedures and protocols to verify that there is zero current flowing through the optimizer circuit by using a current clamp to test each wire connected to Input 1 Input 2 and the output a If current is detected on any of these cables wait for zero irradiance and verify that there is zero current flowing through the optimizer circuit 4 If...

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Page 29: ...o be user serviced or opened in any way Model Numbering System The model numbers for Ampt String Optimizers are in the following format 31570020 xxxx 20A models ranging from 400 1500V 31570021 xxxx 16A models ranging from 400 1500V 31570022 xxxx 12A models ranging from 400 1500V where xxxx equals voltage of the unit e g 0750 is a V750 1325 is V1325 Markings ...

Page 30: ...rference including interference that may cause undesired operation of the device Avis IC Cet appareil est conforme à la partie 15 des règles de la FCC Son fonctionnement est soumis aux deux conditions suivantes 1 Ce dispositif ne peut causer des interférences nuisibles et 2 cet appareil doit accepter toute interférence reçue y compris les interférences qui peuvent provoquer un fonctionnement indés...

Page 31: ...ltage at full power V 1270 1295 1320 1345 1370 1395 1420 Output voltage at zero power V 1350 1375 1400 1425 1450 1475 1500 Maximum output current A 20 20 20 20 20 20 20 Maximum continuous output power kWdc 24 8 25 3 25 8 26 3 26 7 27 2 27 7 Efficiency max CEC Euro 99 6 99 5 99 4 Mechanical Input output connector Amphenol H4 Dimensions 13 31 x 8 66 x 3 94 338 mm x 220 mm x 100 mm Weight 11 6 lbs 5 ...

Page 32: ...1145 1170 1195 1220 1245 Output voltage at zero power V 1200 1225 1250 1275 1300 1325 Maximum output current A 20 20 20 20 20 20 Maximum continuous output power kWdc 21 8 22 3 22 8 23 3 23 8 24 3 Efficiency max CEC Euro 99 6 99 5 99 4 Mechanical Input output connector Amphenol H4 Dimensions 13 31 x 8 66 x 3 94 338 mm x 220 mm x 100 mm Weight 11 6 lbs 5 3 kg Ambient temperature operating range 40 F...

Page 33: ... full power V 1285 1310 1335 1360 1385 1410 1435 Output voltage at zero power V 1350 1375 1400 1425 1450 1475 1500 Maximum output current A 16 16 16 16 16 16 15 9 Maximum continuous output power kWdc 20 1 20 5 20 9 21 3 21 6 22 0 22 4 Efficiency max CEC Euro 99 6 99 5 99 4 Mechanical Input output connector Amphenol H4 Dimensions 13 31 x 8 66 x 3 94 338 mm x 220 mm x 100 mm Weight 11 6 lbs 5 3 kg A...

Page 34: ...1160 1185 1210 1235 1260 Output voltage at zero power V 1200 1225 1250 1275 1300 1325 Maximum output current A 16 16 16 16 16 16 Maximum continuous output power kWdc 17 7 18 1 18 5 18 9 19 3 19 7 Efficiency max CEC Euro 99 6 99 5 99 4 Mechanical Input output connector Amphenol H4 Dimensions 13 31 x 8 66 x 3 94 338 mm x 220 mm x 100 mm Weight 11 6 lbs 5 3 kg Ambient temperature operating range 40 F...

Page 35: ...e or break connections under load Ensure that there are no parallel connections to the string while series connections are being made Voltage may be present on the output terminals when an input terminal is connected Voltage builds as modules are connected in series Do not put stress on the optimizer connectors at any time The cable management method must prevent tension on each connector and move...

Page 36: ...cation keep the antenna located on the opposite side of the connectors clear from obstructions Line of sight from the optimizer to the Ampt Communication Unit CU is recommended See Ampt CU manual for more information Leave connector sealing caps in place until the optimizers are ready to be connected to the PV string Electrical Connections Best Practices Use only Amphenol mating connectors on inpu...

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Page 38: ...Copyright 2021 Ampt LLC All rights reserved 38 String Optimizer V1500 20 Platform Installation Manual 57070012 1 J ...

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