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Copyright 2018-2020 Ampt, LLC.
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Ampt String Optimizer V1500 Series

Installation Manual: 57070012-1H

DC-coupled Storage

When used in DC-coupled storage applications, the optimizer does not function as a
blocking diode.

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

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Summary of Contents for String Optimizer V1500 Series

Page 1: ...Ampt String Optimizer V1500 Series Installation Manual 57070012 1 H hdpv org ...

Page 2: ...Copyright 2018 2020 Ampt LLC All rights reserved 2 Ampt String Optimizer V1500 Series Installation Manual 57070012 1H ...

Page 3: ...horized 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 Ri...

Page 4: ...nsure 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 h...

Page 5: ...lations 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 precaut...

Page 6: ...ll 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 con...

Page 7: ...tallation 15 Overview 15 Input Criteria 15 Acceptable Input Configurations 15 Acceptable Input Configurations Between Parallel Optimizers 15 PV System Configurations 16 Ungrounded PV Systems 16 Resistively Grounded PV Systems positive or negative 16 Fuse Sizes 16 DC coupled Storage 17 Inter row Shading Wiring Example 17 Output Connector Polarity 18 Chapter 3 Installing the Ampt String Optimizer 19...

Page 8: ...llation Manual 57070012 1H Appendix 29 Compliance 29 Model Numbering System 29 Markings 30 FCC Compliance 31 RSS GEN 31 Avis IC 32 RSS GEN 32 Reference Electrical Connection Order 33 Mechanical Installation Best Practices 34 Electrical Commissioning Best Practices 34 Ampt Support Contacts 34 ...

Page 9: ... Direct to Converter For DC coupled energy storage systems Ampt String Optimizers include Direct to Converter technology which 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...

Page 10: ...imizer V1500 Series Installation Manual 57070012 1H 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 11: ...al Overview Figure 2 Physical overview of the string optimizer Bar Code Label The image below shows the bar code label with model and serial numbers 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 ...

Page 12: ...00 0 1325 0 1350 0 1400 0 1450 0 1475 Maximum output current A 20 20 20 20 20 20 20 20 Max continuous output power kWdc 22 8 23 3 23 8 24 3 24 8 25 8 26 7 27 2 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 to 122 F 40 C to 50 C Cooling Conve...

Page 13: ...25 0 1350 0 1400 0 1450 0 1475 Maximum output current A 16 16 16 16 16 16 16 16 Max continuous output power kWdc 18 5 18 9 19 3 19 7 20 1 20 9 21 6 22 0 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 to 122 F 40 C to 50 C Cooling Convection E...

Page 14: ...Max continuous output power kWdc 14 9 15 2 15 8 16 4 16 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 to 122 F 40 C to 50 C Cooling Convection Environmental Environmental category Outdoor Pollution degree 2 Maximum operating altitude 3 984...

Page 15: ... type of DC source except PV modules The following information applies to 60 or 72 cell c Si p Si modules If you are using another type of module e g thin film please contact Ampt for configuration rules Acceptable Input Configurations It is common for inputs 1 and 2 to have the same number of modules i e In1 In2 However if the number of modules between inputs is different the following conditions...

Page 16: ... Electrical connections for a grounded PV system Fuse Sizes 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 region The output current limit of the Ampt String Optimizer eliminates the need for the 1 25 multiplication factor fo...

Page 17: ...plications the optimizer does not function as a blocking diode 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 18: ...henol H4 bulkhead connectors Use the polarity markings on the faceplate instead of the polarity markings on the connectors Figure 7 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 19: ... Ampt 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 Sealin...

Page 20: ... applicable standards codes and regulations for your region The Ampt optimizer is to be installed so that it is not expected to be contacted by persons CAUTION Keep connectors dry and clean Do not install Ampt String Optimizers in a location where they might be immersed in water Steps 1 Mount the String Optimizer to the rack using the mounting holes provided a See Dimensional Drawings on page 10 b...

Page 21: ...ution statements below To reduce the risk of fire connect the outputs 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 ap...

Page 22: ...ally connected to high voltage in the installation DANGER HIGH VOLTAGE or DANGER XXX V where XXX is replaced by the rated voltage Connecting the Inputs 1 Read the warning caution and notice statements starting on page 21 2 Make sure you are familiar with all sections in Chapter 2 and that the unit is properly mounted and grounded 3 Make sure the strings of PV modules that will be connected to the ...

Page 23: ...king 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 ...

Page 24: ...er It should be equal to the maximum value of the Output Voltage Range on the product label 15 volts If it is not contact Ampt 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: ...not under load 4 Connect the appropriate cables to the output of the String Optimizer Figure 13 Connecting the output connectors 5 Ensure that the locking mechanisms on all connectors are fully engaged 6 Ensure that the cable management method prevents tension on each optimizer connector at all times Figure 14 Verify that the connectors are fully engaged Use the polarity markings on the optimizer ...

Page 26: ...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 Read the not...

Page 27: ...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 no current is detected then use the Amphenol H4 connector u...

Page 28: ......

Page 29: ...eant to 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 ...

Page 30: ... C 50 C 40 C 50 C 40 C 50 C 40 C 50 C 40 C 50 C 40 C 50 C 40 C 50 C 40 C 50 C Enclosure type IP 66 4X IP 66 4X IP 66 4X IP 66 4X IP 66 4X IP 66 4X IP 66 4X IP 66 4X 16A Models V1250 16 V1275 16 V1300 16 V1325 16 V1350 16 V1400 16 V1450 16 V1475 16 Ampt model number 31570021 1250 31570021 1275 31570021 1300 31570021 1325 31570021 1350 31570021 1400 31570021 1450 31570021 1475 Maximum voltage per in...

Page 31: ... 40 C 50 C 40 C 50 C 40 C 50 C 40 C 50 C 40 C 50 C Enclosure type IP 66 4X IP 66 4X IP 66 4X IP 66 4X IP 66 4X FCC Compliance This device complies with part 15 of the FCC Rules Operation is subject to the following two conditions 1 This device may not cause harmful interference and 2 this device must accept any interference received including interference that may cause undesired operation IMPORTA...

Page 32: ...PORTANT Les changements ou modifications non expressément approuvés par Ampt LLC pourraient annuler l autorité de l utilisateur à utiliser l équipement Model 1500V FCC ID X3R 1500V IC 8399A 1500V RSS GEN L émetteur récepteur exempt de licence contenu dans le présent appareil est conforme aux CNR d Innovation Sciences et Développement économique Canada applicables aux appareils radio exempts de lic...

Page 33: ...tenance including without limitation the risk of electric shock Follow your safety procedures and protocols Do not make 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 stre...

Page 34: ...er and water ingress o Transport optimizers that are removed from packaging o Mount optimizers with connectors facing upwards o Mount optimizers directly to a solar module frame o Drill into optimizer frame to expand mounting holes Electrical Commissioning Best Practices Be sure to only use Amphenol connectors on input and output wires that are connected to optimizer Only use Amphenol crimping too...

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Page 36: ...Copyright 2018 2020 Ampt LLC All rights reserved 36 Ampt String Optimizer V1500 Series Installation Manual 57070012 1H ...

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