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Copyright Enphase Energy Inc. 2008

Release 1.4

Installation and Operations Manual
Micro-Inverter M175-24-240-S

Release 1.4

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Summary of Contents for M175-24-240-S

Page 1: ...Page 1 Copyright Enphase Energy Inc 2008 Release 1 4 Installation and Operations Manual Micro Inverter M175 24 240 S Release 1 4 ...

Page 2: ... CA 94952 Phone 707 763 4784 Toll Free 877 797 4743 Fax 707 763 0784 www enphaseenergy com info enphaseenergy com Document Revision History Version Date Comments 1 0 01 16 08 Released 1 1 01 30 08 General edits 1 2 02 25 08 Final release edits 1 3 04 15 08 Updated Technical Data tables 1 4 06 16 08 Updated quick install guide ...

Page 3: ...icro Inverter Wiring Harnesses 7 Step 4 System Grounding 8 Step 5 Enphase Installation Map and Connecting the PV Modules 8 3 Commissioning 9 4 Operating Instructions 10 5 Troubleshooting 10 General Micro Inverter Error Reporting 10 Troubleshooting Suggestions for inoperable Micro Inverters 11 Disconnecting the Enphase Micro Inverter from the PV Module 11 6 Technical Data 12 M175 24 240 S Micro Inv...

Page 4: ...shall be done in accordance with all local electrical codes and the National Electrical Code NEC ANSI NFPA 70 Installations and replacement of Micro Inverters shall only be performed by qualified personnel The Enphase Micro Inverter contains no user serviceable parts Please return the unit to Enphase for maintenance Tampering with or opening the Enphase Micro Inverter will void the warranty Before...

Page 5: ...ters are designed to operate at full power at temperatures as high as 65 C 150 F The inverter housing is designed for outdoor installation and complies to the NEMA6 environmental enclosure rating standard NEMA6 rating definition Indoor or outdoor use primarily to provide a degree of protection against hose directed water and the entry of water during occasional temporary submersion at a limited de...

Page 6: ...ors may be ungrounded and energized when a ground fault is indicated Installation of the Enphase Micro Inverter System involves the following key steps 1 Installing the AC branch circuit junction box 2 Attaching the Enphase Micro Inverters to the racking 3 Connecting the Enphase Micro Inverter wiring harnesses 4 System Grounding 5 Enphase Installation map and Connecting the PV modules NOTE It is r...

Page 7: ...designed to operate with most 72 cell PV module configurations sometimes referred to as 24V modules Step 2 Attach the Enphase Micro Inverters to the Racking Mark the approximate centers of each PV module on the racking system Mount one Micro Inverter at each of these locations using hardware recommended by your PV racking vendor WARNING Allow a minimum of spacing between the top of the roof and th...

Page 8: ...odate a 6 10 AWG conductor Route a continuous Grounding Electrode Conductor through each of the Micro Inverters and AC branch circuit junction box to the NEC approved AC grounding electrode Note The AC output neutral is not bonded to ground inside the Micro Inverter Step 5 Enphase Installation Map and Connecting the PV Modules The Enphase Installation Map is designed to be a diagrammatic represent...

Page 9: ...ve their corresponding Micro Inverters Each Micro Inverter has been provided with two oppositely sexed Multi Contact DC plus and minus connectors First connect the positive DC wire from the PV module to the positive DC connector female socket of the Micro Inverter Then connect the negative DC wire from the PV module to the negative DC connector male socket of the Micro Inverter Repeat for all modu...

Page 10: ... the following troubleshooting steps in the event your PV system does not operate correctly WARNING The Enphase Micro Inverter contains no user serviceable parts Please return the unit to Enphase for maintenance General Micro Inverter Error Reporting Normal Operation Listen for six short beeps when AC or DC power is first applied to the Micro Inverter This indicates normal Micro Inverter operation...

Page 11: ... interconnection harness between all the Micro Inverters Verify each inverter is energized by the utility grid with the previous procedure Check the DC connections between the Micro Inverter and the PV module Verify the PV module DC voltage is within the allowable range shown in the Technical Data section of this manual Make sure that all the AC switches in the junction boxes are functioning prope...

Page 12: ...emperature of the cells is the lowest and the module is at open circuit not operating The maximum short circuit current rating of the module must be equal to or less than the maximum input DC short circuit current rating of the Micro Inverter A list of compatible PV modules is maintained on the Enphase website www enphaseenergy com M175 24 240 S Micro Inverter Operating Parameters Topic Unit Min T...

Page 13: ...5 Night Tare Loss mW 580 Storage temperature range C 25 65 Weight Lbs 4 0 Features Dimensions approximate 11 x 5 x 1 Enclosure environmental rating NEMA6 Cooling Convective no fan Communication Powerline Standard warranty term 10 years Compliance UL1741 IEEE1547 FCC Part 15 Class B Voltage and Frequency Limits for Utility Interaction Condition Simulated utility source Maximum time sec cycles at 60...

Page 14: ...Product but does not include labor costs related to un installing the Defective Product or re installing the repaired or replacement product The Limited Warranty also covers the costs of shipping repaired or replacement product from Enphase via a non expedited freight carrier selected by Enphase to locations within the United States including Alaska and Hawaii and Canada but not to other locations...

Page 15: ...r consequential damage caused by defects of other components of the solar system or 5 if the original identification markings including trademark or serial number of such Micro Inverter have been defaced altered or removed The Limited Warranty does not extend beyond the original cost of the Enphase Micro Inverter THE LIMITED WARRANTY IS THE SOLE AND EXCLUSIVE WARRANTY GIVEN BY ENPHASE AND WHERE PE...

Page 16: ...Page 16 Copyright Enphase Energy Inc 2008 Release 1 4 Quick Installation Guide ...

Page 17: ...Page 17 Copyright Enphase Energy Inc 2008 Release 1 4 Enphase Installation Map ...

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