enphase M250 Installation And Operation Manual
M-series enphase microinverter
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Summary of Contents for enphase M250
- Page 1 INSTALLATION AND OPERATION MANUAL M-Series Enphase Microinverter (M250 and M215) 141-00024, Rev 02b...
- Page 2 Other Information Product information is subject to change without notice. All trademarks are recognised as the property of their respective owners. User documentation is updated frequently; Check the Enphase website (http://www.enphase.com/support) for the latest information. For warranty text refer to http://www.enphase.com/warranty.
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Page 3: Table Of Contents
Step 1: Register the System .......................... 14 Step 2: Connect the Envoy Communications Gateway ................. 15 Step 3: Position the Enphase Engage™ Cable ..................... 16 Step 4: Install an AC Junction Box......................... 17 Step 5: Attach the Microinverters to the Mounting Rail .................. 18 Step 6: Dress the Engage Cable ........................ -
Page 4: Important Safety Information
Refer to product instructions. Safety and Advisory Symbols To reduce the risk of electric shock, and to ensure the safe installation and operation of the Enphase® Microinverter, the following safety symbols appear throughout this document to indicate dangerous conditions and important safety instructions. -
Page 5: Microinverter Safety
PV modules. Microinverter Safety WARNING: Risk of Skin Burn. The body of the Enphase Microinverter is the heat sink. Under normal operating conditions, the temperature is 15°C above ambient, but under extreme conditions the microinverter can reach a temperature of 80°C. To reduce risk of burns, use caution when working with microinverters. -
Page 6: Engage Cable And Accessory Safety
NOTE: When looping the Engage Cable, do not form loops smaller than 12 cm in diameter. NOTE: If you need to remove a sealing cap, you must use the Enphase disconnect tool or a screwdriver. Sealing caps may not be reused. -
Page 7: The Enphase Microinverter System
The Enphase Microinverter System System™ is the world’s most technologically advanced inverter system for ® The Enphase Microinverter use in utility-interactive applications. The three key elements of an Enphase Microinverter System include the: Enphase Microinverter Communications Gateway™ ®... -
Page 8: How The Microinverter Works
Microinverter systems are inherently more reliable than traditional inverters. The distributed nature of a microinverter system ensures that there is no single point of system failure in the PV system. Enphase Microinverters are designed to operate at full power at ambient temperatures as high as 65 C (150 F). -
Page 9: Planning For Microinverter Installation
* To centre-feed a branch, divide the circuit into two sub-branch circuits protected by a single overcurrent protection device (OCPD). Utility Service Requirements The Enphase Microinverter works with single phase or three phase 230 Vac service. Measure AC line voltage at the electrical utility connection to confirm that it is within the ranges shown: Single-Phase Service... -
Page 10: Lightning And Surge Suppression
BEST PRACTICE: Connect the Envoy before the solar installation is complete. When powered up and connected for the first time, the Envoy may retrieve an automatic upgrade from Enphase. Because this upgrade may take up to 20 minutes, connect the Envoy first (connect to both AC power and to the broadband router) so that the upgrade completes well before the solar module installation is complete. -
Page 11: Example Single-Phase Design
The following installation diagram shows an example with four branches. The single-phase design shows four centre-fed branches with 14 microinverters each. The PV modules are in landscape orientation. Tables following the diagram list required and optional equipment for this example. 2016 Enphase Energy. All rights reserved. 141-00024 Rev 02b... -
Page 12: Enphase Items Needed For Example Design
Torque wrench, sockets, wrenches for mounting hardware as needed Adjustable wrench or open-ended wrench (for terminator caps) as needed Inspection mirror as needed (for viewing indicator lights on the undersides of the microinverters) 2016 Enphase Energy. All rights reserved. 141-00024 Rev 02b... -
Page 13: Enphase Microinverter Installation
WARNING: Risk of electric shock. Risk of fire. Always de-energise the AC branch circuit before servicing. Never disconnect the DC connectors under load. WARNING: DO NOT connect Enphase Microinverters to the electricity network or energise the AC circuit(s) until you have completed all of the installation procedures as described in the following sections. -
Page 14: Step 1: Register The System
For more information on Grid Profiles or if you need to change the grid profile subsequent to this initial procedure, see the Envoy Communications Gateway Installation and Operation Manual at: http://www.enphase.com/support. 2016 Enphase Energy. All rights reserved. 141-00024 Rev 02b... -
Page 15: Step 2: Connect The Envoy Communications Gateway
BEST PRACTICE: When powered up and connected for the first time, the Envoy may retrieve an automatic upgrade from Enphase. Because this upgrade may take up to 20 minutes, connect the Envoy first at the site (connect to both AC power and the broadband router) so that it performs the upgrade well before the solar module installation is complete. -
Page 16: Step 3: Position The Enphase Engage™ Cable
PV module widths vary by manufacturer. On the Engage Cable, connectors are spaced at intervals to allow for the widest PV modules compatible with Enphase Microinverters. If narrower PV modules are used, it may be necessary to account for excess cable by looping the cable at suitable intervals. -
Page 17: Step 4: Install An Ac Junction Box
DANGER: Risk of electric shock. Be aware that installation of this equipment includes risk of electric shock. Do not install the AC junction box without first removing AC power from the Enphase System. WARNING: Only use electrical system components approved for wet locations. -
Page 18: Step 5: Attach The Microinverters To The Mounting Rail
Do not over torque. You may also earth the mounting rail and PV module to this conductor using a crimp connection. NOTE: The AC output neutral is not bonded to earth inside the microinverter. 2016 Enphase Energy. All rights reserved. 141-00024 Rev 02b... -
Page 19: Step 6: Dress The Engage Cable
NOTE: When looping the Engage Cable, do not form loops smaller than 12 cm in diameter. CAUTION: Tripping Hazard. Loose cables can become a tripping hazard. Dress the Engage Cable to minimise this potential. 2016 Enphase Energy. All rights reserved. 141-00024 Rev 02b... -
Page 20: Step 7: Connect The Microinverters
AC connectors. Unused AC connectors are live when the system is energised by the electricity network. Sealing caps may not be reused. NOTE: If you need to remove a sealing cap, you must use the Enphase disconnect tool or a screwdriver. See “Disconnect a Microinverter” on page 28. Sealing caps may not be reused. -
Page 21: Step 8: Terminate The Unused End Of The Engage Cable
Place cap over the wire organiser. g. Hold the cap with an Enphase disconnect tool, or insert a #2 Phillips screwdriver. h. Use a 22 mm (7/8 inch) spanner to tighten the hex nut until the latching mechanism is screwed all the way to the base. -
Page 22: Step 9: Connect The Engage Cable To Ac Junction Box
Balanced 400 Vac (3-phase) is accomplished by alternating phases between microinverters as shown: WARNING: Risk of electric shock. Treat all connector contacts as though they are live. The 400 Vac Engage Cable drop connector contains two live phases. 2016 Enphase Energy. All rights reserved. 141-00024 Rev 02b... -
Page 23: Step 10: Complete The Installation Map
You can build the system map manually, by peeling the serial number labels from the microinverters and placing the labels on the installation map, or you can use the scanning tool feature from the Enphase Installer Toolkit to easily build and configure a system. Refer to http://enphase.com/installer-toolkit/... -
Page 24: Commissioning And Operation
1. Turn ON the AC disconnect or circuit breaker (such as an isolation switch) for each microinverter AC branch circuit. 2. Turn ON the main AC switch. 3. The Enphase Microinverters will begin communicating over the power lines to the Envoy. The time required for the Envoy to discover all of the... -
Page 25: Configure The Grid Profile
PV system. It also shows detailed current and historical performance information. Go to http://www.enphase.com for more information on the Enphase Enlighten web-based monitoring and analysis. To scan and upload the map and build the array: 1. -
Page 26: Troubleshooting
Adhere to all the safety measures described throughout this manual. Qualified personnel can use the following troubleshooting steps if the PV system does not operate correctly. WARNING: Risk of electric shock. Do not attempt to repair the Enphase Microinverter; it contains no user-serviceable parts. If it fails, contact Enphase customer service to obtain an RMA (return merchandise authorisation) number and start the replacement process. -
Page 27: Troubleshoot An Inoperable Microinverter
DC connectors under load. CAUTION: The Enphase Microinverters are powered by DC power from the PV modules. Make sure you disconnect the DC connections and reconnect DC power to watch for the solid green about six seconds after connection to DC power and then six short green LED blinks two minutes after connection to DC power. -
Page 28: Disconnect A Microinverter
NOTE: Take care when measuring DC current, as most clamp-on meters must be zeroed first and tend to drift with time. 5. Disconnect the PV module DC wire connectors from the microinverter using the Enphase disconnect tool. 6. If present, loosen the earth screw and remove the earthing electrode conductor. -
Page 29: Install A Replacement Microinverter
WARNING: Risk of equipment damage. You must install the Enphase Microinverter under the module, out of rain and sun. Do not mount the microinverter in a position that allows long-term exposure to direct sunlight or in a vertical orientation that allows water to collect in the DC connector recess. -
Page 30: Engage Cable Planning And Ordering
PV Racking Compatibility document on the Enphase website (http://www.enphase.com/support). Selecting Cable Type Enphase Engage Cable is available in two different voltage types and multiple connector spacing options. Depending upon installer needs, the cable is also available in different lengths. Connector Spacing Options Engage Cable for is available in three connector spacing options. -
Page 31: Voltage Type And Conductor Count Options
Account for the number of Enphase Microinverters to be installed on the AC branch circuit. Make sure to allocate the correct number of connectors, including extra connectors for gaps and turns. - Page 32 PV modules in landscape orientation, but requires that any additional cable length between PV modules in portrait orientation be coiled and dressed so that cabling does not contact the roof. Cover unused connectors with Enphase watertight sealing caps.
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Page 33: Technical Data
WARNING: Risk of equipment damage. You must match the DC operating voltage range of the PV module with the allowable input voltage range of the Enphase Microinverter. WARNING: Risk of equipment damage. The maximum open circuit voltage of the PV module must not exceed the specified maximum input voltage of the Enphase Microinverter. -
Page 34: M250-72 Specifications
Dynamic MPPT efficiency (weighted, EN 50530) start up and 99.8 shut down Night Tare Loss 0.065 Dimensions and Weight Dimensions, not including mounting bracket (approximate) 17.9 cm x 17.2 cm x 2.8 cm Weight 1.66 Kg 2016 Enphase Energy. All rights reserved. 141-00024 Rev 02b... -
Page 35: M250-60 Specifications
Dynamic MPPT efficiency (weighted, EN 50530) start up and 99.8 shut down Night Tare Loss 0.055 Dimensions and Weight Dimensions, not including mounting bracket (approximate) 17.9 cm x 17.2 cm x 2.8 cm Weight 1.66 Kg 2016 Enphase Energy. All rights reserved. 141-00024 Rev 02b... -
Page 36: M215-60-230-S25E And -S22E Specifications
Dynamic MPPT efficiency (weighted, EN 50530) start up and 99.8 shut down Night Tare Loss 0.055 Dimensions and Weight Dimensions, not including mounting bracket (approximate) 17.9 cm x 17.2 cm x 2.8 cm Weight 1.66 Kg 2016 Enphase Energy. All rights reserved. 141-00024 Rev 02b... -
Page 37: M215-60-230-S22 Specifications
99.8 50530) start up and shut down Night Tare Loss Dimensions and Weight Dimensions, not including mounting 17.2 cm x 16.4 cm x 2.5 cm bracket (approximate) Weight 1.6 Kg 2016 Enphase Energy. All rights reserved. 141-00024 Rev 02b... -
Page 38: Engage Cable Specifications
Three-phase 400 Vac 16 amperes Engage Cable bundle diameter 1.1 cm Drop connector dimensions 11.8 cm x 6.0 cm x 3.2 cm Terminator dimensions 3.6 cm diameter x 5.1 cm tall 2016 Enphase Energy. All rights reserved. 141-00024 Rev 02b... -
Page 39: Enphase Installation Map
M-Series Microinverter Installation and Operation Enphase Installation Map 2016 Enphase Energy. All rights reserved. 141-00024 Rev 02b... -
Page 40: Sample Schematic - 230 Vac, Single-Phase
Enphase Microinverter Installation and Operation Sample Schematic – 230 Vac, Single-Phase 2016 Enphase Energy. All rights reserved. 141-00024 Rev 02b... -
Page 41: Sample Schematic - 230 Vac, Three-Phase
M-Series Microinverter Installation and Operation Sample Schematic – 230 Vac, Three-Phase 2016 Enphase Energy. All rights reserved. 141-00024 Rev 02b... - Page 42 Enphase Microinverter Installation and Operation Corporate Headquarters Contact Information Enphase Energy Inc. 1420 N. McDowell Blvd. Petaluma, CA 94954 http://www.enphase.com info@enphaseenergy.com...