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M215 Installation and Operation



141-00012 Rev 06

Step 6: Ground the Microinverters (if required)

This step is required only for M215-60-2LL-S22, S23, and S24. It is not required for M215-60-2LL-
S22-IG, S23-IG, or S24-IG.

Each

M215-60-2LL-S22, S23, and S24

comes with a grounding cleat (wire connector) that can

accommodate a 6-8 AWG GEC (grounding electrode conductor). Check local requirements for allowable
grounding conductor sizes.

NOTE

: Ground the system in accordance with all applicable local electrical codes and the

National Electrical Code (NEC), ANSI/NFPA 70.

NOTE

: CSA has evaluated and approved the Wiley E

lectronics “WEEB” grounding

washers for use with the Enphase Microinverter. Compatible grounding washer part
numbers and installation guidelines are included in the

Racking Compatibility List

NOTE

: The AC output neutral is not bonded to ground inside the microinverter.

Route a continuous GEC through each of the microinverters to the NEC-approved AC
grounding electrode.

You can ground the PV racking and PV module to this conductor using a listed wire
connector approved for the purpose.

Torque the 10/32 grounding cleat screw to 2 N m (20 to 25 in-lbs). Do not over torque.

NOTE

: Using a power screwdriver to tighten the grounding clamp screw is not

recommended due to the risk of thread galling.

Содержание M215-60-2LL-S22

Страница 1: ...INSTALLATION AND OPERATION MANUAL 141 00012 Rev 06 Enphase M215 Microinverter ...

Страница 2: ...ined by turning the equipment off and on you are encouraged to try to correct the interference by one or more of the following measures Reorient or relocate the receiving antenna Increase the separation between the equipment and the receiver Connect the equipment into an outlet on a circuit different from that to which the receiver is connected Consult the dealer or an experienced radio TV technic...

Страница 3: ...gage Cable 17 Step 5 Attach the Microinverters to the PV Racking 18 Step 6 Ground the Microinverters if required 19 Step 7 Dress the Engage Cable 20 Step 8 Connect the Microinverters 21 Step 9 Terminate the Unused End of the Engage Cable 22 Step 10 Connect the Engage Cable to AC Junction Box es 23 Step 11 Complete the Installation Map 24 Step 12 Connect the PV Modules 24 Commissioning and Operatio...

Страница 4: ...echnical Data 35 Technical Considerations 35 Specifications 35 M215 60 2LL S22 IG S23 IG and S24 IG Specifications 35 M215 60 2LL S22 S23 or S24 Specifications 37 Engage Cable Specifications 39 Enphase Installation Map 40 Sample Wiring Diagram M215 240 VAC 41 Sample Wiring Diagram M215 208 VAC 42 ...

Страница 5: ...ons carefully WARNING This indicates a situation where failure to follow instructions may result in burn injury NOTE This indicates information particularly important for optimal system operation Follow instructions closely Safety Instructions DANGER Before installing or using the Enphase Microinverter read all instructions and cautionary markings in the technical description on the Enphase Microi...

Страница 6: ...erly closed WARNING The microinverter must be installed 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 Do not install the microinverter black side up or vertically with the DC connectors facing up WARNING When installing the Engag...

Страница 7: ...ith the braces NOTE If you need to remove a sealing cap you must use the Enphase disconnect tool or a 3 Phillips screwdriver Sealing caps may not be reused NOTE The M215 works with 240 VAC single phase utility service or with 208 VAC three phase utility service NOTE When installing the Engage Cable and accessories adhere to the following Do not expose the terminator cap or cable connections to dir...

Страница 8: ...round fault protection GFP is integrated into the microinverter Because of this the M215 60 2LL IG does not require a GEC As a result it takes less time to install than other microinverters saves money and increases safety If you are installing the M215 60 2LL S22 S23 or S24 this microinverter requires a GEC or other compliant grounding method The three key elements of an Enphase Microinverter Sys...

Страница 9: ... Reliability 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 The microinverter housing is designed for outdoor installation and complies with...

Страница 10: ... cell module if the voltage and current from of the module stays within allowable ranges for the microinverter to perform safely notably in warm climates For more information see Technical Data on page 35 of this manual Refer also to the Enphase Compatibility Calculator at http enphase com module compatibility calculator m250 update to ensure PV module electrical compatibility To ensure mechanical...

Страница 11: ...al 106 to 132 VAC Branch Circuit Capacity Plan your AC branch circuits to meet the following limits for maximum number of M215s per branch when protected with a 20 amp over current protection device OCPD Maximum number of M215s when protected with a 20 A OCPD Service type Max M215s per AC branch circuit Split phase 240 VAC 17 Three phase 208 VAC 25 Lightning and Surge Suppression Enphase Microinve...

Страница 12: ...ing and Ordering on page 32 NOTE Order the correct Engage Cable type Installers must order Engage Cable for either single phase 240 VAC typical for residential applications or three phase 208 VAC typical for commercial installations All drop connectors on the Engage Cable bear labels indicating the cable voltage designation Cable clips Sealing caps as needed for any unused drops on the Engage Cabl...

Страница 13: ...ach the Microinverters to the PV Racking Step 6 Ground the Microinverters if required Step 7 Dress the Enphase Engage Cable Step 8 Connect the Microinverters Step 9 Terminate the Unused End of the Engage Cable Step 10 Connect the Engage Cable to AC Junction Box es Step 11 Complete the Installation Map Step 12 Connect the PV Modules WARNING Always de energize the AC branch circuit before servicing ...

Страница 14: ...Phone f Under Location enter the Country and address information g Under Envoy select the Internet Connection type and enter the Envoy Serial Number NOTE If you have selected a country other than the US or if you select Hawaii as the state under Location the Grid Profile menu appears h If required select the appropriate profile from the Grid Profile menu Skip this step in the continental US becaus...

Страница 15: ...nect the Envoy to power and Internet according to the Envoy Quick Install Guide b Wait for the Web indication on the Envoy s LCD screen c Leave the Envoy running while you install the microinverters so that any required Envoy software upgrade completes BEST PRACTICE When powered up and connected for the first time the Envoy may retrieve an automatic upgrade from Enphase Because this upgrade may ta...

Страница 16: ...Since the same current is flowing through each resistance the total voltage rise is total current times the total resistance For a single phase system the total resistance is equal to two times the one way resistance For a three phase system each of the three line currents and resistances must be calculated Standard guidelines for voltage rise on feeder and AC branch circuit conductors might not b...

Страница 17: ...AC service 240 VAC Engage Cable at sites with 240 VAC single phase service b Plan the cable route so that the drop connectors on the Engage Cable align with each PV module Allow extra length for slack cable turns and any obstructions c Measure the path of the AC branch circuit and cut a length of Engage Cable to meet your needs d Lay the Engage Cable along the route it will travel positioning the ...

Страница 18: ...croinverter WARNING You must install the M215 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 Do not install the microinverter black side up or vertically with the DC connectors facing up f Mount one microinverter at each location ...

Страница 19: ...trical Code NEC ANSI NFPA 70 NOTE CSA has evaluated and approved the Wiley Electronics WEEB grounding washers for use with the Enphase Microinverter Compatible grounding washer part numbers and installation guidelines are included in the Racking Compatibility List NOTE The AC output neutral is not bonded to ground inside the microinverter a Route a continuous GEC through each of the microinverters...

Страница 20: ...ble clips or you may use tie wraps The cable clips are designed so that the cable from the microinverter can also be dressed into the clip underneath the Engage Cable NOTE There are two release holes in the drop connector on the cable These are not for mounting but are used to disconnect the connector Keep these release holes clear and accessible b Dress the Engage Cable so that it does not contac...

Страница 21: ...mporary shipping cap to cover unused connectors The shipping cap does not provide an adequate environmental seal Enphase sealing caps are required to protect against moisture ingress Enphase sealing caps are IP67 rated Within the term IP67 IP indicates an Ingress Protection IP rating against dust and liquids This specific rating of IP67 indicates that this connector protects against all dust parti...

Страница 22: ...and in the prescribed manner Make sure that all seals are seated correctly in the wire organizer When stripping off the cable sheath make sure that the conductors are not damaged If the conductors are damaged proper system function cannot be assured a Strip at least 60 mm 2 5 inches of the shielding from the conductors b Slide the hex nut onto the Engage Cable c Insert the Engage Cable all the way...

Страница 23: ...ition to conduit between smaller sub arrays Refer to the wiring diagrams on page 41 for more information Wire colors are listed in the following table 240 Volt AC Split Phase Wiring 208 Volt AC Three Phase Wiring Black L1 Red L2 White Neutral Green Ground Black L1 Red L2 Blue L3 White Neutral Green Ground NOTE The green wire acts as equipment ground EGC NOTE Because the DC circuit is isolated and ...

Страница 24: ... the installation map for your records b Draw a top down view of the array using the Array Map template Make sure to leave enough room to place the serial number stickers c When installing the microinverters remove the serial number labels located next to the DC input cables and place them in the correct order on your drawing of the system Remember to keep a copy of the installation map for your r...

Страница 25: ...able voltage and frequency trip points If adjustments are required by your local utility the installer can use the Envoy to Manage the Grid Profile after all microinverters have been detected Check the Envoy s progress Refer to the Envoy Quick Install Guide for details on the following steps 1 An automatic device scan runs for 8 hours after the Envoy is installed If this scan has expired start a n...

Страница 26: ...tion To scan and upload the map and build the array 1 Scan the installation map and upload it to the Activation form online 2 Use Array Builder to create the virtual array in Enlighten Use the installation map created in Installation step 10 as your reference NOTE Go to http enphase com support videos to view the Array Builder demo 3 If you do not already have an account go to http www enphase com...

Страница 27: ...dicates that the microinverter is not receiving messages from the Envoy but is otherwise operating normally The microinverter senses that the utility grid is within voltage frequency specifications Flashing Red Indicates that the microinverter is not operating normally The microinverter does not sense that the utility grid is within voltage frequency specifications The microinverter cannot produce...

Страница 28: ...shooting procedures Troubleshoot an Inoperable Microinverter To troubleshoot an inoperable microinverter follow the steps in the order shown WARNING Always de energize the AC branch circuit before servicing Never disconnect the DC connectors under load Disconnect DC connections first and then disconnect the AC connections WARNING The Enphase Microinverters are powered by DC power from the PV modul...

Страница 29: ... the grid is present See page 27 for normal LED operation 10 Attach an ammeter clamp to one conductor of the DC cables from the PV module to measure microinverter current This will be under one Amp if AC is disconnected 11 Verify the PV module DC voltage is within the allowable range shown in Specifications on page 35 of this manual 12 Swap DC leads with a known good adjacent PV module If after ch...

Страница 30: ... while pulling gently to disengage If the disconnect tool is not available insert a 3 Phillips screwdriver into one hole and rock that side of the drop connector out Then insert the screwdriver into the other hole and pull the connector out entirely 3 Cover the PV module with an opaque cover 4 Using a clamp on meter verify there is no current flowing in the DC wires between the PV module and the m...

Страница 31: ...be discarded and a new grounding washer must be used when installing the replacement microinverter 5 If you are using a grounding electrode conductor attach it to the microinverter ground cleat Torque the 10 32 grounding cleat screw to 2 N m 20 to 25 in lbs Do not over torque NOTE Using a power screwdriver to tighten the grounding clamp screw is not recommended due to the risk of thread galling 6 ...

Страница 32: ...f PV racking systems For a list of approved PV racking systems refer to the 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 two connector spacing options Depending upon installer needs the cable is also available in different lengths Connector Spacing Options The gap betw...

Страница 33: ...0 208 VAC 5 conductor 30 1 7 m 67 Landscape 15 9 kg 35 lbs ET10 240 BULK 240 VAC 4 conductor 240 1 025 m 40 Portrait over 90 kg 200 lbs ET17 240 BULK 240 VAC 4 conductor 240 1 7 m 67 Landscape over 90 kg 200 lbs ET10 208 BULK 208 VAC 5 conductor 240 1 025 m 40 Portrait over 90 kg 200 lbs ET17 208 BULK 208 VAC 5 conductor 240 1 7 m 67 Landscape over 90 kg 200 lbs Planning for Cable Lengths and Type...

Страница 34: ...dditional cabling length Account for bend radius When planning cabling turns or loops you must account for a minimum bend radius of 4 75 inches 12 cm Consider additional cabling when installing multiple sub arrays Often an AC branch circuit may be composed of several smaller sub arrays across more than one roof plane In this case cut the cable to service each smaller array and connect the sub arra...

Страница 35: ...le depends on the quantity size and temperature of the PV cells as well as the insulation on each cell The highest PV module output voltage occurs when the temperature of the cells is the lowest and the PV module is at open circuit not operating The maximum short circuit current rating of the PV module must be equal to or less than the maximum input DC short circuit current rating of the microinve...

Страница 36: ...t frequency range Hz 59 3 60 60 5 Extended AC output frequency range Hz 57 60 61 Maximum AC output over current protection device A 20 Maximum AC output fault current duration Arms cycles 1 05 Arms over 3 cycles 1 04 Arms over 5 cycles High AC Voltage trip limit accuracy 2 5 Low AC Voltage trip limit accuracy 4 0 Frequency trip limit accuracy Hz 0 1 Trip time accuracy cycles 2 Miscellaneous Parame...

Страница 37: ... term http enphase com warranty Compliance UL1741 IEEE1547 FCC Part 15 Class B CAN CSA C22 2 NO 0 M91 0 4 04 and 107 1 01 Integrated ground no GEC required The DC circuit meets the requirements for ungrounded PV arrays in NEC 690 35 Ground fault protection GFP is integrated into the microinverter Integrated DC disconnect The DC connector has been evaluated and approved for use as the load break di...

Страница 38: ...rms Arms 0 9 1 1 Nominal AC output frequency range Hz 59 3 60 60 5 Extended AC output frequency range Hz 57 60 60 5 Maximum AC output over current protection device A 20 Maximum AC output fault current duration Arms cycles 1 05 Arms over 3 cycles 1 04 Arms over 5 cycles High AC Voltage trip limit accuracy 2 5 Low AC Voltage trip limit accuracy 4 0 Frequency trip limit accuracy Hz 0 1 Trip time acc...

Страница 39: ... 15 Class B CAN CSA C22 2 NO 0 M91 0 4 04 and 107 1 01 Integrated DC disconnect The DC connector has been evaluated and approved for use as the load break disconnect required by the NEC Integrated AC disconnect The AC connector has been evaluated and approved for use as the load break disconnect required by the NEC Engage Cable Specifications Specification Value System temperature range ambient 40...

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