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13100152
CITY OF CUPERTINO BUILDING PERMIT BUILDING ADDRESS: 7655 DUMAS DR CONTRACTOR-T--B'D'-=TO'BE PERMIT NO:13100152 -TERMINER OWNER'S NAME: PAUL CHENG DATE ISSUED:10/23/2013 OWNER'S PHONE: PHONE NO: ❑ LICENSED CONTRACTOR'S DECLARATION JOB DESCRIPTION: RESIDENTIAL El COMMERCIALE] License Class`✓?P, , Lie.# ��a`7��7 INSTALL 18 PANELS ON ROOFTOP,4.23 KW Contractor /fid'//�f �lQj� Date I hereby affirm that I am licensed under the provisions of Chapter 9 (commencing with Section 7000)of Division 3 of the Business&Professions Code and that my license is in full force and effect. I hereby affirm under penalty of perjury one of the following two declarations: I have and will maintain a certificate of consent to self-insure for Worker's Compensation,as provided for by Section 3700 of the Labor Code,for the performance of the work for which this permit is issued. Sq.Ft Floor Area: Valuation:$19623 I have and will maintain Worker's Compensation Insurance,as provided for by 1�' Section 3700 of the Labor Code,for the performance of the work for which this APN Number:35925047.00 Occupancy Type: permit is issued. APPLICANT CERTIFICATION I certify that I have read this application and state that the above information is PERMIT EXPIRES IF WORK IS NOT STARTED correct.I agree to comply with all city and county ordinances and state laws relating WITHIN 180 DAYS OF PERMIT ISSUANCE OR to building construction,and hereby authorize representatives of this city to enter upon the above mentioned property for inspection purposes. (We)agree to save 180 DAYS FROM LAST CALLED INSPECTION. indemnify and keep harmless the City of Cupertino against liabilities,judgments, costs,and expenses which may accrue against said City in consequence of the 1,1 � granting of this permit. Additionally,the applicant understands and will comply Issued by: Date: with all non-point source regdarhyris per the Cupertino Municipal Code,Section 9.18. RE-ROOFS: Si Date— All roofs shall be inspected prior to any roofing material being installed.If a roof is ell installed without first obtaining an inspection,I agree to remove all new materials for inspection. ❑ OWNER-B ER DECLARATION Signature of Applicant: Date: I hereby affirm that I am exempt from the Contractor's License Law for one of the following two reasons: ALL ROOF COVERINGS TO BE CLASS"A"OR BETTER I,as owner of the property,or my employees with wages as their sole compensation, will do the work,and the structure is not intended or offered for sale(Sec.7044, Business&Professions Code) I,as owner of the property,am exclusively contracting with licensed contractors to HAZARDOUS MATERIALS DISCLOSURE construct the project(Sec.7044,Business&Professions Code). I have read the hazardous materials requirements under Chapter 6.95 of the California Health&Safety Code,Sections 25505,25533,and 25534. I will I hereby affirm under penalty of perjury one of the following three maintain compliance with the Cupertino Municipal Code,Chapter 9.12 and the declarations: Health&Safety Code,Section 25532(a)should I store or handle hazardous I have and will maintain a Certificate of Consent to self-insure for Worker's material. Additionally,should I use equipment or devices which emit hazardous Compensation,as provided for by Section 3700 of the Labor Code,for the air contaminants as defined by the Bay Area Air Quality Management District I performance of the work for which this permit is issued. will maintain compliance with the Cupertino Municipal Code,Chapter 9.12 and I have and will maintain Worker's Compensation Insurance,as provided for by the Health&Safety Code,Sections 25505,255", d 25534. Section 3700 of the Labor Code,for the performance of the work for which this /� permit is issued. Owner or authorized ages .�, _Date= dJ � I certify that in the performance of the work for which this permit is issued,I shall not employ any person in any manner so as to become subject to the Worker's Compensation laws of California. If,after making this certificate of exemption,I CONSTRUCTION LENDING AGENCY become subject to the Worker's Compensation provisions of the Labor Code,I must I hereby affirm that there is a construction lending agency for the performance of forthwith comply with such provisions or this permit shall be deemed revoked. work's for which this permit is issued(Sec.3097,Civ C.) Lender's Name APPLICANT CERTIFICATION Lender's Address I certify that I have read this application and state that the above information is correct.I agree to comply with all city and county ordinances and state laws relating to building construction,and hereby authorize representatives of this city to enter upon the above mentioned property for inspection purposes.(We)agree to save ARCHITECT'S DECLARATION indemnify and keep harmless the City of Cupertino against liabilities,judgments, costs,and expenses which may accrue against said City in consequence of the I understand my plans shall be used as public records. granting of this permit.Additionally,the applicant understands and will comply with all non-point source regulations per the Cupertino Municipal Code,Section Licensed Professional 9.18. Signature Date CONSTRUCTION PERMIT APPLICATION COMMUNITY DEVELOPMENT DEPARTMENT•BUILDING DIVISION ` 10300 TORRE AVENUE•CUPERTINO, CA 95014-3255 CUPERTINO (408)777-3228•FAX(408)777-3333•baild€IIa(a�cupPrtirlo.arg ❑NEW CONSTRUCTION ❑ ADDITION ❑ ALTERATION/TI ❑ REVISION/DEFERRED ORIGINAL PERMIT# PROJECT ADDRESS APN# OWNERNAME / P C' � F CONTACT NAME / PHONE E-MAIL STRE ADDRESS CITY,STATE ZIP FAX ❑OWNER ❑ OwNER-BuiLDER ❑ OWNER AGENT ❑ CONTRACTOR ❑CONTRACTOR AGENT ❑ ARCHITECT ❑ENGINEER ❑ DEVELOPER ❑TENANT CONTRACTOR NAME LTC SE ER LICENSE TYPE BUS.LIC# Ael COMPANYNME E-MAIL FAX STREET DDRE CI ,STATE,ZIP PHONE -j. ARCHITECT/ENGINEER NAME LICENSE NUMBER BUS.LIC# COMPANY NAME E-MAIL FAX STREET ADDRESS CITY,STATE,ZIP PHONE DESCRIPTION OF A,� - l , EXISTINGUSE PROPOSED USE CONSTR.TYPE #STORIES USE TYPE OCC, SQ.FT. VALUATION($) EX[STG NEW FLOOR DEMO TOTAL AREA AREA AREA NET AREA BATHROOM KITCHEN OTHER REMODEL AREA REMODEL AREA REMODEL AREA PORCH AREA DECK AREA TOTAL DECK/FORCH AREA GARAGE AREA: EIDETACH ❑ATTACH #DWELLING UNITS: IS A SECOND UNIT ❑YES SECOND STORY []YES BEING ADDED? ❑NO ADDITION? []NO PRE-APPLICATION ❑YES IF YES,PROVIDE COPY OF IS THE BLDG AN ❑YES IRE Y TOTAL VALUATION: PLANNING APPL# ❑NO PLANNING APPROVAL LETTER EICIII FR HOME? ❑NO By my signature below,I certify to each of the following: I am the property owner or authorized agent • act o6 the pj6perty owner's behalf. I have read this application and the information I have provide ect. I have read the Description of Work and verify it T c e. I agree to comply with all applicable local ordinances and state laws relating to build g co orize representatives of Cupertino to enter the above-iden ified property for inspection purposes. Signature of Applicant/ a / Date: SUPPLEMENTAL IN D P CHECK TYPE ROUTING SLIP New SFD or Multifamily dwellings: Apply for demolition permit for ❑ OVER-THE-COUN'T'ER BUILDING PLAN REVIEW existing building(s). Demolition permit is required prior to issuance of building permit for new building. ❑ ExPREss PLANNING PLAN REVIEW _Commercial Bldgs: Provide a completed Hazardous Materials Disclosure 11 STANDARD ❑ PUBLIC WORKS form if any Hazardous Materials are being used as part of this project. ❑ LARGE ❑ FIRE DEPT _Copy of Planning Approval Letter or Meeting with Planning prior to El MAJOR El SANITARY SEWER DISTRICT submittal of Building Permit application ❑ ENVIRONMENTAL HEALTH BldgApp 2011.doc revised 06/21/11 CITY OF CUPERTINO FEE ESTIMATOR-BUILDING DIVISION ADDRESS: 7655 Dumas Dr DATE: 10/23/2013 REVIEWED BY: Mendez APN: BP#: � � *VALUATION: $19,623 PPERMIT TYPE: Building Permit PLAN CHECK TYPE: Alteration/ Repair PRIMARY SFD or Duplex PENTAMATION SOLAR-RE USE: PERMIT TYPE: WORK install 18 panels on rooftop, 4.23 kw SCOPE .kfech. F'lan Check Fhrrrb.Plan Check EJec_Flan Check i1,Iec1,.Fermi!Fee: Plumb.Penni(Tee: Elec. Permit(ee: Orher,llech_Inst. Other Phiml)Insp. Other Elec Insp, Mcch.Insp,Fee: Phm71). h2sp.Tee: Elec.Imp.F"', : NOTE:This estimate does not include fees due to other Departments(Le.Planning,Public Works,Fire,Sanitary Sewer District,School District,etc). Thesefees are based on the prefinddna information available and are only an estimate. Contact the De t or addn'l info. FEE ITEMS (Fee Resolution 11-053 Eff. 7/1/13) FEE QTY/FEE MISC ITEMS Plan Check Fee: $0.00 0 # Alternative Energy System Suppl.PC Fee: E) Reg. 0 OT 10.01 hrs $0.00 $229.00 1PHOTOVRES Photovoltaic System PME Plan Check: $0.00 Permit Fee: $0.00 Suppl.Insp.Feer Reg. ® OT ro-01 hrs $0.00 PME Unit Fee: $0.00 PME Permit Fee: $0.00 ";onstracizon Tax: .1 d�r�i»istrcrtivel�'ee.• Work Without Permit? 0 Yes (F)No $0.00 E) Advanced Planning Fee. -Residential$0.00 Select allon i�cn>el Z3ocur�,�ntatir�r� Fees: Building or Structure 0 i Strong;Motion Fee: IBSEISMICR $1.96 Select an Administrative Item Bldg Stds Commission Fee: IBCBSC $1.00 SUBTOTALS: ' $2.96 $229.00 TOTAL FEE: I $231.96 Revised: 10/01/2013 -� � O� O /S Lo fa's Good TIVI Mono,k.- LG ,300NIC LG295NIC LG290NIC : • LG Electronics, Inc. (Korea Exchange:06657.KS)is one of the globally leading companies and technology innovator for electronics, information and communication products.The LG Electronics currently employs more than 91,000 people ® worldwide in 117 companies. In fiscal year 2011, MEMO ,r 48.97 billion USD of revenue was achieved. MMEMLG is one of the world's largest manufacturers of ONE mobile phones,flat screen TVs,air conditioners, washing machines and refrigerators.As a future- MONOI „ oriented company, LG enables others to use ■.® technology consisting of renewable energies. ®O00 LG's high quality solar products are being manufactured in LG's leading production facility ■ NONNI in South Korea. � r APPRO.tD P.RODUCT NONNI °�E O C �L US MONO KM 564573 BS EN 61215 1 Photovoltaic Modules OFFICE -C OP LG's High Efficient Cell Technology P 4 Convenient Installation , Driven by LG's own N-type technology, LG's high- �- LG modules are carefully designed to benefitll 5-- efficiency modules will provide customers with � installers b allowing quick and easy installations -- p Y 9 9 / high economic benefits. °:(r- throughout the carrying, grounding, and connecting stages of modules. 16.8kg Light and Robust = 100% EL Test Completed With a weight of just 16.8 kg, LG modules are E'. r All LG modules pass Electroluminescence u r�r proven to demonstrate outstanding durability - inspection This EL inspection detects cracks and against external pressure up to 5400 Pa. other imperfections unseen by the naked eye. Reliable Warranties Positive Power Tolerance LG stands by its products with the strength of a ms's' LG provides rigorous quality testing to solar global corporation arid sterling warranty policies. modules to assure customers of the stated power LG offers a 10 year product limited warranty and a _ outputs of all modules,with a positive nominal 25 year limited linear output warranty. tolerance starting at 0%. 1 71 Mechanical Properties Electrical Properties(STC*) Cells 6 x 10 300 W 295 W 290 W 285 W 280 W Cell vendor LG MPP voltage(Vmpp) 32.0 31.9 31.8 31.6 31.5 ............... Cell type Monocrystalline MPP current(Impp) 9.42 9.30 9.19 909 8.97 Cell dimensions 156 x 156 mm2/6 x 6 in ........ .... ...... .. - Open circuit voltage(Voc) 39.5 39.3 39.2 39.0 38.9 #of busbar 3 ._.._. .. .. .. ... .... ..__... . .......... . . . ..... .. ... . .......... ........................... Short circuit current(Isc) 10.0 9.91 9.80 9.68 9.56 Dimensions(L x W x H) 1640 x 1000 x 35 mm ........ ... ....................................._.. ..............................:.............. 64.57 x 39.37x 1.38 in Module efficiency(%) 18.3 18.0 17.7 17.4 17.1 _. . . - ......................... .. .. _. .. ..... . ..........................._..... .. ... ... . . . ........................................... Static snow load 5400 Pa/113 psf Operating temperature(°C) -40-+90 -_ _..._.. _ . ..............................I.... _.... . . .............. ...................... . .....I......................... ..,...... Static wind load 2400 Pa/50 psf Maximum system voltage(V) 600(UL),1000(IEC) _ ......... ...................... .. .............. . ... ..... ... .... ........................... Weight 16.8±0.5 kg/36.96±1.1 Ib Maximum series fuse rating(A) 15 ........................................... .... .. . . .... .........................._-............. ...- . ........................... Connector type MC4 connector IP 67 ° _. _._ _ __. _.. Power tolerance(/) 0-+3 Junction box IP 67 with 3 bypass diodes STC(Standard Test Condition):Irradiance 1000 W/m`,module temperature 25°C,AM 1.5 Length of cables 2 x 1000 mm/2 x 39.37 In 'The nameplate power output Is measured and determined by LG Electronics at Its sole and absolute discretion. Frame Anodized aluminum Certifications and Warranty Electrical Properties(Ni Certifications IEC 61215,IEC 61730-1/-2,UL 1703, 300 W 295 W 290 W 285 W 280 W ................................................... ............................-........-.. .1. Maximum power(Pmpp) 220 21b 213 210 206 ISO 9001 IEC 61701(ln progress), ................__..... .. ....... .............................................__..................__............... DLG-Fokus Test"Ammonia Resistance'; MPP voltage(Vmpp) 29.3 29.2 29.1 28.9 28.8 ........................ .................._- ... .... ......................_ ......... ..............._........................... ............... (In progress) MPP current(Impp) 7.51 7.42 7.33 7.25 7.15 Product warranty 10 years Open circuitvoltage(Voc) 36.5 36.3 36.2 36.0 35,9 Outputwarranty of Pmax ............I.................... .... ...................................................._.._................_........._........... (measurement Tolerance 3 3%) Linear warranty" Short circuit current(Isc) 8.08 798 7.89 7.80 770 ......................_- _................_.............____._.._...._...............................__....._........._.__........................ 1)It year:97%,2)After 2nd year:0.7%annual degradation,3)80.2%for 25 years Efficiency reduction <4.5 (from 1000 W/mz to 200 W/m2) ®Temperature Coefficients NOCT(Nominal Operating Cell Temperature):Irradiance 800 W/m',ambient temperature 20`C, wind speed 1 m/s NOCT 45±2'C Pmpp -0.42%/K 10/0.40 10/0.40 Dimensions (mm/in) Voc -0.31%/K -_. m m Isc 0.03%/K � Characteristic Curves 1000/39.37 zafl.,o 22/o.e7 $ 10 1000 W ss•a.o(x W.w) sly.of:herr id.) 9 D..In hol..(a..) ( Long side Pram® Short sidefnme 960/37.80 m 4.0'7.5(Y vi.w) 8 800 W D.eln hel.v(4s.) (Dimwnc.befw..n mounting hale.) U IS 0.71 7 48/1.89 ° 6 600 v/ 0-11-bex 5 1z-m4.3 Greund1ir9 h-,(12..) (_) (t) - 4 400 W 3 _ Mounting hel..(B.e) T 2 200 W S.S,D.22 1 1000/39.37 1 Cable length 0 5 10 15 20 25 30 35 40 Voltage(V) - ,g M.5/0.06 a 140 _ g D.t.11 x X 0 0 a ° m 'd, E < d E n e 4.0/0.16E 120 ._ --------- ___________ ____.-._._ _ c �. _ a P oo { e Je c o m . o ° SC 100 ° ° o Voc - r 80 _____-..._-_.._-__._______-.__.__---_._.___.__-. --------- '- g D.renv Pmax 944/37.17 60 .-----....---._------------------------_-.._._._.------------------------ 40 ----- ---__._-----40 .------------------------------------------------ ----'------- la ✓r 1 m d - 35/1.39 o -40 -25 0 25 50 75 90 Temperature(°C) 'The distance between the center of the mounting/grounding holes LG North America Solar Business Team Product specifications are subject to change without notice. LG Electronics U.S.A.Inc "LG Life's Good"Is a registrated trademark of LG Corp. e + 1000 Sylvan Ave,Englewood Cliffs, All other trademarks are the property of their respective owners. All NJ 07632 Contact:Ig.solar@lge.com Copyright©2013 LG Electronics.All rights reserved. ❑� Life's Good www.lasolarusa.com 03/01/7013 -- i Enphase®Microinverters Enphase@M250 .Ck !y The r�h��I ��c�' L�,r� � �� 6 ��.r �� _�� ���i delivers increased energy harvest and reduces design and installation complexity with its all-AC approach. With the M250, the DC circuit is isolated and insulated from ground, so no Ground Electrode Conductor (GEC) is required for the microinverter. This further simplifies installation, enhances safety, and saves on labor and materials costs. The Enphase M250 integrates seamlessly with the Engage® Cable, the Envoy® Communications Gateway'', and Enlighten®, Enphase's monitoring and analysis software. - Optimized for higher-power - No GEC needed for microinverter - 4th-generation product modules - No DC design or string calculation - More than 1 million hours of testing - Maximizes energy production required and 3 million units shipped - Minimizes impact of shading, - Easy installation with Engage - Industry-leading warranty, up to 25 dust, and debris Cable years -__ enphase® s�® - _ ! E N E R G Y C US Enphase®M250 Microinverter//DATA INPUT DATA (DC) M250-60-2LL-S22/S23/S24 Recommended input power(STC) 210-300 W Maximum input DC voltage 48 V Peak power tracking voltage 27 V-39 V Operating range 16 V-48 V Min/Max start voltage 22 V/48 V Max DC short circuit current 15 A Max input current 9.8 A OUTPUT DATA (AC) — @208 VAC @240 VAC Peak output power 250 W 250 W Rated(continuous)output power 240 W 240 W Nominal output current 1.15 A(A rims at nominal duration) 1.0 A(A rims at nominal duration) Nominal voltage/range 208 V/183-229 V 240 V/211-264 V Nominal frequency/range 60.0/57-61 Hz 60.0/57-61 Hz Extended frequency range* 57-62.5 Hz 57-62.5 Hz Power factor >0.95 >0.95 Maximum units per 20 A branch circuit 24(three phase) 16(single phase) Maximum output fault current 850 mA rms for 6 cycles 850 mA rms for 6 cycles EFFICIENCY CEC weighted efficiency,240 VAC 96.5% CEC weighted efficiency,208 VAC 96.0% Peak inverter efficiency 96.5% Static MPPT efficiency(weighted, reference EN50530) 99.4% Night time power consumption 65 mW max MECHANICAL DATA Ambient temperature range -40°C to+65°C Operating temperature range(internal) -40°C to+85°C Dimensions(WxHxD) 171 mm x 173 mm x 30 mm(without mounting bracket) Weight 2.0 kg Cooling Natural convection-No fans Enclosure environmental rating Outdoor- NEMA 6 FEATURES Compatibility Compatible with 60-cell PV modules.��g��� Communication Power line Integrated ground The DC circuit meets the requirements for ungrounded PV arrays in NEC 690.35. Equipment ground is provided in the Engage Cable. No additional GEC or ground is required. Monitoring Free lifetime monitoring via Enlighten software Compliance UL1741/IEEE1547, FCC Part 15 Class B,CAN/CSA-C22.2 NO. 0-M91, 0.4-04,and 107.1-01 Frequency ranges can be extended beyond nominal if required by the utility To learn more about Enphase Microinverter technology, _ enphase® visit -d[-- �_-i-r,� E N E R G Y 0 2013 Enphase Energy.All rights reserved.All trademarks or brands in this document are registered by their respective owner. , LG, Ufrc-p , fasd SOON No MEMO ME' 0 mill Monocrystalline Solar Module LGXXXNI C(W)-G3 0% Installation Instructions x A minimum slope of 5 in/ft. for installation over a roof, is required to maintain the fire class ratings. The array frame shall be grounded in accordance with NEC Article 250. Table of Contents CONTENTS 1 . Safety 2 2. Before & After Installation 3 3. Electrical Installation 4 4. Mechanical Installation 5 5. Product Specifications 8 6. Disclaimer of Liability / Disposal 9 7. Transporting and Storage 9 8. Appendix 10 Revisions Table Date Version DescripTi5T05TMT",nWg6,wo,, Remark 2012.08.01 1 .0 (1St edition) 2012.12.03 2.0 Drawing Change 2013.02.15 3.0 Revision and supplementation of standards information 2013.04.20 4.0 Add description of Mechanical Installation 2013.06.10 5.0 Add product specifications of NeoN-i Model 2013.06.25 6.0 Add Appendix Contents Safety The instructions related to safety and use indicated in © Do not scratch the coating surface of the frame. the this installation manual are intended for the Scratches may decrease the total solar output prevention of unexpected danger, damage, or failure. due to corrosion of the frame. } ' � WARNING ZL CAUTION OO Do not artificially concentrate sunlight on the solar ' = `�"i' s'- _ ___ __ _ module surface. Failure to comply may result in Non-compliance with the instructions may cause product damage or failure. product damage, product failure, and/or serious ® Do not apply a shock to the junction box of the bodily injury or death. module or pull the cable. Do not remove the labels attached to the module. Failure to comply may result in damage of the product. Do not contact electrically active parts of the OO If the installing modules on curved surface, (e. g. 01 arch type), as shown in the below picture, do not panel,such as terminals, without appropriate forcefully modify the module in the installation safety gear. Contact may result in lethal spark or when connecting it with the structure. Only install electric shock. the module in the place where the structure for ODo not use or install if the module is broken or torn. the panels has been properly set up.An improper Failure to comply may result in electric shock. structure may cause deformation of the panels. Panels may also be damaged by unapproved Ole installation methods such as the use of a crane. 02 3 /~ WARNING y� "� �� � n Perform all work in dry conditions and use only dry tools. Do not handle wet panels without appropriate J C06 protection equipment. Failure to comply may result in accident or death.accident or death. h O Damaged modules must be treated with safety protection equipment. Failure to comply may result in serious bodily injury or death. OO 081 33 Do not approach the damaged or broken module 20 � 61 unless you are an authorized or qualified expert. \ j. Failure to comply may result in serious bodily injury or death. OO may`<`tModule G:= E—Module Installing structure / Installing structure (bent type) (Straight type) 0 CAUTION L=;�_ OO Use proper equipment,connectors,wires and "'-- buttresses for the installation of the module. Failure to comply may result in product damage,product Product Deformation Occurrence of space failure or bodily injury. O Installation during rain, heavy wind or snowy day may result in bodily injury or death. O Holes in the frame or glass of the module may decrease the strength of the frame or break the glass. 0 Do not touch the glass surface or frame of the solar module after installation of the module. It may result in injury or death. S6 Heavy objects must be kept off of the solar module. Do not stand on or step on the module. Do not drop the module.Failure to comply may result in product damage,product failure or bodily injury. 2 Before & After Installation Before lnstalHaVon •Dirt build-up on the surface of the panel may cause Please carefully read this manual before installation. active solar cells to be shaded and electrical •Contact with electrically active parts of the panels, performance to be impaired. such as terminals, may result in burns, sparks and .Always keep the back surface of the panel free lethal shock whether the panel is connected or from any foreign objects or structural elements disconnected. • Panels produce voltage even when not connected which could come into contact with the panel. to an electrical circuit or load. •Solar module installation and maintenance must be performed by qualified and authorized installer. After DnsteHef cn •All installation instructions should be read and understood before performing any installation. • Plug in the connector tightly and ensure that the •Do not twist, pull, or scratch the cable attached to wiring properly works. the solar module. •Conduct periodic inspection of the panels for • Do not touch the solar module with bare hands. damage to front glass, back sheet,frame,junction Failure to comply may result in a serious burn or box, or external electrical connections. injury. •Do not drop the solar module or place weight on a •Check electrical connections for loose connections solar module. and corrosion. • Do not disassemble the solar module. • Removal of dirt from the front glass can increase •After installation or repair, check that the solar output. module are operating properly. •Water, ethanol or a conventional glass cleanser • In the event that the currently used solar module or with a micro-fiber cloth can be used for regular parts have been replaced the newly replaced washing or rinsing of the front glass to remove module and parts must have the same model dust, dirt or other deposits. name and parts as the previously installed solar P module. •Aggressive and abrasive cleansers or chemicals •Secure all necessary permits and licenses to install such as alkali chemicals including ammonia based the solar modules solution should not be used on cleaning the module. •Only qualified and authorized individuals are •Always wear rubber gloves for electrical insulation permitted to treat electrical parts,when there is a breakage, failure or damage of the product or while maintaining, washing or cleaning panels. damage of the product. • Deposits of foreign material on the frame surface • Do not use or install broken modules; Failure to can be cleaned by using a wet sponge or cloth and comply may result in fire, electric shock, and injury. dried in air or by using a clean chamois. •Do not install the module horizontally. Failure to . Perform the wiring work by connecting the comply may result in excess dirt or white efflorescence (glass disease). connector and wires to the stand away from the • Panels are not intended for use indoors or on roof or ground. moving vehicles of any kind. • Reflection from external environments such as snow Reflection from external environments such as snow,water or other surfaces may increase the power generated by the panel. Electrical Installation • Industry standard rated specifications are made at conditions of 1000W/m 2 irradiance and 25°C (77°F)solar cell temperature. Colder temperatures Danger may substantially increase voltage and power. •Keep the solar module and system away from •Avoid all electrical hazards when installing,wiring, children at all times. operating and maintaining all panels. • Keep the module packed in the carton until the • Do not connect panels that have different electrical time of installation. properties or physical configurations in the same •Keep flammable gasses away from the installation system. site. •Match the polarities of cables and terminals when •Do not work alone. Please work as part of a team of two or more people. making the connections;failure to do so may result •Safety harness use is strongly recommended for in damage to the panel. installation. •The rating of the over-current device shall not •Partial shadowing may substantially reduce panel exceed the maximum series fuse rating marked on and system output. the name plate. •Care must be taken to avoid low tilt angles which •The panel contains factory installed bypass diodes may cause dirt to buildup on the glass against the frame edge. located inside the junction box. •When installing the system, it is recommended to install a lightning rod to protect the system. Electrical Installation •The junction box should not be opened. Opening PaF aiiel ConnecVon the junction box will void the warranty. •The solar modules may be combined in parallel to •Panels with a suspected electrical problem should produce the desired current output. be returned to LG Electronics for inspection and .When modules are combined in parallel,the total possible repair or replacement as per the warranty current is equal to the sum of currents from each conditions provided by LG Electronics module. •The voltage of each module connected in parallel Eectricai Connections should be the same. •Shock hazard may occur near the solar modules •When connecting plural strings of modules in electrical connections. parallel every series string or solar module must be •Modules may be connected in series and/or fused prior to combining with other strings. parallel to achieve the desired electrical output as •Abide with all applicable federal,state, and local long as it is within the guidelines on the product codes for additional fusing requirements and specification sheet. limitations on the maximum number of solar • Please use only the same type of modules in a modules in parallel. combined source circuit. •Maximum parallel strings without proper measures, •Do not disconnect the module under when it is e. g. fuse 20A: 1 string operating. • Parallel configuration is not limited if proper Shock hazard may occur near the solar modules measures are taken to block the reverse current connection means. flow, e.g. fuses for the protection of the module and cables from over-current for prevention of Diodes unbalanced string voltage. •All LG modules are equipped with factory installed 'A multiplying factor is required for increased output bypass diodes.The factory-installed diodes provide of the PV modules. Under normal conditions, a PV module is likely to experience conditions that proper circuit protection for the systems within the produce more current and/or voltage than reported specified system voltage. at standard test conditions.The requirements of IF(AV) 2X7.5A z s 4 the National Electrical Code (NEC)in Article 690 shall be followed to address these increased VF(max) 0.84V Di D� D3 outputs. In installations not under the requirements VRRM 45V of the NEC,the values of Isc and Voc marked on Ti (max) 175 c this PV module should be multiplied by a marked RTH 1.7 c/W on this PV module should be multiplied by a factor of 125%when determining component voltage ratings, conductor ampacities,fuse sizes, and size Series Connsctr on of controls to the PV output. •The solar modules may be wired in series to • Depending on national directives, additional safety produce the desired voltage output. factors might be applicable for overcurrent •The current of each module connected in series protection. should be the same. •The maximum number of series connected modules can be determined by basis on max system voltage,the 125%safety factor not explained in specifications, and the module Voc O+ QJ O U` O+ Q; O E) which can be checked in Product Specifications in .............. this document. y —Do not exceed 80%of maximum system voltage. + •Maximum Module configuration (recommend) : Parallel connection for more current refer to the `Product Specification' in this manual. O LLLj + - Series connection for more voltage Electrical Installation Gsnera6 Wiring •LG Electronics recommends that all wiring be double _ - Module frame insulated with a minimum rating of 90°C(194°F). •All wiring should use a flexible copper(Cu)conductor. — Bolt •The minimum size should be determined by the = Flat washer applicable codes. Star washer •LG Electronics recommends a size no smaller than 12AWG. Cup washer --- Grounding wire Earth Grounding =� Flat washer •All work must be conducted in conformance with all - Federal, State, and local codes and standards. - Spring washer •Grounding works should be performed by an Nut authorized installer for the safety and maintenance of the system in accordance with all national,state and local electrical codes and regulations and standards. •Specific information on the solar module dimensions and location of grounding holes is provided in"Product Specifications". •One M4 stainless steel bolt, one nut, one spring washer two flat washers one cup washer one star washer and 12 AWG Cu wires are recommended hole.per mounting •Where common grounding hardware (nut, bolts, Mechanical Installation washers) is used to attach a listed grounding device,the attachment must be made in conformance with the grounding device Mod]Lfia V�licuntordg manufacturer's instructions. •There is an earth hole on the edge of the module 'The LG Electronics' (LGE) Limited Warranty for solar modules is contingent upon modules being frame Using this hole an earth conductor and the mounted in accordance with the requirements solar module frame may be recommended to be described in this section. connected and earthed as the below drawing. •All screws and nuts shall be tightened to a torque •Any module without a frame (laminate)shall not be of 4-5 Nm. considered to comply with the requirements of UL 1703 unless the module with hardware that has •A module with exposed conductive parts is been tested and evaluated with the module under considered to be in compliance with UL 1703 only this standard or by a field inspection certifying that when is electrically grounded in accordance with the installed module complies with the requirements the instructions presented below and the of UL 1703. requirements of the National Electrical Code. Site Consideration The installation instructions shall include: LGE solar modules should be mounted in a location 1. Details for wiring shall comply the NEC Article that meets the following requirements. 690. Operating Temperature 2. Details for the grounding method of the frame of •Maximum Operating Temperature: +90°C (194°F) arrays shall comply with the NEC Article 250. •Minimum Operating Temperature: -40°C (-40°F) 3. CNL model instruction manuals shall also include Design Strength a statement that installation shall be in •LGE solar modules are certified to basic loads accordance with CSA C22.1, Safety Standard for 50lb/ft2 (about 2400 Pa). Electrical Installations, Canadian Electrical Code, Excluded Operating Environments Part 1. •The solar modules from LG Electronics can not be operated in a location where they could come in direct or indirect contact with salt water or ammonia. Mechanical Installation Mounting Methods Mounting by using frame bolts holes General Information •Secure the solar module to the structure by using •Select the appropriate orientation to maximize the factory mounting holes. sunlight exposure. • Four M6 stainless steel bolts, four nuts,four spring •Module should not be mounted or stored in a way washers, and eight flat washers are recommended that the front/top glass faces downward in order to per solar module. prevent water from entering the junction box,which •The module may be fastened to a support by using could cause a safety hazard. both the outer and inner bolt holes of the frame. •Clearance between the solar module frames and • Each module should be securely fastened at a structures such as roofs or ground is required to minimum 4 points on two opposite sides. prevent wiring damage and to allow air to circulate •Specific information on the solar module behind the solar module.The recommended dimensions and location of mounting holes is standoff height is a minimum of 1 00m provided in `Product Specifications'. •When installed on a roof,the solar module must be mounted over a fire-resistant roof covering rated for the application. The fire resistance of the solar Module frame module is class C after ANSI/UL790. Bolt •The solar module is only IEC listed for use when its factory frame is fully intact. Flat washer • Removal or alteration must be done by an Flat washer authorized and qualified individual o •Creating additional mounting holes may damage — © Spring washer the solar module and reduce the strength of the q frame. Nut •We recommend a 6mm gap between module Support frames to avoid tension from thermal expansion. •The fire rating of this module is valid only when mounted in the manner specified in the mechanical .Tighten the bolt securely by using the combination mounting instructions_ shown above. Place the spring washer between •The module is considered to be in compliance with the Flat washer and Nut. UL1703 only when the module in mounted in the manner specified by the mounting instructions Mounting by using clamps below. •The module may be fastened to a support by using •The solar module may be mounted by using the clamps on both the long edge and the short edge following methods: (*Torque:8-12Nm ) of the modules. •When installing modules in heavy snow areas, it is •Specific information on the solar module recommended to be taken an appropriate dimensions and location of clamping is provided in countermeasure to prevent possible damages to `Product Specifications'. the lower side frame by slipping snow. (e.g. attach supporting part to the lowest modules) Solar module Supporting part Roof Mechanical Installation 2 o ry 2 0 Use four mounting holes on two opposite sides. f3. (D 'r CL 0)Cl) Clamping Range C � L (230mm) •B- E 0 Use four clamps on the long frame. This method is not tested by IEC/UL. r W IL Center -100rnrn L_ CL� ` �; . Clamping Rarge: Clamping Mange: N From mule Eage From module Edge _ r tv 27Omm to 120mm 0 i -� Center =1 ODMM I e .- a Use four clamps on the Short frame. Use four clamps on the short frame and This installation is allowed in the following cases: two clamps at the center of long Frame. 1.slope roof:If module is installed parallel to the rooftop. 2.Flat roof:If installed with an additional stand such as wind shield or deflector. 7 Product Specifications - Electrical and Mechanical Properties (Rated electrical characteristics are within 10 percent) Standard Test Condition(STC) : Irradiation 1,000W/m2, Cell temp. 25°C, 1.5AM Certifi Electrical Properties Mechanical Properties Other cafes A l W % V A V A % V mm mm MM kg A LG270N1C(W)-G3 Yes 270 3% 38.57 9.31 31.21 8.74 <4.5 1 600 12 MC4 1640 1000 35 16.8 20 LG275N1C(W)-G3 Yes 275 3% 38.72 9.44 31.36 8.85 44.5 600 12 MC4 1640 1000 35 16.8 20 ca X LG280N1 C(N�-G3 Yes 280 3% 38.87 9.56 31.49 8.97 <4.5 600 12 MC4 1640 1000 35 16.8 20 ? LG285N1C(W)-G3 Yes 285 3% 39.02 9.68 31.62 9.09 44.5 600 12 MC4 1640 1000 35 16.8 20 LG290N1C(W)-G3 Yes 290 3% 39.17 9.80 31.75 9.19 <4.S 600 12 MC4 1640 1000 35 1 16.8 20 J LG295N7CVM-G3 Yes 295 1 3% 1 39.32 1 9.94 1 31.83 9.34 <4.5 600 12 1 MC4 1640 1 1000 1 35 r,' 20 LG300141COM-G3 Yes 300 1 3% 1 39.47 1 10.05 37.97 9.46 <4.5 600 12 MC4 1640 1000 35 16.8 20 Note : *Relative efficiency reduction by respect to irradiance *MC4 formal name : PV-KST4/611-UR, PV-KBT4/611-UR - Dimensions of Modules Unit: mm/ in. Cross-sectional drawings 1 C-r''D,4J a7 r"}r i Lf 1 IC) 4 7 r Nl 3 }:LT.17 Long side frame Short side frame Note :*Holder is for the convenient connection of junction box cable,but that does not warranty if it is broken after installed. S Disclaimer of Liability / Disposal Disclaomer of Uablluty •By beginning the installation process the installer represents the he/she has read and completely understands this Installation Manual. He/She further represents if he/she had any questions regarding this installation manual he/she would have contacted LG with any questions or concerns. By installing an LG Solar module, I discharge, and cove nant not to sue LG, its affiliated companies, successors, or assigns, its administrators, directors, agents, officers,volunteer and employees, other participants in any activity connected to installation, operation, or service of LG Solar Modules and if applicable from all liabilities claim Solar Modules, and if applicable, from all liabilities, claims, demands, losses, or damages on my account caused or alleged to be caused in whole or in part by the negligence of the LG its affiliated companies, successors, or assigns, its administrators, directors, agents, officers, volunteer and employees. D'sposa0 • Please contact us, if you have any queries related to the disposal or recycling of solar modules from LG Electronics. Transporting and Storage • Do not loosen the banding, when the module is transported by truck, ship and etc. In case of loose banding,the module will be shaken,which may cause damage. •Do not stack more than three pallets. Severe stacking can cause stress to the module and may cause product damage. Appendix V!'U�OILRY Carrnpatrbl Hty •LG modules have been confirmed by Burndy LLC that the below model number designations have been evaluated with the Burndy WEEB line of products: LGxxxS1C-G3, LGxaS1K-G3, LGxxxN1C-G3, LGxxxS1C-A3, LGxxxS1K-A3 - WEEBs Solar Module Frame — - - - .c ` _._flhg Reil WEEB-DPF - Grounding Lugs AW LUG 6.7 - Cable Clips ACC-R2 Important Notes 1.The NEC section 690.43 states,"Exposed non-current carrying metal parts of module frame, equipment and conductor enclosures shall be grounded in accordance with 250.134 or 250.136(A)regardless of voltage" 2. Use general purpose anti-seize compound on fastener threads when installing WEEBs. 3.WEEBs are intended for SINGLE USE ONLY. Functionality will not be guaranteed if reused. 10 U�s's Good LG Electronics U.S.A Inc. 1000 Sylvan Ave, Englewood Cliffs, NJ 07632 Contact : Ig.solar@lge.com http://www.Igsolarusa.com This document is subject to change without notice. LG, LG logo and Life's Good are trademarks of LG Electronics, Inc. worldwide. Trademarks and intellectual properties of LG Electronics, Inc. are protected by international copyright laws. Document : II-N-UL-V6-EN-201306 Enphase M250 Microinvefter with integrated ground—no GEC required 14 141-00022, Rev 01 M250 Installation and Operation Contact Information Enphase Energy Inc. 1420 N. McDowell Blvd. Petaluma, CA 94954 http://www.enphase.com info(cD-enphaseenergy.com supportC5,enphaseenergy.com FCC Compliance This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined 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 technician for help. Changes or modifications not expressly approved by the party responsible for compliance may void the user's authority to operate the equipment. Other Information Product information is subject to change without notice. All trademarks are recognized 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. For Enphase patent information refer to http://enphase.com/company/patents/. ©2013 Enphase Energy Inc. All rights reserved. 2 ©2013 Enphase Energy Inc. 141-00022 Rev 01 M250 Installation and Operation Table of Contents ImportantSafety Information.........................................................................................................................4 Readthis First...................................................................................................................................... 4 SafetyInstructions...........................................................................................................................................4 Audience..........................................................................................................................................................4 The Enphase Microinverter System..............................................................................................................5 Howthe Microinverter Works...........................................................................................................................6 SystemMonitoring.......................................................................................................................................6 OptimalReliability........................................................................................................................................6 Easeof Design............................................................................................................................................6 Planning for Microinverter Installation...........................................................................................................7 Compatibilityand Capacity..............................................................................................................................7 ElectricalCompatibility................................................................................................................................7 UtilityService Requirements........................................................................................................................7 BranchCircuit Capacity...............................................................................................................................7 Partsand Tools Required................................................................................................................................8 EnphaseEquipment....................................................................................................................................8 OtherItems..................................................................................................................................................8 Lightningand Surge Suppression....................................................................................................................8 Enphase Microinverter Installation................................................................................................................9 Step1: Connect the Envoy............................................................................................................................10 Step 2: Install the AC Branch Circuit Junction Box........................................................................................11 Step 3: Plan, Cut, and Position the Engage Cable........................................................................................12 Step 4:Attach the Microinverters to the PV Racking.....................................................................................13 Step5: Dress the Engage Cable...................................................................................................................14 Step 6: Connect the Microinverters................................................................................................................15 Step 7:Terminate the Unused End of the Engage Cable..............................................................................16 Step 8: Connect the Engage Cable to AC Junction Box(es)..........................................................................17 Step 9: Complete the Installation Map...........................................................................................................18 Step10: Connect the PV Modules.................................................................................................................18 Commissioning and Operation....................................................................................................................19 Energizethe System......................................................................................................................................19 Checkthe Envoy's progress..........................................................................................................................19 Configure the Grid Profile(optional) ..............................................................................................................19 Buildthe Virtual Array....................................................................................................................................20 Troubleshooting ..........................................................................................................................................21 Status LED Indications and Error Reporting..................................................................................................21 StartupLED Operation:.............................................................................................................................21 Post-Startup LED Indications.....................................................................................................................21 DCResistance Low Fault..........................................................................................................................21 OtherFaults...............................................................................................................................................21 Troubleshoot an Inoperable Microinverter.....................................................................................................22 Disconnect a Microinverter............................................................................................................................24 Install a Replacement Microinverter...............................................................................................................25 Engage Cable Planning and Ordering Information.....................................................................................26 SelectingCable Type.....................................................................................................................................26 ConnectorSpacing Options...........................................................................................................................26 Voltage Type and Conductor Count Options.................................................................................................27 CablingLength Options.................................................................................................................................27 Planning for Cable Lengths and Type............................................................................................................27 TechnicalData............................................................................................................................................29 TechnicalConsiderations...............................................................................................................................29 M250Specifications.......................................................................................................................................29 EngageCable Specifications.........................................................................................................................31 EnphaseInstallation Map...............................................................................................................................32 M250Dimensions..........................................................................................................................................33 Sample Wiring Diagram: M250,240 VAC......................................................................................................34 SampleWiring Diagram: M250, 208 VAC......................................................................................................35 3 ©2013 Enphase Energy Inc. 141-00022 Rev 01 M250 Installation and Operation Important Safety Information Read this First This manual contains important instructions for use during installation and maintenance of the Enphase M250TM Microinverter. To reduce the risk of electrical 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. 1 DANGER!This indicates a hazardous situation,which if not avoided,will result in death or serious J injury. 1 WARNING!This indicates a situation where failure to follow instructions may be a safety hazard or cause equipment malfunction. Use extreme caution and follow instructions carefully. WARNING! Indicates an electrical hazard,which if not avoided, could result in death or serious injury. Use extreme caution and follow instructions carefully. NOTE:This indicates information particularly important for optimal system operation. Follow instructions closely. Safety Instructions ■ Do not use Enphase equipment in a manner not specified by the manufacturer. Doing so may cause death or injury to persons, or damage to equipment. • Perform all electrical installations in accordance with all applicable local electrical codes and the National Electrical Code(NEC),ANSI/NFPA 70. ■ Be aware that only qualified personnel should install or replace the Enphase Microinverters and the Engage TM Cable and accessories. • 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 authorization)number and start the replacement process.Tampering with or opening the Enphase Microinverter will void the warranty. ■ Warning! Electrical shock hazard.The DC conductors of this photovoltaic system are ungrounded and may be energized. ■ If the AC cable on the microinverter is damaged or broken, do not install the unit. ■ Before installing or using the Enphase Microinverter, read all instructions and cautionary markings in the technical description and on the Enphase Microinverter SystemTm and the PV equipment. ■ Connect the Enphase Microinverter to the utility grid only after you have completed all installation procedures and after receiving prior approval from the electrical utility company. ■ Be aware that 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 (176°F). To reduce risk of burns, use caution when working with microinverters. • Do NOT disconnect the PV module from the Enphase Microinverter without first removing AC power. ■ Be aware that the M250 has field-adjustable voltage and frequency trip points that may need to be set, depending upon local requirements. Only an authorized installer with the permission and following requirements of the local electrical utility should make adjustments. Audience This manual is intended for use by professional installation and maintenance personnel. 4 ©2013 Enphase Energy Inc. _ 141-00022 Rev 01 M250 Installation and Operation The Enphase Microinverter System The Enphase Microinverter System TM is the world's most technologically advanced inverter system for use in utility-interactive applications. The model M250 Microinverter is more powerful and safer than previous models, and can be paired with higher-powered PV modules. In addition, the DC circuit within the M250 is isolated and insulated from ground. Because of this, the M250 does not require a GEC. As a result, the M250 takes less time to install than other microinverters, saves money, and increases safety. This manual details the safe installation and operation of the Enphase Microinverter. The three key elements of an Enphase Microinverter System include the: • Enphase M250 Microinverter • Enphase Envoy®Communications GatewayTM • Enphase Enlighten web-based monitoring and analysis software This integrated system maximizes energy harvest, increases system reliability, and simplifies design, installation and management. �^_� - •are installed beneath each solar module `' .�. maximize energy harvest send AC power over AC wiring to the load center also send performance data via the AC wiring •plugs into an AC outlet •collects information via the AC wiring transmits data through a standard broadband router to the Internet collects information and transmits it to Enlighten allows performance data to be •provides monitoring and analysis • � viewed from any web browser 5 ©2013 Enphase Energy Inc. 141-00022 Rev 01 M250 Installation and Operation How the Microinverter Works The Enphase Microinverter maximizes energy production from your photovoltaic (PV) array. Each Enphase Microinverter is individually connected to one PV module in your array. This unique configuration means that an individual Maximum Peak Power Point Tracker(MPPT) controls each PV module. This ensures that the maximum power available from each PV module is exported to the utility grid regardless of the performance of the other PV modules in the array. That is, although individual PV modules in the array may be affected by shading, soiling, orientation, or PV module mismatch, the Enphase Microinverter ensures top performance for its associated PV module. The result is maximum energy production from your PV system. System Monitoring Once you install the Envoy Communications Gateway and provide an Ethernet connection to your broadband router or modem, the Enphase Microinverters automatically begin reporting to the Enphase Enlighten web server. The Enlighten software presents current and historical system performance trends, and it informs you of PV system status. Optimal 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 the NEMA 6 environmental enclosure rating standard: NEMA 6 rating definition: Indoor or outdoor use primarily to provide a degree of protection against hose-directed water, the entry of water during occasional temporary submersion at a limited depth, and damage from external ice formation. NOTE: To ensure optimal reliability and to meet warranty requirements, the Enphase Microinverter must be installed according to the instructions in this manual. Ease of Design PV systems using Enphase Microinverters are very simple to design and install. You will not need string calculations, and you can install individual PV modules in any combination of PV module quantity, type, age and orientation. You won't need to install cumbersome traditional inverters. Each microinverter quickly mounts on the PV racking, directly beneath each PV module. Low voltage DC wires connect from the PV module directly to the co-located microinverter, eliminating the risk of personnel exposure to dangerously high DC voltage. 6 ©2013 Enphase Energy Inc. J 141-00022 Rev 01 M250 Installation and Operation Planning for Microinverter Installation Because the DC circuit is isolated and insulated from ground, the M250 does not require a GEC. The M250 is compatible with most 60-cell PV modules (to 30OW or higher) and installs quickly and easily. It works with either three-phase 208 VAC or single-phase 240 VAC services. The M250 ships with integrated DC and AC cables and connectors. The DC connectors attach to the PV module, while the AC connector attaches directly to the Engage Cable. No additional cabling is needed. The Engage Cable is available in two connector spacing options and two voltage types to meet varying site requirements. For Engage Cable ordering information, see page 26. Compatibility and Capacity The Enphase M250 is compatible with 60-cell modules. The modules must use PV(photovoltaic)Wire. For more information, see"Technical Data" on page 29. Refer to the http://www.eniohase.com/support for a list of approved PV racking systems. To ensure mechanical compatibility, be sure to order the correct connector type for both microinverter and PV module from your distributor. WARNING: The M250 can be paired only with a 60-cell PV module. The PV module DC 1 conductors must be labeled "PV Wire" or"PV Cable"to be compliant with NEC 690.35(D) for Ungrounded PV Power Systems. Electrical Compatibility Model Number Works with PV Module Type PV Module Connector Type M250-60-2LL-S22 MC-4 locking connector M250-60-2LL-S23 60-cell PV module Tyco locking connector M250-60-2LL-S24 SMK locking connector Utility Service Requirements The M250-60-2LL works with split phase 240 VAC service or with three phase 208 VAC service. Measure AC line voltage at the electrical utility connection to confirm that it is within the ranges shown: 240 Volt AC, Split Phase 208 Volt AC,Three Phase L1 to L2 211 to 264 VAC L1 to L2 to L3 183 to 229 VAC L1, L2 to neutral 106 to 132 VAC L1, L2, L3 to neutral 106 to 132 VAC Branch Circuit Capacity Plan your AC branch circuits to meet the following limits for maximum number of M250s per branch when protected with a 20-amp over-current protection device (OCPD). Maximum number of M250s when protected with a 20 A OCPD Service type Max M250s per AC branch circuit Split phase 240 VAC 16 Three phase 208 VAC 24' To avoid potential phase imbalance, minimize the number of unused connectors with three-phase systems. See "Planning for Cable Lengths and Type"on page 27 for more information. 7 ©2013 Enphase Energy Inc. 141-00022 Rev 01 M250 Installation and Operation Parts and Tools Required In addition to the microinverters, PV modules, and racking, you will need the following. Enphase Equipment • Enphase Envoy Communications Gateway (optional, but recommended) - 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 it performs the upgrade well before the solar module installation is complete. For more information, see the Envoy Communications Gateway Installation and Operation Manual. • Engage Cable, as needed. (See"Engage Cable Planning and Ordering Information" on page 26.) — NOTE: Order the correct Engage Cable type. Installers must order Engage Cable for either 240 VAC single phase, typical for residential applications, or 208 VAC three phase, 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 Cable) • Terminators, as needed (one needed at the end of each AC branch circuit) • Enphase disconnect tool (number 2 and 3 Phillips screwdrivers can be substituted) Other Items • Outdoor-rated, weather-proof AC junction box(es) • Gland or strain relief fitting (one per AC junction box) • Number 2 and 3 Phillips screwdrivers • Torque wrench, sockets, wrenches for mounting hardware • Adjustable wrench or open-ended wrench (for terminators) • Handheld mirror(to view LEDs on the undersides of the microinverters) Lightning and Surge Suppression Enphase Microinverters have integral surge protection, greater than most traditional inverters. However, if the surge has sufficient energy, the protection built into the microinverter can be exceeded, and the equipment can be damaged. For this reason, Enphase recommends that you protect your system with lightning and/or surge suppression devices. In addition to having some level of surge suppression, it is also important to have insurance that protects against lightning and electrical surges. Install these devices per vendor instructions. Residential Commercial • Citel DS72-RS-120 surge protector; data sheet • Citel DS73-RS-G surge protector; data sheet • Delta LA-302 lightning arrestor; website • Delta LA-303 lightning arrestor;website • Leviton 51110 or 51110-001;whole house surge protection panel;website • Midnight solar surge protection device MNSPD-300 or MNSPD-30OFM (with flush mount box);website 8 ©2013 Enphase Energy Inc. 141-00022 Rev 01 M250 Installation and Operation Enphase Microinverter Installation Installing the Enphase Microinverter System involves several key steps. Each step listed here is detailed in the following pages. Follow the instructions in this section to install Enphase M250 Microinverters. Step 1: Connect the Envoy Step 2: Install the AC Branch Circuit Junction Box Step 3: Plan, Cut, and Position the Enphase Engage Cable Step 4: Attach the Microinverters to the PV Racking Step 5: Dress the Enphase Engage Cable Step 6: Connect the Microinverters Step 7: Terminate the Unused End of the Engage Cable Step 8: Connect the Engage Cable to AC Junction Box(es) Step 9: Complete the Installation Map Step 10: Connect the PV Modules DANGER: DO NOT connect or disconnect the PV module and Enphase Microinverter without first removing AC power from the PV system. WARNING: DO NOT connect Enphase Microinverters to the utility grid or energize the I AC circuit(s) until you have completed all of the installation procedures as described in the following sections. ,engage Cable drop connector O / V aoie ;es O -on to drop connector �M240 AG jc,nction b c�, O DC con ectors o� 9 �©2013 Enphase Energy Inc. 141-00022 Rev 01 M250 Installation and Operation Step 1: Connect the Envoy a. Connect 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 u�lretrieve 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. WARNING! Do not remove power from the Envoy if the LCD displays: "Upgrading. . . Do Not Unplug." AC power cord Ethernet cable to broadband router Menu '? button o Remove serial ® ® � 1 number label and attach it to the installation map. 10 ©2013 Enphase Energy Inc. 141-00022 Rev 01 M250 Installation and Operation Step 2: Install the AC Branch Circuit Junction Box DANGER: Risk of Electrical 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. WARNING: Do NOT exceed the maximum number of microinverters in an AC branch circuit as listed on page 30 of this manual. You must protect each microinverter AC branch circuit with a 20 amp maximum breaker. a. Size the AC wire gauge to account for voltage rise. Select the correct wire size based on the distance from the beginning of the microinverter AC branch circuit to the breaker in the load center. All components of system wiring must be considered, including internal voltage rise within the length of Engage Cable. Typically, three wire sections and several wire terminations must be quantified. There is also some resistance associated with each circuit breaker. As all of these resistances are in series, they add together. 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 be sufficient for microinverter AC branch circuits that contain the maximum allowable microinverters. This is due to high inherent voltage rise on the AC branch circuit. For more information, refer to our Technical Brief on Voltage Drop Considerations, http://www.enphase.com/support. b. Install an appropriate junction box at a suitable location on the PV racking system. You can center feed the branch, or you can install the junction box at the end of a row of PV modules. — Best Practice: Center-feed the branch circuit to minimize voltage rise in a fully-populated branch. This practice greatly reduces the voltage rise as compared with an end-fed ___ I branch. To center-feed a branch, divide the circuit into two sub-branch circuits protected by a single overcurrent protection device (OCPD). c. Provide an AC connection from the AC junction box back to the electrical utility connection using equipment and practices as required by the NEC and local jurisdictions. 0 0 0 0 o m 0 11 ©2013 Enphase Energy Inc. 141-00022 Rev 01 M250 Installation and Operation Step 3: Plan, Cut, and Position the Engage Cable The Engage Cable is a continuous length of 12 AWG (2.5 mm2), outdoor-rated cable with integrated connectors for microinverters. These connectors are preinstalled along the Engage Cable at intervals to accommodate PV module widths. The microinverters plug directly into the connectors, and the Engage Cable is terminated into the junction box that feeds electricity back to the system AC disconnect. NOTE: Make sure you are using the correct cable type. Installers must order Engage ' Cable for either 240 VAC single phase, typical for residential applications or 208 VAC three phase, typical for commercial installations. All drop connectors on the Engage Cable bear labels indicating the cable type. a. Confirm that the cable matches the electrical utility service at the site per the following: ■ 208 VAC (three-phase) Engage Cable at sites with three-phase 208 VAC 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 connectors so that they align with the PV modules. Allow extra length for slack, cable turns and any obstructions. WARNING: Plan the AC branches so that they do not exceed the maximum number of microinverters in an AC branch circuit as listed on page 30 of this manual. You must protect each microinverter AC branch circuit with a 20 A maximum breaker. _. NOTE: Many PV modules have a central stiffening brace. In these cases, do not position the connector and microinverter at the exact center of the PV module. Instead, position the drop connectors so that the connectors do not conflict with the braces. e. 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. 12 ©2013 Enphase Energy Inc. 141-00022 Rev 01 M250 Installation and Operation Step 4: Attach the Microinverters to the Phi Racking a. Mark the approximate centers of each PV module on the PV racking. b. Evaluate the location of the microinverter with respect to the PV module DC junction box or any other obstructions. c. Ensure that the microinverter does not interfere with the PV module frame or stiffening braces. d. Ensure that the connector from the microinverter can easily reach the connector on the Engage Cable. e. Allow a minimum of 1.9 cm (0.75 inches) between the roof and the bottom of the microinverter. Also allow 1.3 cm (0.50 inches) between the back of the PV module and the top of the microinverter. WARNING: You must install the M250 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 using suitable hardware. The indicator may . light on the underside of the r microinverter will be facing the roof. F"-] NOTE: Installing the microinverter _ I black side u or vertically, with the ------ J f="' L a DC connectors facing up, is not permitted. 46®S�p 6 C 1, 3 g. Torque the microinverter fasteners to the values shown. Do not over torque. • 6 mm (1/4") mounting hardware: 5 N m (45 to 50 in-lbs) • 8 mm (5/16") mounting hardware: 9 N m (80 to 85 in-lbs) NOTE: Using a power screwdriver to tighten the mounting hardware is not recommended due to the risk of thread galling. 13 ©2013 Enphase Energy Inc. 141-00022 Rev 01 M250 Installation and Operation Step 5: Dress the Engage Cable LNOTE: Adhere to the following requirements: • Do not expose the connection to directed, pressurized liquid (waterjets, etc.). • Do not expose the connection to continuous immersion. • Do not expose the AC connector to continuous tension (e.g., tension due to pulling or bending the cable near the connection) • Use only the connectors and cables provided. • Do not allow contamination or debris in the connectors. • Use the cable and connectors only when all parts are present and intact. a. Attach the Engage Cable to the PV racking using the cable clips, or you may use tie wraps. The cable clips --- are are designed so that the connector 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 - OWN these release holes clear and accessible. b. Dress any excess in loops so that the Engage Cable release holes does not contact the roof. w h le. n ' . There are several ways to support the cab One method is to place tie wraps or clips on either side of the t connector. Use one or two additional clips, tie wraps, or other support scheme to secure the cable between ;; = connectors. - NOTE: When looping the Engage Cable, do not exceed the minimum bend radius of 4.75 inches (12 cm). WARNING: Tripping Hazard. Loose cables can become a tripping hazard. Dress the Engage Cable to minimize this potential. 14 ©2013 Enphase Energy Inc. 141-00022 Rev 01 M250 Installation and Operation Step 6: Connect the Microinverters a. Remove and discard the temporary shipping caps from the Engage Cable and connect the microinverter. There are two latching mechanisms within the connectors. Listen for two clicks as the connectors engage. Ensure that both latching mechanisms have engaged. b. Repeat for all microinverters in the AC branch circuit. c. Cover any unused connector with a sealing cap. Listen M250 Installation and Operation Step 7: Terminate the Unused End of the Engage Cable WARNING: Risk of Electrical Shock. The terminator cap must not be installed while power is connected. NOTE: Adhere to the following requirements: • Use the terminator only once. If you open the terminator following installation, the latching mechanism is destroyed. Do not reuse the terminator. • If the latching mechanism is defective, do not use the terminator. • Do not circumvent or manipulate the latching mechanism. • Use the terminator and no other method to seal the conductor end of the trunk. • Do not expose the terminator cap to directed, pressurized liquid (water jets, etc.). • Do not expose the terminator to continuous immersion. • Do not expose the terminator to continuous tension (e.g., tension due to pulling or bending the cable near the terminator) • Do not install or use in potentially explosive environments. • Do not allow the terminator to come into contact with open flame. • Use the terminator cap assembly only when all parts are present and intact. • Fit the terminator cap using only the prescribed tools. • 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 hex nut wire organizer cap shielding from the conductors. \ b. Slide the hex nut onto the Engage Cable. C. Insert Insert the Engage Cable all the way into the wire organizer(up to the stop). d. Bend the individual wires back into the recesses in the wire organizer so that they angle back toward the cable. e. Cut the individual wires so that no excess extends _ outside of the wire organizer. The portions that angle back will need to extend enough to fit neatly into the 0.5 cm (0.2 in) recesses in the wire organizer and flush with the edge of the cap. f. Screw the hex nut onto the cap. Never unscrew ,\``,; the hex nut as this can twist and damage the cable. s g. Hold the cap with an Enphase disconnect tool, or insert a#2 Phillips screwdriver. h. Use a 22 mm (7/8 inch) wrench to tighten the hex nut until the latching mechanism is screwed all the way to the base. L Use a tie wrap or cable clip to attach the cable to the PV racking, so that the Engage Cable and terminator do not touch the roof. j. Ensure that all cabling is located underneath the PV module. 16 ©2013 Enphase Energy Inc. 141-00022 Rev 01 M250 Installation and Operation Step 8: Connect the Engage Cable to AC Junction Box(es) a. Connect Engage Cable into the AC branch circuit junction box using an appropriate gland or strain relief fitting. The Engage Cable requires a strain relief connector with an \ opening of 1.3 cm (0.5 inches) in diameter. b. Connect the Engage Cable into additional AC junction boxes as needed to transition to conduit between smaller sub-arrays. Refer to the wiring diagrams on page 33 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 Black- L1 Red - L2 Red -L2 White- Neutral Blue- L3 Green -Ground White- Neutral Green -Ground NOTE: The green wire acts as equipment ground (EGC). Because the DC circuit is isolated and insulated from ground, the M250 does not require a GEC. Balanced 208 VAC (three-phase) is accomplished by alternating phases between microinverters as shown: Line 1 Line _.._==� Line 3 Neutral Ground _ _ _ �;__J i Line 1 and 2 Line 2 and 3 Line 3 and 1 Ground and Neutral Ground and Neutral Ground and Neutral 17 ©2013 Enphase Energy Inc. 141-00022 Rev 01 M250 Installation and Operation Step 9: Complete the Installation Map The Enphase Installation Map is a diagrammatic representation of the physical location of each microinverter in your PV installation. You will create the virtual array in Enlighten from this map. Use the blank map on page 32 to record microinverter placement for the system, or provide your own layout if a larger or more intricate installation map is required. 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 ArrayGun feature from the Enphase Installer Toolkit to easily build and configure a system. Refer to http://enphase.com/products/arravgun/for more information. To manually build the Installation Map: a. Each Enphase Microinverter has a removable serial number label located on the mounting plate. Peel the removable serial number label from each Enphase Microinverter and affix it to the respective location on the Enphase installation map (see map on page 32). Remember to keep a copy of 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 records. Step 10: Connect the PV Modules WARNING: Electrical shock hazard. The DC conductors of this photovoltaic system are ungrounded and may be energized. WARNING: The M250 can be paired only with a 60-cell PV module. The PV module DC conductors must be labeled "PV Wire"or"PV Cable"to be compliant with NEC 690.35(D) for Ungrounded PV Power Systems. NOTE: Completely install all microinverters and all system AC connections prior to installing the PV _ modules. _ NOTE: The status LED on the underside of each 7__ M250 lights green six seconds after DC power is —_ applied. It remains lit solid for two minutes, followed by six green blinks. After that, red blinks indicate that no grid is present. This is because the system is not yet energized. To connect the modules: a. Mount compatible PV modules above the microinverters. b. Mate the microinverters and PV modules as required. Repeat for all remaining PV modules using one microinverter for each PV module. 18 ©2013 Enphase Energy Inc. 141-00022 Rev 01 M250 Installation and Operation Commissioning and Operation ' WARNING: Qualified personnel only may connect the Enphase Microinverter to the utility grid after receiving prior approval from the electrical utility company. WARNING: Ensure that all AC and DC wiring is correct. Ensure that none of the AC and i DC wires are pinched or damaged. Ensure that all AC junction boxes are properly closed. Energize the System 1. Turn ON the AC disconnect or circuit breaker for each microinverter AC branch circuit. 2. Turn ON the main utility-grid AC circuit breaker. Your system will start producing power after a five-minute wait time. 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 microinverters varies with the number of microinverters in the system and quality of the power line communications. At a typical residential installation, all of the microinverters are detected within 20 minutes. Large systems of 250 to 500 microinverters typically take one to two hours to detect all of the microinverters. 4. The M250 has field-adjustable 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 new scan. • Press and hold the Envoy menu button (on the right side of the Envoy). • Release the menu button when the LCD displays Enable Device Scan. 2. Check that the Envoy LCD shows a complete device count after about 30 minutes. 3. Check power line communications as shown by the number of bars on the Envoy LCD. • Press and hold the Envoy menu button (on the right side of the Envoy). • Release the menu button when the LCD displays Enable Communication Check. 4. Use the Envoy menu button to stop the scan when all devices are detected: • Press and hold the Envoy menu button (on the right side of the Envoy). • Release the menu button when the LCD displays Disable Device Scan. Configure the Grid Profile (optional) If required by the local utility, use the Envoy interface to configure the Grid Profile (alternate voltage and frequency trip points)for the system. Refer to the Envoy Communications Gateway Installation and Operation Manual at http://www.enphase.com/support for instructions. 19 ©2013 Enphase Energy Inc. 141-00022 Rev 01 M250 Installation and Operation Build the Virtual Array When the system is energized and the Envoy detects at least one microinverter, create the virtual array in Enlighten from the installation map you created. You can scan and upload the paper copy of the Installation Map, or you can use the ArrayGun feature from the Enphase Installer Toolkit to easily build and configure a system. Refer to http://enphase.com/products/arravqun/for more information. 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 9 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.enlDhase.com and click"Enlighten Login" to register. Once the virtual array is built, Enlighten displays a graphic representation of the 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. 20 ©2013 Enphase Energy Inc. 141-00022 Rev 01 M250 Installation and Operation 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: 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 authorization) number and start the replacement process. Status LED Indications and Error Reporting Startup LED Operation: The status LED on the underside of each M250 lights green about six seconds after DC power is applied. It remains lit solid for two minutes, followed by six green blinks. After that, red blinks indicate that no grid is present if the system is not yet energized. ME Six short red blinks after DC power is first applied to the microinverter indicate a failure during microinverter startup. LED on underside of M250 Post-Startup LED Indications Use a handheld mirror to view indicator lights on the undersides of the microinverters: • Flashing Green: Indicates normal operation. The microinverter is receiving messages from the Envoy and senses that the utility grid is within voltage/frequency specifications. • Flashing Orange: Indicates 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 power until this is resolved. See"Troubleshoot an Inoperable Microinverter" on page 22. • Solid Red: DC resistance low fault. Troubleshoot as described in the following section. DC Resistance Low Fault A solid red status LED when DC power has been cycled indicates the microinverter has detected a DC Resistance Low event. The LED will remain red and the fault will continue to be reported by the Envoy until the error has been cleared. An Envoy is required to clear this condition. The condition usually clears with operator intervention unless conditions causing the event have not been remedied or if the failure is permanent. Follow the instructions in the Envoy Communications Gateway Installation and Operation Manual at http://www.enphase.com/support to clear this condition. Or, for assistance, contact Enphase customer support at support(aDenphase.com. Other Faults All other faults are reported to the Envoy. Refer to the Envoy Communications Gateway Installation and Operation Manual at http://www.enphase.com/support for troubleshooting procedures. 21 ©2013 Enphase Energy Inc. 141-00022 Rev 01 M250 Installation and Operation 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 1 the DC connectors under load. Disconnect DC connections first, then disconnect the AC -- connections. WARNING: The AC and DC connectors on the cabling are rated as a disconnect only 1 i when used with an Enphase Microinverter. WARNING: 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. 1. Make sure AC breakers and disconnects are closed. 2. Check the connection to the utility grid and verify that the utility voltage are within allowable ranges shown in the Technical Data section on page 29 of this manual. 3. Verify that AC line voltage at all solar power circuit breakers at the load center and subpanels is within the ranges are shown in the following table. 4. Verify that AC line voltage at the junction box for each AC branch circuit are within the ranges are shown in the following table: 240 Volt AC, Split Phase 208 Volt AC,Three Phase L1 to L2 211 to 264 VAC L1 to L2 to L3 183 to 229 VAC L1, L2 to neutral 106 to 132 VAC L1, L2, L3 to neutral 106 to 132 VAC 5. Using an Enphase disconnect tool, disconnect the AC cable for the microinverter in question from the Engage Cable. 6. Verify that utility power is present at the microinverter by measuring line to line and line to neutral at the Engage Cable connector. 7. Visually check that the AC branch circuit connections (Engage Cable and AC connections) are properly seated. Reseat if necessary. Check also for damage, such as rodent damage. 8. Make sure that any upstream AC disconnects, as well as the dedicated circuit breakers for each AC branch circuit, are functioning properly and are closed. 9. Disconnect and re-connect the DC PV module connectors. The Status LED of each microinverter will light solid green a few seconds after connection to DC power and then blink green six times to indicate normal start-up operation about two minutes after connecting to DC power. The LED subsequently resumes normal operation if the grid is present. See page 21 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 the Technical Data section on page 29 of this manual. 22 ©2013 Enphase Energy Inc. 141-00022 Rev 01 M250 Installation and Operation 12. Swap DC leads with a known good, adjacent PV module. If after checking Enlighten periodically (this may take up to 30 minutes), the problem moves to the adjacent module, this indicates that the PV module isn't functioning correctly. If it stays in place, the problem is with the microinverter. Call Enphase Customer Support for help in reading the microinverter data and for help in obtaining a replacement microinverter, if needed. 13. Check the DC connections between the microinverter and the PV module. The connection may need to be tightened or reseated. If the connection is worn or damaged, it may need replacement. 14. Verify with your utility that line frequency is within range. 15. If the problem persists, contact Customer Support at support(c)-enphase.com. 23 ©2013 Enphase Energy Inc. 141-00022 Rev 01 M250 Installation and Operation Disconnect a Microinverter If problems remain after following the troubleshooting steps listed previously, contact Enphase at sportc.enphaseenergy.com. If Enphase authorizes a replacement, follow the steps below. To ensure the microinverter is not disconnected from the PV modules under load, adhere to the following disconnection steps in the order shown: 1. De-energize the AC branch circuit breaker. 2. Disconnect the microinverter from the Engage Cable as follows: Enphase AC connectors are tool-removable only. To disconnect a microinverter from the Engage Cable, insert the two large prongs of the disconnect tool (see illustration) into the two holes in the drop connector. Rock the connector back and forth while pulling gently to disengage. Finger pressure point - —Amphenol(H4) Terminator wrench ® disconnect tool Drop connector release prongs Multi-Contact(MC-4) / disconnect tool Finger pressure point _. 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 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. Remove the microinverter from the PV racking. WARNING: Do not leave AC connectors on the Engage Cable uncovered for an extended period. If you do not plan to replace the microinverter immediately, you must --� cover any unused connector with a sealing cap. Sealing caps may not be reused. 24 ©2013 Enphase Energy Inc. 141-00022 Rev 01 M250 Installation and Operation Install a Replacement Microinverter If problems remain after troubleshooting, contact Enphase at suppor-01enphaseenergy.com. If Enphase authorizes a replacement(RMA), replace the microinverter as follows: 1. When the replacement M250 is available, verify that the AC branch circuit breaker is de- energized. 2. Attach the replacement microinverter to the PV racking using hardware recommended by your PV racking vendor. WARNING: You must install the M250 under the module, out of rain and sun. Do not 1 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. 3. Torque the microinverter fasteners to the values shown. Do not over torque. • 6 mm (1/4") mounting hardware: 5 N m (45 to 50 in-lbs) _ • 8 mm (5/16") mounting hardware: 9 N m (80 to 85 in-lbs) NOTE: Using a power screwdriver to tighten the fasteners is not recommended due to the risk of thread galling. 4. Connect the microinverter to the Engage Cable drop connector. There are two latching mechanisms within the connectors. Listen for two clicks as the connectors engage. Ensure that both latching mechanisms have engaged. 5. Mount the PV module above the microinverter. 6. Mate the microinverter and PV module as required. 7. Energize the AC branch circuit breaker, and verify operation of the replacement microinverter by checking the indicator light on the underside of the microinverter. You may need a handheld mirror to see the indicator light. 8. Initiate a device scan at the Envoy. To do this, press and hold the Menu button on the Envoy for two seconds to bring up the Envoy menu on the LCD window. When the LCD window displays"Enable Device Scan", release the Menu button. This starts a 30-minute scan at the Envoy to discover the new microinverter. 9. Use Enlighten's Array Builder to add the newly detected microinverter to the virtual array. 10. Ship the old microinverter to Enphase using the supplied return-shipping label. 25 ©2013 Enphase Energy Inc. 141-00022 Rev 01 M250 Installation and Operation Engage Cable Planning and Ordering Information The Engage Cable is a continuous length of 2.5 mm2 (12 AWG), outdoor-rated cable with integrated connectors for microinverters. These connectors are preinstalled along the Engage Cable at intervals to accommodate PV module widths. The microinverters plug directly into the cable connectors. The cabling is compatible with a variety of PV racking systems. For a list of approved PV racking systems, refer to the PV Racking Compatibility document on the Enphase website (http://www.enlDhase.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 between connectors on the cable can be either 1.025 meters (40") or 1.7 meters (67"). The 1.025 meter spacing is best suited for connecting PV modules installed in portrait orientation, while the 1.7 meter gap is best suited to PV modules installed in landscape orientation. Cabling with connectors spaced at 1.025 meter(40") for PV modules in portrait orientation X1.025 meters— E-1.025 meters—> Cabling with connectors spaced at 1.7 meters (67") for PV modules in landscape orientation 1.7 meters o 1.7 meters 26 ©2013 Enphase Energy Inc. 141-00022 Rev 01 M250 Installation and Operation Voltage Type and Conductor Count Options The voltage types are either 240 VAC split phase or 208 VAC three phase. All cable connectors bear labels indicating their cable voltage designation.Typically used for residential applications, 240VAC includes four conductors. Three-phase 208 VAC cabling includes five conductors, and is used for most commercial installations. Because Enphase microinverters output onto two phases, three phase cabling balances the phases by rotating conductor use from one microinverter to the next as shown on page 17. Cabling Length Options Engage Cabling is available in shorter lengths with 30-40 connectors, depending upon voltage type. Longer lengths can be ordered and cut to suit per order. Ordering options include: Model Number Voltage type/ Connector Connector PV module Approx.weight conductor# count spacing orientation ET10-240-40 240 VAC, 40 1.025 m (40") Portrait 18.1 kg 4 conductor (40 lbs) ET17-240-40 240 VAC, 40 1.7 m(67") Landscape 20.4 kg 4 conductor (45 lbs) ET10-208-30 208 VAC, 30 1.025 m (40") Portrait 13.6 kg 5 conductor (30 Ibs) ET17-208-30 208 VAC, 5 30 1.7 m (67") Landscape 15.9 kg conductor (35 lbs) ET10-240-BULK 240 VAC, 240 1.025 m (40") Portrait over 90 kg 4 conductor (200 lbs) ET17-240-BULK 240 VAC, 240 1.7 m (67") Landscape over 90 kg 4 conductor (200 lbs) ET10-208-BULK 208 VAC, 240 1.025 m (40") Portrait over 90 kg 5 conductor (200 Ibs) ET17-208-BULK 208 VAC, 240 1.7 m (67") Landscape over 90 kg 5 conductor (200 Ibs) Planning for Cable Lengths and Type The Cabling System is flexible enough to adapt to almost any solar design. To determine the length and cable type that you need, take into account the following considerations: • The number of Enphase Microinverters to be installed on the AC branch circuit. Be certain to allocate the correct number of connectors, including extra connectors for gaps and turns. • Additional length required to reach from the AC branch circuit junction box to the first microinverter. If greater than half a connector interval is needed, it may be necessary to allow for one (or more) unused connectors in order to span this distance. Unused connectors must be covered with Enphase watertight sealing caps. • Plan to minimize the number of unused connectors with three-phase systems. When cable connectors are left unused on a three-phase system, it creates a phase imbalance on the branch circuit. If multiple cable connectors are skipped over multiple branch circuits, the imbalance can multiply. 27 ©2013 Enphase Energy Inc. 141-00022 Rev 01 M250 Installation and Operation You can sometimes avoid skipping Engage Cable connectors with the use of Engage Couplers. The Engage Coupler can be used to connect two Engage Cables or to connect Engage Cable to field cable. There are many possible scenarios for each type of connection, but they generally fall into four categories: o Engage Cable to Engage Cable: 1. Make use of leftover lengths of Engage Cable 2. Transition between portrait and landscape Engage Cable o Engage Cable to Field Cable (#12 TC-ER): 3. Transition between sub-arrays on the same circuit 4. Create wiring extensions for Engage Cable �--1 NOTE: Engage Coupler only supports#12 TC-ER, which may not be sufficient for homerun wiring. Enphase Energy recommends maintaining less than 2% voltage drop across all wiring. In situations where you cannot use an Engage Coupler, you can use an electrical junction box to transition between cable types. Additional lengths of cable must be taken into account when calculating total VRise. Refer to the following documents to maintain AC VRise at less than 2%: o Applications of the Engage Coupler o Circuit Calculations for the M250 Microinverter o Calculating AC Line Voltage Drop for M250 Microinverters with Engage Cables • Additional length required to reach from one row of PV modules to the next. If the PV modules are laid out in multiple rows, the distance from one row to the next often requires additional cabling length. • Bend radius. When planning cabling turns or loops, you must account for a minimum bend radius of 4.75 inches (12 cm). • Multiple sub-arrays. Often, the AC branch circuit is composed of several smaller sub-arrays across more than one roof plane. In this case, cut the cable to service each smaller array, and the sub-arrays are connected together using appropriately rated lengths of conduit. The transition from cable to conduit is accomplished using an outdoor-rated AC junction box, as required by the NEC and local code. Unused connectors must be covered with Enphase sealing caps. • Mixture of PV modules in both portrait and landscape orientation. When PV modules are installed in mixed orientation (both portrait and landscape orientation), there are three choices for cabling: 1. Cabling with 1.025 meter spacing between connectors results in cleanest install for the PV modules in portrait orientation. For PV modules placed in landscape orientation, plan for an unused connector between each PV module to accommodate the additional distance. Unused connectors must be covered with Enphase watertight sealing caps. 2. Cabling with 1.7 meter spacing between connectors results in cleanest install for PV modules in landscape orientation, but requires that any additional cable length between PV modules in portrait orientation be coiled and dressed so that the cable does not contact the roof. Again, unused connectors must be covered with Enphase sealing caps. 3. Another solution when PV modules are installed in mixed orientation is to transition between 1.025 and 1.7 meter spacing cable options using the Engage Coupler or an outdoor-rated junction box. This junction box can be installed to the PV racking. Refer to http://enphase.com/products/engage-coupler/for information on the Engage Coupler. 28 ©2013 Enphase Energy Inc. 141-00022 Rev 01 M250 Installation and Operation Technical Data Technical Considerations The M250 may be paired only with a 60-cell PV module. The PV module DC conductors must be labeled "PV Wire" or"PV Cable"to be compliant with NEC 690.35(D) for Ungrounded PV Power Systems. Be sure to verify the voltage and current specifications of your PV module match those of the microinverter. WARNING: You must match the DC operating voltage range of the PV module with the allowable input voltage range of the Enphase Microinverter. ' WARNING: The maximum open circuit voltage of the PV module must not exceed the specified maximum input voltage of the Enphase Microinverter. The output voltage and current of the PV module 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 microinverter. M250 Specifications Enphase M250 Microinverter Parameters Topic Unit Min Typical Max DC Parameters MPPT voltage range V 27 39 Operating range V 16 48 Maximum DC input voltage V 48 Minimum/Maximum start voltage V 22 48 Maximum DC input short circuit current A 15 Maximum DC input current A 9.8 Maximum AC backfeed current to input source A 0 29 ©2013 Enphase Energy Inc. 141-00022 Rev 01 M250 Installation and Operation Enphase M250 Microinverter Parameters Topic Unit Min Typical Max AC Parameters Rated continuous AC output power(-40°C to+65°C) W 240 Peak AC output power W 250 Output power factor >0.95 Nominal continuous AC output voltage range 240 VAC (split phase) Vrms 211 240 264 208 VAC (three phase) Vrms 183 208 229 Maximum AC output current at nominal voltage 240 VAC (split phase) Arms 1.0 208 VAC (three phase) Arms 1.15 Nominal AC output frequency range Hz 57 60 61 Extended AC output frequency range 57 62.5 Maximum AC output over current protection device A 20 A Maximum AC output fault current&duration mA rms for 6 cycles 850 Voltage trip limit accuracy % ±2,5 Frequency trip limit accuracy Hz ±0.1 Trip time accuracy cycles ±2 Miscellaneous Parameters Maximum microinverters per 20 amp AC branch circuit 240 VAC (split phase) 16 208 VAC (three phase) 243 Peak inverter efficiency % 96.5 CEC weighted efficiency, 240 VAC % 96.5 CEC weighted efficiency, 208 VAC % 96.0 Static MPPT efficiency(weighted, ref EN 50530) % 99.4 Total harmonic distortion % 2.5 5 Operating temperature range (internal) °C -40 +85 Ambient temperature range °C -40 +65 Night tare loss mW 65 Storage temperature range °C -40 +65 2 Frequency ranges can be extended beyond nominal if required by the utility 3 To avoid potential phase imbalance, minimize the number of unused connectors with three-phase systems. See "Planning for Cable Lengths and Type"on page 27 for more information. — --- 30 ©2013 Enphase Energy Inc. 141-00022 Rev 01 M250 Installation and Operation Enphase M250 Microinverter Parameters Topic Unit Min Typical Max Features and Specifications Compatibility Pairs with most 60-cell PV modules(the PV module DC conductors must be labeled"PV Wire" or"PV Cable"to be compliant with NEC 690.35(D) for Ungrounded PV Power Systems) Dimensions not including mounting bracket(approximate) 171 mm x 173 mm x 30 mm Weight 2 Kg Enclosure environmental rating NEMA 6 Torque specifications for fasteners a 6 mm (1/4") mounting hardware: 5 N m (45 to (Do not over torque.) 50 in-lbs) • 8 mm (5/16") mounting hardware:9 N m (80 to 85 in-lbs) Cooling Natural convection: no fans Communication Power line Standard warranty 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 Integrated DC disconnect The DC connector has been evaluated and approved for use as the load-break disconnect required by NEC 690. Integrated AC disconnect The AC connector has been evaluated and approved for use as the load-break disconnect required by NEC 690. Engage Cable Specifications Specification Value System temperature range (ambient) -40°C to+65°C (-40°F to+149°F) Cable temperature rating +90°C Dry/+90°C Wet Cable rating TC-ER Conductor insulator rating THWN-2 Environmental protection rating IEC 60529 1 P6 UV exposure rating UL 746 C, F1 Compliance UL 486A/B, UL 514C, UL 6703, UL 9703, IEC 60529 IP67, CAN/CSA 22.2 No.21, 182.3 Conductor size 12 AWG Cable diameter 1.25 cm (0.49") Minimum bend radius 4.75 inches(12 cm) Drop connector dimensions 11.8 cm x 6.0 cm x 3.2 cm (4.64"x 2.36"x 1.25') Terminator cap dimensions 3.6 cm diameter x 5.1 cm tall (1.4"x 2") 31 ©2013 Enphase Energy Inc 141-00022 Rev 01 M250 Installation and Operation Enphase Installation Map :$ee4S of LU o N =:o o fl�, U) o o E;o z v ;v d UD a z 0 g UD z 0 N J R U) O p C > w _ O N r O t Co � r � y � � F m 0 U T G L N ( N'r N � N L-y° c w LTJ = c _ c o z � a 3'= � 3 > a� Q O r L O-0 aQ Q - a QQ = m Q Cf] U w LL n � :Iaa4S of 32 ©2013 Enphase Energy Inc. 141-00022 Rev 01 M250 Installation and Operation E P 'S Co �a N� E E c N NO E E O N 0<0 M e- 0 0 0 � ' E E O c C _ O;7 C- O E E c v Co M O E E E c N'- C")Cn E C O M C4 O N C O N r E E c 0Q0 CD N CP E E c E E a N Co c V.S N O CD C7 CV C'7 N r� O O E E.c O M M Co CO N N 33 ©2013 Enphase Energy Inc. 141-00022 Rev 01 M250 Installation and Operation Sample Wiring Diagram: M250, 240 VAC § } - //\\ o _<�« §SBD /kk\ / : LD Of z\ ` §: £gam E§ §) )) ~ k( }ƒ\� f/ I § 12 zM : \d I § § ( . (| k6E k )! ) - $\§ \{# . . { \/ \ . la22 -4 \ � ] 2 \k j \f`\ »e �\ . - ! z0 (\\\ �2 0;!! !!a= u�;ze ) !2!§ ,_ \} ) � m \ ; .7z z _ (§� / | \%\ (\\ C4\� 0 Fa � < 0Uw ! ` 34 42013 DAeeEnergy Inc. � � � 141-00022 Rev 01 M250 Installation and Operation Sample Wiring Diagram: M250, 208 VAC 2 = -- k!§ \ I ± \ 7/e > ƒ \{ !/k \ 2i/ _ (g� E i5 bk )C &\ m$ \I LLJ LL N LU / ( CL )§ \ 2 = )§ km §/ C) z§ §§ \E �\ > ( } \ \ uj ( \ ® }k \ ( ®� { 1f7 . § § k!!\ /\ / )N( } \ 5 H ) 0. })7\ 9/ &rw! S�/ 'L ' >01z � !,$! §§a§{& 2 !` k/ ( � ®) § A / ® � k!2 _[ UJ )[3 //k ®C( / /K( . _ ---�—----_�-----�-�-�—�—��-�-�— . .-- --------- ---- --�—�—�-� ©- m #2SO#aeEnergy Inc. 141222Rev 01 Enphase Energy Inc. 1420 N. McDowell Boulevard Petaluma, CA 94954 www.enphase.com info(a enphaseeneryg corn support(c-)enphaseenergy.com N 1. y VIM U ' E m Z u a) o_ u C O Y U LO J Q L U p� _ 40dw z C/1 U E eo a) W EL r x o eo 9655 Dumas, Dr,� G-.-U, fo,rfino . CA 95014 M I a .*-- -- - -- ----- -- - - - - - - --- ---- - -- - - - - - - ---- - ----------- O 0 v W) L () v 'm v E rn om -- Q ML N U) N (� t0 U E � E oo � APN: 359-25-047 CO o r CO C a ` LO .� Q `bQo o cDE I— UvW Single Family Residential Dwelling 0 Sheet 1 Plot Plan Drawn 10/22/1013 NTS i LABLE ON EACH AC ROOF MOUNTED SWITCH DISCONNECT Quantity of 1 needed A ® ® ® Red with White N i ® Backing Y2"Strike o (0 UMake as small a possible 0') j INSTALL AT MAIN SERVICE METER E Quantity of 1 needed Z @� Quantity of 1 needed C:) Y im L J Q . V E Red with White 6 -T Make as small a possibleMEN a ® V O � Backing'/"Strike ® r ® IL7-1 0 LABLE ON EACH AC ROOF MOUNTED SWITCH DISCONNECT i--i ® ® ® d ® 0 E W E ti W INSTALL ON UTILITY AC DISCONNECT Red with White Backing 1/2"Strike O Install on breakers at load center L Quantity of 1 needed INSTALL AT MAIN SERVICE METER a o 00 c -® Quantity of 1 needed Quantity of 1 needed qT Small as possible 1.4 ® Quantity of 1 needed O c� Small as possible i d ® a' E O U PLACE LABEL AT SUBPANEL BREAKER Red with White Red with White -� M Backing%"Strike Backing'/"Strike V INSTALL ON PV SUBPANEL r` ® Quantity of 1 needed INSTALL ON UTILITY AC DISCONNECT o a ; Quantity of 1 needed LIDo Q 0 E o o M ® ® SUP �R10 0- 00 � o �- LO U C Red with White Backing 1/2"Strike Install on DC Conduits INSTALL AT MAIN PANEL AND EDGE OF GARAGE Adhesive Label None needed Quantity of 2 Needed Apply only if conduit is inside Sheet s house or attic as this is a AC Sinage system and no DC Circuit are run beyond module at roof Drawn 10/22/1013 NTS t , w v s� rw� -71 7. .nom,.. e. �'.. ...........:.. .,. , ..-.. r. ,t, ., ..v.. ,...-.,..ra. ,.a„ ...F. ,,.r -- .,. ,-:�.. `x. z .,..; A"_... .. 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",•'. *'�,��L� �C.i h>��'' U)A ik CD zi k 3 3. k g 1 ■ ,IA r I. I lV I IVB � liiin w u { co a co 3r 1 V Y n . 3k` a, n aF w , >, r v f ev w 2 Y a. Y ? i > r_ 4 r tc z 4 o- it e u � �� t➢ v iii�' � l �� a s�, - �,F.�„� , n` � f ru k M x C `) t? i+x C f.A C2 ,•.fh. 2 fi ,Y,fi d K V s= 3" 5 {+:S Y.l .a, I l'j 1 K t4 rl. i;+ r ai„ f 3 ✓ , II S 1 i.� co CU �>� .,.m ? ,a`�>` :. ,,,,.n:, ��. ,.. :.:�, :;-*:'°z„ � � _,:;^ n f\\•�',,•'�`'��Y ':���, x �t �yryz`" � G>��a�k i'? .;�„�� C 1/ ..::� `a.,. ,., �, - "-;.',... `•:r �' ,?,y r„ ,mss a � r�. F �� a� !■I �• ({� rlll ,rad .4 2•"\ ,•-,�•�"� -\r x, �� ,y��. �.s�ra \ ^a v u i r�K e�''���^�' � Y� ' �'a�, ���'✓ .k '�\��: �� ��* �\ � t w ��<� s �a tr tz��`��k rs l 4 A c '�. kt '� _N�,��.`, •::```` `�`,Y s;', 4 9,E,�,.9.,,h�r.�d �-.3*ICY �_,,' � '.:.at �ria`. c W 9^ g U) U) U CO M d. — U-) 2 Eo o co 06 =3c� co 0- APN : 359 �25�047 n Lo a) co Q c c) E . . ti U d- W Single Family ■ ■ Dwelli v) ng 'PLO Cu.EC'KEL) B C: CUPERTINO ?,.i oidinc f�Q�3?f�ftt��tY OMi�tJ4�{TYD�rELO ENTDEPA�TNIENT pp !'�pp' n "G�l-CuppERTl�iO � 4 �icarions?�4J5T be!rept at the _ r, �E��• is set of plans and spe„i, � ) Y ` jobs;,n d�,rir,ti conszli:°:,=iOn- It is unla%ifui to mi n any Oil"t;4�S OY^l cCcil01 S On S3m8;or tO 00 ` therhfrorn,WilhOut ap.rov'?I fr©m ti 9Q Building Gfiicial. •a.,..�,z,- ;.,wen n�°r4175�1i9?!1<�.P� .-�..' yciticati ,ns q-HALL NOT „ Sheet 1 Plot Plan Drawn 10/22/1013 �V�, NTS Mono X Neon LG Electronics:LG29ON1C-G-3 Specifications: Two Story Single Family Dweling Cells 6 X 10 M Cell type Monocrystalline °- c Dell dimensions 156 x 156 mm2 /6x 6 square inches 0 m Dimensions (L x W x H) 64.57 39.37 1.38 Inches EMT With � Q 6#12 THHN-2&1 O O ^' Static wind load 2400 Pa / psf #8 Ground Run o 0 N 37 Ib 16.8 k9 under eve > p cn Q N Connector Type MC4 E Q C0 O UL 1703 cn � U) U ED El Q® ---------------..........................................- CD -------- ----------------------- --------------------- }------------------------. 39.37" N (1) X --EVE- - - - - - - - - - - - - - - - - - - - M 5 t 64.57" �� £a - - - - - - z O U) Load Calculations: ' - - - - - - N y ,z �e � 3,_0„ l ge � O i O T Weight of PV system is 2.706 lbs per square foot *no engineering required O m � � ? k t s i 39.37" x 64.57" = 2542.12 square inches/144 = 17.65 Square Feet Surface Area of moduleCn o mm `G Number of modules is 18 x 17.65 = 317.70 Square Feet of surface area CD �e � � �� ❑ X Weight of modules is 37.2 x 18 = 669.6 lbs N - - - m Z 3 � -n �� "� �,, .. w s 5t`.�s �. a 4 '� �A, r a Q O J '` ae''.' �tsF'? A fica"'.\ 2✓ t 3 d '� `yy' 3,E \y Co Weight of Enphase Micro Inverters is 3.5 lbs each x 18 = 63 lbs. N � � � A, o - Weight of UniRac SMR Rail is .65 If Total inches of rail is 1,476/12 = 123 x .65 = 79.85 lbs. �' l - - CL QX Weight of stand off flashing and L bracket is 1 .25 Ib ea x 38 pieces = 47.50 lbs. � _ -�-� SA Total weight of PV Array is 859.95 lbs/317.70 Square Feet of surface area = 2.706 lbs. u � � �� � � 4 Total point load is 859.95/38 standoffs = 22.63 lbs per point load. 2 0 � r Existing single layer roof 50 Year Presidential Series CD E Cn ►� �, W Notes to installer X �- �� +� d- �� 001 LO 1. All standoffs shall be spaced no further than 48" on roofspansNOR - � 2. All standoffs shall be caulked and flashed per National Roofing standardsCD ° O 3. A minimum of 2" embedment into rafters or field installed Skylight O op blocking only not field mounts without backing W Q O O Cn 4. Care should be taken in hot temperatures to not damage roof by walking without cooling it down CD -� co d' W, Vj 5. Penetrations shall be predrilled and in the center of the wood rafter o F I®1 o FCD 0) =000 � Composition Roof Typical -v v CD Ridge 0 *Maximum height is 10" Maximum allowed is 18" by city of Cupertino, CA 0 o E CL 0 O O � U to d' > O 's_ O C 0) U n Q c N U) U O U Roof Mounting Detail � O o co 0C: co 0 Maximum height above roof Is 12 to top of Solar Module Z � E r- a) cY Mounting Detail �- � Q To °�0 Notes: . . �- U Ni- W Galvani ed 2 lag bolts per 1 . Top of Modules to top off roof 10.5"+ - 1" stand off Doug Fir Maximum pull out for 1" 5/ 2. All Standoffs and roof penetrations shall have flashing 16" lag bolt is 266 and 665 for 2-1/7" imbedment Galvanized Solar 3. No conduit shall rest on roof allow at least 2" above roof -� 3���':UPERTINO nent inti "�s?�a UniRack 2 Piece 6" Roof Jack Flashing over 4. All wires shall be supported with clips or tie wraps and shall not lay on roof n j Stand Off ' Y Stanchion typical Ir iE t; iti .i0iii Provide Polyurethane caulking on fag bolts and base 4$" between Sheet 2 Standoff Attachment Detail j Maximum Drawn 10/22/1013 %4" = 1 foot N O O Mono X Neon LG Electronics:LG290N 1 C-G-3 0 Two Story Single Family Dweling Specifications: Cells 6 X 10 0 CCS Cell type Monocrystalline °- E Dell dimensions 156 x 156 mm2 / 6x 6 square inches 0E Dimensions (L x W x H) 64.57 39.37 1.3$ Inches %"EMT With Q (� 6#12 THHN-2&1 O O z Static wind load 2400 Pa / sf #8 Ground Run p T N O p Enphase Micro Inverters have an isolated ground and does not require a separate Bond Wire. r 37 Ib 16.8 kg Enphase Trunk Cable is supported with Enphase support Clips to rail. Enphase Trunk Cable Under eve d Q Q) Connector Type MC4 12-3 with Ground Q > 0 LO UL 1703 c°n M O Chimney �-- ------------------------------- ......... .................. ......---------.... .......---------......---- 39.37" N O X — — — - - - - - — - - Array B Circuits #3,4, - 6 Modules 1 b to 6b with micro inverters Single Line Drawing Solar Modules LG Electronics: LG290N1W-G3 Micro Inverters Enphase Energy:M250-60-2LL-S2x(-ZC) (-NA) N STC Rating is 5.22 kW DC c� Watts Calculation: 6 x 250 Maximum Output = 1 ,500 Watts/240V = 6.25 Amps Roof -- � PTC Rating is 4.806 kW DC o E �o2Poe ) ) + + + + + + W-10 CEC Rating with corrections is 4.424 kW AC a Toggle - -DC +-DC -DC- DC -DC- DC - +-DC -DC ®- --- ----- -- --- AC Inverter AC Inverter AC Inverter --- AC Inverter ---- AC Inverter AC inverter --- C A D Switch -- - - mo- Annual Production is 6,835 kWh a year on aveage 4._ _ __. Disc. -- X :X.Y X_ X X_- X.._;. X. W a -mm ,:,, ,. ,, �._, 00 m z Rail Clips � ---- -- ------- -------- -------- - ---- ---- - --- Alternate Lay in Lug Z WEEB-UMC _ ilsco Biba with#10 (n ' Bare copper O L_ #8 Bond Wire to Under Modules Bond Rails O I •U CF) O I I 1 Roof Mounted AC 2-Pole O O Toggle CL Switch Disc. Array A Branch Circuit #1,2 - 12 Modules 1 a to 12a with micro inverters U Solar Modules LG Electronics: LG290N1W-G3 (� I Micro Inverters Enphase Energy:M250-60-2LL-S2x(-ZC) (-NA) 00 #8Bond Wire Watts Calculations 250 watts x 12 = 3000 Watts/240 = 12.5 Amps Provide Signage Per Article 690 NEC 2008 and 2010 requirements w IT- Bond Railsls I i y �z See Sheet 5 for Signage Placards '�/ W F1 +-DC +-DC +-DC +-DC +-DC - +-DC +-DC -DC +-DC DC �zn. - - - - - AC Inverter AC Inve ter - - - - z AC Inverter AC Inverter AC Inverter AC Inverter AC Inverter AC Inverter AC Inverter AC Inverter AC Inverter = ' � --------- ------- --- ------- - ------ - ------- ------- ----- ----------- -------- AC Inverter �� i �1 D L X" - X X X ,. .,:,�.�_..:,... - X..�.. .: X �.._s-;X,._.,. ;.. „..,.., �(,.;:, ....�...,,., . �(_G�, E.;:, .. �.:,..X_� .:. , .. ,.,. ,-,_,.�(_<., ..�„ �.... ,,;,. X...�. �D C W 0 2 00 ver Current Protection Device and buss Rating 200 Amps MZ L0 I X X X X . X...; X.w . ;, .- , X �aX :, � - - I` Manufacture of Main Panel Arrow Harte Murray O #8 Bond Wire to Bond Rails n f , I , O , O O 1 , I s I , Square D I , HOM6121_100RB I ; I , 1 , I , Visible ----------------------------------------------- T' - Solar Utlllty ' interactive I Disconnect 20Breaker WARNING PANEL IS Square D ENEGIZED FROM 2 SOURCES OF POWER 20 D222NRG i I Install 2 30 AMP ; Fuses 10 10 30 30( l ; Solar '----------------------- --- -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------;---------- 20 interactive i ', I I �� Breaker , I , --20 - Where 0 - Where exposed to exterior Total Amps of PV Arrays A, B, C Branch Circuits #1,2 - #3,4 - #5,6 =(14.58 + 11.46 + Conductors at roof shall be 7.29 Amps = 33.33 Amps peak Rated amperage of Inverters output is 1 amp x 31 = 313 30 I THHN-2 Rated '; Amps Continues x 1.25 = 38.25 Amp Maximum Circuit Breaker or fuse is 40 Amps I ------------------------------------------ -;--------------------------------------------------------------------------------------------------------------------------------------------------------- --------------------------'-----------;--------- -0 O �, i SECONDARY POWER ----------- C E 1 O 0----------------- ------- {} 0-- - ------- - ---------------- SOURCE LOCATED Main Service Panel Sizing Exception to Article 690 with Calculaitons -O- ------- -----0 ----------- ---------------------------------------------------------------- ON ROOF PV SYSTEM I0 O 1/" EMT with 10 I U-) v #12 THHN-2 Cu Total Amps of PV Arrays A B Branch Circuits #1 2 - #3 4 = 12 Amps + 6 Ams for a total amperage of 18 Amps AC #6 Bonding - 1"8 Green Bond p y ( p p ) p wire Existin Maximum Interactive Connected Load 20% of 200 Amps is 40 Amps Existing - d- Bonding and grounding methods for rails and modules Grounding 18 Amp x 1.25 Continues Use over 3 hours = 22.5 Amps Passes 20% Rule on Main Over current Protection. ;________________________________________________________________________________________________________________________________________________ _________f________________-- #6 where exposed-on bonding___________________------------ Electrode 8' �' C0 N O 5/8" Rod - > ` - Rail and Panel Bonding clip Detail j 6' Minimum O 0 'm O � Figure 2.Insert a bolt in the a 0 aluminum rail or through the LO ♦/�� Q M clearance hole in the stainless steel Alternate method of bonding panels New 8' N v, W� (� X J at washer.Place the stainless steel L v A-Aat washer on the bolt, oriented Suplemental Direct Burial Tin Plated Copper Burnd THHN-2 Ground Rod O O so the dimples will contact the pp y aluminum rail. Place the lug or lisco GLB4 ground Lug mounted to s - portion on the bolt and stainless /a EMT With 4 #8 steel fl at washer.Install stainless each module with a stainless steel 8/32 x _ 0,,6x •_ steel tl at washer,lock washer and .5" with star washer and nut. Sand Micro Inverters Enphase Energy-M250-60-2LL-S2x(-ZC) (-NA) THHN-2 Copper Wires - W 0 L nut. Tighten the nut until the dimples are completely embedded surface at contact point and apply NoLux UL1741/IEEEE1547, FCC PART 15 CLASS B ^ L. Lo (3 C ii into the rail and fug. The antioxidant compound L.J.. M embedded dimples make a gastight Nominal voltage Range 240V/206V-269V Per Article 690.64 B O O r _= mechanical connection and ensure good electrical connection U }. 1 1 1 " between the aluminum rail and Maximum Power is 18 x 290 = 5,220 STC Watts DC Nominal output current is 1 amp �V LLJ .r the lug through the WEEB. - U)L Clips and Maximum Power PTC DC is 18 x 267 = 4,806 Watts UL 1741/1EE 1547 18 x 1 amp = 18 Total Amps Wily Electronics LLC's Solar Modules LG Electronics: LG290N1W-G3 UniRac Document Number 104-0404-000010-011 CSI System rating watts AC with corrections is 4,424 Watts AC /240 = 20.025 AMPS 1. All panels shall be bonded with Burndy WEEB Clips Notes: # �-iN�� 1. All Rails shall be bonded with a #8 Conductor I "'� t 2. Each micro inverter is insulated and does not need to be bonded ; - 1 ;3uii ?ar� rmn;. * See Document D: PCMAN-Alternate Grounding Addendum-n.9.11 2. All Panels shall be bonded with either a ground lug or approved Weebe Ground plate i Date 01/07/2011 Type of Cell Mono-crystalline Type I Tolerance Pmax +3/-0% 3. Maximum Inverters per 20 Amp Branch Circuit is 16 Micro Inverters Rail Bonding Detail 3. Approved water tight steel connectors shall be used on all exterior conduits J C { Temperature coefficient of Voc %/K -.31% 4. All PV bonding shall have an irreversible ground crimp where spliced , til i 2 / Clip .Bonding 4All Wiring shall comply with the NEC article 690 Figure 1.Slide UGC-1 grounding 2 clip Cell Configuration 60 in series UL 1703 5. All conductors shall be THHN-2 Rated clip into top mounting slot of rail. Open Voltage Circuit (Voc) 36.0 Vdc Torque modules in place on top .� X-~ � - = .`:': 6. Provide signage per NEC Article 690 See Sheet 4 of clip. Nibs will penetrate rail i Maximum Power Voltage (Vmpp) 28.9 VDC anodization and create grounding -- -- X path through rail. , , ,:f = - Short Circuit Current (Isc) 7.80 Amps S heel 4 _. Solar Modules LG Electronics: LG290N1W-G3 X Maximum Power Current (Ipm) 7.25 Amps � Module Efficiency /0 16.2 y (° ) Single Line Drawing *All Signage and labels shall confirm with the local jurisdiction and NEC. Article 690 Requirements. See Sheet #5 Maximum System (DC) Voltage 600 V q Fire Rating Class C w Series Fuse Rating 15A UL Listed 1703 Drawn 10/22/1013 Fire Rating Class C Series Fuse Rating 15 Amp NTS