Installation/User Manual
Contents
1. Installation User Manual APsystems YC500 A Photovoltaic Grid connected Inverter Version 4 2 7 15 gt APsystems APsystems 600 Ericksen Ave NE Ste 200 Seattle WA 98110 TEL 844 666 7035 EMAIL info APsystems com WEB www APsystems com All Rights Reserved b U efrog 50 r TABLE OF CONTENTS IMPORTANT SAFETY INSTRUCTIONS Radio interference statement ttt 2 APsystems Microinverter System 1 5 APsystems Microinverter 500 series Introduction 5 APsystems Microinverter System 1 6 Additional Installation components from APsysterms e 6 Required Parts and Tools from installer 6 Installation Procedures ttt 7 Step 1 Installing the AC Branch Circuit Junction Box Step 2 Attaching the APsystems Microinverters to the Racking or the PV RR 8 Step 3 Connecting the APsystems Microinverter to the PV 9 coL Grona 1 Step 5 Connecting APsystems Microinverters to the 11 Step 6 Completing the APsystems Installation Map 12 APsystems Microinverter system operating 13 Troubleshooting 7 ttt 14 e Status2. Dd P 21 APsystems Installation User Manual 3SVHd 33HHL ABO MN Sample Wiring Diagram 120V 208V Three Phase Java ONS OV N SVHd SSSR AI LINN NOLYJINNWNO2 TE Hild NOLITSISISIO ASYINI IJYHL sweishsdy b 4 31008 OIN vSOvCOXs OL NOLLO3NNOO 13NH3H13 LNDYID HONYHS NOLOSNNOO OV N3dO Wad 00504 8 OL dn JHL NO Q3TIVLSNI dvO A remet j at LIT BB at T T LL T LLIIHILLILT ITI 11 ET EEREN J ERR REE Pee ET E ELIIHLDLLLILEILLILLTLLILLLIJ II ELLE ELLE ERE REE Pee ERR RE Pee II LELIHILELIL TENET EELEL ELLE LY ERE REE Pee II ELLE EE ERR RE Pee I LILTLIILLLLEEBRI LIILLI T I LI TJ ERE REE eRe OV N 3LIHM z1 0v18 11 22 APsystems YC500A MIW Installation User Manual NOTE The ECU should function properly when connected to L1 L2 or L3
3. C Connect the AC cable of the replacement Microinverter and the neighboring Microinverter to complete the branch circuit connections D Close the branch circuit breaker and verify operation of the replacement Microinverter APsystems YC500A MIW Installation User Manual 17 N AN WARNING Be sure to verify the voltage and current specifications of your PV module match with those of the Microinverter Refer to the APsystems website for a list of approved PV modules WARNING You must match the DC operating voltage range of the PV module with the allowable input voltage range of the APsystems Microinverter WARNING The maximum open circuit voltage of the PV module must not exceed the specified maximum input voltage of the APsystems Microinverter APsystems YC500A MIW Installation User Manual 18 APsystems 5 Microinverter Datasheet INPUT DATA DC Recommended PV Module Power Range STC MPPT Voltage Range Maximum Input Voltage Maximum Input Current OUTPUT DATA AC Rated Output Power Peak Output Power Maximum Output Current Maximum Output Fault Current peak Maximum Output Fault Current RMS Maximum Output Fault Current Duration Reactive Current Nominal Output Voltage Range 240V Nominal Output Voltage Range 208V Nominal Output Frequency Range Power Factor Total Harmonic Distortion Maximum Units Per Branch EFFICIENCY Peak Efficiency CEC Weighted Effici
4. AC circuit breaker This means they are producing power normally but have not yet connected to the ECU After the ECU has been plugged in and acknowledges the Microinverters they will start to blink green every 10 seconds Plug in the ECU and follow the instructions according to the manual for the ECU The APsystems Microinverters will start to send performance data over power line to the ECU The time required for all the Microinverters the system to report to the ECU will vary with the number of Microinverters in the system You can verify proper operation of the APsystems Microinverters via the ECU See the ECU Installation and Operation Manual for more information APsystems YC500A MIW Installation User Manual 15 Qualified personnel can use the following troubleshooting steps if the PV system does not operate correctly MN Status Indications and Error Reporting START UP LED One quick red light followed by three short green blinks when DC power is first applied to the Microinverter indicates a successful Microinverter startup Operation LED Flashing Slow Green 10 sec gap Producing power and communicating with ECU Flashing Fast Green 2 sec gap Producing power and not communicating with ECU Flashing Red Not producing power GFDI Error A solid red LED indicates the Microinverter has detected a Ground Fault Detector Interrupter GFDI error in the PV system Unless the GFDI error has been cleared the
5. APsystems Microinverter without first disconnecting the AC power qualified professionals should install and or replace APsystems Microinverters Perform all electrical installations in accordance with local electrical codes Before installing or using the APsystems Microinverter please read all instructions and cautionary markings 1 the technical documents and on the APsystems Microinverter system and the v Be aware that the body of the APsystems Microinverter is the heat sink and can reach high temperatures reduce risk of burns do not touch the body of the Microinverter v Do NOT attempt to repair the APsystems Microinverter If it fails contact APsystems Customer Support 206 855 5100 to obtain an RMA number and start the replacement process Damaging or opening the APsystems Microinverter will void the warranty APsystems YC500A MIW Installation User Manual 1 Radio Interference Statement MN RADIO INTERFERENCE STATEMENT FCC Compliance The equipment complies with the limits for a class B digital device pursuant to part 15 of the FCC Rules which are designed to protect against harmful interference in a residential installation The equipment could radiate radio frequency energy and this might cause harmful interference to radio communications if instructions were not followed when installing and using the equipment But there is no guarantee that interference will not occur 1 a
6. For more information please see the Technical Data page p 18 of this manual MODEL NUMBER AC GRID PV MODULE MODULE CONNECTOR YC500 60Hz 240V 60 72 Cell MC 4 Type or Customize Maximum units per branch of YC500 Max parallel combination of APsystems modules 7 branch for 20A breaker 14 PV modules The APsystems YC500 has two independent DC inputs each with independent MPPT control and data monitoring The following figure shows the APsystems YC500 Microinverter schematic DC to DC modules I i 1 sa ee eee eee eee ee I lacu EE 5 I I I Control ry ble DCtoDC DCtoAC EMMI AC signal filtering breaker i EE I I F CE Grid modules 1 i m m I I a D I PV modules 2 PV Control Control data modules signal signal collection data collection ae Optical isolation Grid data collection Be Figure 2 APsystems Installation User Manual APsystems Microinverter System Installation A PV system using APsystems Microinverters is simple to install Each Microinverter easily mounts on the PV racking directly beneath the PV module s Low voltage DC wires connect from the PV module directly to the Microinverter eliminating the risk of high DC voltage Installation MUST comply with local regulations and technical rules WARNING Perform all electrical installations in acc
7. LED will remain red and the ECU will keep reporting the fault After the ground fault error is fixed follow the instructions 1n the ECU Installation and Operation Manual to clear this GFDI error reporting Other Faults All other faults are reported to the ECU Refer to the ECU Installation and Operation Manual for a list of additional faults and troubleshooting procedures WARNING Only qualified personnel should directly handle the APsystems Microinverter WARNING Never disconnect the DC wire connectors under load Ensure that no current is flowing in the DC wires prior to disconnecting WARNING Always disconnect AC power before disconnecting the PV module wires from the APsystems Microinverter Either disconnecting by the appropriate AC circuit breaker or unplugging the first AC connector of the first Microinverter in a branch circuit 1s suitable as a means of disconnection APsystems YC500A MIW Installation User Manual 14 WARNING The APsystems Microinverter is powered by PV module DC power AFTER disconnecting the DC power when reconnecting the PV modules to the Microinverter be sure to watch for the three short LED flashes Ms A non operating APsystems Microinverter There are two possible overall areas of trouble A The Microinverter itself may be having problems or B The Microinverter itself is working fine but it is having trouble communicating with the ECU The items below refer to Microinverter issues
8. Indications and Error 14 Operation LED siipeen aei E Ree iar EESE iiS 14 14 14 Troubleshooting a non operating APsystems Microinverter 15 16 Replace tts 17 Technical Dota E 18 19 Efficency Curves ttti 20 DISOESITIS 21 e Sample Wiring Diagram 120 240 Split Phase 21 e Sample Wiring Diagram 120V 208V Three Phase 22 APsystems YC500A MIW Installation User Manual TT IMPORTANT SAFETY INSTRUCTIONS SAVE THESE INSTRUCTIONS This manual contains important instructions to follow during installation and maintenance of the APsystems Photovoltaic Grid connected Inverter Microinverter To reduce the risk of electrical shock and ensure the safe installation and operation of the APsystems Microinverter the following symbols appear throughout this document to indicate dangerous conditions and important safety instructions WARNING This indicates a situation where failure to follow instructions may cause a serious hardware failure or personnel danger if not applied appropriately Use extreme caution when performing this task WARNING SYMBOL NOTE This indicates information that is important for optimized Microinverter operation Follow these instructions closely NOTE SYMBOL SAFETY INSTRUCTIONS v Do NOT disconnect the PV module from the
9. OT connect APsystems Microinverters to the utility grid or energize the AC circuit until you have completed all of the installation procedures as described 1n the following sections Installation Figure 3 A Install an appropriate junction box at a suitable location on the PV racking system typically at the end of a branch of modules B Connect the open wire end of the AC branch end splice cable into the junction box using an appropriate gland or strain relief fitting C Wire the conductors L1 RED L2 BLACK N WHITE D Connect the AC branch circuit junction box to the point of utility interconnection NOTE Be sure to size the AC wire to account for voltage drop between the AC branch circuit junction box and the point of utility interconnection See wire size diagram on following page APsystems Installation User Manual YC500 Number per Branch 6 7 EXTERNAL WIRE SIZE AWG MAXIMUM EXTERNAL CABLE LENGTH ft 12 257062505 cS T702 IRA 1O 579 4 268 6 198 9 149 7 125 82 5 8 S2 418277010177 eios 74555 e 74246 948 6 6714 4971 574 5 280 8 205 7 7 is the maximum number branch with a 20 amp breaker Step 2 Attaching the APsystems Microinverte
10. STEMS MICROINVERTER 3 Check the AC branch circuit interconnection between all the Microinverters In rare cases the wire in the AC plug may have worked loose This will need to be reviewed by a qualified electrician Verify each inverter 1s energized by the utility grid as described 1n the previous step 4 Make sure that all AC breakers are functioning properly and are closed 5 Check the DC connections between the Microinverter and the PV module 6 Verify the PV module DC voltage 1s within the allowable range shown in the Section 8 Technical Data of this manual 7 If the problem persists please call APsystems Customer Support at 844 666 7035 WARNING Do not attempt to repair the APsystems Microinverter If troubleshooting methods fail please return the Microinverter to your distributor for replacement APsystems YC500A MIW Installation User Manual 16 MN Follow this procedure to replace a failed APsystems Microinverter A Disconnect the APsystems Microinverter from the PV Module in the order shown below 1 Disconnect the AC by turning off the branch circuit breaker 2 Disconnect the first AC connector in the branch circuit 3 Disconnect the PV module DC wire connectors from the micro inverter 4 Remove the Microinverter from the PV array racking B Install a replacement Microinverter to the rack Remember to observe the flashing LED light as soon as the new Microinverter 1s plugged into the DC cables
11. ectrical code for grounding conductor sizing requirements Connect the grounding electrode conductor to the microinverter ground clamp NOTE The AC output neutral is not bonded to ground inside the microinverter APsystems YC500A MIW Installation User Manual 1O MN Step 5 Connecting the APsystems Microinverter to the PV Module gu a a M M 2 nr A qui Figure 8 A Check the Microinverter datasheet for the maximum allowable number of Microinverters on one AC branch circuit B Install a protective end cap on the open AC connector of the last Microinverter in the AC branch circuit C Plug the AC female connector of the last Microinverter into the male connector of the next Microinverter and so on to form a continuous AC branch circuit Figure 9 WARNING Do NOT exceed the maximum number of Microinverters in an AC branch circuit as displayed on the unit label APsystems YC500A MIW Installation User Manual 11 MN Step 6 Completing the APsystems Installation Map Fill in the APsystems Registration Cards which provide system information and the installation map Feel free to p
12. ency Nominal MPP Tracking Efficiency MECHANICAL DATA Storage Temperature Range Operating Temperature Range Ambient Operating Temperature Range Internal Dimensions WxHxD inches Dimensions WxHxD mm Weight Enclosure Rating Cooling FEATURES amp COMPLIANCE Communication Warranty Emissions amp Immunity Compliance Safety Class Compliance Grid Connection Compliance Specifications subject to change without notice please ensure you are using the most recent update found at www APsystems com 600 Ericksen Ave NE Suite 200 Seattle WA 98110 844 666 7035 180 510W 22 45V 59V 12A X2 500W 550W 2 08A 240V 2 4A 208V 208V 33 4A 240V 54 8A 208V 2 79A 240V 4 85A 208V 1 875ms 240V 1 639ms 240V 211V 264V 208V 183V 229V 2 59 3 60 5 2 20 99 lt 5 7 20A 240V 6 per 20A 208 SS SUO 95 959526 za osos to 85 40 F to 149 F 40 to 65 C AOE tO too E40 bomb S79 XOS XL 2 2 mim x 167mm x 29mm 5 5 Ibs 2 5kg NEMA 4X Natural Convection No Fans UL 1741 CSA C22 2 No 1071 01 2014 690 12 Power line PLC 10 years standard extendable to 25 years FCC PART 15 ANSI C63 4 2003 ICES 003 UL 1741 CSA C22 2 No 107 1 01 NEC2014 690 12 IEEE 1547 Programmable per customer and utility requirements All settings UL approved CEC registered as Altenergy Power System Inc APsystems com 76 15 All Rights R
13. eserved Efficency Curves 5 Efficency temperature Curves YC500 Eff with Ambient Temp D 93 o 92 25 o 65 C 90 i C 5 C S S S ni Ki S 5 S a S NH 100 6Pout 500W EN YC500 A Efficency Curves YC500 60Hz 240V a LAR TTN ti i i tt peer aC 111 GPS HF GSP o S 100 Pout 500W Efficiency APsystems YCSOOA MIW Installation User Manual 20 N 6 O 6 E MN Sample Wiring Diagram 120V 240V Split Phase 3SVHd A0v2 A0ZL TANVd NOLLNEINLSIG LINDYID LINDUIO Sc TANVd NOILNGINLSIQ OV HO OL N 3LIHM 617 Id V1 J18VO OV XO8 5 x E e LL LINN NOLLVOINYIWWOO A93N3 noda suie1sAsd e4 318VO H3MOd 02 Y3LNOY IQNVSavoss OL NOLLO3NNOO L3NH3H L3 QONDnOHO N33H9 TVHLOSN ALIHM 1 3019 LT 39NVHO LINDYID HONVH8 NOLO3NNOO OV N3dO 005934601 dN JHL NO G3TIVLSNI HONV g FEEFTEEE PSCC eee TNVd CEH Hml avos JE em oe 7 DERH GEN ae nx 2401
14. not communication issues addressed the manual A quick way to tell whether the issue is the Microinverter or a communication problem with the ECU 1 Diagnosing from the Microinverter A red light either blinking or solid on the Microinverter or no light at all No light or a red light means it is definitely a Microinverter problem 2 Diagnosing from the ECU a No Data Display This is probably a communication issue not a Microinverter problem b Problems with erratic display Data is displayed for some period and then no data 1s displayed most likely a communication issue 0 watts or 2 watts Possibly a Microinverter problem d Erratic data display that is not coordinating with data displays from other units most likely a Microinverter problem TO TROUBLESHOOT A NON OPERATING APSYSTEMS MICROINVERTER FOLLOW THE STEPS BELOW IN ORDER 1 Verify the utility voltage and frequency are within ranges shown in the Technical Data section of this manual 2 Check the connection to the utility grid Verify utility power is present at the inverter in question by removing AC then DC power Never disconnect the DC wires while the Microinverter is producing power Re connect the DC module connectors and watch for three short green LED flashes Troubleshoot a Non operating APsystems Microinverter continued on next page APsystems YC500A MIW Installation User Manual 15 TROUBLESHOOT A NON OPERATING APSY
15. on as the cables are plugged in and will show that the Microinverter is functioning correctly This entire check function will start and end within 5 seconds of plugging in the unit so pay careful attention to these lights when connecting the DC cables Photovoltaic panels and Microinverter DC input cable connection Xe Figure 6 Bo m EN qu m 900 ze 2392 APsystems Installation User Manual 9 ELLE N WARNING Ensure that all AC and DC wiring is correct Check that none of the AC and DC wires are pinched or damaged Be sure that all junction boxes are properly closed Step 4 Ground the System NOTE If you already use grounding washers WEEB to ground the Microinverter chassis to the PV module racking as described in Step 2C skip this step o o e o awe 6 J 1 Le fF EN Figure 7 Each APsystems Microinverter comes with a ground clamp that can accommodate a single 6 awg strand and 4 awg solid conductor Check your local el
16. ordance with local electrical codes WARNING Be aware that only qualified professionals should install and or replace APsystems Microinverters WARNING Before installing or using an APsystems Microinverter please read all instructions and warnings 1 the technical documents and on the APsystems Microinverter system itself as well as on the PV array WARNING Be aware that installation of this equipment includes the risk of electric shock WARNING Do not touch any live parts in the system including the PV array when the system has been connected to the electrical grid Additional Installation components from APsystems AC branch end cable 1 per branch sold separately Protective end cap 1 per branch sold separately MN Required Parts Tools from Installer In addition to your PV array and its associated hardware the following tools are required for assembly One AC connection junction box Mounting hardware suitable for module racking Sockets and wrenches for mounting hardware Continuous grounding conductor and grounding washers Phillips screwdriver Torque wrench APsystems YC5OOA MIW Installation User Manual 6 Installation Procedures APsystems Microinverters are designed to only operate when they can sense power coming from the grid Even if they are plugged into the PV array they will not turn themselves on until they can read power from the grid WARNING Do N
17. particular installation If this equipment causes harmful interference to radio or television reception the following measures might resolve the issues A Relocate the receiving antenna and keep it well away from the equipment B Consult the dealer or an experienced radio TV technician for assistance Changes or modifications not expressly approved by the party responsible for compliance may void the user s authority to operate the equipment APsystems YC500A MIW Installation User Manual 2 The APsystems Microinverter is used in utility interactive grid tied applications comprised of three key elements APsystems Microinverter APsystems Energy Communication Unit ECU APsystems Energy Monitor and Analysis EMA web based Monitoring and analysis system Branch J box icro inverter YELLOW L 1 BLUE L2 WHITE NEUTRAL GREEN GROUND AC Distribution Panel Figure 1 Internet APsystems YC500A MIW Installation User Manual 9 APsystems Microinverters maximize PV energy production Each PV module has individual Maximum Power Point Tracking MPPT controls which ensures that the maximum power is exported to the utility grid regardless of the performance of the other PV modules in the array When PV modules in the array are affected by shade dust orientation or any situation 1n which one module underperforms compared with the other units
18. rovide your own layout if a larger or more intricate installation map is required The layout map provided is designed to accomodate labels vertical or horizontal orientation to meet all the field PV connections 1 Each APsystems Microinverter has a removable serial number label Peel a label off and affix it to the respective location on the APsystems installation map 2 Fill out the warranty cards and email to APsystems at support APsystems com 3 APsystems will create the EMA account and email you the account information Then you can use the EMA website to view detailed performance data for your PV system APS Micyetnverter YC500 A amp Energy Communication Unit Registration Card Page 1 This map shows the physical logeffon of each micro inverter in your PV installation Each APS YC500 A Microinverter has a removable serial number label located sf its case Peel off the label and affix it to the corresponding location on your APS installation map Figure 1O APsystems YC500A MIW Installation User Manual 12 APsystems Microinverter System Operating Instructions MN To operate the APsystems Microinverter PV system 1 Turn ON the AC circuit breaker on each Microinverter branch circuit Turn ON the main utility grid AC circuit breaker Your system will start producing power after a five minute wait time The units should start blinking green every 2 seconds five minutes after turning on the
19. rs to the Racking or the PV Module Frame Figure 5 A Mark the location of the Microinverter on the rack keeping in mind the PV module junction box or any other obstructions B Mount one Microinverter at each of these locations using hardware recommended by your module racking vendor C GROUNDING WASHER If using the appropriate grounding washer check with a licensed electrician attach the grounding washer between the frame and the Microinverter WARNING Prior to installing any of the Microinverters verify that the utility voltage at the point of common connection matches the voltage rating on the Microinverter label APsystems YC500A MIW Installation User Manual 8 WARNING Do not mount the Microinverter in a location that allows exposure to direct sunlight Allow a minimum of 3 4 1 5 cm between the roof and the bottom of the Microinverter to allow proper air flow NOTE Connecting cables steps 3 5 can be done 1 any order but DO NOT connect to the utility power grid until all the steps are completed MN Step 3 Connecting APsystems Microinverters to the PV Module Connect the DC cables from the PV Modules to the Microinverter per the diagram below Note When plugging in the DC cables the Microinverter should immediately blink green three times This will happen as so
20. the APsystems Microinverter ensures top performance from the array by maximizing the performance of each module within the array More reliable than centralized or string inverters The distributed APsystems Microinverter system ensures that no single point of system failure exists across the PV system APsystems Microinverters are designed to operate at full power at ambient outdoor temperatures of up to 149 F 65 C The inverter housing is designed for outdoor installation and complies with the IP65 environmental enclosure rating Simple to install You can install individual PV modules in any combination of module quantity orientation type and power rate EN Smart system performance monitoring and analysis The APsystems Energy Communication Unit is installed by simply plugging it 1nto any wall outlet and providing an Ethernet or Wi Fi connection to a broadband router or modem After installing the ECU the full network of APsystems Microinverters automatically reports to the APsystems Energy Monitor and Analysis EMA web server The EMA software displays performance trends informs you of abnormal events and controls system shutdown when it is needed See ECU manual for instructions APsystems YC500A MIW Installation User Manual 4 APsystems Microinverter 500 Series The APsystems 500 series Microinverters connect with the Split phase grid and operate with most 60 and 72 cell PV modules
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