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TABLE OF CONTENTS

IMPORTANT  SAFETY  INSTRUCTIONS

 

1

Radio interference statement

 

2 

APsystems YC500-A System Introduction

 

3

APsystems microinverter system installation

 

6

      Additional installation components from APsystems

 

6

      Required parts and tools from installer

 

6

Installation procedures

 

7 

Step 1 –  Installing the AC Branch Circuit Junction Box

 

Step 2 –  Attaching the APsystems microinverters to the racking or the PV 

module frame

 

8

Step 3 –  Connecting the APsystems microinverter to the PV module

 

9

Step 4 –  Ground the system

 

10 

Step 5 –  Connecting APsystems microinverters to the AC cables

 

11

Step 6 –  Completing the APsystems installation map

 

12

APsystems microinverter system operating instructions

 

13

Troubleshooting

 

14 

 

• Status indications and error reporting

 

14 

 

• Operation LED

 

14

 

• GFDI error

 

14 

 

• Other faults

 

14

Troubleshooting a non-operating APsystems microinverter

 

15-16

Replace a microinverter

 

17

Technical data

 

18-19

Efficency curves

 

20

Wiring diagrams

 

21

 

• Sample wiring diagram – 120V/240V split phase

 

      

21

 

• Sample wiring diagram – 120V/ 208V three phase

 

                 

22

iii

APsystems YC500-A Installation/User Manual 

Summary of Contents for YC500A

Page 1: ... Manual APsystems YC500 A Photovoltaic Grid connected Inverter Version 4 2 11 15 All Rights Reserved APsystems 600 Ericksen Ave NE Ste 200 Seattle WA 98110 TEL 844 666 7035 EMAIL info APsystems com WEB www APsystems com ...

Page 2: ... the APsystems microinverter to the PV module 9 Step 4 Ground the system 10 Step 5 Connecting APsystems microinverters to the AC cables 11 Step 6 Completing the APsystems installation map 12 APsystems microinverter system operating instructions 13 Troubleshooting 14 Status indications and error reporting 14 Operation LED 14 GFDI error 14 Other faults 14 Troubleshooting a non operating APsystems mi...

Page 3: ...erter operation Follow these instructions closely SAFETY INSTRUCTIONS Do NOT disconnect the PV module from the APsystems microinverter without first disconnecting the AC power Only 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...

Page 4: ...instructions were not followed when installing and using the equipment But there is no guarantee that interference will not occur in a 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 r...

Page 5: ...stems Energy Communication Unit ECU APsystems Energy Monitor and Analysis EMA web based monitoring and analysis system Figure 1 APsystems YC500 System Introduction 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 monito...

Page 6: ...oss the PV array 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 NEMA 6 environmental enclosure rating Simple to install You can install individual PV modules in any combination of module quantity orientation type and power rate Smart system performance...

Page 7: ...ge p 19 of this manual 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 Figure 2 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 2...

Page 8: ...r 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 P N AC Cable F Protective end cap 1 pe...

Page 9: ...d in the following sections Step 1 Installing the AC branch circuit junction box 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 cable into the junction box using an appropriate gland or strain relief fitting C Wire the conductors L1 RED L2 BLACK NEUTRAL WHITE NOTE Be ...

Page 10: ... 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 Figure 5 Installation Procedures Step 2 Attaching the APsystems Microinverters to the Racking or the PV Module Frame a Mark the location of the Microinverter on the rack with respect to the PV module junction box or any other obstruc...

Page 11: ...rs when DC voltage is first applied The LED will not flash when the second panel is connected 9 Figure 6 Photovoltaic panels and microinverter DC input cable connection MC4 Connectors APsystems YC500A I Installation User Manual 11 Figure 9 Each APsystems Microinverter comes with a ground clamp that can accommodate a single 6 awg strand and 4 awg solid conductor Check your local electrical code for...

Page 12: ...grounding washers WEEB to ground the Microinverter chassis to the PV module racking as described in Step 2 skip this step Figure 9 Each APsystems Microinverter comes with a ground clamp that can accommodate a single 6 awg strand and 4 awg solid conductor Check your local electrical code for grounding conductor sizing requirements Connect the grounding electrode conductor to the microinverter groun...

Page 13: ...pen AC connector of the last Microinverter in the AC branch circuit Figure 8 WARNING Do NOT exceed maximum number of Microinverters in an AC branch circuit as displayed on the Technical Data page p 18 of this manual NOTE Please contact with ALTENERGY POWER SYSTEM Inc for the purchase of AC extended cables when microinverters which are installed space far and AC cable is not long enough APsystems Y...

Page 14: ...r com c APsystems will create the EMA account and email you the account information Then you can use the EMA website to view detailed performance of your PV system You can learn more information on energy monitoring and analysis system from APsystems website www APsystems com Figure 11 Microinverter serial numbers A B A B A B 101123458044 101123458045 101123458054 Figure 1 Step 6 Completing the AP...

Page 15: ...rmally but have not yet connected to the ECU 4 Plug in the ECU and follow the instructions according to the manual for the ECU 5 After the ECU has been plugged in and acknowledges the microinverters they will start to blink green every 10 seconds 6 The time required for all the microinverters in the system to report to the ECU will vary with the number of microinverters in the system Once communic...

Page 16: ...less the GFDI error has been cleared the LED will remain red and the ECU will keep reporting the fault After the ground fault error is fixed follow the instructions in 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 troubleshootin...

Page 17: ... is more than likely 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 is displayed most likely a communication issue c 0 watts or 2 watts Possibly a microinverter problem d Erratic data display that is not coordinating with data di...

Page 18: ...d in 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 that the PV module DC voltage is 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 repa...

Page 19: ...ing LED light as soon as the new microinverter is plugged into the DC cables 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 WARNING Be sure to verify the voltage and current specifications of your PV module match that those o...

Page 20: ...mum Output Fault Current Duration 1 875ms 1 639ms Reactive Current 0 1A Extended Output Voltage Range 181V 298V Nominal Output Frequency 60Hz Default Output Frequency Range 59 3Hz 60 5Hz2 Extended Output Frequency Range 55 1Hz 64 9Hz Power Factor 0 99 Total Harmonic Distortion 3 Maximum Units per Branch 6 for 20 Breaker3 7 for20A Breaker3 Efficiency Peak Efficiency 95 5 CEC Weighted Efficiency 95 ...

Page 21: ...CC Part15 ANSI C63 4 ICES 003 Monitoring Life monitoring via EMA software Safety Class Compliance UL1741 CSA C22 2 No 107 1 01 Grid Connection Compliance IEEE1547 All Rights Reserved 1 The default AC output is 240V mode For 208V mode please set the AC output range through ECU 2 Programmable through ECU to meet customer need 3 Depending on the local regulations Specifications subject to change with...

Page 22: ...icency temperature curves YC500 A Efficency curves ALTENERGY POWER SYSTEM INC 8 Efficiency Curves YC500 NA Efficiency temperature Curves YC500 NA Efficiency Curves ALTENERGY POWER SYSTEM INC 8 Efficiency Curves YC500 NA Efficiency temperature Curves YC500 NA Efficiency Curves ...

Page 23: ...hase AC JUNCTI ON BOX ENER GY COMMUNICATI ON UNIT ETHERNET CONNECTI ON TO BROADBAND ROUTER 120 VAC POWER CABLE AC BRANCH END CABLE RED L1 BLACK L2 WHITE N METER BRANCH END C AP INSTALLED ON THE OPEN AC CONNECTOR UP TO 7 YC500 PER BRANCH CIRCUIT Apsystems YC500 NA 20 AMP CI RCUI T BREAKER PER BRANCH CIRCUIT TO METER OR AC DISTRIBUTION PANEL NEUTRAL GROUND DISTRIBUTI ON PANEL 120V 240V SPLI T PHASE ...

Page 24: ... THE OPEN AC CONNECTOR UP TO 6 YC500 PER BRANCH CIRCUIT 20 AMP CIRCUIT BREAKER PER BRANCH CIRCUIT TO METER O R AC DISTRIBUTIO N PANEL NE UTRAL GROUND DISTRIBUTIO N PANEL 120 V 208V THREE PHASE SOLAR PA NEL ETHERNET CONNECTION TO BROADBAND ROUTER Apsystems YC500 NA 120 VAC POWER CABLE ENERGY COMMUNI CATION UNIT ECU Figure 15 NOTE The ECU should function properly when connected to L1 L2 or L3 Sample...

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