APsystems YC1000-3-3 User manual

Installation / User Manual
Rev 1.3
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ALTENERGY POWER SYSTEM Inc.
WEB: www.APsystems.com
APsystems Europe
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© All Rights Reserved (For Europe)
APsystems YC1000-3
Photovoltaic 3-PhaseGrid-connected Microinverter

APsystems YC1000-3 Installation/User Manual
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Table of Contents
Important Safety Instructions..............................................................................................................2
Radio interference statement...............................................................................................................................2
Safety Instructions................................................................................................................................................ 3
Symbols replace words on the equipment, on a display..................................................................................... 4
APsystems YC1000-3 System Introduction..........................................................................................5
APsystems Three-phase Microinverter YC1000-3............................................................................... 7
APsystems Microinverter System Installation.................................................................................... 8
Additional Installation components from APsystems..........................................................................................8
Required Parts and Tools from you...................................................................................................................... 8
Installation Procedures......................................................................................................................................... 9
Step 1 - Lay the AC bus according to the arrangement of APsystems Microinverter.................................. 9
Step 2 - Attaching the APsystems Microinverters to the Racking................................................................ 9
Step 3 - Attaching the antenna to the Microinverter, and keep the antenna vertical to the earth......... 10
Step 4 - Connecting the APsystems Microinverter AC Cables to the AC bus cable................................... 10
Step 5 - Connecting APsystems Microinverters to the PV Module............................................................ 11
Step 6 - Install a protective end cap at the end of AC bus cable................................................................11
Step 7 - Installing the AC Branch Circuit Junction Box................................................................................12
Step 8 - Completing the APsystems Installation Map................................................................................ 12
Step 9 - Place a Warning Notice................................................................................................................. 13
APsystems microinverter system operating instructions................................................................. 14
Troubleshooting................................................................................................................................. 15
Status Indications and Error Reporting...............................................................................................................15
Troubleshooting a non-operating APsystems Microinverter............................................................................. 16
Replace a microinverter.....................................................................................................................17
Technical Data.................................................................................................................................... 18
APsystems YC1000-3 Microinverter Datasheet.................................................................................................. 19
Wiring Diagram.................................................................................................................................. 19
Sample Wiring Diagram - Three Phase............................................................................................................... 20

APsystems YC1000-3 Installation/User Manual
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Important Safety 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.
SAVE THESE INSTRUCTIONS! This manual contains important instructions
for models YC1000-3 that must be followed during Installation and maintenance
of the Photovoltaic Grid-connected Inverter.
Specifications subject to change without notice - please ensure you are using
the most recent update found at www.APsystems.com
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.
NOTE: This indicates information that is important for optimized
Microinverter operation. Follow these instructions closely.
NOTE: Pollution degree 1：no pollution or only dry, non-conductive
pollution occurs. The pollution has no influence.
Radio interference statement
CE EMC Compliance：The equipment can comply with CE EMC, 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 not following
the instructions 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 radio / TV technical for help.
Changes or modifications not expressly approved by the party responsible
for compliance may void the user’s authority to operate the equipment.
WARNING
SYMBOL
NOTE
SYMBOL

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Important Safety Instructions
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 read all
instructions and cautionary markings in the technical documents and on
the APsystems Microinverter system and the solar-array.
Be aware that the body of the APsystems Microinverter is the heat sink
and can reach a temperature of 80°C. To reduce risk of burns, do not touch
the body of the Microinverter.
Do NOT attempt to repair the APsystems Microinverter. If it fails, contact
APsystems Customer Support (61 (0)2 8034 6587) to obtain an RMA number
and start the replacement process. Damaging or opening the APsystems
Microinverter will void the warranty.
Do NOT expose the connection to directed, pressurized liquid (water jets, 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.
Use the terminator to seal the conductor end of the Engage Cable; no other
method is allowed.

APsystems YC1000-3 Installation/User Manual
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Important Safety Instructions
Symbols replace words on the equipment, on a display
Dangerous electrical voltage
This device is directly connected to public grid, thus all work to the
inverter shall only be carried out by qualified personnel.
NOTICE, danger!
This device directly connected with electricity generators and public
grid.
Danger of hot surface
The components inside the inverter will release a log of heat during
operation, DO NOT touch aluminum housing during operating.
An error has occurred
Please go to Chapter 10 “Trouble Shooting” to remedy the error.
This device SHALL NOT be disposed of in residential waste
Please go to Chapter 9 “Recycling and Disposal” for proper
treatments.
CE mark is attached to the solar inverter to verify that the unit
follows the provisions of the European Low Voltage and EMC
Directives.
Etiquette Onduleur.
Qualified
personnel
Person adequately advised or supervised by an electrically skilled
person to enable him or her to perceive risks and to avoid hazards
which electricity can create. For the purpose of the safety information
of this manual, a "qualified person" is someone who is familiar with
requirements for safety, refrigeration system and EMC and is
authorized to energize, ground, and tag equipment, systems, and
circuits in accordance with established safety procedures. The
inverter and endues system may only be commissioned and operated
by qualified personnel.

APsystems YC1000-3 Installation/User Manual
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APsystems YC1000-3 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
monitoring and analysis system
Bra nch J -box
Ground
Ne utra l
Me ter
AC Di stri buti on Pane l
PV
Modul e
PV
Modul e
M ic r oi nv e r te r
EC U
Figure 1
NOTE: Exernal isolation switch off electromechanical relay embedded.

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APsystems YC1000-3 System Introduction
This integrated system improves safety; maximizes solar energy harvest;
increases system reliability, and simplifies solar system design, installation,
maintenance, and management.
APsystems Microinverters maximize PV energy
production
The APsystems microinverter ensures top performance from the array
by maximizing the performance of the module within the array when
PV modules in the array are affected by shading.
More reliable than centralized or string inverters
The distributed 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 temperatures of up
to +65°C (+149° F). The inverter housing is designed for outdoor
installation and complies with the IP67 environmental enclosure
rating.
Simple to install
You can install individual PV modules in any combination of module
quantity, orientation, different type and power rate (check on-line module
compatibility or contact APsystems).
Smart system performance monitoring and analysis
The APsystems Energy Communication Unit (ECU) is installed
by simply plugging it into any wall outlet and providing it with an
Ethernet or Wi-Fi connection to a broadband router. After installing
and setting the ECU (see ECU manual), 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. Reference the ECU Manual for
installation and operation instructions.

APsystems YC1000-3 Installation/User Manual
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APsystems Three-phase Microinverter YC1000-3
The APsystems YC1000-3 Microinverters connect with the Three-phase
grid, and operate with most 60, 72, 84 and 96 cell PV modules. For more
information, please see the Technical Data page (p.18) of this manual,
or sign in APsystems website to check online with our tool Edecider :
www.emea/APsystems.com
Model
Number
AC grid
PV Module
Max. #
Per branch
Module Connector
YC1000-3
230V/400V
60,72,84,
96 Cell
12 per 20A×3 Breaker
for 2.5mm2AC BUS
MC-4 Compatible or
Customize

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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.
Special Statement! An AC GFCI device should not be used to protect the
dedicated circuit to the APsystems microinverter even though it is an outside
circuit. None of the small GFCI devices (5mA-30 mA) are designed for back
feeding and will be damaged if back feed. In a similar manner, AC AFCIs
have not been evaluated for back feeding and may be damaged if back feed
with the output of a PV inverter.
WARNING: Perform all electrical installations in accordance
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 in 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.
WARNING: Electrical Installation & Maintenance shall be conducted
by licensed electrician and shall comply with national wiring rules.
NOTE: Strongly recommend to install Surge protection Devices
in the dedicated meter box.
Additional Installation components from APsystems
Sealing caps (sold separately)
Protective end cap (sold separately)
Required Parts and Tools from you
In addition to your PV array and its associated hardware, you will need
the following items:
An AC connection junction box
Mounting hardware suitable for module racking
Sockets and wrenches for mounting hardware
Continuous grounding conductor and grounding washers
A Phillips screwdriver
A torque wrench

APsystems YC1000-3 Installation/User Manual
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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 solar array,
they will not turn themselves on until they can read power from the grid.
WARNING: Do NOT connect APsystems Microinverters to the
utility grid or energize the AC circuit until you have completed all
of the installation procedures as described in the following sections.
Step 1 - Lay the AC bus according to the arrangement of
APsystems Microinverter
Step 2 - Attaching the APsystems Microinverters to the
Racking
Figure 2
a. Mark the location of the Microinverter on the rack, with respect
to 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.
WARNING: Prior to installing any of the microinverters, verify
that the utility voltage at the point of common connection matches
the voltage rating on microinverter label.
WARNING: Do not place the inverters (including DC and AC connectors)
Where exposed to the sun, rain or snow, even gap between modules.
Allow a minimum of 3/4’’(1.5cm.) between the roof and the bottom of the
Microinverter to allow proper air flow.

APsystems YC1000-3 Installation/User Manual
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Installation Procedures
Step 3 - Attaching the antenna to the Microinverter, and
keep the antenna vertical to the earth
Figure 3
Step 4 - Connecting the APsystems Microinverter AC
Cables to the AC bus cable
Figure 4
Cover all unused T connectors with sealing caps to protect the T connectors.
Figure 5
AC connector interface as follows, from left to right PE, N, L3, L2, L1.
Figure 6
PE N L3 L2 L1

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Installation Procedures
Step 5 - Connecting APsystems Microinverters to the PV Module
Place the PV modules into position on the racking and connect the DC input
cables to the microinverters based on optimum layout configuration (up to
four PV modules per microinverter).
CH4 CH3 CH2 CH1
Figure 7
NOTE: The status LED for on each microinverter will blink green
three (3) times to indicate normal operation once DC power is applied.
It is important to understand that this “start up” sequence occurs once
the first module is connected to the microinvert and is successfully
generating DC power. The “start up” sequence does NOT reoccur as
additional modules are connected to the same microinverter.
Step 6 - Install a protective end cap at the end of AC bus cable
a. Wirestripping
b. Insert the cable end into the gasket clamp.
c. Insert five wires into five cable clamps
d. Rotate the nut with 2.5N·m until
the latching mechanism meets the base.
Figure 8
Nut
Gaske
Clamp
Seal
Body

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Installation Procedures
Step 7 - Installing the AC Branch Circuit Junction Box
Figure 8
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 bus cable into the junction
box using an appropriate gland or strain relief fitting.
c. Wire the conductors of the AC bus: L1- BROWN; L2 - BLACK; L3 - GRAY; N -
LIGHT BLUE; PE –YELLOW GREEN.
d. Connect the AC branch circuit junction box to the point of utility
Interconnection.
WARNING: Wiring colour code can be different according local regulation,
check all the wires of the installation before connecting to the AC bus to be
sure they match.Wrong cabling can damage irreparably the microinverters,
such an issue is not covered by the warranty.
WARNING: Double check to make sure all of the AC and DC wiring
has been correctly installed. Ensure that none of the AC and/or DC
wires are pinched or damaged. Make sure that all of the junction
boxes are properly closed.
Step 8 - Completing the APsystems Installation Map
Fill in the APsystems Warranty Cards, which provide system information
and the installation map. Feel free to provide your own layout if a larger
or more intricate installation map is required. The layout map provided
is designed to accommodate labels in vertical or horizontal orientation to
meet all the field PV connections.
a. Each APsystems microinverter has removable serial number
labels. Peel labels off, and affix one to the respective location
on the APsystems installation map, and affix another to the
PV module frame which is easy to see.The warranty cards can
be obtained from the appendix of this manual or APsystems
website: www.APsystems.com

APsystems YC1000-3 Installation/User Manual
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Installation Procedures
b. Fill out the warranty cards and email to APsystems at
[e-mail].
c. Register the system using your Installer Account on the
APsystems EMA. You can then use the EMA website to view
detailed performance of the PV system.
Figure 10
NOTE: 1. Step 1～8 can change sequence for convenience of installation.
2. Warranty card is located in Appendix last page of this manual.
3. You can use Scanning Gun or mobile phone with APsystems
ArrayApp to scan the serial numbers on the map when set ECU
(see ECU manual).
4.Using apsystems' mobile app ArrayApp can make the installation
and registion muchmore simple.
Step 9 - Place a Warning Notice
A warning notice shall be placed in such a position that any person gaining
access to live parts will be warned in advance of the need to isolate those
live parts from all points of supply. Special attention should be paid that the
power supply, measuring circuits (sense lines) and other parts may not be
isolated from the network when the switch of the interface protection is open.
As a minimum, warning labels shall be placed:
On the switchboard (DNO panel and consumer unit) that has the
micro-generator connected to it;
On all switchboards in between the consumer unit and the micro-
generator itself;
On, or in the micro-generator itself;
At all points of isolation for the micro-generator.
Figure 11

APsystems YC1000-3 Installation/User Manual
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APsystems microinverter system operating instructions
To operate the APsystems microinverter PV system:
1. Turn ON the AC circuit breaker on 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 safety delay period.
3. The APsystems Microinverters will start to send performance data
over wireless to the ECU. 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. You can verify proper
operation of the APsystems Microinverters via the ECU. See the
ECU Installation and Operation Manual for more information.

APsystems YC1000-3 Installation/User Manual
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Troubleshooting
Qualified personnel can use the following troubleshooting steps if the
PV system does not operate correctly:
Status Indications and Error Reporting
Start up LED
Three (3) short green blinks, when DC power is first applied to the
microinverter, indicates a successful microinverter start up. It is
important to understand that this “start up” sequence occurs once
the first module is connected to the microinvert and is successfully
generating DC power. The“start up” sequence does NOT reoccur as
additional modules are connected to the same microinverter.
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 over 60 minutes
Flashing Red - Not producing power
Steady Red - Electrode assembly ground fault protection
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. An opaque covering may be used to cover the module
prior to disconnecting the module.
WARNING: Always disconnect AC power before disconnecting
the PV module wires from the APsystems microinverter.
WARNING: The APsystems microinverter is powered by PV module
DC power. Make sure you disconnect and reconnect the DC connections
to watch for the three short LED flashes indicating start up.

APsystems YC1000-3 Installation/User Manual
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Troubleshooting
Troubleshooting a non-operating APsystems Microinverter
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 LED flashes.
3. Check the AC branch circuit interconnection between all the
microinverters. Verify each inverter is energized by the utility grid
as described in the previous step.
4. Make sure that any AC breaker 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 is within the allowable range shown
in the Technical Data of this manual.
7. If the problem persists, please call APsystems Technical Support.
WARNING: Do not attempt to repair the APsystems microinverter.
If troubleshooting methods fail, please call APsystems Customer Support.

APsystems YC1000-3 Installation/User Manual
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Replace a microinverter
Qualified personnel can use the following troubleshooting steps if the PV
system does not operate correctly:
Follow the procedure to replace a failed
APsystems Microinverter.
A. Remove the APsystems microinverter from the PV Module, in the
following order:
1. Disconnect the AC by turning off the branch circuit breaker.
2. Cover the module with an opaque cover.
3. Disconnect the first AC connector in the branch circuit.
4. Disconnect the PV module DC wire connectors from the
microinverter.
5. Remove the Microinverter from the PV array racking.
B. Remove the opaque cover, install a replacement Microinverter to
the rack. Remember to observe the flashing LED light as soon as
the new Microinverter is plugged into the DC cables.
C. Connect the AC cable of the replacement Microinverter.
D. Close the branch circuit breaker, and verify operation of the replacement
Microinverter.

APsystems YC1000-3 Installation/User Manual
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Technical Data
WARNING: Be sure to verify the voltage and current specifications
of your PV module match with those of the Microinverter. Please refer to the
datasheet or usermanual which can be download from APsystems website
www.APsystems.com.
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.

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APsystems YC1000-3 Microinverter Datasheet
Region
France
Switzerland
Netherlands
Portugal
Model
YC1000-3-EU
Input Data (DC)
MPPT Voltage Range
16V-55V
Operation Voltage Range
16V-55V
Maximum Input Voltage
60V
Startup Voltage
22V
Maximum Input Current
14.8A x 4
Output Data (AC)
3-Phase Grid Type
230V/400V
Maximum Continuous Output Power
900W
Peak Output Power
1000W
Nominal Output Current
1.30A×3
Nominal Output Voltage
230V×3
Default Output Voltage Range
184V-253V*
195.5V-264.5V*
Extended Output Voltage Range
149V-278V
Nominal Output Frequency
50Hz
Default Output Frequency Range
48Hz-51Hz*
47.5Hz-52Hz*
Extended Output Frequency Range
45.1Hz-54.9Hz
Power Factor
>0.99
Total Harmonic Distortion
<3%
Efficiency
Peak Efficiency
95%
CEC Weighted Efficiency
94.5%
Nominal MPPT Efficiency
99.9%
Night Power Consumption
300mW
Mechanical Data
Operating Ambient Temperature Range
-40 oC to +65 oC
Storage Temperature Range
-40 oC to +85 oC
Dimensions (W x H x D)
259mm x 242mm x 36mm
AC BUS Maximum Current
20A
Weight
3.8kg
Enclosure Rating
IP67
Cooling
Natural Convection - No Fans
Maximum Altitude rating
All Data At This Technical Specifications Has Been Tested Under <2000m
Features
Communication
Zigbee
Safety and EMC Compliance
EN 62109-1; EN 62109-2; EN61000-6-1;EN61000-6-2; EN61000-6-3; EN61000-6-4;
Grid Connection Compliance
UTE C 15-712-1
DIN VDE 0126-1-1
A1/VFR-2014
ERDF-NOI-RES_13E
SEI REF 04
DIN VDE 0126-1-1
EN50438
Transformer Design
High Frequency Transformers, Galvanically Isolated
© All Rights Reserved
*Programmable through ECU in field to meet customer need.
2016/12/22 Rev1.3