Hoymiles HY3 Series User manual

USER MANUAL
HY3 Series Hybrid Inverter
EN
Version: MANUAL-HY3-EN-V1.00
www.hoymiles.com

Table of Content
User Manual MANUAL-HY3-EN-V1.00 1
Table of Content
Table of Content .................................................................................................................................1
1. About This Manual.......................................................................................................................2
1.1 Products Range..................................................................................................................2
1.2 Target Group.....................................................................................................................2
1.3 Symbols Used....................................................................................................................2
2. Safety..........................................................................................................................................3
2.1 Intended Use .....................................................................................................................3
2.2 Important Safety Instructions ...............................................................................................3
3. Scope of Delivery .........................................................................................................................5
4. Product Description ......................................................................................................................6
4.1 View of the Product ............................................................................................................6
4.2 System Diagram ................................................................................................................7
4.3 Operating Mode Introduction .............................................................................................8
5. Mounting.....................................................................................................................................9
5.1 Selecting the Mounting Location..........................................................................................9
5.2 Mounting the Inverter .......................................................................................................11
6. Electrical Connection..................................................................................................................12
6.1 Overview of Connection Area........................................................................................... 12
6.2Wiring Diagram............................................................................................................... 13
6.3 PV Connection................................................................................................................. 15
6.4 Grid Connection.............................................................................................................. 16
6.5 EPS Connection ...............................................................................................................17
6.6 Battery Connection........................................................................................................... 18
6.7 Smart Meter Connection................................................................................................... 20
6.8 WiFi Module Connection ..................................................................................................21
6.9 DRM Connection .............................................................................................................21
7. Operating the Inverter................................................................................................................22
7.1 Explanation of LED Indicators ...........................................................................................22
7.2 Commission ....................................................................................................................23
7.3 Decommission.................................................................................................................24
7.4 WiFi Configuration........................................................................................................... 25
7.5 APP Monitoring................................................................................................................26
8. Troubleshooting .........................................................................................................................27
9. Technical Datasheet ...................................................................................................................28
Warranty Card .................................................................................................................................30

1. About This Manual
2 MANUAL-HY3-EN-V1.00 User Manual
1.About This Manual
1.1 Products Range
Hoymiles HY3 Series Hybrid Inverters: HY3-5000, HY3-6000, HY3-8000, HY3-10000.
1.2 Target Group
This document is intended for qualified electricians. The actions described here must be performed by
qualified electricians in compliance with standards, wiring rules or requirements of local grid authorities or
bodies.
1.3 Symbols Used
The following types of safety precautions and general information symbols are used in this manual. These
important instructions must be followed during installation, operation and maintenance of the inverter.
Symbol
Explanation
Indicates a hazard with a high level of risk that will result in death or
serious injury.
Indicates a hazard with a medium level of risk that can result in
death or serious injury.
Indicates a hazard with a low level of risk that can result in minor or
moderate injury.
Indicates a situation which, if not avoided, can results in property
damage.
! DANGER
! WARNING
! CAUTION
NOTICE

2. Safety
User Manual MANUAL-HY3-EN-V1.00 3
2.Safety
2.1 Intended Use
The HY3 Series are three phase solar hybrid inverters. The hybrid inverter works with lithium batteries, PV
panels and smart meter as a solar-storage system, for increased self-consumption, backup power supply,
peak shaving, and etc.
To prevent personal injury and property damage and to ensure long-term operation of the product, please
read and follow all the instructions and cautions on the inverter and this user manual during installation,
operation or maintenance at all times.
2.2 Important Safety Instructions
Danger to life from electric shock.
Before performing any work on the inverter, disconnect all DC and AC power from inverter
and wait for at least 5 minutes.
Do not touch DC conductors or any non-isolated cable ends.
If an error occurs, contact your local distributor or qualified electricians.
Make sure the inverter is not touchable from children.
Risk of burns from hot surfaces.
The surface of the inverter might exceed 60℃, touching the surface may result in burns.
Do not touch hot surfaces before it cools down.
Only authorized service personnel are allowed to install the inverter or perform servicing and
maintenance。
All powers, both AC and DC, should be disconnected from inverter before attempting any
maintenance or cleaning or working on any circuits connected to inverter.
! DANGER
! WARNING
! WARNING

2. Safety
4 MANUAL-HY3-EN-V1.00 User Manual
The Inverter has a transformerless design on PV side. Either positive or negative terminals of
PV panels should not be grounded.
The frames of PV panels should be grounded for safety reasons.
Do not open the inverter cover or change any components without authorization, otherwise
the warranty commitment for the inverter will be invalid.
Appropriate methods must be adopted to protect inverter from electrostatic discharge; any
damage caused by ESD is not warranted by the manufacturer.
! CAUTION
NOTICE

3. Scope of Delivery
User Manual MANUAL-HY3-EN-V1.00 5
3.Scope of Delivery
Inverter * 1
Bracket * 1
E xpansion Scr ew * 6
Meter * 1
PV Conn ectors
Positive * 3, Negative * 3
Battery Conne ctors
Positive * 2, Negative * 2
Ground Nu t * 2
Set Sc rew * 2
U ser
Manu al
AC Conne ctor * 2 AC Pin * 10
WiFi Module * 1
Commu nication Box * 1
User Manual * 1
Warranty Card * 1
A B
C D
G HE F
J KI

4. Product Description
6 MANUAL-HY3-EN-V1.00 User Manual
4.Product Description
4.1 View of the Product
View of the HY3 Series Hybrid Inverter
Symbols on the Label
Symbol
Explanation
CE Mark
Refer to User Manual
Caution, Risk of Danger
Caution, Risk of Electric Shock
Caution, Hot Surface

4. Product Description
User Manual MANUAL-HY3-EN-V1.00 7
4.2 System Diagram
The HY3 Series hybrid inverter can be used with battery and solar array to form a solar-storage system. It
can improve the self-consumption of solar energy, and can also perform as a backup power supply.
System Diagram of HY3 Series
This diagram is a simplified system sketch, only for explanation of system modes, which is NOT for
wiring or connection.
Normally, the EPS port needs an external switchover device to get power from grid when grid is
available. Please refer to the Wiring Diagram in the Chapter 6.2.
NOTICE

4. Product Description
8 MANUAL-HY3-EN-V1.00 User Manual
4.3 Operating Mode Introduction
Several Common Operation Modes
Mode 1
In the daytime when there is sufficient
sunlight, the solar energy supports the
loads first; excess energy is stored in
battery; rest energy is fed into grid (or
limited if required).
Mode 2
In the night, or when there is not
sufficient solar energy, the battery
supplys the loads together with grid and
solar if available.
Mode 3
When the grid is not available, the
inverter can supply the loads by energy
from solar and battery.
Mode 4
The inverter can also charge the battery
with energy from grid.
For instance, in areas with Time of Use
tariff, users can choose to charge the
battery in low tariff periods, and use
stored energy in high tariff periods.

5. Mounting
User Manual MANUAL-HY3-EN-V1.00 9
5.Mounting
5.1 Selecting the Mounting Location
Check to make sure the installation location does not fall into any of the following conditions. If
any do, then a risk assessment will be required.
Check List
Unsafe due to assessment of occupational health safety risks.
Exposed to direct sunlight, rain, or snow.
The ambient temperature is outside the range of tolerable ambient temperature (-20°C to +60°C, -4°F
to +140°F).
Higher than the altitude of 2,000m above sea level. Above 2000m the inverter output will be de-rated.
Close to flammable materials or areas where flammable materials are stored.
Prone to be damaged by sea water.
Close to corrosive gas or liquid (for example, locations where chemicals are processed or stored).
Little or no air flow.
Mounted on a surface without suitable fire/heat rating.
Mounted on a wall without suitable load holding capacity.
High humidity.
Sites considered unsafe because of local regulations.
Confined space without adequate airflow.
Area subject to sand or dust storms.
Exposed to steam, vapor, or water.
Near antenna and/or data cables.
NOTICE

5. Mounting
10 MANUAL-HY3-EN-V1.00 User Manual
Requirements of Mounting
Enough space around the
inverter is suggested, as left
picture shows.
≥200mm ≥200mm
≥300mm
≥500mm
≥300mm
The inverter must be mounted in
upright position with a tilt angle
no more than 15 degree.
Max 15°

5. Mounting
User Manual MANUAL-HY3-EN-V1.00 11
5.2 Mounting the Inverter
Procedure
Step 1
Please use the mounting
bracket as a template to drill 6
holes on the wall (10mm in
diameter, and 80mm in depth).
Use expansion bolts in
accessory box, to fix the
mounting bracket onto the wall
tightly.
Step 2
Lift the inverter with the handles
on two sides and the bottom.
Hang the inverter onto the
mounting bracket.
Step 3
One can lock the inverter on its
bracket, for anti-theft purpose.

6. Electrical Connection
12 MANUAL-HY3-EN-V1.00 User Manual
6.Electrical Connection
6.1 Overview of Connection Area
A C D E F G HB
BMS2
BMS1CAN1CAN2
METER DRM
ON
OFF
PV1PV2
A1+
A1-
B1+
B1-
B2+
B2-
BAT1+
BAT1-
BAT2+
BAT2-
WIFI
GRID EPS
Position
Designation
A
Solar Switch
B
Additional Grounding Point
C
Solar Input Ports
D
Battery Input Ports
E
WiFi Module Port
F
Communication Port (Include DRM, smart meter port, 2 BMS ports, 2 CAN ports)
G
Grid Connector
H
EPS Connector

6. Electrical Connection
User Manual MANUAL-HY3-EN-V1.00 13
6.2 Wiring Diagram
A. Diagram for Australia and New Zealand
For Australian safety countries, the neutral line of EPS port must NOT be isolated or switched.
Grid
A
N
B
C
A B C N PE A B C N PE
Smart
Meter
PE
Battery
Solar Array
RCD
Common
Loads
EPS
Loads
N-Bar
E-Bar
Main
Switch
Changeover
Switch
RCD
A B C NPE A B C NPE
Grid
Port EPS Port
Don’t connect
for Australian
& New Zealand
grid system
HY3 Series
Hybrid Inverter
NOTICE

6. Electrical Connection
14 MANUAL-HY3-EN-V1.00 User Manual
B. Diagram for Other Countries
For other countries, the neutral line of EPS port can be isolated or switched.
Grid
A
N
B
C
A B C N PE A B C N PE
Smart
Meter
PE
Battery
Solar Array
Common
Loads EPS Loads
E-Bar
Main
Switch
DPDT
A B C NPE A B C NPE
Grid
Port EPS Port
HY3 Series
Hybrid Inverter
RCDRCD
NOTICE

6. Electrical Connection
User Manual MANUAL-HY3-EN-V1.00 15
6.3 PV Connection
Before connecting, please make sure:
The voltage, current and power ratings of the panels to be connected are within the allowable range of
the inverter, ensure polarity is correct, and please refer to the Technical Data in chapter 9 for voltage
and current limits.
Since the inverter is transformerless, please do not ground either output of the PV panels. Ground the
panel frames.
The HY3 Series inverters are designed with 2 MPPT trackers and the HY3-8000HV/10000HV have 3 PV
inputs. Only one solar string is permitted for one input port. If the inputs of the PV panels are paralleled;
please consult with your local distributor for technical support.
If the inverter is equipped with a PV switch, please make sure it is in the “off” position. Otherwise please
use an external PV switch to cut off the PV connection during wiring and when necessary.
When exposed to light, PV panels will generate DC voltage. One should turn off the PV switch
before connecting the wire, and be careful with the conductors.
Use the PV Connectors in the accessory box for PV connections.
Please make sure the connectors are correct, not the battery connectors, as they look similar.
Procedure
Step 1
Assemble the PV connectors from the
accessary box.
Make sure the polarity is correct.
The conduct core section: 2.5-4mm2.
Step 2
Connect the PV connectors to the
inverter. There should be a “click”
sound, if it is plugged in correctly.
NOTICE
! WARNING

6. Electrical Connection
16 MANUAL-HY3-EN-V1.00 User Manual
6.4 Grid Connection
Before connecting, make sure:
Use the Grid Connector from the accessory box.
The grid voltage and frequency is in the permissible range.
External AC breaker must be used for cutting off the inverter from grid when necessary.
The breaker model selection:
25A/400V AC Breaker for HY3-5000HV/6000HV
40A/400V AC Breaker for HY3-8000HV/10000HV
Procedure
Step 1
Assemble the grid connectors from the
accessary box.
Make sure the 3L/N/PE are correctly
assembled.
The conduct core section: 4-6mm2.
Step 2
Connect the grid connectors to the
inverter. There should be a “click”
sound, if it is plugged in correctly.
Step 3
Connect an additional grounding wire
to the ground point.

6. Electrical Connection
User Manual MANUAL-HY3-EN-V1.00 17
6.5 EPS Connection
If you want to use the energy storage system to power the house (as a standalone system or during Grid
failure), the EPS connector should be used and the EPS function should be enabled. Otherwise one can
leave the EPS port un-connected.
Before connecting, make sure:
Use the EPS Connector from the accessory box.
The grid voltage and frequency is in the permissible range.
External AC breaker must be used for cutting off the inverter from all the EPS loads when necessary.
The breaker model selection:
25A/400V AC Breaker for HY3-5000HV/6000HV
40A/400V AC Breaker for HY3-8000HV/10000HV
If there are discrepancies about wiring mode between local regulations/standards and this
manual, please contact us before installation and/or operation.
Procedure
Step 1
Assemble the EPS connectors from the
accessary box.
Make sure the 3L/N/PE are correctly
assembled.
The conduct core section: 4-6mm2.
Step 2
Connect the grid connectors to the
inverter. There should be a “click”
sound, if it is plugged in correctly.
NOTICE

6. Electrical Connection
18 MANUAL-HY3-EN-V1.00 User Manual
6.6 Battery Connection
Before connecting, make sure:
Use the Battery Connectors from the accessory box.
The battery is compatible with HY3 Series. Please contact local distributor or manufacturer for
approved battery list.
A DC breaker with OCP function is compulsory to be installed between inverter and battery. The battery
may have this switch integrated. If not, an external DC switch of proper ratings should be used.
Make sure the breaker mentioned above is in “off”position.
Use the Battery Connectors in the accessory box for battery connections.
Please make sure the connectors are correct, not the PV connectors, as they look similar.
Procedure
Step 1
Assemble battery connectors from the
accessary box.
Make sure the polarity is correct.
The conduct core section: 6mm2.
Step 2
Connect the battery connectors to the
inverter. There should be a “click”
sound, if it is plugged in correctly.
As the battery current is up to 50A, two
pairs of battery connectors with cables
are needed.
NOTICE