Riello RS 3.6 HYBRID User manual

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INTRODUCTION
Thank you so much for choosing RS 3.6 –6.0 HYBRID, the latest generation of hybrid PV string inverters (hereinafter referred to as
“inverter”) designed and developed by Riello Solartech.
Our company is specialised in the development and production of photovoltaic inverters. The solar inverters in this series are high-
quality products, carefully designed and constructed with the aim of ensuring high performance.
This user manual introduces the inverter in terms of its installation, electrical connections, operation, commissioning, maintenance
and troubleshooting.
For information regarding use and to obtain maximum performance from your equipment, this manual should be
CONSULTED BEFORE OPERATION.
NOTE: some images contained in this document are for information purposes only and may not faithfully reproduce the parts of the
product represented.
Application Model
Hybrid PV Inverter
•RS 3.6 HYBRID PV single phase inverter with two MPPT inputs and battery integration,
3.6kW nominal power
•RS 6.0 HYBRID PV single phase inverter with two MPPT inputs and battery integration,
6.0kW nominal power
Lithium Battery
•RS BATLIO 5120 Stackable battery modules, 5.12kWh
Intended Recipients
This user manual is intended for photovoltaic (PV) inverter operating personnel and qualified electrical technicians.
Note:
this user manual is subject to change without prior notice. The latest version of the user manual and additional information on the
product are available on http://www.riello-solartech.com, and/or by consulting your dealer.
Symbol Conventions
The safety symbols used in this manual, which highlight potential safety risks and important safety information, are listed below:
Symbol
Description
DANGER
Indicates an imminently hazardous situation which, if not correctly followed, will result in serious injury or
death.
WARNING
Indicates apotentially hazardous situation which, if not correctly followed, could result in serious injury or
death.
CAUTION
Indicates apotentially hazardous situation which, if not correctly followed, could result in moderate or minor
injury.
NOTICE
Indicates apotentially hazardous situation which, if not correctly followed, could result in equipment failure
or property damage.
NOTE
Calls attention to important information, best practices and tips:
supplements the safety instructions to optimise your use of the PV inverter and reduce wastage of
resources.

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SAFETY PRECAUTIONS
Personnel Safety
•The PV inverter must be installed, electrically connected, operated and maintained by a specially trained technician.
•The qualified technician must be familiar with the safety regulations concerning the electrical system, the working process
of the PV power generation system and the standards of the local power grid.
•The technician must read through this User Manual carefully and master it before any operation.
•Ensure children are kept away from the inverter.
PV Inverter Protection
NOTICE
Upon receiving the PV inverter and/or the batteries, please check whether it was damaged during transport. If it
was, please contact your dealer immediately
•Do not tamper with any warning signs on the inverter’s enclosure, because these signs contain important information on
safe operation.
•Do not remove or damage the nameplate on the inverter’s enclosure, because it contains important product information.
•When not in use, the inverter must be disconnected and stored in a cool, dry and well-ventilated place.
Battery Protection
NOTICE
Upon receiving the battery, please check whether it wasdamaged during transport.If it was, please contact your
dealer immediately
•The battery module must be protected against short circuits during transportation and installation.
•Do not disassemble/break the Battery. The electrolytes present can be toxic and cause serious harm to people. Damage
caused by improper installation/operation is NOT covered under the product warranty
•All batteries connected in parallel must be of the same model and have the same firmware version (also important in a
possible replacement of the batteries or modification of the storage system in the future).
•When not in use, the battery modules must be disconnected and stored in a cool, dry and well-ventilated place (for more
information, see the Storage chapter).
Installation Safety
NOTICE
Please read the User Manual carefully before installing the PV inverter; warranty or liability will be voided if
damage is caused by installation faults.
•Ensure that there are no electrical connections around the PV inverter ports prior to installation.
•The Inverter and Battery modules must be installed in well-ventilated places. Do not install in airtight or poorly ventilated
cabinets or places. This could be extremely dangerous for the performance and life of the system (for more information, see
the Installation chapter)
•To reduce the risk of fire, do not cover or block the cooling vents. Keep the system out of direct sunlight. DO NOT approach
explosive or flammable materials. DO NOT approach ovens, flames or other heat sources in order to avoid possible fires or
explosions.
•The DC switch and Battery switch are used as disconnect devices, therefore they must be easily accessible.
•To prevent fire and electric shock, ensure that existing wiring is in good condition, of good quality, and that wires are not
undersized.
•Use only accessories recommended by the manufacturer. Unsuitable / unrecommended accessories can cause fire, electric
shock or personal injury.
Electrical Connections
DANGER
Before installing the inverter, check all electrical ports to ensure that there are no damages or short-circuits.
Otherwise, personal injury and/or fire will occur.
•Only connect PV strings to the PV input connectors of the inverter; do not connect any other DC power sources to the input
connectors.
•Before connecting PV modules, ensure that their voltage is within the safe range; when exposed to any sunlight, PVmodules
can generate high voltage.
•Ensure that the output voltage of the proposed PV array is lower than the maximum rated input voltage of the inverter;
otherwise, the inverter may be damaged and the warranty cancelled.
•Static electricity may damage electronic components. Appropriate method must be adopted to prevent such damage to the
inverter.
•All electrical connections must meet the electrical standards of the relevant country or region.
•Cables used for electrical connections must be properly secured, well-insulated and made to the appropriate specification.
Operation and Commissioning
DANGER
While the inverter operates, high voltage can lead to an electrical shock hazard and even cause personal injury.
Therefore, operate the PV inverter strictly according to the safety precautions in this User Manual.
•Unless permission has been obtained from the power company of the country/region, the grid-tied PV inverter cannot start
generating power.
•Follow the procedures for commissioning described in the User Manual when commissioning the PV inverter.
•When the PV inverter is operating, do not touch the surface of any other parts except for the DC switch; its constituent parts
will be extremely hot and can cause burns.
.
.

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•Do not unplug AC and/or DC terminals when the inverter is running.
Maintenance
DANGER
Power OFF all electrical terminals before performing inverter maintenance; strictly comply with the safety
precautions stated in this document when operating the inverter.
•Do not disassemble the equipment. Contains no user-serviceable parts. Attempting to repair the equipment yourself can
result in electric shock or fire and will void the manufacturer's warranty
•For personal safety, maintenance personnel must wear appropriate personal protective equipment (such as insulation
gloves and protective shoes) for inverter maintenance operations.
•Place temporary warning signs or erect fences to prevent unauthorised access to the maintenance site.
•To avoid electric shock, wait at least 5 minutes after powering off the inverter prior to any operation.
•Strictly follow the maintenance procedures specified in the User Manual.
•Check the relevant safety and performance of the inverter; rectify any faults which may compromise the safe operation of
the inverter before restarting it.
Battery Maintenance
DANGER
Battery maintenance must only be performed by qualified and competent technical personnel.
The manufacturer is not liable for damage to people or things caused by failure to comply with the instructions.
IMPORTANT: Replace the batteries with batteries or battery packs of the same type.
Some IMPORTANT rules to be CAREFULLY followed when carrying out battery maintenance:
•Remove watches, rings or other metal objects.
•Use tools with insulated handles.
•Wear rubber gloves and shoes.
•Do not place tools or metal parts on top of the batteries.
•Disconnect all energy sources before connecting and/or disconnecting the Battery terminals.
•Both positive and negative poles must be isolated from earth.
Additional Information
NOTICE
To avoid any other unforeseeable risk, contact Riello immediately if any safety issue emerges during operation.
DANGER
RISK OF VOLTAGE FEEDBACK
Before operating on this circuit
-Disconnect the accumulation system (ESS)
-Then check for the presence of Dangerous Voltage between all terminals, including the protective earth.

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PROTECTING THE ENVIRONMENT
This product does not contain hazardous materials such as CFCs, HCFCs or asbestos.
Product packaging is made from RECYCLABLE MATERIALS. The disposal of individual components must be performed in
accordance with current legislation in the country where the product is used. Refer to the following table for material identification:
DESCRIPTION
MATERIAL
Packaging box
Corrugated cardboard (PAP)
Protective bag
High-density polyethylene (HDPE)
Foam
Low-density polyethylene (LDPE)
To comply with the European Directive 2002/96/EC relating to electrical and electronic waste and its implementation
as a national law, electrical equipment that has reached the end of its useful life and flat batteries must be separated
from general waste and handed over to the appropriate authorized collection and recycling centres.
Any device that is no longer needed must therefore be returned to the distributor or disposed of at an authorized
collection and recycling center in your area. Ignoring this European Directive can have potentially negative effects
on the environment and your health!
LIMITED GUARANTEE
The equipment you have purchased has been constructed according to the most modern techniques and was rigorously tested before
leaving the factory.
During the guarantee period, the manufacturer shall repair or replace parts that prove defective, provided that such defects have not
been caused by incompetence or negligence of the buyer, fortuitous events or force majeure (lightning, fire, flood, etc.), incorrect or
inadequate installation other than as stated inthemanual, unsuitable transport or delivery, opening of the unit byunqualified personnel
or breaking of the closure seal, modification, testing or unauthorised repair, use or application beyond the limits defined by the manual,
or application beyond those defined by safety standards (VDE, UL, etc.).
It is the responsibility of the person applying for technical assistance from Customer Service to provide detailed information about the
detected failure or malfunction.
The repair and/or replacement of parts or the device shall be implemented at the discretion of the supplier.
Any repair under guarantee will be performed by the manufacturer or an authorised service centre. Equipment must arrive at the risk
and expense of the customer in its original packaging so as not to cause further damage.
If repairs must be performed directly at the customer’s premises, the customer shall be charged for expenses and hours of travel,
while the costs for labour and parts shall be borne by the manufacturer. This guarantee does not in any case cover the replacement
of equipment or compensation for any direct or indirect costs or claims for damage caused by device malfunction.
© No part of this manual may be reproduced without prior permission from the manufacturer.
For the purpose of improvement, the manufacturer reserves the right to change the product described at any time and without notice.

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CONTENTS
PRESENTATION _______________________________________________________________________- 6 -
Product presentation _______________________________________________________________________- 6 -
INSTALLATION _______________________________________________________________________- 9 -
Preliminary checks _________________________________________________________________________- 9 -
Electrical installation_______________________________________________________________________- 19 -
USE ______________________________________________________________________________ - 31 -
System operation _________________________________________________________________________- 31 -
User interface ____________________________________________________________________________- 33 -
Working mode____________________________________________________________________________- 36 -
Using the app_____________________________________________________________________________- 42 -
Maintenance _____________________________________________________________________________- 52 -
Troubleshooting __________________________________________________________________________- 53 -
Storage__________________________________________________________________________________- 57 -
Disposing of the product____________________________________________________________________- 58 -
APPENDIx _________________________________________________________________________ - 59 -
Technical specifications_____________________________________________________________________- 59 -
Inverter _________________________________________________________________________________- 59 -
Battery __________________________________________________________________________________- 61 -
System __________________________________________________________________________________- 61 -

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PRESENTATION
PRODUCT PRESENTATION
Our hybrid storage system (ESS - Energy Storage System) is designed to supply energy continuously to the loads connected to it
using, depending on the different power supply situations, photovoltaic energy, mains power and/or the energy stored in the dedicated
battery modules. In the absence of sunlight, high energy demand or blackouts, you can use the energy stored in this system to meet
your energy needs at no additional cost. Furthermore, this energy storage system helps you pursue the goal of energy self-
consumption and energy independence.
Below is a simple graphical representation of a typical energy storage system:
WARNING
The inverter is transformerless. Add an isolation transformer before grounding the positive/negative terminal
of the PV modules (such as a thin-film module) for operation.
WARNING
Do not connect PV modules in parallel to several PV inverters for operation.
Model Description
The number in the model’s name indicates the power class of the inverter, for example:
RS 6.0 HYBRID
Power class 6kW
Hybrid inverter application diagram

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Battery configuration and capacity
One or more batteries RS BATLIO 5120 can be stacked to expand the capacity. Each battery pack has its own intergated power control module, the
system supports a maximum of six battery packs in parallel, with the following capacity.
5.12kWh
10.24kWh
15.36kWh
20.48kWh
25.60kWh
30.72kWh
Hybrid System Appearance
The following image, for example purposes only, shows a typical hybrid system with 2 batteries and an inverter.
1 Inverter
2 Cable cover
3 Battery pack
4 Battery pack
5 Base support
1402mm
610mm
252mm

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Connections area of Inverter
Connections area of Battery Pack
Connections Area of Base support
1. DC Switch
2. Battery connections
3. PV Switch
4. PV connectors
5. Backup output connector
6. Ground connection
7. Grid input connector
8. Communication ports
9. Slot for Wi-Fi/Ethernet module
connection
1. Battery indicators
2. Battery connections side screw
3. ON/OFF Button
4. Battery connectors
5. Communication ports
6. DC Breaker
7. Grounding connection

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INSTALLATION
PRELIMINARY CHECKS
Checking the packaging contents
•Upon receiving the inverter and/or batteries, check that the packaging materials are intact.
•After unpacking, check that the deliverables are complete, intact and consistent with your order list.
•Examine the PV inverter, batteries and their fittings for any damage such as scraps and cracks.
Packing Assy of inverter
A
Inverter
B
Base support
C
Brackets for base support (2x)
D
Wall bracket for inverter
E
Cable cover
F
File package
G
PV terminal connector group (PV+/PV-)
H
Grid connector
I
Backup connector
J
Current measuring transformer
K
Communication cables’ cover
L
M6 Expansion screws (8x)
M
M4 Security screws (8x)
N
Wi-Fi Module
O
9-pin Terminal
P
4-pin Terminals (2x)
Q
BMS Communication cable
R
Removal tool for PV connectors
S
Removal tool for Grid/Backup connectors
T
Locating pins (4x)
U
Power cables for batteries (some inverters have them
incorporated)
V
Base feet regulation tools (bubble level and Allen key,
only for some versions)
NOTICE
If any of the damage mentioned above is found, contact the dealer immediately.

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Packing Assy of battery
A
Battery
B
Mounting brackets (2x)
C
Connection strap for grounding
D
M6 Expansion screws (2x)
E
M4 Security screws (6x)
F
Locating pins (4x)
G
Battery cables (BAT+/BAT-)
H
Link communication cable (BAT to BAT)
Packing Assy of RS Hybrid Side Mounting Kit (XES2RS01A, optional)
A
Base support
B
Top cover
C
Brackets for base support (2x)
D
Locating pins (4x)
E
M6 Expansion screws (2x)
F
Security screws M4 (6x) and M5 (4x)
G
Base feet regulation tools (bubble level and allen key,
only for some versions)
H
Battery cables (BAT+/BAT-)
I
Communication cable (LINK COM)
Packing Assy of RS Hybrid Wall Mounting Kit (XES2RS02A, optional)
A
Wall mounting bracket
B
M6 Expansion screws (6x)
C
Locating pins (4x)
D
Installation guide

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Moving the inverter
After checking the outer packaging, move the PV inverter to the designated installation position horizontally, as shown in the figure
below.
CAUTION
The inverter is relatively heavy! To prevent device damage and personal injury, arrange two people or a
lifting mechanism to move the inverter and handle with care.
CAUTION
Do not place the PV inverter with its wiring terminals in contact with the floor, because the power ports and
signal ports at the bottom of the device are not designed to bear the weight of the inverter.
When placing the inverter on the floor horizontally, place foam or paper under it to protect its enclosure.
Identifying the PV Inverter
Nameplate
After removing the PV inverter from its packaging box, identify it by reading its nameplate affixed to the side of the inverter. The
nameplate contains important product information: model, communication/technical specifications, and compliance symbols.
Risk of electric shock
The device contains high voltages, both alternating and direct current, and high leakage currents may be generated
during operation. To avoid the risk of electric shock during maintenance or installation, make sure that all DC and AC
connection terminals are disconnected. First connect the grounding wire to ground and disconnect it last during
maintenance. Check for the proper phases and neutral connection. If the unit is used without following the
specifications of the manufacturer, the protection provided by the equipment may be impaired.
Disconnect the inverter from the grid, the batteries and from the photovoltaic generator before cleaning the
photovoltaic modules: an unexpected capacitive current from the surface of the modules may surprise operators,
causing them to fall off the roof.
Handling the photovoltaic inverter
The photovoltaic inverter must only be handled by qualified service personnel. When the photovoltaic generator is
exposed to sufficiently intense light, it generates DC voltage, and when connected to the device, it charges the bulk
capacitor. This also applies to batteries if present. After having disconnected the photovoltaic inverter from the grid,
batteries and the photovoltaic generator, an electric charge may remain in the bulk capacitor. Please wait at least 5
minutes after disconnecting the device from the energy sources before handling it.
Refer to the user manual
To avoid damage and/or injuries, always refer to the user manual before operating the inverter. This also ensures
high levels of security and high efficiency of the inverter. If any prescriptions are ignored, this can result in injuries
and/or equipment damage, not covered by the warranty.
Hot surfaces
Although it has been designed in accordance with international safety standards, the photovoltaic inverter may
become hot during operation.
CE
The product complies with the European CE Certification
Product disposal
The PV inverter contains hazardous materials for the environment. Do not dispose the inverter as household waste,
always refer to local standards for the disposal of the inverter.

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Installation Requirements
Basic Requirements
•The inverter and batteries are IP66 compliant and can be installed both indoors and outdoors.
•The installation site must be inaccessible to unauthorized personnel due to the high heat sink temperature.
•Do not install the PV inverter in areas containing highly flammable materials or gases.
•The carrier where the inverter is mounted must be fire-proof. Do not mount the inverter on flammable building materials.
•To ensure optimum operation and long operation life, the ambient temperature must be below 50° C.
•The PV inverter must be mounted in a well-ventilated environment to ensure good heat dissipation.
•To ensure long operation life, the storage of the inverter must not be exposed to direct sunlight, rain, or snow. It is
recommended that the inverter be mounted in a sheltered place.
•Do not install the inverter in a rest area since it will cause noise during operation.
•The installation height should be reasonable and suitable to easily operate and view the display.
•Product label and warning symbols shall be clear to read after installation.
Installation Environment Requirements
NOTICE
An improper installation of the system may cause malfunctioning or performance loss.
•It is recommended that the inverter be installed at eye level to facilitate operation and maintenance.
•Reserve enough clearance around the inverter to ensure sufficient space for installation and heat dissipation, as shown in
the picture below.

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Installation
Base support installation
Step 1 Fix the two brackets for the support base on the rear side of the base with 6x M4 security screws supplied (tighten with a
torque of 1.2Nm). Install the 4 alignment pins provided on the top side of the base.
Step 2 Place the base against the wall. The skirtboard must have a maximum width of 15mm and a maximum height of 100mm.
Step 3 Set the adjustable feet’s height using the included bubble level and allen key.
NOTE
Some versions of the base support do not include adjustable feet. In those cases, ignore this step.
Step 4 Secure the base support with 2 expansion screws. Refer to step 4 to 6 of the next section for more details.

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System installation (typical configuration with 2 batteries and inverter)
Step 1 Align the first battery pack with the base support according to the locating pins. After alignment, press down the battery tightly
to make sure it fits into place.
Step 2 Install four locating pins (supplied with the battery module) on top of the battery.
Step 3 Temporarily rest the retaining brackets in their respective positions on the battery module. Mark the position of the 2 holes to
be made on the wall, then remove the two brackets.
Step 4 Cover the support base and the battery module(s) with the shipping bag to avoid dust contamination. Drill two holes Ø= 10mm,
depth = 60mm in the previously marked positions.
DANGER
Before drilling holes, check whether there are electrical pipes or other pipes buried in the walls to avoid
risks.

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Step 5 Install the expansion tubes on the wall.
Step 6 Fasten the brackets to the battery with 4x M4 security screws supplied (tighten with a torque of 1.2Nm) and secure the
brackets to the wall using the 2 expansion screws supplied (tighten with a torque of 2-2.5Nm).
Step 7 Install the following battery pack according to step 1 and 2. Do not install more than 4 batteries on a single stack of modules.
Step 8 Fasten the grounding metal strap between every battery with 4x M4 security screws supplied (tighten with a torque of 1.2Nm).
Step 9 Position the wall bracket on the battery module taking care to center the dedicated holes in the bracket with the locating pins
on the battery. Temporarily fix the bracket with the jam screws and mark the position of the 6 holes to be drilled on the wall.

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Step 10 Remove the mounting bracket, cover the batteries with the shipping bag to avoid dust contamination and then drill the six
holes Ø= 10mm, depth = 60mm in the previously marked positions.
Step 11 Install expansion tubes as described in step 5. Secure the wall bracket to the battery with the 2 jam screws. Fasten 6x M6
expansion screws and the M4 security screw to secure the bracket in its position.
Step 12 Lift the inverter and tilt it backwards 10-15 degrees. Move it close to the locating pins on the bracket. Then lower the inverter
while locating the locating pin guides into position.

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Step 13 Install the M4 security screw on the side of inverter (tighten with a torque of 1.2Nm).

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Side installation
NOTE
For the side installation of the battery module, the “Side mounting kit” is needed.
Step 1 To install the support base and the battery modules, follow the instructions reported in the previous chapter (steps 1-8), for
all the battery modules to be installed (max 4 battery modules on a single tower).
Step 2 Place the top cover on the upper battery module as shown in the picture below.
Step 3 Secure the top cover to the battery module with 4x M5 screws supplied.