REFU REFUsol 100K Manuel utilisateur
Document No./Issue | 982059/02
Issue Date | 2020-11
Operating manual
Solar Inverter
REFUsol 100K
Product | REFUsol 100K
Languages | English
EnglishDeutsch
2
Copyright
© REFU Elektronik GmbH
The reproduction, distribution and utilization of this
document as well as the communication of its contents
to others without express authorization is prohibited.
Offenders will be held liable for the payment of dama-
ges. All rights reserved in the event of the grant of a
patent, utility model or design.
Liability
The data specified is only used to describe the product
and should not be interpreted as warranted characte-
ristics in the legal sense. The right to change the con-
tent of this documentation and the availability of the
products are reserved.
Publisher
REFU Elektronik GmbH
Marktstraße 185
72793 Pfullingen, GERMANY
✆ +49 7121 4332 0
✆ +49 7121 4332 333 (Service)
℻ +49 7121 4332 140
✉
✉
www.refu.com
3REFUsol 100K
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EnglishDeutsch
Contents
1 About this Manual...................................... 5
1.1 Scope of this Manual .........................................5
1.2 Target Group of this Manual .............................5
1.3 Presentation of Information..............................5
1.3.1 Symbols ..................................................................... 6
1.3.2 Warnings in this Manual............................................ 6
2 Safety and Responsibility........................... 7
2.1 Safety Guidelines...............................................7
2.2 Rules for Safe Installation and Operation.........7
2.3 Symbols and Warnings on the Product.............8
2.4 Designated Use..................................................9
2.5 Requirements for Electricians..........................9
2.6 General Safety Instructions...............................9
2.7 Five Safety Rules When Working on
Electrical Systems...........................................10
3 Technical Description .............................. 10
3.1 ConnectionBox Central/Decentral..................10
3.2 Components of the Decentral ConnectionBox11
3.3 Components of the Central ConnectionBox ...11
3.4 Device Size and Distances...............................12
3.5 Mounting Location .......................................... 13
3.6 Dimensions ..................................................... 14
3.7 Functionality of the Inverter........................... 14
3.8 Requirements for the Infrastructure ............. 15
4 Installation ............................................... 16
4.1 General Warnings........................................... 16
4.2 Auxiliary Means and Tools.............................. 17
4.3 Unpacking the ConnectionBox ....................... 17
4.4 Mounting the ConnectionBox ......................... 18
4.4.1 Mounting the ConnectionBox Vertically.................. 18
4.4.2 Mounting the ConnectionBox Horizontally ............. 19
4.4.3 Mounting the ConnectionBox on a Pole.................. 19
4.5 Wiring DC and AC Cables
(Central ConnectionBox) ................................ 19
4.6 Wiring AC Cables (Decentral ConnectionBox) 20
4.7 Wiring DC Cables (Decentral ConnectionBox)22
4.8 Checking String Fuses ................................... 24
4.9 Installing the Surge Protection Devices
SPD (optional) ................................................. 25
4.10 Communication Connections ......................... 25
4 REFUsol 100K
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4.11 Connect RS485/LAN........................................26
4.12 RJ45 Connector Cabling..................................27
4.13 Setting up the Communication........................28
4.13.1 RS485 Network........................................................ 28
4.13.2 Ethernet Network.................................................... 28
4.13.3 Ethernet Direct Connection..................................... 29
4.14 Connect Remote Off Signal (DRM 0) ...............29
4.15 Testing Electrical Safety .................................30
4.16 Unpacking the PowerUnit ...............................30
4.17 Hooking in the PowerUnit ...............................31
4.18 Connecting AC, DC and PEN ...........................32
4.19 Closing and Fixing the PowerUnit...................33
5 Commissioning ........................................ 33
5.1 Before Startup.................................................33
5.2 Startup.............................................................33
5.3 Configuring Inverters with the
Mobile App REFUset........................................35
5.4 Configuring Inverters with the
PC Software REFUset......................................36
6 REFUlog – Monitoring portal................... 37
7 Technical Data ......................................... 38
7.1 PowerUnit........................................................38
7.2 ConnectionBox Variants ................................. 43
8 Single Line Diagrams............................... 44
9 Maintenance............................................. 46
9.1 General Warnings........................................... 46
9.2 Replacement................................................... 47
9.2.1 Replacing the PowerUnit Fan.................................. 47
9.2.2 Replacing the Central ConnectionBox Fan............. 47
9.2.3 Checking or Replacing the PV Fuses ...................... 48
9.2.4 Replacing the DC Cable Bushing
(decentral ConnectionBox)...................................... 49
9.2.5 Replacing the Sealing Gasket of the
ConnectionBox......................................................... 49
9.3 Periodicity of Maintenance ............................. 49
10 Disposal....................................................50
11 Troubleshooting....................................... 51
11.1 Error List......................................................... 51
About this Manual 5
Scope of this Manual
REFUsol 100K
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EnglishDeutsch
1 About this Manual
1.1 Scope of this Manual
This manual applies to the following products:
∘REFUsol 100K Solar Inverter
∘REFUsol Decentral ConnectionBox
∘REFUsol Central ConnectionBox
Fig. 1: Power rating depending on AC voltage
1.2 Target Group of this Manual
This manual is intended for installers, operators,
service technicians and plant operators.
This manual contains basic information, to assem-
ble the product safely and properly, to transport, to put
into operation and to operate.
▷Read this manual completely and in particular the
chapter "Safety and Responsibility", before you
work with the product.
1.3 Presentation of Information
To enable you to handle your product safely and
quickly with these instructions, uniform warnings,
symbols, designations and abbreviations are used.
About this Manual6
Presentation of Information
REFUsol 100K
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1.3.1 Symbols
The following symbols indicate instructions which
are intended to make the instructions easier to under-
stand.
1.3.2 Warnings in this Manual
Warnings in this manual indicate an action where
there is a risk of personal injury or property damage.
Always observe the measures described to avert the
danger.
The warnings in this manual are presented in a box
that contains the following information:
Tab. 1: Symbols/signs
Symbol Meaning
Useful information on the optimal and most eco-
nomical use of the product.
✅Prerequisite for an action that must be com-
pleted/executed beforehand.
▷Single action step that is to be executed.
▸Sub-step of an action step that is to be executed.
⟇Alternative action that can also be executed. Par-
tially conditioned by other prerequisites.
1.
2.
3.
Numbered action instruction that is to be exe-
cuted in the order listed.
➪Result of the action instruction.
... > ... Menu sequence in a software that is to be clicked
one after the other.
SIGNAL WORD/WARNING CATEGORY
Type and source of danger
Consequences of ignoring the warnings.
▸Measures required to avoid the danger.
Safety and Responsibility 7
Safety Guidelines
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EnglishDeutsch
2 Safety and Responsibility
The product has been manufactured in accordance
with the generally accepted state of the art. Neverthe-
less, there is a risk of personal injury and property
damage if you do not observe this chapter and the
warnings in this manual.
▷Read this manual thoroughly and completely before
using the product.
2.1 Safety Guidelines
Installation, commissioning, and operation of the
product must be carried out by (electrically) qualified
personnel.
▷Read all technical information and safety instruc-
tions before installing and using the product.
2.2 Rules for Safe Installation and Operation
∘Do not attempt to install or operate the product
without proper training.
∘Ground the product properly.
DANGER
Leads directly to death or serious personal injury if ig-
nored.
▸Follow the warnings to avoid death or serious injury!
WARNING
May result in death or serious personal injury if ignored.
▸Follow the warnings to avoid serious injuries!
CAUTION
May cause minor personal injury if ignored.
▸Follow the warnings to avoid injury!
NOTICE
Can lead to property damage if ignored.
▸Follow the warnings to avoid damage or destruction of
the product!
Safety and Responsibility8
Symbols and Warnings on the Product
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∘Ground the metal supporting frame of the PV mod-
ules using potential equalization.
∘Only use class A PV modules according to
IEC 61730.
∘Connect all cables properly.
∘Before switching on, check the AC and DC voltages
and polarity. Observe the information on the data
sheet or type plate.
∘Take appropriate precautions to protect against
electrostatic discharge (ESD).
∘Always be careful around this equipment.
∘Never remove the PowerUnit (inverter) cover.
∘To ensure safe operation, carry out all work profes-
sionally, including transport, storage, assembly, in-
stallation and operation.
2.3 Symbols and Warnings on the Product
Fig. 2: Symbols on the product
1General warning
2Warning of electrical voltage
3Warning of hot surface
4Follow the instructions before
use
5Ground before use
6Warning of electrical voltage on
AC and DC side. All strings on
the DC side are live
7Unlock before main-
tenance or repair
8Discharge time of 2
minutes
9Warning of a de-
vice's susceptibility
to electrostatic dis-
charge
3
Discharge
time
2 min.
1 2 3
9876
4 5
Safety and Responsibility 9
Designated Use
REFUsol 100K
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EnglishDeutsch
2.4 Designated Use
The REFUsol 100K, is a solar inverter, which trans-
forms the direct current generated by the PV generator
(photovoltaic modules) into alternating current and can
feed it into mains supply.
The REFUsol 100K complies with protection class
IP65 (ConnectionBox: IP54) and can be used indoors
and outdoors.
The REFUsol 100K is only intended for use with the
corresponding central or decentral ConnectionBox.
2.5 Requirements for Electricians
The activities described in this manual require basic
knowledge of the electrical system, the associated
technical terms and the relevant technical rules. To
ensure safe use, these activities may therefore only be
carried out by an appropriate specialist or a trained
person under the supervision of a specialist.
A skilled person is a person who, on the basis of his
professional training, his knowledge and experience as
well as his knowledge of the relevant regulations, can
assess the work assigned to him, recognize possible
dangers and take suitable safety measures.
2.6 General Safety Instructions
▷Observe the valid regulations for accident preven-
tion and environmental protection.
▷Observe the safety regulations and regulations of
the country in which the product is used.
▷Only use products in technically perfect condition.
▷Observe all notes on the product.
▷Persons installing, operating or maintaining prod-
ucts must not be under the influence of drugs or
medication.
▷Use only accessories and spare parts approved by
REFU Elektronik GmbH in order to exclude a per-
sonal hazard due to unsuitable spare parts.
▷Observe the technical data and ambient conditions
specified in the manual.
▷Do not put the product into operation until it has
been determined that it complies with country-spe-
cific rules, regulations, safety regulations/certifi-
cates and application regulations.
Technical Description10
Five Safety Rules When Working on Electrical Systems
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2.7 Five Safety Rules When Working on Elec-
trical Systems
Disconnect electrical systems (lock and tag)
according to the five safety rules:
▷Unlock and disconnect completely.
▷Secure against re-connection.
▷Check that there is no voltage (DC and AC).
▷Carry out earthing and short-circuiting.
▷Provide protection against adjacent live parts.
3 Technical Description
3.1 ConnectionBox Central/Decentral
Fig. 3: Available variants: central and decentral
DecentralCentral
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